Dab tsi yog cov xim ntawm passive zaj duab xis ntawm galvanized steel kav?

Cov xim ntawm cov neeg ua yeeb yaj kiab passive feem ntau sib txawv nyob ntawm cov concentration ntawm hexavalisent chromium thiab cov tuab ntawm zaj duab xis. Thaum cov concentration ntawm hexavalent chromium yog siab, nws zoo li liab; Thaum lub siab yog qhov tsawg, nws zoo li txiv kab ntxwv lossis daj. Yog li ntawd, nrog cov kev sib txawv ntawm hexavalent chromium, tus uas passive zaj duab xis nthuav qhia ntau yam xim xws li liab mus rau daj. Txij li thaum hexavalent chromium qee zaum qee zaum ua kom muaj ntshav haue, liab qab yuav xyaw nrog cov xim xws li xim liab. Cov duab ntxoo passivation nyias tuaj yeem nthuav tawm cov xim tsis txaus siab vim muaj kev cuam tshuam loj. Feem ntau, cov xim ntawm passive zaj duab xis ntawm galvanized steel kav yog feem ntau daj.