Hollow reinforced fiber structure formed by resin transfer moldi

Details Hollow reinforced fiber structure formed by resin transfer moldi Hollow reinforced fiber structure formed by resin transfer moldi

1987-06-04

1989-02-28

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264 405, 264102, 264314, 2643287, 425417, B29C 4318

Patent

active

048083623

ABSTRACT:
A method of forming a hollow reinforced fiber structure includes the steps of providing fiber reinforced material around a flexible expandable member and placing the resulting package inside of a mold which includes inner surfaces conforming to the shape of the structure being formed. A second expandable means is included in the mold on both sides of the package. After the mold is closed, pressure is applied to force the second expandable means against the fiber reinforced material. Resin is injected into the fiber reinforced material. The pressure is then decreased in the second expandable means as inflatable member is expanded to force the fiber material to conform to the inner surfaces of the mold. The fiber material is then cured to form the structure.

REFERENCES:
patent: 2711985 (1955-06-01), Olson
patent: 2975476 (1961-03-01), Burke
patent: 3135640 (1964-06-01), Kepka
patent: 3879160 (1975-04-01), Miller
patent: 4123494 (1978-10-01), Evrand et al.
patent: 4148597 (1979-04-01), Larson
patent: 4312829 (1982-01-01), Fourcher
patent: 4647327 (1987-03-01), Rose

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