The influence of the shape of the cross-sectional profile of hot-rolled steel on the distribution of the elongations over the width of the cold-rolled strips

The cross-sectional shape of the hot rolled steel has a significant effect on the flatness of the cold rolled strips. Therefore, the task of the of cold rolling technology control, depending on the digital quality criterion for hot rolled steel, is relevant. The article presents advanced methods for calculating the parameters of the cross-sectional profile by constructing a mathematical model to recognize its actual shape (contour) and reveals the patterns of influence of this criterion on the distribution of elongations over the width of cold-rolled strips.