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US 6,645,270 B2Granted
Method of heating a crucible for molten aluminum
OwnerC. Edward Eckertinventor
Life of this patent
Estimating the term…
Abstract
A method of heating molten aluminum in a container utilizing gas stirring means.
Claims18
A method of heating a body of molten aluminum in a container to more efficiently add heat to the molten aluminum, comprising the steps of:
- (a) providing a container having a body of molten aluminum therein, said body having a surface and said container having a bottom;
- (b) applying heat to the body;
- (c) providing a conduit in said body, said conduit having a first portion thereof adjacent said bottom and at least one opening thereinto to permit molten aluminum to flow into said conduit, said conduit having a second portion thereof having at least one opening in said second portion to permit molten aluminum to flow out of said conduit into said body;
- and
- (d) introducing gas to said conduit to flow molten aluminum upwardly therein, said molten aluminum flowing into said conduit through said opening in said first portion and out of said conduit through said opening in said second portion, thereby circulating molten aluminum in said container to provide a stirring motion to more efficiently add heat to the body of molten aluminum.
2 more elements
A method of heating a body of molten metal in a container to more efficiently add heat to the molten metal, comprising the steps of:
- (a) providing a container having a body of molten aluminum therein, said body having a top surface and said container having a bottom;
- (b) heating said body by impinging a flame on the surface of said body to the body;
- (c) providing a conduit in said body, said conduit having a bottom portion adjacent the bottom of said container, said bottom portion having an opening thereinto to permit molten aluminum to flow into said conduit, said conduit having a top portion adjacent said surface, said top portion having an opening to permit molten aluminum to flow out of said conduit into said body;
- and
- (d) introducing gas to the bottom portion of said conduit to flow molten aluminum upwardly in the conduit, said molten aluminum flowing into said conduit through said opening in said bottom portion and out of said conduit through said opening in said top portion, thereby circulating molten aluminum adjacent said bottom of said container towards said surface to provide a stirring motion to more efficiently add heat to the body of molten aluminum.
2 more elements
A system for heating a body of molten aluminum in a container to more efficiently add heat to the molten aluminum, comprising:
- (a) a container having a body of molten aluminum therein, said body having a surface and said container having a bottom;
- (b) means for applying heat to the surface of the body;
- (c) a conduit located in said body, said conduit having a bottom portion adjacent the bottom of said container, said bottom portion having an opening thereinto to permit molten aluminum to flow into said conduit, said conduit having a top portion adjacent said surface having an opening to permit molten aluminum to flow out of said conduit into said body near said surface;
- and
- (d) means for introducing gas to the bottom portion of said conduit to flow molten aluminum upwardly in the conduit, said molten aluminum flowing into said conduit through said opening in said bottom portion and out of said conduit through said opening in said top portion, thereby circulating molten aluminum adjacent said bottom of said container towards said surface to provide a stirring motion to more efficiently add heat to the body of molten aluminum.
2 more elements
Dependencies are inferred from the claim text.