论文部分内容阅读
采用稀土自润滑表面处理技术对桑塔纳 JV汽油发动机活塞与活塞环表面进行处理 ,并对原机进行活塞与汽缸、活塞环端口的超小间隙改造 (配缸间隙 - 5～ 2μm,活塞环开口 15 0μm ) ,通过台架试验对超小间隙发动机抗拉缸性能和摩擦功耗进行了考察 ;通过原子力显微镜对活塞表面的微观形貌和摩擦力进行了测试 .结果表明 :经稀土自润滑处理后活塞与活塞环表面产生大量孔穴和大量直径为 6 0～ 12 0 nm的球形聚集物 ,该特征表面明显增强了活塞与活塞环的抗拉缸性能 ,降低了自润滑表面的摩擦力 ,起到了良好的摩擦学改性作用
The rare earth self-lubricating surface treatment technology for Santana JV gasoline engine piston and piston ring surface treatment, and the original piston and cylinder, piston ring port ultra-small gap transformation (with cylinder clearance - 5 ~ 2μm, piston ring openings 15 0μm) were used to test the anti-pull cylinder performance and frictional power consumption of the ultra-small gap engine by bench test.The microstructure and friction of the piston surface were tested by AFM.The results showed that after the rare earth self-lubricating treatment Piston and piston ring surface produced a large number of holes and a large number of 60 ~ 120 nm in diameter spherical aggregate, the characteristic surface significantly enhances the piston and piston ring tensile cylinder performance, reducing the self-lubricating surface friction, played a Good tribological modification