[1]陈延清,张建强,等.焊接工艺对22 mm壁厚X80管道环焊缝冲击韧性的影响[J].焊管,2016,39(2):44-50.[doi:10.19291/j.cnki.1001-3938.2016.02.010]
 CHEN Yanqing,ZHANG Jianqiang,MU Shukun,et al.Influence of Welding Technology on Circumferential Weld Impact Toughness of 22 mm Thickness X80 Pipeline[J].,2016,39(2):44-50.[doi:10.19291/j.cnki.1001-3938.2016.02.010]
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焊接工艺对22 mm壁厚X80管道环焊缝冲击韧性的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
39
期数:
2016年第2期
页码:
44-50
栏目:
工艺与设备
出版日期:
2016-02-28

文章信息/Info

Title:
Influence of Welding Technology on Circumferential Weld Impact Toughness of 22 mm Thickness X80 Pipeline
文章编号:
10.19291/j.cnki.1001-3938.2016.02.010
作者:
陈延清1张建强1 2牟淑坤1刘 宏1张飞虎1
1. 首钢技术研究院, 北京 100043;
2. 中国石油大学(北京), 北京 102249
Author(s):
CHEN Yanqing1 ZHANG Jianqiang12 MU Shukun1 LIU Hong1 ZHANG Feihu1
1. Shougang Research Institute of Technology, Beijing 100043, China;
2. China University of Petroleum(Beijing), Beijing 102249, China
关键词:
焊接热输入自保护药芯焊丝冲击韧性
Keywords:
welding heat input self-shielded flux cored wire impact toughness
分类号:
TG444.2
DOI:
10.19291/j.cnki.1001-3938.2016.02.010
文献标志码:
B
摘要:
为了优化22 mm壁厚X80管道施工中环焊缝焊接工艺,采用管线铺设过程中常用的自保护药芯焊丝半自动焊接工艺,研究了不同焊接热输入及焊道排列对焊缝组织和冲击韧性的影响。结果显示,在所研究的热输入范围内,焊道排列对焊缝组织和冲击韧性影响不大;焊接热输入在16 kJ/cm以上时,焊缝金属的冲击韧性急剧下降;焊接热输入在10 kJ/cm时,焊缝金属的冲击韧性波动较大;热输入在12~15 kJ/cm时,焊缝金属的冲击性能最佳。研究表明,X80自保护药芯焊丝对焊接热输入较为敏感,采用12~15 kJ/cm的热输入施焊,可确保焊缝金属的冲击韧性满足工程技术要求,此时焊道排列对焊缝金属的冲击韧性无影响。
Abstract:
In order to optimize the circumferential weld welding technology in the construction of 22 mm thickness X80 pipeline, adopting self-shielded flux cored wire semi-automatic welding technology, commonly used in pipeline laying, to study the influence of different welding heat input and welding bead arrangement on weld microstructure and impact toughness. The Results showed that within the studied range of the heat input, the welding bead arrangement has a little effect on the microstructure and impact toughness; when the heat input is higher than 16 kJ/cm, the impact toughness of weld metal declines sharply; when the heat input is in the range of 12~15 kJ/cm, the impact toughness of weld metal is the best. The research indicated that X80 self-shielded flux cored wire is sensitive to welding heat input, using 12~15 kJ/cm heat input can ensure impact toughness of weld metal meet the engineering technology requirements,  at this moment the welding bead arrangement has no influence on weld metal.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015-11-18
作者简介: 陈延清(1967—), 女, 博士, 教授级高工, 主要从事金属焊接性研究和焊接材料开发工作,发表论文20余篇。
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