Zrno karbidu krem\u00edka m\u00e1 ostr\u00e9, tvrd\u00e9 zrn\u00e1, ktor\u00e9 \u013eahko rez\u00fa rohy a hroty na r\u00fdchle rezy za v\u00fdhodn\u00fa cenu v porovnan\u00ed so zrnom diamantu alebo karbidu b\u00f3ru.<\/p>\n
Prach karbidu krem\u00edka m\u00f4\u017ee by\u0165 pri priamom vdychovan\u00ed \u0161kodliv\u00fd. Preto by sa mali pou\u017e\u00edva\u0165 vhodn\u00e9 ochrann\u00e9 pom\u00f4cky, ako s\u00fa masky, a \u010dinnosti s t\u00fdmto abraz\u00edvom by sa mali vykon\u00e1va\u0165 v dobre vetran\u00fdch priestoroch.<\/p>\n
Karbid krem\u00edka (SiC) vynik\u00e1 medzi br\u00fasnymi materi\u00e1lmi ako jeden z najtvrd\u0161\u00edch materi\u00e1lov. S tvrdos\u0165ou 9,5 pod\u013ea Mohsa konkuruje SiC diamantu a kubick\u00e9mu nitridu b\u00f3ru ako extr\u00e9mne tvrd\u00fd materi\u00e1l na br\u00fasenie s vynikaj\u00facimi vlastnos\u0165ami odolnosti vo\u010di chemik\u00e1li\u00e1m a oxid\u00e1cii.<\/p>\n
V\u010faka svojej tvrdosti je SiC ob\u013e\u00fabenou vo\u013ebou na br\u00fasenie materi\u00e1lov, ktor\u00e9 vykazuj\u00fa ni\u017e\u0161iu \u0165a\u017enos\u0165 a pevnos\u0165 v \u0165ahu, ako napr\u00edklad keramika. Okrem toho maj\u00fa br\u00fasiv\u00e1 SiC v\u00e4\u010d\u0161iu trvanlivos\u0165 ako ich n\u00e1protivky z oxidu hlinit\u00e9ho a hned\u00e9ho taven\u00e9ho oxidu hlinit\u00e9ho.<\/p>\n
Zelen\u00fd SiC sa sklad\u00e1 z at\u00f3mov krem\u00edka a uhl\u00edka usporiadan\u00fdch vo vrstevnatej \u0161trukt\u00fare krem\u00edkovo-uhl\u00edkov\u00fdch v\u00e4zieb usporiadan\u00fdch tetraedricky. Z toho vypl\u00fdva jeho extr\u00e9mna tvrdos\u0165, ktor\u00e1 je takmer dvojn\u00e1sobne vy\u0161\u0161ia ako tvrdos\u0165 hned\u00e9ho taven\u00e9ho oxidu hlinit\u00e9ho. Okrem toho je tento materi\u00e1l v\u010faka svojej vynikaj\u00facej tepelnej stabilite, schopnosti odol\u00e1va\u0165 opotrebovaniu a odolnosti vo\u010di kysl\u00e9mu leptaniu mimoriadne \u017eiadan\u00fd na pou\u017eitie.<\/p>\n
\u010cierne m\u00e9dium z karbidu krem\u00edka sa m\u00f4\u017ee premy\u0165 kyselinou v dvoch krokoch, aby sa zabr\u00e1nilo degrad\u00e1cii a zlep\u0161ilo sa rozdelenie ve\u013ekosti gran\u00fal, v\u010faka \u010domu je \u00fa\u010dinnej\u0161ie ako hned\u00fd taven\u00fd oxid hlinit\u00fd z h\u013eadiska v\u00fdkonu tryskania a tvaru \u010dast\u00edc.<\/p>\n
Spolo\u010dnos\u0165 Salem Fabrication Supply je hrd\u00e1 na to, \u017ee pon\u00faka vysokokvalitn\u00e9 br\u00fasne materi\u00e1ly, ako je n\u00e1\u0161 \u010dierny karbid krem\u00edka. Ka\u017ed\u00fd kus je pred zaraden\u00edm do na\u0161ej ponuky m\u00e9di\u00ed ru\u010dne kontrolovan\u00fd z h\u013eadiska kvality, spracovania a konzistentnosti triedy. Ide\u00e1lne na br\u00fasenie drah\u00fdch kame\u0148ov, mikroleptanie skla a grav\u00edrovanie kovov\/kame\u0148ov.<\/p>\n
Zrnitos\u0165 karbidu krem\u00edka m\u00e1 pribli\u017en\u00fa tvrdos\u0165 pod\u013ea Mohsovej stupnice 9,5, \u010d\u00edm sa z h\u013eadiska tvrdosti rad\u00ed len za diamant, a je tak jedn\u00fdm z najtvrd\u0161\u00edch br\u00fasnych materi\u00e1lov dostupn\u00fdch na trhu. Nielen to, ale jeho trvanlivos\u0165 zah\u0155\u0148a aj n\u00edzku tepeln\u00fa roz\u0165a\u017enos\u0165 a vysok\u00fa tepeln\u00fa odolnos\u0165, v\u010faka \u010domu je vhodn\u00fd na br\u00fasenie tvrd\u00fdch materi\u00e1lov, ako je bet\u00f3n.<\/p>\n
V\u00fdrobcovia pou\u017e\u00edvaj\u00fa na otrysk\u00e1vanie zrn\u00e1 karbidu krem\u00edka s r\u00f4znou ve\u013ekos\u0165ou zrna, od jemn\u00fdch zrniek, ktor\u00e9 vytv\u00e1raj\u00fa hladk\u00e9 povrchy, a\u017e po hrub\u00e9, ktor\u00e9 odstra\u0148uj\u00fa materi\u00e1l pomal\u0161ie. Karbid krem\u00edka sl\u00fa\u017ei aj ako tryskacie m\u00e9dium pou\u017e\u00edvan\u00e9 \u0161pecializovan\u00fdmi strojmi, ktor\u00e9 ho vysokou r\u00fdchlos\u0165ou vystre\u013euj\u00fa po tvrd\u00fdch povrchoch na odstr\u00e1nenie hrdze alebo ne\u010dist\u00f4t a pr\u00edpravu povrchov na lakovanie.<\/p>\n
Piesok, oxid kremi\u010dit\u00fd a materi\u00e1ly na b\u00e1ze oxidu hlinit\u00e9ho, ako je oxid hlinit\u00fd, sa m\u00f4\u017eu pou\u017e\u00edva\u0165 pri tryskan\u00ed, ale ich \u0161trukt\u00fara b\u00fdva pr\u00edli\u0161 rovnomern\u00e1 a hladk\u00e1 na \u00fa\u010dinn\u00e9 obrusovanie horn\u00edn po\u010das bubnovania. Kvalitn\u00e1 drvina z karbidu krem\u00edka vynik\u00e1 t\u00fdm, \u017ee sa dod\u00e1va v hranat\u00fdch \u010dasticiach s ostr\u00fdmi hranami a hrotmi - na rozdiel od pl\u00e1\u017eov\u00fdch, rie\u010dnych a vetrom naviatych pieskov, ktor\u00e9 maj\u00fa gu\u013eatej\u0161ie \u010dastice, ktor\u00e9 po\u010das tejto f\u00e1zy le\u0161tiacich sekvenci\u00ed s rota\u010dn\u00fdmi bubnami neabrazuj\u00fa horniny \u013eahko. Na porovnanie, kvalitn\u00fd \u0161trk z karbidu krem\u00edka m\u00e1 hranat\u00e9 \u010dastice s ostr\u00fdmi hranami v porovnan\u00ed s gu\u013eatej\u0161\u00edmi \u010dasticami, ktor\u00e9 sa nach\u00e1dzaj\u00fa inde, ako s\u00fa pl\u00e1\u017eov\u00e9, rie\u010dne a naviatych pieskov; na rozdiel od pl\u00e1\u017eov\u00fdch, rie\u010dnych a naviatych pieskov, ktor\u00e9 sa \u0165a\u017e\u0161ie le\u0161tia pri le\u0161ten\u00ed horn\u00edn pomocou rota\u010dn\u00fdch bubnov. Naopak, na tejto fotografii je zobrazen\u00fd netrieden\u00fd \u0161trk z karbidu krem\u00edka 60\/90, ktor\u00fd by \u00fa\u010dinne fungoval pri efekt\u00edvnej\u0161om obrusovan\u00ed horn\u00edn po\u010das troch krokov le\u0161tenia v r\u00e1mci trojstup\u0148ovej sekvencie le\u0161tenia horn\u00edn pomocou rota\u010dn\u00e9ho bubna.<\/p>\n
Karbid krem\u00edka je jedn\u00fdm z cenovo najefekt\u00edvnej\u0161\u00edch br\u00fasnych materi\u00e1lov na trhu, ktor\u00fd sa pou\u017e\u00edva vo v\u00fdrobkoch, ako s\u00fa br\u00fasne kot\u00fa\u010de, br\u00fasne papiere, br\u00fasky na no\u017ee a br\u00fasky na no\u017ee. Okrem toho sa karbid krem\u00edka vyu\u017e\u00edva aj na pieskovanie, rezanie vodn\u00fdm l\u00fa\u010dom a in\u00e9 priemyseln\u00e9 procesy.<\/p>\n
Karbid krem\u00edka na predaj ako brusivo sa vyr\u00e1ba z miner\u00e1lu moissanitu, ktor\u00fd sa nach\u00e1dza v pr\u00edrode. V\u0161etky komer\u010dn\u00e9 br\u00fasiv\u00e1 z karbidu krem\u00edka pred\u00e1van\u00e9 ako brusivo sa vyr\u00e1baj\u00fa taven\u00edm ropn\u00e9ho koksu a piesku v elektrickej peci pred ich rozdrven\u00edm a trieden\u00edm na r\u00f4zne ve\u013ekosti, aby sa vytvorili \"zrn\u00e1\" a pr\u00e1\u0161ky, ktor\u00e9 sa potom m\u00f4\u017eu pou\u017ei\u0165 v aplik\u00e1ci\u00e1ch, ako je pieskovanie, br\u00fasenie, le\u0161tenie a in\u00e9 formy br\u00fasenia.<\/p>\n
Br\u00fasne zrn\u00e1 karbidu krem\u00edka maj\u00fa hranat\u00e9 \u010dastice s ostr\u00fdmi hrotmi a hranami, v\u010faka \u010domu s\u00fa vysoko \u00fa\u010dinn\u00e9 pri rezan\u00ed, br\u00fasen\u00ed a le\u0161ten\u00ed, ke\u010f sa zachytia medzi kame\u0148mi v bubnovom valci. Okrem toho je karbid krem\u00edka ve\u013emi cenovo dostupn\u00fd - zvy\u010dajne stoj\u00ed menej ako dol\u00e1r za kilogram, ke\u010f sa pred\u00e1va balen\u00fd a trieden\u00fd ako kone\u010dn\u00fd v\u00fdrobok.<\/p>\n
Trs\u00e1tka pou\u017e\u00edvaj\u00fa amat\u00e9rski aj profesion\u00e1lni remeseln\u00edci na le\u0161tenie drah\u00fdch kame\u0148ov, odstra\u0148ovanie otrepov z kovov\u00fdch \u010dast\u00ed a in\u00fdch tvrd\u00fdch materi\u00e1lov do hlad\u0161ieho povrchu. Pri pou\u017e\u00edvan\u00ed rota\u010dn\u00fdch bubnov sa zvy\u010dajne prid\u00e1vaj\u00fa dve polievkov\u00e9 ly\u017eice \u0161trku na kilogram tromfovan\u00e9ho kame\u0148a; pri pou\u017e\u00edvan\u00ed vibra\u010dn\u00fdch bubnov sa tento krok zvy\u010dajne vykon\u00e1va ako krok 2. Okrem toho, ke\u010f\u017ee sa vyzna\u010duje hrubou br\u00fasnou \u010dinnos\u0165ou, je vynikaj\u00facou vo\u013ebou na pr\u00e1cu s drsn\u00fdmi materi\u00e1lmi.<\/p>\n
Karbid krem\u00edka sa d\u00e1 vyu\u017ei\u0165 v mnoh\u00fdch umeleck\u00fdch a remeseln\u00fdch aplik\u00e1ci\u00e1ch, pri\u010dom sa vyu\u017e\u00edva jeho tvrdos\u0165 na vyhladenie povrchov na ma\u013eovanie alebo kone\u010dn\u00fa \u00fapravu alebo na odstr\u00e1nenie nedokonalost\u00ed povrchov, ktor\u00e9 je potrebn\u00e9 vyhladi\u0165 pred ma\u013eovan\u00edm alebo kone\u010dnou \u00fapravou. Okrem toho karbid krem\u00edka sl\u00fa\u017ei ako surovina na v\u00fdrobu modernej keramiky a \u017eiaruvzdorn\u00fdch materi\u00e1lov.<\/p>\n
Karbid krem\u00edka sa dod\u00e1va v \u010diernych aj zelen\u00fdch odtie\u0148och a \u010dasto sa pou\u017e\u00edva na v\u00fdrobu br\u00fasnych materi\u00e1lov s povrchovou \u00fapravou, ako je br\u00fasny papier alebo br\u00fasne kot\u00fa\u010de. Okrem toho sa tento materi\u00e1l nach\u00e1dza aj v n\u00e1strojoch, kot\u00fa\u010doch a priemyseln\u00fdch rezac\u00edch zariadeniach; jeho zrnitos\u0165 mo\u017eno dokonca n\u00e1js\u0165 na rezanie kovov\u00fdch povrchov, ako je keramika, ako aj tvrd\u00fdch nekovov\u00fdch materi\u00e1lov, napr\u00edklad \u017euly. Jeho v\u0161estrannos\u0165 sa roz\u0161iruje aj na v\u00fdrobn\u00e9 n\u00e1stroje, ako aj na priemyseln\u00e9 rezacie zariadenia - jeho pou\u017eitie je ve\u013emi \u0161irok\u00e9, od rezania kovov, keramiky alebo ak\u00fdchko\u013evek tvrd\u00fdch nekovov\u00fdch materi\u00e1lov a\u017e po v\u00fdrobn\u00e9 n\u00e1stroje, br\u00fasne kot\u00fa\u010de br\u00fasne kot\u00fa\u010de pou\u017e\u00edvan\u00e9 v priemyseln\u00fdch rezac\u00edch zariadeniach v\u00fdrobn\u00e9 n\u00e1stroje v\u00fdrobn\u00e9 n\u00e1stroje br\u00fasne kot\u00fa\u010de br\u00fasne kot\u00fa\u010de m\u00f4\u017eu reza\u0165 a br\u00fasi\u0165 kovov\u00e9 povrchy a z\u00e1rove\u0148 reza\u0165 kovov\u00e9 materi\u00e1ly, ako je keramika, ako aj tvrd\u00e9 nekovov\u00e9 materi\u00e1ly, ako je \u017eula.<\/p>\n
Karbid krem\u00edka je neuverite\u013ene odoln\u00fd materi\u00e1l, napriek tomu m\u00e1 ur\u010dit\u00e9 nev\u00fdhody, ktor\u00e9 by ste mali zv\u00e1\u017ei\u0165 pred jeho v\u00fdberom na bubnovanie alebo br\u00fasenie. Neodpor\u00fa\u010da sa na aplik\u00e1cie, ktor\u00e9 si vy\u017eaduj\u00fa dlhotrvaj\u00face a konzistentn\u00e9 br\u00fasenie, ako je odstra\u0148ovanie hrdze, renov\u00e1cia dreven\u00fdch podl\u00e1h a \u010distenie sklenen\u00fdch povrchov - v tak\u00fdchto pr\u00edpadoch m\u00f4\u017ee pou\u017eitie diamantov\u00fdch br\u00fasnych kot\u00fa\u010dov pon\u00faknu\u0165 v\u00e4\u010d\u0161iu presnos\u0165.<\/p>\n
Medzi hlavn\u00e9 nev\u00fdhody br\u00fasiva z karbidu krem\u00edka patr\u00ed jeho krehkos\u0165 a potenci\u00e1lne riziko ohrozenia zdravia v d\u00f4sledku vystavenia prachu pri br\u00fasen\u00ed alebo br\u00fasen\u00ed, \u010do si vy\u017eaduje nosenie ochrannej masky pri pr\u00e1ci v dobre vetran\u00fdch priestoroch. Hoci samotn\u00fd prach nie je toxick\u00fd, bez spr\u00e1vneho zaobch\u00e1dzania by mohlo d\u00f4js\u0165 k jeho vd\u00fdchnutiu.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide grit features sharp, hard grains that easily cut corners and points for quick cuts at an economical cost compared to diamond or boron carbide grit. Silicon carbide dust can be harmful if inhaled directly. Therefore, appropriate protective equipment such as masks should be utilized and activities involving this abrasive should take place 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-210","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/comments?post=210"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/210\/revisions"}],"predecessor-version":[{"id":211,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/210\/revisions\/211"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/media?parent=210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/categories?post=210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/tags?post=210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}