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Explosive shock wave sensibility regulating method based on crystal orientations

A technology of crystal plane orientation and shock wave, applied in explosives, explosives processing equipment, offensive equipment, etc., can solve problems such as differences in shock wave sensitivity

Active Publication Date: 2013-01-09
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the explosive crystals can be grown oriented according to each dominant crystal plane, and the explosives can be prepared into flaky explosive crystals, the flaky explosives will show serious preferential orientation characteristics during the molding process of the explosives. The shock wave sensitivity test of the oriented explosive grain is carried out according to various directions, and it will be found that there are large differences in the shock wave sensitivity in different directions

Method used

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  • Explosive shock wave sensibility regulating method based on crystal orientations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Select 5000g of flaky HMX crystals and dissolve them in the pouring mobile phase TNT according to a certain formula.

[0023] (2) The mixed pouring explosive liquid in step (1) is slowly poured into a mold with a cavity of 200mm×200mm×200mm.

[0024] (3) The cast explosive in step (2) is slowly cooled and solidified, and demolded to obtain a dimensionally stable explosive preform.

[0025] (4) Observe the forming direction of the flaky crystals on the scanning electron microscope (SEM) of the explosive preform obtained in step (3), and mark the directions of the explosive preform according to the direction of the photo-like crystal parallel to the horizontal plane as the 0-degree plane clear.

[0026] (5) According to the requirements of the shock wave sensitivity test, according to the directions of 0°, 45°, and 90°, cut and process the φ20×40 explosive column suitable for the explosive shock wave sensitivity test from the explosive prefabricated parts marked with...

Embodiment 2

[0029] (1) Select 1000g of flaky TATB crystals and perform compression molding according to a certain formula.

[0030] (2) Observing the forming direction of the flake crystals on the formed explosives obtained in step (1) on a scanning electron microscope (SEM), and clearly marking the formed explosives with the dominant crystal plane parallel to the horizontal plane at 0 degrees.

[0031] (3) According to the requirements of the shock wave sensitivity test, according to the direction of 0 degree, 45 degree and 90 degree, cut and process the φ20×40 explosive column suitable for the shock wave sensitivity test of explosives from the explosive molding with the direction marked in step (2) for shock wave test. And record the shock wave sensitivity clearly.

[0032] (4) According to the difference in the results obtained in step (3), process the explosive molded parts in step (2) according to different angles and directions to obtain explosive columns with different shock waves...

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Abstract

The invention discloses an explosive shock wave sensibility regulating method based on crystal orientations. The method includes that firstly, an explosive prefabticated member is processed, explosive columns with different crystal orientations are obtained according to different processing angles, the shock wave sensibility of the explosive columns is regulated through difference of angles, and the regulation for explosive shock wave sensibility is achieved. According to the method, explosive crystals with different crystal faces can be arranged and combined in different directions, and the shock wave sensibility of the whole explosive columns is regulated according to the shock wave sensibility differences of different crystal faces.

Description

technical field [0001] The invention belongs to a method for improving the performance of explosives, in particular to a method for regulating the shock wave sensitivity of explosives based on crystal plane orientation. Background technique [0002] The shock wave sensitivity of explosives is an important performance in the design and use of explosives. The particle size, shape and density of explosive crystals have a great influence on the shock wave sensitivity of explosives. At present, the regulation of the shock wave sensitivity of explosives is mainly realized through methods such as explosive formula design and explosive crystal quality control. However, these methods require complex procedures and unstable shock wave sensitivity, so it is difficult to truly control the shock wave sensitivity of explosive grains. And in formula regulation, the content of the main explosive is often changed, thereby affecting the final energy and detonation effect. Therefore, how to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B21/00
Inventor 黄辉康彬刘渝徐瑞娟孙杰张浩斌徐金江刘晓峰
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS