Galvanized steel panels are coated with a layer of metallic zinc on the surface to prevent corrosion on the surface of the steel panels and extend their service life. This zinc-coated steel panel is called a galvanized panel.

Dip the sheet into the molten zinc bath to make a layer of zinc sheet stick to the surface. The main use of continuous galvanized process production, that is, into a roll of steel continuous immersion in the melting of zinc plating tank to make galvanized steel; Alloyed galvanized steel sheet. This kind of steel plate is also made by hot dip method, but after the groove, it is heated to about 500℃ immediately, so that it produces an alloy coating of zinc and iron. This galvanized coil has good coating tightness and weldability.

Hot dip galvanizing is the reaction of molten metal with iron matrix to produce alloy layer, so that the matrix and the coating are combined. Hot dip galvanizing is the first steel parts for pickling, in order to remove iron oxide on the surface of steel parts, after pickling, through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank for cleaning, and then into the hot dip plating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

The material of DX51D galvanized sheet is a non-ferrous alloy composed of zinc as matrix and other elements. The main alloy elements are aluminum, copper, magnesium and so on. Zinc alloy has low melting point, good fluidity, easy plastic processing and welding, and resistance to atmospheric corrosion. According to the manufacturing process, it is divided into cast zinc alloy and deformed zinc alloy. The commonly used cast zinc alloy is zn-al-copper-magnesium alloy, which has good casting process performance and little effect on mechanical properties of cooling speed. They are mainly used in the manufacture of machine parts, toys, decorations and household appliances.

Galvanized products are widely used in industry, agriculture, animal husbandry and fishery, energy, transportation, chemical industry, light industry, home appliances, construction, communications, national defense and other fields.