【摘要】 在N15机械油中添加胆甾醇,用标准的立式万能摩擦磨损试验台实验分析了N15机械油、N15油机械+胆甾醇的摩擦磨损性能。针对磨合阶段、稳定磨损阶段、胶合失效与摩擦噪声进行分析。结果表明,在磨合阶段摩擦因数有较大变化,随后的稳定磨损阶段中摩擦因数变化减小;在摩擦副出现胶合失效前,摩擦副的摩擦因数急剧上升;N15机械油+1.7%胆甾醇的抗胶合性能较好,但N15机械油+0.106%胆甾醇的摩擦噪声特性较好;胆甾醇添加剂可以显著改善N15号机械油的抗胶合能力。更多还原

【Abstract】 The friction and wear behaviors of mechanical oil N15 and the oils with cholesteric crystal liquid additives were experimentally investigated with a standard test rig MMW-1.The process of friction and wear in stages of breaking-in,steady wear,scuffing and frictional noises were studied.The results indicate that friction coefficient quietly changes during the breakingin process and its variation during the steady process is small,that the friction coefficient significantly becomes large as the scuffing occurs.The scuffing resistance of oil N15+1.7% cholesteric crystal liquid is better,however,the frictional noise of oil N15+0.106% cholesteric crystal liquid is lower.The cholesteric crystal liquid additives can quietly improve the scuffing resistance of oil N15.更多还原