纳米Al/Sn金属颗粒对润滑油抗磨极压性能的影响  

Impacts of Nano Al/Sn Particles on Anti wear and Extreme Pressure Property of Lubricant Oil

作　　者：李晛[1] 柳刚[1] 范荣焕[1] 刘庆廉[1] 融占良 

机构地区：[1]天津大学材料学院,天津300072 [2]燕化集团天津润滑油脂公司,天津300480

出　　处：《润滑与密封》2004年第4期60-62,共3页Lubrication Engineering

摘　　要：利用四球试验机分别对添加有纳米铝粉、锡粉以及Al+Sn金属粉的润滑油进行极压和抗磨性能实验。采用SEM (扫描电子显微镜 )对摩擦表面进行观察 ,采用EDS (能量色散谱仪 )对表面进行元素测定。测试结果表明 ,纳米Al+Sn金属粉可在较宽的载荷范围内明显改善润滑油的极压抗磨性能。其作用机理是锡粉在低载荷阶段沉积到摩擦表面起到抗磨剂作用 ,铝粉在高载荷阶段沉积到摩擦表面起到极压剂作用 ,从而实现了在低载荷到高载荷范围内对润滑油抗磨极压性能的提高。The anti wear (AW) and extreme pressure (EP) properties of lubricant oil added with Al,Sn and Al+Sn nanoparticles were tested by four ball method.The friction surface was investigated by SEM and EDS.The test results show that the AW and EP performance of base oil can be obviously improved in a wild load range by adding Al+Sn nanoparticles.The mechanism is that Sn powder deposits on the friction surface under low pressure and acts as AW additive;Al powder deposits on the friction surface under high pressure and acts as EP additive,so the improvements of AW and EP properties of lubricant oil were realized from low pressure to high pressure.

关 键 词：纳米金属颗粒 润滑油 抗磨性 饭压性 SEM EDS 铅粉 锡粉 

分 类 号：TH117.22[机械工程—机械设计及理论]