Apparatus for compensating axial strain in an isostatic press

Details Apparatus for compensating axial strain in an isostatic press Apparatus for compensating axial strain in an isostatic press

1985-02-08

1986-01-14

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

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

B30B 502, B30B 1102

Patent

active

045643520

ABSTRACT:
An isostatic press acts against a molding tool (4,5,11,12,32,33) enclosed in the pressing chamber of the press, the cavity (4) of the press tool being defined in the press by an enveloping wall (5) of an elastomeric material and two end walls (11,33) meeting the enveloping wall (5). The dry pressing chamber of the press is defined by a radially deformable elastomeric jacket (6) exercising pressure against the enveloping wall (5) of the molding tool, and two press end structures (2,3) meeting the pressing chamber jacket (6) and carrying the end walls (33,11) of the molding tool. At least one end wall (33,11) is carried by an adjacent end structure (3,2) via an elastomeric element (31). The elastomeric element is disposed with its peripheral edge exposed against, and lying adjacent the deformable elastomeric jacket (6) of the pressing chamber. When the press is pressurized, the jacket (6) will press radially against the elastomeric element (31) such that the latter is axially expanded, thereby compensating for the axial strain of the press frame.

REFERENCES:
patent: 3608026 (1971-09-01), Isaksson
patent: 3832100 (1974-08-01), Baxendale
patent: 3832103 (1974-08-01), Bewles
patent: 3956452 (1976-05-01), Saito
patent: 4046499 (1977-09-01), Saito
patent: 4056347 (1977-11-01), Trolle
patent: 4330251 (1982-05-01), Lebas et al.

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