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US 8,366,993 B2Granted
System and method for degassing molten metal
OwnerPaul V. Cooperinventor
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Abstract
A system for adding gas to and transferring molten metal from a vessel and into one or more of a ladle, ingot mold, launder, feed die cast machine or other structure is disclosed. The system includes at least a vessel for containing molten metal, an overflow (or dividing) wall, a device or structure, such as a molten metal pump, for generating a stream of molten metal, and one or more gas-release devices.
Claims19
A system for releasing gas into molten metal, the system comprising:
- (a) a vessel for containing molten metal, the vessel comprising a bottom interior surface;
- (b) a raised chamber in fluid communication with the vessel, the raised chamber comprising:
- (i) a bottom interior surface positioned at least partially above the bottom interior surface of the vessel;
- and
- (ii) a discharge for expelling molten metal from the raised chamber;
- and
- (c) two degassers positioned in the raised chamber, the two degassers for releasing gas into the molten metal in the raised chamber;
- and
- (d) a dividing wall between the two degassers, each dividing wall including an opening through which molten metal can pass.
6 more elements
Dependencies are inferred from the claim text.