[1]聂向晖,徐 斌,许 彦,等.X60M螺旋焊管泄露原因分析[J].焊管,2020,43(1):20-25.[doi:10.19291/j.cnki.1001-3938.2020.01.004]
 NIE Xianghui,XU Bin,XU Yan,et al.Cause Analysis of X60M Spiral Welded Pipe Leakage[J].,2020,43(1):20-25.[doi:10.19291/j.cnki.1001-3938.2020.01.004]
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X60M螺旋焊管泄露原因分析()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
43
期数:
2020年第1期
页码:
20-25
栏目:
试验与研究
出版日期:
2020-01-28

文章信息/Info

Title:
Cause Analysis of X60M Spiral Welded Pipe Leakage
文章编号:
10.19291/j.cnki.1001-3938.2020.01.004
作者:
聂向晖1徐 斌2许 彦1刘迎来1李 亮1丰振军1
1. 中国石油集团石油管工程技术研究院, 西安 710077;
2. 中国石油管道有限责任公司西气东输分公司, 上海 200120
Author(s):
NIE Xianghui1 XU Bin2 XU Yan1 LIU Yinglai1 LI Liang1 FENG Zhenjun1
1. CNPC Tubular Goods Research Institute, Xi’an 710077, China;
 2. West-East Gas Pipeline Company, PetroChina Pipeline Co., Ltd., Shanghai 200120, China
关键词:
螺旋焊管X60M泄露裂纹Cu污染
Keywords:
spiral welded pipe X60M leakage crack Cu pollution
分类号:
TG142. 13
DOI:
10.19291/j.cnki.1001-3938.2020.01.004
文献标志码:
A
摘要:
为了查明某X60M螺旋焊管泄露原因,通过力学试验、金相分析、扫描电镜和能谱分析等手段,对该泄露管段进行了理化检验及失效分析。检验发现,该焊管内壁泄漏部位处存在组织异常、开裂及铜污染。经分析,钢管泄露的主要原因是:在钢管焊接过程中,由于操作不当,Cu电极与管体接触,当两者间接触不良时,电阻增大,产生电弧,高温电弧导致管体灼伤及Cu电极的熔化,从而使该部位发生开裂及Cu污染。
Abstract:
In order to find out the leaking cause of a certain X60M spiral welded pipe,physical and chemical examination and failure analysis were carried out for the leaking pipe section by means of mechanical test,metallographic analysis,scanning electron microscopy and energy spectrum analysis. It was found that there were abnormal cracks and copper contamination in the leaking part of the inner wall of the welded pipe. According to the analysis,the main reasons for the leakage of the steel pipe are as follows,during the welding of the steel pipe, due to improper operation,the Cu electrode is in contact with the pipe body. When the contact between the two is poor,the resistance becomes larger and an electric arc is generated. The high-temperature electric arc leads to the burning of the pipe body and the melting of the Cu electrode,which leads to the cracking of the part and Cu pollution.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-04-01
基金项目: 国家重点研发计划项目“典型城市民生设施质量检测与评价技术研究”(项目编号2018YFF0215003)。
作者简介:聂向晖(1972—),男,高级工程师,主要从事石油管材技术服务及失效分析工作。
更新日期/Last Update: 2020-02-21