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The difference between anodizing and hot-dip galvanizing

  • Author:Zoe Jia
  • Release on:2023-10-19
First, the definition of anodizing and hot-dip galvanizing
1. Anodizing is a surface treatment method that forms an oxide layer on the metal surface through electrochemical reaction, which is often used to enhance the corrosion resistance, hardness, brightness and aesthetics of the metal surface.
2. Hot-dip galvanizing is a surface treatment method in which metal objects are immersed in molten zinc and plated on the surface of the object to form a layer of plating, which is often used to enhance the corrosion resistance and aesthetics of metal surfaces.
Second, the characteristics of anodizing and hot-dip galvanizing
1. The characteristics of anodizing include: hard oxide layer, corrosion resistance, good insulation performance, not easy to fall off, diverse colors, obvious brightening effect for bright aluminum products, etc.;
2. The characteristics of hot-dip galvanizing include: good corrosion resistance, simple operation, beautiful appearance, and controllable coating thickness.
Third, anodizing and hot-dip galvanizing process
1. The process of anodizing mainly includes: surface cleaning, anodizing, dyeing, sealing and other steps;
2. The process of hot-dip galvanizing mainly includes: surface cleaning, pickling, drying, soaking zinc melt, plating and other steps.
Fourth, anodizing and hot-dip galvanizing occasions
1. Anodizing is often used for the surface treatment of aluminum plates, products, glass, etc.;
2. Hot-dip galvanizing is commonly used for surface treatment of steel products, iron products and copper products.
Fifth, the advantages and disadvantages of anodic oxidation and hot-dip galvanizing
1. The advantages of anodizing include: it can improve the hardness and corrosion resistance of aluminum products, maintain easy cleaning, no plating pollution, etc.;
2. The advantages of hot-dip galvanizing include: the ability to make its plating form a solid alloy layer with the metal matrix, with good corrosion resistance and mechanical properties.
VI. Conclusion
In general, although anodizing and hot-dip galvanizing are common surface treatments, they each have different definitions, characteristics, processes, occasions of use and advantages and disadvantages. In the actual use process, it is necessary to choose the appropriate surface treatment according to different needs.
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