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 contribution | Design and Safety Research of TKX-50-based Pressed General Blasting Explosive |
---|---|
Original language | Chinese (Traditional) |
Pages (from-to) | 308-314 |
Number of pages | 7 |
Journal | Huozhayao Xuebao/Chinese Journal of Explosives and Propellants |
Volume | 45 |
Issue number | 3 |
DOIs | |
Publication status | Published - Jun 2022 |