What is Galvanized Steel?

What is Galvanized Steel?

Galvanized sheet is to avoid corrosion on the surface of the thick steel plate and increase its service life, a layer of metal zinc is coated on the surface of the thick steel plate. Classification can be divided into the following types according to manufacturing and production processing methods

① Hot-dip galvanized thick steel plate. The cold-rolled steel sheet is infiltrated into the molten zinc bath, so that the surface of the cold-rolled steel sheet is adhered with a layer of zinc. At this stage, the key is to use continuous hot-dip galvanizing process for production, that is, continuous immersion of the thick steel plate in a plate in a plating tank with molten zinc to make a galvanized sheet;

②Fine-grain reinforced galvanized sheet. This kind of thick steel plate is also produced by the hot dip method, but after it is out of the groove, it is heated to about 500 ℃ to convert it into an aluminum alloy coating of zinc and iron. This type of galvanized sheet has excellent adhesion of architectural coatings and electric welding;

③ Electro-galvanized sheet. The production of this type of galvanized sheet by electroplating has excellent process performance. However, the coating is thin, and the corrosion resistance is not as good as that of hot-dip galvanized sheet;

④Single-sided and double-sided galvanized sheet. Single and double-sided galvanized sheet, that is, goods that are hot-dip galvanized on only one side. In terms of electric welding, spraying, anti-rust treatment, production and processing, etc., it has stronger adaptability than double-sided galvanized sheet. In order to get rid of the defect of uncoated zinc on both sides, there is another kind of galvanized sheet coated with chromatographic zinc on the other side, that is, galvanized sheet with difference on both sides;