Aluminum from aluminum and other alloying elements manufactured products. Usually the first to be processed into cast products, forged products and foil, sheet, strip, tube, after the rods, profiles, etc., and then by cold bending, sawing, drilling, assembly, painting and other processes made. The main metallic element is aluminum, plus some alloying elements in aluminum products processing equipment, improve the performance of aluminum. After the welding process (1) to remain in the vicinity of the weld and the remaining flux and welding slag will destroy the aluminum surface passivation film of aluminum products processing after welding, sometimes corrode aluminum parts aluminum products processing, should be cleaned. Simple shape, the general requirements of the workpiece can be simply washed with hot water or steam method of blowing brush cleaning. Demanding and complex shape of aluminum parts in hot water with a stiff brush to scrub, then at about 60 ℃ ~ 80 ℃, the concentration of 2% to 3% aqueous solution of chromic acid or potassium dichromate solution immersion 5 min ~ 10 min precision aluminum products processing, and scrub with a stiff brush, then washed in hot water for washing, drying oven or with a hot air dryer can also be dry. (2) post-weld heat treatment of aluminum containers generally do not require post-weld heat treatment. led aluminum products processing, gold-precision (certified), Qingyuan aluminum products processing provided by Huizhou Hing Precision Parts Co., Ltd.. Huizhou Hing Precision Parts Co., Ltd. (hzjxbp.com) (www.hzjxbp.com) is an industry leader in Huizhou, Guangdong, the standard mold, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In the gold-Precision leadership with the staff warmly welcome all inquiries negotiations to create a gold-precision better future.