Preparation method of high-heat explosive containing cerium hydride

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 the dry granulation technology of mixing light rare earth metal hydrides and explosives to prepare explosives with high calorific value, and belongs to the field of energetic materials. It specifically relates to the preparation of high calorific value and high power mixed explosives. Background technique:

[0002] Explosives are an indispensable source of energy in industrial and agricultural production, especially in military technology. The ability to produce destructive and lethal effects is a distinctive feature of this type of energy, and is 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 the world are mixed explosives, which have great selectivity and adaptability. With the change of battlefield objectives and the increasing protection ability, the damage ability of ammunition is constantly developing in ...

Examples

Embodiment 1

[0026] Dry granulation process to prepare high-calorie explosives, the formula ratio is RDX:AP:CeH 3 : polyazide glycidyl ether = 50: 25: 22: 3, the steps are as follows: weigh RDX, coated AP, and coated CeH according to the formula ratio 3 , polyazidoglycidyl ether; the mixture in (1) is added in the capacious vessel; Add 2.5% adhesive to the vessel containing the mixture, make it moist, knead evenly by dry method, and make a medicine group; ( 3) Squeeze and granulate the drug group on a 10-mesh sieve. When the drug particles under the sieve volatilize a large amount of solvent, loosen them with copper chopsticks so that the inner layer solvent can volatilize; (4) Put the drug particles with dry surface into In a special aluminum or copper vessel, dry at 80°C for 8 hours under vacuum, with a vacuum degree of 0.06; (5) Mix the dried powder with 20-mesh undersize and 80-mesh oversize to obtain a mixed explosive. The density is 1.92g / cm 3 , the detonation velocity is 9960m / s, ...

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, coated CeH according to the formula ratio 3 , silicone rubber; (2) add the mixture in (1) to a spacious container; add 2% adhesive to the container containing the mixture to make it moist, knead it evenly by dry method, and make a drug group; (3 ) Squeeze and granulate the drug group on a 10-mesh sieve. When the drug particles under the sieve volatilize a large amount of solvent, loosen it with copper chopsticks so that the inner layer solvent can volatilize; (4) put the drug particles with dry surface into special In an aluminum or copper vessel, dry at 40°C for 6 hours under vacuum, with a vacuum degree of 0.02; (5) Mix the dried pellets with 20-mesh undersize and 80-mesh oversize to obtain a mixed explosive. The density is 2.42g / cm 3 , the detonation velocity Dv=10080m / s, the highest detonation...

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, coated CeH 3 , silicone rubber; (2) add the mixture in (1) to a spacious container; add 2.3% adhesive to the container containing the mixture to make it moist, knead it evenly by dry method, and make a medicine group; (3 ) Squeeze and granulate the drug group on a 10-mesh sieve. When the drug particles under the sieve volatilize a large amount of solvent, loosen it with copper chopsticks so that the inner layer solvent can volatilize; (4) put the drug particles with dry surface into special In an aluminum or copper vessel, dry at 80°C for 8 hours under vacuum, with a vacuum degree of 0.08; (5) Mix the dried powder with 20-mesh undersize and 80-mesh oversize to obtain a mixed explosive. The density is 2.51g / cm 3 , the detonation velocity Dv=11100m / s, th...

Technical field:

[0001] The invention relates to the dry granulation technology of mixing light rare earth metal hydrides and explosives to prepare explosives with high calorific value, and belongs to the field of energetic materials. It specifically relates to the preparation of high calorific value and high power mixed explosives. Background technique:

[0002] Explosives are an indispensable source of energy in industrial and agricultural production, especially in military technology. The ability to produce destructive and lethal effects is a distinctive feature of this type of energy, and is 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 the world are mixed explosives, which have great selectivity and adaptability. With the change of battlefield objectives and the increasing protection ability, the damage ability of ammunition is constantly developing in ...

Examples

Embodiment 1

[0026] Dry granulation process to prepare high-calorie explosives, the formula ratio is RDX:AP:CeH 3 : polyazide glycidyl ether = 50: 25: 22: 3, the steps are as follows: weigh RDX, coated AP, and coated CeH according to the formula ratio 3 , polyazidoglycidyl ether; the mixture in (1) is added in the capacious vessel; Add 2.5% adhesive to the vessel containing the mixture, make it moist, knead evenly by dry method, and make a medicine group; ( 3) Squeeze and granulate the drug group on a 10-mesh sieve. When the drug particles under the sieve volatilize a large amount of solvent, loosen them with copper chopsticks so that the inner layer solvent can volatilize; (4) Put the drug particles with dry surface into In a special aluminum or copper vessel, dry at 80°C for 8 hours under vacuum, with a vacuum degree of 0.06; (5) Mix the dried powder with 20-mesh undersize and 80-mesh oversize to obtain a mixed explosive. The density is 1.92g / cm 3 , the detonation velocity is 9960m / s, ...

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, coated CeH according to the formula ratio 3 , silicone rubber; (2) add the mixture in (1) to a spacious container; add 2% adhesive to the container containing the mixture to make it moist, knead it evenly by dry method, and make a drug group; (3 ) Squeeze and granulate the drug group on a 10-mesh sieve. When the drug particles under the sieve volatilize a large amount of solvent, loosen it with copper chopsticks so that the inner layer solvent can volatilize; (4) put the drug particles with dry surface into special In an aluminum or copper vessel, dry at 40°C for 6 hours under vacuum, with a vacuum degree of 0.02; (5) Mix the dried pellets with 20-mesh undersize and 80-mesh oversize to obtain a mixed explosive. The density is 2.42g / cm 3 , the detonation velocity Dv=10080m / s, the highest detonation...

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, coated CeH 3 , silicone rubber; (2) add the mixture in (1) to a spacious container; add 2.3% adhesive to the container containing the mixture to make it moist, knead it evenly by dry method, and make a medicine group; (3 ) Squeeze and granulate the drug group on a 10-mesh sieve. When the drug particles under the sieve volatilize a large amount of solvent, loosen it with copper chopsticks so that the inner layer solvent can volatilize; (4) put the drug particles with dry surface into special In an aluminum or copper vessel, dry at 80°C for 8 hours under vacuum, with a vacuum degree of 0.08; (5) Mix the dried powder with 20-mesh undersize and 80-mesh oversize to obtain a mixed explosive. The density is 2.51g / cm 3 , the detonation velocity Dv=11100m / s, th...

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