SYSTEMS FOR CENTRIFUGALLY CASTING HIGHLY REACTIVE TITANIUM METALS
First Claim
1. A system for centrifugally casting a highly reactive titanium metal comprising:
- a cold wall induction crucible for containing a titanium metal charge, the induction crucible having a plurality of induction coils and a removable bottom plate;
a power source to heat the titanium metal charge in the induction crucible to obtain a molten metal;
a preheated secondary crucible for catching the molten metal as it falls from the induction crucible after the removable bottom plate has been withdrawn and the power source turned off, anda centrifugal casting machine for holding and accelerating the secondary crucible to centrifugally force the molten metal into a casting mold and produce a cast component.
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Accused Products
Abstract
Systems for centrifugally casting a highly reactive titanium metal including a cold wall induction crucible for containing a titanium metal charge, the induction crucible having a plurality of induction coils and a removable bottom plate, a power source to heat the titanium metal charge in the induction crucible to obtain a molten metal, a preheated secondary crucible for catching the molten metal as it falls from the induction crucible after the removable bottom plate has been withdrawn and the power source turned off, and a centrifugal casting machine for holding and accelerating the secondary crucible to centrifugally force the molten metal into a casting mold and produce a cast component.
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Citations
20 Claims
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1. A system for centrifugally casting a highly reactive titanium metal comprising:
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a cold wall induction crucible for containing a titanium metal charge, the induction crucible having a plurality of induction coils and a removable bottom plate; a power source to heat the titanium metal charge in the induction crucible to obtain a molten metal; a preheated secondary crucible for catching the molten metal as it falls from the induction crucible after the removable bottom plate has been withdrawn and the power source turned off, and a centrifugal casting machine for holding and accelerating the secondary crucible to centrifugally force the molten metal into a casting mold and produce a cast component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for centrifugally casting a highly reactive titanium metal comprising:
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a cold wall induction crucible for containing a titanium metal charge, the induction crucible having a plurality of induction coils and a removable bottom plate; a power source to heat the titanium metal charge in the induction crucible to obtain a molten metal; a preheated secondary crucible for catching the molten metal as it falls from the induction crucible after the removable bottom plate has been withdrawn and the power source turned off; a funnel for transferring the molten metal from the induction crucible to the secondary crucible; and a centrifugal casting machine for holding and accelerating the secondary crucible to centrifugally force the molten metal into a casting mold and produce a cast component. - View Dependent Claims (11, 14, 16)
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- 10. The system of claim 10 wherein the titanium metal charge comprises a titanium aluminide alloy.
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17. A system for centrifugally casting a highly reactive titanium metal comprising:
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a cold wall induction crucible for containing a titanium aluminide charge, the induction crucible having a plurality of induction coils and a slidably removable bottom plate; a power source to heat the titanium aluminide charge in the induction crucible to obtain a molten titanium aluminide; a preheated secondary crucible for catching the molten titanium aluminide as it falls from the induction crucible after the removable bottom plate has been withdrawn and the power source turned off; a niobium funnel for transferring the molten titanium aluminide from the induction crucible to the secondary crucible; and a centrifugal casting machine for holding the secondary crucible stationary for from about 0.5 to about 2 seconds after the molten titanium aluminide falls into the secondary crucible and, thereafter, accelerating the secondary crucible to from about 100 rpm to about 600 rpm within from about 1 second to about 2 seconds to centrifugally force the molten titanium aluminide into a casting mold and produce a cast component. - View Dependent Claims (18, 19, 20)
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Specification