ã€China Aluminum Network】Aluminum extrusions encountered surface problems in the machining process, and will be oxidized after film formation, and will always be affected by some impurities. Solving these problems is a headache for many companies. The measures for the surface treatment of aluminum profiles are mentioned below. Of course, companies can develop better film-forming techniques to fight oxidation if they have the conditions. First of all, the speed of aluminum film formation is different from that of aluminum profiles of different types. After electrical chemical conversion treatment, the difference in appearance color is more obvious than the difference in oxide film obtained due to different process recipes. The purity of aluminum is high and the deposition rate is slow. If the purity of aluminum is low, the opposite is true. Therefore, the oxidation needs to be different according to different aluminum materials. To do this, different models of aluminum parts are not allowed to be bundled in the same string, so as to avoid being able to control their respective proper oxidation time. Chemical treatment and mechanical treatment, or direct chemical treatment. For severely oxidized metal surfaces, the oxide layer is thicker and aluminum profiles cannot be directly cleaned with solvents and chemically treated, but mechanical treatment is preferred.