摘要
电子束焊接(EBW)对机械工业具有重要意义,传统的EBW受制于庞大真空工作室,导致无法进行大规模的工业应用。非真空电子束焊接(NV-EBW)破除了真空机制,使EBW焊接效率、应用范围以及机动性能得到提升。简述了NVEBW关键技术在国内外的发展现状及NV-EBW应用,介绍了NV-EBW关键技术的原理以及几种NV-EBW关键技术:差分抽气、纵向引射式气动窗口、等离子窗,总结了各种技术的优缺点以及有待进一步解决的问题,并展望了NV-EBW关键技术的发展方向。
The latest advance in the emerging technology of non-vacuum electron beam welding（ NV-EBW）was tentatively reviewed. The discussions with specific examples focused on： i） the key NV-EBWproblems,the energy loss in electron transport from the electron gun in an ultra-high vacuum（ UHV） to the welding spotsat an atmospheric pressure and significant decrease of e-beam energy density at the welding spots; ii） a variety of technical solutions and their operation mechanisms,including but not limited to the techniques of differential pumping,jet injecting type aerodynamic window and plasma window; and iii） the technical strengths and weaknesses of these methods available. In addition,when it comes to applications of the NV-EBW technology on industrial scale,the existing problems,possible answers and development trends were also briefly discussed in a thought provoking way.
作者
韦寿祺
刘胜
岳庆功
Wei Shouqi Liu Sheng Yue Qinggong(College of Mechanical ＆ Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China)
出处
《真空科学与技术学报》
CSCD
北大核心
2017年第9期933-938,共6页
Chinese Journal of Vacuum Science and Technology
基金
广西自然科学基金项目(2015GXNSFAA139291)
作者简介
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