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    • 101. 发明授权
    • Core for composite structures
    • 复合结构的核心
    • US4774121A
    • 1988-09-27
    • US874516
    • 1986-06-16
    • Edward E. Vollenweider, II
    • Edward E. Vollenweider, II
    • B29C44/18B29C70/02B29C70/66B29D24/00B29D99/00B32B3/12
    • B29D99/0021B29C44/186B29C70/02B29C70/021B29C70/66B29D24/008B32B3/12B29K2105/165B29L2007/002Y10T428/24157Y10T428/31989
    • An improved core structure is provided for composite structures and particularly those employing fiberglass reinforced plastic surface layers. In accordance with this invention, a composite article is formed having a central layer comprised of a plurality of elongated hollow rod like members which are supported by a retaining material. The rod members are preferably made from a naturally occurring hollow material such as bamboo stalks. The retaining material is preferably a foam type plastic such as urethane, PVC, or syntactic foam. The core structure may be fabricated by loading a plurality of bamboo stalks into an elongated trough form, and then filling the trough with retaining material. Following curing, the core body is removed from the form and is sliced into plate shaped individual core pieces. The core structures are thereafter skinned with a plastic outer layer such as fiber reinforced plastic and used to develop webs, bulkheads, reinforcing members and various other features in composite structures.
    • 提供了一种改进的芯结构,用于复合结构,特别是采用玻璃纤维增​​强塑料表面层的结构。 根据本发明,复合制品形成有具有由保持材料支撑的多个细长的中空杆状构件构成的中心层。 杆构件优选由天然存在的中空材料如竹秆制成。 保持材料优选为泡沫塑料,例如聚氨酯,PVC或复合泡沫。 芯结构可以通过将多个竹柄装载成细长的槽形,然后用保持材料填充槽来制造。 固化后,将芯体从形式中取出并切成板状的单个芯片。 此后,核心结构用诸如纤维增强塑料的塑料外层进行剥皮,并用于在复合结构中开发网,隔板,加强件和各种其它特征。