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    • 6. 发明授权
    • High pressure hollow process for manufacturing composite structures
    • 用于制造复合结构的高压中空工艺
    • US5853651A
    • 1998-12-29
    • US711181
    • 1996-08-28
    • Howard A. LindsayJeffrey A. MearsRobert F. MonksSteven M. MotoyamaChristopher K. DeLap
    • Howard A. LindsayJeffrey A. MearsRobert F. MonksSteven M. MotoyamaChristopher K. DeLap
    • B29C70/44B29C44/06B28B7/30
    • B29C70/446Y10S264/44
    • A method of fabricating complex hollow composite structures from laminates of fiber reinforced synthetic resins. The structures are fully monocoque tubes with no seams. The tubes are manufactured by wrapping a hollow semi-rigid inner mandrel made of thermoplastic material such as polystyrene or ABS (acrylonitrile-butadiene-styrene co-polymer) with layers of composite sheets. The sheets are made from high-strength fibers impregnated with thermosetting or thermoplastic resins. The laminated mandrel is placed in a mold, heated and inflated to a predetermined pressure. The pressure can range from 20-200 psig and even higher, while the curing temperature can range from 200.degree.-600.degree. F. The pressure generated by the expanding core produces a highly consolidated composite structure that has fewer voids, a more uniform thickness, and an increased fiber content compared to hollow composites made by other fabrication methods.
    • 一种从纤维增强合成树脂层压板制造复杂中空复合结构的方法。 结构是完全没有接缝的单体管。 这些管通过包裹由诸如聚苯乙烯或ABS(丙烯腈 - 丁二烯 - 苯乙烯共聚物)的热塑性材料制成的空心半刚性内心轴与复合片材层一起制成。 片材由浸渍有热固性或热塑性树脂的高强度纤维制成。 将层压心轴放置在模具中,加热并膨胀至预定压力。 压力可以在20-200psig甚至更高的范围内,而固化温度可以在200-600°F范围内。膨胀芯产生的压力产生高度固结的复合结构,其具有较少的空隙,更均匀的厚度, 并且与通过其它制造方法制成的中空复合材料相比,纤维含量增加。