摘要
为了满足铁路货车闸调器持续有效的润滑要求,对闸调器润滑脂进行了研究。根据铁路货车闸调器的工况条件,拟定了闸调器润滑脂的技术指标。通过对基础油,稠化剂和添加剂的筛选,确定了闸调器润滑脂由调合基础油(精制矿物油+合成烃+合成酯),12-羟基硬脂酸锂皂稠化剂,2.0%的磷酸盐抗磨极压剂,1.5%的苯基-α-萘胺抗氧剂和1.0%的磷酸酯防锈抗腐蚀剂组成。研制的闸调器润滑脂的滴点为201℃,蒸发损失(99℃,22 h)为3.0%,相似黏度(-50℃,10 s-1)为968 Pa·s,氧化压力降(99℃,100 h,0.780 MPa)为0.030 MPa,达到了研制目标。实际应用表明,研制的闸调器润滑脂能够满足铁路货车闸调器的润滑要求,润滑脂的月消耗量下降了44.4%,综合效益每年超过60万元人民币。
In order to meet the requirement of continuous and effective lubrication for railway freight wagon brake regulator,the grease of railway freight wagon brake regulator was studied.According to the working conditions of the railway freight wagon brake regulator,the technical indexes of the grease for railway freight wagon brake regulator were worked out.Through the screening of base Stocks,thickeners and additives,it was determined that the brake regulator grease consisted of blended base oils(refined mineral oil+synthetic hydrocarbon+synthetic ester),12-hydroxy lithium stearate soap thickener,2.0%phosphate anti-wear/extreme pressure additive,1.5%phenyl-alpha-naphthalene amine antioxidant and 1.0%phosphate antirust and corrosion inhibitor.The drop point of the brake regulator grease was 201℃,evaporation loss was 3.0%,apparent viscosity was 968 Pa s(-50℃,10 s^-1),and an oxidative pressure drop was 0.030 MPa(99℃,100 h,0.780 MPa).The development goal was achieved.Practical application showed that the researched lubricating grease could meet the lubricating requirements of railway freight wagon brake regulator.The monthly consumption of lubricating grease had decreased by 44.4%,and the comprehensive benefit had exceeded 600000 Yuan RMB per year.
作者
马文全
杜恭
Ma Wenquan;Du Gong(Lanzhou Lubricating Oil Plant,PetroChina Lubricating Oil Company,Lanzhou 730060,China)
出处
《合成润滑材料》
CAS
2019年第4期1-5,共5页
Synthetic Lubricants
关键词
铁路货车闸调器
润滑脂
抗磨极压剂
railway freight wagon brake regulator
grease
anti-wear/extreme pressure additive
