Dab tsi yog Txoj Kev Kho Mob Ua Ntej Rau Txau Cov Kab Ntau Lawm?

Txau cov kab ntau lawm tau dhau los ua qhov tseem ceeb heev hauv kev tsim kho niaj hnub. Lawv feem ntau siv nyob rau hauv daim ntawv thov ntawm ntau ntau ntawm cov txheej thiab ua tiav rau ntau hom khoom. Txhawm rau kom ntseeg tau tias muaj txiaj ntsig thiab ua tau zoo ntawm cov kab ntau lawm, nws yog qhov tseem ceeb rau kev ua haujlwm ua ntej kev kho mob uas teev cov theem rau txheej txheem txheej txheej. Kab lus no yuav tshawb txog qee txoj kev kho ua ntej rau txau cov kab ntau lawm.

Degreasing

Thawj kauj ruam hauv txhua txoj kev kho mob ua ntej yog ntxuav lub ntsej muag ntawm cov khoom kom coated. Yog li ntawd, degreasing yuav tsum tau nqa tawm kom tshem tawm tej yam av, roj, los yog roj uas muaj nyob rau ntawm cov khoom nto. Degreasing tuaj yeem ua tiav los ntawm kev siv cov kuab tshuaj, alkaline-raws li cov tshuaj ntxuav tes, lossis tshuaj ntxuav tes nrog kev pab ntawm cov tshuab ultrasonic. Txoj kev zoo tshaj plaws degreasing yuav txawv nyob ntawm seb hom ntawm cov khoom nto, nws loj, thiab hom txheej yuav tsum tau siv.

Kev tshem tawm xeb

Cov kauj ruam tom ntej hauv kev kho mob ua ntej yog tshem tawm xeb lossis lwm yam oxide ntawm cov khoom nto. Xeb yog cov khoom ntawm cov tshuaj tiv thaiv ntawm cov hlau thiab oxygen, thiab nws lub xub ntiag ntawm cov khoom siv saum npoo yuav cuam tshuam qhov adhesion ntawm cov txheej txheem siv rau saum npoo. Cov xeb tuaj yeem raug tshem tawm los ntawm kev siv tshuab xws li xuab zeb blasting lossis tshuaj lom neeg, xws li kho qhov chaw nrog cov kua qaub. Kev xaiv ntawm txoj kev tshem tawm xeb yuav nyob ntawm seb qhov xeb ntawm cov khoom siv nto, hom khoom, thiab hom txheej uas yuav tsum tau siv.

Phosphating

Phosphating yog ib qho tshuaj tiv thaiv uas cuam tshuam nrog kev siv cov phosphate txheej rau cov khoom nto. Lub hom phiaj tseem ceeb ntawm phosphating yog txhawm rau txhim kho qhov adhesion ntawm txheej rau cov khoom nto. Feem ntau siv hom phosphating yog hlau phosphating thiab zinc phosphating. Hlau phosphating yog zoo tagnrho rau steel qhov chaw, thaum zinc phosphating yog zoo rau txhuas. Phosphating muaj txiaj ntsig zoo hauv kev txhim kho corrosion ntawm cov khoom nto thiab txhim kho tag nrho cov tsos ntawm txheej.

Kev mus los

Etching yog txheej txheem ntawm kev kho cov khoom saum npoo nrog cov kua qaub lossis caustic los tsim ib qho chaw uas muaj kuab ntau dua rau cov nplaum ntawm txheej. Cov txheej txheem etching tsim ib qho saum npoo uas muaj ntxeem tau thiab muaj lub zog loj, uas ua rau nws yooj yim dua rau cov khoom siv ua ntej. Etching yog qhov tshwj xeeb tshaj yog thaum ua tiav cov txheej txheem rau plastics, kev sib xyaw, thiab cov khoom siv tsis yog hlau nplaum.

Priming

Priming yog cov kauj ruam kawg hauv kev kho mob ua ntej, thiab nws yuav tsum siv cov txheej txheem primer rau saum npoo ntawm cov khoom. Lub hom phiaj tseem ceeb ntawm priming yog txhawm rau txhim kho qhov adhesion ntawm topcoat thiab, los ntawm kev txuas ntxiv, txhim kho tag nrho cov khoom zoo thiab ua haujlwm ntev ntawm cov khoom coated kawg. Priming tseem ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov khoom nto ntawm corrosion thiab lwm yam kev puas tsuaj. Cov primers tuaj yeem ua hnyav lossis dej raws li, nyob ntawm seb hom txheej txheej tau thov.

Hauv kev xaus, kev kho mob ua ntej yog ib qho tseem ceeb ntawm cov txau kab txheej txheem ntau lawm. Cov txheej txheem kev kho mob ua ntej muaj cov kauj ruam xws li kev tshem tawm, xeb, etching uas npaj cov khoom saum toj ntawm kev siv ntawm cov txheej txheem. Cov txheej txheem kho mob ua ntej kom ua kom ntseeg tau tias cov txheej txheej ua kom zoo rau cov khoom saum npoo av, thaum tseem ua kom zoo thiab ruaj khov ntawm cov khoom kawg. Nws yog qhov tseem ceeb rau kev xaiv cov qauv kev kho mob ua ntej ua haujlwm raws li hom khoom ntawm cov khoom sib txawv, thiab cov txiaj ntsig xav tau, thiab cov txiaj ntsig xav tau, thiab cov txiaj ntsig xav tau.