CN105848860A - 风轮机叶片 - Google Patents
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Abstract
一种用于制造风轮机叶片的细长加强结构用的条带的拉挤成型工艺,该工艺包括:沿工艺方向牵拉纤维(42)与树脂穿过拉挤成型模(40)而形成条带(102);并且在所述工艺方向上在所述模的下游将灌注促进层(110)施加至所述条带的表面。本发明还公开了一种拉挤成型设备。
Description
技术领域
本发明总体涉及用于风轮机的转子叶片,并且涉及制造风轮机叶片的方法。更具体地说,本发明涉及这样的风轮机叶片,该风轮机叶片包括整合到壳的结构中的一叠承重加强条带,并且本发明涉及制造这样的叶片的方法。
背景技术
图1是风轮机转子叶片10的剖面图。叶片具有外壳11,该外壳由两个半壳(迎风壳11a与背风壳11b)制造成。所述壳由玻璃纤维加强塑料(GRP)模制成。外壳11的一部分属于夹层板构造,并且包括轻质泡沫(例如聚氨酯)芯12,该芯夹在内GRP层或者“蒙皮”13与外GRP层或者“蒙皮”14之间。
叶片10包括第一对翼梁帽15a与15b以及第二对翼梁帽16a与16b。各对翼梁帽15a与15b、16a与16b布置在外壳11的夹层板区域12之间。每对中的一个翼梁帽15a、16a与迎风壳11a整合在一起并且每对中的另一个翼梁帽15b、16b与背风壳11b整合在一起。各对中的翼梁帽相互对置并且沿叶片10的长度纵向延伸。
第一纵向延伸的抗剪腹板17a桥接第一对翼梁帽15a与15b,并且第二纵向延伸的抗剪腹板17b桥接第二对翼梁帽16a与16b。与第一对翼梁帽15a与15b和第二对翼梁帽16a与16b结合的抗剪腹板17a和17b形成一对I形梁结构,这对I形梁结构将负载从旋转的叶片10有效地传递至风轮机的轮毂。翼梁帽15a和15b以及16a和16b特别传递拉伸和压缩的弯曲负载,而抗剪腹板17a和17b传递叶片10中的剪应力。
每个翼梁帽15a和15b以及16a和16b均具有大体矩形截面,并且由一叠预制的加强条带18构成。条带18是碳纤维加强塑料(CFRP)的拉挤成型条带,并且基本是平坦的,而且具有矩形截面。成叠的条带18的数量取决于条带18的厚度以及壳11的所需厚度,但是通常条带18均具有几毫米的厚度,并且通常在成叠的条带中会有四至十二个条带。这些条带具有高拉伸强度,并因此具有高承重能力。
外壳11的结构内的翼梁帽15a和15b以及16a和16b的整合避免了对诸如加强梁之类的单独的翼梁帽的需求,在一些传统的风轮机叶片中,所述的单独的翼梁帽通常结合至壳的内表面。EP 1 520 983、WO 2006/082479、GB 2497578以及WO2013/087078中描述了具有与壳整合的翼梁帽的转子叶片的其他实施例。
利用树脂灌注(RI)工艺,借此将壳11的多个层压层铺叠在模具腔中,密封此腔,然后对腔施加真空,从而制成图1中所示的转子叶片10。然后将树脂引入到腔中,真空压力使树脂在层压层上绕层压层流动并灌注到位于层之间的间隙空间中。为了完成此工艺,使树脂灌注的铺叠体固化以使树脂***并将多个层压层结合在一起而形成叶片10。
如上所述的拉挤成型的加强条带18往往具有相对光滑且平坦的外表面,这是拉挤成型工艺的特征。因此,当这些条带上下堆叠在模具中时,条带18之间有非常小的间隙空间。通常,条带之间的间距在约0.1至0.3mm之间。此缺少空间的现象使得难以在条带18之间灌注树脂,并会在堆叠中的相邻条带18之间形成不良结合。如果条带18未恰当地结合在一起,那么叶片结构中有发生脱层的风险,在使用过程中这会导致叶片10故障。此问题不限于拉挤成型条带18,而是在有其他类型的具有平滑外表面的加强条带堆叠时可能存在此问题。
如图2中所示,用于获得更适于结合的表面的一种公知方法是在拉挤成型的加强条带18的上下表面上提供“剥离片”层38,此“剥离片”层可以被移除而形成带纹理的表面,该表面包括不规则布置的峰与谷。带纹理的表面提供位于堆叠的条带18之间的界面处的空间,从而例如通过毛细管作用使得能够更容易在条带18之间灌注树脂。
这样的剥离片38由紧密编织的织物(通常为聚酰胺)制成,此紧密编织的织物涂覆有脱模剂。紧密编织的织物与脱模剂防止剥离片结合至所述条带中的树脂,使得能够容易移除剥离片。
如图3中所示,在拉挤成型过程中,将剥离片38施加至条带18。剥离片38与待形成条带18的纤维42以及树脂一起被牵拉通过模40。然后使条带18固化。移除剥离片38时,一层固化树脂被从条带18的表面移除,从而提供带纹理的表面。
尽管剥离片层38的使用有助于树脂灌注,但是存在与剥离片层38的使用相关联的一些问题。必须在条带18铺放于模具中之前用手从每个条带18移除剥离片层38,这不方便而且费时,延长了制造过程。
而且,因为移除剥离片层38后留下的表面是粗糙且不规则的,所以条带18之间的接触同样地不规则。此接触可以是峰对峰(即,位于堆叠中的相邻条带18的带纹理的表面上的峰之间),这使条带18进一步隔开而提供相对大的间隙空间,在此间隙空间中树脂相对容易流动;或者此接触可以是峰对谷(即,位于堆叠中一个条带的表面上的峰与相邻的条带18的表面上的谷之间),这将条带18更紧密地保持在一起,从而提供相对少量的间隙空间,在此间隙空间中树脂流动相对较慢。因此,间隙空间的量并因此树脂流动速率横过条带18变化,这会致使空气截留在条带18之间,从而弱化条带18之间的结合。
本发明的目的是缓解或者克服现有技术中的至少一种问题。
发明内容
以此为背景,根据第一方面,本发明涉及用于制造风轮机叶片的细长加强结构用的条带的拉挤成型工艺,该工艺包括:沿工艺方向牵拉纤维与树脂穿过拉挤成型模而形成条带;并且在所述工艺方向上在所述模的下游将灌注促进层施加至所述条带的表面。
因此,根据本发明的所述拉挤成型工艺制成的条带具有施加至至少一个表面的灌注促进层。当多个条带上下堆叠形成细长加强结构时,此灌注促进层布置在堆叠中相邻的条带之间。树脂能够容易地在灌注促进层内灌注,并因此能够容易在堆叠中相邻的条带之间灌注。这减小了条带之间形成气穴的可能性,否则气穴会引发裂缝。因此,与结合传统条带的细长加强结构相比,结合根据本发明的拉挤成型工艺制成的条带的细长加强结构能承受更大的负载。
拉挤成型工艺可以包括将灌注促进层结合至条带的表面。
为了在无需粘合剂的情况下将灌注促进层结合至条带的表面,拉挤成型工艺可以包括:在条带处于未固化或者半固化状态时,将灌注促进层施加至条带的表面并使条带固化以将灌注促进层结合至条带的表面。
另选的是,所述工艺可以包括在将灌注促进层施加至条带的表面之前使条带固化。在此情况下,可以在使条带固化后并且施加灌注促进层之前将粘合剂层施加至条带的表面。为了达到粘合剂层的薄且均匀分布,所述工艺可以包括将粘合剂层喷涂到条带的表面上。
灌注促进层可以是诸如玻璃纤维层之类的纤维层。纤维层尤其有利,因为纤维结构提供位于层中的间隙,借助这些间隙,树脂能够特别容易灌注。为了提供足够大的间隙,灌注促进层可以具有在约100克每平方米与约300克每平方米之间的纤维密度。
拉挤成型工艺可以包括将灌注促进层施加至拉挤成型条带的上表面或者下表面。以此方式,每个条带仅需要使用一个灌注促进层,并且当多个条带堆叠在一起时,单个灌注促进层布置在相邻的条带之间以促进树脂灌注。
拉挤成型工艺可以包括将第一灌注促进层施加至拉挤成型条带的上表面,并且将第二灌注促进层施加至拉挤成型条带的下表面。以此方式,当多个条带堆叠在一起时,两个灌注促进层布置在相邻的条带之间以进一步促进树脂灌注。
所述条带可以具有在约2米至约1000米之间的长度。具体地说,所述条带可以具有在约10米至约150米之间的长度,并且在优选实施方式中,所述条带可以具有在约10米至约80米之间的长度。此长度可以由结合此条带的细长加强结构的长度决定,或者此长度可以由例如细长加强结构的制造工艺决定。
根据另一方面,本发明涉及一种用于制造风轮机叶片的细长加强结构用的条带的拉挤成型设备,该拉挤成型设备包括:拉挤成型模;用于沿工艺方向将纤维与树脂牵拉穿过所述拉挤成型模以形成条带的牵拉装置;以及用于将灌注促进层施加至所述条带的表面的施加站;其中,所述施加站与所述拉挤成型模布置成一行并且在所述工艺方向上布置在所述拉挤成型模的下游。
施加站可以包括用于将灌注促进层施加条带的表面的辊。该辊提供一种用于使施加灌注促进材料机械化的机构,从而减少对人工输入的需求。辊还可以用以像压力施加至条带那样向灌注促进材料施加压力。
拉挤成型设备可以包括粘合剂站,该粘合剂站构造成将粘合剂层施加至条带的表面。粘合剂站可以与拉挤成型模布置成一行并且布置在拉挤成型模与施加站之间。粘合剂站提供了一种用于使粘合剂施加过程机械化的机构,从而减少对人工输入的需求。
特别是为了快速且均一地施加粘合剂,粘合剂站可以构造成将粘合剂层喷涂到条带的表面上。
拉挤成型设备可以包括用于固化条带的加热装置。加热装置可以在工艺方向上布置在粘合剂站的上游。以此方式,可以使条带固化并且可以在持续的过程中将粘合剂施加至条带。
拉挤成型设备可以包括第一施加站与第二施加站,第一施加站与第二施加站布置在条带的相对两侧上并且分别构造成将相应的灌注促进层施加至条带的相应的上表面与下表面。
本发明还延及一种根据上文所述的拉挤成型工艺或者利用上文所述的拉挤成型设备制成的条带。
本发明还延及一种风轮机叶片用的细长加强结构,该细长加强结构包括根据上文所述的拉挤成型工艺或者利用上文所述的拉挤成型设备制成的条带。
根据另一方面,本发明涉及一种制造风轮机叶片用的细长加强结构的方法,该方法包括:提供根据上文所述的拉挤成型工艺或者利用上文所述的拉挤成型设备制成的多个条带;通过将所述多个条带堆叠在模具中而形成层压体;穿过层压体灌注树脂;并且使树脂固化以形成细长加强结构。
本发明延及一种根据上述方法制成的风轮机叶片用的细长加强结构,延及一种包括这样的细长加强结构的风轮机叶片,并且延及一种包括这样的风轮机叶片的风轮机。
附图说明
已经参照了附图中的图1至图3。为了能够更容易理解本发明,现在将借助实施例参照附图中的其他附图,在附图中:
图4a与图4b分别是用于根据本发明的一方面的风轮机叶片的细长加强结构的根据本发明的一个实施方式的条带的立体图与前视图;
图5是由多个相似条带堆叠布置的图4的条带的前视图;
图6是位于图5的堆叠中的两个条带之间的灌注区域的放大前视图;
图7是根据本发明的另一实施方式的制造图4a与图4b的条带的方法的示意图;
图8是制造图4a与图4b的条带的另一方法的示意图;
图9是用于风轮机叶片的细长加强结构的根据本发明的另一个实施方式的条带的前视图;
图10是当条带堆叠布置时形成在图9的条带与另一条带之间的灌注区域的放大前视图;
图11是根据本发明的另一实施方式的制造图9的条带的方法的示意图;以及
图12是制造图9的条带的另一方法的示意图。
具体实施方式
图4a与图4b示出了用于风轮机叶片用的细长加强结构的条带100。在所述的实施方式中,细长加强结构是与关于图1的以上描述相似的翼梁帽。
条带100是纤维加强聚合材料的拉挤成型条带102,此条带在相对的两端104之间纵向延伸。拉挤成型条带102包括侧面103以及上表面106和下表面108。上表面106与下表面108中的每一者均设置有灌注促进层110,此灌注促进层结合至相应的上表面106与下表面108。
灌注促进层110覆盖拉挤成型条带102的整个上表面106与下表面108。特别地,灌注促进层108沿纵向方向在条带102的端部104之间连续延伸,并且沿横向方向在条带110的侧面103之间连续延伸。
如图5中所示,为了将条带100整合至翼梁帽,多个条带100在模具(未示出)中上下堆叠而形成一个堆叠112。在堆叠112中一个条带100的上表面106面对相邻条带100的下表面108,这样堆叠条带100。以此方式,相邻条带100的灌注促进层110的外表面113相互接触。相邻的灌注促进层110一起形成位于每对相邻条带100之间的灌注区114。
一旦条带100布置成堆叠112,就将树脂添入至堆叠112。树脂绕堆叠112渗入,并且还经由条带100之间的灌注区114在堆叠112中的条带110之间渗入。
图6更详细地示出了灌注促进层110与灌注区114,并且展示出灌注促进层是具有相对松散的编织物的纤维层。
在所示的实施方式中,灌注促进层110是玻璃纤维材料层,具体地说是密度为200克每平方米(gsm)的Hexcel编织玻璃纤维织物层。
玻璃纤维材料的纤维密度相对低,例如在约100与约300gsm之间。特别地,玻璃纤维材料的纤维密度足够低使得树脂能够相对容易地在玻璃纤维之间灌注,从而玻璃纤维材料层增进树脂流动。而且,纤维密度足够低到使得玻璃纤维材料能够结合至拉挤成型条带102的表面106、108。
灌注促进层110有内表面111与外表面113。内表面111例如借助粘合剂层116结合至拉挤成型条带102的上表面106与下表面108。外表面113形成条带100的外部表面。外表面113因灌注促进层110的织物性质而带有纹理。当条带100上下叠置时,此带纹理的表面用以使条带100间隔开,从而增大条带10之间的间隙空间的尺寸并且进一步促进树脂在条带100之间流动。
粘合剂层116不完全浸入灌注促进层110,而是仅保留在灌注促进层110的最接近拉挤成型条带102的区域中。以此方式,灌注促进层110的纤维之间的空间不被粘合剂堵塞,而是开放的以接纳灌注的树脂。换而言之,与剥离片层相比,灌注促进层是干燥纤维并且未灌注有树脂。
而且,灌注促进层110的相对松散的编织物提供位于编织物的纤维之间的相当大的空间,使得树脂能够在灌注促进层110内易于灌注,因此能够容易灌注穿过相邻条带100之间的灌注区114。
图6还展示出了间隙空间118位于邻接的灌注促进层110之间。间隙空间118相当大,这使得树脂能够在条带100之间相当快地流动。
灌注促进层110中的纤维编织物在整个灌注促进层110中是均一的,这意味着树脂流动速率相当均一。均一的编织物还意味由编织物提供的峰与谷布置规则,使得整个条带100中的间隙空间118基本均一。这进一步有助于确保树脂流动速率均一。因此,整个灌注区114中的树脂流动速率均一,使得当将树脂添入到条带100之间时,树脂能更容易渗透整个灌注区114,从而减小在条带100之间形成气穴的可能性。
在树脂灌注到堆叠112中的条带100之间及其周围后,通过加热模具而使树脂固化,从而彻底形成翼梁帽。灌注促进层110因而作为位于堆叠112中每对相邻的拉挤成型条带102之间的结构元件而整合到完成的翼梁帽中。这与在堆叠条带之前被从条带的表面移除的剥离片形成对比。
现在参照图7,上述条带100通过利用拉挤成型设备300的拉挤成型工艺制成。浸渍树脂的纤维42沿工艺方向P被牵拉穿过标准拉挤成型模40而形成拉挤成型条带102。然后,拉挤成型条带102进入固化炉44,拉挤成型条带102在此处被加热以使树脂固化。
固化炉44的下游是粘合剂施加站160。粘合剂施加站160包括两个粘合剂喷涂器162,一个布置在拉挤成型条带102上方,一个布置在拉挤成型条带102下方。粘合剂喷涂器162将诸如环氧树脂层之类的粘合剂层116(参见图6)喷涂到拉挤成型条带102的上表面106与下表面108。
粘合剂施加站160的下游是施加站150,该施加站将灌注促进层110施加至条带102的上表面106与下表面108。
施加站150包括两个辊***152,一个布置在拉挤成型条带102上方,一个布置在拉挤成型条带102下方。辊***152储存灌注促进层110并将层110分别施加至拉挤成型条带102的上表面106与下表面108。灌注促进层110借助粘合剂层116粘附至挤成型条带102的上表面106与下表面108。
一旦施加了灌注促进层110,最终的条带100就准备好用于制造翼梁帽或者准备好运输至制造设备或者储存设备。
图8中示出了利用另选的拉挤成型设备400制造条带100的另选的方法。在此方法中,浸渍树脂的纤维42以相同方式穿过拉挤成型模40而被拉挤成型,但是拉挤成型条带100随后直接移动至施加站150,此施加站与已经描述的层施加站150基本相同。
因为当施加灌注促进层110时拉挤成型条带102尚未固化,所以挤成型条带102的上表面106与下表面108是有粘性的。这使得灌注促进层110无需额外的粘合剂就能够粘附至上表面106与下表面108。
拉挤成型条带102中的树脂仅短距离渗入到灌注促进层110中,因此仅渗入到灌注促进层110的接近拉挤成型条带102的小区域中。这是因为缺乏真空,所以存在相当小的灌注树脂驱动力。因此,灌注促进层110的纤维不会被树脂浸透,纤维之间的空间保持开放以接纳随后的树脂灌注过程中的树脂。
在灌注促进层110施加至上表面106与下表面108的情况下,拉挤成型条带102移动至固化炉44,拉挤成型条带102在此处被加热以使树脂固化。当树脂固化时,灌注促进层110结合至拉挤成型条带102。一旦固化,那么条带100就准备好用在翼梁帽中。
在所述方法的另选变形中,在施加灌注促进层110之前条带可以是半固化的,从而确保上表面106与下表面108具有适于粘附的水平的粘性。
图9示出了用在风轮机叶片的细长加强结构中的另选的条带200。条带200与上述条带100相似,但在此实例中,灌注促进层110仅结合至拉挤成型条带102的上表面106,而下表面108暴露至周围环境。
如图10中所示,当条带200与其他相似的条带200堆叠时,灌注促进层110抵靠堆叠中相邻的条带200的下表面108。以此方式,以与以上描述相似的方式在堆叠中的条带200之间创建灌注区214。
图10更详细地示出了灌注区214。在此实例中,灌注区214包括单个灌注促进层110。在堆叠中的灌注促进层110与相邻的条带200的下表面108之间创建出间隙空间218。灌注区214增进树脂在条带200之间的灌注,并且如以上已经描述的那样基本均一地增进树脂灌注。
图11示出了用于制造具有单个灌注促进层110的条带200的设备500。设备500与以上已经描述的设备相似,但是该设备构造成仅将灌注促进层110结合至拉挤成型条带102的上表面106。
以已经描述的方式,浸渍树脂的纤维42被牵拉穿过拉挤成型模40而形成拉挤成型条带102。然后拉挤成型条带102被馈送至固化炉44进行固化。
接着,拉挤成型条带102被馈送至粘合剂施加站260。粘合剂施加站260包括布置在拉挤成型条带102的上方的粘合剂喷涂器162。粘合剂喷涂器162将诸如环氧树脂层之类的粘合剂层116(参见图6)喷涂到拉挤成型条带102的上表面106。
然后条带102被馈送至施加站250。施加站250包括布置在拉挤成型条带102上方的辊***152。辊***152承载灌注促进层110并且将层110施加至拉挤成型条带102的上表面106。如已经描述的,灌注促进层110借助粘合剂层116粘附至拉挤成型条带102的上表面106。
图12示出了用于制造具有单个灌注促进层110的条带200的另选设备600。在此设备600中,浸渍树脂的纤维42穿过拉挤成型模40被拉挤成型以形成拉挤成型条带102。
然后条带102被馈送至施加站250。施加站250包括布置在拉挤成型条带102上方的辊***152。辊***152承载灌注促进层110并且将层110施加至拉挤成型条带102的上表面106。如上文已经描述的,拉挤成型条带102的上表面106是有粘性的,使得灌注促进层110粘附至上表面106。因此,此方法避免了对特定粘合剂施加阶段的需求。
在灌注促进层110施加至其上表面106的情况下,拉挤成型条带102移动至固化炉44,拉挤成型条带102在此处被加热以使树脂固化,因而将灌注促进层110结合至拉挤成型条带102的上表面106。
尽管本实施方式中描述的灌注促进层是玻璃纤维材料层,但是要理解的是无需如此。灌注促进层可以是由诸如碳、玻璃、芳族聚酰胺、聚酯、尼龙之类的不同材料制成的纤维层。这些纤维层可以是编织物、单轴织物、多轴织物、绒头织物,或者这些纤维层可以是连续的单纤维。另选的是,灌注促进层可以是穿孔层或者多孔层。
在使用粘合剂层的实施方式中,粘合剂层无须是环氧层,而可以是任一适当的粘合剂。
通过堆叠条带并在模具中进行树脂灌注工艺而制成翼梁帽或者其他细长加强结构,然后可将产生的翼梁帽或者其他细长加强结构整合到叶片中。在其他实施方式中,可将条带直接堆叠在用于具有叶片的其他结构元件的叶片半体的模具中,并且可将树脂灌注工艺施加至整个叶片半体,使得翼梁帽同时形成并整合到叶片半体中。
因此,本发明不限于以上所述的示例性实施方式,本领域的普通技术人员会理解在不脱离本发明的由所附权利要求限定的范围的情况下的一些其他变更例或者变型例。
Claims (26)
1.一种用于制造风轮机叶片的细长加强结构用的条带的拉挤成型工艺,该工艺包括:
沿工艺方向牵拉纤维与树脂穿过拉挤成型模而形成条带;并且
在所述工艺方向上在所述模的下游将灌注促进层施加至所述条带的表面。
2.根据权利要求1所述的拉挤成型工艺,该工艺包括将所述灌注促进层结合至所述条带的所述表面。
3.根据权利要求2所述的拉挤成型工艺,该工艺包括在所述条带处于未固化或者半固化状态时将所述灌注促进层施加至所述条带的所述表面,并且使所述条带固化以将所述灌注促进层结合至所述条带的所述表面。
4.根据权利要求1或者2所述的拉挤成型工艺,该工艺包括在将所述灌注促进层施加至所述条带的所述表面之前使所述条带固化。
5.根据权利要求4所述的拉挤成型工艺,该工艺包括在使所述条带固化之后并且施加所述灌注促进层之前将粘合剂层施加至所述条带的所述表面。
6.根据权利要求5所述的拉挤成型工艺,该工艺包括将所述粘合剂层喷涂到所述条带的所述表面上。
7.根据前述权利要求中任一项所述的拉挤成型工艺,其中,所述灌注促进层是纤维层。
8.根据权利要求7所述的拉挤成型工艺,其中,所述灌注促进层是玻璃纤维层。
9.根据权利要求7或者8所述的拉挤成型工艺,其中,所述灌注促进层具有在约100克每平方米至约300克每平方米之间的纤维密度。
10.根据前述权利要求中任一项所述的拉挤成型工艺,该工艺包括将所述灌注促进层施加至拉挤成型的所述条带的上表面或者下表面。
11.根据前述权利要求中任一项所述的拉挤成型工艺,该工艺包括将第一灌注促进层施加至拉挤成型的所述条带的上表面,并且将第二灌注促进层施加至拉挤成型的所述条带的下表面。
12.根据前述权利要求中任一项所述的拉挤成型工艺,其中,所述条带具有在约2米至约1000米之间的长度。
13.根据权利要求12所述的拉挤成型工艺,其中,所述条带具有在约10米至约150米之间的长度。
14.根据权利要求13所述的拉挤成型工艺,其中,所述条带具有在约10米至约80米之间的长度。
15.一种用于制造风轮机叶片的细长加强结构用的条带的拉挤成型设备,该拉挤成型设备包括:
拉挤成型模;
用于沿工艺方向将纤维与树脂牵拉穿过所述拉挤成型模以形成条带的牵拉装置;以及
用于将灌注促进层施加至所述条带的表面的施加站;
其中,所述施加站与所述拉挤成型模布置成一行并且在所述工艺方向上布置在所述拉挤成型模的下游。
16.根据权利要求15所述的拉挤成型设备,其中,所述施加站包括用于将所述灌注促进层施加至所述条带的所述表面的辊。
17.根据权利要求16所述的拉挤成型设备,该拉挤成型设备包括粘合剂站,该粘合剂站构造成将粘合剂层施加至所述条带的所述表面,其中,所述粘合剂站与所述拉挤成型模布置成一行并且布置在所述拉挤成型模与所述施加站之间。
18.根据权利要求17所述的拉挤成型设备,其中,所述粘合剂站构造成将粘合剂层喷涂到所述条带的所述表面上。
19.根据权利要求17或者18所述的拉挤成型设备,该拉挤成型设备包括用于固化所述条带的加热装置,其中,所述加热装置在所述工艺方向上布置在所述粘合剂站的上游。
20.根据权利要求15至19中任一项所述的拉挤成型设备,该拉挤成型设备包括第一施加站与第二施加站,所述第一施加站与所述第二施加站布置在所述条带的相对两侧上并且分别构造成将相应的灌注促进层施加至所述条带的相应的上表面与下表面。
21.一种根据权利要求1至14中任一项所述的拉挤成型工艺或者利用权利要求15至20中任一项所述的拉挤成型设备制成的条带。
22.一种风轮机叶片用的细长加强结构,该细长加强结构包括根据权利要求1至14中任一项所述的拉挤成型工艺或者利用权利要求15至20中任一项所述的拉挤成型设备制成的条带。
23.一种制造风轮机叶片用的细长加强结构的方法,该方法包括:
提供根据权利要求1至14中任一项所述的拉挤成型工艺或者利用权利要求15至20中任一项所述的拉挤成型设备制成的多个条带;
通过将所述多个条带堆叠在模具中而形成层压体;
穿过所述层压体灌注树脂;并且
使所述树脂固化以形成所述细长加强结构。
24.一种根据权利要求23所述的方法的风轮机叶片用的细长加强结构。
25.一种包括权利要求23或者24所述的细长加强结构的风轮机叶片。
26.一种包括权利要求25所述的风轮机叶片的风轮机。
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GB201318852D0 (en) | 2013-12-11 |
DK3060385T3 (da) | 2017-11-13 |
GB2519566A (en) | 2015-04-29 |
EP3060385B1 (en) | 2017-10-04 |
CN105848860B (zh) | 2018-07-10 |
EP3060385A1 (en) | 2016-08-31 |
WO2015058775A1 (en) | 2015-04-30 |
US20160263844A1 (en) | 2016-09-15 |
US10688738B2 (en) | 2020-06-23 |
ES2645846T3 (es) | 2017-12-11 |
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