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锌铝镁是合金金属材质，主要用作钢铁和钢铁产品的表面防腐处理，包括各种锌系列镀层和大量钢的整体浸蚀防腐。

最初用作钢铁产品表面防腐处理的金属是纯锌，随着技术的发展，铝锌合金和锌铝镁合金等合金金属陆续出现，金属层的防腐效果增大。与热镀锌、

镀锌铝、锌铁合金等传统镀层相比，锌铝镁镀层具有更优异的耐腐蚀性能。锌铝镁钢板镀层中添加了Al、Mg及Si等合金元素，

大大提高镀层腐蚀抑制效果，与普通的镀锌产品相比，镀层附着量少却能实现更出色的耐腐蚀性。

Zinc aluminum magnesium is alloy metal material, mainly used as the surface corrosion treatment of steel and steel products,

including various zinc series coating and a large number of steel overall immersion corrosion.

The metal originally used as the surface anticorrosion treatment of steel products is pure zinc. With the development of technology,

alloy metals such as aluminum zinc alloy and zinc aluminum magnesium alloy appear one after another, and the anticorrosion effect of the metal layer has increased.Compared with traditional coatings such as hot-dip galvanizing, galvanized aluminum, zinc and ferroalloy, zinc,

aluminum and magnesium coating has more excellent corrosion resistance.Al, Mg and Si are added to the zinc, aluminum and magnesium steel plating,

which greatly improves the coating corrosion inhibition effect. Compared with ordinary galvanized products,

the coating attaches less but can achieve better corrosion resistance.