Thermal spray repair of wind turbine yaw brake disc

       Wind turbine yaw brake disc thermal spray repair:

The yaw system is one of the essential components of the horizontal axis wind turbine. The yaw system has two main functions. One is to cooperate with the control system of the wind turbine, so that the rotor of the wind turbine is always in the windward state, making full use of wind energy and improving the power generation efficiency of the wind turbine; the other is to provide Necessary locking torque to ensure the operation of the wind turbine. When a gear-driven yaw system is used, in order to avoid the oscillating wind direction change and causing alternating load on the yaw gear teeth, a yaw brake should be used to absorb the small free deflection oscillation and prevent the alternating stress of the yaw gear from causing the gear teeth premature injury.

The yaw brake is vulnerable to wear during operation and needs to be maintained and repaired in time. Jinan Tianmeng Co., Ltd. uses thermal spraying technology to spray metal coating on its surface. Thermal spraying technology is to send the sprayed material into the high-temperature, high-speed flame or plasma jet sprayed from the spray gun mouth. The molten or semi-molten form is dispensed to the surface of the pretreated matrix CIA at high speed. When the molten particles hit the matrix, energy is converted, deformed, spread, dispersed and wetted, and cooled and solidified at a fast rate, forming on the surface of the matrix. Protective coating, a metal coating prepared by thermal spraying technology, has strong wear resistance and corrosion resistance, and can effectively enhance the strength of the substrate itself and enhance its service life.