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Laser initiation flyer type initiating explosive-free detonator

A non-priming, flyer-type technology, which is applied to weapon accessories, fuzes, offensive equipment, etc., can solve the problems of large volume of detonating devices, high laser energy, and difficulty in refugee use, and achieves excellent electromagnetic resistance, high output power, and The effect of improving energy efficiency

Inactive Publication Date: 2012-05-02
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the huge laser energy required for detonation and the large volume of the detonation device, it is difficult to realize civilian use
[0005] So far, no report on using laser technology to detonate the flyer-type non-primer detonator has been found

Method used

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  • Laser initiation flyer type initiating explosive-free detonator
  • Laser initiation flyer type initiating explosive-free detonator
  • Laser initiation flyer type initiating explosive-free detonator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 . In the figure, the core diameter of fiber 1 is 400um, the fiber cladding is 430um, the thickness of the plastic layer is 730um, the numerical aperture (NA) is 0.37, and one end has an SMA905 fiber interface for the connection between the fiber and the laser. The outer surface of the rubber plug 2 is closely matched with the inner surface of the detonator case 3. The outer diameter of the rubber plug is 5.8 mm, the middle aperture is 3.0 mm, the outer diameter of the detonator case is 7.0 mm, and the inner diameter is 6.2 mm. The outer surface of the lower part of the rubber plug 2 is in interference fit with the inner wall surface of the upper part of the variable section inner cap 4. The total height of the inner cap is 12 mm, the outer diameter of the upper part is 6.2 mm, the inner diameter is 5.4 mm, the height is 7 mm, and the outer diameter of the lower part is 5.8 mm. Inner diameter 5.0mm, height 5mm. The fourth charge 5 in the cavity of the vari...

Embodiment 2

[0031] Figure 4 It is a schematic diagram of the structure of the laser-initiated equal-section flyer-type non-primer detonator. In the figure, the total height of the equal-section inner cap 7 is 15 mm, the outer diameter is 6.2 mm, and the inner diameter is 5.4 mm. The 4th medicine 8 of packing in equal section inner cap 7 lumens is RDX / KClO 3 , where KClO 3 The mass ratio to RDX is 1, and the packing density is 1.6g / cm 3 , charge amount 0.4g, filling height 8mm. There are 3 bayonets on the superimposed part of the detonator, and the diameter of the bayonets is 4.8mm.

[0032] according to figure 2 connection shown Figure 4 The flying chip detonator with equal cross-section of the laser is connected to the power supply, and the laser is output, and the detonator is detonated immediately.

Embodiment 3

[0034] Figure 5 It is a schematic diagram of the detonation system using laser beam splitting to realize multiple simultaneous detonation of flying chip detonators. In the figure, the power supply 9 is connected to the laser 10 through the connecting line 11, the laser output from the laser 10 passes through the optical fiber 1 to the optical fiber beam splitter 12, and then divides a bundle of optical fibers into 4 paths through the optical fiber beam splitter 12, and the separated 4 The optical fibers are respectively connected with a laser detonated flyer detonator. The power supply 9 is switched on, and the flyer detonators 13, 14, 15, 16 of detonating laser detonation are respectively detonated by four optical fibers of the optical fiber.

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Abstract

The invention belongs to the field of initiation apparatuses, and discloses a laser initiation flyer type initiating explosive-free detonator. The detonator comprises a detonator matrix filled with three-times high explosive, a detonator exciting device consisting of an inner cap and four-times explosive, and a laser initiation system, wherein the laser initiation system consists of a rubber plug, an optical fiber and a laser generating device connected with the optical fiber; the rubber plug is plugged into the inner cap in a detonator shell, the outer surface of the rubber plug is in tight fit with the inner walls of the detonator shell and the inner cap, the middle of the rubber plug is provided with a through hole, the optical fiber connected with the laser generating device passes through the hole, the end of the optical fiber is flush with the lower port of the rubber plug, and the distance between the lower port and the surface of the four-times explosive in the inner cap is less than 15 millimeters; and the laser wavelength of the laser generating device is in a range of 500 to 1,500 nanometers, the optical fiber is a single mode fiber or a multi-mode fiber, and the energy of the laser output by the optical fiber is more than 0.4W. Through the detonator, initiation of the non-dispersed four-times explosive is realized, and the reliability and the safety of the initiation system are improved; and because the transmission optical fiber has high-temperature and high-pressure resistance, the detonator is suitable for severe environments of deep water, high pressure and the like.

Description

Technical field: [0001] The invention belongs to the field of detonating materials. Background technique: [0002] As the detonating body of insensitive explosives, detonators are widely used in military, high-tech fields and civil engineering. The detonators currently in use all adopt composite charge technology, and the typical structure is to use relatively insensitive high-power explosives as the secondary charge, and use sensitive primary explosives as the main charge. First detonate the main charge, utilize the detonator to detonate the strong explosive again. But all primary explosives are very sensitive to various first ignition energy sources, such as heat energy, electric energy, light energy, radiation energy, mechanical energy, etc., which have great safety hazards and are not suitable for high temperature, strong radiation, strong magnetic field, etc. It can be used in environments with strong impact and high overload. At the same time, a large amount of indu...

Claims

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Application Information

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IPC IPC(8): F42C19/08F42C19/10
Inventor 马宏昊杜建国沈兆武
Owner UNIV OF SCI & TECH OF CHINA
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