Apparatus for induction heating of molten metal

Details Apparatus for induction heating of molten metal Apparatus for induction heating of molten metal

1984-09-06

1986-04-15

Envall, Jr., Roy N.

Industrial electric heating furnaces

Induction furnace device

Coreless

F27D 100

Patent

active

045832307

ABSTRACT:
The disclosed induction heating apparatus comprises: a refractory vessel in which a charge to be heated is placed; said vessel comprising a refractory lining and an outer shell covering the refractory lining and having strength high enough to sustain the lining; an induction heating coil arranged spacedly around the outer circumference of said shell; and a bottom outer shell covering the bottom of said refractory lining, said outer shell whose outer diameter is, at a position below the upper end of said coil, smaller than the inner diameter of said coil so as to enable the removal of said vessel through the upper side of said coil, at least part of said outer shell covering a height of the circumferential surface of said vessel corresponding to the height of said coil being made of a non-magnetic material, and said bottom outer shell being made of metal.

REFERENCES:
patent: 1694791 (1928-12-01), Northrup
patent: 3303259 (1967-02-01), Junker
patent: 3687437 (1972-08-01), Fischer
patent: 3944715 (1976-03-01), Hegewaldt et al.
patent: 4123045 (1978-10-01), Michelet et al.
patent: 4411412 (1983-10-01), Lechevallier

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