Experiment and analysis of levitation-melting method of induction furnace

Author

Enokizono, M. ; Todaka, T. ; Yokoji, K. ; Matsumoto, I. ; Kubo, K. ; Wada, Y.

Author_Institution

Fac. of Eng., Oita Univ., Japan

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

4205

Lastpage

4207

Abstract

This paper presents basic data on the effect of a high-frequency induction coil in the levitation-melting method. The buoyant force is measured with a digital balance under the constant 30 kW output, and the effect of the coil´s position on the buoyancy is investigated experimentally. In addition, the flux distribution in the actual coil which has asymmetric shape, is calculated with the three-dimensional boundary element method. The rotating motion of a levitating metal caused by an asymmetric flux distribution is discussed. In the paper we show that controlling the movement of ingot may be a solution to the problem of uniform heating in this system

Keywords

boundary-elements methods; coils; electric furnaces; induction heating; magnetic levitation; melting; metallurgical industries; 30 kW; asymmetric flux distribution; asymmetric shape coil; buoyancy; buoyant force; digital balance measurements; flux distribution; high-frequency induction coil; induction furnace; levitating metal; levitation-melting method; rotating motion; three-dimensional boundary element method; Coils; Copper; Electromagnetic forces; Force measurement; Frequency; Furnaces; Heating; Position measurement; Shape; Temperature control;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.489927

Filename

489927