Method and apparatus for assisting removal of sand moldings from castings
AssigneeConsolidated Engineering Company, Inc.
InventorsJames L. Lewis, Jr., Ian French, Volker R. Knobloch, Scott P. Crafton, Paul M. Crafton, James R. Garrett, John W. Dalton
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractured by either explosive charges placed in the mold pack or by high energy pulsations directed at the mold. Once the mold is fractured and broken into various pieces it may then be dislodged from the casting.
Claims34
A method of removing a mold from a casting formed therein, comprising:
- subjecting the mold to a process to fracture the mold;
- directing an energized stream at the mold to cause the mold to degrade;
- and
- dislodging at least a portion of the degraded mold from the casting.
A method of dislodging a mold from a casting formed therein, comprising:
- directing an energized stream at the mold, wherein the energized stream comprises an explosive charge detonated at a selected location within exterior walls of the mold;
- subjecting the mold to a process to fracture the mold;
- and
- dislodging at least a portion of the mold from the casting.
A method of dislodging a mold from a casting formed therein, comprising:
- stimulating the mold with an energy pulsation;
- subjecting the mold to a process to assist fracturing the mold;
- and
- dislodging the mold from the casting.
Dependencies are inferred from the claim text.