Method of manufacturing a split circular ring

Details Method of manufacturing a split circular ring Method of manufacturing a split circular ring

1990-05-31

1992-01-21

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 9, 419 49, B22F 704

Patent

active

050826239

ABSTRACT:
A method of preparing a parted circular ring, preferably a vane ring or sealing ring of a turbine, by the ring being hot pressed isostatically in a casing having radial partitions provided therein of the same material as the powder used for the isostatic hot pressing, a coating of release agent being provided at one side of the partitions.

REFERENCES:
patent: 4097276 (1978-06-01), Six
patent: 4127684 (1978-11-01), Baker
patent: 4445259 (1984-05-01), Ekbom
patent: 4526747 (1985-07-01), Schimmel et al.
patent: 4526748 (1985-07-01), Rozmus
patent: 4575327 (1986-03-01), Borchert et al.
patent: 4587700 (1986-05-01), Gerbishley et al.
patent: 4680160 (1987-07-01), Helmink
patent: 4855103 (1989-08-01), Ekbom

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