Hauv kev sib tsoo ntxhib, qhov nyiaj sib tsoo yog qhov loj thiab qhov yuav tsum tau muaj qhov roughness siab, yog li coarserabrasive nplejs yuav tsum tau siv. Vim hais tias cov abrasive grit yog ntxhib thiab muaj qhov pores loj, qhov sib tsoo qhov tob yog loj thiab lub log sib tsoo tsis yooj yim rau txhaws thiab kub. Hauv kev sib tsoo zoo, qhov nyiaj pub dawb yog me me thiab tus nqi roughness yuav tsum yog me me, yog li cov nplej nplua nuj tuaj yeem xaiv tau. Feem ntau hais lus, qhov zoo dua cov nplej abrasive, qhov zoo dua qhov sib tsoo nto roughness.
Lo lus "peb mesh" txhais li cas?
Tus xov tooj mesh hais txog tus naj npawb ntawm qhov ib square inch ntawm qhov screen. 50 mesh txhais tau tias 50 qhov ib square inch, thiab 500 mesh txhais tau tias 500 qhov ib square inch. Qhov siab dua tus naj npawb mesh, qhov ntau qhov muaj, thiab qhov me me ntawm qhov loj me ntawm cov abrasive uas tau tshuaj ntsuam, qhov zoo dua qhov me me. Lub lim cais cov khoom abrasive rau ntau qhov sib txawv.
Kev xaiv ntawm abrasive grit loj muaj feem xyuam rau cov khoom ntawm lub workpiece thiab cov txheej txheem sib tsoo, tshwj xeeb tshaj yog qhov roughness ntawm workpiece nto tom qab sib tsoo, tus nqi pub, thiab qhov siab tshaj plaws ib rab riam txiav qhov tob.
Raws li pom nyob rau hauv daim duab, cov strips hais nyob rau hauv qhov dav txwv, tab sis qhov ntev txwv yog tshaj. Cov khoom zoo li no tseem yuav xau los ntawm qhov screen thiab sib tov rau hauv 120/140 abrasive. Thaum ua rau hauv lub log sib tsoo, nws yooj yim rau khawb lub workpiece. Yog hais tias qhov zoo-grained sib tsoo log siv rau kev sib tsoo zoo khawb lub workpiece, lub workpiece yuav tsum scrapped. Yog li ntawd, W10 thiab coarse-grained hais feem ntau tuaj yeem raug tshuaj xyuas ob peb zaug kom txo tau cov strips thiab flakes, thaum W10 thiab nplua-grained micro-hmoov feem ntau tuaj yeem txo los ntawm kev nce cov sij hawm sedimentation los txo cov strips thiab cov khoom loj. Tsis tas li ntawd, qhov zoo ntawm qhov screen yuav tsum tsim nyog.
"Grit loj" yog ncaj qha ntsig txog qhov zoo ntawm kev sib tsoo, tshwj xeeb tshaj yog qhov roughness ntawm qhov chaw. Rau abrasives ntawm tib qhov me me, qhov ntse dua cov nplej abrasive, qhov ua tau zoo dua qub, thiab cov nplej rounder, qhov zoo dua qhov zoo (qhov me me ntawm qhov roughness nqi). Feem ntau, rounded nplej muaj zog dua cov nplej ntse. Lub zog ntawm abrasive muaj feem xyuam rau qhov ntom ntawm cov qauv siv lead ua ntawm lub abrasive nws tus kheej, uas yog, thaum lub abrasive grit ntug tseem ntse heev, nws tuaj yeem tiv taus sab nraud tsis raug tawg. Abrasives nrog lub zog tsis zoo muaj cov nplej zom zom zom sai sai, muaj peev xwm txiav qis, thiab muaj lub neej ua haujlwm luv luv.
Yuav kom tau txais kev sib tsoo zoo dua, lub pob zeb abrasive yuav tsum muaj lub zog txaus. Lub superhard sib tsoo log yuav tsum tau ob qho tib si sib npaug abrasive nplej los xyuas kom meej qhov zoo ntawm kev ua thiab cov ntse abrasive nplej los txhim kho nws cov kev ua tau zoo.
