[1]肖 健,郭晓疆.管道环焊缝冷裂纹试验方法研究[J].焊管,2015,38(4):26-32.[doi:1001-3938(2015)04-0026-07]
 XIAO Jian,GUO Xiaojiang.Research on Pipeline Circumferential Weld Cold Crack Test Metho[J].,2015,38(4):26-32.[doi:1001-3938(2015)04-0026-07]
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管道环焊缝冷裂纹试验方法研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
38
期数:
2015年第4期
页码:
26-32
栏目:
应用与开发
出版日期:
2015-04-28

文章信息/Info

Title:
Research on Pipeline Circumferential Weld Cold Crack Test Metho
文章编号:
1001-3938(2015)04-0026-07
作者:
肖 健郭晓疆
(中国石油天然气管道科学研究院,河北 廊坊 065000)
Author(s):
XIAO Jian GUO Xiaojiang
(Pipeline Research Institute of CNPC, Langfang 065000, Hebei, China)
关键词:
焊管环焊缝冷裂纹有限元
Keywords:
welded pipe circumferential weld cold crack finite element
分类号:
TG457.6
DOI:
1001-3938(2015)04-0026-07
文献标志码:
A
摘要:
国内外常用评定冷裂纹敏感性的试验方法有20多种,选择其中的斜Y形坡口试验、刚性拘束裂纹试验(RRC试验)和里海试验进行分析对比。通过对这3种冷裂试验方法拘束度的有限元计算以及管道对接环焊缝拘束度的模拟计算,得出以下结论:①同种材料、同样焊接工艺条件下,斜Y形坡口试验和平板对接试验焊缝拘束度远大于管道对接环焊缝的拘束度;②里海试验拘束度的大小与开槽的长度有关,槽越深,拘束度越小;同种材料、同样焊接工艺条件下,通过改变里海试样开槽长度可以模拟实际管道的拘束情况。
Abstract:
The test methods of cold crack sensitivity evaluation commonly used at home and abroad are more than 20, in this article, the inclined Y type groove test, rigid restraint cracking(RRC) test and Caspian Sea test were selected to conduct analysis and contrast. Through finite element calculation for the above 3 cold crack test methods restraint intensity and simulated calculation of pipeline butt circumferential weld restraint intensity, the following conclusions were obtained: ① under the condition of same material and same welding process, the restraint intensity of inclined Y type groove test and plate butt weld is much larger than that of pipeline butt circumferential weld; ② the restraint intensity of Caspian Sea test is related to the length of groove, the deeper the groove is, the smaller the constraint intensity is. Under the condition of the same welding process and same material, by changing the groove length of the Caspian Sea sample can simulate the actual pipeline constraint intensity.

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备注/Memo

备注/Memo:
收稿日期:2014-12-12
作者简介:肖健(1988—),男,硕士,助理工程师,主要研究方向为管线钢焊接工艺及材料性能。
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