Control system of temperature muffle furnace with adaptive temperature controller

The article presents a model of the adaptive temperature control system of the muffle electric resistance furnace (ERF) of the MP-2UM type, implemented in the MATLAB software environment. The basis of the system model is the electric furnace unit, developed using data obtained from the experiment conducted on the operating semi-industrial ERF type MP2-UM, as well as using linear models of objects and discrete active identification. The model includes input of the initial data of the heat treatment process and the processed metal using the temperature control unit of the furnace, calculation of the temperature of the heated metal using the readings of the effective temperature of the furnace determined by the thermocouple and the temperature of the pyrometer, simulation of graphs of the temperature change inside the furnace chamber and the graph of the change of the transmission coefficient of the PID controller settings, thereby solving the problem of optimal control of the thermal modes of the electric furnace according to the selected criteria and the problem of information support., allowing the technologist to more accurately carry out the heat treatment process, providing him with additional information that is not available for direct measurement. The work of the created model of the system is considered on the example of annealing a rod of technical titanium alloy grade VT0-1, widely used in the manufacture of various products that meet the stringent performance requirements. This model can also be used to train personnel of enterprises of the industrial metallurgical complex in order to improve their skills and level of professional training, as well as in the educational process for higher education institutions.