Process and apparatus for direct chill casting
OwnerEdmund M. Dunninventor
Life of this patent
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Abstract
An improved apparatus for direct chill casting of metals includes a mold, a bottom block assembly and a coolant. The mold is configured to surround a molten metal with a mold wall and the mold wall has an outer surface and an inner surface being in contact with the molten metal. The bottom block assembly is arranged at the bottom of the mold and includes a direct chill casting block configured to move away from the mold as the casting forms a solidifying shell of the molten metal. The coolant surrounds the outer surface of the mold wall and is arranged to remove heat away from the molten metal via the inner surface of the mold wall. The outer surface of the mold wall has a circumferential groove filled with a brazing alloy.
Claims16
An improved apparatus for direct chill casting of metals comprising:
- a mold configured to surround a molten metal with a mold wall, said mold wall comprising an outer surface and an inner surface being in contact with the molten metal;
- a bottom block assembly arranged at the bottom of the mold and comprising a direct chill casting block configured to move away from the mold as the casting forms a solidifying shell of the molten metal;
- a coolant surrounding the outer surface of the mold wall and arranged to remove heat away from the molten metal via the inner surface of the mold wall;
- and
- wherein said outer surface of the mold wall comprises a groove filled with a brazing alloy.
An improved method for direct chill casting of metals comprising:
- providing a mold configured to surround a molten metal with a mold wall, said mold wall comprising an outer surface and an inner surface being in contact with the molten metal;
- providing a bottom block assembly arranged at the bottom of the mold and comprising a direct chill casting block configured to move away from the mold as the casting forms a solidifying shell of the molten metal;
- providing a coolant surrounding the outer surface of the mold wall and arranged to remove heat away from the molten metal via the inner surface of the mold wall;
- casting said molten metal by moving away said direct chill casting block from the bottom of said mold while heat is removed by said coolant through said inner surface of the mold wall;
- and
- wherein said outer surface of the mold wall comprises a groove filled with a brazing alloy.
Dependencies are inferred from the claim text.