Research and Discussion on the Mechanism of Brake Heat Fading Caused by Friction Materials
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Heat fading is the key factor that influences the stability of the brake. Relative braking tests are done to study its mechanism through integrative test bed of motorcycle brake. The friction surfaces of brakes have been analyzed by scanning electron microscopy(SEM), after two types of friction materials are frictionated with their counterparts. In comparison with the experimental results of the two types of friction materials, we find that the intensity of heat fading is greatly related to the component of brake lining. To powder metal materials,the fading is not obvious,while the fading of resin friction materials is rather obvious because some organic are contained.Some schemes of modifying friction materials have been put forward to upgrade the performance of heat fading resistance.