Hot-dip galvanizing tubes react molten metal with an iron matrix to produce an alloy layer, thereby combining the matrix and the plating. Hot-dip galvanizing is performed by first pickling the steel pipe. In order to remove the iron oxide on the surface of the steel pipe, after pickling, cleaning is performed by an aqueous solution of ammonium chloride or zinc chloride or an aqueous solution of ammonium chloride and zinc chloride, and then fed into the tank. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The galvanized steel pipe substrate and the molten plating solution undergo complex physical and chemical reactions to form a corrosion-resistant and compact zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe base body. Therefore, its corrosion resistance is strong.
Galvanized steel refers to the galvanization of ordinary carbon steel construction can effectively prevent corrosion and rust of steel to extend the service life of steel, including zinc electroplating zinc and hot-dip galvanized. Generally used for building exterior walls, such as glass curtain walls, marble curtain walls, aluminum curtain walls to do columns and stress materials, or for outdoor telecommunications towers, highways and other open-air construction of steel called galvanized steel, which galvanized zinc electroplating and heat Dip galvanized.
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