Galvanized aluminum magnesium is a new type of coating product with high corrosion resistance. The coating composition is mainly zinc, and the content of added aluminum and magnesium is between 1.5% and 8% (the overall magnesium content is not less than 0.2%). The added magnesium (Mg) component is conducive to promoting a very stable formation state. And the well-organized and delicate protective film – hydrozincite (Zn5 (OH)8Cl2 ‧H2O) generates and maintains a film-like covering layer on the surface of the coating, thereby ensuring excellent corrosion resistance. Compared with traditional galvanized or galvanized products, galvanized aluminum-magnesium has better notch corrosion resistance, flat corrosion resistance, low friction coefficient and wear resistance. It can be used as the substrate of color-coated boards and is widely used It is used in automobile parts, air conditioners, solar photovoltaic brackets, animal husbandry, high-speed guardrails, electrical cabinets and roof and wall materials of steel structure buildings, etc.
- By adding magnesium and aluminum alloy elements, the plane corrosion resistance of zinc-aluminum-magnesium coating is about 3 times that of pure zinc coating.
- The friction coefficient of zinc-aluminum-magnesium coating is 15% lower than that of pure zinc coating, and it remains stable during the reciprocating friction process, so it has excellent forming ability.
- Compared with products such as aluminum or stainless steel, galvanized aluminum-magnesium is a more economical substitute