The status and development of copper-based friction plates
Heavy-duty and special vehicle transmissions generally use friction plates based on copper-based pow-der metallurgical materials.With the development of the transmission to high speed,high torque,heavy load,etc.,the problems of inadequate performance of traditional friction plates are gradually leaking out,such as friction lay-er peeling,core plate fracture.Aiming at the problems that are becoming increasingly evident in copper-based fric-tion plates,the development process of friction discs and the current application status of copper-based friction discs are analyzed,their composition and material composition are introduced,and the common failure forms and requirements of friction discs are explained.Further,the targeted strategies are proposed in terms of composition design,manufacturing process,structural design,post-treatment strengthening,and so on.It is pointed out that the optimization of multi-process coupling and the resrarch of new environmentally friendly composite friction plates will be an important direction for the development of friction plates.
powder metallurgycopper base friction platecomponent design optimisationsurface structure opti-misationcoupling optimisation
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