Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Chamber enclosing work during bonding and/or assembly
Patent
1989-03-23
1991-08-13
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Chamber enclosing work during bonding and/or assembly
156285, 156286, 1565831, 264511, 264102, 425388, B32B 3120
Patent
active
050393715
ABSTRACT:
An apparatus for consolidating sheets (13) of continuous graphite fiber in a thermoplastic matrix resin uses a roller (10) in conjunction with a heating surface (16) and a vacuum bag (12). A tack-welded stack of composite sheets (13) or prepreg is assembled onto a frame support structure (27) and placed into the vacuum bag (12) as an assembly (28) which is placed on a heated surface (16) whereby its temperature is elevated above the melting point of the matrix resin in the composite sheets (13). The roller (10) rolls over the bag (12) with the sheets (13) therein whereby any remaining air and gas between the sheets (13) is forced out ahead of the roller (10). After the roller (10) has passed, atmospheric pressure on the vacuum bag (12) is sufficient to prevent spontaneous delamination of the hot laminated panel formed by the sheets (13). The assembly (28) may then be moved to a cooling table (26) to complete the laminate consolidation process.
REFERENCES:
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patent: 4731151 (1988-03-01), Kaller et al.
Cremens Walter S.
Ferrer Emilio
Ball Michael W.
Barton Robert P.
Lockheed Corporation
Yoder Michele K.
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