硅系和硼系辅延期药点火能力的试验研究

Test Research on Iginting Strength of Boron and Silicon Type Assistant Delay Compositions

针对铅芯延期元件的导爆管雷管结构,将硅/铅丹/硫化锑、硼/铬酸钡辅延期药对钨系延期药的点火能力进行了对比试验,从自身稳定性到点火能力进行了比较。结果表明,硼系辅延期药的点火能力优于硅系辅延期药的点火能力,储存性好,燃烧稳定,延期精度好,而且硼系辅延期药的制备简单,原材料更易得,适合作为长延时钨系延期药铅延期体结构的点火体装药。

Based on the structure of nonel detonator with lead tube delay element,the comparative tests and analyses on the igniting strength of Si / Pb3O4/ Sb2S3 and B / Ba Cr O4 assistant delay compositions were carried out,in which the main delay composition is tungsten type delay composition. The comparisons focused on the aspects of their stability and igniting strength,indicating that the igniting strength of boron type assistant delay composition is superior to that of silicon type assistant delay composition,in that it presents good storage,stable combustion,and the delay precision. Moreover,the preparation of boron type assistant delay composition is simpler,and the required raw materials are easier to obtain. It is suitable to be used as the ignition charge of long time delay tungsten type delay composition with lead delay element structure.