Galvanized coil txheej txheem
Lus piav qhia luv luv:
Galvanizing yog hais txog cov txheej txheem kho saum npoo ntawm plating txheej zinc ntawm cov hlau, hlau lossis lwm yam khoom siv rau kev zoo nkauj thiab tiv thaiv xeb.Txoj kev tseem ceeb yog kub galvanizing.
Zinc yog yooj yim soluble nyob rau hauv acid thiab alkali, yog li nws yog hu ua amphoteric hlau.Zinc tsis tshua hloov hauv huab cua qhuav.Nyob rau hauv huab cua ntub, qhov ntom ntom zinc carbonate zaj duab xis yuav raug tsim rau ntawm zinc nto.Nyob rau hauv cov huab cua uas muaj sulfur dioxide, hydrogen sulfide thiab marine cua, corrosion kuj ntawm zinc tsis zoo, tshwj xeeb tshaj yog nyob rau hauv cov huab cua uas muaj cov organic acid nyob rau hauv kub thiab av noo, zinc txheej yog heev yooj yim mus corroded.Tus qauv electrode peev xwm ntawm zinc yog -0.76v.Rau steel substrate, zinc txheej belongs rau anodic txheej.Nws yog tsuas yog siv los tiv thaiv corrosion ntawm hlau.Nws kev tiv thaiv kev ua tau zoo yog ze rau cov txheej txheej thickness.Kev tiv thaiv thiab kho kom zoo nkauj ntawm zinc txheej tuaj yeem txhim kho tau zoo tom qab passivation, dyeing lossis txheej nrog lub teeb tiv thaiv
