| Q235B螺旋焊管断裂分析 |
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| 引用本文： | 姚小静,张峰,席光峰,王培东.Q235B螺旋焊管断裂分析[J].管道技术与设备,2011(2):31-32. |
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| 作者姓名： | 姚小静 张峰 席光峰 王培东 |
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| 作者单位： | 山东省特种设备检验研究院,山东,济南,250013 |
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| 摘 要： | 采用金相分析显微镜及扫描电镜显微分析、力学性能试验、化学成分分析等方法对试压过程中的Q235B螺旋缝直埋焊管的爆管脆断原因进行了分析.认为发生爆管的主要原因是管线含碳量偏高及夹杂物的存在降低了钢管的强度,在"水击"的作用下发生断裂.
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| 关 键 词： | Q235B 螺旋焊管 断裂分析 夹杂物 水击 |
Fracture Analysis of Q235B Spiral Welded Pipe |
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| YAO Xiao-jing,ZHANG Feng,XI Guang-feng,WANG Pei-dong.Fracture Analysis of Q235B Spiral Welded Pipe[J].Pipeline Technique and Equipment,2011(2):31-32. |
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| Authors: | YAO Xiao-jing ZHANG Feng XI Guang-feng WANG Pei-dong |
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| Institution: | YAO Xiao-jing,ZHANG Feng,XI Guang-feng,WANG Pei-dong(Shandong Inspection and Research Institute of Special Equipment,Jinan 250013,China) |
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| Abstract: | This paper analyses the reason of the fracture of Q235B spiral welded pipe under the metallographinc microscope and the scanning electronic microscope and through mechanical property experiments and chemical analyses etc.It is considered that the occurrence of fractures is mainly caused by the high content of carbon and the presence of inclusions under the water hammer. |
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| Keywords: | Q235B |
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