Method for manufacturing a wind turbine blade and wind turbine blade

A method for manufacturing a wind turbine blade, comprising the steps of: - arranging (S2, S3) a joining portion (8) comprising a fibre lay-up inside adjacent blade sections, - covering (S4) the joining portion (8) and the adjacent blade sections at least partially with a vacuum bag, and - applying...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHIESURA, GABRIELE, KRISTENSEN, JENS JORGEN OSTERGAARD, HURUP, ALLAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PRODUCING MECHANICAL POWER SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method for manufacturing a wind turbine blade, comprising the steps of: - arranging (S2, S3) a joining portion (8) comprising a fibre lay-up inside adjacent blade sections, - covering (S4) the joining portion (8) and the adjacent blade sections at least partially with a vacuum bag, and - applying vacuum to a space (54) covered by the vacuum bag (19, 38), infusing at least the fibre lay-up (12, 13, 14, 15, 16, 17) with a resin (43) and curing (S5) the resin (43) to obtain a cured joining portion (44) joining the blade sections (20, 24) inside. A light-weight and at the same time strong blade section joint is provided. In particular, the strength of this laminate joint formed by vacuum infusion is comparable to the strength of the pristine laminate. Compared to a connection using an adhesive, the laminate joint formed by vacuum infusion provides a lighter and stronger blade section joint, in particular, a better weight-to-strength performance.