Design and Optimization of 100kV Electron Gun for Welding

SI Qingrun; DONG Quanlin; SANG Xinghua

doi:10.16080/j.issn1671-833x.2021.21.096

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Design and Optimization of 100kV Electron Gun for Welding

更新时间：2025-10-30

- Design and Optimization of 100kV Electron Gun for Welding
- Aeronautical Manufacturing Technology Vol. 64, Issue 21, Pages: 96-100(2021)
- 作者机构：
  
  1. 北京航空航天大学,北京,100191
  2. 中国航空制造技术研究院,北京,100024
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2021.21.096
  CLC：
- Published：2021
- 稿件说明：
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司青润，董全林，桑兴华. 100kV 焊接用电子枪的设计和优化[J]. 航空制造技术, 2021, 64(21): 96-100.

SI Qingrun,DONG Quanlin,SANG Xinghua. Design and Optimization of 100kV Electron Gun for Welding. 航空制造技术, 2021, 64(21): 96-100.
司青润，董全林，桑兴华. 100kV 焊接用电子枪的设计和优化[J]. 航空制造技术, 2021, 64(21): 96-100. DOI： 10.16080/j.issn1671-833x.2021.21.096.

SI Qingrun,DONG Quanlin,SANG Xinghua. Design and Optimization of 100kV Electron Gun for Welding. 航空制造技术, 2021, 64(21): 96-100. DOI： 10.16080/j.issn1671-833x.2021.21.096.

摘要

采用 LaB

间热式阴极，运用综合迭代法，设计了一款焊接用的大功率电子枪。在理论设计的基础上通过Munro 软件中的 Source 模块对初始结构参数进行了优化调整，最终达到了功率 36kW、加速电压 100kV、发射束流360mA、束腰直径300μm的设计指标。采用单一变量法进行了大量仿真试验，总结出了电子枪的栅极位置、栅极孔径、栅极电压、阳极位置、阳极孔径与电子束束流大小和束腰直径之间的关系，这对于三极式电子枪的结构参数调整优化具有一定的指导意义。

Abstract

A high-power electron gun for welding was designed by using LaB

indirect thermal cathode and using the integrated iteration method. On the basis of theoretical design

the initial structural parameters were optimized and adjusted through the Source module in the Munro software. In the end

the design index of power 36kW

acceleration voltage 100kV

emission beam current 360mA

beam waist diameter 300μm was reached. A large number of simulation experiments were carried out using the single variable method. The relationship of the grid position

grid aperture

grid voltage

anode position

anode aperture of the electron gun and the size of the electron beam and the beam waist diameter was summarized. This has certain guiding significance for the adjustment and optimization of the structural parameters of the three-pole electron gun.

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