新型液体成型技术在民机副翼结构的应用研究

Application Research of New Liquid Molding Technology for Civil Flap

基于传统VARI工艺开发了一种可以满足航空复合材料构件大规模生产需求的新型低成本液体成型技术。采用了多种工艺措施确保注胶口和出胶口处树脂压力和树脂流动控制,对比试验表明,采用新型液体成型技术所制备的复合材料层合板厚度均匀性能够接近预浸料/热压罐成型的复合材料层合板的水平。采用新型液体成型技术所研制的民机副翼结构件具有良好的外形和内部质量,可以满足航空复合材料结构的应用需求。

Based on the traditional VARI technology, a new generation of low eost liquid molding technology has been developed to satisfy the mass production demands of aeronautical composite structure. The proposed muhiple approaches are applied to control the resin pressure difference hetween the injection and vent location and the flow control of the resin during the molding process. The resuhs of the comparative experiment show that the thiekness uniformity of the composite laminates molded by the new liquid molding technology are comparable with those of the laminates molded by prepreg/autoelave process. Applying the new liquid molding technology, the molded civil flap has good appearance and internal quality satisfying the application requirements of aeronautical composite.