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Plating technology for anticorrosive coating of galvanized crane
This hot-dip galvanizing process not only has the corrosion resistance characteristics of galvanizing, but also has zinc-iron alloy layer. It also has a strong corrosion resistance which can not be compared with that of zinc plating. Therefore, this plating method is especially suitable for strong corrosive environments such as strong acids and alkali fogs.
Hot-dip galvanizing is to immerse the rust-removing steel components in the molten zinc solution at about 600 C, so that the steel components are coated with zinc, so as to prevent corrosion. If the two ends of the hot-dip galvanizing process are closed, the air in the pipe will expand and the head plate will burst, thus causing safety accidents. If the hot dip galvanizing process is closed at one end, the flow of the zinc solution is poor and easy to store in the pipe.
Because of the high processing temperature of hot-dip galvanizing, it is easy to annealing the materials with low tempering temperature in the process of galvanizing, thus reducing the hardness.