刘靖, 付晨光, 朱景清, 周彩红, 陈卫清. 连铸圆管坯轧管内折成因分析[J]. 工程科学学报, 2002, 24(5): 533-536. DOI: 10.13374/j.issn1001-053x.2002.05.013
引用本文: 刘靖, 付晨光, 朱景清, 周彩红, 陈卫清. 连铸圆管坯轧管内折成因分析[J]. 工程科学学报, 2002, 24(5): 533-536. DOI: 10.13374/j.issn1001-053x.2002.05.013
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LIU Jing, FU Chenguang, ZHU Jingqing, ZHOU Caihong, CHEN Weiqing. Internal Surface Folding Analysis of Continuous Casting Tube Rounds[J]. Chinese Journal of Engineering, 2002, 24(5): 533-536. DOI: 10.13374/j.issn1001-053x.2002.05.013
Citation: LIU Jing, FU Chenguang, ZHU Jingqing, ZHOU Caihong, CHEN Weiqing. Internal Surface Folding Analysis of Continuous Casting Tube Rounds[J]. Chinese Journal of Engineering, 2002, 24(5): 533-536. DOI: 10.13374/j.issn1001-053x.2002.05.013
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连铸圆管坯轧管内折成因分析

Internal Surface Folding Analysis of Continuous Casting Tube Rounds

    摘要
  • 摘要: 针对包钢连铸圆管坯热轧无缝钢管产生大量内折缺陷这一问题,主要从铸坯质量入手,运用逐步回归方法,分析了形成内折的主要原因.研究结果表明,钢水精炼成分Mn/S过低,浇注过热度△t以及与其匹配的拉坯速度ν过高是造成铸坯质量的主要原因,为提高产品质量提供了参考依据.

     

    Abstract: During the hot rolling of seamless steel tubes, internal surface folding (ISF) is frequently formed in Baotou Iron & Steel Co. The main factors, which caused the ISF, are analyzed using the method of step regression. Results show that the lower value of Mn/S, the higher casting overheaded level △t and pulling velocity v are the main reasons caused ISF.

     

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