Cov xuab zeb dawb corundum, hmoov dawb corundum, corundum xim av thiab lwm yam abrasives yog cov abrasives uas feem ntau siv, tshwj xeeb tshaj yog hmoov dawb corundum, uas yog thawj qhov kev xaiv rau kev polishing thiab kev sib tsoo. Nws muaj cov yam ntxwv ntawm ib qho siv lead ua, siab hardness, zoo self-sharpening, thiab kev sib tsoo thiab kev ua haujlwm polishing. Cov txiaj ntsig xws li kev ua tau zoo dua tau siv thiab txhawb nqa hauv ntau yam lag luam. Yog li, yuav xaiv li cas thaum polishing?
Kev xaiv cov khoom siv sib txhuam
Cov khoom siv txhuam yog lub cev tseem ceeb uas ua lub luag haujlwm txiav hauv cov txheej txheem sib tsoo. Nws yog lub luag haujlwm ncaj qha rau kev ua haujlwm txiav thiab yog qhov tseem ceeb rau lub log sib tsoo los tsim cov nyhuv sib tsoo. Cov khoom txhuam yuav tsum yog xim av corundum tsim los ntawm Xinli hnav-resistant. Nws cov khoom muaj qhov nyuaj siab, tiv taus kub, thermal stability thiab tshuaj lom neeg ruaj khov, thiab kuj yuav tsum muaj qee yam toughness kom nws tuaj yeem tiv taus qee lub zog sib tsoo.
Txoj cai xaiv cov khoom siv abrasive
Thaum sib tsoo cov ntaub ntawv uas muaj lub zog tensile siab dua, siv cov corundum abrasives uas muaj zog dua. Sib tsoo cov ntaub ntawv uas muaj lub zog tensile qis kom xaiv cov brittle silicon carbide abrasives.
Ntxiv rau qhov xav txog lub zog tensile ntawm cov khoom siv workpiece, qhov nyuaj ntawm cov khoom siv workpiece kuj yog lub hauv paus tseem ceeb thaum xaiv cov abrasives. Feem ntau hais lus, qhov nyuaj ntawm cov abrasive yuav tsum siab dua 2-4 npaug ntawm qhov nyuaj ntawm cov khoom siv workpiece. Txwv tsis pub, cov noob abrasive nrog qhov nyuaj qis dua yuav raug passivated sai sai thaum txiav ceev ceev thiab poob lub peev xwm txiav, uas yuav ua rau lub log ruaj khov qis dhau thiab cuam tshuam rau kev txiav. Kev ua haujlwm zoo, thiab qhov zoo ntawm kev ua haujlwm tsis tuaj yeem lav. Yog li ntawd, qhov nyuaj ntawm cov khoom siv workpiece siab dua, qhov nyuaj ntawm cov abrasive yuav tsum siab dua.
Kev xaiv cov khoom siv abrasive
Yuav tsum xav txog tej yam tshuaj lom neeg uas yuav tshwm sim hauv cov txheej txheem sib tsoo. Hauv thaj chaw sib tsoo, cov khoom siv abrasives, cov khoom siv khi, cov khoom siv ua haujlwm, cov kua sib tsoo thiab huab cua feem ntau yuav muaj cov tshuaj lom neeg tshwm sim hauv qab qhov kev ua haujlwm ntawm qhov kub thiab lub zog sib tsoo. Thaum siv hlau, qhov hnav ntawm cov khoom siv abrasive sai dua li ntawm corundum abrasive thaum sib tsoo hlau. Qhov laj thawj tseem ceeb rau qhov no yog qhov tshuaj lom neeg muaj zog ntawm silicon carbide abrasive thiab hlau.
Tsis tas li ntawd xwb, qhov ruaj khov ntawm cov khoom siv abrasive kuj yuav tsum tau xav txog thaum xaiv cov khoom siv abrasive. Thaum sib tsoo qee cov khoom siv nyuaj rau sib tsoo, lwm yam xwm txheej tshwm sim thaum thaj chaw sib tsoo yooj yim ua rau muaj qhov kub siab dua.