{"id":6348,"date":"2025-02-28T14:39:01","date_gmt":"2025-02-28T06:39:01","guid":{"rendered":"http:\/\/weierte.jyjl.cn\/?p=6348"},"modified":"2026-01-21T16:24:49","modified_gmt":"2026-01-21T08:24:49","slug":"large-size-magnesia-crucible","status":"publish","type":"post","link":"https:\/\/weiert-ceramics.com\/cs\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/","title":{"rendered":"Magn\u00e9ziov\u00e9 kel\u00edmky pro induk\u010dn\u00ed taven\u00ed"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"900\" src=\"https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b-900x900.jpg\" alt=\"High-temperature vacuum induction melting using Weiert Ceramics\u2019 high-purity MgO crucible for nickel-based superalloys\" class=\"wp-image-7174\" srcset=\"https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b-900x900.jpg 900w, https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b-600x600.jpg 600w, https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b-150x150.jpg 150w, https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b-768x767.jpg 768w, https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b-12x12.jpg 12w, https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a4b4c9ba7c4ab099937b.jpg 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"h-oxygen-supply-challenge-of-mgo-crucibles-in-induction-melting\"><strong>Probl\u00e9m uvol\u0148ov\u00e1n\u00ed kysl\u00edku z MgO kel\u00edmk\u016f p\u0159i induk\u010dn\u00edm taven\u00ed<\/strong><\/h4>\n\n\n\n<p>P\u0159i v\u00fdrob\u011b superslitin na b\u00e1zi niklu je vakuov\u00e9 induk\u010dn\u00ed taven\u00ed (VIM) z\u00e1sadn\u00edm procesem. \u010casto opom\u00edjen\u00fdm probl\u00e9mem v\u0161ak je, \u017ee samotn\u00fd MgO kel\u00edmek m\u016f\u017ee p\u016fsobit jako necht\u011bn\u00fd zdroj kysl\u00edku.<\/p>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-the-phenomenon-of-oxygen-supply\"><strong>Fenom\u00e9n uvol\u0148ov\u00e1n\u00ed kysl\u00edku<\/strong><\/h4>\n\n\n\n<p>D\u0159\u00edv\u011bj\u0161\u00ed studie (e.g., Wu Chaowan 1964) uk\u00e1zaly, \u017ee b\u011bhem vakuov\u00e9ho induk\u010dn\u00edho taven\u00ed (VIM) \u010dist\u00e9ho \u017eeleza m\u016f\u017ee st\u011bna kel\u00edmku uvol\u0148ovat kysl\u00edk do taveniny, co\u017e vede k op\u011btovn\u00e9mu zv\u00fd\u0161en\u00ed obsahu kysl\u00edku v kovu po po\u010d\u00e1te\u010dn\u00ed redukci.\nNed\u00e1vn\u00fd v\u00fdzkum (Li et al., 2024) potvrzuje, \u017ee i vysoce \u010dist\u00e9 MgO kel\u00edmky mohou za podm\u00ednek vysok\u00e9ho vakua a vysok\u00e9 teploty podl\u00e9hat m\u00edrn\u00e9mu rozkladu (MgO(s) \u21cc Mg(g) + \u00bd O\u2082(g)).<\/p>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-impact-on-casting-quality\"><strong>Dopad na kvalitu odlitku<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V tavenin\u00e1ch \u010dist\u00e9ho niklu obsah kysl\u00edku zpo\u010d\u00e1tku kles\u00e1, pot\u00e9 se v\u0161ak znovu zvy\u0161uje;<\/li>\n\n\n\n<li>U slitin na b\u00e1zi niklu m\u016f\u017ee zv\u00fd\u0161en\u00fd obsah kysl\u00edku v\u00e9st ke vzniku vm\u011bstk\u016f Al\u2082O\u2083, \u010d\u00edm\u017e se sni\u017euje creepov\u00e1 odolnost a tahov\u00e9 vlastnosti;<\/li>\n\n\n\n<li>Tyto vm\u011bstky zhor\u0161uj\u00ed dlouhodob\u00fd v\u00fdkon a spolehlivost slitiny.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-weiert-ceramics-technical-control-strategy\"><strong>Technick\u00e1 kontroln\u00ed strategie spole\u010dnosti Weiert Ceramics<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pou\u017eit\u00ed ultravysoce \u010dist\u00fdch surovin MgO (\u226599,7 %) za \u00fa\u010delem minimalizace vnit\u0159n\u00edch zdroj\u016f kysl\u00edku;<\/li>\n\n\n\n<li>P\u0159\u00edsn\u00e1 kontrola vakuov\u00fdch podm\u00ednek a udr\u017eov\u00e1n\u00ed teploty taveniny p\u0159ibli\u017en\u011b na 1.550 \u00b0C.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-verification-amp-results\"><strong>Ov\u011b\u0159en\u00ed a v\u00fdsledky<\/strong><\/h4>\n\n\n\n<p>V porovn\u00e1vac\u00edch zkou\u0161k\u00e1ch sn\u00ed\u017eily upraven\u00e9 kel\u00edmky Weiert Ceramics obsah kysl\u00edku v tavenin\u011b z p\u0159ibli\u017en\u011b 3,2 \u00d7 10\u207b\u2076 na zhruba 1,4 \u00d7 10\u207b\u2076, p\u0159i\u010dem\u017e rychlost p\u0159\u00edvodu kysl\u00edku byla sn\u00ed\u017eena asi o 60 %.<\/p>\n\n\n\n<div style=\"height:17px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-summary\"><strong>Shrnut\u00ed<\/strong><\/h4>\n\n\n\n<p>P\u0159\u00edsun kysl\u00edku z kel\u00edmk\u016f p\u0159edstavuje skryt\u00fd zdroj kontaminace. Pou\u017eit\u00edm vysoce \u010dist\u00fdch materi\u00e1l\u016f a ochrann\u00fdch povlak\u016f nab\u00edz\u00ed Weiert Ceramics pokro\u010dil\u00e1 \u0159e\u0161en\u00ed kel\u00edmk\u016f, kter\u00e1 umo\u017e\u0148uj\u00ed vy\u0161\u0161\u00ed \u010distotu slitiny a lep\u0161\u00ed opakovatelnost procesu.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Reference\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wu Chaowan, <em>Studies on MgO Crucible in Vacuum Induction Furnace for Pure Iron Melting<\/em>, Acta Metallurgica Sinica, 1964.<\/li>\n\n\n\n<li>Li Xu-Ze et al., <em>Deoxidation of Nickel-Based Superalloy Using Carbon under High Vacuum Considering MgO-Crucible Decomposition<\/em>, Metallurgical &amp; Materials Transactions B, 2024.<\/li>\n\n\n\n<li>Yan Jing, <em>Vacuum Induction Melting of BY-Series Deformation Nickel-Based Superalloy: Loss Mechanisms of MgO Crucibles<\/em>, Journal of Large-Scale Forgings &amp; Presses, 2024.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Oxygen Supply Challenge of MgO Crucibles in Induction Melting In nickel-based superalloy production, the vacuum induction melting (VIM) process is critical. Yet one often under-appreciated challenge is that the MgO crucible itself can act as an inadvertent oxygen source. The phenomenon of oxygen supply Earlier studies (e.g., Wu Chaowan 1964) indicated that during VIM of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6341,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[170],"tags":[],"class_list":["post-6348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magnesia-crucible-mgo"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Magnesia Crucibles for Induction Melting - Weiert Ceramics Technology Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Discover the critical issues surrounding high purity Magnesia crucibles in nickel superalloy production and their effects on performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/weiert-ceramics.com\/cs\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Magnesia Crucibles for Induction Melting\" \/>\n<meta property=\"og:description\" content=\"Discover the critical issues surrounding high purity Magnesia crucibles in nickel superalloy production and their effects on performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/weiert-ceramics.com\/cs\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/\" \/>\n<meta property=\"og:site_name\" content=\"Weiert Ceramics Technology Co., Ltd.\" \/>\n<meta property=\"article:published_time\" content=\"2025-02-28T06:39:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-21T08:24:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a87ff679a2f3e71d9181-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/weiert-ceramics.com\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/weiert-ceramics.com\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/weiert-ceramics.com\/ja\/#\/schema\/person\/68a9501854712f995cf9cead4b2a7721\"},\"headline\":\"Magnesia Crucibles for Induction Melting\",\"datePublished\":\"2025-02-28T06:39:01+00:00\",\"dateModified\":\"2026-01-21T08:24:49+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/weiert-ceramics.com\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/\"},\"wordCount\":290,\"publisher\":{\"@id\":\"https:\/\/weiert-ceramics.com\/ja\/#organization\"},\"image\":{\"@id\":\"https:\/\/weiert-ceramics.com\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/weiert-ceramics.com\/wp-content\/uploads\/2025\/02\/a87ff679a2f3e71d9181-1.jpg\",\"articleSection\":[\"Magnesia Crucible MgO\"],\"inLanguage\":\"cs\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/weiert-ceramics.com\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/\",\"url\":\"https:\/\/weiert-ceramics.com\/products\/ceramic-crucibles\/magnesia-crucible-mgo\/large-size-magnesia-crucible\/\",\"name\":\"Magnesia Crucibles for Induction Melting - 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