There are several different names for the name of anodized aluminum label. Usually its residential name is commonly called electrochemical oxidation of metal or alloy. The modern name is called anode label or oxidation label, and the professional name is sulfuric acid anodizing.

The film layer of aluminum and aluminum alloy after anodic oxidation has similar advantages:

(1) Higher hardness

Usually, its hardness is related to the alloy composition of aluminum and the technical conditions of the electrolyte during anodization. The anodic oxide film not only has higher hardness, but also has better wear resistance. In particular, the porous oxide film on the surface layer has the ability to adsorb lubricant and can further improve the wear resistance of the surface.

(2) High corrosion resistance

This is due to the high chemical stability of the anodic oxide film. . Generally, the film obtained after anodic oxidation must be sealed to improve its corrosion resistance.

(3) has a strong adsorption capacity

The anodic oxide film of aluminum and aluminum alloy has a porous structure and has a strong adsorption capacity

(4) Good insulation performance

The anodic oxide film of aluminum and aluminum alloy no longer possesses the conductive properties of metal, and becomes a good insulating material.

(5) Strong thermal insulation and heat resistance

This is because the thermal conductivity of aluminum anodic oxide film is much lower than that of pure aluminum. The anodic oxide film can withstand a temperature of about 1500°C, while pure aluminum can only withstand 660°C.

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