1. Hot-Dip Galvanizing

Hot-dip galvanizing is to immerse steel materials in molten zinc liquid so that zinc reacts with the steel surface to form a tight zinc layer, thereby achieving the purpose of corrosion protection.

Advantages

Strong corrosion resistance: The hot-dip galvanizing layer is thick and can provide long-term anti-corrosion protection. It is particularly suitable for steel exposed to harsh environments, such as marine environments, humid areas, and industrial sites.

Uniform protective layer: The zinc layer of hot-dip galvanizing is very uniform, which can effectively prevent local corrosion.

Good wear resistance: Due to the large thickness of the zinc layer, the wear resistance and durability of hot-dip galvanized materials are better than cold-dip galvanizing.

Antioxidation: The hot-dip galvanizing layer has good resistance to oxygen and moisture, and is suitable for long-term use.

Disadvantages

High production cost: Hot-dip galvanizing requires a large amount of zinc liquid and the processing process is complicated, so the cost is high.

Rough surface: During the hot-dip galvanizing process, a rough surface will be formed when the zinc liquid contacts the metal surface, which may affect some products that require a smooth surface.

Not suitable for small-scale production: Due to the high requirements for equipment and process, hot-dip galvanizing is more suitable for large-scale production and not suitable for small-scale production.

2. Cold galvanizing

Cold galvanizing usually refers to the coating of zinc on the