Inductively heatable refractory member, inductive coil employabl

Details Inductively heatable refractory member, inductive coil employabl Inductively heatable refractory member, inductive coil employabl

1989-12-14

1991-10-01

Kastler, S.

Dispensing

Molten metal dispensing

With heating or cooling

222606, 219 1079, B22D 4160

Patent

active

050525972

ABSTRACT:
A refractory member has therethrough a flow channel for the passage of molten metal. At least an inner wall portion of the refractory member defining the flow channel is at least partially formed of a material that at least partially includes a ceramic material having the properties of being capable of being heated inductively and to being electrically conductive at a temperature at least equal to the liquidus temperature of the molten metal. A primary induction coil, preferably formed of an electrically conductive ceramic material, surrounds the flow channel and inductively heats the material of the inner wall portion to prevent freezing of molten metal within the flow channel and the formation of deposits therein.

REFERENCES:
patent: 2673228 (1954-03-01), Kistler
patent: 2779073 (1957-01-01), Osborn, Jr.
patent: 3435992 (1969-04-01), Tisdale et al.
patent: 4359625 (1982-11-01), Okada et al.
patent: 4475721 (1984-10-01), Pamart
patent: 4946082 (1990-08-01), Brun et al.

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