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Hot dip galvanized sheet classification

According to the production and processing methods can be divided into the following categories:
① hot-dip galvanized steel. The sheet is immersed in a molten zinc bath
So that the surface of a thin layer of zinc plate adhesion. At present, the main continuous galvanizing process, that is, the coil into a continuous dip in zinc bath plating bath made of galvanized steel;
② alloy galvanized steel. This steel plate is also made by hot-dip method, but immediately after it is discharged, it is heated to about 500 ° C to produce an alloy film of zinc and iron. This galvanized sheet has good adhesion and weldability;
③ galvanized steel. The electroplating method for producing this galvanized steel sheet has good workability. But the coating is thin, corrosion resistance than hot dip galvanized sheet;
④ single-sided plating and double-sided poor galvanized steel. Single-sided galvanized steel, galvanized products only on one side. In welding, painting, anti-rust treatment, processing, etc., with better than the double-sided galvanized plate adaptability.
In order to overcome the shortcoming of uncoated zinc on one side, there is another kind of galvanized sheet coated with a thin layer of zinc on the other side, namely the double-sided poor galvanized sheet;
⑤ alloy, composite galvanized steel. It is made of zinc and other metals such as aluminum, lead, zinc and other alloys or composite plating plate. This plate not only has excellent anti-rust properties, but also a good coating performance;
In addition to the above five, there are color galvanized steel, galvanized steel printing and coating, PVC laminated galvanized steel. However, the hot-dip galvanized sheet is still the most commonly used.

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