ZM6铸造镁合金在空间飞行器主承力结构中的应用研究  

The Application of ZM6 Casting Magnesium Alloy in the Principal Bearing Structure of Spacecraft

作　　者：李成祥[1] 李海岩[1] 张耀磊[1] 王彬[1] 郭剑[1] LI Chengxiang;LI Haiyan;ZHANG Yaolei;WANG Bin;GUO Jian(China Academy of Launch Vehicle Technology Research and Development Center, Beijing 100076, China)

机构地区：[1]中国运载火箭技术研究院研究发展中心,北京100076

出　　处：《兵器装备工程学报》2018年第6期36-40,共5页Journal of Ordnance Equipment Engineering

摘　　要：文章介绍了某空间飞行器主承力结构的设计方案、镁合金材料的应用优势,采用低压铸造、缝隙式浇注、微弧氧化等技术,解决了镁合金铸造、机械加工及表面处理的应用难题,实现了ZM6铸造镁合金大尺寸结构的工程化应用。仿真分析结果表明,采用镁合金铸件的主承力结构满足静强度和静刚度设计要求,与铝合金结构相比,强度质量比提高10.2%,刚度质量比提高28.9%,重量下降1/3,实现了空间飞行器的轻质化。此次应用研究成果也为其他飞行器轻质化设计提供了参考。The design scheme of the principal bearing structure,advantages of magnesium alloy materials were introduced in this paper. The application bottlenecks of magnesium alloy casting,machining and surface treatment were solved by low pressure casting,gap pouring system and micro-arc oxidation. The application of ZM6 casting magnesium alloy in large size structure was realized. The simulation results show that the stiffness and strength of the principal bearing structure based on magnesium alloy meet the design requirements. Compared with the aluminum alloy structure,the ratio of strength to mass increased by 10. 2 %,the ratio of stiffness to mass increased by 28. 9% and the weight decreased by a third,the lightweight of spacecraft was realized. The results of this application research also provide reference for the lightweight design of other spacecraft.

关 键 词：镁合金 空间飞行器 低压铸造 微弧氧化 应用研究 

分 类 号：V462[航空宇航科学与技术—航空宇航制造工程]