Oxidation processing is widely used in our lives. Aluminum and aluminum alloys are widely used in practical applications. Generally, oxidation treatment is required. What are the methods for aluminum oxidation processing? Here are four methods.

1. Natural oxidation

Although the cost of this aluminum oxidation method in Shandong is very low, there are many problems. Not only is it time-consuming, but the protective film formed on the surface is relatively thin, and its protective ability is relatively poor. Its thickness is about 0.5 to Between four microns. And this method will form a lot of holes, and the texture of the material is relatively soft,

This is not very obvious for the improvement of corrosion resistance and wear resistance. Of course, this method also has advantages, that is, it has strong adsorption.

2. Electrochemical oxidation

This aluminum oxidation method has a certain improvement in the thickness of the oxide film. Under normal circumstances, it can reach five to twenty microns, and the hardness is better than natural oxidation, and it also has a certain insulation line and heat resistance. , And the corrosion resistance formed by electrochemical oxidation is also very good.

3. Chemical oxidation

This method should be said to be one of the more commonly used now, it will be more convenient in operation, and has high production efficiency, and its applicability is relatively wide.

4. Anodizing

This aluminum oxidation in Shandong is now a very popular one. The aluminum material obtained by this method has been improved in various aspects. And for different products can use different concentrations of electrolyte, so the conditions of oxidation processing can be flexibly controlled.

Although aluminum and aluminum alloys can naturally form an oxide film in the atmosphere, the film is thin (40-50A) and loose and porous. It is an amorphous, uneven and discontinuous film, which cannot be used as a reliable protection and decoration.性 膜层。 Sex film. With the continuous development of the aluminum product processing industry, anodizing or chemical oxidation methods are more and more widely used in the industry to form an oxide film on the surface of aluminum and aluminum alloy parts to achieve the purpose of protection and decoration.

After aluminum or aluminum alloy parts after chemical or electrochemical polishing, after anodizing (aluminum oxidation) treatment, a smooth, bright, and highly transparent oxide film layer can be obtained. After dyeing, various bright colors can be obtained. s surface. If it is oxidized under certain specific technical conditions, a glaze-like film layer can also be formed on its surface, so that the surface of aluminum products can obtain a special decorative effect. According to incomplete statistics, China's current decorative oxidation technologies for aluminum and aluminum alloys have grown to dozens of types, making the development of China's aluminum products processing industry changing rapidly. Therefore: the role of aluminum alloy oxidation is protection and decoration.