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US 7,343,960 B1Granted
Method and apparatus for production of a cast component
AssigneeROLLS-ROYCE plc
InventorsDonald J. Frasier, M. Eric Schlienger
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Abstract
A system for producing cast components from molten metal. One form of the present invention includes a system for the precision pouring of molten metal within a casting mold. The precision pouring system is driven by a pressure differential.
Claims13
A method for pouring molten metal into a casting mold within a vacuum furnace, comprising:
- providing a crucible with a discharge aperture and a pour assembly located within the crucible, the pour assembly including an upstanding outer tube positioned around an upstanding inner tube, the inner tube is in fluid communication with the discharge aperture;
- melting a metal material within the crucible to a liquid state;
- flowing the liquid state metal from the crucible into a cavity defined between the outer tube and the inner tube;
- overfilling the cavity so that liquid state metal flows into and fills the inner tube;
- stopping the filling of the inner tube;
- and
- discharging the liquid state metal from the inner tube.
4 more elements
Dependencies are inferred from the claim text.