Casting methods with composite molded core assembly

Details Casting methods with composite molded core assembly Casting methods with composite molded core assembly

1979-06-04

1984-07-31

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164 36, B22C 904

Patent

active

044624530

ABSTRACT:
A core assembly for use in the casting of molten metal is formed by fabricating a first core, molding a plastic layer around the first core, and molding a second core around the plastic layer. The plastic layer is interlocked with an irregular outer surface of the first core, and the second core is interlocked with an irregular outer surface of the plastic layer. The plastic layer is then dissolved with a suitable solvent prior to placing the core assembly into a mold and molten iron being poured.

REFERENCES:
patent: 3094751 (1963-06-01), Horton
patent: 3226785 (1966-01-01), Moxlow et al.
patent: 3257692 (1966-06-01), Operhall
patent: 3259949 (1966-07-01), Moore
patent: 3339622 (1967-09-01), Horton
patent: 3410942 (1968-11-01), Bayer
patent: 3996991 (1976-12-01), Ugata et al.
patent: 4093018 (1978-06-01), Trumbauer

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