dx52d z140 galvanized steel coil

For Galvanized Steel Coils, the thin Steel Plate is immersed in the molten zinc bath to adhere a layer of zinc thin steel plate on the surface. Galvanized Steel coils are mainly produced by continuous galvanizing process, that is, continuous immersion of rolled steel coils in a galvanizing tank with molten zinc to make galvanized steel sheets; alloyed galvanized steel sheets. This kind of Gi steel coil is also manufactured by hot dipping method, but immediately after being discharged from the tank, it is heated to about 500°C to form an alloy film of zinc and iron. This Galvanized Steel Coil has good paint adhesion and weldability. After the hot-dip galvanized steel sheet is pulled out of the zinc pot, the appearance of the crystal grains formed as the zinc layer cools and solidifies is called spangles. The size, brightness and surface morphology of spangles depend on a series of factors, but they are mainly related to the composition of the zinc layer and the cooling method.Galv…