Method for heating a riser of molten refractory material

Details Method for heating a riser of molten refractory material Method for heating a riser of molten refractory material

1982-09-30

1984-07-17

Parrish, John

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 27, 264332, B22D 1116

Patent

active

044605242

ABSTRACT:
A method for heating a riser of a molten refractory material in which after a heat molten refractory material is poured into a mold, a melt of the molten refractory material at an upper portion of the mold is directly subjected to induction heating by conducting an electric current by application of an AC voltage at a frequency of from 50 to 1,000 KHz to an induction coil with at least 2 windings around the riser portion containing said melt without induction heating the upper portion of the mold.

REFERENCES:
patent: 1700288 (1929-01-01), Fulcher
patent: 2247318 (1941-06-01), Smythe
patent: 2277507 (1942-03-01), Benner
patent: 3233994 (1966-02-01), Penberthy
patent: 3533905 (1970-10-01), O'Meara
patent: 3593775 (1971-07-01), Privott
patent: 3867496 (1975-02-01), Mlavsky

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