| 27SiMn无缝钢管开裂原因分析与对策 |
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| 引用本文： | 刘宝国,何建中,井溢农.27SiMn无缝钢管开裂原因分析与对策[J].包钢科技,2012,38(2):21-23. |
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| 作者姓名： | 刘宝国 何建中 井溢农 |
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| 作者单位： | 内蒙古包钢钢联股份有限公司无缝钢管厂,内蒙古包头,014010;内蒙古包钢钢联股份有限公司技术中心,内蒙古包头,014010 |
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| 摘 要： | 27SiMn无缝钢管在轧制过程中,管体出现开裂,对管体的化学成分进行了检验,利用金相显微镜和扫描电镜对其进行微观分析,分析表明,非金属夹杂物是引起裂纹的主要原因,并对夹杂物做定性分析,找出其来源,并提出相应的改进措施。
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| 关 键 词： | 无缝钢管 应力 裂纹 非金属夹杂物 |
Cause Analysis and Countermeasures for Cracking of 27SiMn Seamless Steel Tubes |
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| LIU Bao-guo
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HE Jian-zhong
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JING Yi-nong.Cause Analysis and Countermeasures for Cracking of 27SiMn Seamless Steel Tubes[J].Science & Technology of Baotou Steel(Group) Corporation,2012,38(2):21-23. |
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| Authors: | LIU Bao-guo HE Jian-zhong JING Yi-nong |
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| Affiliation: | 1.Seamless Tube Plant of Steel Union Co.Ltd.of Baotou Steel(Group)Corp.,Baotou 014010,Nei Monggol,China; 2.Technical Center of Steel Union Co.Ltd.of Baotou Steel(Group)Corp.,Baotou 014010,Nei Monggol,China) |
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| Abstract: | In the process of rolling 27SiMn seamless steel tubes,there are cracks on the tubes.The chemical compositions of the tubes are tested as well as the micro analysis is made with metallurgical microscope and scanning electron microscope.The results show that the non-metallic inclusions are the main causes for cracks.In the paper,the qualitative analysis of the inclusions is made and the sources are found out as well as the appropriate measures are proposed. |
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| Keywords: | seamless steel tubes stress cracks non-metallic inclusions |
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