Process for the fabrication of monocrystalline castings

Details Process for the fabrication of monocrystalline castings Process for the fabrication of monocrystalline castings

1983-09-28

1999-05-04

Miller, Edward A.

Metal founding

Process

Shaping liquid metal against a forming surface

1641221, B22D 2500

Patent

active

058992570

ABSTRACT:
A process and apparatus for fabricating monocrystalline castings are disced in which molten metal is poured into a mold having vertically arranged, individual mold cavities, the solidification front is controlled to progress vertically upwardly from the bottom, and a single crystal grain is selected by a selection device placed in the lower part of the mold. The invention consists in directly superposing a multiplicity of individual mold cavities one above the other in a string, several such strings capable of being placed in parallel between a common metal sprue cup and a chilled plate to increase production capacities.

REFERENCES:
patent: 3536121 (1970-10-01), Piearcey
patent: 3543284 (1970-11-01), Sink et al.
patent: 3690368 (1972-09-01), Coplet et al.
patent: 3739835 (1973-06-01), Copley et al.
patent: 3771586 (1973-11-01), Waring
patent: 3888301 (1975-06-01), Hayes
patent: 4175609 (1979-11-01), Gammal et al.

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