Abstract
The article describes new approaches to calculating the thermal regimes of induction crucible furnaces, as well as methods for calculating them using converted thermal circuits. The principles of constructing thermal models of structural parts and molten metal of induction crucible furnaces based on converted ETS and their use for the development of optimal systems for automatic control of the metal melting process are considered. The methodology for the development of ETS and the compilation of heat balance equations for induction crucible furnaces with a capacity of up to 1000 kg is presented..
Highlights
To study the heating processes of the main structural parts and the molten metal of the ITP using the ETS method, we select the number of thermal bodies, thermal conductivity between them and heat transfer to the environment
Taking into account the above conditions, an ITP with a capacity of up to 1000 kg with an open lid will compose an ETS with four thermal bodies: 1 - molten metal, 2 inductor, 3 - lining and 4 - case with internal heat sources (Fig. 1, a) [1]. These thermal bodies are interconnected by the corresponding thermal conductivities, and the thermal bodies, the metal being melted and the body, have heat transfer to the environment (Fig. 1, b), and each thermal body has, respectively, heat sources
With the help of this calculation method, it is possible to calculate the unsteady heating process occurring in the molten metal and the main structural parts of the ITP and determine the temperature rise in the parts of the furnace of interest
Summary
To study the heating processes of the main structural parts and the molten metal of the ITP using the ETS method, we select the number of thermal bodies, thermal conductivity between them and heat transfer to the environment. We consider that the values of thermal conductivity and heat transfer do not depend on temperature; 3.
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