The principle of hot-dip galvanizing, simply said that the clean iron has been cleaned, through the wetting effect of the plating agent, immersion in the zinc bath, so that steel and molten zinc reaction to produce an alloying skin film.
Good hot-dip galvanizing operation, should be all processes under strict control, the full play of the function of the process. And if the operation of the previous process is not very bad, will cause follow-up process of the chain of adverse reactions, and a large increase in operating costs or undesirable hot-dip galvanized products. If the ex-wife to deal with the poor, then the molten zinc can not fully respond to steel normal, the formation of the most perfect galvanized skin membrane tissue. If the late treatment is bad, it will destroy the appearance of galvanized film, reduce the value of goods.
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