Use of the Processing Arrays Theory of Experimental Data for the Analysis of the Technological Scheme in the Rolled Metal Production – Controlled Rolling

Formulation of the problem. Establishing a quantitative relationship between the temperature parameters of the traditional controlled rolling scheme and the mechanical properties of thick-rolled metal is an urgent problem. It can significantly affect the production of domestic rolled products with increased operational properties due to the formation of a given structural state of the finished thin-rolled product by adjusting the temperature-deformation parameters of rolling in the cleaning cage. The article aims to build mathematical models of the relationship between the parameters of the controlled rolling technology at the final rolling stage and the main mechanical properties of rolled metal. Conclusion. Mathematical models of the relationship between temperature parameters of controlled rolling and basic mechanical properties of rolled metal from low-carbon low-alloy steel 10Mn2VNb. At the same time, it is shown that the temperature increase at the beginning of the finishing process rolling will lead to an increase in the level of strength characteristics. The analysis of the results of the conducted research showed the perspective of correcting the formation of structural and substructural components based on reduction to a minimum of the cooling period on the bypass roller conveyor and further continuous deformation in the intercritical temperature interval. Simultaneously, lowering the temperature of the end of hot rolling to the lower limit of the intercritical interval will allow further improvement and stabilize the set of mechanical characteristics of rolled steel for building structures.