Induction furnace having improved thermal profile

Details Induction furnace having improved thermal profile Induction furnace having improved thermal profile

1981-08-31

1983-10-11

Shaw, C. C.

Electric heating

Metal heating

Of cylinders

219 1043, 219 1057, 373157, 164513, 164507, H05B 630, H05B 640

Patent

active

044094515

ABSTRACT:
Apparatus for casting directionally solidified articles is disclosed. Concepts for obtaining a desired temperature profile in an induction furnace are discussed.
An induction furnace 10 has increased heating capacity at the withdrawal end 32 of the susceptor 28. A hot zone baffle 42 is disposed at the withdrawal end to inhibit the radiation of heat energy from the hot zone 12. A plurality of grooves 34 are formed about the interior of the susceptor at the withdrawal end to inhibit the conduction of heat energy out of the susceptor. A preferred thermal profile in the operating furnace with a peak temperature in close proximity to the withdrawal end results.

REFERENCES:
patent: 2773923 (1956-12-01), Smith
patent: 3260505 (1966-07-01), Ver Snyder
patent: 3405220 (1968-10-01), Barrow et al.
patent: 3494709 (1970-02-01), Piearcey
patent: 3538981 (1970-11-01), Phipps, Jr.
patent: 3714977 (1973-02-01), Terkelsen
patent: 3754110 (1973-08-01), Van Dongen et al.
patent: 3793010 (1974-02-01), Lemkey et al.
patent: 3931847 (1976-01-01), Terkelsen
patent: 4108236 (1978-08-01), Salkeld
patent: 4202400 (1980-05-01), Gigliotti, Jr. et al.

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