Lub substrate ntawm lub zog coated steel ntawv yog ua los ntawm zinc-aluminium-magnesium (ZM) alloy txheej.Raws li kev siv thev naus laus zis niaj hnub galvanizing, qee qhov kev faib ua feem ntawm txhuas thiab magnesium tau ntxiv los ua zinc-aluminium-magnesium alloy txheej.Cov qauv eutectic uas muaj txhuas thiab magnesium yog tsim nyob rau hauv txheej, uas zoo txhim kho corrosion kuj thiab huab cua tsis kam ntawm txheej.Nws muaj qee yam tsis siv neeg kho tus kheej ua haujlwm rau kev txiav, khawb thiab puas tsuaj tsim thaum lub sijhawm ua cov ntawv hlau, kev thauj mus los thiab kev teeb tsa.Cov kev sim qhia tau hais tias tom qab ntsev tsuag corrosion, cov khoom siv corrosion muaj magnesium thiab txhuas kuj tshwm sim ntawm kev txiav ntawm steel phaj.Qhov tsis tshua muaj hluav taws xob thiab qhov ntom ntom ntawm cov khoom siv corrosion no cais qhov kev txiav tawm ntawm cov dej thiab cov pa oxygen, tsim cov txheej txheem tiv thaiv zoo.Yog li ntawd, txawm tias cov txheej txheej txheej puas lawm, zinc-aluminium-magnesium alloy txheej tseem muaj kev tiv thaiv corrosion zoo heev thiab huab cua tsis kam.Rau qee qhov, qhov no tiv thaiv kev tiv thaiv corrosion los ntawm khawb, shearing, thiab xuas nrig ntaus uas nquag tshwm sim thaum lub sij hawm installation ntawm steel ntawv.
