摩擦材料中纤维品种的选择及性能研究

Research and selection of the fiber on friction material

采用干法工艺热压成型，制备混杂纤维增强无石棉摩擦材料，热压温度为165℃，压力为25MPa，热压时间为500S，在180℃下热处理120min。测定材料的摩擦磨损性能、物理性能。结果表明，玻璃纤维混杂增强摩擦材料的摩擦因数在0．33-0．41之间变化，磨损率为0．28×10～-0．54×10cm。／（N·m），洛氏硬度为HRM76．0，密度为2．18g／cm。

Hybrid fibers reinforced asbestos-free friction materials were fabricated via hot pressing molding method. And the processes are following：hot-pressing temperature is 165 ℃, hot pressure is 25 MPa, hot pressure time is 500 s,heat treatment 180 ℃ for 120 min. The friction and wear properties,physical per formance of materials were investigated. The results show that the density of the synthesized materials is 2.18 g/cm3 ,the Rockwell hardness is 76.0. And the friction coefficient changes between 0.33 - 0.41, the wear rate 0.28 x 10-7 -0.54 x 10-7 Cm3/（N . m）.