夹层结构天线罩的低成本制造工艺

LOW COST MANUFACTURING TECHNOLOGY OF RADOME

随着复合材料技术的发展,天线罩原材料的低成本化与成型工艺的低成本化是天线罩设计、生产的方向。本文对夹层结构天线罩的原材料进行了优化选择及性能测试,采用无溶剂湿法预浸料和真空袋压法制造了雷达夹层结构天线罩。通过对天线罩进行电性能及环境适应性测试,制造的天线罩满足产品设计使用要求。采用湿法预浸料的低压成型夹层结构天线罩工艺可以大幅度降低主材费用,在加工成本相仿的条件下较传统的干法预浸料/PMI芯材天线罩成本降低超过50%,与蜂窝夹层结构天线罩制造成本相比总成本降幅可达70%,具有较好的经济效益,可在各类地面雷达天线罩的生产制造中推广应用。

With the development of composite materials technology,the cost reduction of the radome raw materials and the low cost of the molding process are the direction for the design and production of the radome.In this paper,the raw materials of sandwich radome are optimized and tested.The sandwich radome was fabricated by solvent-free wet prepreg and vacuum bag pressing method.Through the electrical performance and environmental adaptabilitiy test,the radome meets the requirements of product design and use.The main material cost of the low-pressure molded sandwich radome for wet prepreg is greatly reduced.The cost of the radome fabricated by this way is more than 50% lower than that of traditional dry prepreg/PMI radome,which is more than 70% lower than that of the honeycomb sandwich radome.It can be widely used in the production of radomes on the ground radars.