纤维增强合成闸片摩擦磨损特性的试验研究

采用MM-1000型摩擦磨损试验机进行了纤维增强合成闸片和HZ408合成闸片与H300制动韫材料配副的制动摩擦试验，记录了制动过程中摩擦系数、磨损量与制动盘温度的变化情况，采用三维激光共焦扫描显微镜（CLSM）分析了磨损表面形貌．结果表明：制动初速度对纤维增强合成闸片的平均摩擦系数影响小于HZ408合成闸片，在高速制动工况下，纤维增强合成闸片的平均摩擦系数大于HZ408，耐磨性略低于HZ408合成闸片；在低速制动工况下，纤维增强合成闸片和HZ408合成闸片所引起的制动盘温升大致相同；在高速制动工况下前者引起的制动盘温升略高．

Experimental Study on Friction Characteristics of a Fibre Reinforced Composite Brake Pad

A series of brake friction tests on a fibre reinforced composite brake pad and a HZ408 brake pad materials rubbing against a brake disc material were carried out on a friction and wear tester of MM-1000 type.During the test,the coefficient of friction,temperature increment and wear mass loss of both materials were measured.The worn surface morphologies were observed using a Confocal Laser Scanning Microscope(CLSM).The initial brake speed had a smaller influence on the friction coefficient of the fibre reinforced composite than it exerted the influence on that of the HZ408 brake pad.The fibre reinforced composite exhibited a larger averaged friction coefficient than the HZ408 brake pad did at a high speed.The wear mass loss of the fibre reinforced composite was found to be slightly larger than that of the HZ408 brake pad.At a low speed,the temperature increments of both pad materials were close to each other.At a high speed,the temperature increment of the fibre reinforced composite was found to be slightly larger than that of the HZ408 brake pad.