[1]韦 奉,等.国产55钢级SEW膨胀管实物试验研究*[J].焊管,2016,39(2):19-21,28.[doi:10.19291/j.cnki.1001-3938.2016.02.005]
 WEI Feng,LI Yuanzheng,HE Shilei,et al.Experiment Research of Domestic 55 Steel Grade SEW Expansion Pipe[J].,2016,39(2):19-21,28.[doi:10.19291/j.cnki.1001-3938.2016.02.005]
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国产55钢级SEW膨胀管实物试验研究*
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
39
期数:
2016年第2期
页码:
19-21,28
栏目:
应用与开发
出版日期:
2016-02-28

文章信息/Info

Title:
Experiment Research of Domestic 55 Steel Grade SEW Expansion Pipe
文章编号:
10.19291/j.cnki.1001-3938.2016.02.005
作者:
韦 奉1 2李远征1 2何石磊1 2张 峰1 2
1. 国家石油天然气管材工程技术研究中心, 陕西 宝鸡 721008;
2. 宝鸡石油钢管有限责任公司 钢管研究院, 陕西 宝鸡 721008
Author(s):
WEI Feng12 LI Yuanzheng12 HE Shilei12 Zhang Feng12
1. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China;
2. Steel Pipe Research Institute, Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
膨胀管热张力减径电阻焊膨胀性能力学性能
Keywords:
expansion pipe hot stretch-reducing electric welding expansion performance mechanical properties
分类号:
TG115.5
DOI:
10.19291/j.cnki.1001-3938.2016.02.005
文献标志码:
A
摘要:
为了评估国产55钢级SEW膨胀管的综合力学性能,采用液压式膨胀方法对国产55钢级SEW膨胀管(牌号为BX55)进行了实物膨胀试验,并对膨胀后钢管的尺寸、力学性能、抗内压至失效、抗外压挤毁性能进行了研究。结果显示,BX55液压膨胀11.5 %的启动压力为24 MPa,行进压力为22~25 MPa,膨胀过程的压力平稳;膨胀后管材的屈服强度为499 MPa,抗拉强度为562 MPa,伸长率29%,母材横向和焊缝中心半尺寸试样0 ℃夏比冲击功分别为66 J和48 J,抗内压至失效压力超出API SPEC 5CT要求值87%,抗外压挤毁强度高于API RP 5C3标准要求值9%。试验结果表明,国产55钢级SEW膨胀管的综合力学性能优良。
Abstract:
In order to assess the comprehensive mechanical properties of domestic 55 steel grade SEW expansion pipe, the expansion test for domestic 55 grade SEW expansion pipe(No. BX55) was conducted by adopting hydraulic expansion method.Meanwhile, the steel pipe size, mechanical properties, internal pressure up to failure and external collapse-resistant strength after expansion pipe were investigated. The results indicated that the starting pressure of BX55(expansion ration up to 11.5%) is
24 MPa, the marching pressure is 22~25 MPa, and the pressure in expansion process is stable. After expansion, the yield strength is 499 MPa, the tensile strength is 562 MPa, the elongation is 29%, and the impact values(1/2-size, 0 ℃) of base mental and weld are 66 J and 48 J, respectively. The internal pressure exceeds 87% of API SPEC 5 CT requirement value, and the collapse pressure is 9% above the requirement of API RP 5C3. The test results showed that the comprehensive mechanical properties of domestic 55 steel grade SEW expansion pipe is good.

参考文献/References:

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[9] 韦奉,毕宗岳,李远征,等. 国产80钢级SEW膨胀管实物试验研究[J]. 钢管,2014,43(3):34-38.
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备注/Memo

备注/Memo:
收稿日期: 2015-06-10
基金项目: 陕西省科技统筹创新工程计划项目“高性能SEW膨胀管关键技术研究”(项目号: 2015KTCL01-15)。
作者简介:韦   奉(1977—), 男, 硕士, 工程师, 主要从事油气管材及制造工艺技术研究。
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