Mold compositions and methods for casting titanium and titanium aluminide alloys
AssigneeGeneral Electric Company
InventorsBernard Patrick Bewlay, Stephen Bancheri, Michael Weimer, Joan McKiever, Brian Ellis
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Abstract
A method for forming a mold for casting a titanium-containing article, the method including combining calcium aluminate with a liquid to produce an initial slurry of calcium aluminate and adding oxide particles into the initial slurry to create a final slurry. The method further includes introducing the final slurry into a mold cavity that contains a fugitive pattern and allowing the final slurry to cure in the mold cavity to form a mold of a titanium-containing article.
Claims19
A method for forming a mold for casting a titanium-containing article, said method comprising:
- combining calcium aluminate with a liquid to produce an initial slurry of calcium aluminate, wherein the percentage of solids in the initial slurry is about 70% to about 80% and a viscosity of the initial slurry is about 50 to about 150 centipoise;
- adding oxide particles into the initial slurry to create a final slurry, wherein the percentage of solids in the final slurry is about 75% to about 90%;
- introducing the final slurry into a mold cavity that contains a fugitive pattern;
- and
- allowing the final slurry to cure in the mold cavity to form a mold of a titanium-containing article.
A method for forming a mold for casting a titanium-containing article, said method comprising:
- combining calcium aluminate with a liquid to produce an initial slurry of calcium aluminate, wherein the percentage of solids in the initial slurry is about 70% to about 80% and a viscosity of the initial slurry is about 50 to about 150 centipoise;
- adding oxide particles into the initial slurry to create a final slurry, wherein the percentage of solids in the final slurry is about 75% to about 90% and a viscosity of the final slurry is about 2,000 to about 8,000 centripose;
- introducing the final slurry into a mold cavity that contains a fugitive pattern;
- and
- allowing the final slurry to cure in the mold cavity to form a mold of a titanium-containing article.
Dependencies are inferred from the claim text.