Kev kho deg ntawm steel qauv

Cov khoom siv hlau thiab hlau muaj xeb, vuam slag, roj stain, tshuab av, cov xim qub thiab lwm yam khoom seem ntawm qhov chaw vim yog kev ua haujlwm, khaws cia thiab kev thauj mus los. Txhawm rau txhim kho cov xeb thiab corrosion kuj ntawm cov txheej, kev kho deg yog qhov tseem ceeb heev. Txoj kev kho kom huv saum npoo av muaj xws li tshem tawm roj, tshem tawm xeb thiab tshem tawm cov xim qub; Cov kev kho tshuaj muaj xws li phosphating thiab passivation.

⑴ Degreasing

Tshem tawm cov roj stain rau saum npoo ntawm cov khoom siv hlau tuaj yeem txhim kho qhov adhesion ntawm cov xim. Cov kuab tshuaj nrog tus nqi qis, muaj zog solubility, tsis tshua muaj toxicity thiab nonflammable yuav tsum raug xaiv raws li cov roj paug. Feem ntau siv yog 200 # petroleum hnyav roj, turpentine, trichloroethylene, tetrachloroethylene, carbon tetrachloride, dichloromethane, trichloroethane, trifluoro trichloroethane, thiab lwm yam.

(2) Kev tshem tawm xeb

Ua tib zoo tshem tawm cov xeb ntawm cov hlau nto kom ntev lub neej kev pab cuam ntawm txheej zaj duab xis. Cov khoom siv hlau sib txawv muaj cov qauv derusting sib txawv, uas yog cais raws li kev huv ntawm cov hlau nto tom qab derusting.