Levitation melting crucibles

Details Levitation melting crucibles Levitation melting crucibles

1996-05-01

1997-06-03

Hoang, Tu B.

Industrial electric heating furnaces

Induction furnace device

Coreless

373157, 219648, H05B 622

Patent

active

056362412

ABSTRACT:
Disclosed is a levitation melting crucible which can facilitate penetration of magnetism into the crucible and which can prevent a molten metal from being contaminated by an insulating material. The levatation melting crucible comprises a cylindrical main body having a closed bottom, a plurality of slits defined vertically in the circumferential wall of the main body to open inward and outward at predetermined intervals in the circumferential direction and an insulating material filled in each of the slits; wherein each slit is designed to have an inner opening width smaller than its outer opening width, with respect to the radius of the main body, for example, 1.5 A>B.

REFERENCES:
patent: 3702368 (1972-11-01), Hukin
patent: 3775091 (1973-11-01), Clites et al.
patent: 5058127 (1991-10-01), Garnier et al.
patent: 5394432 (1995-02-01), Fukuzawa et al.

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