Metal founding – Means to apply vacuum directly to work or to hold or... – Means applying vacuum or suction directly to molten casting...
Patent
1978-02-22
1980-05-13
Baldwin, Robert D.
Metal founding
Means to apply vacuum directly to work or to hold or...
Means applying vacuum or suction directly to molten casting...
164259, B22D 2702
Patent
active
042024013
ABSTRACT:
The apparatus comprises a cooled mould mounted on a bottom plate, a roof mounted on the mould, non-consumable electrodes connected to a power source and introduced into the melting chamber of the mould through sealed apertures in the roof, and a liquid metal pouring system incorporating a metal conduit with a funnel mounted in an aperture in the roof and an inclined chute positioned above the metal conduit funnel. The roof is provided with a gas exhaust pipe and with input funnels for feeding slag and alloying admixtures. The junction between the roof and the mould is sealed. The non-consumable electrodes are arranged around the circumference of the melting chamber for vertical movement, whereas the inclined chute is adapted to move in the horizontal plane.
The enclosed melting chamber makes it possible to reduce heat losses and to maintain a controlled atmosphere within the mould.
REFERENCES:
patent: 2191477 (1940-02-01), Hopkins
patent: 2191478 (1940-02-01), Hopkins
patent: 2976587 (1961-03-01), Daussan
patent: 3234608 (1966-02-01), Peras
patent: 3752216 (1973-08-01), Fritsche
patent: 4007770 (1977-02-01), Timmons
Antonov Vladimir I.
Artemiev Vladimir D.
Babin Vladimir V.
Belsky Valentin I
Bogdashich Vladimir E.
Baldwin Robert D.
Lin K. Y.
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