Dawb aluminium oxideyog ib hom khoom siv dag zog, xim dawb, feem ntau muaj txhuas oxide, thiab ib qho me me ntawm cov hlau oxide, silicon oxide thiab lwm yam khoom xyaw. Dawb aluminium oxide muaj ib qho kev ntxhib los mos, siab hardness, thiab ntse-angled hais. Nws yog tsim rau kev tsim cov ceramics, resin-bonded abrasives, sib tsoo, polishing, sandblasting, precision casting, thiab lwm yam. Dawb aluminium oxide crystals yog me me thiab cuam tshuam-resistant. Lawv raug crushed los ntawm tus kheej-sib tsoo tshuab. Feem ntau ntawm cov khoom yog spherical hais. Qhov saum npoo yog qhuav thiab huv si, thiab nws yog ib qho yooj yim rau khi nrog binders. Nws yog tsim rau ntau yam khoom siv high-end, crafts lossis hardware khoom. Qhov saum npoo yog dawb thiab tsis muaj impurities tom qab sandblasting, tshem tawm cov teeb meem ntawm kev ntxuav.
Tom qab kev txhim kho txuas ntxiv thiab kev sim kev lag luam, cov hmoov dawb aluminium oxide tau lees paub los ntawm cov neeg siv khoom. Dawb aluminium oxide muaj siab hardness, zoo tus kheej-sharpening, thiab zoo heev sib tsoo thiab polishing kev ua tau zoo. Nyob rau tib lub sijhawm, tom qab kev txhim kho kev tsim kho, tus nqi tsim khoom tau txo qis me ntsis. Nyob rau hauv cov txheej txheem hluav taws xob melting ntawm dawb aluminium oxide, nws yuav nyuaj vim cov tshuaj tiv thaiv, homogeneous polycrystalline transformation, recrystallization, thiab co-solution, tab sis nws yog tsuas yog ua tiav los ntawm qhov loj deg cheeb tsam thiab siab zog ntawm cov hmoov. Thaum lub sij hawm cov txheej txheem ntawm cov hmoov, ntau yam lattice defects tshwm rau ntawm nws nto thiab sab hauv.
Dawb aluminium oxide yog ua los ntawm cov khoom zoo txhuas oxide hmoov ua raw khoom, refined thiab crystallized los ntawm hluav taws xob melting. Nws muaj purity siab, zoo tus kheej-sharpening, acid thiab alkali corrosion tsis kam, kub tsis kam, thiab ruaj khov thermal ua haujlwm; nws hardness yog me ntsis siab dua li cov xim av corundum, nws toughness yog me ntsis qis, nws muaj peev xwm sib tsoo muaj zog, nws kub tiam me me, thiab nws efficiency siab; Nws tuaj yeem ua rau cov cuab yeej abrasive, uas tuaj yeem siv rau kev sib tsoo zoo-grained abrasives xws li cov pa roj carbon steel, high-speed steel thiab stainless hlau, thiab tseem tuaj yeem siv rau precision casting thiab cov ntaub ntawv siab heev refractory.
