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介绍了一种负荷分配的新方法:传统经验表中使用相对压下率作为初始负荷分配数据时,计算的末机架出口厚度与成品厚度存在差异,采用对数补偿法进行修正,提高初次负荷分配精度。为了保证人工修改变形量时计算过程平稳,采用平滑方法修正人工输入变形量;考虑轧制力极限和轧制力-功率平衡条件对压下率的修改,实现动态调整,满足在线控制;通过对变形量的回归计算,将第4机架出口厚度的偏差量分配给了2、3、4机架,以保证轧机第5机架出口厚度波动最小,实现稳定轧制。该负荷分配新方法能够满足实时在线控制要求并且保证产品厚度精度。
A new method of load distribution is introduced. When the relative reduction rate is used as the initial load distribution data in the traditional experience table, there is a difference between the calculated final rack outlet thickness and the finished thickness, and the logarithmic compensation method is used to improve the initial load Distribution accuracy. In order to ensure the stability of the calculation process when the deformation is manually modified, the method of smoothing is used to correct the deformation of the manual input. The rolling force limit and the rolling force-power balance conditions are taken into account to modify the rolling reduction rate and achieve dynamic adjustment to satisfy the online control. Deformation of the regression calculation, the fourth rack thickness deviation of the export assigned to the 2,3,4 rack to ensure that the rolling mill thickness of the fifth rack outlet fluctuations to achieve stable rolling. This new method of load distribution meets real-time online control requirements and guarantees product thickness accuracy.