Mold and method for making variable hardness castings

Details Mold and method for making variable hardness castings Mold and method for making variable hardness castings

1995-03-30

1996-07-09

Lavinder, Jack W.

Metal founding

Process

Shaping liquid metal against a forming surface

164353, 164355, B22D 1500

Patent

active

055335632

ABSTRACT:
A mold and method for making castings having variable hardness is disclosed. The mold assembly includes a cope and drag captured between a pair of carrier plates. Chill members depend from the carrier plates and are received in appropriate apertures formed in the cope and drag. The chill members are inserted into the cope and drag after formation thereof and are removed therefrom prior to shake-out of the molded article. The chill members are used to control the cooling of the molded article.

REFERENCES:
patent: 638774 (1899-12-01), Thackray
patent: 843679 (1907-02-01), Johns
patent: 1833128 (1928-11-01), Robe
patent: 2110455 (1938-03-01), Steele et al.
patent: 5072773 (1991-12-01), Ruff et al.
patent: 5122204 (1992-06-01), McDonald

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