METHOD FOR MANUFACTURING A WIND TURBINE BLADE AND MOLD FOR MANUFACTURING A WIND TURBINE BLADE

• Main Authors: HARBOE, Niels, OLESEN, Bendt, OOSTEROM, Samuel Robert Van, POULSEN, Peter Møller
• Format: Patent
• Language: English; French; German
• Published: 21.12.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; 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

A method for manufacturing a wind turbine blade (3), comprising the steps of:- arranging (S2, S2') an upper mold (10, 10') on a lower mold (9, 9'), wherein a dry fiber lay-up (11, 11') is arranged in the upper mold (10, 10') or in the upper mold (10, 10') and the lower mold (9, 9'),- applying (S3, S3') vacuum to a space (15, 15') between the upper and lower molds (10, 10', 9, 9'), and- infusing (S5, S8) the dry fiber lay-up (11, 11') in the upper and/or lower molds (10, 10', 9, 9') with resin (17), wherein the resin (17) is at least partially provided (S4, S7') through at least one upper resin inlet (16, 16', 37, 38) arranged at an upper portion (29, 29') of the upper mold (10, 10').Having the at least one upper resin inlet of the upper mold allows to improve the vacuum-assisted resin infusion. For example, resin provided through the at least one upper resin inlet has to be raised by a smaller height to reach the top of the mold. For example, a resin flow of the resin provided through the at least one upper resin inlet is supported in a downward direction by the gravitational force.