Galvanized coil is a thin steel sheet that immerses the steel sheet into the molten zinc bath and adheres a layer of zinc to its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in the zinc melting bath to make galvanized steel plate; Alloyed galvanized steel sheet. This kind of steel plate is also made by hot dip method, but after it is out of the groove, it is immediately heated to about 500 ℃ to form an alloy coating of zinc and iron. The galvanized coil has good coating adhesion and weldability.
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