| 摘要: |
| 为提高新一代运载火箭两种不同类型超长导管的可靠性要求，开展了导管环缝焊接系统的研究。针对多环缝、易变形、焊接收缩等超长导管焊接问题，提出了底座组合式调平、管管对焊双边驱动、不同管径可调式支托等技术措施保证焊接质量，实现了排气导管自动旋转焊接和增压导管全位置焊接功能。通过该系统的设计解决了生产技术瓶颈，保证了产品的尺寸和形位精度，提高了产品的可靠性。 |
| 关键词: 超长导管 环缝 装焊系统 |
| 基金项目: |
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| Design of Girth Welding System for Extra-long Pipe |
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Chen Zhenhua Jiang Lan Yuan Liming Li Xu Dai Qin Zhang Xinyu Li Yong Xiao Changyuan
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Capital Aerospace Machinery Co., Ltd., Beijing 100076
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| Abstract: |
| In order to improve the reliability requirements of two different type of extra-long conduits for the new-generation launch vehicles, research on the girth welding system of the extra-long conduit was developed. In view of the welding problems of extra-long pipe of multi-circular joint, easy deformation, and welding shrinkage, technical measures, including combined leveling, double-side drive for pipe butt welding, adjustable support for different pipe diameters, were proposed to ensure the welding quality and the functions of automatic rotating welding of exhaust pipe and all-position welding of pressurized pipe were realized. Through the design of the system, the bottleneck of production technology is solved, the size and shape accuracy of the product are guaranteed and the reliability of the product is improved. |
| Key words: extra-long pipe girth welding fabrication system |
