[1]张 红,刘克永,胡海朝,等.多丝埋弧焊管焊接接头硬度与冲击韧性统计分析[J].焊管,2013,36(2):63-66.[doi:1001-3938(2013)02-0063-04]
 ZHANG Hong,LIU Keyong,HU Haichao,et al.Statistical Analysis on Hardness and Impact Toughness of Multiple Wire Submerged Arc Welded Pipe Joint[J].,2013,36(2):63-66.[doi:1001-3938(2013)02-0063-04]
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多丝埋弧焊管焊接接头硬度与冲击韧性统计分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第2期
页码:
63-66
栏目:
经验交流
出版日期:
2013-02-28

文章信息/Info

Title:
Statistical Analysis on Hardness and Impact Toughness of Multiple Wire Submerged Arc Welded Pipe Joint
文章编号:
1001-3938(2013)02-0063-04
作者:
张 红12刘克永3胡海朝4赵 波12杨玮玮12李国鹏12
(1.中油集团渤海装备研究院钢管研究所,河北 青县062658;
2.国家石油天然气管材工程技术研究中心,陕西 宝鸡721008;
3.中油集团渤海装备巨龙钢管公司,河北 青县062658;
4.天津大学 材料科学与工程学院,天津300192)
Author(s):
ZHANG Hong12 LIU Keyong 3HU Haichao4ZHAO Bo12YANG Weiwei12LI Guopeng12
(1.Bohai Equipment Research Institute Steel Pipe Research Institute, Qingxian 062658, Hebei, China;
2.National Petroleum and Gas Tubular Goods Engineering Technology Research Center,Baoji 721008,Shaanxi,China;
3.Bohai Equipment Julong Steel Pipe Co., Ltd., Qingxian 062658, Hebei, China;
4.School of Materials Science and Engineering, Tianjin University, Tianjin 300192, China)
关键词:
关键词:直缝焊管多丝埋弧焊硬度冲击韧性统计学评价
Keywords:
Key words: longitudinal welded pipe multi-wire SAW hardness impact toughness statistics evaluation
分类号:
TG142, TG115
DOI:
1001-3938(2013)02-0063-04
文献标志码:
B
摘要:
采用统计分析方法对多丝埋弧焊管母材、焊缝及HAZ显微硬度和冲击韧性变化规律进行了分析,主要探讨X70钢级多丝埋弧焊管焊缝及母材区域的随机硬度分布规律,并对同种钢级不同钢厂生产的X70钢管冲击韧性分布做了对比。结果表明,不同钢厂生产的X70多丝埋弧焊管母材、焊缝显微硬度均具有较好的正态分布规律,热影响区则由于化学成分和组织性能上有较大的不均匀性,其随机硬度数据也不符合严格的正态分布,容易成为其焊接的薄弱环节。利用统计学知识可以对不同钢厂母材的硬度及夏比冲击韧性进行评价,为多丝埋弧焊管质量及工艺分析提供一种新的思路。
Abstract:
The change rules of base metal, weld, HAZ microhardness and Charpy impact toughness of multi-wire SAW pipe were analyzed using statistical methods, the random hardness distribution law of the X70 multi-wire SAW pipe weld and base metal was discussed, and the Charpy impact energy distribution of X70 steel pipe produced by different factories were compared. The results indicated that the microhardness of weld and base metal of X70 multi-wire SAW pipe, which produced by different steel makers,is with better normal distribution. But the HAZ microhardness doesn’t obey the normal distribution due to large inhomogeneities in the chemical compositions and performance, which easily becomes to be the weak link in welding. Adopting statistical knowledge to evaluate base metal hardness and Charpy impact toughness for different steel makers, will provide a new idea for multi-wire SAW pipe quality and process analysis.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:张红(1980—),女,工程师,工学硕士,主要从事埋弧焊管焊接工艺及质量研究工作。
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