Apparatus for molding tubular parts by isostatic compression

Details Apparatus for molding tubular parts by isostatic compression Apparatus for molding tubular parts by isostatic compression

1981-04-02

1983-05-24

Flint, Jr., Howard

Plastic article or earthenware shaping or treating: apparatus

Means to create a vacuum or apply fluid pressure within a...

B30B 502

Patent

active

043848400

ABSTRACT:
An outer casing (1) and an inner mandrel (2), both of which are cylindrical and are substantially coaxial, with powder (3) for manufacturing the tubular parts (11) filling the space which lies between them, contain a stationary distance piece (5) disposed against a shoulder (4) formed in the upper portion of the mandrel (2) and around the upper portion. A cover (6) also is provided around the upper portion and bears firstly against the upper end of the stationary distance piece (5) and secondly against the end of the casing (1), the cover (6) being hollowed out so as to provide an annular space (7) around the stationary distance piece (5), a moving distance piece (8) being disposed in the space (7) and bearing against the surface of the powder (3) so that during isostatic compression, the upper end of the moulded part (11) can extend into the space (7) while driving the moving distance piece (8).
The apparatus can be used to manufacture beta sodium alumina tubes suitable for use as solid electrolytes in sodium-sulphur electric cells.

REFERENCES:
patent: 2999780 (1961-09-01), Penault
patent: 3193900 (1965-07-01), Wendt
patent: 3239591 (1966-03-01), Wendt
patent: 3523502 (1970-08-01), Edwards
patent: 3588080 (1971-06-01), Wallick
patent: 3824051 (1974-07-01), Van Leemput
patent: 4056347 (1977-11-01), Trolle

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