[1]赵智力,王鹏,刘鑫,等.焊接顺序对大型容器方形法兰焊接变形的影响[J].哈尔滨理工大学学报,2019,(04):89-93.[doi:10.15938/j.jhust.2019.04.015]
 ZHAO Zhi-li,WANG Peng,LIU Xin,et al.The Influence of Welding Sequence on Welding Deformation of Large Container Rectangular Flange[J].哈尔滨理工大学学报,2019,(04):89-93.[doi:10.15938/j.jhust.2019.04.015]
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焊接顺序对大型容器方形法兰焊接变形的影响()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2019年04期
页码:
89-93
栏目:
材料科学与工程
出版日期:
2019-08-25

文章信息/Info

Title:
The Influence of Welding Sequence on Welding Deformation of Large Container Rectangular Flange
文章编号:
1007-2683(2019)04-0089-05
作者:
赵智力王鹏刘鑫王敏
(哈尔滨理工大学 材料科学与工程学院,黑龙江 哈尔滨 150040)
Author(s):
ZHAO Zhi-liWANG PengLIU XinWANG Min
(School of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China)
关键词:
焊接顺序方形法兰角焊缝角变形挠曲变形
Keywords:
Welding sequence Square flange Fillet welds Angular deformation Flexural deformation
分类号:
TG 404
DOI:
10.15938/j.jhust.2019.04.015
文献标志码:
A
摘要:
针对大型容器升高座方形法兰结构的焊接变形问题,结合焊接过程的仿真计算结果,分析了变形的性质及发生机理,考察了焊接顺序对变形的影响,结果表明:法兰盘与立向壁板之间的大尺寸角焊缝焊后因焊缝表面的横向收缩远大于焊根而发生明显的角变形;同时又因该角焊缝偏离结构中性轴、并位于中性轴的下方,因而法兰呈现上凸的挠曲变形;法兰的变形是角变形和挠曲变形综合作用的结果。法兰的平面度决定容器泄漏情况,长度中心焊至宽度中心的对称焊顺序下的法兰平面度最小,约为1.8mm,为宽度中心焊至长度中心对称焊的53%。
Abstract:
Aiming at the welding deformation problem of the rectangular flange of large container raised seat, the property and mechanism of the deformation were analyzed in combination with the simulation result of the welding process, and the influence of the welding sequence on the deformation was investigated. The results showed that the transverse shrinkage of the surface of the largesize fillet weld between the flange and the vertical wall plates is much larger than that of weld root, and the obvious angular deformation is caused; Meanwhile, because the fillet weld deviated from the structural neutral axis and located below the neutral axis, so the flange exhibited a upward convex flexure deformation. The deformation of flange welding structure is the result of the combined action of angular deformation and flexural deformation. The flange flatness determines the leakage state of the container. The flange flatness is the smallest ( about 1.8 mm) under the symmetrical welding sequence from the length center welding to the width center, which is 53% of the symmetrical welding sequence from the width center welding to the length center.

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备注/Memo

备注/Memo:
?收稿日期: 2017-05-31
基金项目: 黑龙江省自然科学基金(E201449)
作者简介:
王鹏(1989—),男,硕士研究生;
刘鑫(1990—),男,硕士研究生
通信作者:
赵智力(1972—),女,副教授,硕士研究生导师,E-mail:860557798@qq.com
更新日期/Last Update: 2019-09-03