B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/120, 22/164
B22C 9/02 (2006.01) B22C 9/04 (2006.01) B22C 13/08 (2006.01)
Patent
CA 2001576
ABSTRACT OF THE DISCLOSURE A reinforced ceramic investment casting shell mold and method of making such mold. The ceramic investment casting shell mold includes alternate, repeating layers of a ceramic material and a ceramic stucco defining an overall thickness of the shell mold. A fibrous reinforcing material is disposed in the alternate, repeating layers at an intermediate thickness of the shell mold. The fibrous reinforcing material has high tensile strength at elevated temperature and a coefficient of thermal expansion that is less than the coefficient of thermal expansion of the ceramic material and the ceramic stucco. The fibrous reinforcing material is preferably woven into a twisted yarn and disposed in a generally spiral configuration.
Corrigan John
Crouch Philip D.
Lane Jan M.
Corrigan John
Crouch Philip D.
Howmet Corporation
Kirby Eades Gale Baker
Lane Jan M.
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