Thermal spraying is a surface strengthening technology, has been the focus of the promotion of new technology projects. It uses arc, plasma arc, gas-oxygen and other forms of heat source, the metal or non-metallic materials heated to melt or semi-molten state, and under the action of high-speed air so that the atomized droplets or high temperature particles, Wear, corrosion resistance, heat resistance, oxidation resistance, insulation, insulation, conductive, sealed, disinfected, anti-microwave, anti-corrosion, anti-corrosion, anti-corrosion, anti-oxidation, heat insulation, insulation, conductive, sealing, disinfection, and so on. Radiation and other special physical and chemical properties. It can repair the old equipment in the waste, so that scrap the parts "back to life"; can also be strengthened in the manufacture of new products and pre-protection, so that "longevity."