Karbidov\u00e9 t\u00e9gliky sa pou\u017e\u00edvaj\u00fa v procesoch tavenia kovov na ochranu roztaven\u00e9ho materi\u00e1lu pred zne\u010disten\u00edm a odieran\u00edm, odol\u00e1vaj\u00fa vysok\u00fdm teplot\u00e1m a z\u00e1rove\u0148 maj\u00fa vynikaj\u00facu chemick\u00fa odolnos\u0165 a dlh\u00fa \u017eivotnos\u0165.<\/p>\n
Predhriatie SiC grafitov\u00fdch t\u00e9glikov pred pou\u017eit\u00edm pom\u00f4\u017ee eliminova\u0165 ich fyzick\u00e9 po\u0161kodenie t\u00fdm, \u017ee odstr\u00e1ni v\u0161etku vlhkos\u0165, ktor\u00e1 sa nahromadila pri v\u00fdrobe, skladovan\u00ed a preprave.<\/p>\n
Karbid krem\u00edka (SiC) je mimoriadne odoln\u00fd materi\u00e1l pou\u017e\u00edvan\u00fd pri v\u00fdrobe zlievarensk\u00fdch t\u00e9glikov. Tieto n\u00e1doby sl\u00fa\u017eia na tavenie a udr\u017eiavanie kovu po\u010das procesov odlievania a musia odol\u00e1va\u0165 extr\u00e9mnym teplot\u00e1m a tepeln\u00fdm \u0161okom bez toho, aby sa rozbili, a z\u00e1rove\u0148 musia by\u0165 odoln\u00e9 vo\u010di kor\u00f3zii, aby sa pred\u013a\u017eila ich \u017eivotnos\u0165. SiC t\u00e9gliky s\u00fa ide\u00e1lnou vo\u013ebou v\u010faka svojej vynikaj\u00facej tepelnej odolnosti a antikor\u00f3znym vlastnostiam.<\/p>\n
V r\u00e1mci v\u00fdrobn\u00e9ho procesu v\u00fdrobcovia formuj\u00fa t\u00e9gliky z grafitov\u00e9ho pr\u00e1\u0161ku a pred impregn\u00e1ciou smoly a grafitiz\u00e1ciou ich vypa\u013euj\u00fa v peci alebo v peci. Po dokon\u010den\u00ed musia tieto t\u00e9gliky prejs\u0165 rozsiahlymi sk\u00fa\u0161kami, aby sa zabezpe\u010dilo, \u017ee sp\u013a\u0148aj\u00fa \u0161pecifik\u00e1cie; po\u010das t\u00fdchto pr\u00edsnych sk\u00fa\u0161ok sa na nich uplat\u0148uj\u00fa extr\u00e9mne teploty a tlaky s cie\u013eom otestova\u0165 odolnos\u0165.<\/p>\n
Hoci s\u00fa grafitov\u00e9 t\u00e9gliky SiC relat\u00edvne odoln\u00e9 vo\u010di tepeln\u00fdm \u0161okom, odpor\u00fa\u010da sa ich pred pou\u017eit\u00edm predhria\u0165. T\u00fdm sa zabr\u00e1ni pr\u00edli\u0161 r\u00fdchlemu ochladeniu t\u00e9glika, ktor\u00e9 by mohlo ma\u0165 za n\u00e1sledok praskanie a rozbitie. Okrem toho je ve\u013emi d\u00f4le\u017eit\u00e9 nevystavova\u0165 ho p\u00f4sobeniu l\u00e1tok, ktor\u00e9 obsahuj\u00fa koroz\u00edvne alebo reakt\u00edvne prvky, ktor\u00e9 by mohli naru\u0161i\u0165 jeho integritu alebo sp\u00f4sobi\u0165 kontamin\u00e1ciu usadeninami trosky.<\/p>\n
Tygliky z karbidu krem\u00edka s\u00fa odoln\u00e9 vo\u010di kor\u00f3zii, tak\u017ee s\u00fa vhodn\u00e9 na ur\u010dit\u00e9 aplik\u00e1cie, zatia\u013e \u010do ich odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom ich predur\u010duje na tavenie a odlievanie zliatin \u017eelezn\u00fdch a ne\u017eelezn\u00fdch kovov. Ich \u00fa\u010dinn\u00fd prenos tepla u\u013eah\u010duje r\u00fdchlej\u0161ie procesy tavenia a chladenia. Tygliky z karbidu krem\u00edka zohr\u00e1vaj\u00fa cenn\u00fa \u00falohu aj v zlievar\u0148ach \u0161perkov na tavenie drah\u00fdch kovov, ako je zlato, striebro, platina a me\u010f.<\/p>\n
Pri v\u00fdbere ide\u00e1lneho t\u00e9glika pre va\u0161u aplik\u00e1ciu by ste mali starostlivo zv\u00e1\u017ei\u0165 typ pece, kapacitu taveniny a typ kovov, ktor\u00e9 budete tavi\u0165. Okrem toho jeho kompatibilita so v\u0161etk\u00fdmi pr\u00edsadami alebo tavidlami, ktor\u00e9 m\u00f4\u017eete pou\u017ei\u0165, zabezpe\u010d\u00ed jeho \u010do najdlh\u0161iu \u017eivotnos\u0165. Vedenie presn\u00e9ho z\u00e1znamu o jej pou\u017e\u00edvan\u00ed m\u00f4\u017ee pom\u00f4c\u0165 ur\u010di\u0165, kedy sa jej \u017eivotnos\u0165 skon\u010dila.<\/p>\n
Kor\u00f3zia v t\u00e9glikoch sa zvy\u010dajne prejavuje ako priehlbiny na ich spodnom povrchu, ktor\u00e9 s\u00fa sp\u00f4soben\u00e9 pr\u00edsadami a oxidmi kovov pl\u00e1vaj\u00facimi vo vn\u00fatri. T\u00fdmto usadenin\u00e1m sa d\u00e1 pred\u00eds\u0165 pou\u017eit\u00edm kvalitnej\u0161ej trosky a udr\u017eiavan\u00edm \u010do najni\u017e\u0161\u00edch tepl\u00f4t. Okrem toho pridanie tavidla po \u00faplnom roztaven\u00ed v\u0161etk\u00e9ho kovu m\u00f4\u017ee pom\u00f4c\u0165 chr\u00e1ni\u0165 t\u00e9gliky pred \u010fal\u0161\u00edm po\u0161koden\u00edm kor\u00f3ziou.<\/p>\n
Tygliky z karbidu krem\u00edka s\u00fa ide\u00e1lne na pou\u017eitie s reakt\u00edvnymi prvkami a zl\u00fa\u010deninami v\u010faka svojej chemickej inertnosti a odolnosti vo\u010di kysl\u00fdm a z\u00e1sadit\u00fdm materi\u00e1lom. V\u010faka svojej inertnosti s\u00fa vhodn\u00e9 aj na chemick\u00e9 synt\u00e9zy, ako aj na reakcie pri vysok\u00fdch teplot\u00e1ch. Be\u017ene sa vyr\u00e1baj\u00fa zo zmesi pr\u00e1\u0161ku a spojiva, potom sa formuj\u00fa do po\u017eadovan\u00e9ho tvaru t\u00e9glika pred vyp\u00e1len\u00edm pri ve\u013emi vysok\u00fdch teplot\u00e1ch, k\u00fdm sa nedosiahne \u00fapln\u00e9 zhutnenie a pevnos\u0165. Po ukon\u010den\u00ed v\u00fdpalu sa dokon\u010dia opracovan\u00e9 rozmery a povrchov\u00e1 \u00faprava na dodanie kone\u010dn\u00e9ho v\u00fdrobku.<\/p>\n
Tieto t\u00e9gliky s\u00fa ide\u00e1lne na tavenie ne\u017eelezn\u00fdch kovov a zliatin, ako je zlato a striebro, a na odlievanie \u017eeleza, ako aj v metalurgick\u00fdch laborat\u00f3ri\u00e1ch na vykon\u00e1vanie vysokoteplotn\u00fdch experimentov. S\u00fa nielen odoln\u00e9 vo\u010di kor\u00f3zii, ale maj\u00fa aj vynikaj\u00facu odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom!<\/p>\n
Ak chcete zabezpe\u010di\u0165 \u010do najdlh\u0161iu \u017eivotnos\u0165 grafitov\u00e9ho t\u00e9glika z karbidu krem\u00edka, dbajte na to, aby bol v\u017edy such\u00fd a \u010dist\u00fd. Pri jeho \u010disten\u00ed po ka\u017edom pou\u017eit\u00ed zabezpe\u010dte pravideln\u00e9 odstra\u0148ovanie akejko\u013evek trosky z jeho v\u00fdstelky. Okrem toho vedenie z\u00e1znamov o tom, ako \u010dasto a ak\u00fd typ materi\u00e1lu tav\u00edte, m\u00f4\u017ee pom\u00f4c\u0165 predpoveda\u0165, kedy je \u010das na v\u00fdmenu t\u00e9glika, ako aj \u013eahko ur\u010di\u0165, ktor\u00fd druh sa najlep\u0161ie hod\u00ed k va\u0161ej peci.<\/p>\n
Tygliky z karbidu krem\u00edka maj\u00fa n\u00edzku tepeln\u00fa roz\u0165a\u017enos\u0165 a s\u00fa ide\u00e1lnym n\u00e1strojom na tavenie ne\u017eelezn\u00fdch kovov, ako je zlato, striebro, me\u010f, hlin\u00edk, olovo a zinok a stredne uhl\u00edkat\u00e1 oce\u013e. V\u010faka ich schopnosti zn\u00e1\u0161a\u0165 vysok\u00e9 teploty a r\u00fdchle cykly ohrevu\/chladenia po\u010das tavenia s\u00fa tieto t\u00e9gliky ide\u00e1lne na procesy tavenia\/odlievania drah\u00fdch kovov, ako aj na pou\u017eitie v peciach. \u010casto sa pou\u017e\u00edvaj\u00fa pri procesoch tavenia\/odlievania drah\u00fdch kovov, ako aj pri br\u00fasen\u00fdch peciach.<\/p>\n
Grafit je mimoriadne pevn\u00fd materi\u00e1l, ktor\u00fd dobre odol\u00e1va vysok\u00fdm teplot\u00e1m a mechanick\u00e9mu nam\u00e1haniu. M\u00f4\u017ee v\u0161ak popraska\u0165, ak sa t\u00e9glik prehreje alebo d\u00f4jde k n\u00e1hlej zmene teploty; na ochranu tohto materi\u00e1lu je vhodn\u00e9 t\u00e9glik pred pou\u017eit\u00edm zakry\u0165 a predhria\u0165.<\/p>\n
Po\u0161kodenie t\u00e9glika sa d\u00e1 \u0165a\u017eko opravi\u0165. Jednou z be\u017en\u00fdch komplik\u00e1ci\u00ed s\u00fa pozd\u013a\u017ene trhliny na jeho povrchu sp\u00f4soben\u00e9 r\u00fdchlym zahriat\u00edm jeho gomb\u00edka alebo chemick\u00fdm napadnut\u00edm, ktor\u00e9 vedie k vzniku trhl\u00edn. \u010eal\u0161\u00ed mo\u017en\u00fd probl\u00e9m zah\u0155\u0148a po\u0161kodenie v d\u00f4sledku oderu alebo chemick\u00e9ho \u00fatoku, ktor\u00e9 by tie\u017e mohli vies\u0165 k vzniku trhl\u00edn.<\/p>\n
Aby ste t\u00fato mo\u017enos\u0165 minimalizovali, je ve\u013emi d\u00f4le\u017eit\u00e9 pravidelne \u010disti\u0165 a odstra\u0148ova\u0165 vodn\u00fd kame\u0148 z t\u00e9glika, aby ste z neho odstr\u00e1nili usadeniny - t\u00fdm sa zabr\u00e1ni ich vplyvu na bud\u00face tavby a ochr\u00e1ni sa pred chemick\u00fdm napadnut\u00edm. Okrem toho sa sna\u017ete nadmerne nepou\u017e\u00edva\u0165 pr\u00edsady do tavidiel - tavidl\u00e1 m\u00f4\u017eu po\u0161kodi\u0165 t\u00e9gliky t\u00fdm, \u017ee vytv\u00e1raj\u00fa nap\u00e4\u0165ov\u00e9 body nezam\u00fd\u0161\u013ean\u00e9 ich kon\u0161trukciou, a t\u00fdm zvy\u0161uj\u00fa nam\u00e1hanie in\u00fdch \u010dast\u00ed n\u00e1doby.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide crucibles are used in metal smelting processes to protect molten material from contamination and abrasion, withstanding high temperatures […]<\/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":[5],"tags":[],"class_list":["post-98","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/98","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/comments?post=98"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/98\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/98\/revisions\/99"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/media?parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/categories?post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/tags?post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}