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A kind of preparation method of high heat explosive containing cerium hydride

A high-calorie, explosive technology, applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive composition, ammonium perchlorate composition, nitroalkane composition, etc., can solve the problem that the ability of mixed explosives cannot meet the high requirements of modern weapons Energy requirements and other issues, to achieve the effect of easy control, low production cost and energy consumption, and good stability

Active Publication Date: 2016-07-06
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the capacity of traditional mixed explosives cannot meet the high-energy requirements of modern weapons, and to provide a dry granulation preparation of high-explosive heat and high-power mixed explosives and a preparation method

Method used

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  • A kind of preparation method of high heat explosive containing cerium hydride

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Effect test

Embodiment 1

[0026] Dry granulation process to prepare high-calorie explosives, the formula ratio is RDX: AP: CeH 3 :Polyglycidyl azide=50:25:22:3, the steps are as follows: Weigh RDX, coated AP, and coated CeH according to the formula ratio 3 , Polyazide glycidyl ether; add the mixture in (1) to a spacious vessel; add 2.5% adhesive to the vessel containing the mixture to make it moist, knead it evenly with a dry method to form a bolus; 3) Squeeze the pellets on a 10-mesh sieve and granulate them. After the granules under the sieve evaporate a large amount of solvent, use copper chopsticks to loosen them so that the solvent in the inner layer can evaporate; (4) Load the dried granules In a special aluminum or copper vessel, dry at 80°C under vacuum for 8 hours, with a vacuum degree of 0.06; (5) Mix the dried granules with a 20-mesh sieve and an 80-mesh sieve to obtain a mixed explosive. The density is 1.92g / cm 3 , The detonation velocity is 9960m / s, the maximum detonation heat value reaches ...

Embodiment 2

[0028] Dry granulation process to prepare high-calorie explosives, the formula ratio is RDX: AP: CeH 3 : Silicone rubber=65:18:15:2, the steps are as follows: Weigh RDX, coated AP, and coated CeH according to the formula ratio 3 , Silicone rubber; (2) Add the mixture in (1) to a spacious vessel; add 2% adhesive to the vessel containing the mixture to make it moist, knead it evenly with a dry method to form a bolus; (3) ) Squeeze the pellets on a 10-mesh sieve and pellet them. After the pellets under the sieve evaporate a large amount of solvent, use copper chopsticks to loosen them so that the inner layer of solvent evaporates; (4) Pack the dry pellets into special In an aluminum or copper vessel, dry at 40°C under vacuum for 6 hours with a vacuum degree of 0.02; (5) Mix the dried granules with a 20-mesh sieve and an 80-mesh sieve to obtain a mixed explosive. The density is 2.42g / cm 3 , The detonation speed Dv=10080m / s, the maximum detonation heat value reaches 19820kJ / kg, and t...

Embodiment 3

[0030] Dry granulation process to prepare high-calorie explosives, the formula ratio is HMX: acetone peroxide tetramer: CeH 3 : Silicone rubber=65:18:15:2, the steps are as follows: Weigh HMX, coated acetone peroxide tetramer, and coated CeH according to the formula ratio 3 , Silicone rubber; (2) Add the mixture in (1) to a spacious vessel; add 2.3% of the adhesive to the vessel containing the mixture to make it moist, knead it evenly with a dry method to form a bolus; (3) ) Squeeze the pellets on a 10-mesh sieve and pellet them. After the pellets under the sieve evaporate a large amount of solvent, use copper chopsticks to loosen them so that the inner layer of solvent evaporates; (4) Pack the dry pellets into the special In an aluminum or copper vessel, dry at 80°C for 8 hours under vacuum conditions with a vacuum degree of 0.08; (5) Mix the dried granules with a 20-mesh sieve and an 80-mesh sieve to obtain a mixed explosive. The density is 2.51g / cm 3 , The detonation speed Dv...

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Abstract

According to the invention, metal hydride and an oxidizing agent are mixed, and under the action of an adhesive, the mixture is granulated to prepare a high-heat mixed explosive. The explosive contains the following components, by mass, 50-80% of cyclonite (RDX) and octogen (HMX) or hexanitrohexaazaisowurtzitane (CL-20), 10-25% of an oxidizing agent, 10-25% of metal hydride and 1.0-5% of a binder. According to the invention, metal hydride is added into the explosive for the first time so as to obtain the high-heat high-power explosive with the value of explosion heat being 14000-22000kJ / kg. The explosive has excellent sensitivity, and storage life of the explosive reaches 30 years. The explosive is suitable for charge by using press-fitting technology.

Description

Technical field: [0001] The invention relates to a light rare earth metal hydride and explosive mixed dry granulation technology to prepare high calorific value explosives, and belongs to the field of energetic materials. Specifically related to the preparation of high calorific and high power mixed explosives. Background technique: [0002] Explosives are an indispensable energy source in industrial and agricultural production, especially in military technology. The ability to produce destructive and lethal effects is a significant feature of this type of energy and a key factor in determining the power of a weapon system. [0003] At present, most of the explosives used in industrial and agricultural weapons and equipment in various countries in the world are mixed explosives, with greater selectivity and adaptability. With the change of battlefield targets and the increasing protection capabilities, the damage capability of ammunition is constantly developing in a greater dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B29/22C06B25/40C06B25/34
Inventor 刘吉平于敦波汪玲李扩社刘晓波罗阳谢佳君
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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