[1]胡美娟,閔希華,羅金恒,等.凸臺焊接對HFW焊管性能的影響[J].焊管,2018,41(3):53-57.[doi:10.19291/j.cnki.1001-3938.2018.03.011]
 HU Meijuan,MIN Xihua,LUO Jinheng,et al.Influence of Boss-backing Welding on HFW Pipe[J].,2018,41(3):53-57.[doi:10.19291/j.cnki.1001-3938.2018.03.011]
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凸臺焊接對HFW焊管性能的影響()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
41
期數:
2018年第3期
頁碼:
53-57
欄目:
經驗交流
出版日期:
2018-03-28

文章信息/Info

Title:
Influence of Boss-backing Welding on HFW Pipe
文章編號:
10.19291/j.cnki.1001-3938.2018.03.011
作者:
胡美娟1閔希華2羅金恒1邵春明2張 杰2
1. 中國石油集團石油管工程技術研究院,西安 710077;
2. 中石油管道聯合有限公司西部分公司, 烏魯木齊 830013
Author(s):
HU Meijuan 1 MIN Xihua 2 LUO Jinheng 1 SHAO Chunming 2 ZHANG Jie 2
1. Tubular Goods Research center of CNPC, Xi’an 710077, China;
2. Petro China West Pipeline Company, Urumchi 830013, China
關鍵詞:
站場閥室HFW焊管凸臺交叉焊縫焊接殘余應力微觀組織
Keywords:
station and valve chamber HFW pipe boss-backing cross weld welding residual stress microstructure
分類號:
TE973
DOI:
10.19291/j.cnki.1001-3938.2018.03.011
文獻標志碼:
B
摘要:
為解決閥門、儀表和法蘭等安裝過程中凸臺焊機位置不當對HFW焊管整體性能影響的問題,研究了凸臺直接焊接對HFW焊管原始殘余應力、微觀組織的影響。研究表明,HFW電阻焊管上整體殘余應力值較小,直焊縫區域殘余應力值低于管體區域;凸臺焊接后,交叉焊縫附近直焊縫上的軸向和管體上環向殘余應力值陡增了2.5和3.8倍,分別為444 MPa和433 MPa;凸臺焊接對HFW焊管上表面的侵入寬度為15.167 mm,厚度為3.376 mm,侵入區域出現了鏈狀貝氏體。綜上所述,建議在凸臺焊接時采用較小的焊接熱輸入。
Abstract:
In order to solve the influence of unsuitable location of boss-backing welding on overall performance of HFW pipe during valve, instrument and flange Installation, the influence of boss-backing welding on the residual stresses and microstructure of HFW pipe were studied. The results showed that the overall residual stresses of HFW pipe were relatively low. The Residual stress at the longitudinal weld region were lower than the pipe body region. After the boss-backing welding, the axial residual stress at the longitudinal weld and the hoop residual stress at the pipe body region near the cross weld were increased sharply to 2.5 and 3.8 times, respectively, they were 444 MPa and 433 MPa. The invaded width to the HFW pipe after welding was about 15.167 mm, and the depth was about 3.376 mm, and there was chain-typed bainite in invaded zone. It was suggested that small welding heat input was adopted for boss-backing welding.

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備注/Memo

備注/Memo:

收稿日期: 2017-09-19

作者簡介: 胡美娟(1981—),女,高級工程師,2009年畢業于西北工業大學,現從事石油管焊接工作。

更新日期/Last Update: 2018-04-18
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