A kind of igniter without conventional extension mechanism

Abstract

The invention discloses an igniter without a conventional delay mechanism, comprising a housing, an acupuncture cap, a spring, a firing pin, one charge of ignition powder, two charges of ignition powder, one pass of nitrocellulose (mixed in a certain proportion) Nano-scale metal aluminum powder and nano-boron powder), second-pass nitrocellulose, etc. It is characterized in that the ignition intensity of nitrocellulose is improved by using the metal activity of nano-scale boron powder and aluminum powder, and the ignition mechanism of the ignition device is composed of nitrocellulose with low sensitivity and the cap, so as to improve the stability of the ignition mechanism (this special The performance of nitrocellulose has been close to that of traditional priming powder in the experiment), and it can stably excite ignition powders such as black powder, boron / potassium nitrate, potassium picrate / potassium perchlorate; the special charge structure can ensure that nitrocellulose is prone to deflagration Response; the burning time of the second-pass nitrocellulose is used as the delay time of the igniter, and the delay time is proportional to the quality of the second-pass nitrocellulose, and the delay mechanism in the traditional inertial igniter is cancelled.

Description

technical field [0001] The invention relates to an igniter in the field of pyrotechnics, in particular to an igniter without a conventional delay mechanism, and belongs to the field of pyrotechnics. Background technique [0002] At this stage, my country's weapon systems generally require igniters with instant or delayed functions. Instant ignition has a relatively mature technology in China. In the field of detonating materials, the delay effect is generally achieved through fuses, detonating cords, mechanical delays, chemical delays, and electronic delays. In a weapon system, a delay mechanism (delay drug) is generally used to achieve a delay effect subject to conditions. With the development of weapon systems, the performance requirements for pyrotechnics are further improved, but as far as pyrotechnics are concerned, their essential instability still exists. [0003] For the delayed drug, although the gas-free delayed drug is used at this stage, there is still gas due...

AI Technical Summary

Problems solved by technology

At present, the traditional priming agent is mostly dinitrodiazophenol (DDNP), which has the advantages of high detonation sensitivity, fast growth, and high detonation velocity. However, DDNP has high mechanical sensitivity and poor pressure resistance. The upper limit of the pressed density is 1.10g / cm3. In addition, the friction sensitivity of DDNP is the lowest among commonly used primary explosives. In addition, every kilogram of DDNP produced produces about 150-250 kilograms of industrial wastewater, and the wastewater also has certain toxicity.

Although there are many problems in the above-mentioned medicaments, there is no better primer to replace the above-mentioned medicaments at present.

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