Vim li cas thiaj muaj ntau yam xim ntawm cov yeeb yaj kiab passivation, thiab cov xim dab tsi yog cov yeeb yaj kiab passivation ntawm cov kav hlau galvanized feem ntau?

Cov xim ntawm cov zaj duab xis passivation feem ntau txawv nrog cov ntsiab lus ntawm hexavalent chromium thiab thickness ntawm zaj duab xis. Thaum cov concentration ntawm hexavalent chromium siab, zaj duab xis tshwm liab; Thaum cov concentration tsawg, nws zoo li txiv kab ntxwv lossis daj. Yog li ntawd, nrog ntau qhov sib txawv ntawm hexavalent chromium, zaj duab xis passivation nthuav tawm ntau yam xim xws li liab mus rau daj. Txij li thaum hexavalent chromium qee zaum pom cov xim liab, ntshav kuj tseem tuaj yeem sib xyaw nrog cov xim xws li liab mus rau daj. Nyias passivation films nthuav tawm xim iridescent vim lub teeb cuam tshuam. Feem ntau, cov xim ntawm cov zaj duab xis passivation ntawm galvanized steel kav feem ntau yog daj.