Research on the Characteristics and Rules of HMX Electrostatic Electrification Accumulation
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摘要:为了研究奥克托今（HMX）的静电起电积累特性与规律，通过斜槽法模拟HMX在生产、运输、存储和使用过程中的静电积累过程，采用法拉第筒测试了不同斜槽长度、倾角、材质、环境温度与湿度条件下HMX的静电积累量，并研究了HMX混合物、细化及包覆处理方式对HMX静电积累的影响。结果表明：HMX的静电积累量随斜槽长度增大而增加；斜槽倾角为60°时HMX的静电积累量达到最大值；与不同材质斜槽摩擦后，HMX的静电积累由大到小依次为ABS、1060铝、304不锈钢、黄铜。HMX的静电积累量随着湿度增大而降低，但是湿度对其影响十分有限；HMX的静电积累量随着温度升高而降低。对于HMX与石墨混合物，石墨含量增大会导致其静电积累量降低；对于HMX与铝粉混合物，铝粉含量增大会使其静电积累量增加。细化后的HMX由于粒径变化导致其静电积累量成倍增加；包覆处理后的HMX由于表面物质变化导致其静电极性发生变化。
Abstract:In order to study the electrostatic electrification accumulation characteristics and rules of octogin(HMX), the chute method was used to simulate the electrostatic accumulation process of HMX during production, transportation, storage, and use. Faraday tube was used to test the electrostatic accumulation amount of HMX under different chute lengths, inclination angles, materials, environmental temperature and humidity conditions. The effects of HMX mixture, refinement, and coating treatment methods on the electrostatic accumulation of HMX were also studied. The results show that the electrostatic accumulation of HMX increases with the chute length; When the inclination angle of the chute is 60°, the electrostatic accumulation of HMX reaches its maximum value; After friction with chutes made of different materials, the electrostatic accumulation of HMX decreases in the following order: ABS, 1060 aluminum, 304 stainless steel, and brass. The electrostatic accumulation of HMX decreases with increasing humidity, but the influence of humidity on it is very limited; The electrostatic accumulation of HMX decreases with increasing temperature. For the mixture of HMX and graphite, an increase in graphite content will lead to a decrease in electrostatic accumulation; For the mixture of HMX and aluminum powder, an increase in aluminum powder content will lead to an increase in electrostatic accumulation. The refined HMX has a doubled accumulation of static electricity due to changes in particle size; The electrostatic polarity of HMX after coating treatment changes due to surface material changes.
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