PULTRUSION METHODS AND ARRANGEMENTS FOR MANUFACTURING A FIBRE-REINFORCED COMPOSITE PRODUCT

• Main Authors: Garthaus, Christian, Hufenbach, Werner, Lenz, Florian, Behnisch, Thomas, Witschel, Bernhard
• Format: Patent
• Language: English; French; German
• Published: 14.04.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Pultrusion methods and arrangements for manufacturing a fibre-reinforced composite product comprising reinforcing fibres embedded in a thermoplastic matrix material are proposed. When carrying out the method, the following is performed along a path of pultrusion (4): providing a preform (19); further downstream, introducing the preform into a first die (55) and pre-compacting the preform by means of the first die while the preform passes through the first die; further downstream, heating the pre-compacted preform (21) to a processing temperature of the thermoplastic matrix material; and further downstream, introducing the preform (39) into a second die (66) and consolidating the preform by means of the second die while the preform passes through the second die. Furthermore, arrangements for manufacturing a fibre-reinforced composite product are proposed.