Casting mold with constricting device

Details Casting mold with constricting device Casting mold with constricting device

1980-10-06

1985-08-20

Godici, Nicholas P.

Metal founding

Means to shape metallic material

United particle type shaping surface

B22C 908

Patent

active

RE0319724

ABSTRACT:
A stricture is formed between riser and cast article in a conventional metal mold casting process to facilitate clean removal of the riser after casting by interposing thin-walled frangible constriction means between riser cavity and casting cavity prior to pouring molten metal; the flow of metal into casting cavity is also regulated thereby.

REFERENCES:
patent: 900970 (1908-10-01), Washburn
patent: 1030066 (1912-06-01), Erlandson
patent: 1049877 (1913-01-01), Lange
patent: 1657952 (1928-01-01), Zoda
patent: 2313517 (1943-03-01), Cameron
patent: 2451505 (1948-10-01), Myskowski et al.
Wildermuth, J. W., et al. "A Study of Thin Metal Ingate Restrictions in Steel and Ductile Iron Castings", Trans. of The American Foundryman's Society, vol. 76, 1968, pp. 258-263.
Wlodawer, Robert, "Controlled Solidification of Steel Castings", (Foundry Publishers) GMBH, Dusseldorf, West Germany, 1967, pp. 119-121.
Wlodawer, Robert, "Directional Solidification of Steel Castings,"Pergamon Press, pp. 86-94 and 242.

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