长寿命复合锂基润滑脂性能研究

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摘要： 为快速选择汽车在不同工况下的最佳润滑脂，以测得样品的磨痕直径为评价指标，使用四球机模拟汽车正常行驶、重负荷、爬坡和高速4种实际工况，并结合滴点、蒸发损失和氧化安定性，对4种长寿命复合锂基润滑脂的性能进行研究，总结出不同工况下的最佳润滑脂。

关键词：长寿命 实际工况 润滑脂 磨痕直径

中图分类号：U473.6     文献标志码：B   DOI： 10.19710/J.cnki.1003-8817.20240371

Research on the Performance of Long-Life Composite Lithium-Based  Lubricating Greases

Liu Qian， Zhang Haoyue， Xu Yang， Tao Chunsheng

（FAW Jiefang Automobile Co.， Ltd.， Changchun 130011）

Abstract： In order to rapidly select the best lubricating grease for vehicles in different conditions， 4 actual vehicle working conditions are simulated including normal driving， heavy load， climbing and high speed using a four-ball machine with the wear diameter of the measured sample as evaluation index. Combined with droplet point， evaporation loss and oxidation stability， the performance of 4 long-life composite lithium based grease is studied， and the best choice of lubricating grease under different using scenarios are summarized as well.

Key words： Long-life， Actual working conditions， Lubricating grease， Wear scar diamete

1 前言

润滑脂广泛应用于汽车润滑部位，具有降低表面温度、消除摩擦热、防止烧伤、减缓磨损的作用，可显著延长零部件寿命。（剩余4188字）