Hot-dip galvanizing, also called hot-dip galvanizing and hot-dip galvanizing, is an effective method of metal anti-corrosion. This method is mainly used in metal structure facilities in various industries. It immerses the rust-removed steel parts in molten zinc liquid at about 500°C so that a zinc layer is attached to the surface of the steel components, thereby achieving the purpose of anti-corrosion. This plating method gives the steel the corrosion resistance of electro-galvanized steel. And because it has a zinc-iron alloy layer, this method has strong corrosion resistance that cannot be matched by electro-galvanizing.

Among various coating methods for protecting steel substrates, hot-dip galvanizing is excellent. It is when zinc is in a liquid state, and after a very complex physical and chemical reaction, that the steel is not only plated with a thicker layer of pure zinc but also a zinc-iron alloy layer is formed. This plating method has the corrosion resistance characteristics of electroplated zinc and a zinc-iron alloy layer. It also has strong corrosion resistance that cannot be compared with electroplated zinc. Therefore, this plating method is particularly suitable for strong corrosive environments, such as strong acid and alkali mist.

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