Performance Improvements of an In-Mold Electromagnetic Stirrer with Minimum Hardware Adjustments

Abstract

During the continuous casting process of a steel mill, guided electromagnetic forces that are generated from the inmold electromagnetic stirrer (M-EMS) systems are commonly applied to reduce the impurities of the molten metals. Due to their high installation costs and limited operational spaces, modifications on the existing M-EMS systems to improve their overall performance are restricted. Verified by detailed threedimensional (3-D) finite element analyses (FEA) and experimental tests, this paper is aimed to provide the feasible electrical and mechanical adjustment schemes, such that the electromagnetic fields will flow through the designed paths and the desired stirring forces of the M-EMS can be apparently enhanced. From such encouraging results, it is believed that a valuable design and improvement guidance can be supplied to the related metal industries.

Analytical modelling of electromagnetic field and performance investigation of a rectangular linear electromagnetic stirrer

“…Coupled numerical simulation (Wang et al , 2015) was done to investigate the field and flow profile for the round billet. Further investigation has been carried out for detailed numerical analysis and performance assessment of linear induction motor (LIM)-based stirrer under different operating conditions (Liu, 2008,2010). In these studies, some modifications in the form of guide ways were adopted for the stirrer design to achieve improved performance.…”