What is the function of oxide film on industrial aluminum profiles?

Alumina film is a dense and transparent protective film. Alumina has stable chemical properties and is very resistant to corrosion. The oxide film of pure aluminum is even more corrosion-resistant than the oxide film of aluminum profile.

2, high hardness

The oxide film on the surface of anodic oxidation industrial aluminum profile is higher than the aluminum matrix itself, which plays a role in protecting aluminum profile. The oxide film also plays the role of wear resistance, and the porous oxide film has the ability to absorb lubricant, which makes the surface of industrial aluminum profiles more wear-resistant.

3. Thermal insulation

The anodic oxide film of industrial aluminum profile is not a metal substance, and alumina is a good insulating material because it is not conductive. It is especially suitable for some electronic and electrical equipment manufacturers.

4. Thermal insulation

The thermal conductivity of anodic oxide film is much lower than that of aluminum profile matrix. Alumina film can withstand the highest temperature of 1500℃, while aluminum profile matrix can only withstand the highest temperature of 660℃.

5. adsorption. James Metal believes that the anodic oxide film of industrial aluminum profiles has a porous structure and strong adsorption capacity, so it is filled with various pigments, lubricants, resins and so on. Entering the air hole can further improve the protection, insulation, wear resistance and decoration of aluminum products.