Exploding foil overpressure chip integrating one-shot switch, and detonating device thereof

Abstract

The invention belongs to the field of detonation, and particularly relates to an exploding foil overpressure chip integrating a one-shot switch, and a detonating device thereof. The exploding foil overpressure chip integrating the one-shot switch comprises a one-shot switch unit and an exploding foil overpressure chip unit integrated on one same ceramic substrate, wherein the exploding foil overpressure chip unit comprises an exploding foil array area; and the exploding foil array area is formed by connecting multiple exploding foils in series and then in parallel. According to the exploding foil overpressure chip integrating the one-shot switch, and the detonating device thereof provided by the invention, a way of connecting the multiple exploding foils in parallel is adopted in the chip,the multiple exploding foils drive multiple flying plates to shock and detonate multiple HNS explosive cylinders, detonation waves generated by HNS explosives are collided mutually so as to form Machreflection, and overpressure detonation is generated and exceeds critical detonating pressure of insensitive explosives, so that explosion propagation and explosion enlargement sequences can be cancelled, and the insensitive explosives are directly detonated. The switch in the chip adopts the one-shot switch, and a low-pressure trigger circuit of the switch and a high-pressure main loop of the exploding foil overpressure chip are separated, so that the detonation energy of the main loop is reduced.

Description

technical field [0001] The invention belongs to the field of detonation, in particular to an explosive foil overpressure chip integrated with a single trigger switch and a detonation device thereof. Background technique [0002] High-energy, insensitive detonation is one of the research directions of explosion mechanics. How to achieve high-energy and insensitive detonation has been the direction of efforts of researchers in explosion mechanics at home and abroad. Exploding Foil Initiator (Exploding Foil Initiator, EFI) whose primary charge is in-line permitted HNS explosive, is a typical insensitive detonation method. It mainly includes base plate, explosion bridge foil, flyer, acceleration chamber and agent. Since the detonating foil detonator does not contain sensitive priming charges, the sensitivity of the charges used is equivalent to that of high-density high explosives, so the entire detonating system has high safety and reliability. Widely used in the detonation ...

AI Technical Summary

Problems solved by technology

[0004] Explosive foil detonators with traditional structures are assembled by manual assembly of discrete components, which have low efficiency, large volume, high energy consumption, and high price. However, the critical detonation pressure of insensitive explosives such as TATB is usually required to be greater than 18GPa. If there is no detonation and expansion sequence, the detonating foil detonator cannot directly detonate insensitive explosives.

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