碳纤维复合材料波导器件成型技术

Forming Technology of CFRP Waveguide

以某卫星用高精度、复杂谐振腔波导器件为对象,设计了碳纤维复合材料铺层及工艺成型方案,通过模具表面金属层转移法,制备了内腔表面金属化的碳纤维复合材料(CFRP)谐振腔波导,进行了高低温环境试验。结果表明:碳纤维复合材料谐振腔内腔型面精度、平整度等均满足设计指标,经历100次-196~120℃高低温循环后,表面金属层/碳纤维复合材料基体结合良好。与殷钢谐振腔相比,碳纤维复合材料谐振腔减重72%。

Through the design of carbon fiber composite lay-up and forming process,a cavity-metallized highprecision and complex composite resonator for a satellite was fabricated by metal transfer from mold surface. High and low temperature experiments were carried out on the composite waveguide resonator. The results indicates that the cavity surface precision,flatness and metallic coating bond strength of the resonator satisfy the design specifications. After 100 cycles of high and low temperature,metallic coatings and CFRP substrate maintain good adhesion. CFRP resonator weighs 72% lower than its Invar counterpart.