Arrangement optimization of electro-slag remelting furnace based on finite element analysis of electromagnetic field

作者：Liu Fu Bin^*; Zang Xi Min; Jiang Zhou Hua; Geng Xin

来源：Journal of Northeastern University, 2009, 30(2): 229-232.

• ANSYS
• Arrangement optimization
• Connecting wires
• Effect of magnetic fields
• Electro-slag furnace
• Electrode surfaces
• Fea softwares
• Finite-element analysis
• Furnace designs
• High currents
• Induced eddy currents
• Loss of energies
• Magnetic inductions
• Minimum values
• Non-uniform distributions
• Numerical simulations
• Return currents
• Spatial distributions

Introducing the FEA software ANSYS in numerical simulation, the spatial distribution of magnetic field generated around a high-current conductor during electro-slag remelting was investigated. The calculated results showed that there are differences between maximum and minimum values of magnetic induction in a nonuniform distribution around electrode surface when return current happens, i.e. 35.22%, 13.26% and 5.8% for single, double and four connecting wire, respectively. Such differences result in uneven eddy current density on electrode surface, which will affect the electrode remelting rate. Taking the effect of magnetic field on remelting process into consideration, the symmetrically coaxial arrangement of the furnace is introduced to greatly decrease the disadvantages resulting from induced eddy current. To reduce extra loss of energy, erase sperromagnetism, and prevent spot-like segregation and current's stirring action, the coaxial arrangement of ESR furnace will be the trend of ESR furnace design.

• 出版日期2009
• 单位东北大学