Galvanized processing-Dalian HanPuJiangXin Precision Machinery Co.

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Galvanized processing

Release time：2020-04-10

Zinc soluble in acid, but also soluble in alkali, so it is called amphoteric metal. Zinc changes little in the dry air. In moist air, a dense alkaline zinc carbonate film forms on the zinc surface. In the atmosphere containing sulfur dioxide, hydrogen sulfide and Marine, the corrosion resistance of zinc is poor, especially in the atmosphere containing organic acid at high temperature and high humidity, zinc coating is easy to be corroded. The standard electrode potential of zinc is -0.76v, for the steel substrate, zinc coating belongs to the anodic coating, it is mainly used to prevent the corrosion of steel, its protection performance and the thickness of the coating is very important. Zinc coating after passivation, dyeing or coating with protective light agent can significantly improve its protection and decoration.

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Galvanized processing

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