電磁気力による溶融金属の微粒化

概要

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A new atomization process is proposed in which molten metal is atomized by electromagnetic energy instead of kinetic one produced by fluid impingement of 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.
社団法人日本鉄鋼協会の論文
1989-08-01