Method for the controlled curing of composites

Details Method for the controlled curing of composites Method for the controlled curing of composites

1986-10-28

1989-03-28

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156289, 264102, 264510, B32B 3100

Patent

active

048161063

ABSTRACT:
A composite structure is prepared in a mold using an elastic diaphragm which allows the application of a uniformly distributed pressure during a curing cycle. The elastic diaphragm seals a resin impregnated lay-up throughout the curing cycle during which the lay-up is heated and compressed, and ensures a constant resin-to-reinforcement ratio by preventing the escape of resin from the lay-up as the viscosity of the resin is lowered during the initial stages of the curing cycle. In instances where entrapped air or volatile removal from the lay-up is necessary, a separate step including the application of a vacuum and/or heat to the lay-up can be performed prior to the final curing cycle.

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Newsam, S. M., "Vacuum Molding of . . . Reinforced Composite Components", S.A.M.P.E. Public, (London-1983), Aug. 8, 1983, pp. 26 (1)-(17).

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