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What Material Is Anodized Aluminum?

2022-07-13

1. What is the material of anodized aluminum?
It is made of aluminum. The product is made of aluminum after secondary processing. The process adopts the method of oxidation, and the surface of the aluminum material will be coated with a film with a consistent high density to prevent further oxidation of the aluminum. It is different from ordinary oxide films. Yes, it is dyed by electrolytic coloring process, so the coating effect on the surface is better, and it is not easy to cause problems such as breakage and falling off.
2. How is anodized aluminum made?
1. Mechanical polishing
If the aluminum material is to be converted into anodized aluminum, it needs to be constructed on the surface of the material. The first step is polishing. There is a special polishing instrument to operate, which can ensure the polishing effect.
2. Chemical copper removal
There are more or less other impurities on the surface of aluminum, most of which are copper, because it is easy to rust, so it needs to be cleaned, which can be treated by chemical means.
3. Wash and remove oil
There are some oily substances on the surface of many aluminum materials, which are residues in the production and processing process. Before anodizing operation, alkaline substances or special agents need to be used to remove them.
4. Electric film formation
Put the treated aluminum material into the dilute sulfuric acid pool, then insert the electric rod into the pool, electrify the reaction, after a period of time, a white translucent film will be formed on the surface of the aluminum material, which is the oxide layer, which is porous of.
5. Stain and fix

After the aluminum material is successfully oxidized, it needs to be progressively dyed. The color can be adjusted according to the needs. After dyeing, heating or immersing in a chromate solution can close the surface pores, and the color will be fixed. The surface is more beautiful. the anodized layer.

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