Calcia modified ceramic shell mold system

Details Calcia modified ceramic shell mold system Calcia modified ceramic shell mold system

B - Operations, Transporting

22

C

22/120, 22/164

B22C 9/04 (2006.01) B22C 13/08 (2006.01)

Patent

CA 1080428

ABSTRACT OF THE DISCLOSURE A ceramic shell mold system for use with superalloys and a process for making and utilizing the mold are described. The shell mold contains a colloidal silica binder with a material added which will decompose to form calcium oxide upon heating, and subsequently react with SiO2. The calcium oxide addition when reacted with these components provides cast parts with smoother surfaces and better dimensional accuracy. The mold is creep resistant and ideally suited for the production of directionally solidified articles but is not limited to these and can be used on any investment casting application.

276716

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