Definition of anodized aluminum in accordance with national standards: an electrolytic oxidation process, the surface of the aluminum or aluminum alloy process generally translate into an oxide film, which has a protective layer of film, decorative as well as a number of other features. Anodized aluminum departure from this definition to include only this part of the process to generate anodic oxide film. As the name suggests, liquid aluminum in the cell should be connected to the positive external power supply as the anode, and the cathode of the electrolytic cell was connected to the negative external power source, the applied voltage to maintain the current through the electrochemical oxidation reaction. The reaction of aluminum anodizing process in which the presence of oxide film formation and dissolution, while two rival aluminum products factory in Dongguan, depending on the final status of the two surfaces of the relative size of the reaction rate decision. Conventional aluminum alkaline etching process time long aluminum lathe, tend to be "over-etching"; high-temperature treatment, easy to produce white speckled, alkali mist escaping cause environmental pollution; etching to remove the residual alkali lye and black hanging need to be neutralized ash, complex process. To solve this problem, Dongguan CNC lathes machining, the characteristics of the old and new technology were compared, the completion of three processes proposed in the same slot, which uses an acidic etching solution (containing etchant additive K-301) of the new processes. The new process can be reduced to oil at room temperature and the oxide film on aluminum processing, access to bright, smooth, clean surface, without lye, aluminum consumption, less precipitation bath, reduce pollution, environmentally friendly. It also describes the components, features, and the role of K-301 etching agent. Removal of conventional alkaline etching process to anodic film, long time, high temperature, alkali mist to escape pollution. Tuomo new technology environmentally friendly process (K-302 Acid release agent), at room temperature in processing, no pollution. Dongguan CNC lathes, 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!