Skate details of the device high voltage generated by static electricity, the needle electrodes located at a low current so that the front portion of the gun discharge in air, when the powder is discharged when the tip of the nozzle, the powder particles are brought to the charged aluminum coating process, by electrostatic adsorption and air transportation to reach the dual role has been grounded surface. Spray gun capable of generating sufficient voltage to ensure maximum coating effects, the maximum voltage up to 100kV, when spraying inside or deep cavity portions when the gun can effectively overcome the Faraday cage effect spraying processing, each be required to ensure that the workpiece coating surface to achieve good coverage and a uniform film thickness. HVOF device uses kerosene as fuel, the use of oxygen and compressed air as oxidizer gas spraying process, the control unit will kerosene and accelerant to a certain pressure and flow delivered to the spray gun and processing network, the high-performance mixed atomizing spray nozzle After a liquid mist sprayed into the gun chamber, liquid mist by the spark plug ignition combustion temperature and high pressure gas formation, Laval gun to accelerate to supersonic. HVOF spraying powder powder feeding system into a supersonic jet from the Laval nozzle area of ??low pressure spray gun, after warming accelerates the jet ejected from the gun, high speed sprayed surface coating deposition. As the multi HVOF technique using oxygen and compressed air can be two kinds of accelerant, along with HVOF and HVAF functionality, speed and temperature of the flame in a large flow range continuously adjustable. pu spray processing, spray processing, spraying sand hung hardware appliances provided by the Dongguan City, Sha Hong Hardware Appliance Co., Ltd.. Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) strong, credible, in Dongguan, Guangdong spraying equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sand painting hung hardware appliances into the brilliant and you work for a better future!