Apparatus and method of forming parts

Details Apparatus and method of forming parts Apparatus and method of forming parts

2005-05-24

2005-05-24

Stoner, Kiley (Department: 1725)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S113000, C164S120000

Reexamination Certificate

active

06896031

ABSTRACT:
A closed system and method that includes a source of pressurizeable molten lead connected to a mold having a mold cavity therein with the mold maintainable at sufficiently low temperature so that a charge of molten lead located in the mold cavity solidifies to thereby form a solidified casting in the mold cavity. A housing having a runner, is maintainable at sufficiently high temperature to maintain the molten lead in a molten state so that the mold cavity can be refilled with a fresh charge molten lead when a solidified casting is removed therefrom without introducing air to the closed system. A shut-off valve, having an open position to allow a charge of molten lead to flow into the mold cavity and a closed position to prevent molten lead from flowing out of the runner as the molten lead in mold cavity solidifies with the shut-off valve configurable to intensify the pressure of the lead in the mold cavity.

REFERENCES:
patent: 6598658 (2003-07-01), Ratte

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