Introduction to anodizing
Anodizing is a surface treatment process that uses electrochemistry to form an Al2O3 (alumina) film on the surface of aluminum and aluminum alloys. Through anodizing, the surface state and performance of the material can be changed, thereby improving corrosion resistance, enhancing wear resistance and hardness, and protecting the metal surface. Non-ferrous metals or their alloys (such as aluminum, magnesium and their alloys) can be anodized. The method is widely used in mechanical parts, aircraft and automotive parts, precision instruments and radio equipment, daily necessities and architectural decoration.
Anodizing type
| TypeⅠAnodizing | Type Ⅱ Anodizing | Type Ⅲ Anodizing | |
| Materials | Aluminum | Aluminum | Aluminum |
| Color | Clear | Clear, black, blue, gold, grey, red, etc. | Clear, black |
| Texture | Smooth, matte finish. | Smooth, matte finish. | Smooth, matte finish. |
| Thickness | 0.08-0.25 um | 1.8 μm to 25 μm (0.00007″) | > 0.001″ |
| CorrosionResistance | Good | Good | Excellent |
| Wear Resistance | Poor | Moderate | Excellent |
| Porosity | Low | Moderate to High | High |
| Environment Friendly | No | Yes | Yes |
Anodizing gallery
Advantages of anodizing
1. Improved corrosion resistance
The oxide film formed by anodic oxidation has high density and stability, which can effectively block the erosion of water and corrosive media on the matrix, and improve the corrosion resistance of aluminum and its alloys.
2. Improved wear resistance
The anodized film has higher hardness and good wear resistance, which can improve the wear resistance of aluminum and its alloys and extend its service life.
3. Improve decoration
By adjusting the composition and process parameters of the electrolyte, anodic oxidation films of different colors and textures can be prepared to improve the decorative performance of aluminum and its alloys.
4. Excellent insulation performance
Under certain conditions, the anodic oxide film can have good insulation performance, which is used for the preparation of insulating materials and electronic devices.
5. Strong adsorption capacity
The anodic oxide film has a porous structure, which gives it a strong adsorption capacity. Various pigments, lubricants, resins and other substances can be filled in the pores of the oxide film to further improve the protection, decorative performance or other special functions of the metal material.
Anodizing application
Aerospace: Used for surface treatment of aircraft structural parts, engine parts, etc., to improve corrosion resistance, wear resistance and corrosion resistance.
Automotive industry: Used for the surface treatment of automotive wheels, decorative strips, grilles and other parts to enhance their corrosion resistance and beauty.
Construction field: Used for the surface treatment of aluminum alloy doors and Windows, curtain walls, stair handrails and other building materials to improve their corrosion resistance and beauty.
Electronic products: Used in the production of mobile phones, tablets, TV and other electronic products shell, enhance its scratch resistance and durability.
Household items: aluminum alloy furniture frame, table and chair legs, kitchen and bathroom hardware accessories, such as faucets, handles surface treatment.
Adhering to the quality is the life principle of the enterprise, to provide your customized needs, and through the engineer quotation, we will use the most advanced technology and professional knowledge to provide you with high quality and low price products to meet your needs.
