Hydrolysis of aluminum salt hydrolysis closed metal closure principle is, 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, filling holes in the membrane inside, so as to achieve the purpose of closing 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 Alto Outokumpu Group subsidiary Thermco Ovens Thermcon after evaluating various furnace design, design a new smelting refining furnace, with a heat storage type burner, the burner can capture the heat of the flue gases to preheat combustion air , CNC, energy representative of 490-560kwh / t, in the use of regenerative burning heat in the flue gas is oxidized to remove volatiles dioxides and furans, these things especially in the deep aluminum scrap in generating it. The new furnace dioxides and furan emissions quantity 0.01Ng / Nm3, below the saturation limit 0.01Ng / Nm3. 2. India's aluminum ash processing (processing of ovross in India) According to the information reported worldwide annually produce about 3.5 million tons of aluminum ash, while only about half of treated processed into aluminum, aluminum recovery from decades ago 30 % to now 65%. This chemical reaction is exothermic, so after skimming to avoid wherein the aluminum oxide and turn into smoke, CNC turning stainless steel, aluminum ash must be quickly cooled down. Melting aluminum scrap is meant to produce more aluminum gray, precision parts CNC lathe, generally 10% of the aluminum loss in India is an annual loss of 120,000 tons of aluminum, and aluminum in aluminum production loss of 1-2% , CNC machining, an annual loss of 1.5 million tons. Therefore, countries such as India recovered from aluminum in the aluminum becomes increasingly important. India is expanding scrap recycling industry, its production capacity over 1.2 million tons / year, while aluminum production capacity in India is about 100 tons / year. Indian scrap recycling capacity and electrolytic aluminum production capacity in the next five years will double. CNC turning stainless steel _ Hong Run (Online) _CNC by Hongrun Dongguan Shijie Hardware Products Factory. Hongrun Dongguan Shijie Hardware Products Factory (dghrwj1688.1688.com) is Dongguan, hardware accessories leader over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Hongrun leadership with the staff warmly welcome all inquiries negotiations to create a better future for Hong Run.