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US 2015/0144286 A1Published application
Silicon carbide-containing mold and facecoat compositions and methods for casting titanium and titanium aluminide alloys
AssigneeGeneral Electric Company
InventorsBernard Patrick BEWLAY, Joan MCKIEVER, Brian Michael ELLIS, Nicholas Vincent MCCLASKY
Life of this patent
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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 silicon carbide-containing mold compositions, silicon carbide-containing intrinsic facecoat compositions, and methods for casting titanium-containing articles, and the titanium-containing articles so molded.
Claims30
A mold for casting a titanium-containing article, comprising:
- a calcium aluminate cement comprising calcium monoaluminate, calcium dialuminate, and mayenite, wherein said mold has a silicon carbide-containing intrinsic facecoat of about 10 microns to about 500 microns between a bulk of the mold and a mold cavity.
A facecoat composition of a mold that is used for casting a titanium-containing article, comprising:
- calcium monoaluminate, calcium dialuminate, silicon carbide, and mayenite, wherein said facecoat composition is a silicon carbide-containing intrinsic facecoat, is about 10 microns to about 500 microns thick, and is located between a bulk of the mold and a surface of the mold that opens to a mold cavity.
Dependencies are inferred from the claim text.