Advanced Composites Group Limited

Roger Mark Sloman

A pressure transmitter for use in the curing of composite components may take the form of a caul plate, pressure intensifier or vacuum bag and is formed from a curable elastomeric material which is partially cured, normally when supported on a mould, at a temperature not exceeding 100&deg; C. It is subsequently further cured at, for example 175&deg; C., while unsupported. It may incorporate a reinforcing layer formed from a curable resin pre-impregnated fibrous material.

Pressure transmitters for use in the production of composite components

A pressure transmitter for use in the curing of composite components may take the form of a caul plate, pressure intensifier or vacuum bag and is formed from a curable elastomeric material which is partially cured, normally when supported on a mold, at a temperature not exceeding 100&deg; C. It is subsequently further cured at, for example 175&deg; C., while unsupported. It may incorporate a reinforcing layer formed from a curable resin pre-impregnated fibrous material.

A method of molding a composite material which includes a fiber reinforcement within a resin comprises laying alternately on a mold first and second layers of fiber material pre-impregnated with uncured resin, where the resin content of the first layer is different from that of the second layer and the combination of layers gives the desired overall total volume fraction of fibers and resin in the laminate, enclosing the layers within an impervious membrane, evacuating the membrane and applying heat to the layers to flow gellate and at least partially cure the resin and during the process to allow released gasses and vapors to flow along the layers of lower resin content towards the membrane for subsequent evaluation.

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Ilkeston, United Kingdom

Roger Mark Sloman