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Recirculating molten metal supply system and method

United States Patent

6,585,797
July 1, 2003
View the Complete Patent at the US Patent & Trademark Office
The melter furnace includes a heating chamber (16), a pump chamber (18), a degassing chamber (20), and a filter chamber (22). The pump chamber (18) is located adjacent the heating chamber (16) and houses a molten metal pump (30). The degassing chamber (20) is located adjacent and in fluid communication with the pump chamber (18), and houses a degassing mechanism (36). The filter chamber (22) is located adjacent and in fluid communication with the degassing chamber (20). The filter chamber (22) includes a molten metal filter (38). The melter furnace (12) is used to supply molten metal to an externally located holder furnace (14), which then recirculates molten metal back to the melter furnace (12).
Kinosz; Michael J. (Apollo, PA), Meyer; Thomas N. (Murrysville, PA)
Alcoa Inc. (Pittsburgh, PA)
10/ 056,421
20020125620
January 24, 2002
STATEMENT REGARDING FEDERALLY FUNDED RESEARCH The subject matter of this application was made with United States Government support under Contract No. 86X-SU545C awarded by the Department of Energy. The United States Government has certain rights to this invention.