消除大型结构件焊接畸变的焊后热处理工艺

doi:10.13251/j.issn.0254-6051.2022.02.042

金属热处理 ›› 2022, Vol. 47 ›› Issue (2): 236-242.DOI: 10.13251/j.issn.0254-6051.2022.02.042

消除大型结构件焊接畸变的焊后热处理工艺

张锦刚, 晁利宁, 汪强, 杨晓龙, 周新义, 唐家睿

中油国家石油天然气管材工程技术研究中心有限公司, 陕西西安 710000

收稿日期:2021-08-20 修回日期:2021-09-13 出版日期:2022-02-25 发布日期:2022-04-01
作者简介:张锦刚(1977—),男,高级工程师,主要研究方向为焊接材料开发和焊接工艺,E-mail:bsgzjg@cnpc.com.cn

Post weld heat treatment process to eliminate welding distortion of large structural parts

Zhang Jingang, Chao Lining, Wang Qiang, Yang Xiaolong, Zhou Xinyi, Tang Jiarui

Petro China National Oil and Gas Pipe Engineering Technology Research Center Co., Ltd., Xi'an Shaanxi 710000, China

Received:2021-08-20 Revised:2021-09-13 Online:2022-02-25 Published:2022-04-01

摘要/Abstract

摘要： 利用有限元通用分析软件,模拟了大型焊接结构件焊后热处理前后构件的畸变分布。结果表明,焊态下结构件的最大畸变主要集中在中分面法兰处。通过模拟构件的总体畸变和结构法兰处的畸变分布,分析得出经过650 ℃保温6 h焊后热处理后,构件的总体畸变较小,且结构法兰处的畸变分布和焊后畸变分布呈较好的镜像对称性,可以有效改善焊后畸变,并有利于构件的尺寸稳定性。

关键词: 大型焊接结构件, 有限元模拟, 焊接畸变, 热处理工艺, 残余应力

Abstract: Distortion distribution of large welded structural parts before and after post weld heat treatment was simulated by using finite element software. The results show that the maximum distortion of the welded structural parts is mainly concentrated at the middle parting flange. By simulating the overall distortion and the distortion distribution of the structural flange, the results show that after post weld heat treatment at 650 ℃ for 6 h, the overal distortion of the structural parts is small, and the distortion distribution of the structural flange shows a good mirror symmetry with that of the welded one, which effectively improves the post welding distortion and is beneficial to the size stability of the structural parts.

Key words: large-scale welded structural parts, finite element simulation, welding distortion, heat treatment process, residual stress

中图分类号:

TG404

张锦刚, 晁利宁, 汪强, 杨晓龙, 周新义, 唐家睿. 消除大型结构件焊接畸变的焊后热处理工艺[J]. 金属热处理, 2022, 47(2): 236-242.

Zhang Jingang, Chao Lining, Wang Qiang, Yang Xiaolong, Zhou Xinyi, Tang Jiarui. Post weld heat treatment process to eliminate welding distortion of large structural parts[J]. Heat Treatment of Metals, 2022, 47(2): 236-242.

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消除大型结构件焊接畸变的焊后热处理工艺

Post weld heat treatment process to eliminate welding distortion of large structural parts

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