航天器环境工程2023，Vol.40Issue(6)：630-635,6.DOI:10.12126/see.2023076
推进剂贮箱箱底密封外焊罩结构设计及焊接热效应实验研究
Structural design of sealed outer welding cover and experimental study on welding thermal effect for the propellant tank bottom
摘要
Abstract
A sealed outer welding cover structure for sensors and pipelines at the bottom of the propellant tank of a launch vehicle to provide protective seal for the sealing surfaces between sensors & valve pipelines and tank bottom flange was proposed.In view of the risk of low capability of the tank bottom sensor to withstand the welding thermal effect of the outer welding cover,a thorough experiment was carried out.A heat dissipation plan for the welding process was developed.Process parameters such as welding time and heat disssipation time were determined.The proposed research may provide a technical support for the subsequent welding of the outer welding cover for sensors on the launch vehicle.关键词
密封外焊罩/焊接热效应/散热方案/焊接时间/实验研究Key words
sealed outer welding cover/welding thermal effect/heat dissipation scheme/welding time/experimental study分类
通用工业技术引用本文复制引用
冷月,卢松涛,肖士利,张曙辉,李吉..推进剂贮箱箱底密封外焊罩结构设计及焊接热效应实验研究[J].航天器环境工程,2023,40(6):630-635,6.基金项目
运载火箭型号项目支持 （）
