Txhawm rau ua kom tau raws li qhov xav tau ntau yam ntawm qhov chaw ntawm kev siv cov kev nce qib, txuas ntxiv lub neej ntawm galvanized steel, zinc txheej cov ntaub ntawv yog hloov zuj zus. Cov txheej txheem tshiab tseem ceeb yog:

(1) zinc-hlau alloy txheej. Qhov ntawd galvanized steel tom qab kev kho cua sov. Xws li cov diffusion annealing ntawm 500 ~ 550 ℃ 10 ~ 15min, nws yuav muab cov yeeb nkab galvanized hauv oilfield txuas lub neej ntawm ze li ntawm 9 zaug;

(2) Ntau lossis galvanized txheej uas muaj cov kab ntawm cov khoom siv alloying. Xws li ntxiv qhov tsim nyog cov nyiaj npib tsib xee tuaj yeem muaj peev xwm corrosion ntau dua li ntawm cov yeeb nkab ntshiab electro-galvanized nce ntau dua 10 zaug;

(3) Composite txheej. Uas yog los ntawm kev siv lub hauv paus ntawm qhov xav tau, nyob rau hauv galvanized steel coated nrog ib txheej ntawm cov organic cov ntaub ntawv tsim nyog, xws li corrosion, kub tsis kam, txias tsis kam, hnav tsis kam, cuam tshuam tsis kam thiab ua kom yooj, thiab lwm yam, peb tuaj yeem ua tau raws li qhov xav tau ntawm cov khoom siv. ib lossis ntau qhov kev xav tau siab dua. Yog xim txheej, raws li zoo raws li decorations thiab chij nyhuv.