Press sintering process for green compacts and apparatus therefo

Details Press sintering process for green compacts and apparatus therefo Press sintering process for green compacts and apparatus therefo

1985-07-23

1986-07-22

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Consolidation of powder prior to sintering

419 48, 419 49, 419 51, 65 181, 264 56, 264319, 264332, B22F 100

Patent

active

046018778

ABSTRACT:
A green compact (17) preheated to a predetermined temperature in a heating furnace (16) is inserted into a container comprising a press table (20) and a hollow cylinder (25), and molten glass (33) is then placed into the container. The green compact (17) is uniformly pressed by a press rod (29) through the molten glass (33). The molten glass (33) is cooled by a coolant flowing through channels (22) and (26) formed in the press table (20) and the cylinder (25), whereby a solidified shell (34) is formed at the outer peripheral portion of the mass of glass. Finally, the shell (34) is taken out from the container, and the molten portion of glass (33) is transferred into a ladle (31) through a grating (30), leaving the compressed sintered product on the grating (30).

REFERENCES:
patent: 4341557 (1982-07-01), Lizenby
patent: 4371396 (1983-02-01), Larsson et al.
patent: 4428906 (1984-01-01), Rozmus
patent: 4446100 (1984-05-01), Adlerborn et al.

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