【摘要】 制备了一种纸基摩擦材料。通过改装QM1000 Ⅱ型摩擦材料性能试验机的盘车装置, 增添静摩擦力矩曲线数据采集和处理程序, 研究了载荷与纸基摩擦材料摩擦力矩特征的关系和对静、动摩擦系数的影响, 得到了静摩擦力矩曲线图。试验结果表明: 测量静摩擦力矩的持续时间与载荷无关, 静、动摩擦力矩随着加载载荷增加而增大, 静摩擦系数随载荷增加而增大, 动摩擦系数随载荷增加而减小, 自动盘车测得的静摩擦系数准确性和可信度高, 试验结果对设计摩擦材料的使用参数和优化摩擦材料的配方工艺有指导意义。更多还原

【Abstract】 A modified test rig of QM1000-Ⅱtype wet friction performance tester was assembled by refitting the jigger equipment, adding the data acquisition program and the data processing program of the friction torque. A paper-based friction material reinforced by cellulose fiber was prepared by using the paper-making method. The relationship between load and friction torque characteristics and the effect of load on the static coefficient and dynamic coefficient of friction of paper-based friction material were investigated. The results show that the torque magnitude of both static and dynamic friction increases with the increasing of load, the static coefficient of friction increases linearly and the dynamic coefficient of friction declines as increasing of loads. The duration time of the torque curve of static friction is independent of loading. Experiment data of static torque are more accurate and more reliable by automatic method than by manual method. The experiment results will have guide significance for design of operation parameters of a wet clutch and optimizing the composition formula of friction materials.更多还原