Simultaneous multi-alloy casting
AssigneeAlcoa Inc.
InventorsRaymond J. Kilmer, James L. Kirby
Life of this patent
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Abstract
A method of casting a multi-layered metal ingot including the steps of delivering a metallic divider member into a direct chill mold, pouring a first molten metal into the mold on one side of the divider member, and pouring a second molten metal into the mold on the other side of the divider member, and allowing the first molten metal and the second molten metal solidify to form a metal ingot which includes the divider metal layer disposed there between.
Claims24
A method of casting a multi-layered metal ingot comprising the steps of:
- (a) delivering a metallic divider member into a direct chill mold;
- (b) pouring a first molten metal into the mold on one side of the divider member and pouring a second molten metal into the mold on the other side of the divider member, the first metal having a different composition from the second metal;
- (c) allowing the first molten metal and the second molten metal to solidify such that the ingot includes a layer of divider metal disposed between a layer of the first metal and a layer of the second metal;
- and
- (d) withdrawing the multi-layered metal ingot from the mold.
The method of claim 2, wherein the divider member comprises a sheet having a thickness of about 0.07 to about 0.25 inch.
Dependencies are inferred from the claim text.