Combination mold and selector device for casting single crystal

Details Combination mold and selector device for casting single crystal Combination mold and selector device for casting single crystal

1982-05-18

1984-06-12

Lacey, David L.

Metal founding

Means to shape metallic material

United particle type shaping surface

1641222, 164361, 422248, B22C 904, B22C 922

Patent

active

044535880

ABSTRACT:
A selector for use in allowing only one crystal from a directionally-solidified initiating mould cavity to grow into a main casting cavity is described. The selector comprises a ceramic member with a curvilinear groove formed in its surface. The selector is positioned in a two part ceramic shell mould which cooperates with the groove in the selector to form a curvilinear passage which selects the single crystal required.

REFERENCES:
patent: 1976009 (1934-10-01), DeBats
patent: 2698467 (1955-01-01), Tarquinee et al.
patent: 3177537 (1965-04-01), Horton
patent: 3690368 (1972-09-01), Copley et al.
patent: 4111252 (1978-09-01), Day et al.
patent: 4133368 (1979-01-01), Hayes

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