Back to results
US 2016/0008872 A1Published application
Ceramic core compositions, methods for making cores, methods for casting hollow titanium-containing articles, and hollow titanium-containing articles
AssigneeGeneral Electric Company
InventorsBernard Patrick BEWLAY, Joan MCKIEVER, Brian Michael ELLIS, Nicholas Vincent MCLASKY
Life of this patent
Estimating the term…
Abstract
The disclosure relates generally to core compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to core compositions and methods for casting hollow titanium-containing articles, and the hollow titanium-containing articles so molded.
Claims16
A method for making a casting mold for casting a hollow titanium-containing article, said method comprising:
- a) combining calcium aluminate particles, large scale particles and a liquid to produce a slurry of calcium aluminate particles and large scale particles in the liquid;
- b) introducing the slurry into a mold cavity that contains a fugitive pattern;
- and
- c) allowing the slurry to cure in the mold cavity to form a mold of a titanium-containing article.
1 more element
A casting method for hollow titanium and titanium alloys comprising:
- a) obtaining an investment casting mold composition comprising calcium aluminate particles and large scale particles;
- b) pouring said investment casting mold composition into a vessel containing a fugitive pattern;
- c) curing said investment casting mold composition;
- d) removing said fugitive pattern from the mold;
- e) preheating the mold to a mold casting temperature;
- f) pouring molten titanium or titanium alloy into the heated mold;
- g) solidifying the molten titanium or titanium alloy and forming a solidified hollow titanium or titanium alloy casting;
- and
- h) removing the solidified hollow titanium or titanium alloy casting from the mold.
6 more elements
Dependencies are inferred from the claim text.