Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2007-11-20
2007-11-20
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S517000
Reexamination Certificate
active
11020519
ABSTRACT:
A shell mold for casting molten material to form an article is described. The mold includes a shell for containing the molten material, formed from at least one of yttrium silicates, zirconium silicates, hafnium silicates, and rare earth silicates. The mold also includes a facecoat disposed on an inner surface of the shell that contacts the molten material. The facecoat can be made from the materials described above. A method of casting a niobium-silicide article is also described, using the shell mold described herein. A method of making the ceramic shell mold is described as well, along with a slurry composition used in the manufacture of the shell mold.
REFERENCES:
patent: 3955616 (1976-05-01), Gigliotti, Jr. et al.
patent: 3972367 (1976-08-01), Gigliotti, Jr. et al.
patent: 4141781 (1979-02-01), Greskovich et al.
patent: 4247333 (1981-01-01), Ledder et al.
patent: 4664172 (1987-05-01), Takayanagi
patent: 4703806 (1987-11-01), Lassow et al.
patent: 4947927 (1990-08-01), Horton
patent: 4966225 (1990-10-01), Johnson et al.
patent: 5143777 (1992-09-01), Mills
patent: 6500283 (2002-12-01), Schaeffer et al.
patent: 6676381 (2004-01-01), Subramanian et al.
patent: 6759151 (2004-07-01), Lee
patent: 2003/0190235 (2003-10-01), Subramanian et al.
Bewlay Bernard Patrick
Cretegny Laurent
Gigliotti, Jr. Michael Francis Xavier
Petterson Roger John
Ritter Ann Melinda
Coppa Francis T.
Lin Kuang Y.
Patnode Patrick K.
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