Cold rolling mill rolling condition calculation method, cold rolling mill rolling condition calculation device, cold rolling method, cold rolling mill, and steel sheet manufacturing method

摘要

In the method for calculating the rolling conditions of the cold rolling mill according to the present invention, the first multidimensional data generated based on the non-stationary rolling performance data among the past rolling results of rolling the rolled material by the cold rolling mill is used as an explanatory variable. Then, the second multidimensional data generated based on the non-steady rolling actual data of the rolling target material is input to the prediction model learned by using the steady rolling actual data and the rolling constraint condition data at the time of steady rolling as the objective variables. This includes an estimation step for estimating the rolling constraint conditions for the target steady rolling conditions of the material to be rolled, and a change step for changing the target steady rolling conditions so that the estimated rolling constraint conditions satisfy the predetermined conditions.