Reinforced thermoplastic molding technique method and apparatus

Details Reinforced thermoplastic molding technique method and apparatus Reinforced thermoplastic molding technique method and apparatus

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B29B 13/00 (2006.01) B29B 11/16 (2006.01) B29B 13/02 (2006.01) B29B 13/04 (2006.01) B29C 70/04 (2006.01) B29C 70/30 (2006.01) B29C 70/46 (2006.01) B29C 70/54 (2006.01) D21J 7/00 (2006.01) B29C 35/04 (2006.01) B29C 35/16 (2006.01)

Patent

CA 2176416

A method and apparatus for binding the fibers of, and forming a fiber reinforced plastic structure. A fiber reinforced plastic preform is created by depositing a mixture of reinforcing fibers, binding fibers and resin matrix fibers on a screen having a preselected geometry. The fiber reinforced plastic preform is exposed to high temperature fluid causing the binding fibers to melt and, thereafter, to cool air to temporarily bind the preform in a tackified state. The tackified preform is exposed to a higher temperature fluid causing the resin matrix fibers to melt and, thereafter, to cool air to solidify and thus bind and lock the reinforcing fibers of the tackified preform in place to create a homogeneous fiber reinforced plastic structure.

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