Sandpaper, cov khoom siv tseem ceeb hauv kev tsim khoom thiab khoom siv tes ua, muaj nws qhov loj me ncaj qha cuam tshuam rau kev ua haujlwm thiab cov khoom zoo. Lub grit system quantifies particle density by the number of abrasive particles per square inch, ua raws li cov hauv paus ntsiab lus uas "cov lej me me txhais tau hais tias coarser particles thiab muaj zog txiav quab yuam, thaum loj grit tooj txhais tau hais tias finer particles thiab ntiav sanding marks," ua tiav cov txheej txheem saw los ntawm ntxhib mus rau nplua.
Hauv cov chaw tsim khoom, qhov sib txawv ntawm qhov sib txawv ua rau cov hom phiaj sib txawv: 40-80 grit yog siv rau hnyav-cov haujlwm xeb tshem tawm thiab xim stripping, xws li hauv kev kho nkoj thiab tsheb lub cev; 100-180 grit tsom rau deburring hlau thiab leveling ntoo, nteg lub hauv paus rau cov txheej txheem tom ntej; 220-400 grit yog siv rau sanding phab ntsa putty thiab polishing yas qhov chaw, xyuas kom meej lub hauv paus lub tsho tiv no; 600-1000 grit npaj high-gloss hlau qhov chaw thiab piano tiav rau daim iav zoo li tiav; thiab 1200-2000 grit ua kom tiav qhov kawg polishing ntawm ultra-precision nto xws li tsom iav qhov muag thiab cov cuab yeej phais.
Kev xaiv yuav tsum ua raws li peb lub hauv paus ntsiab lus: Cov khoom siv sib raug zoo yuav tsum xaiv hom abrasive raws li cov yam ntxwv ntawm cov khoom siv, xws li silicon carbide rau cov hlau mos thiab pob zeb diamond rau cov alloys nyuaj, thiab qhov txawv ntawm cov ntoo thiab tawv tawv rau sanding; Cov txheej txheem kev loj hlob ntawm cov txheej txheem qhia tau hais tias qhov loj me me yuav tsum tsis pub tshaj 3 zaug, nrog cov kab ntau lawm uas yuav tsum tau PLC tswj cov xuab zeb tsis, thaum kev tuav haujlwm siv cov xuab zeb ntub dej kom tsis txhob muaj kev puas tsuaj; Cov txheej txheem tshwj xeeb yuav tsum tau siv cov ntawv xuab zeb tshwj xeeb, xws li ruby abrasives rau stainless hlau polishing thiab sib xyaw abrasives rau vuam taw tes kho, thiab kev kho cov dav hlau cav hniav yuav tsum tau siv cov coolant kom tiav 0.01mm geometric kam rau ua tswj.
Qhov sib npaug ntawm kev ua tau zoo thiab kev ua tau zoo yog pom nyob rau hauv cov kev xav tau zoo sib xws: lub tuam txhab tsheb tau ua kom zoo dua qhov loj me rau lub log hub polishing los ntawm kev tshuaj xyuas qhov muag, ua rau 8-thib ob nce sijhawm ua haujlwm ib thooj, tab sis 37% txo cov plating tsis xws luag. Qhov no lees paub tias kev xaiv cov ntawv xuab zeb yog qhov tseem ceeb ntawm kev sib koom ua ke ntawm cov ntaub ntawv tshawb fawb thiab kev xyaum ua haujlwm; Tsuas yog los ntawm kev nkag siab txog kev tshawb fawb ntawm qhov loj me tuaj yeem ua tiav qhov kev nthuav qhia zoo meej hauv micro-processing.
