GI cev, tseem hu ua Galvanized Hlau kav, muaj zinc txheej siv rau lawv qhov chaw los ntawm cov txheej txheem hu ua galvanization. Cov zinc txheej muab kev tiv thaiv zoo heev rau cov kav hlau, tiv thaiv lawv ntawm xeb thiab txuas ntxiv lawv lub neej.
Cov txheej txheem galvanization yuav immersing cov kav hlau uas huv huv hauv da dej ntawm zinc molten ntawm qhov kub thiab txias. Cov zinc reacts nrog cov hlau, tsim ib daim ntawv cog lus metallurgical uas ua rau lub zog ruaj khov thiab zoo ib yam zinc txheej ntawm cov kav dej.
Muaj ob hom kev galvanization tseem ceeb:
Kub-Dip Galvanization: Qhov no yog txoj kev siv ntau tshaj plaws rau GI kav. Cov yeeb nkab steel yog dipped rau hauv lub molten zinc da dej, tso cai rau cov zinc coated tag nrho saum npoo, ob sab hauv thiab sab nraum cov yeeb nkab. Kub-dip galvanization muab cov zinc txheej tuab thiab muaj zog dua, ua rau nws tsim nyog rau ntau yam kev siv, suav nrog dej, kav dej, thiab kev txhawb nqa.
Electro-Galvanization: Hauv txoj kev no, zinc txheej yog siv rau cov yeeb nkab steel nto uas siv cov txheej txheem electroplating. Thaum cov txheej txheej electro-galvanized yog nyias dua li cov txheej kub-dip, lawv tseem muab kev tiv thaiv corrosion zoo thiab feem ntau siv rau kev siv sab hauv tsev lossis hauv ib puag ncig uas tsis tshua muaj qhov hnyav.
Cov zinc txheej ntawm GI kav feem ntau yog du thiab muaj cov yam ntxwv ntawm cov nyiaj-grey zoo li. Cov txheej no ua raws li cov txheej txheem kev txi, txhais tau hais tias yog cov yeeb nkab saum npoo yog khawb lossis puas, zinc yuav corrode es tsis txhob siv cov hlau hauv qab, tiv thaiv cov hlau los ntawm xeb. Lub thickness ntawm zinc txheej tuaj yeem sib txawv raws li cov txheej txheem galvanization thiab cov qauv tshwj xeeb thiab cov tseev kom muaj rau cov kav dej GI.
