Hardware spray processing, spraying sand hung hardware appliances (certified), spray processing provided by the Dongguan City, Sha Hong Hardware Appliance Co., Ltd.. Dongguan City, Sha Hong Hardware Appliance Co., Ltd. (www.dgshahong.com) is specialized in the "spray processing, electrical coating, metal spraying, shade spraying, roller coating, ceramic coating" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Sha. Dusting powder coating process is also known as arc spraying process, developed rapidly in recent decades a new coating process spraying processing, raw material used is plastic powder. As early as in the 1940s, some countries began to research experiments Yu Jin spraying plants, but progress is slow. 1954 Germany James polyethylene fluidized bed coating method is successful, after 1962 Semmes French invented powder electrostatic spraying, powder coating began in the production formally adopted in recent years as countries on the environment protection of attention, no water and atmospheric pollution powder coating spray processing hardware, has been developing rapidly. End electrostatic spraying, spraying quality factors in addition to the surface pre-treatment quality is good or bad, and spraying time, in the form of spray gun, spray voltage, dusting the amount of powder conductivity, particle size, particle size, powder and air mixture The velocity gradient and so on. Powder resistivity: The powder resistivity at 1010 ~ 1016 ohm / cm is preferable, the resistivity is too low in the dispersion is easy to produce a powder, the resistivity is too high will affect coating thickness.