油溶性有机钼与钙镁型清净剂复合的摩擦学性能  

Tribological Properties of Oil-soluble Organic Molybdenum and Calcium and Magnesium Detergents Composited

作　　者：肖德志[1] 程鹏[2] 林彬[1] 陈国需[1] 向玩风 

机构地区：[1]后勤工程学院军事油料应用与管理工程系,重庆401311 [2]后勤工程学院化学与材料工程系,重庆401311 [3]洞口县花园中心小学,湖南邵阳422309

出　　处：《润滑与密封》2018年第1期7-14,共8页Lubrication Engineering

基　　金：重庆市博士后基金项目(Rc201355;Xm201318)

摘　　要：采用四球摩擦磨损试验机考察油溶性二烷基二硫代氨基甲酸钼(Mo DTC)与钙镁型清净剂复配时的摩擦学性能。借助白光干涉仪、扫面电镜(SEM)、能谱仪(EDS)和X射线光电子能谱仪(XPS)对磨斑表面进行分析,探讨复配体系的摩擦学作用机制。结果表明:Mo DTC与钙镁型清净剂复配时都表现出一定的减摩抗磨协同性,当Mo DTC质量分数为0.3%~0.5%,清净剂质量分数为2%~3%时,复配体系摩擦学性能相对更显著,这主要是在摩擦过程中形成的Mo S2化学反应膜和相应的沉积膜共同作用的结果。The tribological properties of molybdenum dialkyl dithiocarbamate （MoDTC） combining with calcium and magnesium type detergents were investigated by four-ball friction and wear tester.The worn surface of steel ball was ana- lyzed by white light interferometer, scanning electron microscopy （SEM） , energy dispersive spectrometer（EDS） and X-ray photoelectron spectroscopy（XPS） , and the tribological mechanism of the compound system was discussed.The results show that there is a synergism to some extent when MoDTC combining with calcium and magnesium type detergents, and the compound system composed of 0. 3%- 0. 5% MoDTC and 0. 3% - 0. 5% detergents has more obvious friction reducing and anti-wear performances.The reason is mainly due to the combined effect of the MoS2 chemical reaction film and the corre- sponding deposited fdm formed during the friction process.

关 键 词：二烷基二硫代氨基甲酸钼 复配 清净剂 减摩抗磨 

分 类 号：TH117.2[机械工程—机械设计及理论]