Initiating explosive actuator adopting low detonation velocity charging to reduce incidental impact and pollution

Abstract

The invention discloses an initiating explosive actuator adopting low detonation velocity charging to reduce incidental impact and pollution. The initiating explosive actuator comprises a short circuit sleeve, an insulating sleeve, a sealant, an electric igniter, a reinforcing ring, a tube shell, a driving explosive, a gasket, a sealing ring and a piston, wherein the electric igniter is composed of an electrode plug, igniting powder, an igniter wire and two conducting wires. The igniting powder is trinitro-resorcinol lead or other weak initiating explosives and ignition powder. The driving explosive is a low-detonation-speed and low-power explosive and can be a hexogen or pentaerythrite tetranitrate-based granular foam explosive, modified black powder, a boron / potassium nitrate ignition explosive, or a pentaerythrite tetranitrate-based PBXN301 mixed explosive and the like. The initiating explosive agent in the traditional initiating explosive actuator is partially or completely replaced by a low-power agent, so that the incidental impact and pollution of the initiating explosive actuator during working can be reduced, the reliability of fuses, ammunition and spacecrafts is improved, and the intrinsic safety of matched products is improved.

Description

technical field [0001] The invention belongs to the technology of pyrotechnics, and in particular relates to a pyrotechnic actuator which adopts a low detonation velocity charge to reduce incidental impact and pollution. Background technique [0002] Pyrotechnic actuators, including pyrotechnic pushers and pyrotechnic pin pullers commonly used in ammunition and fuzes, use a small amount of propellant and explosives as energy, apply the principle of single-stroke internal combustion engines, and realize electrical-mechanical signal control conversion. Because of its small size, light weight, large specific energy (energy / mass), mature technology, and reliable performance, it is widely used. [0003] The pyrotechnic separation device used to realize separation, release and deployment control in the spacecraft, including the piston-type thruster (also known as the stroke actuator), has the same technical essence as the above-mentioned pyrotechnic actuator, just to achieve more ...

AI Technical Summary

Problems solved by technology

When it is working, it will produce a large impact and harmful gas leakage, and form excess and pollutants, resulting in deformation or destruction of its application products such as fuzes, ammunition and the internal structure of spacecraft, and damage to adjacent parts, components and subsystems have the potential to adversely affect or directly cause failure

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