Method for providing a coating layer with protection and thermal conductivity

A method for providing a coating layer with well protection and thermal conductivity, providing a coating layer material, the coating layer material set on a workpiece to form a coating layer with thickness 160-500 micrometer. The coating layer is able to avoid wear of the surface of the workpiece, and has well protection and thermal conductivity, to avoid the situation of damage or mechanical property changing occurred due to the temperature of the surface rising caused by the friction.