Patent ID: 7448431
Filing Date: 2008-11-11
Classification: B22D

Abstract:
1. A continuous steel casting method comprising feeding molten steel into a mold, whereby solidification of the molten steel proceeds, and controlling a flow of unsolidified molten steel in the mold by applying a vibrating magnetic field which is generated with an arrangement of at least three electromagnets disposed along a longitudinal direction of the mold, peak positions of the vibrating magnetic field are shifted along the longitudinal direction of the mold, wherein the longitudinal direction of the mold is a direction along the wide face of the mold, wherein the vibrating magnetic field in which peak positions thereof are shifted along the longitudinal direction of the mold is generated by a vibrating magnetic field generator which comprises at least three magnetic poles including two adjacent pairs of magnetic poles where directions of electromagnetic forces of the adjacent pairs of magnetic poles are opposite to each other, wherein the total of each opposite electromagnetic forces in the at least three magnetic poles are not equal.