Method for producing preforms from fiber composites as well...

C - Chemistry – Metallurgy – 08 – J

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C08J 5/04 (2006.01) B29B 15/10 (2006.01) B29C 70/16 (2006.01) B29C 70/30 (2006.01) B29C 70/34 (2006.01) B29C 70/42 (2006.01) B29C 70/46 (2006.01) B29C 70/54 (2006.01)

Patent

CA 2358945

Method for producing preforms from fiber composite semi- finished products and polymer eo as to use them as components after the curing process, wherein initially on a working surface (60) a bonded fabric is formed by alternately placing layers of cut dry fiber composite semi-finished product sections and polymer layers with a predetermined shape on top of each other and wherein a specified preform (1) is formed from the bonded fabric (3) by forming the appropriate parts (A, B, C, D) of this fabric and subsequently curing them, wherein the polymer layers exhibit a shape that ensures a bonding of cut semi-finished product sections in their overlapping areas, and wherein the polymer layers contain local recesses in order to minimize shearing stress between the semi-finished product layers in the area of the local recesses when forming the individual profile parts (A, B, C, D) of the bonded fabric, as well as a preform that has been produced pursuant to this method.

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