The electrolysis process, the role of oxygen anion produces aluminum oxide film. Shihai early this film is not thin enough, there is a certain resistance, the electrolyte in the negative oxygen ions can still reach the surface continues to form an aluminum oxide film. With the growth of the processing of the film thickness, the resistance becomes larger, the electrolytic current becomes smaller, and the outer layer oxide film while in contact with the electrolyte chemical dissolution rate of the aluminum oxide formed on the surface of the chemical balance and gradually dissolve speed, which an oxide film can reach a maximum thickness of the electrolysis parameter. Structure and other conversion coatings on aluminum anodic oxide films are different CNC computer gongs processing plant near the base metal portion of the dense layer of 0.01 to 0.1 microns, which is a honeycomb-like layer on the plurality of hollow cylinder composed of hexagonal, total a thickness ranging from 2 to 100 microns. Low temperature, dissolved weak electrolyte and high voltage (100 to 150 volts) aluminum lathe, can form a hard anodic oxide film engineering for mechanical parts and hydraulic contact with the fiber, paper and rubber element. In general anodized aluminum layer hexagonal hollow cylinder filled PTFE, you can get low coefficient of friction parts. --- Hardened film anodized film of aluminum (aluminum) and aluminum (Si-Al, Mg-Al) formed on the surface thereof, having a high hardness, microhardness of HV = 350 ~ 500KG / mm (hardness than the matrix 400 times), a thickness of about 35 ~ 55μm. Shenzhen CNC lathe machining | machining | Hongrun Hongrun by Dongguan Shijie Hardware Products Factory. Hongrun Dongguan Shijie Hardware Products Factory (dghrwj1688.1688.com) strong, credible, in Dongguan, Guangdong hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hong Run and you work into the brilliant, for a better future!