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    • 4. 发明申请
    • Vacuum Infusion by Means of a Semi-Permeable Membrane
    • 通过半透膜进行真空输液
    • US20080093761A1
    • 2008-04-24
    • US11791643
    • 2005-11-30
    • Tim Hansen
    • Tim Hansen
    • B29C70/54B29C70/44
    • B29C70/546B29C70/443
    • Method of producing an oblong shell member made of fibre composite material by means of vacuum infusion, where the fibre material is impregnated with liquid polymer. A mould is applied with a mould cavity, in which a fibre insertion (3) with a first lateral face (1) and a second lateral face (2) is placed, and where said fibre insertion includes a plurality of fibre layers and a distribution layer (4), said distribution layer allowing a higher rate of flow for the liquid polymer than the fibre layers. A semi-permeable membrane (5) is placed opposite the first lateral face (1) of the fibre insertion, said semi-permeable membrane being substantially permeable to gasses and substantially impermeable to liquid polymer and further communicating with a vacuum source The distribution layer (4) is placed inside the fibre insertion (3) with fibre layers on both sides and is interrupted by a zone (6) opposite the semi-permeable membrane (5) Liquid polymer is directed via inlet channels (7, 8) to the distribution layer (4), thus creating a flow front (9, 10) between the distribution layer (4) and the second lateral face (2), said flow front moving through the central zone (6) towards the semi-permeable membrane (5)
    • 通过真空注入制造由纤维复合材料制成的长方形壳体部件的方法,其中纤维材料用液体聚合物浸渍。 模具被施加有模腔,其中放置有具有第一侧面(1)和第二侧面(2)的纤维插入件(3),并且其中所述纤维插入件包括多个纤维层和分布 层(4),所述分配层允许液体聚合物比纤维层更高的流动速率。 半透膜(5)与纤维插入物的第一侧面(1)相对放置,所述半透膜基本上可渗透气体,并且基本上不透液体聚合物并进一步与真空源连通。分散层 4)放置在光纤插入件(3)的内部,纤维层在两侧并被与半透膜(5)相对的区域(6)中断。液体聚合物通过入口通道(7,8)被引导到分布 (4),从而在分配层(4)和第二侧面(2)之间形成流动前部(9,10),所述流动前缘通过中心区域(6)朝向半透膜(5)移动 )