Electric induction furnace

Details Electric induction furnace Electric induction furnace

1993-04-01

1995-11-21

Hoang, Tu

Industrial electric heating furnaces

Induction furnace device

Coreless

373151, 373163, H05B 624

Patent

active

054694612

ABSTRACT:
An electric induction furnace for heating various electrically conductive materials includes a pair of concentric crucibles disposed at a predetermined angle relative to a horizontal axis. The orientation of the crucibles enables the induction furnace to be directly coupled to a horizontal mold while at the same time allows venting of trapped gases and impurities in the conductive material. The configuration of the furnace further enables the casting mold to be partially inserted into the furnace, reducing heat losses of the furnace and, in turn, operating costs and also enabling the temperature of the molten material at the mold entry point to be relatively accurately controlled in order to provide castings having relatively uniform mechanical properties. The double crucible design minimizes risk of damage to the surrounding electric induction coil and further reduces the cost of replacement of a worn crucible.

REFERENCES:
patent: 2499540 (1950-03-01), Tama
patent: 2650255 (1953-08-01), Hogel et al.
patent: 4658404 (1987-04-01), Sick et al.

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