[1]隋永莉.大应变钢管在管道建设中的应用及现场焊接技术[J].焊管,2013,36(6):32-36.[doi:1001-3938(2013)06-0032-05]
 SUI Yongli.Application and Field Welding Technology of Large Strain Steel Pipe in Pipeline Construction[J].,2013,36(6):32-36.[doi:1001-3938(2013)06-0032-05]
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大应变钢管在管道建设中的应用及现场焊接技术
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第6期
页码:
32-36
栏目:
应用与开发
出版日期:
2013-06-28

文章信息/Info

Title:
Application and Field Welding Technology of Large Strain Steel Pipe in Pipeline Construction
文章编号:
1001-3938(2013)06-0032-05
作者:
隋永莉
(1.油气管道输送安全国家工程实验室,河北 廊坊 065000;
2.中国石油天然气管道科学研究院,河北 廊坊 065000)
Author(s):
SUI Yongli12
(1. State Engineering Laboratory of Oil and Gas Pipeline Transportation Safety, Langfang 065000, Hebei, China;
2. CNPC Pipeline Science Research Institute, Langfang 065000, Hebei, China)
关键词:
大应变钢管基于应变设计环焊接头焊接高强匹配
Keywords:
large strain steel pipe strain based design circumferential welded joint welding high strength match
分类号:
TE973
DOI:
1001-3938(2013)06-0032-05
文献标志码:
A
摘要:
介绍了大应变钢管应用的相关技术要求,探讨分析了大应变钢管现场焊接的技术特点和面临的难题,针对焊接材料强度不足及环焊接头近缝区软化,难以实现焊接接头高强匹配的问题,提出在环焊缝焊接时,增加盖面焊缝的宽度和余高,即采用补强的方法使得环焊接头的整体强度高于母材,并在制造过程中严格控制抗拉强度上限值,降低焊接软化程度和软化宽度,以实现环焊缝的高强匹配的。大应变钢管具有足够的强度和变形能力,对环焊接头的综合性能要求更高,实际应用中应综合考虑钢管、焊材和焊接工艺等各方面因素,才能保证大应变钢管在管道建设中安全应用。
Abstract:
In this article, it introduced the related technical requirements of large strain steel pipe application, discussed and analyzed the technical characteristics and difficulties confronted in field welding. Aimed at some problems, such as insufficient strength of welding material, near weld zone of circumferential welded joint softening, difficultly realize high strength match for welded joint, it put forward increasing the width and reinforcement of cap weld in circumferential weld welding. That is to adopting reinforce method to make the whole strength of welded joint is higher than that of base metal, strictly control the upper limit value of tensile strength, reduce softening degree and softening width of welding, in order to realize high strength match of circumferential weld. The large strain steel pipe is with sufficient strength and deformability, its demand to overall performance of circumferential welded joint is higher. In practical application, it should comprehensively consider steel pipe, welding material, welding process and other factors, only to ensure safety application of large strain steel pipe in pipeline construction.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:隋永莉(1970—),女,博士,高级工程师,主要从事油气管道及储罐的现场焊接技术研究工作,在国内外发表论文40余篇。
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