Ib qho loj ntawm cov xeb dawb tuaj yeem tshwm rau ntawm qhov chaw ntawm galvanized, tab sis qhov tseeb corrosion ntawm txheej yog me me. Feem ntau, cov tsos ntawm cov xeb dawb tsis qhia tias cov txheej plating puas loj heev los yog nws tsis tas txhais tau tias lub neej kev pab cuam ntawm lub plating yuav raug txo. Tom qab cov xeb dawb tshwm sim, cov plating yuav tsum tau muab pov tseg kom lawv qhov chaw qhuav sai.
Cov khoom siv dawb thiab grey corrosion ntawm qhov ntev-kho thiab xeb dawb ntawm cov xeb dawb tuaj yeem ua xim dub. Thaum qhov no tshwm sim, tsuav yog cov zinc txheej tuab txaus, nws yuav tsis cuam tshuam rau lub neej kev pab cuam hauv GB / T13912-2020 tias ntev npaum li lub thickness ntawm cov txheej yog ntau dua li cov nqi teev, qhov chaw ntawm lub plating qhov chaw tso cai kom muaj qhov tsaus ntuj lossis lub teeb grey xim tsis sib xws. Essence Cov cuab yeej galvanized khaws cia nyob rau hauv cov av noo yog tso cai kom muaj nyob rau ntawm qhov chaw (dawb los yog grey corrosion khoom feem ntau raws li alkaline zinc oxide).
