[1]张 新,曹战斌,唐景武,等.利用磁阻特性减小钢管剩磁对焊接的影响[J].焊管,2008,31(3):76-77.[doi:1001-3938(2008)02-0076-02]
 ZHANG Xin,YIN Ji-shan,WANG Xia,et al.Using Magnetism Resistance Characteristic to Reduce Residual Magnetism Effect on Weld of Steel Pipe[J].,2008,31(3):76-77.[doi:1001-3938(2008)02-0076-02]
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利用磁阻特性减小钢管剩磁对焊接的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
31
期数:
2008年第3期
页码:
76-77
栏目:
经验交流
出版日期:
2008-05-28

文章信息/Info

Title:
Using Magnetism Resistance Characteristic to Reduce Residual Magnetism Effect on Weld of Steel Pipe
文章编号:
1001-3938(2008)02-0076-02
作者:
张   新曹战斌唐景武孙洪强
(中国石油天然气管道局第三工程分公司)
Author(s):
ZHANG XinYIN Ji-shanWANG XiaTANG Jing-wu
关键词:
石油管道焊接电弧剩磁磁偏吹磁阻
Keywords:
oil pipelinewelding arcresidual magnetismmagnetic blowmagnetic resistance
分类号:
TG441.4
DOI:
1001-3938(2008)02-0076-02
文献标志码:
B
摘要:
在利比亚西部陆上石油管道安装施工过程中发现约有200 km钢管存在剩磁,且剩磁感应强度较大,剩磁导致电弧偏吹,严重影响焊接操作和焊接质量。分析了现有消磁方法的不足,提出了利用磁场和磁阻的性质,采取在对接钢管接头空隙间插入金属楔板的措施,改善了电弧周围的磁场分布,从而有效地减小了剩磁对焊接电弧的影响。
Abstract:
This article introduced that it has been found there was about 200km pipeline existed residual magnetism during oil pipeline installation in west area in Libya.And residual magnetism induction intensity was great,which result in arc blow and severely effect welding operation and welding quality.It analyzed lack of present demagnetization method,put forward using magnetic field and magnetic characteristic and insert metal wedge in interspace of steel pipes connections welding to improve magnetic field distributing around  welding arc.This method reduced residual magnetism effect on welding arc.

参考文献/References:

[1]许贵芝,译.俄罗斯管道焊接前的现代消磁方法[J].焊管,2002,25(5):57-60.
[2]何义和.大学物理导论(上、下册)[M].北京:清华大学出版社,2000.

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备注/Memo

备注/Memo:
张新(1974-),男,工程硕士,主要从事油气长输管道施工焊接质量控制、项目管理等工作。
收稿日期:2007-10-12
更新日期/Last Update: