纤维增强合成闸片摩擦磨损特性的试验研究  

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

作　　者：梁爽[1] 陈光雄[1] 戴焕云[1] 曾京[1] 

机构地区：[1]西南交通大学摩擦学研究所牵引动力国家重点实验室,四川成都610031

出　　处：《摩擦学学报》2006年第6期590-594,共5页Tribology

基　　金：国家自然科学基金资助项目(50375128);西南交通大学牵引动力国家重点实验室开放基金资助项目

摘　　要：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制动盘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.A series of brake friction test＇s on a fibre reinforced composite brake pad and a HZA08 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.

关 键 词：盘形制动 摩擦系数 磨损 合成闸片 

分 类 号：TH117.3[机械工程—机械设计及理论]