Galvanized sheet refers to the steel sheet with galvanized surface. The zinc layer can effectively prevent the rust caused by the reaction between the steel sheet and the air or the change of chemical properties and mechanical properties caused by the contact with other substances, and can greatly improve the service life and stability of the steel.
Galvanized steel plate is divided into ordinary electrolytic plate and fingerprint resistant electrolytic plate. Fingerprint resistant plate is a fingerprint resistant treatment added to the ordinary electrolytic plate, which can resist perspiration. It is generally used on parts that do not undergo any treatment, and the brand is secc-n. Ordinary electrolytic board can be divided into phosphating board and passivation board. Phosphating is commonly used. The brand is secc-p, commonly known as P material. Passivation plate can be divided into oiled and non oiled.They are mainly used in construction, home appliances, automobiles, containers, transportation, household industry and other fields. Especially in steel structure construction, automobile manufacturing, steel warehouse manufacturing and other industries. Their main characteristics are: strong corrosion resistance, good surface quality, benefit from deep processing, economic and practical. This kind of steel plate is also made by hot dip method, but after it is out of the groove, it is immediately heated to about 500 ℃ to form an alloy coating of zinc and iron. This kind of galvanized coil has good coating adhesion and weldability.
Aluminum zinc plated steel plate (sgld): it is a multiphase alloy material rich in aluminum and zinc. Because of the characteristics of aluminum and zinc, it has better properties than hot-dip galvanized steel plate (SGCC). Main characteristics: corrosion resistance, its ability is much higher than SGCC; Heat resistance; Heat conduction and heat reflection; Formability; Weldability Usage: it is used in some places requiring good reflectivity, such as the reflector inside the oven and the reflector of the electric cooker. Hot dip galvanized steel plate (SGCC) is generally used, aluminized galvanized steel plate (sgld) is deep stamping, and SGCE is ultra deep stamping.