In the low-pressure cold spray skills, nitrogen or air is pressurized to 70 to 15 pounds / square inch metal paint, and spray powder in the downstream side of the nozzle portion of the write radially divergent. Low pressure cold spray system is portable, more economical operation of the painting process, the particles speed up to 800 m / sec. Portable cold spray machine can be used for aluminum, copper, zinc and other metals combined spraying. Easy with characteristic low-pressure cold spray machine is more suitable for outdoor conservation and correction. A useful way to generate cold spray skills are thick on the aluminum magnesium alloy outer coating, the way was prepared for the appearance of demand is not high, and the mechanical or thermal characteristics plated pieces without regard. Magnesium aluminum coating exhibits elements have to avoid all kinds of talent and galvanic corrosion. Many hours, only steel fasteners in demand around the battery corrosion maintenance, and precisely the kind of cold spray the exposed outer partial maintenance of magnesium innovation skills. Processing impurities. Phosphate slag mainly caused by large particles of impurities and phosphate film yellow rust caused by small impurities into the film. And only when the clean-up slot with phosphate slag accumulation spray painting line in price, in proportion to control the concentration of the phosphate bath. Water impurities. Mainly the water, a small amount of sand used are salt, which had caused large impurities. Increased water filter that uses water to do for the last two stages of cleaning water. Curing oven impurities. In the wall for thorough cleaning the oven with a damp cloth and vacuum cleaner, with a focus crevice chain hanging duct. If it is a large black particulate impurities need to check the air filter is damaged at tube with the change in time. Powder impurities. Mainly powder additive excessive, uneven pigment dispersion, powder pink points by pressing cause. Improve powder quality, improved powder storage mode. Dusting indoor contaminants. Mainly dust, clothing fibers, abrasive particles and dusting equipment system fouling. Just a day before the start dusting with compressed air purge systems, thoroughly clean with a damp cloth and vacuum cleaner dusting equipment and powder room. Hoisting chain impurities. Mainly hoisting chain baffle plate and a spreader drain pan (made of hot galvanized plate) is pre-treatment acid, alkali vapor corrosion product after. Regular cleaning of these facilities as long as paint spray booth air supply and exhaust systems are an important way to complete these indicators. The air supply system is an important means of energy consumption by spray chamber (fresh air through dust filtration, cooling in summer cooling and winter heating up painting, and adjusted to the proper humidity). In order to try to save energy, the new spray booths taken effective energy-saving measures. Again is energy-saving measures drying room, drying room paint shop is the main consumer of energy. Sheet metal painting hung metal appliances spraying sand _ _ Wangniudun painting by Dongguan City, Sha Hong Hardware Electric Co. Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) is an industry leader in Dongguan, Guangdong, spraying equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Hong Hardware Appliance spraying sand leadership with the staff warmly welcome all inquiries negotiations to create a sand painting hung Hardware Appliance better future.