Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Measurements of Magnetic Flux Densities and Joule's Heats Induced in the Laboratory-scale High Frequency Induction Furnace
Shoji TANIGUCHIMinoru WATANABEAtsushi KIKUCHITeiriki TADAKI
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1980 Volume 66 Issue 3 Pages 363-371

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Abstract

Experimental studies have been carried out in order to examine the applicability of Lavers' model to the electromagnetic fields in the laboratory-scale induction furnace with high frequency.
The furnace used is made of 14 turn 0.054 m-radius and 0.14 m-height induction coil and power supply with frequency of 9.09 kHz or 480 kHz.
Magnetic flux densities have been measured under the conditions without load, with a long copper cylinder load, and with a mercury pool load, respectively. These values have been well consistent with Lavers' model.
Joule's heats have been measured for the following metals : copper, zinc, tin, lead and mercury. These values have been well consistent with the model in the range of r1/δ from 4 to 100, where r1 is the radius of load and δ is the skin depth.
From these results it is possible to apply Lavers' model to the electromagnetic fields in molten iron in a laboratory-scale induction furnace.

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© The Iron and Steel Institute of Japan
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