With the development of science and technology, a large number of aluminum plate manufacturers have emerged, and the utilization rate of aluminum plate is higher and higher. The oxidation treatment of aluminum and its alloys can be divided into chemical oxidation and electrochemical oxidation. For the purpose of decoration, it is often necessary to carry out coloring treatment. The coloring methods include chemical coloring and electrolytic coloring.
The film obtained by chemical oxidation is thin, soft and not wear-resistant, and its corrosion resistance is lower than that of anodic oxidation film, so it is not suitable to be used alone. Due to the good adsorption capacity of chemical oxide film, it mainly acts as the bottom layer of paint. The thickness of anodic oxidation film is about 5-20 μ M. it has high hardness, good heat resistance and insulation, higher corrosion resistance than chemical oxide film, porous and good adsorption capacity.
Many aluminum plate manufacturers will be more concerned about this. Chemical oxidation treatment requires simple equipment, easy operation, high production efficiency and low cost, wide application range, not limited by the size and shape of parts, can oxidize large parts and assemblies. Coating after chemical oxidation can effectively improve the corrosion resistance of parts.
The comprehensive properties of aluminum anodic oxide film are better than that of chemical oxide film, and its application is more extensive
(1) Protection. Improve the wear resistance, corrosion resistance and weather corrosion resistance of parts.
(2) Decorative. It is made of natural color bright film and regarded as color film.
(3) Insulation. As capacitor dielectric film, aluminum coil insulation film, can withstand 25V voltage per micron thickness.
(4) Improve the binding force with organic coating, as the bottom coating.
(5) Improve the binding force with inorganic coating, and make the bottom layer of electroplating and enamel.
The above is about some characteristics of aluminum oxidation, if you have more questions, welcome to Decheng aluminum for business negotiation and cooperation, the company's perennial aluminum plate wholesale, welcome to consult!