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US 9,802,243 B2Granted
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
The disclosure relates generally to mold compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to mold compositions, intrinsic facecoat compositions, and methods for casting titanium-containing articles, and the titanium-containing articles so molded.
Claims23
A method for forming a mold for casting a titanium-containing article, said method comprising:
- combining calcium aluminate cement with a liquid to form a first slurry with a solids loading within the range of about 70% to about 80%;
- adding oxide particles to the first slurry to form a second slurry, the solids loading of the second slurry being within the range of about 75% to about 90%;
- introducing the second slurry into a vessel that contains a fugitive pattern;
- and
- allowing the second slurry to cure in the vessel to fort a mold for casting a titanium-containing article.
2 more elements
A method for forming a mold for casting a titanium-containing article, said method comprising:
- combining calcium aluminate cement with a liquid to form a first slurry with a viscosity within the range of about 10 centipoise to about 250 centipoise;
- adding oxide particles to the first slurry to form a second slurry with a viscosity within the range of about 2,000 centipoise to about 8,000 centipoise;
- introducing the second slurry into a vessel that contains a fugitive pattern;
- and allowing the second slurry to cure in the vessel to form a mold for casting a titanium-containing article.
1 more element
Dependencies are inferred from the claim text.