Oxid hlinit\u00fd je ide\u00e1ln\u00edm materi\u00e1lem pro brou\u0161en\u00ed kov\u016f a d\u0159eva s vy\u0161\u0161\u00ed pevnost\u00ed v tahu, stejn\u011b jako pro brou\u0161en\u00ed n\u011bkter\u00fdch hou\u017eevnat\u00fdch ocel\u00ed, kter\u00e9 obsahuj\u00ed tvrd\u00e9 karbidy, jako je chrom, vanad nebo wolfram.<\/p>\n
Karbid k\u0159em\u00edku se m\u016f\u017ee pochlubit zrny ostr\u00fdmi jako b\u0159itva, kter\u00e1 \u0159e\u017eou sklo, plast a kov s minim\u00e1ln\u00edm tlakem, ale opot\u0159ebov\u00e1vaj\u00ed se rychleji ne\u017e oxid hlinit\u00fd. Jeho ostr\u00e1 hrana se bohu\u017eel tak\u00e9 rychle opot\u0159ebov\u00e1v\u00e1.<\/p>\n
Oxid hlinit\u00fd je jedn\u00edm z nejtvrd\u0161\u00edch a nejd\u00e9le odol\u00e1vaj\u00edc\u00edch brusn\u00fdch materi\u00e1l\u016f na trhu, m\u00e1 tvrdost 9 stup\u0148\u016f Mohsovy stupnice a nezne\u010di\u0161\u0165uje sklen\u011bn\u00e9, plastov\u00e9 a gumov\u00e9 povrchy. Oxid hlinit\u00fd je k dispozici v zrnitostech od 16 do 600 pro optim\u00e1ln\u00ed pou\u017eit\u00ed na t\u011bchto podkladech a nab\u00edz\u00ed del\u0161\u00ed \u017eivotnost ne\u017e karbid k\u0159em\u00edku, kter\u00fd m\u00e1 tvrd\u0161\u00ed a ost\u0159ej\u0161\u00ed strukturu zrn, je\u017e se rychleji opot\u0159ebov\u00e1vaj\u00ed.<\/p>\n
Brusn\u00e1 zrna oxidu hlinit\u00e9ho dob\u0159e funguj\u00ed na kovov\u00fdch, d\u0159ev\u011bn\u00fdch a lakovan\u00fdch povr\u0161\u00edch; od hrub\u00fdch a\u017e po mikrogritov\u00e9 v\u00fdrobky. K dispozici od hrub\u00e9 a\u017e po mikrozrnnou zrnitost a s r\u016fzn\u00fdmi p\u0159ipevn\u011bn\u00fdmi podlo\u017ekami. Hn\u011bd\u00e9 zrno oxidu hlinit\u00e9ho je \u0161iroce pou\u017e\u00edv\u00e1no d\u00edky sv\u00fdm polodrobiv\u00fdm vlastnostem, kter\u00e9 funguj\u00ed jak na m\u011bkk\u00fdch kovech, jako je mosaz, tak na d\u0159ev\u011bn\u00fdch povr\u0161\u00edch; cenov\u011b dostupn\u011bj\u0161\u00ed ne\u017e alternativy z karbidu k\u0159em\u00edku.<\/p>\n
B\u00edl\u00e1 a r\u016f\u017eov\u00e1 zrna brusiva z oxidu hlinit\u00e9ho maj\u00ed obvykle krat\u0161\u00ed \u017eivotnost ne\u017e jejich hn\u011bd\u00e9 prot\u011bj\u0161ky, ale mnohem l\u00e9pe se hod\u00ed pro procesy zahrnuj\u00edc\u00ed laky nebo hol\u00e9 kovy, proto\u017ee produkuj\u00ed m\u00e9n\u011b tepla, co\u017e umo\u017e\u0148uje \u00fa\u010dinn\u011bj\u0161\u00ed \u0159ez\u00e1n\u00ed m\u011bkk\u00fdch materi\u00e1l\u016f a z\u00e1rove\u0148 sni\u017euje riziko po\u0161kozen\u00ed opracov\u00e1van\u00fdch povrch\u016f teplem.<\/p>\n
Brusiva na b\u00e1zi oxidu hlinit\u00e9ho jsou obecn\u011b lep\u0161\u00ed volbou p\u0159i pr\u00e1ci na nerezov\u00fdch povr\u0161\u00edch d\u00edky sv\u00e9 odolnosti proti tvorb\u011b gumy a rychl\u00e9mu \u00fab\u011bru materi\u00e1lu. Karbid k\u0159em\u00edku m\u016f\u017ee vy\u017eadovat agresivn\u011bj\u0161\u00ed brusn\u00e9 procesy, kter\u00e9 mohou zp\u016fsobit p\u0159eh\u0159\u00e1t\u00ed a po\u0161kozen\u00ed opracov\u00e1van\u00e9ho substr\u00e1tu, co\u017e \u010din\u00ed jeho pou\u017eit\u00ed n\u00e1ro\u010dn\u011bj\u0161\u00edm.<\/p>\n
Brusivo z oxidu hlinit\u00e9ho je spolehliv\u011bj\u0161\u00ed a odoln\u011bj\u0161\u00ed ne\u017e karbid k\u0159em\u00edku, tak\u017ee si zachov\u00e1v\u00e1 \u0159ezn\u00e9 hrany po del\u0161\u00ed dobu. To pom\u00e1h\u00e1 minimalizovat opakovanou pr\u00e1ci p\u0159i brou\u0161en\u00ed hou\u017eevnat\u00fdch materi\u00e1l\u016f, jako je kov a k\u00e1men. Naproti tomu karbid k\u0159em\u00edku m\u00e1 k\u0159eh\u010d\u00ed zrna, kter\u00e1 se p\u0159i kontaktu s obt\u00ed\u017en\u00fdmi l\u00e1tkami rychleji rozpadaj\u00ed, co\u017e vede k m\u00e9n\u011b p\u0159esn\u00e9mu brou\u0161en\u00ed a pomalej\u0161\u00edmu odstra\u0148ov\u00e1n\u00ed materi\u00e1lu.<\/p>\n
Trvanlivost karbidu k\u0159em\u00edku lze tak\u00e9 ur\u010dit podle jeho chemick\u00e9 stability a elektrick\u00fdch vlastnost\u00ed, na rozd\u00edl od oxidu hlinit\u00e9ho, kter\u00fd velmi \u00fa\u010dinn\u011b vede elektrick\u00fd proud a je odoln\u00fd v\u016f\u010di korozi. Kv\u016fli t\u011bmto omezen\u00edm m\u016f\u017ee b\u00fdt karbid k\u0159em\u00edku n\u00e1ro\u010dn\u00fd p\u0159i opracov\u00e1n\u00ed n\u011bkter\u00fdch materi\u00e1l\u016f pomoc\u00ed elektrick\u00fdch brusek.<\/p>\n
Oxid hlinit\u00fd se vyzna\u010duje vynikaj\u00edc\u00ed kvalitou a dlouhou \u017eivotnost\u00ed a mimo\u0159\u00e1dnou tepelnou odolnost\u00ed, co\u017e z n\u011bj \u010din\u00ed vynikaj\u00edc\u00ed brusivo pro \u0159adu d\u0159evoobr\u00e1b\u011bc\u00edch aplikac\u00ed, jako je hrub\u00e9 brou\u0161en\u00ed nebo brou\u0161en\u00ed mezi jednotliv\u00fdmi vrstvami.<\/p>\n
Brusn\u00e9 listy z karbidu k\u0159em\u00edku jsou naopak vhodn\u011bj\u0161\u00ed pro dokon\u010dovac\u00ed pr\u00e1ce ne\u017e pro hrub\u00e9 brou\u0161en\u00ed, a to d\u00edky sv\u00fdm ost\u0159ej\u0161\u00edm a agresivn\u011bj\u0161\u00edm brusn\u00fdm vlastnostem a schopnosti pro\u0159ez\u00e1vat materi\u00e1ly s vysokou pevnost\u00ed v tahu. Karbid k\u0159em\u00edku lze tak\u00e9 pou\u017e\u00edt p\u0159i brou\u0161en\u00ed za mokra, nap\u0159\u00edklad p\u0159i le\u0161t\u011bn\u00ed kamenn\u00fdch a mramorov\u00fdch povrch\u016f a odstra\u0148ov\u00e1n\u00ed rzi z kovov\u00fdch sou\u010d\u00e1st\u00ed nebo p\u0159i renovaci d\u0159ev\u011bn\u00fdch podlah hrub\u0161\u00ed zrnitost\u00ed.<\/p>\n
Oxid hlinit\u00fd je zn\u00e1m\u00fd svou odolnost\u00ed a schopnost\u00ed odol\u00e1vat tepeln\u00e9 degradaci d\u00edky sv\u00e9 vynikaj\u00edc\u00ed tepeln\u00e9 vodivosti a chemick\u00e9 stabilit\u011b, co\u017e z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro trysk\u00e1n\u00ed abrazivn\u00edch materi\u00e1l\u016f, jako je \u017eula. D\u00edky jeho trvanlivosti m\u016f\u017ee prob\u011bhnout n\u011bkolik cykl\u016f trysk\u00e1n\u00ed, ne\u017e je pot\u0159eba jej vym\u011bnit, co\u017e pom\u00e1h\u00e1 \u0161et\u0159it n\u00e1klady i prostoje.<\/p>\n
Karbid k\u0159em\u00edku je na druhou stranu k\u0159eh\u010d\u00ed a rychleji se opot\u0159ebov\u00e1v\u00e1, co\u017e vede k m\u00e9n\u011b konzistentn\u00edmu v\u00fdkonu ne\u017e brusiva z oxidu hlinit\u00e9ho. Zat\u00edmco jeho zrna ostr\u00e1 jako b\u0159itva mohou fungovat p\u0159i \u0159ez\u00e1n\u00ed skla, plast\u016f a d\u0159evovl\u00e1knit\u00fdch desek st\u0159edn\u00ed hustoty p\u0159i pou\u017eit\u00ed lehk\u00e9ho tlaku, maj\u00ed probl\u00e9my s tvrd\u0161\u00edmi kovy nebo d\u0159evem, kter\u00e9 vy\u017eaduj\u00ed v\u011bt\u0161\u00ed tlak p\u0159i brou\u0161en\u00ed.<\/p>\n
Oxid hlinit\u00fd i karbid k\u0159em\u00edku dob\u0159e opracov\u00e1vaj\u00ed ocel, p\u0159i\u010dem\u017e oxid hlinit\u00fd l\u00e9pe zvl\u00e1d\u00e1 teplo vznikaj\u00edc\u00ed p\u0159i le\u0161t\u011bn\u00ed - proto je vhodn\u011bj\u0161\u00ed pro opracov\u00e1n\u00ed tvrd\u0161\u00edch materi\u00e1l\u016f, jako je nerezov\u00e1 ocel nebo titan.<\/p>\n
Oxid hlinit\u00fd je v boji proti rzi \u00fa\u010dinn\u011bj\u0161\u00ed ne\u017e karbid k\u0159em\u00edku, proto\u017ee karbid k\u0159em\u00edku m\u00e1 tendenci zanech\u00e1vat zbytky \u017eeleza a chromu, kter\u00e9 zt\u011b\u017euj\u00ed odstra\u0148ov\u00e1n\u00ed rzi; oxid hlinit\u00fd naproti tomu nekontaminuje a snadno odstra\u0148uje rez, ani\u017e by po\u0161kodil podkladov\u00e9 materi\u00e1ly.<\/p>\n
Brusn\u00e9 materi\u00e1ly z karbidu k\u0159em\u00edku a oxidu hlin\u00edku se v\u00fdrazn\u011b li\u0161\u00ed, pokud jde o pou\u017eit\u00ed pro ur\u010dit\u00e9 \u00fakoly; ka\u017ed\u00fd z nich je pro ur\u010dit\u00e9 \u00fakoly vhodn\u011bj\u0161\u00ed ne\u017e druh\u00fd. Karbid k\u0159em\u00edku nab\u00edz\u00ed tvrd\u00fd a dlouhotrvaj\u00edc\u00ed v\u00fdkon, zat\u00edmco oxid hlinit\u00fd nab\u00edz\u00ed m\u00e9n\u011b komplexn\u00ed \u0159e\u0161en\u00ed vhodn\u00e1 pro jemn\u011bj\u0161\u00ed aplikace nebo aplikace s n\u00edzkou pevnost\u00ed v tahu.<\/p>\n
Oxid hlinit\u00fd je \u010dasto volen pro keramick\u00e9 pr\u00e1ce d\u00edky sv\u00e9 \u00fa\u010dinnosti p\u0159i povrchov\u00e9 \u00faprav\u011b a le\u0161t\u011bn\u00ed, kdy vytv\u00e1\u0159\u00ed rovnom\u011brn\u00fd povrch s kulat\u00fdmi \u010d\u00e1sticemi, co\u017e zvy\u0161uje estetick\u00fd dojem. Krom\u011b toho se tento \u0161etrn\u00fd materi\u00e1l skv\u011ble hod\u00ed tak\u00e9 jako brusivo na sklen\u011bn\u00e9 a kovov\u00e9 p\u0159edm\u011bty, proto\u017ee je \u010dasem nepo\u0161kod\u00ed.<\/p>\n
Karbid k\u0159em\u00edku je naopak je\u0161t\u011b ost\u0159ej\u0161\u00ed a tvrd\u0161\u00ed materi\u00e1l ne\u017e oxid hlinit\u00fd. Jeho zrna ostr\u00e1 jako b\u0159itva lehk\u00fdm tlakem bez n\u00e1mahy \u0159e\u017eou sklo, plast a d\u0159evovl\u00e1knit\u00e9 desky st\u0159edn\u00ed hustoty, ale nedok\u00e1\u017eou tak snadno \u0159ezat tvrd\u00e9 d\u0159evo nebo kovy. Kv\u016fli sv\u00e9mu \u00fazk\u00e9mu tvaru a k\u0159ehkosti vy\u017eaduj\u00ed brusiva z karbidu k\u0159em\u00edku tak\u00e9 \u010dasto v\u00fdm\u011bnu po krat\u0161\u00edch otrysk\u00e1vac\u00edch cyklech nebo p\u0159i brou\u0161en\u00ed n\u00e1ro\u010dn\u011bj\u0161\u00edch materi\u00e1l\u016f.<\/p>\n
Karbid k\u0159em\u00edku i oxid hlinit\u00fd jsou vhodn\u00e9 pro obrobky z nerezov\u00e9 oceli, a\u010dkoli karbid k\u0159em\u00edku m\u00e1 v\u00fdhodu proti slitin\u00e1m odoln\u011bj\u0161\u00edm proti opot\u0159eben\u00ed obsahuj\u00edc\u00edm karbidy chromu, vanadu nebo wolframu. P\u0159i pr\u00e1ci s t\u011bmito kovy se bude pravd\u011bpodobn\u011b \u2018gumovat\u2019 rychleji ne\u017e jeho prot\u011bj\u0161ek Al2O3;<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum oxide is the ideal material to use when it comes to sanding metal and wood with higher tensile strengths, as well as grinding some tough steels that contain hard carbides such as chromium, vanadium or tungsten. Silicon carbide boasts razor-sharp grains that cut glass, plastic and metal with minimal pressure, yet wears down faster […]<\/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-238","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/238","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=238"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/238\/revisions"}],"predecessor-version":[{"id":239,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/238\/revisions\/239"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/media?parent=238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/categories?post=238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/tags?post=238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}