Preparation Process Optimization and Warhead Dispersion Integrity Investigation of Energetic Projectiles
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摘要:为研发新型含能毁伤元，以Al、Mg、W和聚四氟乙烯（PTFE）为原料制备了四元体系的含能微弹丸，研究了混合、预成型、冷等静压、烧结过程中各项工艺参数对含能微弹丸力学性能的影响，得到优化后的工艺条件为：湿法混合，预制成型压力20MPa，保压时间5min，200MPa下冷等静压30min，烧结温度380℃。战斗部抛撒试验结果表明：含能微弹丸经炸药驱动后完整性良好，力学性能可满足使用要求；同时，对铝板的上靶率达到83.33%，平均穿孔直径在9mm以上，具有一定的侵彻效果。
Abstract:To develop a new type of energetic damage element, quaternary-system energetic projectile was prepared from Al, Mg, W and polytetrafluoroethylene (PTFE), and an investigation into the effects of process parameters during mixing, preformation, cold isostatically pressing, and sintering on the mechanical property of energetic projectile was carried out, which resulted in the optimized process conditions, that is, the raw material powders are preformed under the pressure of 20MPa for 5min after wet mixing, and then the formed part is cold isostatically pressured under the pressure of 200MPa for 30min and afterwards sintered at 380℃. Warhead dispersion test show that energetic projectiles have good integrity after driven by explosives, indicating that the mechanical property can meet the use demand. Meanwhile, energetic projectiles have penetration effects on the aluminum plate with the hit rate of 83.33% and the mean penetration hole diameter above 9mm.
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