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板凸度是热轧带钢产品质量的重要指标之一,板凸度闭环控制能够有效地保证板凸度精度。以弯辊力调节作为板凸度闭环控制的主要手段,以保证板形良好为前提,给出了板凸度闭环控制策略及弯辊力对板凸度传递系数的计算方法,建立了板凸度闭环控制模型。通过在宁波钢铁公司1780热连轧机组的工业应用,经过实际考核,带钢板凸度命中率达到96%以上,同时能够保持板形良好,取得了较好的控制效果。
Plate crown is one of the important indexes of hot rolled strip product quality. The plate crown closed loop control can effectively ensure the plate crown accuracy. With the bending force adjustment as the main means of the closed-loop control of the plate crown, in order to ensure a good shape as a prerequisite for the plate crown closed loop control strategy and bending force on the plate crown transfer coefficient calculation method, the plate convex Degree closed-loop control model. Through the industrial application of the 1780 hot rolling mill in Ningbo Iron & Steel Co., Ltd., after actual examination, the hit rate of the steel plate reaches more than 96%, meanwhile, the plate shape can be maintained well and a good control effect has been achieved.