东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (7): 966-969.DOI: -

• 论著 • 上一篇    下一篇

37Mn5连铸圆坯凝固过程数学模拟

张志祥;闵义;姜茂发;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-07-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家科技支撑计划项目(07-05-27)

Mathematical simulation of continuous casting process of round billet solidification of 37Mn5 steel

Zhang, Zhi-Xiang (1); Min, Yi (1); Jiang, Mao-Fa (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-07-15 Published:2013-06-20
  • Contact: Min, Y.
  • About author:-
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摘要： 为控制油井管用连铸圆坯质量,基于薄片移动法建立了连铸圆坯凝固传热数学模型,并应用ProCAST软件对37Mn5钢Φ150mm连铸圆坯凝固过程进行了数学模拟,铸坯表面温度模型预测结果与工业试验测温结果相一致.模拟结果表明,在过热度为(20±5)℃,拉速为2.5m.min-1条件下,可以控制结晶器出口坯壳厚度、铸坯液芯长度和铸坯表面温度在合适的范围内,有利于防止铸坯表面裂纹和内部裂纹等缺陷的产生和保证浇铸安全,并实现较高的生产率.

关键词: 连铸, 37Mn5钢, 圆坯, 凝固, 数学模拟

Abstract: To control the quality of continuous casting round billets used for oil well pipes, a mathematical model based on slice moving method was developed for the solidification and heat transfer process of the round billets. Then, a mathematical simulation was done using the ProCAST software for the solidification process of the φ150 mm round billets of 37Mn5 steel. As a result, the predicted billet surface temperature is in accordance with testing results of industrial experiments. The simulation results showed that, on the conditions that the superheat is (20 ± 5)°C, with a drawing velocity 2.5 m · min-1, the billet shell thickness at mold exit, the liquid core length, and the surface temperature of strand can all be controlled in appropriate range to prevent the billets from surface/internal cracks and ensure the casting safety with productivity improved.

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