公开(公告)号：EP3885112A1

公开(公告)日：2021-09-29

申请号：EP20166192.3

申请日：2020-03-27

申请人： Siemens Gamesa Renewable Energy A/S

发明人： Olesen, Bendt ,  Harboe, Niels ,  Poulsen, Peter Møller ,  Van Oosterom, Samuel Robert

IPC分类号： B29C70/44 ,  B29D99/00 ,  B29C33/00 ,  B29C70/48 ,  B29C70/54 ,  B29C35/02 ,  B29L31/08

摘要： 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.