Cold crucible induction furnace

Details Cold crucible induction furnace Cold crucible induction furnace

1990-05-21

1992-02-18

Reynolds, Bruce A.

Industrial electric heating furnaces

Induction furnace device

Coreless

373151, 373152, 373154, 373158, 373144, 75 1015, H05B 622

Patent

active

050900226

ABSTRACT:
A coreless induction furnace comprising a crucible for holding a quantity of metal to be heated by the furnace. The crucible has an open top, side walls and a closed bottom. An induction coil is operatively associated with the crucible for generating a time-varying magnetic induction field. Coupling structure extending above the top of the crucible is provided to couple at least a portion of the induction field to the center portion of the top surface of the metal to be heated.

REFERENCES:
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patent: 1834725 (1931-12-01), Northrup
patent: 1839801 (1932-01-01), Northrup
patent: 1879360 (1932-09-01), Linnhoff
patent: 1943802 (1934-01-01), Northrup
patent: 3314670 (1967-04-01), Kennedy
patent: 3461215 (1969-08-01), Reboux
patent: 3775091 (1973-11-01), Clites et al.
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patent: 4432093 (1984-02-01), Reboux
patent: 4738713 (1988-04-01), Stickle et al.
patent: 4873698 (1989-10-01), Boen
P. G. Clites, "The Inductoslag Melting Process," U.S. Department of the Interior Bulletin 673, 1982.

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