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| X70抗大变形直缝埋弧焊管的开发 | |
| 引用本文： | 陈小伟,付彦宏,王旭,熊祥江,王东超.X70抗大变形直缝埋弧焊管的开发[J].焊管,2012,35(3):71-75. |
| 作者姓名： | 陈小伟 付彦宏 王旭 熊祥江 王东超 |
| 作者单位： | 1. 渤海装备巨龙钢管公司,河北青县,062658 2. 渤海装备研究院钢管研究所,河北青县,062658 3. 湖南华菱湘潭钢铁有限公司,湖南湘潭,411101 |
| 摘 要： | 针对基于应变设计地区管道建设,尤其是中缅管线项目所需的X70抗大变形焊管进行研究开发。采用铁素体＋贝氏体双相组织的高应变能力的钢板,结合新开发的制管工艺,使批量研制的X70抗大变形焊管具有良好的强度、均匀延伸率、应力比等优点。通过对制管前后的拉伸性能进行对比,发现大变形钢板制管后屈服强度、抗拉强度大幅提高,而均匀延伸率、应力比等指标有所下降;热时效试验表明,时效处理后钢管纵向屈服强度、抗拉强度均升高,而均匀延伸率、应力比等指标进一步下降。 |
| 关 键 词： | X70 抗大变形 直缝埋弧焊管 |
Development of X70 SAWL Pipe with Large Deformation Resistance |
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| CHEN Xiao-wei , FU Yan-hong , WANG Xu , XIONG Xiang-jiang , WANG Dong-chao.Development of X70 SAWL Pipe with Large Deformation Resistance[J].Welded Pipe and Tube,2012,35(3):71-75. | |
| Authors: | CHEN Xiao-wei FU Yan-hong WANG Xu XIONG Xiang-jiang WANG Dong-chao |
| Affiliation: | 1(1.Bohai Equipment Manufacturing Co.,Ltd.Julong Steel Pipe Co.,Ltd.,Qingxian 062658,Hebei,China; 2.Bohai Equipment Research Institute Steel Pipe Research Institute,Qingxian 062658,Hebei,China; 3.Hunan Valin Xiangtan Iron and Steel Co.,Ltd.(XISC),Xiangtan 411101,Hunan,China) |
| Abstract: | According to pipeline construction in strain design region,the development for X70 welded pipe with large deformation resistance used in Myanmar-China pipeline project was researched.Adopting ferrite+ bainite dual-phase structure and steel plate wit high strain,combined with the developed manufacturing process,to mass produce X70 welded pipe with large deformation resistance.The X70 pipe possesses good strength,uniform elongation percentage,stress ratio and etc.Through tensile property comparison before and after manufacturing pipe,the yield strength and tensile strength greatly increase after manufacturing pipe,while uniform elongation percentage and stress ratio reduce.The result of heat aging test indicated that both the longitudinal yield strength and tensile strength increase after heat aging,while uniform elongation percentage and stress ratio reduce. |
| Keywords: | X70 large deformation resistance longitudinal welded pipe |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
