A dual-element melting and casting explosive and its additive manufacturing process

A melting and casting explosive and dual-element technology, which is applied in the field of explosives, can solve the problems of many preparation process restrictions and the energy level of melting and casting explosives needs to be further improved, and achieve the effect of simple preparation process, low explosive sensitivity and high precision

Active Publication Date: 2022-05-24
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a dual-element melting and casting explosive to solve the technical problem in the prior art that the energy level of the melting and casting explosive in the prior art needs to be further improved
[0006] The present invention also provides a material-additive preparation process of dual-element melting and casting explosives, so as to solve the technical problem that the traditional preparation process in the prior art has many restrictive conditions

Method used

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  • A dual-element melting and casting explosive and its additive manufacturing process

Examples

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Effect test

Embodiment 1

[0046] The present embodiment provides a dual-element molten-cast explosive, which is an inner and outer coaxial charge, the inner-layer charge adopts a TNT-based high-energy explosive, and the outer-layer charge adopts a DNAN-based high-security explosive;

[0047] The mass ratio of the inner charge to the outer charge is 1:1.

[0048] TNT-based high-energy explosive, in mass percentage, consists of the following raw materials: 18% of TNT, 80% of HMX, and 2% of microcrystalline wax;

[0049] The DNAN-based high-security explosive, in terms of mass percentage, is composed of the following raw materials: DNAN is 18%, HMX is 80%, and microcrystalline wax is 2%.

[0050] The additive manufacturing process of the dual-element molten-cast explosive in this embodiment is to obtain the inner and outer layers of the dual-element molten-cast explosive molding grain by stacking layer by layer through an additive manufacturing molding process. Specifically, the process includes the foll...

Embodiment 2

[0064] The present embodiment provides a dual-element molten-cast explosive, which is an inner and outer coaxial charge, the inner charge adopts a TNT-based high-energy explosive, and the outer-layer charge adopts a DNAN-based high-security explosive;

[0065] The mass ratio of the inner charge to the outer charge is 1:1.

[0066] TNT-based high-energy explosive, in mass percentage, is composed of the following raw materials: 16% of TNT, 83% of HMX, and 1% of microcrystalline wax;

[0067] The DNAN-based high-security explosive, in terms of mass percentage, is composed of the following raw materials: DNAN is 20%, HMX is 78%, and microcrystalline wax is 2%.

[0068] The additive preparation process of the binary molten-cast explosive in this embodiment is basically the same as that of Example 1, and the only difference is that the formula ratio of the above-mentioned binary molten-cast explosive is different.

[0069] See Table 1 for the performance test results of this embodi...

Embodiment 3

[0071] The present embodiment provides a dual-element molten-cast explosive, which is an inner and outer coaxial charge, the inner charge adopts a TNT-based high-energy explosive, and the outer-layer charge adopts a DNAN-based high-security explosive;

[0072] The mass ratio of the inner charge to the outer charge is 1:1.

[0073] TNT-based high-energy explosive, in mass percentage, is composed of the following raw materials: 20% of TNT, 78% of HMX, and 2% of microcrystalline wax;

[0074] The DNAN-based high-security explosive, in terms of mass percentage, is composed of the following raw materials: DNAN is 15%, HMX is 83%, and microcrystalline wax is 2%.

[0075] The additive preparation process of the binary molten-cast explosive in this embodiment is basically the same as that of Example 1, and the only difference is that the formula ratio of the above-mentioned binary molten-cast explosive is different.

[0076] See Table 1 for the performance test results of this embodi...

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Abstract

The invention provides a dual-element melting and casting explosive and its additive preparation process. The dual-element melting and casting explosive is a coaxial charge of the inner and outer layers, the inner layer charge adopts TNT-based high-energy explosive, and the outer layer charge adopts DNAN-based high-safety explosive ; In TNT-based high-energy explosives: TNT is 15%-25%, HMX is 75%-85%, microcrystalline wax is 0-5%; DNAN-based high-security explosives: DNAN is 15%-25%, HMX is 75% to 85%, microcrystalline wax is 0 to 5%. The mass ratio of the inner charge to the outer charge is 1:1. The dual-element melting and casting explosive of the present invention has a high energy level. Compared with Octol, the detonation velocity is increased by more than 2.9%, and the energy density is increased by more than 3.8%. Safe for use in warheads. The preparation process of the present invention is formed through additive manufacturing, and has the characteristics of simple preparation process, safety and reliability, and the ability to form complex structures, etc., and has good consistency in forming density and high precision.

Description

technical field [0001] The invention belongs to the field of explosives and relates to additive preparation, in particular to a binary melting and casting explosive and an additive preparation process. Background technique [0002] Among military mixed explosives, molten-cast explosives have the advantages of high energy level, good process adaptability and low cost, and are currently widely used in various military services. Octol (TNT / HMX) explosive is a typical representative of metal-accelerated melt-casting explosive. It has the advantages of high detonation speed and high energy density. It has been widely used in killing warheads and shaped warheads, but its safety performance is poor. It is prone to the phenomenon of burning to detonation under thermal stimulation, which is difficult to meet the requirements of today's high-energy insensitive warheads, which limits its further popularization and application. [0003] In 1987, in order to adapt to the policy of insen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06B21/00B33Y70/00B33Y10/00B33Y50/02
CPCC06B25/34C06B21/005B33Y70/00B33Y10/00B33Y50/02
Inventor 蒋秋黎罗一鸣王红星杨斐王玮巨荣辉张蒙蒙雷伟
Owner XIAN MODERN CHEM RES INST
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