Multi-stage casting plant and method of forming castings

Details Multi-stage casting plant and method of forming castings Multi-stage casting plant and method of forming castings

1994-09-20

1996-10-08

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164120, 164306, B22D 1802, B22D 1804

Patent

active

055621473

ABSTRACT:
The movable upper portion of a mould is positioned in a first position. Molten metal is forced upwardly into the mould cavity through an opening in a stationary lower mould portion. The upper portion is lowered to a position below the first position to force molten metal into all regions of the mould cavity and to force excess metal back into the furnace. A stop is moved downwardly through an upper opening defined in the upper mould portion to close the lower opening. The upper portion is lowered to a second position, and an external downward force is applied on the upper portion to compress the metal within the mould. The method is particularly suitable for forming vehicle wheel rim castings with reduced subsequent surface processing.

REFERENCES:
patent: 969539 (1910-09-01), Kitchen
patent: 3523570 (1970-08-01), Groteke et al.
patent: 3530927 (1970-09-01), Lejeune

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