The invention discloses a foam sandwich cap type stiffened wallboard structure and an integrated forming method, and belongs to the technical field of composite material manufacturing. According to the method, a dry fabric, a trapezoidal foam sandwich which is grooved and punched in advance and a one-way filling core material are laid and assembled on a skin female die tool, an assembled prefabricated body is prepared, and then the prefabricated body is subjected to integrated impregnation and curing through a vacuum resin flow guide process; wherein, the interface between the skin and the foam sandwich is completely filled with the impregnated resin, the flow guide holes formed in the foam sandwich are also filled with the resin to form resin columns, and the resin columns evenly distributed in the foam sandwich improve the pressure resistance of the foam sandwich material. Besides, the resin penetrating between the resin columns and the skin and the core material also improves the bonding strength between the skin and the core material. Therefore, the manufacturing period and cost of the cap-shaped stiffened wall plate can be obviously reduced.
本发明公开了一种泡沫夹芯帽型加筋壁板结构及一体化成型方法,属于复合材料制造技术领域。通过干态织物与预先进行开槽和打孔的梯形泡沫夹芯以及单向填充芯材在蒙皮阴模工装上进行铺叠和组装,制备得到组装好的预制体,再通过真空树脂导流工艺实现对预制体的一体化浸渍和固化的工艺方法,使蒙皮与泡沫夹芯之间的界面全部由浸渍树脂填充,且泡沫夹芯内部开设的导流孔也被树脂填充而形成树脂柱,均匀在泡沫夹芯中分布的树脂柱提高了泡沫夹芯材料的抗压能力,树脂柱与蒙皮和芯材之间贯穿的树脂也提高了蒙皮与芯材之间的粘接强度。能够显著降低帽型加筋壁板的制造周期及成本。
Foam sandwich cap type stiffened wallboard structure and integrated forming method
一种泡沫夹芯帽型加筋壁板结构及一体化成型方法
2021-12-10
Patent
Elektronische Ressource
Chinesisch
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