碳质双层纸基摩擦材料的摩擦磨损性能研究

采用抄纸工艺制备碳质双层纸基摩擦材料,采用惯量摩擦试验方法研究双层纸基摩擦材料的摩擦磨损性能.结果表明:碳质层的摩擦力矩在制动初期上升较快,中间过渡区平稳,尾部翘起较小;在制动压力小于0.28 MPa时静摩擦系数小于动摩擦系数,且动、静摩擦系数均随制动压力增加而减小;相对纤维层而言,采用碳质层摩擦时摩擦力矩曲线形态更好,连续制动时摩擦系数波动较小,磨损率低且能够有效保护偶件,是1种静/动摩擦系数比较低且适用于高载荷工况条件下使用的摩擦材料.

Friction Performance of Two-ply Paper-based Friction Material Containing Carbon Material

To exert excellent tribological characteristics of carbon material, a two-ply paper-based friction material was developed successfully by paper-making process. The friction performances of carbon face were investigated with an inertia friction tester. The torque curve of carbon face was ideal, the coefficient of static friction was lower than that of dynamic in 0.28 MPa, the friction coefficient of static and dynamic decreased with the braking pressure increasing. To the fiber face, the coefficient of dynamic friction of carbon face was more stable in cycle braking process, the wear rate was lower, and it was efficient to protect the couple plate not to be worn.