Analysis on the processing technology of the electron gun for microwave tubes using pulsed laser welding

被引：0
|
作者：
Wang B. [1 ,2 ]
Zhang Z. [1 ]
Hu X. [1 ]
Zhou J. [1 ]
机构：
[1] Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Beijing
[2] School of Electronic, Electrical and Communication Engineering, Chinese Academy of Sciences, Beijing
来源：
Zhang, Zhaochuan (zczhang@mail.ie.ac.cn) | 2018年 / Harbin Research Institute of Welding卷 / 39期
关键词：
Electron gun; Laser welding processing parameters; Microwave tubes; Reliability;
D O I：
10.12073/j.hjxb.2018390086
中图分类号：
学科分类号：
摘要：
The laser welding test was carried out on the electron gun of microwave tubes. The weld surface morphology, microstructure, interface element distribution, fracture morphology, main phase, hardness, mechanical properties, vibration and electrical property were studied by metallography microscope, scanning electron microscopy, X-ray diffraction, electron micro-hardness analyzer, vibration table and vacuum degassing system. The results indicated that the morphology of welding surface could be improved through the optimised welding parameters and the electron guns survived in continuous high temperature working condition. The vibration and electrical property test examined the welding quality for the electron guns. Meanwhile, the reliability of laser welding process in the development, production, and application of microwave tubes has been verified. © 2018, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
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页码：11 / 16
页数：5
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