Industrial electric heating furnaces – With condensating device
Patent
1992-02-27
1994-12-13
Reynolds, Bruce A.
Industrial electric heating furnaces
With condensating device
373 62, 373 68, F27D 1700
Patent
active
053735293
ABSTRACT:
The invention relates to improved apparatuses and methods for remelting metal alloys in furnaces, particularly consumable electrode vacuum arc furnaces. Excited reactive gas is injected into a stationary furnace arc zone, thus accelerating the reduction reactions which purify the metal being melted. Additionally, a cooled condensation surface is disposed within the furnace to reduce the partial pressure of water in the furnace, which also fosters the reduction reactions which result in a purer produced ingot. Methods and means are provided for maintaining the stationary arc zone, thereby reducing the opportunity for contaminants evaporated from the arc zone to be reintroduced into the produced ingot.
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Smith Mark F.
Williamson Rodney L.
Zanner Frank J.
Hoang Tu
Libman George H.
Reynolds Bruce A.
Sandia Corporation
Stanley Timothy D.
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