离子注入航空轴承延寿应用研究

航空轴承的使用寿命普遍较短。通过大量数据统计分析和失效轴承进一步研究,发现航空轴承使用中存在的主要问题是腐蚀和磨损。经离子注入航空轴承材料的各种试验表明,试验材料表面产生了非晶态物质,其耐腐蚀性能显著提高,耐磨性提高两倍以上。同时,针对离子注入航空轴承而研制的离子束多功能机,解决了球面无法均匀注入的难题。经离子注入的航空轴承,目前在航空发动机中得到较广泛的应用,不仅顺利通过了工厂台架试车和地面燃机试验,而且所发往空军使用的航空轴承到目前为止,均表现良好。

APPLICATION RESEARCH FOR PROLONGING LIFE OF AERO-BEARING WITH ION IMPLANTATION

Generally, the service life of aero-bearing is short generally. Through a number of statistical data analysis and further research to the failure gearing, the main problem in the usage of aero-bearing was corrosion and wear. Through various test, it indicated clearly the ion implantation into the test material of aero-bearing and the non-crystal materials appeared on the surface of test material. The feature of anti-corrosion and the feature of anti-wear were 2 times than that before. Meanwhile, Developed ionic beam machine with multiple functions for the ion implantation into the material of aero- bearing solved the problem of non-uniformity implantation on spherical surface. Aero-bearing with ion implantation has been applied in the aero-engine field widely. It not only smoothly succeeded in the engine test on a test bed and gas turbine test on the ground but also all of aero-bearing delivered to China Air force being has a remarkable improvement in the work up to now.