{"id":1921,"date":"2025-08-15T16:12:45","date_gmt":"2025-08-15T08:12:45","guid":{"rendered":"https:\/\/yexintech.com\/?p=1921"},"modified":"2025-09-25T21:51:26","modified_gmt":"2025-09-25T13:51:26","slug":"high-temperature-muffle-furnace","status":"publish","type":"post","link":"https:\/\/yexintech.com\/ja\/high-temperature-muffle-furnace.html","title":{"rendered":"high temperature muffle furnace"},"content":{"rendered":"<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined bom50 top50\" id=\"\" style=\"background-color:#ffffff;padding-top:104px;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<section class=\"wp-block-themepark-block-themepark-imgtext thempark-block themepark_imgtext moveupd  undefined\" style=\"\"><div class=\"themepark_imgtext_img\" style=\"width:39%;border-radius:18px;\" data-swiper-parallax=\"-1800\"><img class=\"lazyload  swiper-lazy swiper-move-lazy\" style=\"\" data-src=\"https:\/\/yexintech.com\/wp-content\/uploads\/2025\/09\/box-furnace-2.jpg\" alt=\"box furnace\"\/><\/div><div class=\"themepark_imgtext_text\" style=\"width:58%;padding-left:89px;\" data-swiper-parallax=\"-1600\">\n<div class=\"wp-block-column\">\n<div class=\"wp-block-themepark-block-themepark-xian theme_fang_out  top15\" style=\"text-align:left;padding-top:64px;\"><div class=\"fangbox\" style=\"width:undefinedpx;\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:16px;line-height:33px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<h1 class=\"wp-block-heading has-large-font-size\"><strong>High temperature muffle furnace<\/strong><\/h1>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Scope of application<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>This equipment is dedicated to the sintering of ultra-high temperature ceramics (such as silicon carbide and silicon nitride structural ceramics), heat treatment of refractory metals, and high temperature curing of CMC ceramic matrix composites for aerospace. In the field of scientific research, it supports simulation tests of nuclear fuel cladding materials and spacecraft thermal protection systems through precise vacuum or protective atmosphere control.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out\" style=\"text-align:undefined;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#2ba8db;color:#000;font-size:16px;border-radius:20px;padding:14px 43px;\"><i class=\"fas fa-phone\"><\/i><span>TEL+8618836556085<\/span><a class=\"hovers  fas fa-phone\" data-title=\"TEL+8618836556085\" style=\"color:#ffffff;background-color:#2ba8db;padding:14px 43px;border-radius:20px;\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"themepark_imgtext_ba\" style=\"opacity:0.95;\"><\/div><\/section>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-xian theme_fang_out  top15\" style=\"text-align:left;padding-top:75px;\"><div class=\"fangbox\" style=\"width:undefinedpx;\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:16px;line-height:20px;color:#ffffff;padding:10px 1px;\">\n<div class=\"wp-block-column\">\n <div class=\"block_breadcrumbs\"><div class=\"breadcrumbs\"><nav> <a itemprop=\"breadcrumb\" href=\"https:\/\/yexintech.com\/ja\">Home<\/a> \/ <\/nav><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"shizhezhao\" style=\"opacity:0.56;background-color:#146ba2;\"><\/div><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-attachment:fixed;\" data-background=\"http:\/\/henanyexin.com\/wp-content\/uploads\/2024\/12\/pro-1.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-attachment:fixed;\" data-background=\"http:\/\/henanyexin.com\/wp-content\/uploads\/2024\/12\/pro-1.jpg\"><\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"background-color:#ffffff;padding-top:39px;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"max-width:1200px;\">\n<div class=\"wp-block-column block_layout_in\">\n<h1 class=\"wp-block-heading has-text-align-center has-medium-font-size\"><strong>High temperature muffle furnace<\/strong><\/h1>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:16px;line-height:30px;padding:10px 0px;\">\n<div class=\"wp-block-column\">\n<p>At temperatures <strong>\u22651,600 \u00b0C<\/strong>, materials behave differently: diffusion rates rise, ceramics sinter, and some contaminants vaporize. High-temperature muffle furnaces enable advanced processing but require stricter SOPs, different consumables, and more careful thermal management than standard lab ovens.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Crucibles &amp; Fixtures<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Alumina crucibles (99.7% Al\u2082O\u2083)<\/strong> for most oxides at high temp.<\/li>\n\n\n\n<li><strong>Zirconia crucibles<\/strong> for extreme corrosion resistance (costly).<\/li>\n\n\n\n<li><strong>Graphite fixtures<\/strong> only with inert atmospheres (not in air).<\/li>\n\n\n\n<li>Use <strong>lidded crucibles<\/strong> or sacrificial alumina plates to reduce contamination and minimize direct vapour attack on elements.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Example SOP \u2014 Sintering Ceramic Powders at 1,700 \u00b0C<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Preparation:<\/strong> Pre-dry powders at 105 \u00b0C if moisture is present; load into pre-weighed alumina crucibles; use clean tools and gloves.<\/li>\n\n\n\n<li><strong>Program:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ramp 5\u201310 \u00b0C\/min to 600 \u00b0C \u2192 hold 30\u201360 min (organic burn-off).<\/li>\n\n\n\n<li>Ramp 5\u201310 \u00b0C\/min to 1,700 \u00b0C \u2192 hold 1\u20134 h (depending on material).<\/li>\n\n\n\n<li>Cool at 5\u201310 \u00b0C\/min to 500 \u00b0C, then 10\u201320 \u00b0C\/min to room temp before opening.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Ventilation:<\/strong> Ensure exhaust is on and local hood is functioning during burn-off stage.<\/li>\n\n\n\n<li><strong>Recordkeeping:<\/strong> Log furnace ID, program, actual temp profile, operator, batch ID, and post-run observations.<\/li>\n\n\n\n<li><strong>Post-run:<\/strong> Allow chamber to fully cool; inspect crucibles and chamber for contamination; vacuum or brush cold ash only.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Atmosphere Considerations<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Air:<\/strong> Standard for many oxide systems but can oxidize elements faster at high temps.<\/li>\n\n\n\n<li><strong>Inert (Ar\/N\u2082):<\/strong> Requires gas purging capability and appropriate seals; prevents element oxidation but adds complexity and cost.<\/li>\n\n\n\n<li><strong>Reducing:<\/strong> Rarely used in muffle furnaces; safer to use tube furnaces designed for controlled atmospheres.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Safety Checklist (High-Temp Specific)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ensure <strong>door interlock<\/strong> and <strong>over-temperature limiter<\/strong> are functional.<\/li>\n\n\n\n<li>Operators must wear <strong>heat-resistant gloves<\/strong>, face shield, and lab coat during loading\/unloading operations.<\/li>\n\n\n\n<li>Use <strong>tongs<\/strong> rated for high temp and avoid placing hands near the door when opening.<\/li>\n\n\n\n<li>Provide <strong>clear SOPs<\/strong> for emergency shutdown and element failure.<\/li>\n\n\n\n<li>Keep <strong>fire extinguisher (class D and ABC as appropriate)<\/strong> and first-aid nearby.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Maintenance to Maximize Uptime<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Element inspection:<\/strong> Visual and resistance checks; replace matched sets.<\/li>\n\n\n\n<li><strong>Insulation integrity:<\/strong> Repair or replace spalled bricks or fiber panels.<\/li>\n\n\n\n<li><strong>Thermocouple monitoring:<\/strong> Replace before drift compromises experiments.<\/li>\n\n\n\n<li><strong>Door seal:<\/strong> High temp seals wear faster\u2014stock spares.<\/li>\n\n\n\n<li><strong>Service contract:<\/strong> For critical R&amp;D labs, secure a preventive maintenance schedule with the vendor.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Performance Optimization Tips<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pre-heat soak at intermediate temps<\/strong> to remove volatiles before hitting max temperature.<\/li>\n\n\n\n<li><strong>Minimize door openings<\/strong> and batch your runs to reduce thermal cycling.<\/li>\n\n\n\n<li><strong>Use sample shields<\/strong> and sacrificial plates to protect elements from direct vapor attack.<\/li>\n\n\n\n<li><strong>Request a vendor uniformity map<\/strong> at your setpoint and use it to position critical samples.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ (High-Temp Focused)<\/h2>\n\n\n\n<p><strong>Q1: Can MoSi\u2082 elements be used continuously at 1,800 \u00b0C?<\/strong><br>MoSi\u2082 is rated near ~1,800 \u00b0C in air for limited durations; continuous operation at max rating shortens life. Consult vendor ratings and plan controlled cooldowns.<\/p>\n\n\n\n<p><strong>Q2: Do I need a tube furnace for inert atmospheres?<\/strong><br>If strict gas control is needed, a tube furnace is typically better. Some high-temp muffles support purge kits but they have limits.<\/p>\n\n\n\n<p><strong>Q3: How often should I replace thermocouples?<\/strong><br>For daily research use at high temps, inspect quarterly and replace annually or when drift is detected.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Model<\/td><td>ZYG-1400III-200<\/td><\/tr><tr><td>Furnace tube specifications<\/td><td>Outer diameter: 80 \u00d7 Inner diameter: 72 \u00d7 Length: 1300 mm (Please contact the sales manager for other dimensions)<\/td><\/tr><tr><td>Operating voltage<\/td><td>AC 380V\uff0c50Hz<\/td><\/tr><tr><td>Heating element<\/td><td>Silicon carbon rod<\/td><\/tr><tr><td>Operating temperature<\/td><td>Maximum temperature: 1400\u00b0C (\u226430 minutes)<br>Long-term operating temperature: 800-1300\u00b0C<br>Recommended heating rate: 1000-1300\u00b0C: \u22645\u00b0C\/min<\/td><\/tr><tr><td>Heating zone<\/td><td>Heating zone length: 3*200mm<\/td><\/tr><tr><td>Constant temperature zone<\/td><td>400mm\uff08\u00b15\u2103\uff09<\/td><\/tr><tr><td>Maximum power<\/td><td>12KW<\/td><\/tr><tr><td>Security Features<\/td><td>Standard: Over-temperature alarm and door-opening power-off function<\/td><\/tr><tr><td>Features<\/td><td>Standard three-color status reminder function: blue for waiting, green for running, and red for abnormality (with buzzer)<\/td><\/tr><tr><td>Display accuracy<\/td><td>\u00b11\u2103<\/td><\/tr><tr><td>Can ventilate the atmosphere<\/td><td>Various atmospheres such as oxygen, nitrogen, argon, etc.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Vacuum Tube Furnace Video<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-iframe themepark-iframe\"><iframe src=\"https:\/\/www.youtube.com\/embed\/oVE9Sb0TBpg?si=07_HePL68xfWLuXm\" title=\"vacuum tube furnace\" scrolling=\"no\" frameborder=\"0\"><\/iframe><img decoding=\"async\" alt=\"vacuum tube furnace\" src=\"https:\/\/yexintech.com\/wp-content\/themes\/smartenterprise\/images\/iframe.jpg\"\/><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2082,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f0f4f9","themepark_post_width":"100%","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":true,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":true,"footnotes":""},"categories":[48],"tags":[64],"class_list":["post-1921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lab-furnace","tag-high-temperature-muffle-furnace"],"metadata":{"_canshu":["a:4:{i:0;a:5:{s:5:\"title\";s:4:\"Size\";s:4:\"text\";s:9:\"customize\";s:2:\"f1\";s:0:\"\";s:2:\"f2\";s:0:\"\";s:2:\"f3\";s:0:\"\";}i:1;a:5:{s:5:\"title\";s:26:\"Classification temperature\";s:4:\"text\";s:14:\"\t1200-1900 \u00b0C\";s:2:\"f1\";s:0:\"\";s:2:\"f2\";s:0:\"\";s:2:\"f3\";s:0:\"\";}i:2;a:5:{s:5:\"title\";s:19:\"Working temperature\";s:4:\"text\";s:13:\"1000-1750 \u00b0C\";s:2:\"f1\";s:0:\"\";s:2:\"f2\";s:0:\"\";s:2:\"f3\";s:0:\"\";}i:3;a:5:{s:5:\"title\";s:5:\"Usage\";s:4:\"text\";s:53:\"High temperature fields that require product rigidity\";s:2:\"f1\";s:0:\"\";s:2:\"f2\";s:0:\"\";s:2:\"f3\";s:0:\"\";}}"],"themepark_post_width":["100%"],"themepark_post_img":[""],"themepark_post_img_re":[""],"themepark_post_img_cover":[""],"themepark_post_img_fixed":[""],"themepark_post_hide_title":["1"],"themepark_paddingblock":["1"],"catce":["sidebar-widgets4"],"views":["4925"],"themepark_post_bcolor":["#f0f4f9"],"themepark_seo_description":["Reliable high temperature muffle furnaces designed for advanced materials processing. Choose from standard or custom configurations to meet your needs."],"_wp_old_date":["2025-03-31","2025-08-08"],"themepark_seo_title":["Industrial High Temperature Muffle Furnace | Durable & Reliable Performance"],"themepark_seo_keyword":["High Heat Muffle Oven\uff0cLaboratory High Temp Furnace\uff0cIndustrial Muffle Furnace"],"_wp_old_slug":["ceramic-fiberboard"],"_dp_original":["1919"],"_edit_lock":["1758958380:1"],"_edit_last":["1"],"_thumbnail_id":["2082"]},"medium_url":"https:\/\/yexintech.com\/wp-content\/uploads\/2025\/09\/box-furnace-2-300x300.jpg","thumbnail_url":"https:\/\/yexintech.com\/wp-content\/uploads\/2025\/09\/box-furnace-2-150x150.jpg","full_url":"https:\/\/yexintech.com\/wp-content\/uploads\/2025\/09\/box-furnace-2.jpg","_links":{"self":[{"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/posts\/1921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/comments?post=1921"}],"version-history":[{"count":3,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/posts\/1921\/revisions"}],"predecessor-version":[{"id":2084,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/posts\/1921\/revisions\/2084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/media\/2082"}],"wp:attachment":[{"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/media?parent=1921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/categories?post=1921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yexintech.com\/ja\/wp-json\/wp\/v2\/tags?post=1921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}