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Combustible glue for destroying unexploded bullet and preparation method and application

A technology of unexploded bombs and colloids, applied in blasting and other directions, can solve problems such as cumbersome steps, time-consuming and labor-consuming, and increase production costs, and achieve the effect of improving traditional application methods, expanding application fields, and being easy to operate

Inactive Publication Date: 2019-01-11
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the self-propagating reaction between Al powder and metal oxides, molten liquid metal and Al 2 o 3 , the generated metal element is easy to disperse in the slag in the form of metal particles, which is not conducive to melting through the metal and maintaining the temperature
[0005] In addition, since thermite exists in the form of powder, when using it to treat unexploded bombs, it is necessary to use a special mold to solidify the powder. The steps are cumbersome, time-consuming and labor-intensive, and increase production costs. Thermite brings new pressure and also limits the wide application of thermite

Method used

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  • Combustible glue for destroying unexploded bullet and preparation method and application
  • Combustible glue for destroying unexploded bullet and preparation method and application
  • Combustible glue for destroying unexploded bullet and preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]Weigh 17.9g aluminum powder and 17.5g Fe powder with a particle size of 80~140 mesh respectively 3 o 4 , 22.3gCuO, 17.6gCr 2 o 3 and 8.2gKNO 3 , put these five components into a mixer and mix evenly to obtain a mixture, put the mixture into a constant temperature box at 75°C~85°C, dry it for 2~3 hours, and take it out to obtain a composite thermite.

[0050] Put 1.8g of gelatin granules into 18.2g of water, heat it in a water bath at 70°C to 80°C while stirring with electromagnetic force, until it is completely gelatinous, and then lower it to room temperature to make an aqueous gelatin solution.

[0051] The composite thermite is added to the gelatin solution, and stirred with a mixer until the mixture is evenly mixed to prepare a bonded wet powder. Put the bonded wet powder into the wet granulation device (extrusion spheronizer) to prepare 1~2mm spherical composite thermite particles, and dry them at 75°C~85°C for 12h.

Embodiment 2

[0053] Put 2.2g of gelatin particles into 17.8g of water to make an aqueous gelatin solution; other steps are the same as in Example 1.

Embodiment 3

[0055] Put 2.6g of gelatin particles into 17.4g of water to make an aqueous gelatin solution; other steps are the same as in Example 1.

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Abstract

The invention provides a combustible glue for destroying an unexploded bullet and a preparation method and application. The combustible glue for destroying the unexploded bullet comprises a colloidalbinder and a composite aluminothermic agent particle, the mass ratio of the colloidal binder and the colloidal binder to the composite aluminothermic agent particle is 15-20:100, and the combustible glue for destroying the unexploded bullet is prepared by coating a colloid binder on the outer surface of the composite aluminothermic agent particles less than or equal to 3 mm; the colloid adhesive comprises 23-30 wt% of liquid nitrile rubber, 18-23 wt% of KNO3, 43-57 wt% of collodion and 2-4 wt% of Mg powder. The preparation method comprises the following steps that firstly, the composite aluminum heat agent powder is prepared into particles, and then the outer surface of the composite aluminum hot particle is coated with a colloidal binder to prepare the combustible glue. The preparation method is simple and convenient, the operation is easy, the aluminum powder in the composite aluminum heat agent is in close contact with the oxide, the reaction spreading rate is increased, the reaction is more stable, the burning capacity is enhanced, the traditional application mode of the composite aluminum heat agent is improved, the limitation of the mold is eliminated, and the application field of the composite aluminum heat agent is expanded.

Description

technical field [0001] The invention relates to a combustible glue, in particular to a combustible glue for destroying unexploded bombs and its preparation method and application. Background technique [0002] With the development of a large number of actual combat training, the production and destruction of unexploded ordnance has always had great potential safety hazards, especially for small unexploded ordnance, due to its large application base, the number of unexploded ordnance produced is large, and it is light in weight and easy to recycle. The value is small, the range of explosion damage is small, and the shell is thin, so it is often treated by in-situ destruction. The destruction methods of conventional ammunition can be roughly divided into three categories: explosion method, combustion method and decomposition method. Generally, these three methods can only be used when the scrapped ammunition still has high safety and will not explode during transportation and ...

Claims

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Application Information

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IPC IPC(8): F42D5/04
CPCF42D5/04
Inventor 甄建伟贾栓柱杜仕国朱艳辉陈玉丹闫军翟研研张玉令张芳
Owner ARMY ENG UNIV OF PLA
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