The effects of additive concentration, load applied and operating time on its antiwear and friction reduction properties as function of additive concentration in oil have been evaluated on a four-ball tester.

• 在四球试验机上考察了锡纳米微粒作为润滑油添加剂时 ,添加浓度、施加载荷以及磨损时间对其抗磨减摩性能的影响。