Abstract

The results of investigating the heat from the explosion of individual and aluminized blasting compounds shows that, when testing an unconfined charges, the explosion’s products undergo intense secondary heating when they reach the wall of the calorimetric bomb’s inner cavity. Due to the secondary heating in the products, the chemical reactions are resumed, and the final composition of the products is frozen in conditions of slow cooling and low pressure. The inert metal casing in which a charge is placed attenuates the secondary heating since a significant part of the energy of the products is converted into the kinetic energy of the casing. The effect of filling a calorimetric bomb with an inert gas is similar to the action of a metal casing. In this case, the secondary heating temperature decreases due to the heat spent on heating the inert gas. When testing aluminized compositions, we need to use a heavy casing and fill the bomb with an inert gas (under pressure) in order to reduce the temperature of the secondary heating. The heat of explosion (HE) obtained under conditions when the secondary heating temperature does not reach the threshold value can be considered as a universal parameter that characterizes the energy content of an explosive material.

中文翻译：

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镀铝炸药爆炸热的测定

摘要

调查单个和镀铝炸药爆炸产生的热量的结果表明，当测试无限制装药时，爆炸产物到达量热炸弹内腔壁时会经历强烈的二次加热。由于产物中的二次加热，化学反应得以恢复，并且产物的最终组成在缓慢冷却和低压的条件下被冷冻。放置有电荷的惰性金属外壳减弱了二次加热，因为产品的大部分能量都转化为外壳的动能。用惰性气体填充量热炸弹的效果类似于金属外壳的作用。在这种情况下，由于加热惰性气体所花费的热量，二次加热温度降低。在测试镀铝组合物时，我们需要使用笨重的外壳，并用惰性气体（在压力下）填充炸弹，以降低二次加热的温度。在二次加热温度未达到阈值的条件下获得的爆炸热（HE）可以视为表征爆炸材料能量含量的通用参数。