硫化温度对纸基摩擦材料性能的影响

采用造纸工艺制备了一种湿式纸基摩擦材料,研究了硫化温度对材料耐热性、动摩擦因数、摩擦力矩、磨损率、磨损表面微观形貌的影响.研究结果表明:硫化温度高于或低于160℃时,材料的耐热性能减弱,树脂和竹纤维的热分解较为严重,热磨损主要影响着材料摩擦磨损性能的稳定;160℃时,材料的磨损较小,磨损表面平整致密,在循环制动中动摩擦系数波动性较小,摩擦力矩的变化较平稳,降低了制动的噪音.

Influence of curing temperature on the performance of paper-based friction material

Wet paper-based friction material was prepared through the paper-making process, and the influences of curing temperature on the friction materials, including heat resistance, dynamic friction coefficient, friction torque, wear rate and micro morphology of the worn surface were studied. The results show that the heat resistance of friction material were weaken, and thermal decomposition of resin and bamboo fiber became serious when the curing temperature is higher or lower than 160 ℃ the thermal worn mainly affect the stability of tribological performance of friction material. At the curing temperature of 160 ℃, the worn rate of friction material with flat and compact worn surface is minimum, and dynamic friction coefficient and friction torque keep relatively stable, which reduce brake noise.