Hydrolysis of aluminum salt hydrolysis closed metal closure principle is Jiangmen aluminum products processing plants, in addition to the closure during the hydration reaction Al2O3, mainly after the use of metal oxide film adsorption hydrolysis reaction of the hydroxide precipitate precipitation, filling holes in the membrane, so as to achieve the purpose of the closure of the oxide film. Hydrolysis of metal closure does not affect the color of the oxide film, and because between metal ions and organic dye molecules form metal complexes, thereby increasing the stability and fastness of dye. Thus, the metal salt hydrolysis method is particularly suitable for dyeing closed or colored protective, decorative oxide film. Aluminum products for the bright and smooth surface of the aluminum products, the molded aluminum products generally have been mechanical polishing. However, after mechanical polishing oxidized, only the oxide film to obtain a smooth, aluminum, gloss is often not enough. Requirements for high gloss decorative oxide film product, even after mechanical polishing chemical polishing or electrolytic polishing. High-purity aluminum or aluminum-magnesium alloy after chemical polishing or electrolytic polishing can be eligible for a high-gloss surface reflection coefficient, especially electrolytic polishing, it can get very satisfactory results. Unfortunately, the general three acid chemical polishing solution because it contains nitric (HNO3), aluminum products factory in Shenzhen, heating operation, the decomposition of nitrogen dioxide (NO2) gas produced "Dragon" nuisance. And the quality excellent and stable electrolytic polishing liquid contains chromic anhydride, resulting chromium-containing waste water, pollution of the environment, cause waste disposal problems. Zhongshan aluminum products processing plants, aluminum products, 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!