2) mechanical cleaning: the workpiece size is larger, longer production cycle, multi-layer welding or chemical contamination after cleaning precision aluminum products processing, often using mechanical cleaning. With acetone, gasoline and other organic solvents to wipe the surface of the copper and aluminum products processing oil, followed directly with a diameter of 0.15 mm ~ 0.2 mm copper wire brush or steel wire brush aluminum products processing, brush to the exposed metallic luster so far. Generally should not use the wheel or ordinary sandpaper, in order to avoid sand left on the metal surface, into the bath defects such as slag generated during welding. There is also available scraper, rasp and other clean-up surface to be welded. After clean-up, such as storage periods of time (such as more than 24 h) should be re-processed. 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, rods, profiles and other aluminum products after processing oxide, and then the cold bending, sawing, drilling, assembly, painting and other processes made. The main metallic element is aluminum, plus a number of alloying elements to improve the performance of aluminum. Aluminum products processing oxide | Kim Hing Precision (certified) | Huizhou 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.