作　　者： ; ; ; ;

机构地区： 西南交通大学机械工程学院摩擦学研究所

出　　处： 《润滑与密封》 2006年第12期74-76,共3页

摘　　要： 在NENE-2型磨损试验机上利用往复滚动试验装置研究了不同制动状态下车轮钢的滚动摩擦磨损特性。结果表明:不同滚滑状态下的切向摩擦力是变化的,随制动力的增加,滚动摩擦副对应的摩擦因数和摩擦阻力相应增大;平面试样的表面磨痕形貌由于切向摩擦力的变化而明显不同;随切向摩擦力的增大滚动磨损机制亦发生改变,从磨粒磨损逐渐转变为粘着磨损,磨损加剧且磨痕深度变大。 The roiling friction and wear characteristic of wheel steel/GCr15 were investigated under different brake force conditions by a reciprocating roiling testing apparatus. The results show that the friction coefficient and tangential friction force of the roiling friction pair are increased with the brake force increasing. The morphology of worn surface of the wheel steel is distinct and the wear mechanism changes from abrasion wear to adhesive wear gradually with tangential force increasing. The spalling is very obvious while the wheel slides completely and the depth of wear achieves the maximum.

关 键 词： 滚动磨损 滚滑接触 磨损机制 制动力

领　　域： [机械工程]