Patent ID: 7195054
Filing Date: 2007-03-27
Classification: B22D

Abstract:
1. Method of sealing a gap between the end face of a casting roll ( 1 , 2 ) and a side seal ( 3 ) of a roll strip-casting machine, comprising the steps of: inducing a rotational electric field in a region of the gap ( 10 ) in such a way that a local gradient field ( 13 ) is produced, whereby eddy currents generated in the molten metal to be cast prevent the molten metal from penetrating the gap ( 10 ) or force the molten metal out of the gap ( 10 ), such that a “field guide” ( 20 ) is built into an end face ( 7 ) of the roll, wherein the roll ( 1 , 2 ) has a basis material ( 5 ), and a wear-resistant surface layer ( 6 ); positioning the “field guide” ( 20 ) relative to the surface of the roll in such a way that the basis material ( 5 ) and the wear-resistant layer ( 6 ) extend to the end face ( 7 ) of the roll; installing copper plates ( 22 , 23 ) inside the iron body ( 16 ) of a magnetic element for influencing the gradient formation of the rotational electric field, the copper plates ( 22 , 23 ) simultaneously serving as cooling elements.