2016
DOI: 10.1109/tasc.2016.2539214
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In-Depth Induction Heating of Large Steel Slabs by Means of a DC Saturating Field Produced by Superconducting Coils

Abstract: The feasibility of an innovative in-depth AC induction heating method for large steel slabs is investigated. Beside the AC field, which induces the heating currents, a large DC magnetic field is also applied, which brings the material to saturation. Due to the saturation, the permeability is reduced by orders of magnitude and the penetration depth is drastically increased, thus enabling much faster and more uniform heating. In order to produce the field needed for the saturation of common steel workpieces, los… Show more

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Cited by 7 publications
(2 citation statements)
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“…In this study, the induction simulation profile is based on the slab heating, in which the purpose would be to keep the difference between the surface and core temperatures small. [ 45 ] The heating time can be even shorter by accelerating the heating of the slab's surface, while the temperature difference to the core increases [ 45,46 ] and thus, the difference between oxide scales from induction and combustion heating could increase even more.…”
Section: Discussionmentioning
confidence: 99%
“…In this study, the induction simulation profile is based on the slab heating, in which the purpose would be to keep the difference between the surface and core temperatures small. [ 45 ] The heating time can be even shorter by accelerating the heating of the slab's surface, while the temperature difference to the core increases [ 45,46 ] and thus, the difference between oxide scales from induction and combustion heating could increase even more.…”
Section: Discussionmentioning
confidence: 99%
“…Material properties used for numerical simulation in COMSOL Multiphysics environment are listed in Table 4. Relative magnetic permeability of steel was chosen μ = 1 since steel becomes nonmagnetic above Curie temperature (770 ℃) [2,4,7,9]. Fine free tetrahedral mesh was applied for the work piece because of proper calculation of electromagnetic phenomena (Fig.…”
Section: Methodsmentioning
confidence: 99%