Second, the coating line coating process reasons: 1 is coated on the surface treatment is not clean, when degreasing degreasing step prior to painting process without a net, or on a rough surface to be coated pinhole left oil pipe wall spray phosphating oil still remaining on the object to be coated, the coating formed prone to shrinkage, so be sure to pre-treatment process clean and complete. 2. The surface to be painted uneven spray, holding other cast iron, aluminum and hot rolled steel and other uneven surfaces to be coated aluminum coating pre-treatment, the presence of pores spray bottle, in the coating process, the coating melt stream level, thermal expansion of the air in the pores will bulge being cured coating, if the coating is not leveling will form craters. Workaround: Preheat then be coated paint, to avoid the phenomenon of expansion of the air bursting film; adding anti-foaming agent in the coating, which enables to reduce the surface tension of the molten coating leveling process, so be painted pore air to escape and timely film heal quickly. Electrostatic spraying spraying spraying equipment how fire main problem is highly fragmented mist and out of the volatile solvent, not only pollute the environment, the spraying process is not conducive to human health and a waste of paint, resulting in economic losses. Large flow of low pressure atomized spray of low pressure and low air atomized jet velocity, low speed atomizing paint coating improves the situation from the rebound out of painted surfaces. Electrostatic spray equipment when spraying the main high voltage electric field by force, usually in the more than sixty thousand volts. When the voltage reaches an electrostatic spray equipment when spraying the main high voltage electric field by force, usually in the more than sixty thousand volts. When the voltage reaches a million volts of time, if the gun away from the work reduction to one centimeter, there will be circumstances discharge ignition, and combustible gas spray, met spark a fire phenomenon will occur, the following are some effective fire measures. 1, the gun and the workpiece to maintain a safe distance and try to fixed, not that it oscillates and dislocated appear. 2, painting places inside have adequate fire-fighting tools. 3, spray the operating room is required to have good ventilation. 4, electrostatic spray operations room should be separated from the high voltage generator. Electrostatic paint spraying equipment operating room electrical equipment should be explosion-proof type. Spray bottle | spraying | Sha Hong Hardware Electric spray provided by the Dongguan City, Sha Hong Hardware Electric Co. 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 Hong Hardware Appliance sand spraying into the brilliant and you work for a better future!