[1]侯文辉,郭 毅,李红艳,等.海洋平台大厚度异种钢焊接接头的CTOD试验探究[J].焊管,2017,40(12):14-18.[doi:DOI：10.19291/j.cnki.1001-3938.2017.12.003]
　HOU Wenhui,GUO Yi,LI Hongyan,et al.Study on CTOD Test of Dissimilar Steel Welded Joints with LargeThickness on Offshore Platform[J].,2017,40(12):14-18.[doi:DOI：10.19291/j.cnki.1001-3938.2017.12.003]
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海洋平台大厚度异种钢焊接接头的CTOD试验探究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
40
期数:
2017年第12期
页码:
14-18
栏目:
试验与研究
出版日期:
2017-12-28

文章信息/Info

Title:
Study on CTOD Test of Dissimilar Steel Welded Joints with Large
Thickness on Offshore Platform
文章编号:
DOI：10.19291/j.cnki.1001-3938.2017.12.003
作者:
侯文辉; 郭 毅; 李红艳; 刘 涛
?太重滨海海工装备分公司，天津 300450
Author(s):
HOU Wenhui;  GUO Yi;  LI Hongyan;  LIU Tao
?Taiyuan Heavy Industry Binhai Offshore Equipment Branch, Tianjin 300450, China
关键词:
EH36+E550; 大厚度; 焊接接头; CTOD; 焊后热处理
Keywords:
E550 + EH36;  large thickness;  welded joint;  crack tip opening displacement;  postweld heat treatment
分类号:
TG407
DOI:
DOI：10.19291/j.cnki.1001-3938.2017.12.003
文献标志码:
A
摘要:
为了提高大厚度海洋工程结构的安全可靠性，采用药芯焊丝气体保护焊打底、埋弧焊填充和盖面的焊接工艺对55 mm厚度EH36+E550异种钢进行焊接，并对焊接接头进行CTOD试验。试验结果表明，EH36+E550大厚度异种钢焊接接头的CTOD值满足DNV要求，从而可免除焊后热处理，为海洋平台的施工建造提供科学依据。钻井平台桩靴结构制造的实践表明，采用该焊接工艺，在保证焊接结构安全性的前提下，极大提高了生产效率，降低了焊工的劳动强度，节约了建造成本，缩短了平台建造周期。
Abstract:
In order to enhance the safety and reliability of large thickness oceaneering structure, the thickness of 55 mm EH36 and E550 steel were welded with flux-cored wire gas shielded arc root welding and submerged arc welding filling and covering, and welded joint experimented for CTOD test. The test results showed that the CTOD value of EH36 and E550 dissimilar steel welded joint with large thickness met DVN requirement, so postweld heat treatment was exempted, and scientific basis was offered for construction of offshore platform. The practices of pile shoe structural fabrication of drilling platform indicated that this welding technology increased production efficiency greatly, reduced the labor intensity, saved construction cost and shortened period of platform construction under safety.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期： 2017-09-01
作者简介： 侯文辉（1976—）， 男， 硕士研究生， 工程师，主要从事海洋工程焊接工艺相关工作。
更新日期/Last Update: 2018-02-23