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A kind of magnetic explosive and preparation method thereof

An explosive and magnetic technology, applied in the field of magnetic explosive and its preparation, can solve the problems of reducing current amplitude, affecting FCG performance, losing magnetic flux, etc.

Active Publication Date: 2020-10-23
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At the same time, FCG will experience magnetic flux loss during actual use, and the magnetic flux loss will directly affect the energy gain of FCG
The main factors affecting the loss of magnetic flux are: a. Part of the magnetic flux is lost due to the internal voltage breakdown or the magnetic flux compression area is partially closed into a loop; b. The current amplitude will be reduced due to the existence of loop resistance; c. There is a magnetic flux that penetrates into the components of the FCG and cannot be retracted; d. The area where the short-circuit point of the explosive tube and the inductor coil is in poor contact will capture a small amount of magnetic flux; the existence of these factors will eventually affect the performance of the FCG, and it needs to be improved to increase Magnetic flux in the flux compression region

Method used

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  • A kind of magnetic explosive and preparation method thereof
  • A kind of magnetic explosive and preparation method thereof
  • A kind of magnetic explosive and preparation method thereof

Examples

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preparation example Construction

[0056] The preparation method of magnetic explosive of the present invention comprises the following steps:

[0057] Step (1), take raw materials according to the following mass percentage content:

[0058] Solid hard magnetic material powder 10-70%, main explosive 20-90% and adhesive 0-12%;

[0059] Step (2), mixing the components described in step (1) uniformly to make slurry or powder (modeling powder);

[0060] Step (3): Put the slurry or powder in step (2) into a mold, heat and solidify, cast or press in a magnetic field to make the desired shape.

[0061] Specifically, in the embodiment of the present invention, the specific method for uniformly mixing the raw materials into a slurry or powder in step (2) is as follows:

[0062] (2.1), if the adhesive is liquid rubber or liquid resin, use liquid rubber or liquid resin to wet and coat the main explosive, then add solid hard magnetic material powder, and mix evenly to make a pourable slurry;

[0063] (2.2), if the main ...

Embodiment 1

[0071] This embodiment provides a kind of casting type magnetic explosive:

[0072] 1. See Table 1 for the formula of magnetic explosive:

[0073] Table 1 A kind of casting type magnetic explosive formula

[0074]

[0075] 2, the preparation method of magnetic explosive comprises the following steps:

[0076] Step (1): take raw materials according to the formula in Table 1;

[0077] Step (2): Stir the TNT in the raw material under heating in a water bath at 90°C to make it completely melted, then add RDX and NdFeB magnetic powder in turn and stir to mix evenly;

[0078] Step (3): Pour the mixed material into the mold, put it into a DC helical coil sleeve and fix it, connect the coil to DC to generate a magnetic field, and cool the material to room temperature to obtain a shaped explosive.

[0079] 3. Carry out performance test to the product that makes, test result is as follows:

[0080] The magnetic explosive prepared by the embodiment of the present invention has a m...

Embodiment 2

[0082] This embodiment provides a press-packed magnetic explosive.

[0083] 1. Refer to Table 2 for the formula of magnetic explosive.

[0084] Table 2 A kind of press-pack type magnetic explosive formula

[0085]

[0086] 2, the preparation method of magnetic explosive comprises the following steps:

[0087] Step (1): take raw materials according to the formula in Table 2;

[0088] Step (2): dissolving the fluororubber in the raw material with ethyl acetate to make a glue solution with a mass concentration of 15%;

[0089] Step (3): Add the prepared fluororubber glue to the mixing device, then add the main explosive HMX, stir and mix evenly, keep the temperature of the water bath at 65°C during the mixing process, so that the fluororubber glue is evenly coated on the solid material, and then Add iron-chromium-cobalt and neodymium-iron-boron powders, and pass through a 16-mesh sieve for granulation when the mixed material becomes muddy. The obtained modeling powder is d...

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Abstract

The invention relates to a magnetic explosive and a preparation method thereof, and belongs to the technical field of military mixed explosives. The magnetic explosive comprises, in weight percent, 10-70% of solid hard magnetic powder, 20-90% of main explosives and 0-10% of adhesives, wherein the solid hard magnetic powder is permanent magnet material powder and comprises one or combination of twoor more of rare earth permanent magnet materials, metal permanent magnet materials or ferrite permanent magnet materials. The magnetic explosive is formed by heating and curing, casting or pressing,and an external magnetic field is added in the forming process, so that the formed explosive has high maximum magnetic energy product and high coercive force. The explosive has permanent magnetism, and the initial magnetic flux of a magnetic flux compression generator can be improved, so that the power of a magnetic compression current generator is remarkably improved.

Description

technical field [0001] The invention relates to a magnetic explosive and a preparation method thereof, belonging to the technical field of military explosives. Background technique [0002] High-power microwave weapon (HPMW) is a new concept weapon that emits high-power microwaves to directly kill, destroy or disable the target. Its main targets are radar, communication, navigation, identification friend or foe, computer and other electronic equipment and weapons Control and guidance systems can penetrate electronic components, burn enemy electronic equipment, and permanently damage electronic systems. [0003] The high-power microwave bomb is mainly composed of five parts: the initial power supply, the explosive magnetic compression generator, the pulse forming network, the high-power microwave generator and the microwave transmitting antenna. [0004] The initial power supply and the explosive magnetic compression generator constitute the pulse power generator, the purpos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B23/00C06B21/00
CPCC06B21/0025C06B21/0033C06B23/00
Inventor 李忠友王鹏李彦荣曹仕瑾庞爱民熊伟强陈中娥张天福王宁
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY