Demolding method and equipment

Details Demolding method and equipment Demolding method and equipment

2011-03-15

2011-03-15

Kerns, Kevin P (Department: 1735)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S344000

Reexamination Certificate

active

07905270

ABSTRACT:
A demolding method and equipment to reduce dents produced in an as-cast product. The method includes the steps of placing a tight-flask cope on a tight-flask drag for mating, such that a gate for the tight-flask cope and drag faces upward; reversing the tight-flask cope and drag after they are poured with molten metal such that the gate faces downward; and drawing a cope, a drag, and an as-cast product from the reversed tight-flask cope and drag, with the gate facing downward, from above to below.

REFERENCES:
patent: 2651087 (1953-09-01), Fellows
patent: 59-1460 (1984-01-01), None
patent: 2-65471 (1990-05-01), None
patent: 11-5153 (1999-01-01), None
patent: 2000-176632 (2000-06-01), None
patent: 2001-25859 (2001-01-01), None
patent: 2001-71123 (2001-03-01), None

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