Nyob rau hauv tag nrho cov txheej txheem ntawm kev siv lub tshuab polishing tsis siv neeg, tus neeg siv ntsib ib qho teeb meem loj, uas yog "over-polishing".Lub sijhawm polishing lub sij hawm ntev dhau lawm thiab qhov zoo ntawm cov khoom pwm tsis zoo.Raws li ib txwm muaj, "txiv kab ntxwv" yuav tshwm sim."Daim tawv nqaij", "pitting" thiab lwm yam xwm txheej.Tom ntej no, peb lub tuam txhab yuav qhia koj yuav ua li cas los daws qhov teeb meem ntawm "over-polishing" ntawm cov tshuab tsis siv neeg polishing.

Thaum cov khoom ua haujlwm zoo li "txiv kab ntxwv tev", nws feem ntau tshwm sim los ntawm qhov kub thiab txias ntawm cov pwm txheej txheej los yog ntau dhau carburization.Thaum lub sij hawm sib tsoo thiab polishing siab yog qhov loj, lub sij hawm sib tsoo thiab polishing lub sij hawm kuj ntev, uas yuav ua rau cov khoom zoo li."Orange peel" xwm txheej.Yog li dab tsi yog "txiv kab ntxwv tev"?Ntawd yog, txheej txheej saum npoo tsis zoo thiab ntxhib.Lub phaj tawv stainless hlau kuj tuaj yeem tiv taus qhov sib tsoo thiab polishing siab yog qhov loj, thiab cov phaj tsis zoo stainless hlau yog qhov ua rau ntau dhau kev sib tsoo thiab polishing.

Yog li, yuav ua li cas tshem tawm "txiv kab ntxwv tev" ntawm cov khoom ua haujlwm?Peb yuav tsum xub tshem tawm cov txheej txheej uas tsis zoo, thiab tom qab ntawd qhov kev sib tsoo ntawm cov nplej yog me ntsis coarser dua li cov xuab zeb siv ua ntej, thiab txo qhov kub ntawm qhov kub ntawm 25 ℃, thiab tom qab ntawd cov kev ntxhov siab tau ua tiav.Ntxuav, tom qab ntawd siv cov pwm nrog cov xuab zeb zoo dua los txhuam, thiab tom qab ntawd txhuam nrog lub sib zog sib zog kom txog thaum qhov tshwm sim txaus siab.

Lub npe hu ua "pitting" yog qhov pom ntawm qhov zoo li qhov chaw ntawm txheej txheej ntawm cov khoom ua haujlwm tom qab polishing.Qhov no feem ntau yog vim qee cov khoom tsis yog hlau tsis huv yuav raug muab sib xyaw rau hauv cov khoom ua haujlwm hlau, uas feem ntau yog tawv thiab nkig oxides.Yog hais tias lub polishing siab dhau lawm los yog lub sij hawm polishing ntev dhau lawm, cov impurities thiab residues yuav raug rub tawm los ntawm txheej txheej ntawm stainless hlau phaj, tsim dot-zoo li micro-pits.Tshwj xeeb tshaj yog thaum lub purity ntawm stainless hlau phaj yog tsis txaus thiab cov ntsiab lus ntawm hard impurity residue yog siab;txheej txheej ntawm stainless hlau phaj yog corroded thiab xeb los yog cov tawv dub tsis huv, "pitting corrosion" yog feem ntau tshwm sim.

Yuav ua li cas tshem tawm qhov xwm txheej "pitting"?Cov txheej txheej ntawm cov khoom workpiece yog polished dua.Cov nplej loj ntawm cov pwm xuab zeb siv yog ib theem coarser dua li qhov siv ua ntej, thiab lub zog polishing yuav tsum me me.Nyob rau hauv lub neej yav tom ntej, siv cov mos mos thiab ntse oilstones rau cov kauj ruam tom ntej polishing, thiab tom qab ntawd ua cov txheej txheem polishing tom qab ua tiav cov txiaj ntsig zoo.Thaum lub tshuab polishing tsis siv neeg polishing, yog tias qhov luaj li cas ntawm grit yog tsawg dua 1 hli, nws yog ib qho tsim nyog los tiv thaiv kev siv cov cuab yeej softer polishing.Qhov kev siv ntawm kev sib tsoo thiab polishing yuav tsum tsawg li tsawg tau, thiab lub sij hawm yuav tsum luv li sai tau.