摘要
对球形表面张力贮箱装配精度与表面张力贮箱焊缝熔深及形貌之间的关系进行了研究,得到了电子束焊接工艺规范。该规范为:采用虚焦电子束焊接工艺,聚焦束流虚焦30 m A,焊缝锁底部位宽度0.7 mm,焊接束流23 m A,焊接速度1 200 mm/min,焊接熔深2.4~3.3 mm。采用该规范焊接的表面张力贮箱通过了振动、液压、声发射等试验考核,表面张力贮箱满足设计要求,并通过了地面热试车考核。
The electron beam welding process specifications were obtained by studying the relationship of surface tension tank assembly precision, weld penetration and morphology. The specifications are: with the virtual focus electron beam welding process, when the virtual focus beam is upper than 30 m A, the seam width of lock bottom portion is 0.7 mm; when the welding beam is23 m A, welding speed is 1200 mm/min and the weld penetration was 2.4~3.3 mm. The surface tension tank made according to the electron beam welding process specifications passed the assessment of vibration, hydraulic and acoustic emission tests, met the design requirements, and also passed the ground hot fire test.
出处
《火箭推进》
CAS
2015年第5期89-94,共6页
Journal of Rocket Propulsion
关键词
液体火箭发动机
表面张力贮箱
电子束焊接
装配
liquid propellant rocket engine
surface tension tank
electron beam welding
assembly
