PEEK卡箍载荷及耐环境性能研究

为支撑型号设计选用,针对P型和马鞍型两种结构的聚醚醚酮卡箍进行了拉伸载荷试验和多种环境试验,分析了振动与冲击、温度老化、液体浸渍、湿度、盐雾等环境试验条件对产品性能的影响,试验得到了卡箍最易失效的受力方向以及不同安装方式、不同温度条件下的拉伸载荷数据。研究表明:PEEK卡箍在试验环境温度下拉伸性能比较稳定;在湿热环境下易出现开胶现象;在振动与冲击、温度老化等环境载荷下能保证结构完整和性能稳定,可以在一定条件下代替金属箍带卡箍。

Tensile Load and Environmental Performance of PEEK Clamp

In order to provide essential data for aircraft designing, loading test and environmental performance test on PEEK clamp, both in P and saddle type, were finished. The effects on product properties after vibration, impact, temperature age, liquid immersion, humidity and salt were discussed. The direction that the most easily to damage in and the fracture load values in different installation angle and environmental temperature was obtained.It is shown that the tensile property of PEEK clamp is stable at room temperature.The clamp is easily broken in glue in hot and humid environment.The PEEK clamp can keep complete structure and stable perfonnance under the environmental load such as vibration, impact, and temperature aging and can replace metal clamp in certain conditions.