摘要: |
介绍了多层波纹管焊接接头结构形式,分析了多层波纹管的焊接工艺性及工艺难点。采用滚焊+熔焊的焊接工艺,解决了焊接后焊缝气孔缺陷、熔深浅的问题。改进后的批产试验件焊缝一次交检全部达到I级标准,并通过地面单元试验考核。 |
关键词: 多层波纹管;焊接接头;焊接工艺 |
基金项目: |
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Design and Welding Technology of Multi-bellows Welded Joints |
Wang Zhiyun1, Yuan Liming2, Li Xinglong2, Duan Jingyan2
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1. Beijing Aerospace Propulsion Institute, Beijing 100076;2. Capital Aerospace Machinery Company, Beijing 100076
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Abstract: |
The joint structures of welding multi-bellows are introduced and the procesibility and difficulty of welding multi-bellows are analyzed in this paper. The problems related to weld porosity and melting depth are resolved by the process of rolling weld and fusion weld. All welding seam of batch production test coupon had been up to I-level standard and met the requirements in ground experimental assessment. |
Key words: multi-bellows;welded joints;welding process |