Qhov txawv ntawm Dawb thiab Brown Corundum yog dab tsi? Puas yog Dawb Corundum Qhov Hardness Zoo li Brown Corundum?

Dawb corundum thiab xim av corundum yog ib hom corundum, tuaj yeem siv ua abrasive, tab sis txawv daim ntawv thov teb xaiv txawv corundum. Dab tsi yog qhov txawv ntawm xim av thiab dawb corundum? Nws tau hais tias qhov hardness ntawm dawb corundum thiab xim av corundum yog siab heev, yog li qhov twg ntawm lawv ob yam khoom yog siab hardness? Nov yog ib qho me me rau txhua tus los txheeb xyuas:
Xim av corundum abrasive, lub particle yog tsim los ntawm ib tug siv lead ua, muaj ib tug zoo multi-ntug txiav ntug, siab hardness thiab siab toughness, sib tsoo muaj peev xwm, sib tsoo tsawg tshav kub, qhov tsis zoo yog tias cov nqi ntau lawm, cov zis yog tsawg, yog li ntawd. tus nqi siab. Dawb corundum abrasive kuj yog ib qho crystalline compound nrog me ntsis qis hardness, finer siv lead ua loj thiab zoo hnav tsis kam.

Lub hardness ntawm dawb corundum abrasive yog me ntsis siab dua li cov xim av corundum, tab sis lub toughness tsis zoo. Nws yog ib qho yooj yim los txiav rau hauv lub workpiece thaum sib tsoo, zoo tus kheej ntse, tsawg tshav kub, muaj zog sib tsoo muaj peev xwm thiab high efficiency. Chrome corundum abrasives yog nws cov derivatives.

Xim av corundum abrasive feem ntau yog tsim los ntawm Al2O3, nruab nrab hardness, toughness, ntse hais, kuj tsis tshua muaj nqi, haum rau ua high tensile zog hlau. Microcrystalline dawb corundum abrasive thiab dub corundum abrasive yog lawv cov derivatives. Vim lub hardness tsawg ntawm dawb corundum, tsis yooj yim rau tawg, muaj peev xwm tswj tau ib puag ncig thiab blunt zoo, feem ntau yog los ntawm kev cuam tshuam ntawm cov hniav, txav mus, yog li qhov no cov nyhuv sib tsoo ntawm cov hniav yog qhov tsis muaj zog, ntau cov kab nrib pleb hauv zos. ntawm qhov sib tsoo nto, muaj cov khawb me ntsis.

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