Tension fluctuation prediction method for changing the running plate thickness, running plate thickness changing method, steel strip manufacturing method, tension fluctuation prediction model generation method for running plate thickness change, and tension fluctuation predicting device for running plate thickness change

摘要

PROBLEM TO BE SOLVED: To roll a trailing material through an intermediate step from rolling of a leading material in a two-step inter-running plate thickness change applied when a plate thickness difference or a deformation resistance difference between a leading material and a trailing material is large. To provide a tension fluctuation prediction method for changing the running plate thickness that can accurately predict the tension fluctuation at the time of transition. SOLUTION: This is a method for predicting tension fluctuation in changing a running plate thickness according to the present invention, and one or more parameters selected from the rolling operation parameters of the preceding material and one or more parameters selected from the rolling operation parameters of the trailing material. , And one or more parameters selected from the rolling operation parameters of the intermediate step are used as input data, and tension fluctuation information in the process of transition from rolling of the preceding material to rolling of the trailing material is used as output data, which was learned by machine learning. It is characterized by including a step of predicting the amount of tension fluctuation in the process of transition from rolling of the preceding material to rolling of the trailing material by using a tension fluctuation prediction model. [Selection diagram] FIG. 9