Tom qab tawm los ntawm molten zinc da dej, steel kav yuav tsum tau mus rau sab hauv thiab sab nraud blasting thiab so kev kho mob vim yog vim li cas:
(1) Txhawm rau tshem tawm cov zinc nodules, zinc tshauv, flux residue, thiab lwm yam khoom siv ntab uas ua rau cov txheej txheem galvanized.
(2) Txhawm rau ua tiav cov txheej txheem du thiab ci ntsa iab ntawm ob sab hauv thiab sab nraud ntawm cov kav dej steel, yog li txuas ntxiv kev pabcuam lub neej ntawm cov kav dej thiab txo cov dej thauj mus los.
(3) Yuav kom ua tiav cov tuab tuab ntawm cov zinc txheej ntshiab, txuag zinc noj thiab txo cov nqi.
