Hot compacting device for the production of parts requiring simu

Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including both heating and cooling means

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Details

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.

REFERENCES:
patent: 3353219 (1967-11-01), Snyder
patent: 3431331 (1969-03-01), Pincus et al.
patent: 4623419 (1986-11-01), Price
patent: 4880688 (1989-11-01), Kromrey
patent: 4954209 (1990-09-01), Baron
patent: 4983345 (1991-01-01), Kromrey
patent: 5009687 (1991-04-01), Kromrey
patent: 5084219 (1992-01-01), Sigur

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