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Model Algorithm Research on Cooling Path Control of Hot-rolled Dual-phase Steel

机译:热轧双相钢冷却路径控制的模型算法研究

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摘要

With the development of advanced high strength steel,especially for dual-phase steel,the model algorithm for cooling control after hot rolling has to achieve the targeted coiling temperature control at the location of downcoiler whilst maintaining the cooling path control based on strip microstructure along the whole cooling section.A cooling path control algorithm was proposed for the laminar cooling process as a solution to practical difficulties associated with the realization of the thermal cycle during cooling process.The heat conduction equation coupled with the carbon diffusion equation with moving boundary was employed in order to simulate temperature change and phase transfor-mation kinetics,making it possible to observe the temperature field and the phase fraction of the strip in real time. On this basis,an optimization method was utilized for valve settings to ensure the minimum deviations between the predicted and actual cooling path of the strip,taking into account the constraints of the cooling equipment′s specific capacity,cooling line length,etc.Results showed that the model algorithm was able to achieve the online cooling path control for dual-phase steel.
机译:随着先进高强度钢的发展,特别是双相钢的发展,热轧后冷却控制的模型算法必须在下卷机位置实现目标卷取温度控制,同时保持沿带钢显微组织的冷却路径控制。提出了一种层流冷却过程的冷却路径控制算法,以解决与冷却过程中实现热循环有关的实际困难。为了模拟温度变化和相变动力学,可以实时观察带材的温度场和相分数。在此基础上,考虑到冷却设备的比容量,冷却线长度等约束条件,采用优化方法对阀门进行设置,以确保带材的预测冷却路径与实际冷却路径之间的最小偏差。该模型算法能够实现双相钢在线冷却路径控制。

著录项

  • 来源
    《钢铁研究学报(英文版)》 |2016年第10期|1028-1034|共7页
  • 作者单位

    School of Material Science and Engineering,Northeastern University,Shenyang 110004,Liaoning,China;

    New Metallurgy Hi-tech Group Co.,Ltd.,Beijing 100081,China;

    New Metallurgy Hi-tech Group Co.,Ltd.,Beijing 100081,China;

    School of Material Science and Engineering,Northeastern University,Shenyang 110004,Liaoning,China;

    New Metallurgy Hi-tech Group Co.,Ltd.,Beijing 100081,China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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  • 入库时间 2024-01-26 21:27:52
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