Abstract
The preparation of complex-component aluminum alloys using lead requires intensive volumetric mixing of the aluminum alloy. Currently, the preparation of aluminum-lead alloys is carried out in induction crucible furnaces. However, lead contaminates the lining of the induction crucible furnace, which requires a major overhaul to replace it when switching to the preparation of other aluminum alloys. At present, it is more progressive to use a complex for electromagnetic stirring of an aluminum alloy in a transport bucket. The aim of the work is to create a numerical mathematical model using ANSYS to study the parameters of the complex for electromagnetic stirring of the aluminum melt in the transport ladle. The mathematical model makes it possible to comprehensively study the influence of electromagnetic parameters of the inductor on the speed, trajectory of movement, the distribution of alloying components and the temperature of the aluminum melt in the transport ladle. When developing a mathematical model, the basic software package ANSYS was used to solve the electromagnetic problem and the ANSYS CFX package was used to solve hydrodynamic and thermal problems. A numerical mathematical model of the system "electromagnetic inductor - transport ladle - aluminum melt" has been developed to analyze the efficiency of the complex for electromagnetic stirring of the aluminum melt in order to obtain complex-component aluminum alloys based on lead and magnesium. Complex solutions are presented including electromagnetic, hydrodynamic and thermodynamic problems as applied to mixing and distribution of lead and magnesium in a high-temperature aluminum melt. The comparative analysis of the results of mathematical modeling and experimental research was carried out to achieve the maximum efficiency of the distribution of lead or magnesium using the complex for electromagnetic stirring of an aluminum melt in the transport ladle.The mathematical model implemented in the ANSYS software package, including joint solutions of electromagnetic, hydrodynamic and thermal problems, can be used in the development of complexes for electromagnetic stirring of the aluminum melt in the transport ladle for the preparation of complex-component aluminum alloys based on lead. The results of mathematical modeling and experimental studies of electromagnetic stirring of the aluminum-lead melt in the transport ladle are recommended to be used at aluminum and metallurgical plants in the preparation of complex-component alloys.
Keywords
Complex, electromagnetic stirring, aluminum melt, lead alloy, electromagnetic inductor, transport ladle, three-dimensional numerical mathematical model, electromagnetic problem, hydrodynamic problem, thermodynamic problem.
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