Joern, P.P.JoernHerrmann, A.S.A.S.Herrmann2022-03-082022-03-082005https://publica.fraunhofer.de/handle/publica/307006Die vorliegende Erfindung bezieht sich auf eine Vorrichtung und ein Verfahren zur Aktivierung eines Binders auf einem Kohlenstofffasern enthaltenden Faserhalbzeug bzw. auf einem Preforms (1). Der Binder wird auf das Faserhalbzeug bzw. den Faservorformling aufgebracht und anschliessend durch Erhoehung der Temperatur aktiviert, indem durch die Kohlenstofffasern des Preforms (1) ein elektrischer Strom geleitet wird.US2005140064 A UPAB: 20050805 NOVELTY - Fiber preform setting apparatus for setting a fiber preform, comprises a fiber preform shaping apparatus for setting a fiber preform (1) made of a dry semi-finished fiber material comprising carbon fibers; and at least 2 electrodes (2a, 2b) integrated into or disposed on the fiber preform shaping apparatus to apply a voltage to at least one part of the carbon fibers of the fiber preform. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a method for fixating a fiber preform, comprising molding a dry semi-finished fiber material comprising carbon fibers into a fiber preform of desired shapes; subsequently or previously applying a binder substance to the semi-finished fiber material or the fiber preform; bonding the binder substance with the semi-finished fiber material or the fiber preform; and activating the binder substance by increasing the temperature of the fiber preform and the binder substance, where an electrical current is conducted through at least one part of the carbon fibers to increase the temperature of the fiber preform; and (2) a manufacturing process for composite components to produce carbon fiber reinforced composite components from semi-finished fiber materials comprising carbon fibers, comprising molding the semi-finished fiber materials into fiber preforms of the desired shape, setting the fiber preforms, adding a matrix to the fixated fiber preforms, and subsequently curing the saturated fiber preforms, where the fiber preforms are set with the aid of the apparatus as above. USE - For setting a fiber preform (claimed) useful for making carbon fiber reinforced composites. ADVANTAGE - The inventive fiber preform setting apparatus that accomplishes the activation of the binder in the fiber preform in a substantially reduced amount of time and cycle frequency.de608620660671patent2003-10353070