Ignition method, structure and manufacturing method for electric detonator

Abstract

The invention discloses an ignition method, structure and manufacturing method for an electric detonator. The surface of an initiating explosive of the electric detonator is provided with a layer of metal thin film in contact with the initiating explosive to serve as a bridge of the electric detonator, and electric pulses from an energy storage system flow through the metal thin film bridge so that the metal thin film bridge can be heated and gasified till the metal thin film bridge is broken through to form plasma. Plasma particles permeate into a chemical agent adjacent to the plasma particles through micro-convection motion and are coagulated on chemical agent particles to transmit energy to the chemical agent particles, so that a chemical reaction is induced, and the chemical agent particles can be ignited. The metal thin film serves as the bridge, a traditional technology of the electric detonator is changed, the defects such as welding spot pseudo soldering, welding splashes and the like in a bridge manufacturing technology of the traditional technology are overcome, initiating explosive devices can be miniaturized and are low in energy consumption, high in safety and high in reliability, and a brand new technological approach is provided for development of initiating explosive devices. The ignition method, structure and manufacturing method for the electric detonator are simple, easy to conduct and ideal in use effect.

Description

technical field [0001] The invention relates to the technical field of civil explosives, in particular to an ignition method, structure and preparation method of an electric detonator. Background technique [0002] In the increasingly harsh modern electromagnetic environment, the safety and reliability of traditional detonators are seriously challenged. The advent of new microelectronic detonators has changed the current situation and become a hot spot in the field of pyrotechnics. [0003] At present, the bridge electrified detonator in China is a photolithographic metal bridge strip, which has a large heat capacity and poor thermal coupling with the substrate. The product is insensitive and slow to act under the condition of ignition current. The contradiction of ignition reliability when the energy is small. And the present bridge belt processing is complicated, and cost is higher. Contents of the invention [0004] The object of the present invention is: to provide a...

AI Technical Summary

Problems solved by technology

[0003] At present, the bridge electrified detonator in China is a photolithographic metal bridge strip, which has a large heat capacity and poor thermal coupling with the substrate. The product is insensitive and slow to act under the condition of ignition current. Contradiction of Ignition Reliability When Energy is Small

And the current bridge belt processing is complicated and the cost is higher

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