Rolling line mathematical model calculation device and rolled material temperature control device

摘要

PROBLEM TO BE SOLVED: To provide a mathematical model calculation device for a rolling line capable of accurately calculating temperature model.SOLUTION: A mathematical model calculation device comprises a mathematical model calculation section calculating a mathematical model with a cooling spray flow rate of water injection facilities provided between a rolling mill and a winder of a hot rolling line as control input, with disturbance including a rotational speed of the rolling mill, a pressure according to a shape of a rolled material between the rolling mill and the water injection facilities, and a rolling mill outlet side temperature of the rolled material between the rolling mill and the water injection facilities as disturbance input, and with a winding temperature of the rolled material between the water injection facilities and the winder as output based on measured value history of the hot rolling line.SELECTED DRAWING: Figure 3