[1]缪迎兵①,谢锐①,王倩②,等.延时起爆装置可靠点火技术的研究[J].爆破器材,2025,54(01):41-45.[doi:10.3969/j.issn.1001-8352.2025.01.007]
 MIAO Yingbing,XIE Rui,WANG Qian,et al.Research on Reliable Ignition Technology of the Delay Detonation Device[J].EXPLOSIVE MATERIALS,2025,54(01):41-45.[doi:10.3969/j.issn.1001-8352.2025.01.007]
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延时起爆装置可靠点火技术的研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
54
期数:
2025年01
页码:
41-45
栏目:
爆炸材料
出版日期:
2025-01-09

文章信息/Info

Title:
Research on Reliable Ignition Technology of the Delay Detonation Device
文章编号:
5964
作者:
缪迎兵谢锐王倩许建兵叶迎华
①安徽红星机电科技股份有限公司(安徽合肥,230012)
②南京理工大学化学与化工学院(江苏南京,210094)
Author(s):
MIAO Yingbing XIE Rui WANG Qian XU Jianbing YE Yinghua
① Anhui Hongxing Electromechanical Technology Co., Ltd. (Anhui Hefei, 230012)
② School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
关键词:
燃烧转爆轰延时起爆装置点火药室热对流
Keywords:
deflagration to detonation transition delay detonation device ignition chamber thermal convection
分类号:
TQ560.9
DOI:
10.3969/j.issn.1001-8352.2025.01.007
文献标志码:
A
摘要:
延时起爆装置是燃烧转爆轰(DDT)技术的工程化应用。某型子弹药延时起爆装置的技术特点是:导爆索完成传爆,将爆轰信号传递给装置的点火药室;点火药室在外力的作用下打开传火通道,通过点火药的燃烧完成延时功能;同时,点火药的能量通过传火通道传递给炸药;炸药在管壳的束缚下实现DDT过程,输出稳定爆轰。在产品研制过程中,出现硼/硝酸钾点火药未点燃钝黑-5炸药、未可靠输出爆轰等现象。因此,为实现可靠点火并输出稳定爆轰,根据DDT技术的特点,完善硼/硝酸钾点火药的装药结构设计,即在点火药装药的输出端面上设置中心孔。当点火药燃烧阵面到达小孔后,燃烧产生的能量就能够通过打开的传火通道持续传递给炸药,减少起始阶段的能量逸散,达到提高炸药起始能量的目的,使得炸药向不稳定燃烧过渡,在金属管壳的束缚下实现炸药的弱爆轰,进而成长并输出稳定爆轰。通过对硼/硝酸钾点火药装药的重新设计,提高了某型子弹药延时起爆装置产品作用的可靠性。
Abstract:
Delay detonation device is an engineering application of deflagration to detonation transition (DDT). The technical characteristics of the delay detonation device of a certain type of submunition are: the detonating cord completes the detonation and transmits the detonation signal to the ignition chamber of the device. The ignition chamber opens the fire transmission channel under the action of external force, and completes the delay function through the combustion of the ignition powder. At the same time, the energy of the ignition powder is transmitted to the explosive through the fire transmission channel, and the explosive achieves the process of DDT under the constraint of the tube shell, outputting stable detonation. In the process of product development, phenomena such as boron/potassium nitrate ignition powder not igniting blunt black-5 explosive and unreliable detonation output occurred. In order to achieve reliable ignition and stable detonation output, based on the characteristics of DDT, the ignition charge structure of boron/potassium nitrate was redesigned by setting a central hole on the output end face of the ignition charge. When the combustion front of the ignition charge reaches the small hole, the energy generated by combustion can be continuously transferred to the explosive through the open fire transmission channel, reducing the energy escape at the initial stage to increase the initial energy of the explosive. This enables the explosive to transition to unstable combustion and achieve weak detonation under the bondage of the metal tube shell. And then, the growth and output of stable detonation are achieved. Through the redesign of the boron/potassium nitrate ignition charge, the action reliability of the delay initiation device of a certain type of submunition has been improved.

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备注/Memo

备注/Memo:
收稿日期:2024-07-12
基金项目:国家自然科学基金面上项目(52102107, 22275092, 52372084);中央高校基本科研业务费专项资金(30923010920)
第一作者:缪迎兵(1988—),男,工程师,从事火工品、弹药装置的研发工作。E-mail:947664218@qq.com
通信作者:许建兵(1991—),男,副研究员,主要从事微点火起爆技术的研究。E-mail:xujianbing@njust.edu.cn
更新日期/Last Update: 2025-01-10