The ignitor used in the shrapnel throwing technique was introduced, the traditional charge structure was tested and analyzed, it found that the instable combustion existed and the cut-off deflagrating by blocking would happen. Then a new charge structure that combined the Benite pipe and black powder was proposed, the verification test indicated this charge structure improved the ignition characteristics greatly, and can be widely used for ignition applications with higher consistence requirement.%针对子母弹抛撒技术中的中心装药径向膨胀式抛撒方式，介绍了其中用于点火的点火具。通过对传统点火药的装药结构进行试验研究，发现其存在燃烧不稳定和易于发生堵塞而造成传火中断等问题。由此提出了一种奔奈药管与黑火药组合的新型装药结构，验证试验表明，该装药结构能极大地改善点火具的点传火特性，可广泛用于点火一致性要求较高的场合。
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