压装型TKX-50基通用爆破炸药设计及安全性研究

Translated title of the contribution: Design and Safety Research of TKX-50-based Pressed General Blasting Explosive

Shu Ji Wang, Di Wang, Ping Liu, Xiao Le Sun, Xiao Long Wang, Xue Yong Guo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

To improve the energy and insensitivity of general blasting explosives, the combination of insensitive explosive TKX-50 and high-energy explosive CL-20 was selected as the main explosive. The distribution ratio of each component in the mixed explosive was determined by analyzing the effect of the content of TKX-50, CL-20, and Al on detonation properties. On this basis, the pressed TKX-50-based general blasting explosive (TCL-5) with 33%TKX-50/30%CL-20/27%Al/4%AP/6% binder was prepared through recrystallization of the main explosive, grading of the particle size and design of the composite insensitive binder carrier. Mechanical sensitivity, energy and insensitivity performance were tested according to the GJB-772A standard. The results show that the mechanical sensitivities of TKX-50 and CL-20 are significantly reduced after recrystallization. TCL-5 has a charge density of 1.95g/cm3, detonation velocity of 7895m/s, and detonation heat of 8567kJ/kg, which can pass the four insensitive tests of fast cook-off, slow cook-off, bullet impact and fragment impact. Hence, TCL-5 is a kind of high-energy insensitive explosive with higher energy and lower sensitivity, which exhibits excellent comprehensive properties.

Translated title of the contributionDesign and Safety Research of TKX-50-based Pressed General Blasting Explosive
Original languageChinese (Traditional)
Pages (from-to)308-314
Number of pages7
JournalHuozhayao Xuebao/Chinese Journal of Explosives and Propellants
Volume45
Issue number3
DOIs
Publication statusPublished - Jun 2022

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Wang, S. J., Wang, D., Liu, P., Sun, X. L., Wang, X. L., & Guo, X. Y. (2022). 压装型TKX-50基通用爆破炸药设计及安全性研究. Huozhayao Xuebao/Chinese Journal of Explosives and Propellants, 45(3), 308-314. https://doi.org/10.14077/j.issn.1007-7812.202203016