Thermal Contour Model of Work Rolls in Hot Wide Strip Mills
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摘要: 實現工作輥熱輥形的在線預報是板形控制的難題之一.采用一維有限差分方法建立了工作輥熱輥形在線計算模型,并利用該模型計算了熱軋過程中和下機后任意時刻工作輥溫度場及其熱輥形.仿真和在線應用結果表明,此在線模型計算速度快,精度高,能滿足板形在線過程控制的需要.Abstract: The thermal contour on-line prediction of work rolls is one of the difficult problems in strip shape control. A theoretical model was built to calculate the on-line work roll's thermal contour by using the one-dimension finite difference method and used to calculate the temperature field and thermal contour at any tune in rolling and after rolling. The result indicates that the computation of this model is rapid and accurate in simulation and online application. This model suits to be used in the process of strip shape on-line control.
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Key words:
- hot rolling /
- finite difference /
- work roll /
- thermal contour /
- strip shape
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