【摘要】 制备纳米坡缕石-纳米铜的复合微粒(简称纳米P/Cu)作为150 N基础润滑油的添加剂,在MMU-10G摩擦磨损试验机上经过45 h的对磨试验,对钢-灰铸铁摩擦副在该润滑体系中的抗磨减摩性能进行考察。结果表明,当纳米坡缕石与纳米铜的质量复合比为3∶1时,润滑体系具有极佳的减摩抗磨性能,其平均摩擦因数仅为纯基础油的23.6%,磨损量为负值,即出现磨损面的自修复,增重0.22 mg。经表面EDAX分析,摩擦因数和磨损率的改善是润滑体系中坡缕石、金属铜在摩擦表面相互作用形成自修复膜层所致。更多还原

【Abstract】 Treat the preparation of nano- palygorskite- nano copper composite particles(abbreviation: nano-P/Cu) as an additives for 150 N foundation lubricating oil. We have done grinding test for 45 h in MMU-10 G friction-abrasion testing machine to test the anti-wear friction performance of the friction pair lubrication system in steel and gray cast iron. The results showed that when the nano palygorskite and nano copper in the quality of the compound ratio of 3∶1 lubrication system has excellent anti-friction and anti-wear properties. Its average friction coefficient only takes 23.6% of that in the pure base oil and the wear weight loss is negative, which means the wear self-healing effect of the weight of 0.22 mg appeared on the abrasive surface. After doing the EDAX analysis via the surface friction factor and wear rate improvement, we found that it is the self-healing film layer on the friction surface formed by the interaction of palygorskite and metal copper in the lubrication system on the friction surface.更多还原