东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (2): 229-232.DOI: -

• 论著 • 上一篇    下一篇

基于FTA的连铸方坯内部裂纹分析及优化控制

刘文红;谢植;陈小慧;贾光霖;   

  1. 东北大学信息科学与工程学院;东北大学信息科学与工程学院;东北大学信息科学与工程学院;东北大学材料与冶金学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-02-15 发布日期:2013-06-22
  • 通讯作者: Liu, W.-H.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2006AA040309)

FTA-based analysis of internal cracks in continuous casting billet and optimum control

Liu, Wen-Hong (1); Xie, Zhi (1); Chen, Xiao-Hui (1); Jia, Guang-Lin (2)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China; (2) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-02-15 Published:2013-06-22
  • Contact: Liu, W.-H.
  • About author:-
  • Supported by:
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摘要： 针对连铸方坯的内部裂纹质量缺陷,提出一种基于故障树分析的质量分析和优化控制新方法.通过对各种内部裂纹形成机理的研究,得到各机理间的相互联系和裂纹形成的根本原因;根据故障树分析法的特点,建立内部裂纹的故障树分析模型,并采用VC++6.0开发出可视化故障树分析系统,实现内部裂纹故障树的自动建树及分析.将某钢厂Q235钢的生产数据连接到分析系统中,进行定性分析和定量分析,分析结果与现场统计结果基本一致,在此基础上提出改善铸坯质量的优化控制方案.

关键词: 连铸, 内部裂纹, 故障树分析(FTA), 定性分析, 定量分析

Abstract: To improve the internal quality of continuous casting billet, a new approach to quality analysis and optimum control is proposed on FTA Basis. The interrelation between different hypotheses of the formation mechanism of internal cracks is studied to find out the root causes. According to the features of FTA and expertise, an FTA model of internal cracks is developed, then the software VC++ 6.0 is introduced to form the visual-FTA system, which is available to generate and analyze the fault tree automatically. Applying the analysis system to the steel Q235 supplied by a steel-maker, the qualitative/quantitative results basically conform with the on-line statistical ones, then an optimum control scheme is proposed to improve the billet quality.

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