Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1994-03-31
1996-05-07
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164428, 164480, 164503, B22D 1106, B22D 2702
Patent
active
055136923
ABSTRACT:
An electromagnetic confining apparatus prevents the escape of molten metal through the open end of a vertically extending gap between two horizontally extending members, such as two counter-rotating rolls of a continuous strip caster. The molten metal is located between the two members. The apparatus includes a vertically disposed coil through which flows a time-varying electric current to generate a first horizontal magnetic field adjacent the open end of the gap. A time-varying conduction current is directed through the pool of molten metal adjacent the open end of the gap, in a vertical direction opposite that of the current flow in the adjacent portion of the coil. The flow of conduction current through the molten metal pool generates a second horizontal magnetic field adjacent the open end of the gap and which augments the first horizontal magnetic field to provide a repulsive body pressure which urges the pool of molten metal inwardly away from the open end of the gap.
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Kolesnichenko, et al., "Electromagnetic Retention of Steel Melt on the Faces of the Roll Mould" Proceedings of The Sixth International Iron and Steel Congress, vol. 4, 1990, Nagoya, ISIJ, pp. 446-453.
U.S. application Ser. No. 08/236,366, filed Apr. 29, 1994, by Kolesnichenko .
Inland Steel Company
Lin Kuang Y.
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