surface treatment
The surface corrosion resistance of extruded aluminum alloy profiles is not strong and must be surface treated by anodizing to increase the corrosion resistance, wear resistance and aesthetic appearance of the aluminum.
Its main process is:
Surface pretreatment: Use chemical or physical methods to clean the surface of the profile to expose the pure matrix, so as to obtain a complete and dense artificial oxide film. Mirror or matte (matte) surfaces can also be obtained by mechanical means.
