Oxid hlinit\u00fd a karbid krem\u00edka s\u00fa dva ob\u013e\u00faben\u00e9 br\u00fasne materi\u00e1ly pou\u017e\u00edvan\u00e9 na kovov\u00e9 a dreven\u00e9 v\u00fdrobky. V\u00fdber ide\u00e1lneho materi\u00e1lu z\u00e1vis\u00ed od potrieb aplik\u00e1cie a po\u017eadovan\u00e9ho typu povrchovej \u00fapravy.<\/p>\n
Karbid krem\u00edka sa m\u00f4\u017ee pochv\u00e1li\u0165 zrnami ostr\u00fdmi ako britva, ktor\u00e9 bez n\u00e1mahy prere\u017e\u00fa tvrd\u00e9 kovy, drevo a sklenen\u00e9 povrchy s minim\u00e1lnou silou a s\u00fa vhodn\u00e9 aj na nekovov\u00e9 materi\u00e1ly alebo materi\u00e1ly s n\u00edzkou pevnos\u0165ou v \u0165ahu.<\/p>\n
Oxid hlinit\u00fd je jedn\u00fdm z najvyh\u013ead\u00e1vanej\u0161\u00edch br\u00fasnych materi\u00e1lov, ktor\u00fd je zn\u00e1my svojou dlhou \u017eivotnos\u0165ou a v\u0161estrannos\u0165ou v r\u00f4znych materi\u00e1loch. Vynik\u00e1 r\u00fdchlym odstra\u0148ovan\u00edm bez po\u0161kodenia povrchu - ide\u00e1lna vo\u013eba, ke\u010f ide o \u010das.<\/p>\n
Toto br\u00fasne zrno sa \u010dasto vol\u00ed pri v\u00fdrobe r\u00f4znych v\u00fdrobkov, ako s\u00fa napr\u00edklad tryskacie prostriedky, br\u00fasne kot\u00fa\u010de a br\u00fasne papiere. Toto zrno je k dispoz\u00edcii v r\u00f4znych zrnitostiach od 40 do 400 a m\u00f4\u017ee sa tie\u017e distribuova\u0165 mechanicky alebo elektrostaticky, aby sa u\u013eah\u010dila jeho distrib\u00facia.<\/p>\n
Karbid krem\u00edka je extr\u00e9mne tvrd\u00e9, ostr\u00e9 br\u00fasne zrno, ktor\u00e9 sa vyr\u00e1ba karbotermickou redukciou. Na Mohsovej stupnici tvrdosti m\u00e1 hodnotu 9,5 - je tvrd\u0161\u00ed ako diamant aj karbid b\u00f3ru, ale pri ve\u013ekom za\u0165a\u017een\u00ed sa \u013eahko rozpad\u00e1.<\/p>\n
Skl\u00e1rsky, keramick\u00fd priemysel a priemysel v\u00fdkonovej elektroniky sa vo ve\u013ekej miere spoliehaj\u00fa na mlet\u00fd karbid krem\u00edka ako zlo\u017eku na br\u00fasenie, zatia\u013e \u010do jeho tepeln\u00e9 vlastnosti ho robia neocenite\u013en\u00fdm z h\u013eadiska izola\u010dn\u00fdch vlastnost\u00ed. \u017diaruvzdorn\u00e9 materi\u00e1ly obsahuj\u00face mlet\u00fd karbid krem\u00edka maj\u00fa tepelnoizola\u010dn\u00e9 vlastnosti, v\u010faka ktor\u00fdm s\u00fa vhodn\u00e9 na izol\u00e1ciu substr\u00e1tov a komponentov od prestupu tepla, zatia\u013e \u010do sa \u010dasto mie\u0161a s in\u00fdmi br\u00fasnymi zrnami na v\u00fdrobu br\u00fasnych kot\u00fa\u010dov a br\u00fasnych papierov - a v niektor\u00fdch aplik\u00e1ci\u00e1ch dokonca aj n\u00e1strojov na mieru, ktor\u00e9 s\u00fa prisp\u00f4soben\u00e9 \u0161peci\u00e1lne na konkr\u00e9tne \u00falohy!<\/p>\n
Br\u00fasny pr\u00e1\u0161ok z oxidu hlinit\u00e9ho je ekonomick\u00e9, dlhotrvaj\u00face br\u00fasivo, ktor\u00e9 pon\u00faka v\u0161estrann\u00e9 pou\u017eitie, tak\u017ee je ide\u00e1lnym rie\u0161en\u00edm pre prev\u00e1dzky s obmedzen\u00fdm rozpo\u010dtom, ktor\u00e9 potrebuj\u00fa ekonomick\u00e9 br\u00fasivo, ktor\u00e9 je v\u00fdkonn\u00e9 aj po opakovanom pou\u017eit\u00ed.<\/p>\n
Karbid krem\u00edka je ove\u013ea tvrd\u0161\u00ed a ostrej\u0161\u00ed ako oxid hlinit\u00fd, tak\u017ee je vhodn\u00fd na materi\u00e1ly s ni\u017e\u0161ou pevnos\u0165ou v \u0165ahu alebo nekovov\u00e9 predmety, ako s\u00fa sklo alebo plast, drevovl\u00e1knit\u00e9 dosky strednej hustoty alebo drevovl\u00e1knit\u00e9 dosky strednej hustoty. Bohu\u017eia\u013e by sa v\u0161ak tento materi\u00e1l nemal pou\u017e\u00edva\u0165 na kovy alebo ve\u013emi tvrd\u00e9 dreviny kv\u00f4li ich tvrd\u00e9mu povrchu.<\/p>\n
Taven\u00fd oxid hlinit\u00fd s vysok\u00fdm obsahom chr\u00f3mu je \u010fal\u0161\u00edm \u0161iroko pou\u017e\u00edvan\u00fdm br\u00fasnym materi\u00e1lom, ktor\u00fd pon\u00faka hladk\u00fd povrch bez toho, aby produkoval nadmern\u00e9 teplo alebo vytv\u00e1ral trenie. Zatia\u013e \u010do hlin\u00edkov\u00e9 povrchy m\u00f4\u017eu ma\u0165 prospech z pou\u017eitia samotn\u00e9ho tohto br\u00fasiva, niektor\u00ed profesion\u00e1li sa rozhodn\u00fa strieda\u0165 biely oxid hlinit\u00fd a taven\u00fd oxid hlinit\u00fd po\u010das procesu br\u00fasenia, aby dosiahli najlep\u0161ie v\u00fdsledky.<\/p>\n
Ak chcete r\u00fdchlo zisti\u0165, ak\u00fd typ br\u00fasneho materi\u00e1lu obsahuje v\u00e1\u0161 br\u00fasny papier, pozrite sa na prv\u00fd p\u00edsmenov\u00fd k\u00f3d na jeho \u0161t\u00edtku: oxid hlinit\u00fd je reprezentovan\u00fd p\u00edsmenom A, zatia\u013e \u010do karbid krem\u00edka p\u00edsmenom C. Zvy\u0161ok tohto k\u00f3du poskytuje \u010fal\u0161ie podrobnosti t\u00fdkaj\u00face sa zrnitosti a \u010fal\u0161\u00edch \u0161pecifick\u00fdch vlastnost\u00ed pou\u017eit\u00e9ho materi\u00e1lu; tieto inform\u00e1cie m\u00f4\u017eete z\u00edska\u0165 aj online - napr\u00edklad produkty s tryskac\u00edmi m\u00e9diami zobrazuj\u00fa tieto inform\u00e1cie tu.<\/p>\n
Br\u00fasne zrn\u00e1 z oxidu hlinit\u00e9ho a karbidu krem\u00edka mo\u017eno pou\u017ei\u0165 na r\u00f4zne aplik\u00e1cie tryskania vr\u00e1tane leptania, odstra\u0148ovania n\u00e1terov, povrchovej \u00fapravy, sp\u00e1jania kovu s keramikou a le\u0161tenia. Karbid krem\u00edka je zvy\u010dajne tvrd\u0161\u00ed a ostrej\u0161\u00ed ako oxid hlinit\u00fd; oba typy sa m\u00f4\u017eu pou\u017e\u00edva\u0165 pri suchom alebo mokrom tryskan\u00ed a pri nekovov\u00fdch materi\u00e1loch alebo materi\u00e1loch s n\u00edzkou pevnos\u0165ou v \u0165ahu.<\/p>\n
Br\u00fasne zrn\u00e1 oxidu hlinit\u00e9ho a karbidu krem\u00edka pozost\u00e1vaj\u00fa z kry\u0161t\u00e1lov. Oxid hlinit\u00fd sa sklad\u00e1 z at\u00f3mov kysl\u00edka a hlin\u00edka, zatia\u013e \u010do karbid krem\u00edka obsahuje at\u00f3my uhl\u00edka a krem\u00edka. Hoci oba typy mo\u017eno z\u00edska\u0165 z pr\u00edrody na pou\u017eitie ako br\u00fasivo, tov\u00e1rensk\u00e1 v\u00fdroba zvy\u010dajne zaru\u010duje lep\u0161ie v\u00fdsledky.<\/p>\n
\u010cierny karbid krem\u00edka (SiC) sa \u0161iroko vyu\u017e\u00edva v r\u00f4znych priemyseln\u00fdch odvetviach vr\u00e1tane v\u00fdroby br\u00fasnych kot\u00fa\u010dov, kalov a \u017eiaruvzdorn\u00fdch materi\u00e1lov. SiC vynik\u00e1 t\u00fdm, \u017ee sa pri pou\u017e\u00edvan\u00ed m\u00f4\u017ee rozpadn\u00fa\u0165 na ostr\u00e9 \u010dastice, tak\u017ee ho mo\u017eno pou\u017ei\u0165 viackr\u00e1t ako kamenn\u00e9 bubny.<\/p>\n
SiC m\u00f4\u017ee ma\u0165 aj podobu rub\u00ednov\u00fdch a zaf\u00edrov\u00fdch drahokamov, ktor\u00fdch jedine\u010dn\u00e9 farby s\u00fa v\u00fdsledkom drobn\u00fdch ne\u010dist\u00f4t v ich zlo\u017een\u00ed. Pred\u00e1vaj\u00fa sa sklovito viazan\u00e9 ako nekontaminuj\u00face montovan\u00e9 kamene na pr\u00edpravu kovovo-keramick\u00fdch zliatin pre aplik\u00e1cie na sp\u00e1janie porcel\u00e1nu, ako aj na odstra\u0148ovanie zvy\u0161kov z liatinov\u00fdch povrchov na vytv\u00e1ranie hladk\u00fdch povrchov\u00fdch \u00faprav.<\/p>\n
Karbid krem\u00edka a oxid hlinit\u00fd sa vo ve\u013ekej miere pou\u017e\u00edvaj\u00fa na br\u00fasenie, br\u00fasenie a le\u0161tenie r\u00f4znych materi\u00e1lov vr\u00e1tane kovov. Na to, ktor\u00e9 br\u00fasivo sa najlep\u0161ie hod\u00ed pre dan\u00fa aplik\u00e1ciu, m\u00e1 vplyv mnoho faktorov, ako napr\u00edklad tvrdos\u0165, trvanlivos\u0165, kompatibilita s materi\u00e1lom alebo vlastnosti tvrdosti\/trvanlivosti - znalos\u0165 t\u00fdchto rozdielov je nevyhnutn\u00e1 pri optimaliz\u00e1cii v\u00fdberu a v\u00fdkonu ak\u00e9hoko\u013evek br\u00fasiva.<\/p>\n
Oxid hlinit\u00fd sa dod\u00e1va v r\u00f4znych zrnitostiach od hrubej po jemn\u00fa \u0161trukt\u00faru a v porovnan\u00ed s in\u00fdmi br\u00fasnymi materi\u00e1lmi m\u00e1 relat\u00edvne dlh\u00fa \u017eivotnos\u0165. Okrem toho je jeho produkcia tepla v\u0161eobecne zn\u00ed\u017een\u00e1, v\u010faka \u010domu je vhodn\u00fd na pou\u017eitie na drevo a laky, ako aj na nekontaminuj\u00faci tit\u00e1n, ktor\u00fd sa be\u017ene vyskytuje v leteck\u00fdch aplik\u00e1ci\u00e1ch.<\/p>\n
Karbid krem\u00edka je tvrd\u0161\u00ed a odolnej\u0161\u00ed ako oxid hlinit\u00fd, tak\u017ee je vhodn\u00fd na rezanie a br\u00fasenie. Okrem toho je v\u010faka svojej tepelnej vodivosti a chemickej stabilite vhodn\u00fd na aplik\u00e1cie citliv\u00e9 na teplo.<\/p>\n
Obe br\u00fasiv\u00e1 s\u00fa schopn\u00e9 pracova\u0165 s v\u00e4\u010d\u0161inou materi\u00e1lov, hoci niektor\u00e9 podklady na ne reaguj\u00fa priaznivej\u0161ie ako in\u00e9. Karbid krem\u00edka m\u00e1 tendenciu pracova\u0165 najlep\u0161ie na kovoch, zatia\u013e \u010do oxid hlinit\u00fd m\u00e1 tendenciu pracova\u0165 najlep\u0161ie na dreve. Karbid krem\u00edka m\u00e1 lep\u0161iu tepeln\u00fa odolnos\u0165 na pou\u017eitie pri br\u00fasen\u00ed pod vy\u0161\u0161\u00edm tlakom a z\u00e1rove\u0148 poskytuje lep\u0161iu kvalitu povrchovej \u00fapravy; oxid hlinit\u00fd v\u0161ak zvy\u010dajne poskytuje ni\u017e\u0161ie n\u00e1klady pri podobnej povrchovej \u00faprave ako karbid krem\u00edka.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum oxide and silicon carbide are two popular abrasive materials used on metal and wood products. Selecting the ideal material […]<\/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-94","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\/94","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=94"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/94\/revisions"}],"predecessor-version":[{"id":95,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/94\/revisions\/95"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/media?parent=94"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/categories?post=94"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/tags?post=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}