1, hot dip galvanized steel sheet
The thin steel plate is immersed in the molten zinc bath, so that a thin steel plate with a layer of zinc adheres to the surface. At present, it is mainly produced by continuous galvanizing process, that is, continuous immersion of rolled steel sheets in a galvanized bath with molten zinc to make galvanized steel sheets;
2, alloyed galvanized steel sheet
This kind of steel plate is also manufactured by hot dipping method, but immediately after it is out of the groove, it is heated to about 500°C to form an alloy film of zinc and iron. This kind of galvanized sheet has good paint adhesion and weldability;
3, electro-galvanized steel sheet
The galvanized steel sheet produced by the electroplating method has good workability. But the coating is thinner, and the corrosion resistance is not as good as the hot-dip galvanized sheet;
4, single-sided and double-sided differential galvanized steel sheet
Single-sided galvanized steel sheet is a product that is galvanized on one side only. In welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheet. In order to overcome the shortcomings of uncoated zinc on one side, there is another galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet;
5. Alloy, composite galvanized steel sheet
It is a steel plate made of zinc and other metals such as aluminum, lead, zinc, etc., made of alloy or even composite plating. This kind of steel plate not only has excellent anti-rust performance, but also has good coating performance;
In addition to the above five types, there are color galvanized steel sheets, printed coated galvanized steel sheets, polyvinyl chloride laminated galvanized steel sheets, etc. But the most commonly used is still hot-dip galvanized sheet.
