The process of hot-dip galvanized sheet

Hot-dip Galvanized Steel Sheet, a thin steel sheet that is dipped into a molten zinc bath so that a layer of zinc adheres to its surface. It is mainly produced by the continuous galvanizing process, in which rolls of steel sheet are continuously dipped in a bath of molten zinc to make galvanized steel sheet; alloyed galvanized steel sheet is also manufactured by the hot dipping method, but immediately after leaving the bath, it is heated to about 500°C to produce an alloy coating of zinc and iron. This type of galvanized steel has good paint adhesion and weldability.

Hot-dip galvanized sheet is made by hot-rolling the steel from a billet into a sheet of a certain thickness, such as 10mm. If the user does not have higher requirements for the surface, thickness and mechanical strength of the sheet, the finished product can be processed, such as galvanized, and sold directly, which is a hot sheet. If you have higher requirements for the plate, then the hot rolled plate is sent to the cold rolling line for re-processing, after pickling, annealing, re-rolling and other processes to get a thinner, brighter surface and better mechanical properties of the cold rolled plate.

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