Abrasives yog ib qho cuab yeej siv hauv kev tsim khoom, qhov tseeb, tsis muaj abrasives, peb cov dav hlau yuav tsis muaj peev xwm ya thiab peb lub tsheb yuav tsav tsis tau. Hauv kev sib tsoo, ib qho ntawm cov khoom siv feem ntau siv abrasive yog covsib tsoo log! Niaj hnub nimno abrasives tau hloov zuj zus mus rau hauv cov khoom siv cuab yeej cuab tam siv los tsim cov khoom sib txuam los ntawm qee qhov nyuaj tshaj plaws alloys thiab cov ntaub ntawv paub. Sib tsoo lub log feem ntau suav nrog cov nplej abrasive, daim ntawv cog lus thiab grit.
1. Abrasive nplej
Abrasive grains muab cov haujlwm tseem ceeb ntawm asib tsoo lograws li lawv zom qhov chaw ntawm lub workpiece. Feem ntau siv sib tsoo log abrasives yog ceramic alumina, zirconia alumina, aluminium oxide, alumina dawb, aluminium oxide, thiab silicon carbide. Abrasive nplej kuj tuaj yeem muab sib xyaw ua ke kom ua tiav cov yam ntxwv sib txawv.
2. Daim ntawv cog lus
Ib daim ntawv cog lus yog ib yam khoom uas ua rau cov nplej abrasive ua raws li kev sib tsoo. Bonds tuaj yeem tsim los ntawm cov khoom sib txawv. Cov ntaub ntawv muaj xws li shellac, resin, roj hmab, thiab iav los yog iav-ceramic. Daim ntawv cog lus ntawm lub log tuaj yeem nyuaj lossis muag. Daim ntawv cog lus nyuaj txuas ntxiv lub neej ntawm lub log yog tias tus neeg siv tuav thiab tuav lub log kom zoo. Softer bonds cia smoother sib tsoo thiab nthuav tawm cov nplej tshiab sai dua.Sib tsoo logCov ntawv cog lus qee zaum muaj hlau, sulfur, thiab tshuaj chlorine, uas tuaj yeem ua teeb meem yog tias lawv lo rau lub workpiece thaum sib tsoo, yog li koj yuav tsum tsis txhob muaj cov log zoo li no. Nyob rau tib lub sijhawm, daim ntawv cog lus ntawm lub log nthuav tawm cov nplej tshiab, pab muab cov khoom lag luam tshem tawm zoo ib yam. Raws li cov laus grit hnav tam sim ntawd, cov grit tawg tawm raws li tsim, nthuav tawm qhov tshiab abrasive nto, thaum lub grit tshiab nyob qhov twg nws nyob. Nyob rau hauv ib txwm ua hauj lwm tej yam kev mob, abrasion tshem tawm hnav abrasive hais thiab tawm tom qab cov tshiab, tswj lub log zoo heev txiav tus nqi thiab kev ua tau zoo.
3. Grit
Kev sib tsoo log grit yog qhov tseem ceeb los muab qhov hnav kom raug. Grit ntsuas feem ntau yog los ntawm ntxhib mus rau nplua. Xaiv cov qib zoo grit rau ib daim ntawv thov tshwj xeeb pab kom muaj peev xwm sib tsoo txaus. Coarser grits muaj cov nqi tshem tawm zoo dua, thaum cov grits zoo dua yuav tsum muaj lub zog tsawg dua thaum thov thiab tso cai rau qhov ua tiav kawg ntawm qhov ua haujlwm zoo dua.
Thaum xaiv ibsib tsoo logkoj yuav tsum xav txog txoj kab uas hla thiab thickness ntawm lub sib tsoo log. Txoj kab uas hla ntawm lub log sib tsoo feem ntau yog nyob ntawm cov cuab yeej muaj. Xaiv txoj kab uas hla kom raug kuj ua rau muaj kev nyab xeeb ntxiv vim nws tso cai rau kev siv cov neeg saib xyuas kom raug. Cov log loj dua ntev dua, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas tus neeg teb xov tooj yuav tsum khiav lub log rau lub sijhawm ntev, ua kom cov khoom tsim tau los ntawm kev txo cov sij hawm tus neeg teb xov tooj yuav tsum nres thiab hloov cov abrasive. Kev teeb tsa ntawm qhov chaw ua haujlwm thiab qhov chaw ua haujlwm yuav cuam tshuam rau kev xaiv ntawm txoj kab uas hla. Lub thickness ntawm lub sib tsoo log yuav cuam tshuam rau nws cov kev ua tau zoo thiab lub neej, yog li lub sib tsoo log ntawm qhov tsim nyog thickness kuj tseem ceeb heev.