1. Improved Corrosion Resistance: The oxide film formed by anodizing has high density and stability, effectively preventing water and corrosive media from eroding the substrate, thus improving the corrosion resistance of aluminum and its alloys.
2. Improved Wear Resistance: The anodized film has high hardness and good wear resistance, which can improve the wear resistance of aluminum and its alloys and extend their service life.
3. Enhanced Decorative Properties: By adjusting the composition of the electrolyte and process parameters, anodized films of different colors and textures can be prepared, improving the decorative properties of aluminum and its alloys.
4. Insulation Properties: Under certain conditions, anodized films can exhibit good insulation properties, making them suitable for preparing insulating materials and electronic devices.
5. Other Applications: In addition to the above applications, anodizing can also be used to prepare anti-counterfeiting labels, optical components, and other fields.

