Karbid k\u0159em\u00edku je vynikaj\u00edc\u00ed neoxidov\u00fd keramick\u00fd materi\u00e1l s v\u00fdjime\u010dn\u00fdmi vlastnostmi. Karbid k\u0159em\u00edku je obzvl\u00e1\u0161t\u011b tvrd\u00fd a je ide\u00e1ln\u00edm materi\u00e1lem pro v\u00fdrobu sou\u010d\u00e1stek odoln\u00fdch proti opot\u0159eben\u00ed nebo abraziv.<\/p>\n
Vyzna\u010duje se tak\u00e9 vynikaj\u00edc\u00ed odolnost\u00ed proti korozi a m\u016f\u017ee bezpe\u010dn\u011b pracovat po del\u0161\u00ed dobu v kysel\u00e9m, alkalick\u00e9m a oxida\u010dn\u00edm prost\u0159ed\u00ed. Krom\u011b toho je d\u00edky sv\u00fdm vysok\u00fdm teplot\u00e1m vhodn\u00fd pro pou\u017eit\u00ed v pec\u00edch na roztaven\u00e9 kovy a dal\u0161\u00edch topn\u00fdch za\u0159\u00edzen\u00edch.<\/p>\n
Karbid k\u0159em\u00edku je zn\u00e1m\u00fd svou vysokou odolnost\u00ed proti korozi a m\u016f\u017ee se pochlubit tvrdost\u00ed podle Mohsovy stupnice 9. Vykazuje tak\u00e9 vynikaj\u00edc\u00ed odolnost proti opot\u0159eben\u00ed, co\u017e z n\u011bj \u010din\u00ed vynikaj\u00edc\u00ed volbu pro aplikace, kter\u00e9 pracuj\u00ed v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch prost\u0159ed\u00ed. Krom\u011b toho karbid k\u0159em\u00edku funguje tak\u00e9 jako elektrick\u00fd izolant.<\/p>\n
Z\u00e1kladn\u00ed kysl\u00edkov\u00e1 pec, ozna\u010dovan\u00e1 tak\u00e9 jako Linz-Donawitz\u016fv proces v\u00fdroby oceli nebo v\u00fdroba oceli s kysl\u00edkov\u00fdm konvertorem, p\u0159edstavuje 67% celosv\u011btov\u00e9 v\u00fdroby surov\u00e9 oceli. Tato technologie vyu\u017e\u00edv\u00e1 vh\u00e1n\u011bn\u00ed kysl\u00edku do roztaven\u00e9ho surov\u00e9ho \u017eeleza v \u017e\u00e1ruvzdorn\u00e9 vyzd\u011bn\u00e9 n\u00e1dob\u011b za \u00fa\u010delem jeho oxidace a v\u00fdroby surov\u00e9 oceli.<\/p>\n
Modern\u00ed ocel\u00e1rny obvykle vyu\u017e\u00edvaj\u00ed z\u00e1kladn\u00ed proces kysl\u00edkov\u00e9 pece, p\u0159i kter\u00e9m se roztaven\u00e9 \u017eelezo m\u00eds\u00ed s \u010dist\u00fdm kysl\u00edkem, aby se ocel vyr\u00e1b\u011bla rychle a efektivn\u011b. Kop\u00ed s n\u011bkolika tryskami vh\u00e1n\u00ed tento \u010dist\u00fd kysl\u00edk nad konvertorovou komoru konvertoru a p\u0159em\u011b\u0148uje jej na exotermick\u00e9 teplo, kter\u00e9 tav\u00ed uhl\u00edkov\u00e9 usazeniny a sou\u010dasn\u011b vytv\u00e1\u0159\u00ed ocel vhodnou pro r\u016fzn\u00e1 pou\u017eit\u00ed.<\/p>\n
Ocel\u00e1rny jsou velk\u00e1 integrovan\u00e1 za\u0159\u00edzen\u00ed, jejich\u017e v\u00fdstavba a provoz obvykle stoj\u00ed $1 a\u017e $4 miliard a kter\u00e1 vyr\u00e1b\u011bj\u00ed r\u016fzn\u00e9 hotov\u00e9 v\u00fdrobky, jako jsou t\u011b\u017ek\u00e9 plechy a trubky a tak\u00e9 kolejnice a ty\u010de, s ro\u010dn\u00ed v\u00fdrobn\u00ed kapacitou p\u0159esahuj\u00edc\u00ed 2 000 000 tun ro\u010dn\u011b.<\/p>\n
Integrovan\u00e9 hut\u011b se obvykle skl\u00e1daj\u00ed z koksovac\u00edch pec\u00ed a chemick\u00e9ho z\u00e1vodu na zpracov\u00e1n\u00ed uhl\u00ed, aglomera\u010dn\u00edho z\u00e1vodu, vysok\u00e9 pece, tav\u00edrny oceli a v\u00e1lcovny. Vysok\u00e1 pec p\u0159em\u011b\u0148uje \u017eeleznou rudu na tekutou ocel, kterou lze pot\u00e9 odl\u00e9vat do r\u016fzn\u00fdch tvar\u016f.<\/p>\n
Pl\u00e1nov\u00e1n\u00ed v\u00fdrobn\u00edho procesu v ocel\u00e1rn\u011b zahrnuje pochopen\u00ed v\u0161ech jeho postup\u016f. Pokud postupy na vy\u0161\u0161\u00edch stupn\u00edch v\u00fdroby nemohou \u00fa\u010dinn\u011b spolupracovat s postupy na ni\u017e\u0161\u00edch stupn\u00edch v\u00fdroby, m\u016f\u017ee doj\u00edt k pl\u00fdtv\u00e1n\u00ed za\u0159\u00edzen\u00edm a lidsk\u00fdmi zdroji; \u0159e\u0161en\u00edm tohoto probl\u00e9mu mohou b\u00fdt skute\u010dn\u00e9 optimaliza\u010dn\u00ed schopnosti, kter\u00e9 p\u0159ekra\u010duj\u00ed tradi\u010dn\u00ed syst\u00e9mov\u00e9 hranice. Energetick\u00e1 n\u00e1ro\u010dnost se v tomto odv\u011btv\u00ed za posledn\u00edch patn\u00e1ct let v\u00fdrazn\u011b sn\u00ed\u017eila.<\/p>\n
Karbid k\u0159em\u00edku je jednou z nejtvrd\u0161\u00edch zn\u00e1m\u00fdch l\u00e1tek, jeho tvrdost je srovnateln\u00e1 s tvrdost\u00ed diamantu podle Mohsovy stupnice. D\u00edky sv\u00e9 vynikaj\u00edc\u00ed odolnosti proti opot\u0159eben\u00ed m\u00e1 mnohostrann\u00e9 vyu\u017eit\u00ed p\u0159i abrazivn\u00edm obr\u00e1b\u011bn\u00ed. Karbid k\u0159em\u00edku nav\u00edc vykazuje vynikaj\u00edc\u00ed korozn\u00ed odolnost, proto\u017ee si zachov\u00e1v\u00e1 pevnost a\u017e do teploty 2700 stup\u0148\u016f Celsia.<\/p>\n
V prost\u0159ed\u00ed chemick\u00e9ho zpracov\u00e1n\u00ed jsou kovy \u010dasto vystaveny p\u016fsoben\u00ed kyselin, louh\u016f a dal\u0161\u00edch \u0161kodliv\u00fdch l\u00e1tek; nav\u00edc m\u00e1 vynikaj\u00edc\u00ed tepelnou vodivost a n\u00edzk\u00fd koeficient rozta\u017enosti, co\u017e zvy\u0161uje spolehlivost.<\/p>\n
Karborund lze dopovat fosforem nebo dus\u00edkem, aby vznikl polovodi\u010d typu n, a beryliem, b\u00f3rem, hlin\u00edkem a heliem pro dopov\u00e1n\u00ed typu p. D\u00edky \u0161irok\u00e9mu p\u00e1smu, kter\u00e9 umo\u017e\u0148uje \u00fa\u010dinn\u011bj\u0161\u00ed p\u0159enos elektrick\u00e9 energie ne\u017e tradi\u010dn\u00ed polovodi\u010de, jako je k\u0159em\u00edk nebo germanium, je vhodn\u00fd pro v\u00fdkonovou elektroniku, nap\u0159\u00edklad DC\/DC m\u011bni\u010de pro nab\u00edjec\u00ed syst\u00e9my elektromobil\u016f, v\u00fdrobu LED diod a tak\u00e9 pro brou\u0161en\u00ed\/le\u0161t\u011bn\u00ed drah\u00fdch kamen\u016f. Karborundum samotn\u00e9 m\u016f\u017ee b\u00fdt n\u011bkdy dokonce pou\u017eito jako drahokam!<\/p>\n
Karbid k\u0159em\u00edku hraje kl\u00ed\u010dovou roli p\u0159i v\u00fdrob\u011b automobil\u016f a nab\u00edz\u00ed \u0159adu v\u00fdhod, kter\u00e9 pom\u00e1haj\u00ed sn\u00ed\u017eit spot\u0159ebu energie a \u00fa\u010dty za elekt\u0159inu. Karbid k\u0159em\u00edku nab\u00edz\u00ed v\u00fdznamn\u00e9 potenci\u00e1ln\u00ed \u00faspory v cel\u00e9m odv\u011btv\u00ed, kter\u00e9 \u010del\u00ed tak dramatick\u00fdm zm\u011bn\u00e1m, proto\u017ee hraje svou roli.<\/p>\n
Karbid k\u0159em\u00edku (SiC) je extr\u00e9mn\u011b tvrd\u00e1 a odoln\u00e1 synteticky vyr\u00e1b\u011bn\u00e1 krystalick\u00e1 slou\u010denina k\u0159em\u00edku a uhl\u00edku, obvykle dostupn\u00e1 jako slinut\u00fd materi\u00e1l a vyr\u00e1b\u011bn\u00e1 r\u016fzn\u00fdmi technikami, jako je rekrystalizace, lisov\u00e1n\u00ed za tepla, mikrovlnn\u00e9 slinov\u00e1n\u00ed, reak\u010dn\u00ed slinov\u00e1n\u00ed nebo beztlakov\u00e9 slinov\u00e1n\u00ed. Karbid k\u0159em\u00edku slou\u017e\u00ed k d\u016fle\u017eit\u00fdm \u00fa\u010del\u016fm jako brusn\u00fd materi\u00e1l a lze jej nal\u00e9zt v brusn\u00fdch kotou\u010d\u00edch, \u0159ezn\u00fdch n\u00e1stroj\u00edch a v\u00fdrobc\u00edch z brusn\u00e9ho pap\u00edru.<\/p>\n
Karbid k\u0159em\u00edku m\u00e1 d\u00edky sv\u00e9 polovodi\u010dov\u00e9 povaze v\u00fdjime\u010dn\u00e9 elektrick\u00e9 vlastnosti. Odolnost tohoto materi\u00e1lu v\u016f\u010di organick\u00fdm a anorganick\u00fdm kyselin\u00e1m, sol\u00edm a z\u00e1sad\u00e1m je vy\u0161\u0161\u00ed ne\u017e u mnoha jejich prot\u011bj\u0161k\u016f, jejich\u017e odolnost se li\u0161\u00ed a\u017e o sedm \u0159\u00e1d\u016f; d\u00edky tomu je tento izola\u010dn\u00ed materi\u00e1l vhodn\u00fd pro aplikace, jako jsou trak\u010dn\u00ed m\u011bni\u010de pro elektrick\u00e1 vozidla a DC\/DC m\u011bni\u010de pro syst\u00e9my skladov\u00e1n\u00ed energie.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide is an outstanding nonoxide ceramic material with exceptional properties. Particularly hard, silicon carbide makes an ideal material for making wear-resistant components or abrasives. It also offers excellent corrosion resistance and can operate safely for extended periods in acid, alkali and oxidative environments. Furthermore, its high temperature performance makes it suitable for use in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[64],"tags":[],"class_list":["post-114","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/comments?post=114"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/114\/revisions"}],"predecessor-version":[{"id":115,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/114\/revisions\/115"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/media?parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/categories?post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/tags?post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}