工艺参数对轻质热防护组件胶接装配性能的影响  

Effect of Process Parameters on Adhesive Assembly Performance of Lightweight Thermal Protection Components

作　　者：方春平 张大海[1] 赵建设[1] FANG Chunping;ZHANG Dahai;ZHAO Jianshe(Aerospace Research Institute of Material&Processing Technology,Beijing 100076)

机构地区：[1]航天材料及工艺研究所,北京100076

出　　处：《宇航材料工艺》2024年第2期161-164,共4页Aerospace Materials & Technology

基　　金：基础加强重点计划项目。

摘　　要：可重复使用运载器采用轻质热防护材料和应变隔离垫作为飞行器的热防护系统,轻质热防护组件通过硅橡胶胶黏剂粘接至碳纤维复合材料蒙皮表面。为提高可重复使用飞行器轻质热防护系统粘接质量,通过实验方法研究了加压压力、加压时间、表面处理方式等对轻质热防护组件与碳纤维复合材料的粘接强度的影响。结果表明:轻质热防护组件与碳纤维复合材料的粘接强度随加压压力的增大而增大,随加压时间的增长先迅速增大,当加压时间超过7 h时缓慢增大;打磨或涂处理剂表面处理方式均能提高粘接强度,同时施加两种处理方式时提高粘接强度大于52%。Lightweight thermal protection materials and strain isolation pad were used as the thermal protection system of reusable launch vehicle.The lightweight thermal protection component was bonded to the surface of the carbon fiber composite skin by the silicone rubber adhesive.In order to improve the bonding quality of lightweight thermal protection system for reusable aircraft,influnence of pressure,pressurizing time and surface treatment on the bonding strength of lightweight thermal protection components and carbon fiber composites were investigated experimentally.The results show that the bonding strength of lightweight thermal protection components and carbon fiber composites increase with the increase of pressure.The bonding strength increases rapidly with the increase of pressurizing time,but the increase rate slow down when the pressurizing time exceeds 7 h.The bonding strength is improved by grinding rough bonding surface or applying treatment agent.The bonding strength is increased by more than 52%,when the two processing methods are applied at the same time.

关 键 词：工艺参数 轻质 热防护组件 胶接装配 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]