Karbid krem\u00edka m\u00e1 ostrej\u0161ie a tvrd\u0161ie br\u00fasne zrn\u00e1 ako oxid hlinit\u00fd, pri\u010dom je menej odoln\u00fd. \u013dahko re\u017ee sklo, plasty, drevovl\u00e1knit\u00e9 dosky strednej hustoty a kovy, ale m\u00f4\u017ee ma\u0165 probl\u00e9my s tvrd\u00fdm drevom alebo materi\u00e1lmi s vysokou pevnos\u0165ou v \u0165ahu.<\/p>\n
Br\u00fasne materi\u00e1ly z oxidu hlinit\u00e9ho sa nach\u00e1dzaj\u00fa na br\u00fasnych papieroch, br\u00fasnych kot\u00fa\u010doch a diskoch na pou\u017eitie v automobilovom priemysle na le\u0161tenie dielov v automobilov\u00fdch zostav\u00e1ch alebo odstra\u0148ovanie hrdze pri odstra\u0148ovan\u00ed otrepov z kovov\u00fdch povrchov a vyhladzovan\u00ed sklenen\u00fdch hr\u00e1n.<\/p>\n
Karbid krem\u00edka (ozna\u010dovan\u00fd aj ako korund) je jedn\u00fdm z najtvrd\u0161\u00edch dostupn\u00fdch br\u00fasnych zrniek s tvrdos\u0165ou 9. Pod\u013ea Mohsovej stupnice sa z h\u013eadiska tvrdosti nach\u00e1dza medzi mastencom a diamantom. V\u010faka ostr\u00fdm hran\u00e1m karbidu krem\u00edka je vhodn\u00fd na \u013eahk\u00e9 rezanie skla, plastov, keramiky, hol\u00e9ho kovu, farieb a \u010fal\u0161\u00edch materi\u00e1lov.<\/p>\n
Br\u00fasny papier vyroben\u00fd z karbidu krem\u00edka je ide\u00e1lny na mokr\u00e9 br\u00fasenie, preto\u017ee je odolnej\u0161\u00ed vo\u010di zan\u00e1\u0161aniu ako oxid hlinit\u00fd. Okrem toho sa zrnitos\u0165 karbidu krem\u00edka \u010dasto vol\u00ed pri le\u0161ten\u00ed kovov\u00fdch povrchov, ako aj pri drsn\u00fdch povrchoch, ako je kov, odstra\u0148ovanie hrdze alebo projekty renov\u00e1cie dreva.<\/p>\n
Oxid hlinit\u00fd, be\u017ene ozna\u010dovan\u00fd ako oxid hlinit\u00fd, sa opotreb\u00fava r\u00fdchlej\u0161ie ako karbid krem\u00edka, a preto sa hod\u00ed sk\u00f4r na aplik\u00e1cie s n\u00edzkym tlakom, ako s\u00fa ru\u010dn\u00e9 listy a orbit\u00e1lne kot\u00fa\u010de, hoci pre lacnej\u0161ie v\u00fdrobky sa m\u00f4\u017eu prid\u00e1va\u0165 tvrd\u0161ie zrn\u00e1, ako je oxid zirkoni\u010dit\u00fd alebo keramick\u00fd oxid hlinit\u00fd. Biele a ru\u017eov\u00e9 br\u00fasne materi\u00e1ly z oxidu hlinit\u00e9ho s hrubou a\u017e jemnou \u0161trukt\u00farou sa viac podobaj\u00fa karbidu krem\u00edka ako hned\u00fd oxid hlinit\u00fd, a preto sa r\u00fdchlej\u0161ie rozpadaj\u00fa a z\u00e1rove\u0148 poskytuj\u00fa hlad\u0161ie povrchov\u00e9 \u00fapravy ako ich hned\u00fd n\u00e1protivok.<\/p>\n
Karbid krem\u00edka je abraz\u00edvny materi\u00e1l zn\u00e1my svojou tvrdos\u0165ou, chemickou stabilitou a nekontaminovate\u013enos\u0165ou. Okrem toho m\u00e1 vysok\u00fd bod topenia, v\u010faka \u010domu je vhodn\u00fd na cel\u00fd rad aplik\u00e1ci\u00ed vr\u00e1tane br\u00fasnych materi\u00e1lov, v\u00fdkonovej elektroniky a \u017eiaruvzdorn\u00fdch materi\u00e1lov.<\/p>\n
Oxid hlinit\u00fd je m\u00e4kk\u00e9, menej odoln\u00e9 br\u00fasivo, ktor\u00e9 \u00fa\u010dinne p\u00f4sob\u00ed na niektor\u00e9 kovy, napr\u00edklad hlin\u00edk. Je k dispoz\u00edcii od hrubej po jemn\u00fa \u0161trukt\u00faru a po\u010das br\u00fasenia vytv\u00e1ra minim\u00e1lne teplo.<\/p>\n
M\u00e9di\u00e1 z oxidu hlinit\u00e9ho a karbidu krem\u00edka sa \u010dasto kombinuj\u00fa z r\u00f4znych d\u00f4vodov. Napr\u00edklad br\u00fasenie kovov s n\u00edzkou pevnos\u0165ou v \u0165ahu, ako je hlin\u00edk, si vy\u017eaduje tvrd\u00e9 br\u00fasne prostriedky bez produkcie pr\u00edli\u0161n\u00e9ho tepla; biely a hned\u00fd oxid hlinit\u00fd sa tu dobre osved\u010duj\u00fa, preto\u017ee ich zrn\u00e1 ostr\u00e9 ako britva pon\u00fakaj\u00fa presn\u00e9 br\u00fasenie bez produkcie nadmern\u00e9ho tepla; podobne blokov\u00e1 a pru\u017en\u00e1 povaha zrna oxidu hlinit\u00e9ho umo\u017e\u0148uje, aby sa v syst\u00e9moch tryskania pou\u017e\u00edvali obe formy m\u00e9di\u00ed spolo\u010dne na dosiahnutie maxim\u00e1lnej \u00fa\u010dinnosti.<\/p>\n
Karbid krem\u00edka je vysoko tepelne odoln\u00fd a zachov\u00e1va si svoje abraz\u00edvne vlastnosti aj pri zv\u00fd\u0161en\u00fdch teplot\u00e1ch, \u010do z neho rob\u00ed ide\u00e1lny materi\u00e1l na pou\u017eitie v \u017eiaruvzdorn\u00fdch a keramick\u00fdch materi\u00e1loch, ako aj v procesoch v\u00fdroby polovodi\u010dov.<\/p>\n
Zrn\u00e1 tejto p\u00edly, ostr\u00e9 ako britva, dok\u00e1\u017eu pri miernom tlaku \u013eahko prereza\u0165 sklo, plast, mramor, korok a drevovl\u00e1knit\u00e9 dosky strednej hustoty. Nane\u0161\u0165astie sa ich \u00fazky tvar pri pou\u017eit\u00ed na kovy alebo tvrd\u0161ie dreviny r\u00fdchlo opotrebuje.<\/p>\n
Oxid hlinit\u00fd je v\u00fdnimo\u010dne odoln\u00e9 br\u00fasivo, ktor\u00e9 dok\u00e1\u017ee odol\u00e1va\u0165 vy\u0161\u0161\u00edm teplot\u00e1m vznikaj\u00facim pri intenz\u00edvnom br\u00fasen\u00ed bez toho, aby do\u0161lo k jeho nenapravite\u013enej degrad\u00e1cii. Okrem toho jeho rovnov\u00e1ha medzi r\u00fdchlos\u0165ou rezania a kvalitou povrchovej \u00fapravy poskytuje optim\u00e1lne rie\u0161enia na br\u00fasenie pri projektoch obr\u00e1bania dreva so zlo\u017eit\u00fdmi detailmi alebo krivkami.<\/p>\n
Karbid krem\u00edka sa v porovnan\u00ed s oxidom hlinit\u00fdm m\u00f4\u017ee pochv\u00e1li\u0165 vynikaj\u00facou chemickou stabilitou, v\u010faka \u010domu je vynikaj\u00facou vo\u013ebou na otrysk\u00e1vanie agres\u00edvnych chemik\u00e1li\u00ed v prchav\u00fdch prostrediach, pri\u010dom je bezpe\u010dn\u00fd a odoln\u00fd vo\u010di upch\u00e1vaniu.<\/p>\n
Zrn\u00e1 karbidu krem\u00edka ostr\u00e9 ako britva \u013eahko rezaj\u00fa sklo, plast a drevovl\u00e1knit\u00e9 dosky strednej hustoty \u013eahk\u00fdm tlakom. S\u00fa odolnej\u0161ie ako br\u00fasne materi\u00e1ly z oxidu hlinit\u00e9ho, ale r\u00fdchlej\u0161ie sa opotreb\u00favaj\u00fa v d\u00f4sledku krehk\u00fdch hr\u00e1n, ktor\u00e9 sa r\u00fdchlej\u0161ie opotreb\u00favaj\u00fa.<\/p>\n
Krehk\u00fd \u010dierny karbid krem\u00edka je vynikaj\u00facim sp\u00f4sobom na br\u00fasenie drsn\u00fdch materi\u00e1lov alebo povrchov a ich le\u0161tenie do hladka, ako aj na odstra\u0148ovanie hrdze, odstra\u0148ovanie otrepov z kovov\u00fdch s\u00fa\u010diastok, renov\u00e1ciu dreven\u00fdch podl\u00e1h alebo medzi vrstvami farby v drev\u00e1rskych projektoch. Je obzvl\u00e1\u0161\u0165 vhodn\u00fd na vyhladzovanie hr\u00e1n.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide features sharper and harder abrasive grains than aluminum oxide, while remaining less durable. It cuts easily through glass, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","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":[3],"tags":[],"class_list":["post-74","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/74","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=74"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/74\/revisions"}],"predecessor-version":[{"id":75,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/74\/revisions\/75"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/media?parent=74"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/categories?post=74"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/tags?post=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}