Nov yog cov ncauj lus kom ntxaws txog polishing:
1. Ntau dhau polishing
Qhov teeb meem loj tshaj plaws nyob rau hauv cov txheej txheem polishing niaj hnub yog "ntau polishing", uas txhais tau hais tias lub sijhawm polishing ntev dua, qhov ua tau zoo ntawm cov pwm saum npoo. Muaj ob qhov tshwm sim ntawm kev polishing ntau dhau: txiv kab ntxwv tev thiab pitting. Kev polishing ntau dhau feem ntau tshwm sim hauv cov tshuab polishing.
2. Ua rau "txiv kab ntxwv tev" ntawm workpiece
Irregular thiab ntxhib nto yog hu ua "txiv kab ntxwv tev". Muaj ntau ntau yam ua rau "txiv kab ntxwv tev". Feem ntau yog vim li cas yog cov pwm saum npoo yog overheated los yog carburized ntau dhau. Ntau dhau polishing siab thiab polishing lub sij hawm yog cov laj thawj tseem ceeb rau kev tsim "txiv kab ntxwv tev". Piv txwv li, thaum polishing nrog lub log polishing, lub tshav kub tsim los ntawm polishing log yuav yooj yim ua rau "txiv kab ntxwv tev". Cov hlau tawv tawv tuaj yeem dais ntau dua polishing siab, thiab cov hlau softer yog feem ntau dhau polishing. Kev tshawb fawb tau ua pov thawj tias lub sijhawm dhau polishing sib txawv nrog lub hardness ntawm cov hlau.
3. Kev ntsuas kom tshem tawm "txiv kab ntxwv tev" ntawm workpiece
Thaum pom tias qhov zoo ntawm qhov chaw tsis zoo polished, ntau tus neeg yuav ua rau lub polishing siab thiab ntev lub sij hawm polishing, uas feem ntau ua rau saum npoo tsis zoo.
Cov hauv qab no tuaj yeem siv los kho:
(1) Tshem tawm qhov tsis xws luag, zom qhov me me me me ntawm cov xuab zeb dhau los, thiab tom qab ntawd zom nws, thiab polishing quab yuam qis dua li yav dhau los.
(2) Kev ntxhov siab yuav tsum tau nqa tawm ntawm qhov kub ntawm 25 degree qis dua qhov kub thiab txias, thiab cov xuab zeb zoo tshaj plaws yuav tsum tau siv rau kev sib tsoo ua ntej polishing kom txog thaum tau txais txiaj ntsig zoo, thiab thaum kawg polishing yuav tsum tau nqa tawm nrog lub teeb quab yuam.
4. Ua rau "pitting corrosion" ntawm workpiece nto
Vim tias qee qhov tsis yog xim hlau tsis huv hauv cov hlau, feem ntau yog tawv thiab nkig oxides, yog rub tawm ntawm cov hlau nto thaum lub sij hawm polishing txheej txheem los ua pits los yog pitting corrosion, lub ntsiab yam ua rau "pitting corrosion" yog raws li nram no:
(1) Lub siab polishing siab dhau lawm thiab lub sijhawm polishing ntev dhau lawm.
(2) Lub purity ntawm hlau tsis txaus, thiab cov ntsiab lus ntawm cov impurities nyuaj yog siab.
(3) Cov pwm saum npoo yog xeb.
(4) Cov tawv dub tsis raug tshem tawm.
5. Kev ntsuas los tshem tawm pitting corrosion ntawm workpiece
(1) Ua tib zoo regrind qhov chaw, thiab cov xuab zeb particle loj me ntsis loj dua qhov uas tau siv yav dhau los. Siv mos thiab ntse oilstone rau cov kauj ruam kawg ntawm kev sib tsoo ua ntej polishing.
(2) Thaum cov xuab zeb loj dua 1 hli, cov cuab yeej polishing yuav tsum zam.
(3) Sim siv lub sijhawm polishing luv tshaj plaws thiab qhov tsawg tshaj plaws polishing quab yuam.