The invention pertains to a filler preform in a wedge form (1) comprising reinforcing fiber bundles (2) consisting of reinforcing fiber filaments, wherein the filaments are directed parallel to each other within the fiber bundle, wherein the fiber bundle contains a first resin composition in a concentration in the range from 1 to 10 wt.% relative to the fiber weight, wherein the fiber bundles (21) have a length in the range from 2 to 20 mm and at least 60 % of the fiber bundles (21) are reversibly fixed in a curved form within the wedge filler preform (1) whereby flanks (8", 9") of the curved fiber bundles (21) create an opening angle of less than 120° and the opening angle of the curved fiber bundles (21) relates with an opening angle of the wedge form of the wedge filler preform (1).
Wedge filler preform
2021-11-11
Patent
Elektronische Ressource
Englisch
IPC: | B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B64C AEROPLANES , Flugzeuge |
NTIS | 1992
|NTIS | 1992
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