起爆索的概念及其特性

本文采用了新的导爆索芯药,得到了一种具有起爆特性的索,称之为起爆索。它能够被常规的电点火头、非电导爆管或延期体点火,并很快形成爆轰输出,对工业炸药实现引爆,因而具备工程雷管的功能。经过对起爆索爆速、殉爆距离、点火感度、起爆能力、轴向威力等的测定,反映出爆速与芯药线密度有关,其殉爆距离是普通导爆索的4倍多,对常规的电、非电导爆管和延期体点火方式则有较好的感度响应,爆速接近5 000 m/s时能够对粉状炸药、乳化炸药或水胶炸药实施引爆,而起爆索的轴向威力只达到2 mm厚铅板炸孔的合格水平。

Concept and Performance of the Initiating Cord

ABSTRACT] With the usage of a new formula as the charge for detonating cord, the formed cords will obtain initiating ability which is named as initiating cord. It can be ignited by the output energy like conventional fusehead, shock tube or delay element, and then transfer to detonation immediately. A segment of initiating cord possesses the function of blasting caps. Detonation velocity, sympathetic detonation distance, igniting sensitivity, initiating ability and axial power of explo-sives were measured. It is found that the detonation velocity is correlated to linear densities of the core charge, and the sympathetic detonation distance of explosives is more than four times of that initiated by conventional initiating cord. It has a better induction of loudness to the ignition of nonel and delay element. When the detonation velocity is near 5 000 m/s, it can initiate the powdery explosive, emulsion explosive and slurry explosive. As the testing result of axial output, the initi-ating cord only perforates the 2 mm thick lead plate.