基于FPC工艺的集成冲击片换能元性能分析  

Performance of Integrated Exploding Foil Energy Conversion Unit Based on FPC

作　　者：郭菲[1,2] 吕军军 王窈[1] 付秋菠 黄辉[3] 沈瑞琪 GUO Fei;LüJun-jun;WANG Yao;FU Qiu-bo;HUANG Hui;SHEN Rui-qi(School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621999,China;China Academy of Engineering Physics,Mianyang,621999,China)

机构地区：[1]南京理工大学化工学院,江苏南京210094 [2]中国工程物理研究院化工材料研究所,四川绵阳621999 [3]中国工程物理研究院,四川绵阳621999

出　　处：《含能材料》2018年第9期791-795,817,共6页Chinese Journal of Energetic Materials

基　　金：National Natural Science Foundation of China(11702263)

摘　　要：为了提高爆炸箔起爆器的制造效率和产品一致性,设计和制造了一种基于柔性电路板(简称FPC或软板)制造工艺的集成冲击片换能元,并对该集成换能元的电爆炸性能、驱动飞片能力和起爆六硝基茋的能力等基础性能进行了研究。采用高压探头测量了爆炸箔两端的电压曲线,采用罗果夫斯基线圈测量了放电回路的电流曲线,通过光学多普勒测试手段(PDV)测量了电爆炸过程驱动飞片速度历程曲线。结果表明,放电回路峰值电流和桥箔的爆发电流随着电容两端电压的增加而线性增加,其中桥箔的爆发电流从2080 A增加到2680 A。桥箔的爆发时间随着电容两端电压的增加而线性地从232 ns减小至156 ns。随着充电电压的增加,飞片速度从4056 m·s^(-1)增加到4589 m·s^(-1),速度标准偏差为38~48。该冲击片换能元可在放电回路电流峰值约2.04 kA时可靠起爆HNS?Ⅳ,而基于传统制造方式冲击片换能元的起爆电流峰值为2.340 kA。To improve the manufacturing efficiency and product consistency of exploding foil initiators,a kind of integrated exploding foil energy conversion unit based on the flexible printing circuit(also called FPC or soft board)manufacturing process was designed and fabricated,and the basic performances of the integrated energy conversion unit,such as electrical explosion performance,driving flyer capability and initiating hexanitrostilbene(HNS-Ⅳ)capability were studied.In the experiment,the voltage curve at two ends of exploding foil was measured by a high-voltage probe.The current curve of discharge circuit was measured by Rogowski coil.The velocity history curve of flyer driven by electrical explosion process was measured by means of Photonic Doppler Velocimetry(PDV).Results show that the peak current of discharge circuit and burst current of bridge foil linearly increase with the increasing of voltage at two ends of capacitor,in which,the burst current increases from 2080 A to 2680 A.The burst time of bridge foil linearly decreases with the increasing of voltage at two ends of capacitor,from 232 ns to 156 ns.With charging voltage increasing,the flyer velocity increases continuously from 4056 m·s-1 to 4589 m·s-1,and standard deviation value of the velocity is between 38 and 48.The exploding foil energy conversion unit can reliably initiate HNS-Ⅳexplosive when the current peak of discharge circuit is about 2.04 kA,which is lower than that of energy conversion unit fabricated by traditional manufacturing process(2.340 kA).

关 键 词：柔性印刷线路(FPC) 集成单元 爆炸箔起爆器 换能元 

分 类 号：TJ450.1[兵器科学与技术—火炮、自动武器与弹药工程]