Abstract
In the current conditions of the global economy and the established relations with other countries (sanctions and restrictions on the supply of raw materials, equipment, spare parts and licenses for software products), the need to develop new types of rolling rolls has arisen. The need to create a software product that allows predicting the course of technological processes and selecting the least expensive heat treatment modes at the design stage of technological conditions arose due to energy- and resource-intensive production. Modeling of the thermal stress state [1, 2] is impossible without high-quality prediction of the rolls temperature field during its heat treatment [3]. For the successful application of existing methods of mathematical analysis of the thermal state of the study object, it is necessary to determine correctly the temperature dependencies of the uniqueness conditions (thermal conductivity and heat capacity) in the course of solving the problem of thermal conductivity using existing numerical methods. At the same time, for high-quality prediction of the temperature fields of the rolling roll, it is necessary to study the thermophysical characteristics both in the initial (cast) state and after heat treatment of the material of the cast billet. These studies will help to increase the accuracy of forecasting technological processes in production and expand the database of characteristics of 170 ХНМ steel.
Keywords:
rolling roll, mathematical analysis, thermal conductivity, heat capacity, stress state, temperature fields.