波数ベクトルに平行な直流磁場の印加下での溶融金属波動の減衰挙動

概要

論文の詳細を見る
Suppression of wave motion by imposing stationary magnetic field, is attractive since magnetic field can act on molten metal without any contact with contamination source and stationary magnetic field requires smaller investment and running costs than alternating magnetic field does. This technique is applicable to some processes such as a twin roll, a single roll, a conventional continuous casting and an electromagnetic casting, in which the surface wave molten metal leads to instabilities of the operation and surface defects. In this work, basic equations describing wave motion under stationary magnetic field imposed parallelly to the wave vector are derived taking into account the three-dimensional velocity distribution. A dispersion relation under the condition suffering the stationary magnetic field is derived so as to get a damping coefficient of wave motion. And the results of this theoretical analysis are valified by experimental works measuring the damping coefficient.
社団法人日本鉄鋼協会の論文
1990-10-01