Molybdenum For Automotive Spraying

Molybdenum has a melting point of up to 2620°C and has good high-temperature and corrosion resistance. Molybdenum has a strong bond with steel and is therefore the main thermal spray material in the production of automotive components. Automotive parts generally use molybdenum wire high-speed flame spraying, spray gun gas mixing and injection device to produce high temperature gas combustion, special design of the combustion chamber and gas injection mixing chamber, so that the molybdenum wire in the complete melting before the very high speed sprayed on the surface of the workpiece, spray molybdenum densities up to 99% or more, the bonding strength is close to 10 kg / mm2. this process can effectively improve the abrasion resistance of abraded surfaces, and also provides a lubricant can be impregnated with lubricants. It also provides a porous surface that can be impregnated with lubricants. It is widely used in the automotive industry to improve the performance of piston rings, synchronizer rings, forks and other worn parts, as well as for the repair of worn crankshafts, rolls, axle rods and other mechanical parts. According to information on the spraying of molybdenum wire European market annual sales of up to 1,000 tons, the United States annual consumption of 600 tons or so, Japan's annual consumption of molybdenum wire 30-40 tons, China's spraying molybdenum wire market capacity is still less than 30 tons per year. But with the development of China's automotive industry, automotive gears and other parts of the thermal spraying will have a greater development, spraying molybdenum wire sales will grow significantly.