{"id":162,"date":"2016-01-16T18:13:43","date_gmt":"2016-01-16T10:13:43","guid":{"rendered":"http:\/\/boronnitrideceramic.com\/?page_id=162"},"modified":"2016-01-16T18:31:23","modified_gmt":"2016-01-16T10:31:23","slug":"boorinitridin-upokas","status":"publish","type":"page","link":"https:\/\/boronnitrideceramic.com\/fi\/boron-nitride-crucible\/","title":{"rendered":"boorinitridin upokas"},"content":{"rendered":"<p>Boorinitridill\u00e4 on korkea l\u00e4mm\u00f6nkest\u00e4vyys, alhainen l\u00e4mp\u00f6laajenemiskerroin, hyv\u00e4 l\u00e4mp\u00f6shokkien kest\u00e4vyys ja hyv\u00e4 korroosionkest\u00e4vyys.<br \/>\nvastus, joten<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-163 size-full alignleft\" src=\"http:\/\/boronnitrideceramic.com\/wp-content\/uploads\/2016\/01\/Boron-Nitride-Crucible.jpg\" alt=\"boorinitridin upokas\" width=\"241\" height=\"196\" \/> sit\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 upokkaana sulattaa metallia ja ep\u00e4orgaanista suolaa.K\u00e4ytt\u00e4m\u00e4ll\u00e4 kuumapuristustekniikkaa, BN materiaaleja voidaan k\u00e4sitell\u00e4 erilaisiin eritelmiin upokkaiden ja muiden s\u00e4ili\u00f6iden, joita voidaan laajalti k\u00e4ytt\u00e4\u00e4 sulattamiseen haihtuneen metallin upokas, veneen lautasen, pumpun osat, valettu ter\u00e4smuotti ja synteettinen GaAs kristalli upokas, jne..Boorinitridin keraaminen upokas sulattaa alumiinia, sinkki\u00e4 ja muita metalliseoksia sulattamiseen, sen sijaan, ett\u00e4 grafiitti upokas.Ominaisuus boorinitridin keraamiset upokkaat on seuraava.<br \/>\n1 vakaa kemiallinen suorituskyky, eik\u00e4 se reagoi sulavan metallin kanssa, parantaa seoksen puhtautta;<br \/>\n2 hyv\u00e4 hapettumiskest\u00e4vyys, korkeampi noin 400-500 astetta kuin grafiittimateriaalit, jopa 900 astetta;<br \/>\n3 k\u00e4ytt\u00f6ik\u00e4 on paljon pidempi kuin muilla materiaaleilla.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Boron nitride has high heat resistance, low thermal expansion coefficient, good thermal shock resistance and good corrosion resistance, so it [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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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