Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Atomization of Molten Metal by Use of Electromagnetic Force
Kensuke SASSANaohito AGATAToshiyuki KOZUKAShigeo ASAI
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1989 Volume 75 Issue 8 Pages 1294-1299

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Abstract

A new atomization process is proposed in which molten metal is atomized by electromagnetic energy instead of kinetic one produced by fluid impingement or disk rotation in the conventional atomization processes. This electromagnetic atomization process was tested to clarify characteristics of atomizing molten metal. It was found that a crucial operation factor is a contacting condition of molten metal with an electrode. In order to control the condition, a delay time controller unit was developed and incorporated in the electromagnetic atomization process. It is noticed that this controller works well to produce the better uniform size particles than those of conventional atomization processes.
A linear relation between the impulse which is defined as the product of the imposed electromagnetic force and the period of current passing, and the momentum which is defined as the product of the mass and the velocity of splashed particle, is found by use of experimental data and this fact is explained from a theoretical view point.

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© The Iron and Steel Institute of Japan
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