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Casting methods

United States Patent

December 18, 2012
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A casting device includes a covered crucible having a top opening and a bottom orifice, a lid covering the top opening, a stopper rod sealing the bottom orifice, and a reusable mold having at least one chamber, a top end of the chamber being open to and positioned below the bottom orifice and a vacuum tap into the chamber being below the top end of the chamber. A casting method includes charging a crucible with a solid material and covering the crucible, heating the crucible, melting the material, evacuating a chamber of a mold to less than 1 atm absolute through a vacuum tap into the chamber, draining the melted material into the evacuated chamber, solidifying the material in the chamber, and removing the solidified material from the chamber without damaging the chamber.
Marsden; Kenneth C. (Idaho Falls, ID), Meyer; Mitchell K. (Idaho Falls, ID), Grover; Blair K. (Idaho Falls, ID), Fielding; Randall S. (Idaho Falls, ID), Wolfensberger; Billy W. (Rigby, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
12/ 175,122
July 17, 2008
CONTRACTUAL ORIGIN OF THE INVENTION This invention was made with government support under Contract Number DE-AC07-05ID14517 awarded by the United States Department of Energy. The government has certain rights in the invention.