活塞杆镀层气密性改善研究  

Research on Airtight Function Improvement of Piston Rod Coating

作　　者：田禾[1] 宁保国[1] 潘新[1] 

机构地区：[1]中航工业沈阳飞机工业(集团) 有限公司

出　　处：《航空制造技术》2014年第19期76-77,94,共3页Aeronautical Manufacturing Technology

摘　　要：起落架活塞杆镀铬表面的渗漏现象是飞机常见的一种故障现象,严重影响飞行安全。通过对渗漏现象产生机理的分析,来寻求一种切实可行的解决方法。试验验证了"金刚石碾压+超精"这种工艺方法可有效改善活塞杆镀层的气密性,消除渗漏。由于该工艺方法简单,性能稳定,在航空武器装备零部件加工和维修方面具有良好的应用和推广价值。The leakage on tile plating coating surface of undercarriage piston rod is a kind of frequent malt／mctions, which seriously affects the flight safety. Through the analysis on mechanism of leakage~ a feasible method has been tbund. The cratiwork technique of dia- mond rolling and ultra-precision machining could effec- tively improve airtight limction of piston rod coating and eliminate tile leakage. Due to the simple measure and sta- bile perfornlance, the craftwork has a favorable application and spreading value for the parts machining and servicing of aviation weapon.

关 键 词：活塞杆 金刚石碾压 超精 气密性 

分 类 号：V261.93[航空宇航科学与技术—航空宇航制造工程]