The proposed propellant powder exhibits a temperature-independent burning behavior and high ballistic stability. The production process starts with a perforated bulk powder grain, which is processed inside a mixing apparatus with a solid material, a plug-stabilizing moderator or deterrent (if necessary also a radical initiator) and a low-viscous liquid. With a minimum amount of solid material, moderator or deterrent and liquid and because of the continuous mixing, the form function is influenced in such a way that the gas-formation rate is practically independent of the propellant powder temperature. As a result, the muzzle energy at the normal temperature and, above all, at a low deployment temperature can be increased markedly as compared to that of a standard propellant powder.
With the propellant powder according to the invention, for which the grain has at least one perforation that discharges with an opening to the outside surface of the grain, wherein the opening is closed off with a plug, the plug has a temperature-dependent mobility. As a result, the plug has a higher mobility for a lower deployment temperature than for a higher deployment temperature, so that the plug permits a faster hole burning at a lower deployment temperature than at a higher deployment temperature.
拟议的推进剂粉末具有与温度无关的燃烧特性和较高的弹道稳定性。生产过程从穿孔的散装粉粒开始,粉粒在混合设备中与固体材料、栓稳定缓和剂或阻遏剂(必要时还包括激元
引发剂)和低粘度液体一起加工。由于固体材料、缓和剂或阻燃剂和液体的用量极少,而且是连续混合,因此气体形成率实际上不受推进剂粉末温度的影响。因此,与标准发射药相比,在常温下,尤其是在低部署温度下,枪口能量可以明显增加。
在本发明的发射药中,药粒上至少有一个穿孔,该穿孔通过一个开口向药粒外表面发射,该开口用一个塞子封闭,塞子具有随温度变化的流动性。因此,与较高的部署温度相比,在较低的部署温度下,塞子具有较高的流动性,因此与较高的部署温度相比,在较低的部署温度下,塞子允许更快地烧孔。