水-乙二醇液压液极压抗磨添加剂二聚酸钾的研究  

Research of Dimer Acid Potassium-an Extreme Pressure Anti-wear Additive of Water-glycol Hydraulic Fluid

作　　者：周灿丰[1] 薛龙[1] 孟宪堂[2] 

机构地区：[1]北京石油化工学院机械工程系,102600 [2]中国矿业大学北京校区摩擦磨损研究室,100083

出　　处：《润滑与密封》2001年第3期31-32,共2页Lubrication Engineering

摘　　要：本文对合成的一种应用于水－乙二醇液压液的极压抗磨添加剂二聚酸钾进行了润滑性能测试和抗磨作用机理研究，四球实验表明，二聚酸钾的水溶性能和抗磨性能优于水溶性改性ＺＤＤＰ和Ｌｕｂｒｉｚｏｌ５６４２，以二聚酸钾作为极压抗磨添加剂的水－乙二醇液压液ＫＧＹ的润滑性能与Ｎ４６抗磨液压油相当。钢球磨斑表面元素ＥＤＳ分析表明，在极压条件下，二聚酸钾与摩擦表面发生某种磨擦化学反应，形成了一层有机类抗磨膜。The lubricity and anti-wear mechanism of dimer acid potassium-an extreme pressure (EP) additive of water-glycol hydraulic fluid were described in this paper. Four-ball machine tests showed that water-solubility and lubricity of dimer acid potassium are better than water-soluble ZDDP and Lubrizol 5642, also showed that lubricity of water-glycol hydraulic fluid KGY in which dimer acid potassium is added as extreme pressure additive is equal to N46 anti-wear hydraulic oil. EDS analysis of wear scar showed that dimer acid potassium might react with rub surface and form an organic anti-wear film on extreme pressure condition.

关 键 词：极压抗磨剂 水-乙二醇 液压液 二聚酸钾 润滑性能 抗磨机理 

分 类 号：TE626.3[石油与天然气工程—油气加工工程] TH117.22[机械工程—机械设计及理论]