Experimental Study on Flyer Driven by Lead Azide to Cetonate Booster Charge

HE Xiang; YANG Lixin; DONG Haiping; LI Chaozhen; YAN Nan; FAN Zhiwei

doi:10.15892/j.cnki.djzdxb.2023.01.009

Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 1: 63 - 69

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.01.009

Experimental Study on Flyer Driven by Lead Azide to Cetonate Booster Charge

HE Xiang ¹ ,
YANG Lixin ² ,
DONG Haiping ¹ ,
LI Chaozhen ³ ,
YAN Nan ¹ ,
FAN Zhiwei ⁴

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¹ School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
² Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China
³ Academy of Opto-electronics, China Electronics Technology Group Corporation, Tianjin 300308
⁴ Xi’an Aerospace Propulsion Technology Institute, Xi’an 710025, Shaanxi, China

Received date: 2022-01-12

Online published: 2025-02-01

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Abstract

In order to study the influencing factors of the lead azide-driven flyer-type explosive train, the effects of ignition energy, primary explosive, material and thickness of explosion-proof element and ignition composition on the detonation propagation and explosion-proof ability of the explosive train were studied by steel dent test and manganin piezoresistive sensor. The results show that the explosive train needs to meet the minimum ignition energy and primary charge conditions at the same time in order to properly propagate the explosion energy. The minimum ignition energy required for initiation is 3.4 mJ, and the minimum charge of lead azide required is 4.7 mg. When the thickness of nickel and silicon materials of explosion-proof elements is 0.32~0.80 mm, the lead charge does not have detonation reaction, but pits and ablation occur; When the ignition composition height is 0.25~1.25 mm, the detonation pressure of the initiation element does not change significantly.

Key words： explosive train; ignition energy; ignition composition; primary explosive; explosion-proof elements

Cite this article

HE Xiang , YANG Lixin , DONG Haiping , LI Chaozhen , YAN Nan , FAN Zhiwei . Experimental Study on Flyer Driven by Lead Azide to Cetonate Booster Charge[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(1) : 63 -69 . DOI: 10.15892/j.cnki.djzdxb.2023.01.009

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