耐高温复合材料在火星探测器着陆器减速伞筒盖结构上的应用  

Application of High-temperature-resistant Composite Materials on Cylinder Cover of Brake Parachute on Tianwen-1 Mars Mission Lander

作　　者：刘阳同 殷永霞[1] 孙东华[1] LIU Yangtong;YIN Yongxia;SUN Donghua(Beijing Institute of Space Mechanics&Electricity,Beijing 100076)

机构地区：[1]北京空间机电研究所,北京100076

出　　处：《宇航材料工艺》2021年第5期115-118,共4页Aerospace Materials & Technology

摘　　要：针对火星探测器着陆巡视器减速伞筒盖结构在轨运行耐温度交变、辐照等空间环境和再入过程耐温度冲击性能需求,重点开展了筒盖复合材料耐温匹配性、力学性能、耐空间环境性能以及制件成型工艺研究。结果表明,选用J-168-1胶黏剂、J-245胶黏剂及T300/QY8911复合材料制备的试件通过各项性能试验考核,均能满足筒盖结构的设计指标要求。筒盖产品力学性能稳定,成型工艺可行性良好,最高瞬时使用温度可达200℃,经历空间环境模拟后力学性能保持率均在80%以上,耐高温、耐空间环境性良好。产品已成功装星发射,并在着陆巡视器落火阶段成功弹出分离,圆满完成使命。The matching of temperature resistance,mechanical properties and the survivability of space environment of materials,and the forming process of parts are studied towards the performance requirements of the cylinder cover of brake parachute on Tianwen-1 Mars mission lander,which is supposed to withstand temperature changes,irradiation and other space environments during the on-orbit operation,and to withstand the temperature shock resistance during the reentry process.The results show that the specimens prepared by using adhesive J-168-1,adhesive J-245 and T300/QY8911 composite materials passed the performance tests,and meet the design index requirements of the cylinder cover structure.The mechanical properties of cylinder cover product is stable,as well as the molding process feasibility.The instantaneous service temperature could reach 200℃,and the mechanical properties are maintained above 80%after the space environment simulation,showing that the high temperature resistance and space environment resistance are good.The product of cylinder cover has been successfully launched into space,and successfully ejected and separated when the parachute deployed.

关 键 词：筒盖 T300/QY8911复合材料 J-168-1胶黏剂 J-245胶黏剂 性能研究 

分 类 号：TB332[一般工业技术—材料科学与工程]