Numerical simulation for the study of electromagnetic field characteristics in the secondary cooling zone of arc-shaped slabs
DOI:
https://doi.org/10.17159/Abstract
The magnetic field characteristics of the electromagnetic stirring in the secondary cooling zone of the extra-thick slab continuous casting slab are numerically determined using Maxwell's equations. It mainly examines the distribution of magnetic induction intensity and electromagnetic force, as well as the process parameter altering rule to magnetic field. The direction of the electromagnetic force is the same when the electromagnetic stirrers at 30° and 60° of the arc-shaped slab are powered in the same way; otherwise, the direction of the electromagnetic force is opposite. The magnetic induction at the center of the B-B section, as well as the current, frequency, and fitting formulas, are as follows: B=0.075I-0.3mT and B=-1.75f+22mT. The electromagnetic force and current fitting formula at the central point of the B-B section is：F=9I-950N/m3, and the fitting formula of electromagnetic force and frequency at the center point of B-B section is divided into two sections. The form of the first parabola is：F=-21(f-4.3)2+970N/m3, and the second segment is a linear decreasing curve in the form of F=-1.65f+51.5N/m3.
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