不同工况下软质丁苯橡胶轮表面磨损颗粒的产生量及磨损机理

采用自行设计的摩擦磨损试验机,研究了磨损时间、载荷、滚动速度、相对湿度对软质丁苯橡胶轮表面产生的磨损颗粒数量和橡胶轮温度的影响,分析了不同工况下的磨损机理;采用正交试验分析了各因素的影响程度.结果表明:磨损颗粒随磨损时间和载荷的增加而增多,随滚动速度和相对湿度的增大而减少;粒径为2.5μm的磨损颗粒数量和橡胶轮温度随各...

Amount of Wear Particles on Surface of Soft Styrene Butadiene Rubber Wheel and Wear Mechanism Under Different Working Conditions

The effects of wear time,load,rolling speed,and relative humidity on the number of wear particles on surface of soft styrene-butadiene rubber wheel and the rubber wheel temperature were studied with a self-designed friction and wear testing machine.The wear mechanism under different working conditions was analyzed.The influence degree of each factor was analyzed by orthogonal experiment.The results show that the number of wear particles increased with the increase of wear time and load,and decreased with the increase of rolling speed and relative humidity.The number of wear particles with particle size of 2.5μm and the temperature of the rubber wheel had the same changing trend with various factors.The amount of the small wear particles could be predicted by temperature changes.The wear mode was fatigue wear under low load,and was fatigue wear and abrasive wear under high load.The order of the influence degree of each factor was load,rolling speed,relative humidity,type of grinding wheel.When the load was 100 N,the rolling speed was 8 m·s^-1,the relative humidity was 60%and the grinding wheel was a cement wheel,the number of wear particles was the least.