直升机用橡胶密封产品环境试验技术研究进展

以我国直升机在恶劣环境条件下服役导致密封产品频繁发生失效故障为背景,对航空橡胶密封材料及产品的环境试验与评价技术进行了梳理总结。分析了橡胶密封材料及产品大气暴露试验、户外自然加速暴露试验等自然环境试验技术的发展现状,介绍了热空气老化、紫外老化、臭氧老化、湿热、低温、盐雾、霉菌及综合环境试验等橡胶密封材料及产品实验室模拟加速试验技术的作用机理及试验方法。在此基础上,提出了今后应在橡胶密封产品实验室多因素模拟加速试验技术、密封结构件环境效应数据积累和应用等方面加强研究。

Research Progress on Environmental Test Technology of Rubber Sealing Products for Helicopter

Against the background of frequent environmental failure of sealing products on helicopter serving in severe environment, environmental tests and evaluation technologies of aeronautical rubber sealing material and product were reviewed. Current research status of natural environmental test technologies including atmospheric exposure test and outdoor natural acceleration test of aeronautical rubber sealing material and product were analyzed. Theories and methods of simulation acceleration test technology in laboratory including hot air aging, UV aging, ozone aging, damp heat, low temperature, salt spray, fungus and combined environmental test were introduced. Based on these, two research fields including multi simulation acceleration test technology of rubber sealing products in laboratory and environmental effect data accumulation and applications of sealing components should be emphasized in future researches.