Before the aluminum intermediate alloy is colored, it needs to carry out oxidation on the aluminum alloy profile first, and the extruded aluminum profile, whose appearance is not strong in corrosion resistance, must be carried out by Yang*oxidation to carry out the appearance emergency treatment to add the corrosion resistance, wear resistance and appearance of the aluminum profile.

　　The appearance of aluminum intermediate alloy pre-contingency treatment with chemical or physical methods of aluminum profile appearance clean-up, revealing the pure base material, in order to facilitate the acquisition of detailed, delicate human oxide film. It is also possible to obtain a mirror glass or no light (matte) appearance through mechanical equipment techniques.

　　Aluminum intermediate alloy of anodic * oxidation by the appearance of pre-emergency treatment of aluminum profiles, inevitable technical standards, the substrate exterior onset of anodic * oxidation, the formation of a fine, porous structure, strong adsorption of AL203 film layer.

　　The sealing of the aluminum intermediate alloy turns off the membrane pore porosity of the porous structure oxide film formed after anodic * oxidation, so that the oxide film pollution management, corrosion resistance and wear resistance. The oxide film is transparent without color, applying the strong adsorption of the oxide film before sealing the hole, absorbing and depositing some metal salts in the membrane pore, which can make the appearance of aluminum profiles appear in many colors other than the natural (silver), such as: gray-black, copper, orange and stainless steel plate color, etc.