1. Cov khoom ua tiav thiab cov khoom tiav yuav tsum tsis txhob muab pov tseg ntawm sab nraud yam tsis tau txais los ntawm kev paub dhau los.
2. Ua ntej tshem tawm xeb, cov burrs, vuam daim tawv nqaij, pob qhov rooj, spatter, plua plav, nplai, thiab lwm yam nyob rau sab nrauv ntawm cov welded steel yeeb nkab yuav tsum tau muab ntxuav, thiab cov xeb scale thiab tuab xeb yuav tsum tau muab tshem tawm tib lub sij hawm. .
3. Yog hais tias muaj roj nyob rau saum npoo ntawm cov yeeb nkab steel welded, nws yuav tsum tau muab ntxuav ua ntej xeb tshem tawm. Yog tias muaj roj thiab roj stains tsuas yog nyob rau qee qhov chaw, ib feem ntawm txoj kev pov tseg feem ntau yog ib qho kev xaiv; yog tias muaj qhov loj lossis txhua qhov chaw, hnyav lossis kub alkali ntxuav tej zaum yuav yog ib qho kev xaiv.
4. Thaum muaj cov kua qaub, alkalis thiab ntsev nyob rau saum npoo ntawm cov yeeb nkab steel, koj tuaj yeem xaiv los ntxuav lawv nrog dej kub lossis chav. Txawm li cas los xij, yuav tsum tau saib xyuas rau kev kho dej khib nyiab uas tsis ua rau muaj kuab paug ib puag ncig.
5. Qee qhov tshiab cov kav hlau tsis muaj hlau yog coated nrog cov xim kho kom tsis txhob xeb thaum lub sij hawm luv luv cia thiab kev thauj mus los. Cov kav hlau stainless coated nrog cov xim kho yuav tsum tau kho raws li cov xwm txheej tshwj xeeb. Yog tias cov xim uas kho tau yog ob hom xim uas kho los ntawm tus neeg sawv cev kho, thiab cov xim yog qhov qub, nws tuaj yeem kho nrog emery daim ntaub, stainless hlau yeeb nkab velor lossis lub teeb txau kom tshem tawm cov plua plav ua ntej mus rau kauj ruam tom ntej. Cov kauj ruam kev tsim kho.
6. Cov primer los yog zoo tib yam primer kho txheej nyob rau sab nrauv ntawm welded steel yeeb nkab feem ntau yog txiav txim siab raws li lub xeev ntawm txheej thiab cov txheej txheem tom ntej. Txhua yam khoom uas tsis tuaj yeem siv rau cov txheej txheem ntxiv lossis uas cuam tshuam rau adhesion ntawm lub tsho tiv no tom ntej yuav tsum raug tshem tawm.
