RADIAL TYPE CERAMIC ROTOR

Japanese Patent JPH03281902

A

PURPOSE:To obtain a fine radial type ceramic rotor having a remarkable high strength by integrally bonding to each other a blade portion side molding and shaft portion molding, which are independently molded in advance, at a shaft portion where a relatively small stress is generated at the time of rotation, and bringing the moldings into close contact with each other, followed by baking under a hydrostatic pressure. CONSTITUTION:A blade portion side molding 1 comprises a blade portion 2 and a portion 3 of a shaft portion formed integrally with the blade portion 2, and is brought into close contact with a shaft portion molding 4 at a close contact portion 5. The close contact surface of the close contact portion 5 is smoothed, and slurry or paste-like bond, preferably, made of the same material as that of either the blade portion side molding or the shaft portion molding is applied to a bonded surface. After the above treatment, the moldings in close contact with each other are covered with an elastic film, followed by application of a hydro static pressure. The moldings thus hydrostatically pressurized are baked at an optimum baking temperature and in the optimum baking atmosphere, to be integrally bonded to each other at the shaft portion. The portion where the blade portion side molding and the shaft portion molding are bonded to each other must be located within a positional range apart by at least 3/10 or more of the maximum diameter of the blade portion from a back surface 1a of the blade portion.

HAYAKAWA KAZUMORI

JP22530590A

December 12, 1991

August 29, 1990

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NGK INSULATORS LTD

F01D5/04; C04B37/00; F02B39/00; (IPC1-7): C04B37/00; F01D5/04; F02B39/00

JPS5788201A	1982-06-02
JP57500745Y

Akihide Sugimura (1 outside)

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