Alloyed galvanized steel coil. This steel coil is also made by hot dip, but immediately after the trough, it is heated to about 500℃, so that it generates an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.
It is mainly produced by the continuous galvanizing process, that is, the coiled steel plate is continuously immersed in the zinc-melted plating tank to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also made by the hot-dip method, but it is heated to about 500 °C immediately after exiting the tank to form an alloy film of zinc and iron. This galvanized steel coil has good paint adhesion and weldability.
hot dip process cold rolled coil is carbon steel coated with zinc. The most common galvanizing method is the hot-dip process.
Although this is the most common form of galvanizing, because the thickness of the final product is not easy to control, it is usually used for previously manufactured steel. Another method of galvanizing process is continuous galvanizing.
After continuous galvanizing passes through the zinc bath, galvanizing will be performed on the surface of the continuous steel strip (coil). The hot dipping process consists of passing the steel through a bath of molten zinc, while the electro-galvanizing process consists of the application of zinc through electrolytic disposition. 
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