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公开(公告)号：EP4378673A1
公开(公告)日：2024-06-05
申请号：EP22210810.2
申请日：2022-12-01
IPC分类号： B29C70/54 , B29C70/02 , B29C70/08 , B29C70/22 , B29C70/44 , B29C70/88 , B32B5/02 , B32B5/12 , B32B5/26 , D03D9/00 , F03D1/06 , B29L31/08
CPC分类号： B29C70/547 , B29C70/026 , B29C70/086 , B29C70/22 , B29C70/443 , F03D1/0675 , B29L2031/08520130101 , B32B5/028 , B32B5/26 , B32B5/12 , B29C70/885 , F05B2280/600320130101
摘要： Distribution mesh (20) for fabricating a composite element, wherein the distribution mesh (20) comprises a distribution material (21) comprising at least one epoxy-compatible and/or a group reactive towards epoxy group.
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公开(公告)号：EP3838576A1
公开(公告)日：2021-06-23
申请号：EP19218082.6
申请日：2019-12-19
发明人： Olesen, Bendt , Truong, Yannick Cao van , Colfelt, Christian Nicholas Sebber , Pedersen, Dan , Thomsen, Anders Haslund
IPC分类号： B29D99/00 , B29C70/48 , B29C70/44 , B29C70/86 , F03D1/06 , B29C70/34 , B29C33/50 , B29L31/08
摘要： A method for manufacturing a wind turbine blade, comprising the steps of:
- arranging an upper mould (8) comprising a pre-casted fibre lay-up (9") on a lower mould (23) comprising a dry fibre lay-up (24') and a mould core (46),
- applying vacuum to a space (63) between the upper and lower moulds (8, 23) and the mould core (46),
- infusing at least the dry fibre lay-up (24') and a connection region (66, 67) between the dry fibre lay-up (24') and the pre-casted fibre lay-up (9") with a resin (65), and curing the resin (65).
By having the pre-casted fibre lay-up in the upper mould, the packing and positioning of dry composite materials on top of the mould core is avoided.-
3.发明公开
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
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.-
4.发明公开
公开(公告)号：EP3928965A1
公开(公告)日：2021-12-29
申请号：EP20182222.8
申请日：2020-06-25
摘要： Method for fabricating a member in a resin-infusion-based casting process, in which at least one component (7) forming the member is infused with a resin, comprising the steps:
- Providing a mold (1), the at least one component (7), the resin, at least one measurement device (5) and at least one sensing device (4), wherein the sensing device (4) has at least one property which changes measurably with temperature and/or when the sensing device (4, 10) comes into contact with the resin,
- attaching the at least one sensing device (4) to an inner surface (6) of the mold (1) and/or to the component (7),
- arranging the component (7) inside the mold,
- providing the resin to at least one inlet (17) of the mold (1), and
- wirelessly measuring and evaluating the property of the sensing device (4) with the measurement device (5) for monitoring a temperature and/or a distribution of the resin in the mold (1) and/or in the component (6).
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