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

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

Example Embodiment

[0025] Example 1

[0026] See figure 1 . In the figure, the core diameter of the optical fiber 1 is 400um, the fiber cladding is 430um, the thickness of the coating layer is 730um, the numerical aperture (NA) is 0.37, and one end has an SMA905 fiber interface for connecting the fiber and the laser. The outer surface of the rubber plug 2 is closely matched with the inner wall surface of the detonator shell 3, the outer diameter of the rubber plug is 5.8mm, the middle aperture is 3.0mm, the outer diameter of the detonator shell is 7.0mm, and the inner diameter is 6.2mm. 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 12mm, the outer diameter of the upper part is 6.2mm, the inner diameter is 5.4mm, the height is 7mm, and the outer diameter of the lower part is 5.8mm. The inner diameter is 5.0mm and the height is 5mm. The fourth cha...

Example Embodiment

[0030] Example 2

[0031] Figure 4 It is a schematic diagram of the structure of a laser-initiated constant cross-section flyer type detonator without 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 fourth medicine 8 filled in the inner cavity of the equal section inner cap 7 is RDX / KClO 3 , Where KClO 3 The mass ratio to RDX is 1, and the packing density is 1.6g / cm 3 , The filling volume is 0.4g, and the filling height is 8mm. There are 3 bayonet openings on the overlapping part of the upper part of the detonator with a diameter of 4.8mm.

[0032] press figure 2 Connection shown Figure 4 The laser constant-section flying piece detonator in the middle, the power is turned on, the laser is output, and the detonator is immediately detonated.

Example Embodiment

[0033] Example 3

[0034] Figure 5 It is a schematic diagram of the initiation system that uses laser beam splitting to achieve multiple simultaneous initiation of the flying disc detonator. In the figure, the power source 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 splitter 12, and then divides a bundle of optical fibers into 4 channels by the optical fiber splitter 12. The optical fibers are respectively connected with a laser-initiated flyer detonator. The power supply 9 is turned on, and the four optical fibers are used to detonate the laser-initiated flysheet detonators 13, 14, 15, and 16.

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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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