Brief Discussion on Thermal Spray Processing Spline Shaft Tungsten Carbide Coating

       In the petroleum industry, equipment often has an adverse effect on the safe and stable operation of the equipment due to corrosion and wear. Therefore, it is necessary to improve the wear resistance and corrosion resistance of mining and processing equipment in the petroleum and petrochemical industry. The surface of the green metal spline shaft is thermally sprayed with tungsten carbide coating, which improves the corrosion and wear resistance of the spline shaft.

The spline shaft is a kind of petroleum machinery transmission. It has the functions of safety key, semi-circular key, oblique key, etc., all of which are used to transmit mechanical torque. There is a longitudinal keyway on the appearance of the shaft, and the rotating parts set on the shaft also have corresponding The keyway can keep synchronous rotation with the shaft. Therefore, the anti-wear corrosion of the keyway brings difficulties to the thermal spraying construction. In order to ensure the quality of spraying, the professional skills of workers are required to be higher

Tungsten carbide is a carbon and tungsten compound with relatively high hardness and good wear resistance; tungsten carbide has stable chemical properties and good corrosion resistance. With thermal sprayed tungsten carbide coating, the surface of the spline shaft has good anti-corrosion and wear resistance, and the chemical properties are stable, which can effectively enhance the strength of the surface of the spline shaft.