Finished side temperature control method for steel sheet, finished side temperature control device for steel sheet, and manufacturing method for steel sheet

摘要

PROBLEM TO BE SOLVED: To provide a finishing side temperature control method and a finishing side temperature control device of a steel sheet capable of accurately controlling the finishing side temperature of a steel sheet to a target temperature without requiring complicated adjustment. SOLUTION: The method for controlling the temperature on the finishing side of a steel plate according to the present invention is to continuously roll a steel plate by using a plurality of rolling mills arranged in the rolling direction of the steel plate. This is a method for controlling the temperature on the finished side of a steel plate that controls the temperature. By inputting the rolling specifications of the steel plate to be rolled into the finish-side temperature prediction model with the output variable, the predicted value of the temperature of the steel plate to be rolled is calculated and provided between the rolling mills. The rolling specifications include at least information directly or indirectly related to the temperature of the cooling water, including a step of controlling the discharge patterns of multiple cooling facilities that discharge the cooling water based on predicted values. .. [Selection diagram] Fig. 4