Study on Welding Process of Friction Welding of Reinforcement Steel Embedded Parts in Nuclear Power Plant

ZENG Fanyong; XIAO Zhiwei; GUO Chengxiang; GAO Yu; LI Zhe; CHENG Xin

doi:10.7512/j.issn.1001-2303.2022.10.17

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Study on Welding Process of Friction Welding of Reinforcement Steel Embedded Parts in Nuclear Power Plant
Vol. 52, Issue 10, Pages: 114-120(2022)
Received：28 September 2022，

Published：20 October 2022
DOI： 10.7512/j.issn.1001-2303.2022.10.17
稿件说明：

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曾凡勇，肖志威，郭城湘，等.核电钢筋预埋件摩擦焊接工艺研究［J］.电焊机，2022，52（10）：114-120. DOI： 10.7512/j.issn.1001-2303.2022.10.17.

ZENG Fanyong, XIAO Zhiwei, GUO Chengxiang, et al.Study on Welding Process of Friction Welding of Reinforcement Steel Embedded Parts in Nuclear Power Plant[J].Electric Welding Machine, 2022, 52(10): 114-120. DOI： 10.7512/j.issn.1001-2303.2022.10.17.

摘要

利用研制的专用多工位预埋件摩擦焊设备，分别采用正交试验、焊接工艺评定、批量试验和模拟试验，针对典型规格核电钢筋预埋件开展了系列工艺研究。结果表明：顶锻量是影响钢筋预埋件摩擦焊接头抗拉强度的重要变素，而顶锻量的影响因素由大到小依次为二级摩擦压力、顶锻压力、二级摩擦时间、转速；针对

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16 mm、

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20 mm、

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22 mm、

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25 mm、

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32 mm五种典型规格钢筋，通过焊接工艺评定试验得出了合格的摩擦焊参数；批量焊接的摩擦焊接头经拉伸试验和弯曲试验全部合格，证明了摩擦焊接设备和工艺的适用性和可靠性，为摩擦焊接技术在核电中的应用提供一定的参考。

Abstract

By using the specially developed multi-station friction welding equipment for embedded parts

the orthogonal test

welding procedure qualification

batch test and simulation test were respectively used to carry out a series of process research for embedded parts of typical specifications of nuclear power reinforcement steel. The results show that the upset dimension is an important variable affecting the tensile strength of the friction welding joint of embedded steel bars. The factors influencing the upset dimension are secondary friction pressure

secondary friction pressure

secondary friction time and rotational speed in descending order. The qualified friction welding parameters are obtained for five typical steel bars of