某惯性导航系统用铝合金底座铸件失效分析与工艺改进  

Failure Analysis and Process Improvement for the Aluminum Alloy Base Casting of Inertial Navigation System

作　　者：张晓丽[1] 朱玲[2] 田洪超[2] 曲嘉[2] 吕振玉[2] 

机构地区：[1]军事交通学院,天津300161 [2]天津航海仪器研究所,天津300131

出　　处：《铸造设备与工艺》2015年第2期31-32,36,共3页Foundry Equipment & Technology

摘　　要：航海仪器研究所某惯性导航系统用底座铸件是系统的关键承载部件,采用国内不常用的ZL424铸造铝合金浇注成型,在长时间、低载荷模拟受力环境运行过程中,经常开裂。本文通过系统的研究,找到了造成其开裂的原因,改进了工艺,提高了铸件成品率。The base casting which casted by gravity casting using the casting of aluminum alloy numbered ZIA-24 not customary in domestic for an inertial navigation system is the key bearing component.ln simulated stress environment, the base casts often crazed in a long time,low load operation process.Through systematical study,we found the cause of crack,then improved the princess,finally improved the survival rate of castings.

关 键 词：铝合金 失效分析 工艺改进 

分 类 号：U666.12[交通运输工程—船舶及航道工程] TG292[交通运输工程—船舶与海洋工程]