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Hot Dip Galvanized

- Sep 14, 2018 -

Hot dip galvanized

    Hot galvanizing is a kind of alloy layer produced by the reaction of molten metal and iron substrate.Hot galvanizing is the process of pickling the steel tube first, in order to remove the iron oxide on the steel tube surface, after pickling, through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed water solution trough to clean, then into hot dip, plating bath.Hot galvanizing has the advantages of uniform coating, strong adhesion and long service life.

Introduction of the process

    The principle of hot discontinuous galv is simply that the cleaned iron is soaked in zinc bath through the wetting effect of Flux to make the steel react with the molten zinc to form a alloyed leather film.

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Hot dip galvanized

    Good hot dip galvanizing operations should be under strict control of all processes, fully play the function of the process.And if the operation of the previous process is not good enough, it will cause a chain of adverse reactions to the subsequent process, and a large increase in the cost of operation or cause bad hot dip galvanizing products.If the pretreatment is not good, the molten zinc can not fully react with the steel to form the most perfect galvanized film.If the post-treatment is not good, it will damage the appearance of the galvanized film and reduce the value of the goods.