1. Al, Mg, Si and other alloy elements are added to the coating of hot-dip galvanized aluminum-magnesium steel, which greatly improves the corrosion inhibition effect of the coating. Compared with ordinary galvanized products, the coating has less adhesion but can achieve better corrosion resistance. , It is 10-20 times of hot-dip galvanized steel sheet.

2. The coating composition around the cutting surface continuously dissolves to form a dense protective film mainly composed of zinc hydroxide, alkaline zinc chloride and magnesium hydroxide. This protective film has low conductivity and inhibits the corrosion of the cut surface. Effect.

3. Due to the super corrosion resistance of 10-20 times that of ordinary hot-dip galvanized sheets and the corrosion-resistant self-healing effect of the cut section, the service life of components made of hot-dip galvanized aluminum-magnesium steel alloy coated sheets will naturally be very long , under normal circumstances, it can reach more than 30 years.