纳米铜添加剂在装备修复技术中的应用  

The Application of Nano-Cu Additive to Equipments Repairing Technology

作　　者：王晓丽[1] 徐滨士[1] 许一[1] 史佩京[1] 于鹤龙[1] 赵阳[1] 

机构地区：[1]装甲兵工程学院,装备再制造技术国防科技重点实验室,北京100072

出　　处：《中国表面工程》2006年第z1期134-136,共3页China Surface Engineering

基　　金：国家自然科学基金(9140A270302060C8501)

摘　　要：考察了纳米铜添加剂在不同润滑油中的减摩抗磨性能,采用扫描电子显微镜对磨损表面进行了形貌和元素分析,模拟实际工况进行了300h的发动机台架试验。结果表明:纳米铜添加剂具有良好的减摩抗磨性能,可使润滑油650SN的摩擦系数降低48%,磨痕宽度降低21%;使坦克润滑油50CC的摩擦系数降低40%,磨痕宽度降低33%;使柴油机油15W/40CD和汽油机油15W/40SF的摩擦系数分别降低9%和15%,磨痕宽度分别降低22%和18%。在摩擦过程中,纳米铜添加剂能够在磨损表面形成了一层疏松的自修复膜,这层修复膜隔离了摩擦副之间的直接接触,修复了磨损表面的微损伤,从而起到有效的自修复作用。由纳米铜等添加剂组成的复合型添加剂具有优良的动力性、自修复性和经济性。The wear resistance and antifriction behavior of nano-Cu additive in different lubrication oil were tested. The feature and the elements of wore surface were analyzed using SEM. The 300h engine bench experiment of nano-Cu additive in lubrication was tested by simulating practical condition. The results indicate that nona-Cu additive has wonderful wear resistance and antifriction performance. The friction coefficient of lubrication oil 650SN,tank lubrication 50CC,lubrication 15W/40CD and 15W/40SF can be reduced by 48%,40%,9% and 15% respectively. While their wore track width can be decreased by 21%,33%,22% and 18% respectively. Nano-Cu additive can form loose self-repairing film on wore surface. The film isolates the direct contact of frictional pairs and repairs the minute damage of wore surface,So nano-Cu additive shows favorable self-repairing function. The compounding additive containing nano-Cu has good dynamic performance,self-repairing performance and economical efficiency.

关 键 词：纳米铜添加剂 减摩抗磨 自修复膜 台架考察 

分 类 号：TH17[机械工程—机械制造及自动化] TH16