Verfahren zum Herstellen textiler Vorformlinge aus textilen Halbzeugen

EP 1473131 A UPAB: 20041208 NOVELTY - Numbers of individual textile blanks (4) are assembled in a compaction stage. A highly-compact component (5) is produced, in a shape close to its final form. This is saturated with an adhesive resin. It is hardened at raised temperature under increased pressure. DETAILED DESCRIPTION - Numbers of individual textile blanks (4) are assembled in a compaction stage. A highly-compact component (5) is produced, in a shape close to its final form. This is saturated with an adhesive resin. It is hardened at raised temperature under increased pressure. The blanks are matched with each other and for the final product geometry. A mold (1) is employed for vacuum compaction, which is carried out in a heating oven or other heating unit. Upper and lower mold dies (2, 3) are used, arranging the preforms between them. Their molding faces (6, 7) match the final geometry of the component produced. Centering pins (8) are included between these faces. All parts of the compaction mold are placed inside a vacuum bag (9). Application of reduced pressure applies pressure to the mold halves. An INDEPENDENT CLAIM is included for the corresponding molding equipment. USE - To make e.g. fiber-reinforced plastic window frame composite preforms for aircraft from textile blanks. ADVANTAGE - The quality of the e.g. fiber-reinforced window frame produced for passenger aircraft, is sufficient to replace a forged aluminum frame previously employed. Vacuum assisted compaction may if necessary, be supplemented by application of force from flexible pressure tubes