Crucible induction furnace provided with a preventive measure ag

Details Crucible induction furnace provided with a preventive measure ag Crucible induction furnace provided with a preventive measure ag

1991-08-01

1993-08-31

Reynolds, Bruce A.

Industrial electric heating furnaces

Induction furnace device

Having condition signaling means

373138, 373139, 266242, 266275, H05B 512

Patent

active

052415600

ABSTRACT:
A crucible induction furnace is disclosed which is provided with a preventive measure against low melting point metals and having a crucible refractory within an induction coil in a barrel container, in which the crucible induction furnace comprises a coil protection member located between the crucible refractory and the induction coil and which includes at least one air-permeating portion. An air supply pipe is in communication with the air-permeating portion for supplying pressurized air to the crucible refractory. The air permeating portion is disposed to distribute pressurized air having a higher pressure adjacent to the bottom portion of the crucible refractory than to the upper portion of the crucible refractory.

REFERENCES:
patent: 1922029 (1933-08-01), Chesnut
patent: 3660585 (1972-05-01), Waldron
patent: 3663730 (1972-05-01), Gates
patent: 3751571 (1973-08-01), Burrows
patent: 3822873 (1974-07-01), Pletscher
patent: 4205197 (1980-05-01), Omori et al.
patent: 4241232 (1980-12-01), Gelsing
patent: 4339625 (1982-07-01), Delassus et al.
patent: 4658404 (1987-04-01), Sick et al.
patent: 4745620 (1988-05-01), Mortimer
patent: 4989218 (1991-01-01), Tateno
patent: 5109389 (1992-04-01), Stenzel

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