Process and apparatus for autoclave resin transfer molding

Details Process and apparatus for autoclave resin transfer molding Process and apparatus for autoclave resin transfer molding

1994-02-14

1995-08-15

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including use of vacuum

264257, 4251291, 425389, B29C 7048

Patent

active

054416922

ABSTRACT:
A resin transfer molding process and system for creating composite materials. The system includes encapsulating a fibrous sheet within a tool and a cover plate that together define an inner cavity. The tool, the cover plate and the sheet are placed within the inner chamber of an autoclave. The pressure in the inner cavity is then reduced to create a vacuum within the tooling. The pressure of the inner chamber of the autoclave is also reduced so that the differential pressure across the tool is essentially zero. A resin is then introduced to the inner cavity. The inner cavity pressure may be increased by the introduction of the resin. The pressure of the autoclave inner chamber may be raised, so that there is a minimal pressure differential across the tool. After the tool is filled with resin, the inner cavity is heated by the autoclave to cure and form a composite material.

REFERENCES:
patent: 4030953 (1977-06-01), Rutschow et al.
patent: 4132755 (1979-01-01), Johnson
patent: 4952366 (1990-08-01), Gelin
patent: 5114637 (1992-05-01), Williams et al.
patent: 5152949 (1992-10-01), Leoni et al.
patent: 5183619 (1993-02-01), Tolton
patent: 5281388 (1994-01-01), Palmer et al.

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