Ceramic core compositions, methods for making cores, methods for casting hollow titanium-containing articles, and hollow titanium-containing articles

摘要

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.

主权项

1. 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 wherein the calcium aluminate particles comprise particles of up to about 50 microns in outside dimension; 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.