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Impact piece exploder and manufacture method thereof

A shock plate and detonator technology, which is applied in the field of pyrotechnics, can solve the problems of low assembly accuracy and reliability, inconvenient automatic production, and low manufacturing efficiency, so as to facilitate automated mass production, high reliability, and manufacturing high efficiency effect

Active Publication Date: 2013-07-31
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problems of this design structure and manufacturing method are: low manufacturing efficiency, high price, inconvenient automatic production, low assembly accuracy and reliability

Method used

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  • Impact piece exploder and manufacture method thereof
  • Impact piece exploder and manufacture method thereof
  • Impact piece exploder and manufacture method thereof

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specific Embodiment

[0027] figure 1 It is a schematic diagram of the axial structure of the shock plate detonator of the present invention. From figure 1 It can be seen that the detonator includes a reflector 1 , a bridge foil 4 , a flyer 6 and an acceleration chamber 8 , 10 . Wherein, the reflector 1 is a relatively thick non-metallic plate, polyimide or other hard circuit boards can be selected; the material of the bridge foil 4 is copper, and the thickness can be selected according to needs, preferably 3 μm to 12 μm; 4 is covered with a layer of polyimide flying piece 6, preferably with a thickness of 10 to 90 microns; the accelerating bore is composed of two non-metallic plates 8 and 10 with the same thickness. In order to ensure the flying of the flying piece, the accelerating bore 11 consists of a The smaller hole on the non-metallic plate 8 and a slightly larger hole on the non-metallic plate 10 can avoid steps that prevent the fly from flying in the accelerating bore 11 during manufactu...

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Abstract

The invention discloses an impact piece exploder and a manufacture method thereof. The manufacture method comprises the following steps: using half curing adhesive to axially couple together a reflective sheet, a bridge foil, a flyer and an accelerating chamber in sequence, wherein the reflective sheet, the flyer and the accelerating chamber are made of polyimide; using a first polyimide layer to form a reflective sheet layer; pressurizing and bonding the reflective sheet layer; using a second polyimide layer and a copper foil layer to form a composite film; then, exposing, developing and etching the copper foil layer of the composite film to acquire the bridge foil; using bonding glue to glue a polyimide film on the surface of the bridge foil to serve as the flyer layer; then, processing the accelerating chamber on a third polyimide layer and a fourth polyimide layer; using the half curing adhesive to pressurize and bond the reflective sheet, the bridge foil, the flyer and the accelerating chamber in a counterpoint manner; and finally, blanking the impact piece exploder on a punch. The impact piece exploder is high in reliability, low in material cost, and convenient for automatic mass production.

Description

technical field [0001] The invention belongs to the technical field of pyrotechnics, and in particular relates to the design of a shock plate detonator based on a soft printed circuit board manufacturing process. Background technique [0002] The shock detonator is a high-safety and high-reliability pyrotechnic product developed based on the mechanism of metal electric explosion and explosive shock initiation. It is generally composed of reflectors, bridge foils, flyers, accelerating chambers, and explosive columns. The core component is the shock disc detonator composed of reflector, bridge foil, flyer and acceleration chamber. Its working principle is: when a strong current passes through the bridge foil, the bridge foil explodes, and the generated plasma expands rapidly, driving the flyer attached to the bridge foil, the flyer accelerates through the acceleration chamber, and hits the explosive column at high speed , to make it detonate and realize the energy output of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B3/12
Inventor 郭菲付秋菠只永发
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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