电磁效应对润滑油添加剂摩擦学性能的影响

摘要

在改进的摩擦磨损试验机上,考察电磁场作用下磷酸三甲酚酯(T306)、硫代磷酸铵盐(T307)、氯化石蜡(T301)、丁辛基二硫代磷酸锌(T202)、双辛基二硫代磷酸锌(T203)润滑油添加剂的摩擦学性能,并结合表面分析结果从电磁场的物理效应和化学效应对润滑油的润滑机制进行分析.结果表明:电磁效应有利于增强T306的抗磨性能,但会削弱T307的抗磨性能,且对这两种添加剂的减摩性能有不利影响;电磁效应有利于增强T301,T202,T203的抗磨和减摩性能.在物理效应方面,主要考虑电磁场对磨损微粒的作用力;在化学效应方面,主要从添加剂所含活性元素及其分子结构等方面考虑其与润滑性能的关系.%Tribological properties of five lubricating additives,T306,T307,T301,T202,T203,were investigated on a modified tribo-tester under electromagnetic field.Their lubrication mechanisms were analyzed from physical effect and chemical effect of electromagnetic field based on the results of surface analysis.In terms of physical effects,the force of electromagnetic field on wear particles is mainly considered.In terms of chemical effects,the structural relationship between active elements and molecular structure of lubricating oil is mainly considered.The results indicated that the electromagnetic effect facilitates the anti-wear properties of T306-doped oils but impairs that of T307-doped oils.The electromagnetic effect was not beneficial for the friction reducing capacity of T306 and T307.Moreover,the an ti-wear and friction-reducing abilities of T301/T202/T203 are improved by the electromagnetic effect.