Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including both heating and cooling means
Patent
1993-04-16
1994-08-16
Bushey, Charles S.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including both heating and cooling means
264313, 425389, 425392, 4254051, 425407, 425DIG119, B28B 2100
Patent
active
053381777
ABSTRACT:
A hot compacting device for producing a part, whose production requires raising the pressure and temperature simultaneously, is provided. A device made according to the present invention includes a heating mold for receiving a blank of the part to be produced and compacting element for pressing the blank against the heating mold. The compacting element includes a compacting bag for pressing the blank against the mold and an anti-convection zone for containing a pressurized fluid in the vapor state, which anti-convection zone is interposed between the compacting bag and a semi-permeable wall, which wall is impermeable to the fluid in the liquid state but is permeable thereto in the vapor state. Also provided is a supply zone for receiving the fluid in the liquid state, which supply zone is located on a side of the semi-permeable wall located opposite the anti-convection zone.
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Bushey Charles S.
Societe Nationale Industrielle et Aerospatiale
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