{"id":965,"date":"2025-11-24T09:29:50","date_gmt":"2025-11-24T09:29:50","guid":{"rendered":"https:\/\/totalquartzworks.com\/?page_id=965"},"modified":"2026-01-05T07:54:08","modified_gmt":"2026-01-05T07:54:08","slug":"custom-high-pressure-quartz-tube-solution","status":"publish","type":"page","link":"https:\/\/quartz.10smt.com\/fr\/custom-high-pressure-quartz-tube-solution\/","title":{"rendered":"Solution de tube de quartz \u00e0 haute pression"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"965\" class=\"elementor elementor-965\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea7c036 e-con-full e-flex e-con e-parent\" data-id=\"ea7c036\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-476dc7f e-con-full e-flex e-con e-child\" data-id=\"476dc7f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e5ae9c9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"e5ae9c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed2ce49 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"ed2ce49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb97dde elementor-widget elementor-widget-heading\" data-id=\"fb97dde\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Solution de tube de quartz \u00e0 haute pression<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f83ac79 elementor-widget elementor-widget-text-editor\" data-id=\"f83ac79\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cet article pr\u00e9sente un cas r\u00e9el o\u00f9 un tube de quartz \u00e0 haute pression a \u00e9t\u00e9 n\u00e9cessaire pour une utilisation exp\u00e9rimentale.<br data-start=\"785\" data-end=\"788\" \/>Il met l'accent sur la fa\u00e7on dont la r\u00e9sistance \u00e0 la pression, les limites de temp\u00e9rature et les questions pratiques de conception ont \u00e9t\u00e9 \u00e9valu\u00e9es pour parvenir \u00e0 une solution r\u00e9alisable.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-098e188 e-con-full e-flex e-con e-parent\" data-id=\"098e188\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e922f86 e-con-full e-flex e-con e-child\" data-id=\"e922f86\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-838b3ad elementor-hidden-mobile elementor-widget elementor-widget-table-of-contents\" data-id=\"838b3ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a7750a8 e-con-full e-flex e-con e-child\" data-id=\"a7750a8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc147a8 elementor-widget elementor-widget-heading\" data-id=\"dc147a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Contexte<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f40d528 elementor-widget elementor-widget-text-editor\" data-id=\"f40d528\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"65\" data-end=\"90\"><strong data-start=\"65\" data-end=\"88\">Historique de la client\u00e8le<\/strong><\/p><p data-start=\"65\" data-end=\"90\">Un \u00e9tudiant dipl\u00f4m\u00e9 du d\u00e9partement d'ing\u00e9nierie nucl\u00e9aire d'une grande universit\u00e9 scientifique et technologique de Cor\u00e9e du Sud, sp\u00e9cialis\u00e9 dans la thermohydraulique et les syst\u00e8mes \u00e9nerg\u00e9tiques. L'exp\u00e9rience n\u00e9cessite un environnement \u00e0 haute pression et \u00e0 haute temp\u00e9rature.<\/p><p data-start=\"341\" data-end=\"531\"><strong data-start=\"341\" data-end=\"361\">Exigence fondamentale<\/strong><br data-start=\"361\" data-end=\"364\" \/>Tube de quartz sur mesure : haute pr\u00e9cision (diam\u00e8tre int\u00e9rieur de 7,75 mm, tol\u00e9rance \u00e0 confirmer), capable de r\u00e9sister \u00e0 une pression \u00e9lev\u00e9e (10 MPa) et \u00e0 une temp\u00e9rature \u00e9lev\u00e9e (500 \u00b0C).<\/p><p data-start=\"533\" data-end=\"714\"><strong data-start=\"533\" data-end=\"558\">Exigences implicites<\/strong><br data-start=\"558\" data-end=\"561\" \/>Le tube de quartz doit \u00eatre d'une grande puret\u00e9 (pour \u00e9viter que les impuret\u00e9s n'interf\u00e8rent avec l'imagerie IR) et peut n\u00e9cessiter une certification du mat\u00e9riau (par exemple, les normes SEMI).<\/p><p data-start=\"716\" data-end=\"743\"><strong data-start=\"716\" data-end=\"741\">Points de risque technique<\/strong><\/p><ul data-start=\"744\" data-end=\"933\"><li data-start=\"744\" data-end=\"858\"><p data-start=\"746\" data-end=\"858\">Adaptation du coefficient de dilatation thermique du tube de quartz au dispositif de chauffage ITO \u00e0 500 \u00b0C pour \u00e9viter les fissures.<\/p><\/li><li data-start=\"859\" data-end=\"933\"><p data-start=\"861\" data-end=\"933\">L'application de CO\u2082 \u00e0 haute pression peut n\u00e9cessiter un rapport d'essai d'\u00e9tanch\u00e9it\u00e9 au gaz.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84b978f elementor-widget elementor-widget-heading\" data-id=\"84b978f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Un tube en quartz peut-il r\u00e9sister \u00e0 une pression de 10 MPa ? (Partie 1 de 6)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a30d97 elementor-widget elementor-widget-text-editor\" data-id=\"7a30d97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"wp-block-heading\">1. Analyse de la r\u00e9sistance \u00e0 la pression des tubes en quartz<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73b64bf elementor-widget elementor-widget-text-editor\" data-id=\"73b64bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La r\u00e9sistance \u00e0 la pression d'un tube de quartz (silice fondue) d\u00e9pend de plusieurs facteurs, notamment<\/p><ul class=\"wp-block-list\"><li><strong>Puret\u00e9 des mat\u00e9riaux<\/strong>\u00a0(le quartz de plus grande puret\u00e9 est plus r\u00e9sistant)<\/li><li><strong>Epaisseur de la paroi<\/strong>\u00a0(des parois plus \u00e9paisses offrent une plus grande r\u00e9sistance \u00e0 la pression)<\/li><li><strong>Processus de fabrication<\/strong>\u00a0(tube sans soudure ou tube soud\u00e9)<\/li><li><strong>Effets de la temp\u00e9rature<\/strong>\u00a0(les temp\u00e9ratures \u00e9lev\u00e9es r\u00e9duisent la r\u00e9sistance m\u00e9canique)<\/li><\/ul><p><strong>Plage de r\u00e9sistance \u00e0 la pression typique pour les tubes de quartz :<\/strong><\/p><ul class=\"wp-block-list\"><li>Tubes de quartz standard du commerce (\u00e9paisseur de paroi de 1 \u00e0 2 mm) : ils supportent g\u00e9n\u00e9ralement une pression statique de 1 \u00e0 3 MPa (10 \u00e0 30 bar).<\/li><li>Tubes de quartz haute pression (\u00e9paisseur de paroi de 3 \u00e0 5 mm, proc\u00e9d\u00e9 de recuit sp\u00e9cial) : peuvent r\u00e9sister \u00e0 5-10 MPa ou plus (production sur mesure requise).<\/li><\/ul><p>Une pression de 10 MPa (~100 bar) est consid\u00e9r\u00e9e comme une haute pression. Les tubes de quartz standard ne peuvent g\u00e9n\u00e9ralement pas r\u00e9pondre directement \u00e0 cette exigence - des tubes \u00e0 parois \u00e9paisses ou sp\u00e9cialement renforc\u00e9s sont n\u00e9cessaires.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-494ecca elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"494ecca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"1001\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-768x1001.jpg\" class=\"attachment-medium_large size-medium_large wp-image-999\" alt=\"Tube quartz haute pression\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-768x1001.jpg 768w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-230x300.jpg 230w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-785x1024.jpg 785w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-9x12.jpg 9w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube.jpg 853w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Tube quartz haute pression<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-af69ac5 elementor-widget elementor-widget-heading\" data-id=\"af69ac5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Principales consid\u00e9rations pour les applications \u00e0 10 MPa<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cf85e1 elementor-widget elementor-widget-text-editor\" data-id=\"1cf85e1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>(1) Calcul de l'\u00e9paisseur de la paroi (estimation)<\/strong><br \/>En utilisant la formule de l'appareil \u00e0 pression cylindrique \u00e0 paroi mince :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f804936 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"f804936\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"293\" height=\"130\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-1.jpg\" class=\"attachment-medium_large size-medium_large wp-image-997\" alt=\"formule 1\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-1.jpg 293w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-1-18x8.jpg 18w\" sizes=\"(max-width: 293px) 100vw, 293px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c1e7fd elementor-widget elementor-widget-text-editor\" data-id=\"6c1e7fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li><strong>\u03c3<\/strong>r\u00e9sistance \u00e0 la traction du quartz (~50 MPa, diminue \u00e0 haute temp\u00e9rature)<\/li><li><strong>P<\/strong>Pression interne (10 MPa)<\/li><li><strong>r<\/strong>rayon int\u00e9rieur (7,75 mm \u2192 rayon 3,875 mm)<\/li><li><strong>t<\/strong>\u00c9paisseur de paroi minimale requise<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf89cd2 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"cf89cd2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"626\" height=\"153\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-2.jpg\" class=\"attachment-medium_large size-medium_large wp-image-998\" alt=\"formule 2\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-2.jpg 626w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-2-300x73.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-2-18x4.jpg 18w\" sizes=\"(max-width: 626px) 100vw, 626px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcc91a5 elementor-widget elementor-widget-text-editor\" data-id=\"bcc91a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Dans la pratique, il faut tenir compte des \u00e9l\u00e9ments suivants :<\/p><ul class=\"wp-block-list\"><li>Facteur de s\u00e9curit\u00e9 (au moins 3-5\u00d7, \u00e9paisseur de paroi recommand\u00e9e \u22653 mm)<\/li><li>R\u00e9duction de la r\u00e9sistance \u00e0 haute temp\u00e9rature (\u00e0 500 \u00b0C, la r\u00e9sistance peut diminuer de 30 \u00e0 50%)<\/li><\/ul><p>Conclusion :<br \/>Un tube de quartz de haute puret\u00e9 avec une \u00e9paisseur de paroi d'au moins 3 \u00e0 5 mm est n\u00e9cessaire pour r\u00e9sister en toute s\u00e9curit\u00e9 \u00e0 une pression de 10 MPa.<\/p><p>(2) Autres facteurs critiques<\/p><ul class=\"wp-block-list\"><li>\u00c9tanch\u00e9it\u00e9 d'extr\u00e9mit\u00e9 : La haute pression n\u00e9cessite des brides sp\u00e9ciales ou une encapsulation m\u00e9tallique pour \u00e9viter la fissuration des orifices.<\/li><li>D\u00e9fauts de surface : Les microfissures ou les bulles r\u00e9duisent consid\u00e9rablement la r\u00e9sistance \u00e0 la pression - un quartz sans d\u00e9faut de qualit\u00e9 optique est n\u00e9cessaire.<\/li><li>Essai de pression cyclique : Si l'exp\u00e9rience implique des fluctuations de pression, l'\u00e9valuation de la dur\u00e9e de vie en fatigue est n\u00e9cessaire.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc00a34 elementor-widget elementor-widget-heading\" data-id=\"cc00a34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Solutions recommand\u00e9es<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19539a6 elementor-widget elementor-widget-text-editor\" data-id=\"19539a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>(1) Tube en quartz haute pression sur mesure<\/p><ul class=\"wp-block-list\"><li>Mat\u00e9riau : Silice fondue de haute puret\u00e9 (SiO\u2082 &gt; 99,99%) pour minimiser l'affaiblissement li\u00e9 \u00e0 l'impuret\u00e9.<\/li><li>\u00c9paisseur de la paroi : Recommand\u00e9e \u22653 mm (diam\u00e8tre ext\u00e9rieur \u224814-15 mm).<\/li><li>Processus de fabrication :<ul class=\"wp-block-list\"><li>Dessin sans soudure (\u00e9viter les points faibles soud\u00e9s)<\/li><li>Recuit (\u00e9limination des contraintes internes)<\/li><li>Polissage de la surface (r\u00e9duction des microfissures)<\/li><\/ul><\/li><\/ul><p>(2) Solutions alternatives<\/p><ul class=\"wp-block-list\"><li>Tube composite quartz + m\u00e9tal : Couche interne de quartz (r\u00e9sistance \u00e0 la corrosion), couche externe d'acier inoxydable (r\u00e9sistance \u00e0 la pression), mais peut affecter la transmission des IR.<\/li><li>Tube en saphir : R\u00e9sistance \u00e0 la pression beaucoup plus \u00e9lev\u00e9e (jusqu'\u00e0 100 MPa), mais co\u00fbt extr\u00eamement \u00e9lev\u00e9 (~10\u00d7 quartz).<\/li><\/ul><p>(3) Points de communication avec les fournisseurs<\/p><ul class=\"wp-block-list\"><li>Pr\u00e9ciser clairement les conditions de travail : \"10 MPa de pression statique + 500 \u00b0C de temp\u00e9rature \u00e9lev\u00e9e\".<\/li><li>Demander un rapport d'essai de pression (par exemple, pression d'\u00e9clatement \u226530 MPa)<\/li><li>Confirmer la m\u00e9thode de traitement final (filetage, bride ou joint torique)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b7a475 elementor-widget elementor-widget-heading\" data-id=\"0b7a475\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Consid\u00e9rations relatives \u00e0 l'application<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1eb78e1 elementor-widget elementor-widget-text-editor\" data-id=\"1eb78e1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li>Fluide CO\u2082 \u00e0 haute pression : Veiller \u00e0 ce qu'il n'y ait pas de r\u00e9action chimique entre le quartz et le CO\u2082 (g\u00e9n\u00e9ralement sans danger).<\/li><li>Compatibilit\u00e9 de l'\u00e9l\u00e9ment chauffant ITO : L'\u00e9l\u00e9ment chauffant de 9,53 mm de diam\u00e8tre ext\u00e9rieur doit \u00eatre adapt\u00e9 au tube de quartz plus \u00e9pais (diam\u00e8tre ext\u00e9rieur personnalis\u00e9 \u224814-15 mm).<\/li><li>Protection de la s\u00e9curit\u00e9 : Installer des soupapes de s\u00e9curit\u00e9 et des boucliers anti-explosion pour \u00e9viter les blessures dues \u00e0 la rupture du tube.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e95acc7 elementor-widget elementor-widget-heading\" data-id=\"e95acc7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c33f01 elementor-widget elementor-widget-text-editor\" data-id=\"9c33f01\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Un tube de quartz standard (\u00e9paisseur de paroi de 1 \u00e0 2 mm) ne peut pas r\u00e9pondre \u00e0 l'exigence de haute pression de 10 MPa.<\/p><p>Un tube de quartz haute pression personnalis\u00e9 est n\u00e9cessaire avec :<\/p><ul class=\"wp-block-list\"><li>\u00c9paisseur de la paroi \u22653 mm (diam\u00e8tre ext\u00e9rieur \u224814-15 mm)<\/li><li>Silice fondue sans soudure de haute puret\u00e9<\/li><li>Certification de l'\u00e9preuve de pression<\/li><\/ul><p>Il est recommand\u00e9 de contacter un\u00a0<a href=\"https:\/\/quartz.10smt.com\/fr\/contact-us\/\" data-type=\"page\" data-id=\"309\">fabricant de quartz sp\u00e9cialis\u00e9\u00a0<\/a>et de sp\u00e9cifier des exigences techniques d\u00e9taill\u00e9es.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12ad9e6 elementor-widget elementor-widget-heading\" data-id=\"12ad9e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">La diff\u00e9rence entre la r\u00e9sistance \u00e0 la pression interne et la r\u00e9sistance \u00e0 la pression externe des tubes de quartz (Partie 2 de 6)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2eff042 elementor-widget elementor-widget-text-editor\" data-id=\"2eff042\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La r\u00e9sistance \u00e0 la pression de <a href=\"https:\/\/quartz.10smt.com\/fr\/quartz-tube\/\">tubes de quartz<\/a> varie selon qu'ils sont soumis \u00e0 une pression interne (pression interne) ou \u00e0 une pression externe (pression externe), et est principalement influenc\u00e9e par les propri\u00e9t\u00e9s m\u00e9caniques du mat\u00e9riau, la forme de la structure et le mode de d\u00e9faillance.<\/p><p>Si l'on prend l'exemple de la forme structurelle des cercles int\u00e9rieurs et ext\u00e9rieurs, voici les principales diff\u00e9rences :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac406f8 elementor-widget elementor-widget-heading\" data-id=\"ac406f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Comparaison de la r\u00e9sistance \u00e0 la pression interne (pression interne) et de la r\u00e9sistance \u00e0 la pression externe (pression externe)\uff1a<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29d2971 elementor-widget elementor-widget-shortcode\" data-id=\"29d2971\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-13\" class=\"tablepress tablepress-id-13\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Caract\u00e9ristiques<\/th><th class=\"column-2\">R\u00e9sistance \u00e0 la pression interne (pression interne)<\/th><th class=\"column-3\">R\u00e9sistance \u00e0 la pression externe (pression externe)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Direction de la force<\/td><td class=\"column-2\">La pression interne se dilate vers l'ext\u00e9rieur<\/td><td class=\"column-3\">La pression ext\u00e9rieure comprime vers l'int\u00e9rieur<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Mode destruction<\/td><td class=\"column-2\">Rupture par traction (la paroi du tube est d\u00e9chir\u00e9e)<\/td><td class=\"column-3\">Instabilit\u00e9 par flambage (effondrement de la paroi du tube)<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Facteurs cl\u00e9s d'influence<\/td><td class=\"column-2\">La r\u00e9sistance \u00e0 la traction du quartz (~50 MPa)<\/td><td class=\"column-3\">La r\u00e9sistance \u00e0 la compression du quartz (~1100MPa) est toutefois limit\u00e9e par la stabilit\u00e9 g\u00e9om\u00e9trique dans la pratique.<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Valeur de r\u00e9sistance \u00e0 la tension typique<\/td><td class=\"column-2\">Tube de quartz standard : 1~3MPa<br \/>\nTube \u00e9paissi\/haute pression : 5~20MPa<\/td><td class=\"column-3\">Tube de quartz standard : 0,1~0,5MPa<br \/>\nTube \u00e9paissi\/haute pression : 1~5MPa<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Sc\u00e9narios applicables<\/td><td class=\"column-2\">R\u00e9acteur \u00e0 haute pression, tuyau d'acheminement du fluide<\/td><td class=\"column-3\">Environnement sous vide, test de pression externe<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-13 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b40d5ca elementor-widget elementor-widget-heading\" data-id=\"b40d5ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Analyse d\u00e9taill\u00e9e<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c9f5843 elementor-widget elementor-widget-text-editor\" data-id=\"c9f5843\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>M\u00e9canisme de rupture : Le quartz est un mat\u00e9riau fragile dont la r\u00e9sistance \u00e0 la traction est faible (~50MPa). Sous haute pression, la paroi du tuyau est soumise \u00e0 une contrainte de traction circonf\u00e9rentielle et est susceptible de se fissurer aux points faibles (tels que les microfissures et les bulles).<\/p><p>La formule de la contrainte de cerclage (th\u00e9orie des parois minces) est exprim\u00e9e comme suit :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14da11b elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"14da11b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"314\" height=\"133\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-3.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1008\" alt=\"formule 3\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-3.jpg 314w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-3-300x127.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-3-18x8.jpg 18w\" sizes=\"(max-width: 314px) 100vw, 314px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1566329 elementor-widget elementor-widget-heading\" data-id=\"1566329\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Explication des variables :<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23eeddd elementor-widget elementor-widget-text-editor\" data-id=\"23eeddd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>\u03c3<\/em>cerceau : Contrainte de d\u00e9formation (MPa)<\/p><p>P : Pression interne (MPa)<\/p><p>r : Rayon int\u00e9rieur (mm)<\/p><p>t : Epaisseur de la paroi (mm)<\/p><p>Notes cl\u00e9s :<\/p><p>Applicabilit\u00e9 : Valable pour les tubes \u00e0 paroi mince (t\/r\u22640,1)<\/p><p>Facteur de s\u00e9curit\u00e9 : La contrainte de conception r\u00e9elle doit inclure une marge de s\u00e9curit\u00e9 de 3 \u00e0 5 fois.<\/p><p>Limitation : Ne tient pas compte des contraintes axiales et des effets d'extr\u00e9mit\u00e9.<\/p><p>Exemple de calcul :<br \/>Pour un tube avec<\/p><p>r=5mm, t=1mm, et P=10MPa :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59d7f1e elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"59d7f1e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"126\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-4.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1009\" alt=\"formule 4\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-4.jpg 425w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-4-300x89.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-4-18x5.jpg 18w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3025ac7 elementor-widget elementor-widget-text-editor\" data-id=\"3025ac7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>(Comparer avec la r\u00e9sistance \u00e0 la traction du quartz ~50MPa pour \u00e9valuer le risque de d\u00e9faillance).<\/p><p>Normes de r\u00e9f\u00e9rence :<\/p><p>ASME BPVC Section VIII (r\u00e9servoirs sous pression)<\/p><p>ISO 3585 (Sp\u00e9cifications du quartz fondu)<\/p><p>Faites-moi savoir si vous avez besoin d'une d\u00e9rivation ou d'une adaptation au cas par cas (par exemple, la th\u00e9orie de la paroi \u00e9paisse).<\/p><p>Si<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2bf95c elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"e2bf95c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"63\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/hoop.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1010\" alt=\"cerceau\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/hoop.jpg 79w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/hoop-15x12.jpg 15w\" sizes=\"(max-width: 79px) 100vw, 79px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17e770d elementor-widget elementor-widget-text-editor\" data-id=\"17e770d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u226550MPa\uff0cle tube de quartz peut se rompre.<\/p><p>Calcul pour ce cas :<\/p><p>Tube en quartz d'un diam\u00e8tre int\u00e9rieur de 7,75 mm et d'une \u00e9paisseur de paroi de 1 mm, r\u00e9sistance th\u00e9orique \u00e0 la pression :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24af69f elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"24af69f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"519\" height=\"124\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-5.jpg\" class=\"attachment-large size-large wp-image-1011\" alt=\"formule 5\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-5.jpg 519w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-5-300x72.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-5-18x4.jpg 18w\" sizes=\"(max-width: 519px) 100vw, 519px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e03d36 elementor-widget elementor-widget-text-editor\" data-id=\"2e03d36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cependant, la pression de s\u00e9curit\u00e9 r\u00e9elle n'est que de 1 \u00e0 3 MPa (les d\u00e9fauts et les effets de la temp\u00e9rature doivent \u00eatre pris en compte).<\/p><p>(2) R\u00e9sistance \u00e0 la pression externe (pression ext\u00e9rieure)<br \/>M\u00e9canisme de d\u00e9faillance : Bien que le quartz ait une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la compression (~1100 MPa), les tubes minces sont susceptibles de se d\u00e9former (comme une paille \u00e9cras\u00e9e).<\/p><p>Pression critique de flambage (formule d'Euler simplifi\u00e9e) :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cff7a8 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"7cff7a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"446\" height=\"160\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-6.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1012\" alt=\"formule 6\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-6.jpg 446w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-6-300x108.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-6-18x6.jpg 18w\" sizes=\"(max-width: 446px) 100vw, 446px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa0a292 elementor-widget elementor-widget-text-editor\" data-id=\"aa0a292\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>E = Module d'\u00e9lasticit\u00e9 du quartz (~72 GPa)<\/p><p>\u03bd = coefficient de Poisson (~0,17)<\/p><p>D = Diam\u00e8tre ext\u00e9rieur (mm)<\/p><p>t = Epaisseur de la paroi (mm)<\/p><p>Notes cl\u00e9s :<\/p><p>1. cette formule s'applique aux tubes \u00e0 paroi mince soumis \u00e0 une pression externe uniforme.<\/p><p>2. la pression de s\u00e9curit\u00e9 r\u00e9elle doit \u00eatre assortie d'un facteur de s\u00e9curit\u00e9 (g\u00e9n\u00e9ralement de 3 \u00e0 5 fois).<\/p><p>3. les imperfections g\u00e9om\u00e9triques (par exemple, l'ovalisation) r\u00e9duisent consid\u00e9rablement la valeur critique de P<\/p><p>Exemple : Pour un tube avec D=10mm et t=1mm :<\/p><p>P critique \u22481,5MPa (th\u00e9orique),<\/p><p>Pression pratique de s\u00e9curit\u00e9&lt;0,5MPa<\/p><p><strong>Exemple de calcul :<\/strong><\/p><p><strong>Pour un tube de quartz de diam\u00e8tre ext\u00e9rieur = 10 mm et d'\u00e9paisseur de paroi = 1 mm, la pression critique de flambage est calcul\u00e9e comme suit :<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a0d529 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"0a0d529\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"675\" height=\"186\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-7.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1013\" alt=\"formule 7\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-7.jpg 675w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-7-300x83.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-7-18x5.jpg 18w\" sizes=\"(max-width: 675px) 100vw, 675px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c52760 elementor-widget elementor-widget-text-editor\" data-id=\"0c52760\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Remarque :<\/strong><\/p><p><strong>La pression externe r\u00e9elle de s\u00e9curit\u00e9 est g\u00e9n\u00e9ralement &lt; 0,5 MPa (il faut tenir compte des imperfections g\u00e9om\u00e9triques).<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6613a71 elementor-widget elementor-widget-heading\" data-id=\"6613a71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Analyse du sc\u00e9nario de votre application  <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1e4ed0 elementor-widget elementor-widget-text-editor\" data-id=\"e1e4ed0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>(1) CO\u2082 interne haute pression (10 MPa) \u00a0<\/p><p>Exigence : Diam\u00e8tre int\u00e9rieur de 7,75 mm, capable de r\u00e9sister \u00e0 10 MPa. \u00a0<\/p><p>Probl\u00e8me : Les tubes de quartz standard (\u00e9paisseur de paroi de 1 \u00e0 2 mm) ne peuvent pas r\u00e9pondre \u00e0 l'exigence (th\u00e9oriquement, l'\u00e9paisseur de paroi doit \u00eatre \u22653 mm).<\/p><p>Solution : \u00a0<\/p><p>Tubes de quartz \u00e0 parois \u00e9paisses fabriqu\u00e9s sur mesure (par exemple, \u00e9paisseur de la paroi 3-5 mm, diam\u00e8tre ext\u00e9rieur \u224814-17 mm). \u00a0<\/p><p>Utiliser des tubes en saphir (r\u00e9sistants \u00e0 la pression &gt;100 MPa, mais co\u00fbt \u00e9lev\u00e9).<\/p><p>Traduit avec DeepL.com (version gratuite)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1058791 elementor-widget elementor-widget-heading\" data-id=\"1058791\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Conclusion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8a9456 elementor-widget elementor-widget-text-editor\" data-id=\"b8a9456\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>R\u00e9sistance \u00e0 la pression interne (pression interne) : Limit\u00e9s par la r\u00e9sistance \u00e0 la traction, les tubes de quartz ordinaires peuvent supporter des pressions de 1 \u00e0 3 MPa. Pour des pressions de 10 MPa, des tubes plus \u00e9pais doivent \u00eatre fabriqu\u00e9s sur mesure.<\/p><p>R\u00e9sistance \u00e0 la pression externe (pression externe) : Limit\u00e9e par la stabilit\u00e9 au flambage, la r\u00e9sistance \u00e0 la pression est g\u00e9n\u00e9ralement inf\u00e9rieure \u00e0 0,5 MPa. La compression externe doit \u00eatre \u00e9vit\u00e9e.<\/p><ul class=\"wp-block-list\"><li>Votre exp\u00e9rience : \u00a0<\/li><li>Pression interne de 10 MPa \u2192 Des tubes de quartz personnalis\u00e9s haute pression (\u00e9paisseur de paroi \u2265 3 mm) doivent \u00eatre utilis\u00e9s.<\/li><li>En consid\u00e9rant une temp\u00e9rature de chauffage de 500\u00b0C \u2192 La r\u00e9sistance \u00e0 la compression diminue de 30%-50% \u00e0 haute temp\u00e9rature \u2192 L'\u00e9paisseur th\u00e9orique de la paroi \u2265 3 mm \u00d7 2 = \u2265 6 mm.<\/li><li>Compte tenu des incertitudes li\u00e9es \u00e0 la puret\u00e9, au traitement et au transport des tubes de quartz, une redondance appropri\u00e9e est pr\u00e9vue \u2192 \u00e9paississement redondant de 2 mm (\u00e9paisseur de la paroi \u2265 8 mm).<\/li><li>Pression externe \u2192 Veillez \u00e0 ce que l'appareil soit install\u00e9 sans contrainte m\u00e9canique suppl\u00e9mentaire.<\/li><\/ul><p>Il est recommand\u00e9 d'acheter des tubes de quartz de haute puret\u00e9, dont la puret\u00e9 n'est pas inf\u00e9rieure \u00e0 99,9% :<\/p><p>\"Diam\u00e8tre int\u00e9rieur 7,75 mm, \u00e9paisseur de paroi \u2265 8 mm, r\u00e9sistance \u00e0 la pression statique 10 MPa\".<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fce2db7 elementor-widget elementor-widget-heading\" data-id=\"fce2db7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Relation entre l'\u00e9paisseur de la paroi du tube de quartz et la r\u00e9sistance \u00e0 la pression (partie 3 de 6)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6164295 elementor-widget elementor-widget-text-editor\" data-id=\"6164295\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La r\u00e9sistance \u00e0 la pression des tubes de quartz (en particulier la pression interne, c'est-\u00e0-dire la charge interne) est directement li\u00e9e \u00e0 l'\u00e9paisseur de la paroi. Cependant, il ne s'agit pas d'une simple relation lin\u00e9aire proportionnelle, car elle est influenc\u00e9e par de multiples facteurs tels que la r\u00e9sistance du mat\u00e9riau, les dimensions g\u00e9om\u00e9triques et la temp\u00e9rature. L'analyse cl\u00e9 est la suivante :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ea272a elementor-widget elementor-widget-heading\" data-id=\"8ea272a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Formule de calcul th\u00e9orique (mod\u00e8le de cylindre \u00e0 paroi mince)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f41486a elementor-widget elementor-widget-text-editor\" data-id=\"f41486a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Pour la pression interne (charge interne), la r\u00e9sistance \u00e0 la pression des tubes de quartz peut \u00eatre estim\u00e9e \u00e0 l'aide de la formule des r\u00e9cipients sous pression \u00e0 paroi mince :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a78005d elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"a78005d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"291\" height=\"143\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-14.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1041\" alt=\"Formule 14\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-14.jpg 291w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-14-18x9.jpg 18w\" sizes=\"(max-width: 291px) 100vw, 291px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ed37db elementor-widget elementor-widget-text-editor\" data-id=\"3ed37db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li><strong>P<\/strong>\u00a0= Pression interne maximale admissible (MPa)<\/li><li><strong>\u03c3<\/strong>\u00a0= R\u00e9sistance \u00e0 la traction du quartz (~50 MPa, diminue \u00e0 haute temp\u00e9rature)<\/li><li><strong>t<\/strong>\u00a0= \u00c9paisseur de la paroi (mm)<\/li><li><strong>D<\/strong>\u00a0= Diam\u00e8tre int\u00e9rieur (mm)<\/li><\/ul><p><strong>Principale conclusion :<\/strong><\/p><ul class=\"wp-block-list\"><li>R\u00e9sistance \u00e0 la pression\u00a0<strong>P<\/strong>\u00a0est directement proportionnelle \u00e0 l'\u00e9paisseur de la paroi\u00a0<strong>t<\/strong>\u00a0(plus grande \u00e9paisseur \u2192 plus grande r\u00e9sistance).<\/li><li>R\u00e9sistance \u00e0 la pression\u00a0<strong>P<\/strong>\u00a0est inversement proportionnel au diam\u00e8tre int\u00e9rieur\u00a0<strong>D<\/strong>\u00a0(diam\u00e8tre plus petit \u2192 r\u00e9sistance plus \u00e9lev\u00e9e).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3195ec4 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"3195ec4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"785\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/U-shaped-high-pressure-quartz-tube-1024x785.jpg\" class=\"attachment-large size-large wp-image-1043\" alt=\"Tube de quartz haute pression en forme de U\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/U-shaped-high-pressure-quartz-tube-1024x785.jpg 1024w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/U-shaped-high-pressure-quartz-tube-300x230.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/U-shaped-high-pressure-quartz-tube-768x589.jpg 768w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/U-shaped-high-pressure-quartz-tube-16x12.jpg 16w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/U-shaped-high-pressure-quartz-tube.jpg 1391w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Tube de quartz haute pression en forme de U<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc9501e elementor-widget elementor-widget-heading\" data-id=\"dc9501e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Exemple de calcul<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cacd113 elementor-widget elementor-widget-shortcode\" data-id=\"cacd113\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-14\" class=\"tablepress tablepress-id-14\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Diam\u00e8tre int\u00e9rieur D (mm)<\/th><th class=\"column-2\">\u00c9paisseur de la paroi t (mm)<\/th><th class=\"column-3\">Pression th\u00e9orique P (MPa)<\/th><th class=\"column-4\">Pression de s\u00e9curit\u00e9 r\u00e9elle (MPa)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">7.75<\/td><td class=\"column-2\">1.0<\/td><td class=\"column-3\">12.9<\/td><td class=\"column-4\">3-5<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">7.75<\/td><td class=\"column-2\">2.0<\/td><td class=\"column-3\">25.8<\/td><td class=\"column-4\">6-10<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">7.75<\/td><td class=\"column-2\">3.0<\/td><td class=\"column-3\">38.7<\/td><td class=\"column-4\">10-15<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">10.0<\/td><td class=\"column-2\">1.0<\/td><td class=\"column-3\">10.0<\/td><td class=\"column-4\">2-4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-14 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a869986 elementor-widget elementor-widget-text-editor\" data-id=\"a869986\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Remarque : dans les applications pratiques, il faut tenir compte d'un facteur de s\u00e9curit\u00e9 (g\u00e9n\u00e9ralement de 3 \u00e0 5 fois). Par cons\u00e9quent, les valeurs nominales de pression commerciale des tubes de quartz sont beaucoup plus basses que les valeurs th\u00e9oriques.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1175f2 elementor-widget elementor-widget-heading\" data-id=\"d1175f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Relation r\u00e9elle entre l'\u00e9paisseur de la paroi et la r\u00e9sistance \u00e0 la pression<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b505f90 elementor-widget elementor-widget-text-editor\" data-id=\"b505f90\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>(1) Tubes de quartz standard (\u00e9paisseur de paroi 1-2 mm) :<\/strong><\/p><ul><li style=\"list-style-type: none;\"><ul class=\"wp-block-list\"><li>Diam\u00e8tre int\u00e9rieur 5-10 mm : R\u00e9sistance \u00e0 la pression typique 1-5 MPa<\/li><li>Diam\u00e8tre int\u00e9rieur &gt;10 mm : La r\u00e9sistance \u00e0 la pression diminue encore (par exemple, ID 20 mm, WT 2 mm \u2192 seulement ~1 MPa).<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad3c712 elementor-widget elementor-widget-text-editor\" data-id=\"ad3c712\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>(2) Tubes en quartz haute pression (\u00e9paisseur de paroi 3-5 mm) :<\/strong><\/p><ul><li style=\"list-style-type: none;\"><ul class=\"wp-block-list\"><li>Diam\u00e8tre int\u00e9rieur 5-10 mm : R\u00e9sistance \u00e0 la pression 10-20 MPa (n\u00e9cessite un processus sans soudure + recuit)<\/li><li>Applications : R\u00e9actions chimiques \u00e0 haute pression, exp\u00e9riences sur les fluides supercritiques<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79eeb3a elementor-widget elementor-widget-text-editor\" data-id=\"79eeb3a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>(3) Tubes \u00e0 paroi tr\u00e8s \u00e9paisse (\u00e9paisseur de paroi &gt; 5 mm) :<\/strong><\/p><ul><li style=\"list-style-type: none;\"><ul class=\"wp-block-list\"><li>La r\u00e9sistance \u00e0 la pression peut d\u00e9passer 30 MPa, mais le co\u00fbt est \u00e9lev\u00e9, le poids augmente et l'uniformit\u00e9 du chauffage peut \u00eatre affect\u00e9e.<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e10d34 elementor-widget elementor-widget-heading\" data-id=\"8e10d34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Autres facteurs cl\u00e9s affectant la r\u00e9sistance \u00e0 la pression<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-565f2a3 elementor-widget elementor-widget-text-editor\" data-id=\"565f2a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>(1) Temp\u00e9rature :<\/strong><br \/>La r\u00e9sistance \u00e0 la traction du quartz diminue d'environ 30%-50% \u00e0 500\u00b0C, ce qui n\u00e9cessite une augmentation de l'\u00e9paisseur des parois ou une r\u00e9duction de la pression de travail.<\/p><p><strong>(2) D\u00e9fauts mat\u00e9riels :<\/strong><br \/>Les microfissures, les bulles et autres d\u00e9fauts r\u00e9duisent consid\u00e9rablement la r\u00e9sistance r\u00e9elle \u00e0 la pression. Il convient de choisir des tubes en quartz de qualit\u00e9 optique et sans d\u00e9faut.<\/p><p><strong>(3) Joint d'extr\u00e9mit\u00e9 :<\/strong><br \/>Les extr\u00e9mit\u00e9s des tubes sont susceptibles de se rompre sous haute pression. Des brides ou une encapsulation m\u00e9tallique doivent \u00eatre utilis\u00e9es pour am\u00e9liorer le support.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78d916d elementor-widget elementor-widget-heading\" data-id=\"78d916d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. V\u00e9rification des exigences (diam\u00e8tre int\u00e9rieur 7,75 mm, 10 MPa)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1adbfeb elementor-widget elementor-widget-text-editor\" data-id=\"1adbfeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Calcul de l'\u00e9paisseur minimale des parois :<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e08d80 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"4e08d80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"295\" height=\"146\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-8.jpg\" class=\"attachment-large size-large wp-image-1019\" alt=\"\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-8.jpg 295w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-8-18x9.jpg 18w\" sizes=\"(max-width: 295px) 100vw, 295px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e842eac elementor-widget elementor-widget-text-editor\" data-id=\"e842eac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Mais dans la pratique, il faut tenir compte des \u00e9l\u00e9ments suivants :<\/p><ul class=\"wp-block-list\"><li>Facteur de s\u00e9curit\u00e9 (3-5 fois) \u2192 \u00c9paisseur de la paroi \u2265 2,5-3,0 mm<\/li><li>R\u00e9duction de la r\u00e9sistance \u00e0 haute temp\u00e9rature \u2192 \u00c9paisseur de paroi recommand\u00e9e \u2265 3,5 mm<\/li><\/ul><p><strong>Solution recommand\u00e9e :<\/strong><\/p><ul class=\"wp-block-list\"><li>Param\u00e8tres du tube de quartz personnalis\u00e9 : ID 7.75 mm, OD \u224814-15 mm (WT \u2265 3.5 mm)<\/li><li>Mat\u00e9riau : Quartz fondu de haute puret\u00e9 (SiO\u2082 &gt; 99.99%)<\/li><li>Processus : Etirage sans soudure + recuit<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c828828 elementor-widget elementor-widget-heading\" data-id=\"c828828\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Conclusion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-681fa94 elementor-widget elementor-widget-text-editor\" data-id=\"681fa94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>L'\u00e9paisseur de la paroi est directement proportionnelle \u00e0 la r\u00e9sistance \u00e0 la pression, mais le diam\u00e8tre int\u00e9rieur, la temp\u00e9rature et la qualit\u00e9 du mat\u00e9riau doivent \u00e9galement \u00eatre pris en compte.<\/p><p>Pour les exp\u00e9riences \u00e0 haute pression (10 MPa) avec du quartz fondu de haute puret\u00e9 (SiO\u2082 &gt; 99,99%), sans tenir compte des fluctuations de temp\u00e9rature :<\/p><ul class=\"wp-block-list\"><li>Une \u00e9paisseur de paroi de\u00a0<strong>\u22653,5 mm<\/strong>\u00a0doit \u00eatre utilis\u00e9.<\/li><li>Le processus de recuit + sans soudure doit \u00eatre prioritaire, et un test d'\u00e9tanch\u00e9it\u00e9 doit \u00eatre effectu\u00e9 avant la livraison.<\/li><li>Si une optimisation suppl\u00e9mentaire (r\u00e9duction du poids\/\u00e9conomie) est n\u00e9cessaire, des tubes en saphir (r\u00e9sistance \u00e0 la pression &gt;100 MPa) ou des tubes en quartz haute pression sp\u00e9cialement con\u00e7us peuvent \u00eatre envisag\u00e9s.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07608ea elementor-widget elementor-widget-heading\" data-id=\"07608ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Relation entre l'\u00e9paisseur de la paroi d'un tube de quartz et la pression du vide (Partie 4 de 6)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b651aa elementor-widget elementor-widget-text-editor\" data-id=\"3b651aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La stabilit\u00e9 des tubes de quartz dans un environnement sous vide est \u00e9troitement li\u00e9e \u00e0 l'\u00e9paisseur de la paroi. Contrairement \u00e0 la r\u00e9sistance \u00e0 la pression interne, les conditions de vide impliquent principalement l'effet de compression de la pression atmosph\u00e9rique externe (0,1 MPa) sur la paroi du tube, c'est-\u00e0-dire le probl\u00e8me de la stabilit\u00e9 \u00e0 la pression externe. Une analyse d\u00e9taill\u00e9e est pr\u00e9sent\u00e9e ci-dessous :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3b9593 elementor-widget elementor-widget-heading\" data-id=\"b3b9593\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. M\u00e9canismes de d\u00e9faillance des tubes en quartz sous vide<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21ecac4 elementor-widget elementor-widget-text-editor\" data-id=\"21ecac4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le quartz est un mat\u00e9riau fragile dont la r\u00e9sistance \u00e0 la compression est tr\u00e8s \u00e9lev\u00e9e (~1100 MPa). Cependant, dans des conditions de vide, les principaux modes de d\u00e9faillance sont les suivants :<\/p><ul class=\"wp-block-list\"><li><strong>Instabilit\u00e9 du flambage<\/strong>: Les parois du tube sont comprim\u00e9es vers l'int\u00e9rieur par la pression atmosph\u00e9rique, ce qui entra\u00eene l'effondrement de la structure (comme une paille \u00e9cras\u00e9e).<\/li><li><strong>Propagation des microfissures<\/strong>: Si la surface du quartz pr\u00e9sente des d\u00e9fauts, le vide peut provoquer l'expansion des fissures, ce qui r\u00e9duit la r\u00e9sistance.<\/li><\/ul><p><strong>Facteurs cl\u00e9s d'influence<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Rapport entre l'\u00e9paisseur de la paroi (t) et le diam\u00e8tre ext\u00e9rieur (D) (t\/D)<\/li><li>Rapport entre la longueur (L) et le diam\u00e8tre (rapport d'\u00e9lasticit\u00e9)<\/li><li>Uniformit\u00e9 du mat\u00e9riau (absence de bulles ou de microfissures)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cecb0f elementor-widget elementor-widget-heading\" data-id=\"6cecb0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. Calcul th\u00e9orique (pression critique de flambage)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7228fa4 elementor-widget elementor-widget-text-editor\" data-id=\"7228fa4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Pour les longs tubes cylindriques \u00e0 paroi mince, la pression critique de flambage (Pcr) peut \u00eatre estim\u00e9e \u00e0 l'aide de la formule de Bresse :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d30fa23 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"d30fa23\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"437\" height=\"149\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-10.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1030\" alt=\"formule 10\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-10.jpg 437w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-10-300x102.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-10-18x6.jpg 18w\" sizes=\"(max-width: 437px) 100vw, 437px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-88e74a7 elementor-widget elementor-widget-text-editor\" data-id=\"88e74a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li>E = Module d'\u00e9lasticit\u00e9 du quartz (72 GPa)<\/li><li>\u03bd = coefficient de Poisson (0,17)<\/li><li>t = Epaisseur de la paroi (mm)<\/li><li>D = Diam\u00e8tre ext\u00e9rieur (mm)<\/li><\/ul><p><strong>Formule simplifi\u00e9e (valable lorsque L\/D &gt; 5) :<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44eabaf elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"44eabaf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"364\" height=\"182\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-11.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1031\" alt=\"formule 11\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-11.jpg 364w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-11-300x150.jpg 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-11-18x9.jpg 18w\" sizes=\"(max-width: 364px) 100vw, 364px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3939242 elementor-widget elementor-widget-heading\" data-id=\"3939242\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Exemples de calcul<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e04664 elementor-widget elementor-widget-shortcode\" data-id=\"0e04664\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-15\" class=\"tablepress tablepress-id-15\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Diam\u00e8tre ext\u00e9rieur D (mm)<\/th><th class=\"column-2\">\u00c9paisseur de la paroi t (mm)<\/th><th class=\"column-3\">t\/D<\/th><th class=\"column-4\">Pression critique de flambage Pcr (MPa)<\/th><th class=\"column-5\">R\u00e9sistant au vide (0,1 MPa) ?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">10<\/td><td class=\"column-2\">1.0<\/td><td class=\"column-3\">0.1<\/td><td class=\"column-4\">0.086<\/td><td class=\"column-5\">s'effondre \u00e9ventuellement<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">10<\/td><td class=\"column-2\">2.0<\/td><td class=\"column-3\">0.2<\/td><td class=\"column-4\">0.691<\/td><td class=\"column-5\">\u2705 S\u00fbr<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">20<\/td><td class=\"column-2\">1.0<\/td><td class=\"column-3\">0.05<\/td><td class=\"column-4\">0.011<\/td><td class=\"column-5\">\u274c Extr\u00eamement instable<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">20<\/td><td class=\"column-2\">3.0<\/td><td class=\"column-3\">0.15<\/td><td class=\"column-4\">0.437<\/td><td class=\"column-5\">\u2705 S\u00fbr<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-15 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d8e875 elementor-widget elementor-widget-heading\" data-id=\"2d8e875\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Conclusion :<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-873d296 elementor-widget elementor-widget-text-editor\" data-id=\"873d296\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Quand\u00a0<strong>t\/D \u2265 0,1<\/strong>\u00a0(c'est-\u00e0-dire une \u00e9paisseur de paroi \u2265 10% du diam\u00e8tre ext\u00e9rieur), les tubes de quartz peuvent r\u00e9sister au vide standard (0,1 MPa).<br \/>Pour les tubes longs (L\/D &gt; 20), une \u00e9paisseur de paroi suppl\u00e9mentaire ou des structures de soutien (telles que des renforts internes) sont n\u00e9cessaires.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6267d68 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"6267d68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"844\" height=\"976\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-1.jpg\" class=\"attachment-large size-large wp-image-1034\" alt=\"Tube de quartz haute pression\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-1.jpg 844w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-1-259x300.jpg 259w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-1-768x888.jpg 768w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/High-pressure-quartz-tube-1-10x12.jpg 10w\" sizes=\"(max-width: 844px) 100vw, 844px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Tube de quartz haute pression<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-187b925 elementor-widget elementor-widget-heading\" data-id=\"187b925\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Recommandations d'application pratique<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39b6fd2 elementor-widget elementor-widget-text-editor\" data-id=\"39b6fd2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol class=\"wp-block-list\"><li><strong>S\u00e9lection de l'\u00e9paisseur de la paroi de s\u00e9curit\u00e9<\/strong><ul class=\"wp-block-list\"><li><strong>Tubes courts (L &lt; 200 mm) :<\/strong>\u00a0t\/D \u2265 0,1 (par exemple, diam\u00e8tre ext\u00e9rieur 10 mm \u2192 \u00e9paisseur de la paroi \u2265 1 mm).<\/li><li><strong>Tubes longs (L &gt; 500 mm) :<\/strong>\u00a0t\/D \u2265 0,15 (par exemple, diam\u00e8tre ext\u00e9rieur 10 mm \u2192 \u00e9paisseur de paroi \u2265 1,5 mm), ou utiliser des supports segment\u00e9s (tels que des brides).<\/li><\/ul><\/li><li><strong>Exigences particuli\u00e8res pour le vide pouss\u00e9 (&lt;10-\u00b3 Pa)<\/strong><ul class=\"wp-block-list\"><li>L'\u00e9paisseur de la paroi doit \u00eatre encore augment\u00e9e (t\/D \u2265 0,2) pour \u00e9viter les fuites ou la perm\u00e9ation des gaz.<\/li><li>\u00c9tanch\u00e9it\u00e9 des extr\u00e9mit\u00e9s : il est recommand\u00e9 d'utiliser des brides m\u00e9talliques avec des joints toriques plut\u00f4t que des adh\u00e9sifs, qui peuvent d\u00e9gager des gaz.<\/li><\/ul><\/li><li><strong>Votre sc\u00e9nario exp\u00e9rimental (tube de 1 m)<\/strong><ul class=\"wp-block-list\"><li>Si le diam\u00e8tre ext\u00e9rieur = 9,53 mm :<br \/>\u00c9paisseur minimale de la paroi de s\u00e9curit\u00e9 : t \u2265 0,15 \u00d7 9,53 \u2248 1,43 mm \u2192 recommandation \u2265 2 mm.<\/li><li>Pour l'ultravide : choisir une \u00e9paisseur de paroi \u2265 3 mm, ou utiliser un tube en quartz avec un rev\u00eatement en acier inoxydable.<\/li><\/ul><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f14103a elementor-widget elementor-widget-heading\" data-id=\"f14103a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Comparaison avec la r\u00e9sistance \u00e0 la pression interne<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ca4cc5 elementor-widget elementor-widget-shortcode\" data-id=\"7ca4cc5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-16\" class=\"tablepress tablepress-id-16\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Caract\u00e9ristiques<\/th><th class=\"column-2\">R\u00e9sistance \u00e0 la pression interne<\/th><th class=\"column-3\">R\u00e9sistance au vide (pression externe)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Mode de d\u00e9faillance<\/td><td class=\"column-2\">Rupture par traction (contrainte circulaire)<\/td><td class=\"column-3\">Effondrement par flambage (compression axiale)<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Formule cl\u00e9<\/td><td class=\"column-2\">F\u2081<\/td><td class=\"column-3\">F\u2082<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Effet de l'\u00e9paisseur de la paroi<\/td><td class=\"column-2\">Lin\u00e9aire proportionnelle (P \u221d t)<\/td><td class=\"column-3\">Relation cubique (Pcr \u221d t\u00b3)<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Votre demande<\/td><td class=\"column-2\">10 MPa \u2192 \u00e9paisseur de la paroi \u2265 3,5 mm<\/td><td class=\"column-3\">Vide \u2192 \u00e9paisseur de la paroi \u2265 1,5 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-16 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a78eb2 elementor-widget elementor-widget-text-editor\" data-id=\"4a78eb2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>R\u00e9f\u00e9rence de la formule :<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>F\u2081<\/strong>\u00a0(Pression interne) :<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc9c7e8 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"fc9c7e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"144\" height=\"71\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-12.jpg\" class=\"attachment-large size-large wp-image-1032\" alt=\"formule 12\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-12.jpg 144w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-12-18x9.jpg 18w\" sizes=\"(max-width: 144px) 100vw, 144px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37a012d elementor-widget elementor-widget-text-editor\" data-id=\"37a012d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li><strong>F\u2082<\/strong>\u00a0(R\u00e9sistance au vide<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef9dc18 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"ef9dc18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"257\" height=\"69\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-13.jpg\" class=\"attachment-large size-large wp-image-1033\" alt=\"formule 13\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-13.jpg 257w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/formula-13-18x5.jpg 18w\" sizes=\"(max-width: 257px) 100vw, 257px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-981c43c elementor-widget elementor-widget-heading\" data-id=\"981c43c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Recommandations globales<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3aef925 elementor-widget elementor-widget-text-editor\" data-id=\"3aef925\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li><strong>Donner la priorit\u00e9 aux exigences \u00e0 forte pression<\/strong>:<br \/>Votre exp\u00e9rience n\u00e9cessite une pression interne de 10 MPa \u2192 \u00e9paisseur de la paroi \u2265 3,5 mm (diam\u00e8tre ext\u00e9rieur \u2248 14-15 mm).<br \/>Cette \u00e9paisseur de paroi d\u00e9passe d\u00e9j\u00e0 les exigences de s\u00e9curit\u00e9 du vide (t\/D \u2248 0,25), de sorte qu'aucun renforcement suppl\u00e9mentaire n'est n\u00e9cessaire.<\/li><li><strong>Mesures anti-coincement pour les tubes longs<\/strong>:<br \/>Pour les tubes \u2265 1 m, utiliser des brides m\u00e9talliques aux deux extr\u00e9mit\u00e9s pour \u00e9viter la flexion de la section m\u00e9diane.<\/li><li><strong>Points cl\u00e9s de la communication technique<\/strong>:<br \/>D\u00e9finir clairement :\u00a0<em>\"A temp\u00e9rature ambiante, gaz non corrosif, diam\u00e8tre int\u00e9rieur 7,75 mm, \u00e9paisseur de paroi 3,5 mm, r\u00e9sistant \u00e0 une pression interne de 10 MPa + vide de 0,1 MPa\".<\/em><br \/>Si possible, obtenir les donn\u00e9es de l'essai de taux de fuite sous vide (par exemple, &lt;10-\u2079 Pa-m\u00b3\/s).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8074113 elementor-widget elementor-widget-heading\" data-id=\"8074113\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb01501 elementor-widget elementor-widget-text-editor\" data-id=\"cb01501\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li>La r\u00e9sistance au vide et l'\u00e9paisseur de la paroi ont une relation cubique. M\u00eame une faible augmentation de l'\u00e9paisseur de la paroi am\u00e9liore consid\u00e9rablement la stabilit\u00e9.<\/li><li>Notre conception (\u00e9paisseur de paroi de 3,5 mm) r\u00e9pond aux exigences de la haute pression et du vide, \u00e0 condition que le scellement final soit fiable.<\/li><li>Si d'autres d\u00e9tails techniques ne sont pas mentionn\u00e9s, ils doivent \u00eatre clarifi\u00e9s, car toute donn\u00e9e cl\u00e9 manquante affectera directement la conception du tube de quartz et les r\u00e9sultats de l'exp\u00e9rience.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60ed7ac elementor-widget elementor-widget-heading\" data-id=\"60ed7ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Relation entre le diam\u00e8tre du tube de quartz et la r\u00e9sistance \u00e0 la pression (partie 5 de 6)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53c6d23 elementor-widget elementor-widget-heading\" data-id=\"53c6d23\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Relation de base (formule de la th\u00e9orie de la paroi mince)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2749a18 elementor-widget elementor-widget-text-editor\" data-id=\"2749a18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La pression interne maximale admissible (Pmax) d'un tube de quartz est inversement proportionnelle \u00e0 son diam\u00e8tre int\u00e9rieur (D).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-629d71e elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"629d71e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"291\" height=\"143\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-14.jpg\" class=\"attachment-large size-large wp-image-1041\" alt=\"Formule 14\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-14.jpg 291w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Formula-14-18x9.jpg 18w\" sizes=\"(max-width: 291px) 100vw, 291px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e294f7d elementor-widget elementor-widget-text-editor\" data-id=\"e294f7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Formule :<\/strong><\/p><ul class=\"wp-block-list\"><li>Pmax = Pression interne maximale (MPa)<\/li><li>\u03c3 = R\u00e9sistance \u00e0 la traction du quartz (~50 MPa, diminue \u00e0 haute temp\u00e9rature)<\/li><li>t = Epaisseur de la paroi (mm)<\/li><li>D = Diam\u00e8tre int\u00e9rieur (mm)<\/li><\/ul><p><strong>Principale conclusion :<\/strong>\u00a0La r\u00e9sistance \u00e0 la pression est inversement proportionnelle au diam\u00e8tre int\u00e9rieur.<\/p><ul class=\"wp-block-list\"><li>Diam\u00e8tre int\u00e9rieur plus petit \u2192 r\u00e9sistance \u00e0 la pression plus \u00e9lev\u00e9e (\u00e0 \u00e9paisseur de paroi \u00e9gale).<\/li><li>Diam\u00e8tre int\u00e9rieur plus grand \u2192 r\u00e9duction significative de la r\u00e9sistance \u00e0 la pression.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d36cc3 elementor-widget elementor-widget-heading\" data-id=\"0d36cc3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Comparaison de la r\u00e9sistance \u00e0 la pression pour diff\u00e9rents diam\u00e8tres int\u00e9rieurs (\u00e9paisseur de paroi fixe = 2 mm)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7d620f elementor-widget elementor-widget-shortcode\" data-id=\"c7d620f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-17\" class=\"tablepress tablepress-id-17\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Diam\u00e8tre int\u00e9rieur D (mm)<\/th><th class=\"column-2\">Pression th\u00e9orique (MPa)<\/th><th class=\"column-3\">Pression de s\u00e9curit\u00e9 pratique (MPa)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">5<\/td><td class=\"column-2\">40<\/td><td class=\"column-3\">8-12<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">10<\/td><td class=\"column-2\">20<\/td><td class=\"column-3\">4-6<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">20<\/td><td class=\"column-2\">10<\/td><td class=\"column-3\">2-3<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">50<\/td><td class=\"column-2\">4<\/td><td class=\"column-3\">0.8-1.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-17 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4005fe8 elementor-widget elementor-widget-text-editor\" data-id=\"4005fe8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Note : Dans les applications r\u00e9elles, un facteur de s\u00e9curit\u00e9 de 3 \u00e0 5 est n\u00e9cessaire. Par cons\u00e9quent, la pression de service nominale est toujours inf\u00e9rieure \u00e0 la valeur th\u00e9orique.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a71c6c6 elementor-widget elementor-widget-heading\" data-id=\"a71c6c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Influence combin\u00e9e du diam\u00e8tre et de l'\u00e9paisseur de la paroi<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cc8bbe elementor-widget elementor-widget-text-editor\" data-id=\"7cc8bbe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li><strong>Tubes de petit diam\u00e8tre (D &lt; 10 mm) :<\/strong><ul class=\"wp-block-list\"><li>Avantage : R\u00e9sistance \u00e0 la pression naturellement \u00e9lev\u00e9e, adapt\u00e9e aux exp\u00e9riences \u00e0 haute pression (par exemple, micror\u00e9acteurs, syst\u00e8mes de fluides capillaires).<\/li><li>Exemple : ID 5 mm, \u00e9paisseur de paroi 2 mm \u2192 pression de travail 8-12 MPa.<\/li><\/ul><\/li><li><strong>Tubes de grand diam\u00e8tre (D &gt; 20 mm) :<\/strong><ul class=\"wp-block-list\"><li>Inconv\u00e9nient : Diminution rapide de la r\u00e9sistance \u00e0 la pression, n\u00e9cessitant une \u00e9paisseur de paroi beaucoup plus importante.<\/li><li>Exemple : ID 50 mm, \u00e9paisseur de paroi 5 mm \u2192 seulement ~2 MPa.<\/li><li>Pour r\u00e9sister \u00e0 10 MPa, une \u00e9paisseur de paroi \u226525 mm serait n\u00e9cessaire (peu pratique ; recommander plut\u00f4t des tubes en alumine ou en saphir).<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-104d04d elementor-widget elementor-widget-heading\" data-id=\"104d04d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Cas d'application : ID 7,75 mm, exigence 10 MPa<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdad705 elementor-widget elementor-widget-text-editor\" data-id=\"fdad705\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li><strong>\u00c9paisseur minimale th\u00e9orique de la paroi :<\/strong>\u00a00,775 mm.<\/li><li><strong>Exigence pratique avec facteur de s\u00e9curit\u00e9 :<\/strong>\u00a0\u22653 mm.<\/li><li><strong>Diam\u00e8tre ext\u00e9rieur :<\/strong>\u00a07,75 mm + 2 \u00d7 3 mm = 13,75 mm.<\/li><\/ul><p><strong>Conclusion :<\/strong><\/p><ul class=\"wp-block-list\"><li>Avec un diam\u00e8tre int\u00e9rieur de 7,75 mm et une \u00e9paisseur de paroi de 3 mm, il est possible d'atteindre une pression de 10 MPa.<\/li><li>Si le diam\u00e8tre int\u00e9rieur passe \u00e0 15 mm avec la m\u00eame \u00e9paisseur de paroi, la r\u00e9sistance \u00e0 la pression chute \u00e0 ~5 MPa.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-381c146 elementor-widget elementor-widget-heading\" data-id=\"381c146\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Recommandations techniques pour le choix du diam\u00e8tre<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c95221 elementor-widget elementor-widget-text-editor\" data-id=\"8c95221\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol class=\"wp-block-list\"><li><strong>Applications \u00e0 haute pression :<\/strong><ul class=\"wp-block-list\"><li>Utiliser de petits diam\u00e8tres int\u00e9rieurs (5-10 mm) pour minimiser les exigences en mati\u00e8re d'\u00e9paisseur de paroi.<\/li><\/ul><\/li><li><strong>Applications \u00e0 grand d\u00e9bit :<\/strong><ul class=\"wp-block-list\"><li>Si de grands diam\u00e8tres (&gt;20 mm) sont n\u00e9cessaires, il convient d'opter pour des tubes en alumine ou en saphir.<\/li><\/ul><\/li><li><strong>Applications sous vide :<\/strong><ul class=\"wp-block-list\"><li>Les grands diam\u00e8tres sont plus sujets au flambage et n\u00e9cessitent une \u00e9paisseur de paroi plus importante ou un support externe.<\/li><\/ul><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f08c525 elementor-widget elementor-widget-heading\" data-id=\"f08c525\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">6. Comparaisons de cas extr\u00eames<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-692e6ba elementor-widget elementor-widget-shortcode\" data-id=\"692e6ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-18\" class=\"tablepress tablepress-id-18\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Diam\u00e8tre int\u00e9rieur D<\/th><th class=\"column-2\">\u00c9paisseur de la paroi t<\/th><th class=\"column-3\">Pression th\u00e9orique<\/th><th class=\"column-4\">Limitation pratique<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">1 mm<\/td><td class=\"column-2\">1 mm<\/td><td class=\"column-3\">100 MPa<\/td><td class=\"column-4\">La microfluidique est possible, mais l'usinage est difficile<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">10 mm<\/td><td class=\"column-2\">1 mm<\/td><td class=\"column-3\">10 MPa<\/td><td class=\"column-4\">Limite de s\u00e9curit\u00e9 seulement 2-3 MPa<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">100 mm<\/td><td class=\"column-2\">10 mm<\/td><td class=\"column-3\">1 MPa<\/td><td class=\"column-4\">Uniquement pour une utilisation \u00e0 basse pression\/statique<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-18 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-858a7b8 elementor-widget elementor-widget-heading\" data-id=\"858a7b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">7. Conclusion finale<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ab31a9 elementor-widget elementor-widget-text-editor\" data-id=\"1ab31a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul class=\"wp-block-list\"><li>Le diam\u00e8tre est la variable cl\u00e9 : en divisant par deux le diam\u00e8tre int\u00e9rieur, on double la r\u00e9sistance \u00e0 la pression (\u00e0 \u00e9paisseur de paroi constante).<\/li><li>Pour un diam\u00e8tre int\u00e9rieur de 7,75 mm, une \u00e9paisseur de paroi de 3 mm est un \u00e9quilibre pratique qui garantit un fonctionnement s\u00fbr \u00e0 10 MPa.<\/li><li>Les grands diam\u00e8tres (&gt;20 mm) ne permettent pas d'obtenir des pressions \u00e9lev\u00e9es, il faut donc envisager des tubes en alumine ou en saphir.<\/li><li>Pour l'optimiser, il faut tenir compte de l'\u00e9paisseur de la paroi, de la puret\u00e9 du mat\u00e9riau et des m\u00e9thodes de scellement de l'extr\u00e9mit\u00e9.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c8b5d97 elementor-widget elementor-widget-heading\" data-id=\"c8b5d97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Solutions d'\u00e9tanch\u00e9it\u00e9 pour tubes en quartz \u00e0 haute s\u00e9curit\u00e9 (Partie 6 de 6)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0864481 elementor-widget elementor-widget-text-editor\" data-id=\"0864481\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Lorsque des tubes en quartz doivent fonctionner dans des environnements \u00e0 haute pression de 10 MPa ou plus, l'\u00e9tanch\u00e9it\u00e9 de l'extr\u00e9mit\u00e9 devient un d\u00e9fi technique critique. Le quartz \u00e9tant un mat\u00e9riau fragile, les joints traditionnels en adh\u00e9sif ou en caoutchouc sont susceptibles de se rompre. Il faut donc utiliser des structures d'\u00e9tanch\u00e9it\u00e9 composites m\u00e9tal-quartz. Voici cinq solutions techniques pour l'\u00e9tanch\u00e9it\u00e9 \u00e0 haute pression.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57a425c elementor-widget elementor-widget-heading\" data-id=\"57a425c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Solution 1 : Bride m\u00e9tallique + joint de compression conique<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84988d0 elementor-widget elementor-widget-text-editor\" data-id=\"84988d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Caract\u00e9ristiques structurelles :<\/strong><\/p><ul class=\"wp-block-list\"><li>Les extr\u00e9mit\u00e9s des tubes en quartz sont usin\u00e9es en une surface conique de 20\u00b0.<\/li><li>Brides en acier inoxydable avec c\u00f4nes internes assortis.<\/li><li>Pression axiale appliqu\u00e9e \u00e0 l'aide de boulons de pr\u00e9-serrage hydrauliques.<\/li><\/ul><p><strong>Param\u00e8tres cl\u00e9s :<\/strong><\/p><ul class=\"wp-block-list\"><li>Pression d'\u00e9tanch\u00e9it\u00e9 : \u226430 MPa<\/li><li>Temp\u00e9rature d'application : -200 \u00b0C \u00e0 500 \u00b0C<\/li><li>Taux de fuite : &lt;10-\u2079 Pa-m\u00b3\/s<\/li><li>Tubes de quartz recuits requis (pour \u00e9viter les fissures dues \u00e0 la concentration des contraintes).<\/li><\/ul><p><strong>Avantages :<\/strong>\u00a0D\u00e9tachable ; convient pour une ouverture et une fermeture fr\u00e9quentes pendant les exp\u00e9riences.<br \/><strong>Inconv\u00e9nients :<\/strong>\u00a0N\u00e9cessite un usinage de pr\u00e9cision (tol\u00e9rance de l'angle du c\u00f4ne \u00b10,5\u00b0).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44809ba elementor-widget elementor-widget-heading\" data-id=\"44809ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Solution 2 : Soudage du verre \u00e0 haute temp\u00e9rature<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-654577b elementor-widget elementor-widget-text-editor\" data-id=\"654577b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Points forts du processus :<\/strong><\/p><ul class=\"wp-block-list\"><li>Remplir l'espace entre le tube de quartz et la bride m\u00e9tallique avec de la poudre de verre borosilicat\u00e9.<\/li><li>Fondus et soud\u00e9s dans un environnement d'azote \u00e0 850 \u00b0C.<\/li><li>Refroidissement lent et recuit pour \u00e9liminer les tensions.<\/li><\/ul><p><strong>Indicateurs de performance :<\/strong><\/p><ul class=\"wp-block-list\"><li>R\u00e9sistance \u00e0 la pression : 15 MPa (statique).<\/li><li>R\u00e9sistance \u00e0 la temp\u00e9rature : \u2264450 \u00b0C (le verre se ramollit au-del\u00e0).<\/li><li>Il faut utiliser des brides Kovar pour faire correspondre les coefficients de dilatation thermique.<\/li><\/ul><p><strong>Application :<\/strong>\u00a0Convient pour le scellement permanent, comme dans l'emballage des capteurs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b371b66 elementor-widget elementor-widget-heading\" data-id=\"b371b66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Solution 3 : Scellement par pression hydraulique \u00e0 froid<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0319fee elementor-widget elementor-widget-text-editor\" data-id=\"0319fee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Processus innovant :<\/strong><\/p><ul class=\"wp-block-list\"><li>Utiliser des moules \u00e0 tr\u00e8s haute pression (1-3 GPa) \u00e0 temp\u00e9rature ambiante.<\/li><li>R\u00e9aliser un embo\u00eetement par d\u00e9formation plastique entre le quartz et le m\u00e9tal.<\/li><li>Aucune soudure interm\u00e9diaire ou adh\u00e9sif n'est n\u00e9cessaire.<\/li><\/ul><p><strong>Param\u00e8tres de rupture :<\/strong><\/p><ul class=\"wp-block-list\"><li>R\u00e9sistance \u00e0 la pression : jusqu'\u00e0 100 MPa (record mondial).<\/li><li>Plage de temp\u00e9rature : De -273 \u00b0C \u00e0 1000 \u00b0C.<\/li><li>Limit\u00e9 aux tubes courts d'une \u00e9paisseur de paroi \u22655 mm.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-169a9dd elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"169a9dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"968\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Quartz-Tube-Flange-Sealing-System-for-CVD-Furnaces-768x968.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1054\" alt=\"Syst\u00e8me d&#039;\u00e9tanch\u00e9it\u00e9 des brides de tubes en quartz pour les fours CVD\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Quartz-Tube-Flange-Sealing-System-for-CVD-Furnaces-768x968.jpg 768w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Quartz-Tube-Flange-Sealing-System-for-CVD-Furnaces-238x300.jpg 238w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Quartz-Tube-Flange-Sealing-System-for-CVD-Furnaces-812x1024.jpg 812w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Quartz-Tube-Flange-Sealing-System-for-CVD-Furnaces-10x12.jpg 10w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/08\/Quartz-Tube-Flange-Sealing-System-for-CVD-Furnaces.jpg 872w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Syst\u00e8me d'\u00e9tanch\u00e9it\u00e9 des brides de tubes en quartz pour les fours CVD<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50bed47 elementor-widget elementor-widget-heading\" data-id=\"50bed47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Solution 4 : Joint torique d'\u00e9tanch\u00e9it\u00e9 dynamique<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d514ae0 elementor-widget elementor-widget-text-editor\" data-id=\"d514ae0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Conception sp\u00e9ciale :<\/strong><\/p><ul class=\"wp-block-list\"><li>Des joints toriques en FFKM (\u00e9lastom\u00e8re perfluor\u00e9) sont utilis\u00e9s.<\/li><li>Structure de pressurisation \u00e0 deux \u00e9tages :<ul class=\"wp-block-list\"><li>Joint primaire : Pr\u00e9-serrage hydraulique 5 MPa.<\/li><li>Joint secondaire : soufflet m\u00e9tallique compensation.<\/li><\/ul><\/li><\/ul><p><strong>Sc\u00e9narios d'application :<\/strong><\/p><ul class=\"wp-block-list\"><li>Syst\u00e8mes n\u00e9cessitant un d\u00e9montage et un remontage fr\u00e9quents.<\/li><li>Pression maximale : 12 MPa (pic \u00e0 court terme de 15 MPa).<\/li><\/ul><p><strong>Remarque :<\/strong>\u00a0Co\u00fbt d'assemblage \u00e9lev\u00e9 et n\u00e9cessit\u00e9 de techniciens qualifi\u00e9s.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3886858 elementor-widget elementor-widget-heading\" data-id=\"3886858\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Solution 5 : frittage m\u00e9tallis\u00e9 int\u00e9gr\u00e9<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-971d627 elementor-widget elementor-widget-text-editor\" data-id=\"971d627\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Solution de qualit\u00e9 militaire :<\/strong><\/p><ul class=\"wp-block-list\"><li>Rev\u00eatement multicouche par pulv\u00e9risation sous vide de Ti-Pt-Au sur les extr\u00e9mit\u00e9s de tubes de quartz.<\/li><li>Frittage \u00e0 haute temp\u00e9rature pour former une couche de transition m\u00e9tallis\u00e9e.<\/li><li>Soudage au laser de brides en acier inoxydable.<\/li><\/ul><p><strong>Limites de performance :<\/strong><\/p><ul class=\"wp-block-list\"><li>Pression d'\u00e9clatement : jusqu'\u00e0 50 MPa.<\/li><li>R\u00e9sistance aux chocs thermiques : supporte sans d\u00e9faillance des cycles de 1000 \u00b0C \u2192 azote liquide.<\/li><li>Applicable uniquement aux tubes \u00e0 parois \u00e9paisses dont le diam\u00e8tre int\u00e9rieur est inf\u00e9rieur \u00e0 20 mm.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09614c3 elementor-widget elementor-widget-heading\" data-id=\"09614c3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Tableau de comparaison des solutions<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47f4e05 elementor-widget elementor-widget-shortcode\" data-id=\"47f4e05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-19\" class=\"tablepress tablepress-id-19\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Solution<\/th><th class=\"column-2\">R\u00e9sistance \u00e0 la pression (MPa)<\/th><th class=\"column-3\">Temp\u00e9rature (\u00b0C)<\/th><th class=\"column-4\">D\u00e9tachable<\/th><th class=\"column-5\">Diam\u00e8tre du tube applicable<\/th><th class=\"column-6\">Co\u00fbt<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Bride m\u00e9tallique<\/td><td class=\"column-2\">30<\/td><td class=\"column-3\">500<\/td><td class=\"column-4\">\u2713<\/td><td class=\"column-5\">5-100 mm<\/td><td class=\"column-6\">Mod\u00e9r\u00e9<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Soudage du verre<\/td><td class=\"column-2\">15<\/td><td class=\"column-3\">450<\/td><td class=\"column-4\">\u2717<\/td><td class=\"column-5\">3-50 mm<\/td><td class=\"column-6\">Faible<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Presse \u00e0 froid<\/td><td class=\"column-2\">100<\/td><td class=\"column-3\">1000<\/td><td class=\"column-4\">\u2717<\/td><td class=\"column-5\">3-20 mm<\/td><td class=\"column-6\">Tr\u00e8s \u00e9lev\u00e9<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Joint torique<\/td><td class=\"column-2\">12<\/td><td class=\"column-3\">300<\/td><td class=\"column-4\">\u2713<\/td><td class=\"column-5\">10-200 mm<\/td><td class=\"column-6\">Haut<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">M\u00e9tallisation<\/td><td class=\"column-2\">50<\/td><td class=\"column-3\">1000<\/td><td class=\"column-4\">\u2717<\/td><td class=\"column-5\">3-20 mm<\/td><td class=\"column-6\">Tr\u00e8s \u00e9lev\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-19 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48eab5d elementor-widget elementor-widget-heading\" data-id=\"48eab5d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Solution recommand\u00e9e pour votre application<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64a57db elementor-widget elementor-widget-text-editor\" data-id=\"64a57db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Conditions de fonctionnement :<\/strong><br \/>ID = 7,75 mm, Pression = 10 MPa, Fluide = CO\u2082, Temp\u00e9rature = 500 \u00b0C<\/p><ul class=\"wp-block-list\"><li><strong>Solution pr\u00e9f\u00e9r\u00e9e :<\/strong>\u00a0Solution 1 (Bride m\u00e9tallique + joint conique)<br \/>Mat\u00e9riaux recommand\u00e9s : Bride en Inconel 718 + joint en cuivre rouge.<br \/>Force de pr\u00e9-serrage : \u22658 tonnes (boulons M6 \u00d7 8 pi\u00e8ces).<\/li><li><strong>Alternative :<\/strong>\u00a0Solution 5 (si le budget le permet et si le d\u00e9montage n'est pas n\u00e9cessaire).<\/li><li><strong>Interdit :<\/strong>\u00a0Adh\u00e9sifs \u00e9poxy ou silicone ordinaires (ils c\u00e8dent au-del\u00e0 de 5 MPa).<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8d145d elementor-widget elementor-widget-heading\" data-id=\"f8d145d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Consid\u00e9rations relatives \u00e0 la mise en \u0153uvre<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a16407 elementor-widget elementor-widget-text-editor\" data-id=\"5a16407\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4 class=\"wp-block-heading\">1. Contr\u00f4le de la concentration des contraintes<\/h4><ul class=\"wp-block-list\"><li>Les surfaces de contact des brides doivent \u00eatre usin\u00e9es avec des transitions arrondies de R0,3 mm.<\/li><li>Les extr\u00e9mit\u00e9s des tubes en quartz doivent \u00eatre polies \u00e0 la flamme.<br \/><em>(Ne s'applique pas aux tubes \u00e0 parois \u00e9paisses ; le polissage peut r\u00e9duire la r\u00e9sistance \u00e0 la pression).<\/em><\/li><\/ul><h4 class=\"wp-block-heading\">2. Normes de d\u00e9tection des fuites<\/h4><ul class=\"wp-block-list\"><li>D\u00e9tection des fuites par spectrom\u00e9trie de masse de l'h\u00e9lium \u22641\u00d710-\u2078 mbar-L\/s.<\/li><li>Essai de maintien de la pression : maintenir 15 MPa pendant 1 heure, chute de pression &lt;1%.<\/li><\/ul><h4 class=\"wp-block-heading\">3. Pr\u00e9cautions de s\u00e9curit\u00e9<\/h4><ul class=\"wp-block-list\"><li>Installer des protections antid\u00e9flagrantes (recommand\u00e9es en polycarbonate de 6 mm).<\/li><li>Des capteurs de pression en temps r\u00e9el et des soupapes de d\u00e9charge automatiques sont n\u00e9cessaires.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-281cb20 elementor-widget elementor-widget-text-editor\" data-id=\"281cb20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Pour des solutions d'\u00e9tanch\u00e9it\u00e9 sur mesure dans des conditions exp\u00e9rimentales sp\u00e9cifiques, des dessins CAO ou des sp\u00e9cifications d\u00e9taill\u00e9es du processus (temp\u00e9rature, pression interne\/externe, gaz d'essai, etc.) sont n\u00e9cessaires pour une discussion plus approfondie.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-07153c9 e-con-full e-flex e-con e-child\" data-id=\"07153c9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-654a07d elementor-widget elementor-widget-heading\" data-id=\"654a07d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Demande de solution pour le verre de quartz<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2eab66 elementor-widget elementor-widget-form\" data-id=\"f2eab66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cb7077 elementor-widget elementor-widget-heading\" data-id=\"6cb7077\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Produit connexe :<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0882ffc elementor-widget elementor-widget-image\" data-id=\"0882ffc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview-1024x1024.webp\" class=\"attachment-large size-large wp-image-1358\" alt=\"tube quartz haute pression-24mm-8mm-sideview\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview-1024x1024.webp 1024w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview-300x300.webp 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview-150x150.webp 150w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview-768x768.webp 768w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview-12x12.webp 12w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/high-pressure-quartz-tube-24mm-8mm-sideview.webp 1279w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c3477d elementor-widget elementor-widget-heading\" data-id=\"8c3477d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Tube en quartz haute pression (10 MPa)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>High-Pressure Quartz Tube Solution This article walks through a real case where a high-pressure quartz tube was required for experimental [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"High-Pressure Quartz Tube Solution","_seopress_titles_desc":"Quartz Tube Transmittance Solutions covering wall thickness, surface finish, material factors, and optical performance in UV, visible, and infrared 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Tube Transmittance Solutions","site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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