{"id":6152,"date":"2025-07-17T14:17:36","date_gmt":"2025-07-17T06:17:36","guid":{"rendered":"https:\/\/globalquartztube.com\/?p=6152"},"modified":"2025-08-12T14:56:14","modified_gmt":"2025-08-12T06:56:14","slug":"high-pressure-quartz-tube-sealing-guide","status":"publish","type":"post","link":"https:\/\/globalquartztube.com\/de\/high-pressure-quartz-tube-sealing-guide\/","title":{"rendered":"Anleitung zum Abdichten von Hochdruck-Quarzglasrohren"},"content":{"rendered":"<p><strong>Technischer Leitfaden f\u00fcr die Abdichtung von Quarzglasrohren unter hohen Druckbedingungen (\u226510MPa)<\/strong><br><strong>Auswahl-, Installations- und \u00dcberpr\u00fcfungsverfahren f\u00fcr Quarz-, Aluminiumoxid- und Saphirrohre<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Dichtungstyp-Vergleichstabelle<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Siegel Typ<\/th><th>Maximaler Druck<\/th><th>Temperaturbereich<\/th><th>Wiederverwendbar<\/th><th>Bereich der Rohrdurchmesser<\/th><th>Empfohlener Anwendungsfall<\/th><\/tr><\/thead><tbody><tr><td>Metallflansch + konische Dichtung<\/td><td>\u226430 MPa<\/td><td>-200 ~ 500 \u00b0C<\/td><td>\u2713<\/td><td>5-100 mm<\/td><td>Hochdruckreaktoren, die h\u00e4ufigen Zugang erfordern<\/td><\/tr><tr><td>Glasfusionssiegel<\/td><td>\u226415 MPa<\/td><td>\u2264450 \u00b0C<\/td><td>\u2717<\/td><td>3-50 mm<\/td><td>Permanente Sensorkapselung<\/td><\/tr><tr><td>Hydraulische Kaltverdichtung<\/td><td>\u2264100 MPa<\/td><td>-273 ~ 1000 \u00b0C<\/td><td>\u2717<\/td><td>3-20 mm (dicke Wand)<\/td><td>Anwendungen unter extremem Druck\/kryogenen Bedingungen<\/td><\/tr><tr><td>Metallisiertes Hartl\u00f6ten<\/td><td>\u226450 MPa<\/td><td>\u22641000 \u00b0C<\/td><td>\u2717<\/td><td>3-20 mm<\/td><td>Zuverl\u00e4ssigkeit f\u00fcr Luft- und Raumfahrt und Verteidigung<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Metallflansch mit konischer Dichtung (empfohlene Methode)<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. Erforderliche Komponenten<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Werkstoff Flansch<\/strong>: Inconel 718 (korrosionsbest\u00e4ndige Nickellegierung)<\/li>\n\n\n\n<li><strong>Dichtung Dichtung<\/strong>: Gegl\u00fchtes Kupfer (1 mm dick, H\u00e4rte HV50)<\/li>\n\n\n\n<li><strong>Konischer Winkel<\/strong>20\u00b0 \u00b1 0,5\u00b0 (muss mit dem pr\u00e4zisionsgeschliffenen Konus des Rohrs \u00fcbereinstimmen)<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. Einbauverfahren<\/strong><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u2460 Vorbereitung<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Flammpolieren der Quarzrohrenden zur Beseitigung von Mikrorissen<\/li>\n\n\n\n<li>Hochglanzpolierte Flanschkonusfl\u00e4che (Ra \u2264 0,8 \u03bcm)<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u2461 Montage<\/strong><\/h5>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Setzen Sie die Kupferdichtung auf den Flanschkonus<\/li>\n\n\n\n<li>Hochtemperatur-Vakuumfett (z. B. Apiezon N) auf den Rohrkonus auftragen<\/li>\n\n\n\n<li>Ziehen Sie die Schrauben schrittweise mit einem hydraulischen Drehmomentschl\u00fcssel an.<\/li>\n<\/ol>\n\n\n\n<p><strong>Drehmomenttabelle f\u00fcr Schrauben (f\u00fcr M6-Schrauben):<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>B\u00fchne<\/th><th>Drehmoment (N-m)<\/th><th>Verweilzeit<\/th><\/tr><\/thead><tbody><tr><td>Vorspannung<\/td><td>10<\/td><td>5 min<\/td><\/tr><tr><td>Mitte<\/td><td>20<\/td><td>10 min<\/td><\/tr><tr><td>Finale<\/td><td>30<\/td><td>30 min<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. Kriterien f\u00fcr die Dichtheitspr\u00fcfung<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Helium-Leckrate<\/strong>: \u2264 1\u00d710-\u2078 mbar-L\/s<\/li>\n\n\n\n<li><strong>Druckhaltetest<\/strong>: 15 MPa f\u00fcr 1 Stunde, Druckabfall &lt;1%<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Sicherheitsvorkehrungen<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. Explosionsschutz<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>6-mm-Polycarbonat-Strahlungsschutzschild um das Rohr (optional mit IR-Kamerafenster)<\/li>\n\n\n\n<li>Mechanisches Druckbegrenzungsventil einbauen (Sollwert = 12 MPa)<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. Operative Leitlinien<\/strong><\/h4>\n\n\n\n<p><strong>Nicht:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2717 Schnelle Druckbeaufschlagung (Druckrampe \u2264 1 MPa\/min verwenden)<\/li>\n\n\n\n<li>\u2717 \u00dcberdruck bei Umgebungstemperatur (vor der Druckbeaufschlagung auf \u2265 100 \u00b0C vorheizen)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Fallstudien zum Scheitern<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Fall 1: Flanschdichtungsleck (POSTECH-Fall)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ausgabe<\/strong>: Helium-Leckrate bei 8 MPa stark angestiegen<\/li>\n\n\n\n<li><strong>Grundlegende Ursache<\/strong>: Die Dichtung wurde nicht gegl\u00fcht; die hohe H\u00e4rte verhinderte eine ordnungsgem\u00e4\u00dfe Verformung<\/li>\n\n\n\n<li><strong>L\u00f6sung<\/strong>: Umstellung auf HV50 Weichkupfer; Leckage um das 100-fache reduziert<\/li>\n<\/ul>\n\n\n\n<p><strong>Fall 2: Rohrbruch (NIMS Japan Lab)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ausgabe<\/strong>: L\u00e4ngsrissbildung bei 12 MPa<\/li>\n\n\n\n<li><strong>Grundlegende Ursache<\/strong>: Unterirdischer Fehler beim Laserschneiden blieb unentdeckt<\/li>\n\n\n\n<li><strong>Verbesserung<\/strong>: Der Lieferant muss nun folgende Angaben machen <strong>Bericht \u00fcber die Pr\u00fcfung mit fluoreszierendem Eindringmittel<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. Technische Unterst\u00fctzung<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Quarzrohr-Lieferant | Anpassbare Rohre &amp; Heizungen | GlobalQT<\/strong><br>F\u00fcr weitere Beratung zu spezifischen Testparametern (z. B. CO\u2082-Phase, Rampenrate usw.) wenden Sie sich bitte an <a href=\"https:\/\/globalquartztube.com\/de\/contact\/\">kontaktiere uns<\/a>.<\/p>\n\n\n\n<p>Dieses Dokument sollte vom Experimentator auf der Grundlage spezifischer Versuchsparameter (z. B. CO\u2082-Phasenzustand, Heizrate usw.) \u00fcberarbeitet werden.<\/p>","protected":false},"excerpt":{"rendered":"<p>Technical Guide for Sealing Quartz Tubes in High-Pressure Conditions (\u226510MPa)Selection, Installation &amp; Verification Procedures for Quartz, Alumina, and Sapphire Tubes 1. Seal Type Comparison Table Seal Type Max Pressure Temp Range Reusable Tube Diameter Range Recommended Use Case Metal Flange + Conical Seal \u226430\u202fMPa -200\u202f~\u202f500\u202f\u00b0C \u2713 5\u2013100\u202fmm High-pressure reactors requiring frequent access Glass Fusion Seal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6158,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"High-Pressure Quartz Tube Sealing Guide","_seopress_titles_desc":"Technical guide for sealing quartz tubes under \u226510MPa pressure. Includes method selection, installation steps, leak testing, and safety measures for high-pressure use.","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-breadcrumbs-content":"","ast-featured-img":"","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":"set","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"ppma_author":[21],"class_list":["post-6152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","author-nola"],"uagb_featured_image_src":{"full":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide.jpg",955,945,false],"thumbnail":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide-150x150.jpg",150,150,true],"medium":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide-300x297.jpg",300,297,true],"medium_large":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide-768x760.jpg",768,760,true],"large":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide.jpg",955,945,false],"1536x1536":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide.jpg",955,945,false],"2048x2048":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide.jpg",955,945,false],"trp-custom-language-flag":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/07\/High-Pressure-Quartz-Tube-Sealing-Guide-12x12.jpg",12,12,true]},"uagb_author_info":{"display_name":"Nola Zhang","author_link":"https:\/\/globalquartztube.com\/de\/author\/nola\/"},"uagb_comment_info":19,"uagb_excerpt":"Technical Guide for Sealing Quartz Tubes in High-Pressure Conditions (\u226510MPa)Selection, Installation &amp; Verification Procedures for Quartz, Alumina, and Sapphire Tubes 1. Seal Type Comparison Table Seal Type Max Pressure Temp Range Reusable Tube Diameter Range Recommended Use Case Metal Flange + Conical Seal \u226430\u202fMPa -200\u202f~\u202f500\u202f\u00b0C \u2713 5\u2013100\u202fmm High-pressure reactors requiring frequent access Glass Fusion Seal&hellip;","authors":[{"term_id":21,"user_id":1,"is_guest":0,"slug":"nola","display_name":"Nola Zhang","avatar_url":{"url":"https:\/\/globalquartztube.com\/wp-content\/uploads\/2024\/06\/Casper-Peng.webp","url2x":"https:\/\/globalquartztube.com\/wp-content\/uploads\/2024\/06\/Casper-Peng.webp"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":""}],"_links":{"self":[{"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/posts\/6152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/comments?post=6152"}],"version-history":[{"count":5,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/posts\/6152\/revisions"}],"predecessor-version":[{"id":6175,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/posts\/6152\/revisions\/6175"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/media\/6158"}],"wp:attachment":[{"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/media?parent=6152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/categories?post=6152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/tags?post=6152"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/globalquartztube.com\/de\/wp-json\/wp\/v2\/ppma_author?post=6152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}