Black surface mechanical parts | Gold Mega Hardware (certified) | Songshanhu black

 After the first immersed in a solution of copper sulfide solution impregnation, or can be obtained from the reaction between copper sulfate and sodium arsenite green film: Orange film from antimony potassium tartrate and hydrogen sulfide obtained; bronzer can contain chlorine iron mixed solution of oxalic acid or ferrous sulfate, potassium ferrocyanide and potassium permanganate impregnated obtained ferric hydroxide generated lakes with gallic acid or gallic acid pyrophosphate reconcile, make it into dark. With 0.4 parts of chromium trioxide, 0.35 parts of sodium dichromate, 0.08 part of sodium fluoride, an aqueous surfactant solution (C9- alkylphenol ether) 0.5 parts dubbed, pH value 1.8, 50 ° will pass aluminum stearate treatment (50μm) immersion can be disseminated to give a pale yellow aluminum. 6 parts of the gold dissolved in aqua regia, with the amount of distilled water to dilute the other lime dissolved in 30 parts of 160 parts of distilled water, after 2 hours, the solution was added to the gold solution, lime, stationary 5-6 hours, tossed away the upper water, the gold Calcium chlorate precipitation; 1000ml of water was then added, and then sodium thiosulfate was added, heated for 10 minutes, not boiling, filtered, and the aluminum is immersed to blond. The cobalt acetate 10-30g / L at 50 degrees dip aluminum 2 minutes after cleaning, then immersed containing potassium permanganate 5-30g / L solution treated at 30 degrees 2 minutes, you can get the bronze. Exchange membrane electrolysis of sulfuric acid contains a considerable amount of free sulfur in some dilute salt solution, leaving the film with colored heavy metal compound, see Table -11. Before coloring the film with ammonia cleaning solution to remove residual sulfuric pores, which allows the generation of dissolved sulfide reduction, the film's tone thus enhancing the processing of aluminum oxide, also called aluminum anodized black surface processing machinery, aluminum or alloy in the appropriate electrolyte solution (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, black under certain conditions and impressed current role electrolysis. Anodic oxidation of aluminum or an alloy thereof, is formed on the surface of the aluminum oxide thin layer having a thickness of 5 to 20 m, the hard anodic oxide film of up to 60 to 200 microns. To meet the requirements of the new era, plastic bottles materials required to meet the market for packaging quality and quantity requirements, such as increasing the metal surface black, its development must be to conserve resources, save energy, easy to be recycled after use mechanical metal surface black, easy to dispose of the goods or easily degrade the environment kindly technology development as a starting point, plastic bottles, new materials, new processes, new technologies, new products continue to emerge, and the positive performance, multi-functional, active use of new energy, new technology, as well as to broaden the application of the field of plastic bottles and coordinated development of environmental development. On our alumina processing, the processing industry, we also use this technique to overcome a certain principle, on some of the major aluminum surface treatment, we are adopting some new handling and processing methods. 21st century is the century of environmental protection, environmental problems have become more important, resources and energy more tension, build a circular economy and society, and take the road of sustainable development has become a global focus and urgent tasks, and become all walks of life and human activity develop guidelines. Black surface mechanical parts | Gold Mega Hardware (certified) | by Dongguan Songshan black gold trillion surface treatment plant. Dongguan City trillion surface treatment plant (www.jinzhao168.com) is Dongguan, hardware accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Trillion in gold hardware leadership with the staff warmly welcome all inquiries negotiations to create gold hardware trillion a better future.