The difference between zinc aluminum magnesium and hot dip galvanizing

First, the definition of zinc, aluminum, magnesium and hot dip galvanizing

Zinc-aluminum-magnesium is a new type of coating material, which is coated with zinc-aluminum-magnesium alloy on the surface of steel plate by electroplating process, and has better corrosion resistance and mechanical properties.

Hot dip galvanizing is to immerse the steel in the molten zinc liquid, through a chemical reaction to increase the temperature, so that the zinc and the steel surface to form a metal compound, forming a galvanized layer. Hot dip galvanizing has the characteristics of anti-corrosion, anti-oxidation and beautiful appearance.

Second, the characteristics of zinc, aluminum and magnesium and hot dip galvanizing

1. Zinc aluminum magnesium: the thickness of the galvanized layer is generally 15-25μm, but it has better corrosion resistance and mechanical properties. Zinc-aluminum-magnesium has better corrosion resistance and UV resistance than hot-dip galvanizing, and also has better processability and formability.

2. Hot dip galvanizing: the thickness of the galvanizing layer is generally 60-90μm, the galvanizing layer is uniform, the surface is smooth, the adhesion is strong, and the corrosion resistance is good. However, when the steel is exposed to acid rain, hot dip galvanizing will rust.

Third, the application field of zinc, aluminum and magnesium and hot dip galvanizing

1. Zinc aluminum magnesium: Due to its superior performance, it is widely used in high-end automobiles, home appliances, rail transit and other fields. In addition, zinc, aluminum and magnesium materials are the preferred materials for onshore wind power towers and offshore wind power towers.

2. Hot dip galvanizing: It is still the most widely used steel plate anticorrosive material in construction, power and other industries. Widely used in construction steel structure, household appliances, auto parts, aerospace and other fields.

Fourth, the difference between zinc, aluminum and magnesium and hot dip galvanizing

1. Coating thickness: the coating thickness of hot dip galvanized is generally larger than that of zinc, aluminum and magnesium materials.

2. Corrosion resistance: The corrosion resistance of zinc aluminum magnesium material is better than that of hot dip galvanized, especially in harsh environments such as ocean, air pollution and acid rain.

3. Mechanical properties: Zinc aluminum magnesium has better mechanical properties, especially bending, tensile and other aspects, with higher strength and toughness.