[1]蔡文利.包申格效应对X 65、 X70、 X80钢级螺旋埋弧焊管强度的影响[J].焊管,2020,43(4):56-60.[doi:10.19291/j.cnki.1001-3938.2020.04.010]
 CAI Wenli.Impact of Bauschinger Effect on the Strength of X65 X70 and X80 Spiral Submerged Arc Welded Pipe[J].,2020,43(4):56-60.[doi:10.19291/j.cnki.1001-3938.2020.04.010]
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包申格效应对X 65、 X70、 X80钢级
螺旋埋弧焊管强度的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
43
期数:
2020年第4期
页码:
56-60
栏目:
经验交流
出版日期:
2020-04-28

文章信息/Info

Title:
Impact of Bauschinger Effect on the Strength of X65 X70 and X80
Spiral Submerged Arc Welded Pipe
文章编号:
10.19291/j.cnki.1001-3938.2020.04.010
作者:
蔡文利
宝鸡石油钢管有限责任公司, 陕西 宝鸡 721008
Author(s):
CAI Wenli
Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
螺旋埋弧焊管X65钢X70钢X80钢包申格效应屈强比
Keywords:
spiral submerged arc welded pipe X65 steel X70 steel X80 steel bauschinger effect yield ratio
分类号:
TG113.251
DOI:
10.19291/j.cnki.1001-3938.2020.04.010
文献标志码:
B
摘要:
为了探寻螺旋埋弧焊管生产过程中产生的包申格效应对焊管强度的影响规律,分析了包申格效应产生的原因,并以X65、X70和X80钢卷板及其钢管为研究对象,分别在卷板和钢管上取样进行拉伸试验。试验和分析结果表明:钢管成型和试样加工过程中,钢板外层和内层的金属会向相反的方向发生两次塑性变形,这是螺旋焊管产生包申格效应的主要原因;不同取样形式与加工方法,包申格效应的表现也略有不同;受包申格效应影响,X65和X70钢管的屈强比较卷板有所下降,但X80钢管部分壁厚中反而有升高的趋势。包申格效应对不同材质、不同径厚比螺旋埋弧焊管拉伸性能的影响不同,制管厂在制定卷板技术条件时应充分考虑包申格效应的影响。
Abstract:
In order to explore the impact of the bauschinger effect on the welded pipe strength during the production of the spiral submerged arc welded pipe, the causes of the bauschinger effect were analyzed, and the steel plate bending and pipes of X65, X70 and X80 steel were taken as the research object, and tensile tests were carried out on the samples of the plate bending and steel pipes respectively. The analysis and test results show that the main reason for the bauschinger effect is that the metal in the outer and inner layers of the steel plate will undergo two plastic deformations in the opposite directions during the process of the steel pipe forming and sample processing. The performance of the bauschinger effect is also slightly different with the different sampling forms and processing methods. Compared with the plate bending, the yield ratio of X65 and X70 steel pipe decreased due to the influence of the bauschinger effect, but it tends to increase in partical wall thickness of X80. The impact of the bauschinger effect on the tensile properties of the spiral submerged arc welded pipes with different materials and diameter-thickness ratios is different. The influence of bauschinger effect should be fully considered in the formulation of the rolling plate technical conditions.

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备注/Memo

备注/Memo:

收稿日期:2019-11-25

作者简介:蔡文利(1979—),女,高级工程师,主要从事螺旋埋弧焊管焊接工艺与设备等方面研究。

更新日期/Last Update: 2020-05-20