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US 8,689,856 B1Granted
Method of making long ingots (cutting in furnace)
AssigneeRTI International Metals, Inc.
InventorsMichael P. Jacques, Kuang-O Yu
Life of this patent
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Abstract
A continuous casting furnace is configured for efficiently continuously casting ingots, including titanium alloy ingots. The furnace is configured with an internal cutter for cutting an ingot within the furnace interior chamber. The furnace typically includes a first interior chamber in which a continuous casting mold is disposed and a withdrawal chamber which is separable from the first interior chamber to facilitate withdrawal of finished ingots therefrom while casting continues within the first chamber.
Claims19
A method comprising the steps of:
- forming a metal casting within an inert gas atmosphere of a furnace interior chamber with a continuous casting mold disposed in the furnace interior chamber;
- and
- cutting the metal casting with a cutter in the furnace interior chamber to form an unfinished metal ingot in the furnace interior chamber and a finished metal ingot which is in the furnace interior chamber downstream of the unfinished ingot;
- wherein the step of cutting creates cuttings;
- and
- further comprising the step of moving the metal casting through an annular barrier which is downstream of the cutter and which engages or lies adjacent an outer perimeter of the metal casting to prevent the cuttings from falling past the barrier.
3 more elements
Dependencies are inferred from the claim text.