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32results about "Nitrated pentaerythritol explosive compositions" patented technology
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Low toxicity primer compositions for reduced energy ammunition
InactiveUS20100300319A1Increased heat generationHigh sensitivityAmmunition projectilesShotgun ammunitionToxic materialOxidizing agent
A primer composition with reduced toxicity suited for reduced-energy ammunition comprises bismuth (III) oxide as the principal oxidizer and contains a portion of propellant composition mixed therein. This composition may also be used in a cartridge which is otherwise substantially free of any other propellant compound and preferably produces a residue which is substantially free of toxic substances.
Owner:GENERAL DYNAMICS ORDNANCE & TACTICAL SYST CANADA VALLEYFIELD INC
Systems and Methods for Authenticating an Online User Using a Secure Authorization Server
ActiveUS20170142108A1Computer security arrangementsNitrated aromatic explosive compositionsComputerized systemClient-side
A secure authorization server computer system for verifying an identity of an end-user is provided. The computer system is programmed to receive, from a computing client, an authentication request at an authorization component. The authentication request includes a secure authentication request identifier. The computer system is also programmed to validate the authentication request at the authorization component by validating the secure authentication request identifier. The computer system is further programmed to transmit an authentication response from the authorization component to the computing client. The authentication response includes an authorization code. The authorization code represents a validation of the authentication request.
Owner:MASTERCARD INT INC
Method and device for preparing nanometer-eutectic energetic material
InactiveCN103977593AFine granularityUniform grainNitrated aromatic explosive compositionsSolution crystallizationSolventHigh pressure
The invention discloses a method and a device for preparing a nanometer-eutectic energetic material. The method comprises the following steps that an energetic material is dissolved in a good solvent and then is transported into a temperature gradient heating furnace through inert gases in an ultrasonic spray manner, and then nanometer-eutectic energetic material crystals are collected through a high-voltage electrostatic field and the good solvent and the inert gases are cooled and recovered. The device used in the method is formed by sequentially communicating an ultrasonic device, the temperature gradient heating furnace, the high-voltage electrostatic field and a receiving device in a sealing manner. The method can prepare the energetic material crystals with the crystal size being 20-1000nm, is wide in preparation range, and can realize continuous operation. The preparation method is simple in procedures and is easy to operate, reaction conditions are mild and are easily controlled, and the method can be applied to various kinds of eutectic explosives. The crystal grains of the prepared nanometer-eutectic energetic explosives are uniform, and the purity is larger than 99.9 percent. Waste liquid in the preparation procedures is recovered, and the minimum pollution to the environment is realized.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Non-toxic percussion primers and methods of preparing the same
A percussion primer composition including at least one explosive, at least one nano-size non-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
Owner:FEDERAL CARTRIDGE
Explosives with embedded bodies
InactiveUS6508177B1High densitySuppress formation of voidBlasting cartridgesNitrated pentaerythritol explosive compositionsEngineeringMolten material
An explosive charge such as a cast booster charge (10, 110, 210) includes an explosive charge (14, 114, 214) having a first explosive matrix material (114a, 214a) with discrete bodies (118, 218) of a second material embedded therein. In some embodiments, discrete bodies may comprise explosive material and the first explosive matrix material (114a, 214a) may be more sensitive to initiation than the explosive material of the discrete bodies (118, 218). In a separate aspect of the invention, the discrete bodies may have a minimum dimension of at least 1 millimeter or, optionally, 1.6 millimeter, regardless of the explosive properties of the material therein. In a particular embodiment, discrete bodies may be shaped as cylindrical pellets rounded at at least one end. The cast booster charge (10, 110, 210) may be produced by melting the first explosive, disposing discrete bodies therein and cooling the molten material to solid form.
Owner:DYNO NOBEL INC
Method for preparing ordered porous energetic crystal material
ActiveCN103044173ASimple processMild reaction conditionsExplosive working-up apparatusNitrated pentaerythritol explosive compositionsCrystal morphologyRoom temperature
The invention discloses a method for preparing an ordered porous energetic crystal material. The method comprises the following steps of: dissolving a certain amount of energetic materials in a good solvent at room temperature; adding a certain amount of crystal morphology control agents into the solution in the previous step, stirring, dissolving, and slowly adding the solution in the previous step into a poor solvent of the energetic materials and the crystal morphology control agents under the magnetic stirring conditions; continuously stirring the solution in the previous step for a certain time, filtering, and obtaining a composite material of the energetic materials and the crystal morphology control agents; adding the obtained composite material into the solvent, wherein the solvent is a poor solvent of the energetic materials and a good solvent of the crystal morphology control agents; repeatedly washing and removing the crystal morphology control agents; and drying to obtain pure ordered porous energetic crystal material. The preparation method is simple in process flow and mild in reaction conditions and suitable for various energetic materials, the reaction conditions are easy to control, and the prepared ordered porous energetic crystal material has the purity of over 99.5 percent.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
Micro-priming powder for detonator
InactiveCN101440011ASimple structureHigh working reliabilityNitrated pentaerythritol explosive compositionsNitrated acyclic/alicyclic/heterocyclic amine explosive compositionsDetonatorAdhesive
The invention relates to micro initiating explosive for an exploder, and solves the problems of insecurity of the exploder with the initiating explosive and high cost of the exploder without the initiating explosive. The micro initiating explosive comprises more than one high explosive and more than one initiating explosive. The high explosive comprises hexogen and PETN; the initiating explosive comprises dinitrodiazophenol, lead azide, lead trinitroresorcinate, nickel hydrazine nitrate and perchloric acid tricarbohydrazide cadmium complex; and the more than one high explosive and the more than one initiating explosive are mixed to prepare the micro initiating explosive. Adhesive and surfactant can also be used. The micro initiating explosive has the advantages that the micro initiating explosive can reduce the content of the initiating explosive by 30 to 60 percent compared with the conventional exploder filled with the explosive, lower 20 to 30 percent of cost compared with the prior exploder, improve safety during assembly of the exploder, reduce static electricity, friction, impact and light and heat sensitivity while ensuring initiating force and flame sensitivity, improve safety during production, transportation, storage and use of the exploders, can reduce explosive feeding amount of the exploder, and improve free-running property of preparations.
Owner:ANHUI UNIV OF SCI & TECH
Non-toxic percussion primers and methods of preparing the same
A percussion primer composition including at least one explosive, at least one nano-size non-coated fuel particle having natural surface oxides thereon, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
Owner:FEDERAL CARTRIDGE
Process For Producing Fine Diamond and Fine Diamond
InactiveUS20090285744A1Good electrical propertiesImprove mechanical propertiesMaterial nanotechnologyPolycrystalline material growthWear particleAliphatic hydrocarbon
The present invention relates to a process for producing a fine diamond characterized by that an explosive composition containing a compound having an aliphatic hydrocarbon ring with 4 to 15 carbons, a fullerenes or a tubular or fiber carbon nanostructure having a diameter of 1 to 100 nm as a carbon raw material is exploded for explosive synthesis, and a fine diamond obtained by said process; the ultrafine particulate diamond of 1 to 3 nm is expected, as a single nano diamond, for application of the fields such as ultrafine processing, the uniform, spherical fine particulate diamond of 0.01 to 100 μm is expected as abrasive grains for polishing in precise processing and the like, and the needle diamond is expected for application in various sensors and the like.
Owner:NIPPON KAYAKU CO LTD
Non-toxic and non-corrosive ignition mixture
InactiveUS6964287B1High sensitivityEasy feedingLoomsNitroparaffin explosive compositionsNitrocellulosePolyvinyl alcohol
A non-toxic and non-corrosive ignition mixture is created by combining the energy system and the pyrotechnic system. The energy system comprises a high explosive from the groups of nitroesters and nitramines and a senzibiliser of the type of tetrazene or derivatives of tetrazoles for its activation. The pyrotechnic system comprises an oxidizing agent from the group of oxides and peroxides of metals, from the group of salts of inorganic oxygen-containing acids, and a fuel which is amorphous boron. The mixture is supplemented with a friction agent which is preferably ground glass. Nitrocellulose, polyvinyl alcohol and acacia gum are used as bonding agents. Mixtures are utilizable in the field of ammunition production for the production of primers, especially for central ignition cartridges.
Owner:SELLIER & BELLOT
Porous silicon-based explosive
An initiator explosive for detonating a second explosive that includes nanocrystalline silicon containing a plurality of pores and a solid state oxidant disposed within said pores.
Owner:RGT UNIV OF CALIFORNIA
Explosion hardening explosive and preparation method thereof
ActiveCN105693439AGood compatibilityReduce volatilityExplosive working-up apparatusNitrated pentaerythritol explosive compositionsMetallurgyTributyl citrate
The invention discloses an explosion hardening explosive and a preparation method thereof. The explosion hardening explosive is prepared from the following raw materials in parts by weight: 40-80 parts of cyclonite and / or pentaerythrite tetranitrate, 10-30 parts of tributyl acetocitrate and 10-30 parts of nitrocotton. The explosion hardening explosive has the beneficial effects that tributyl acetocitrate and nitrocotton as raw materials of the explosion hardening explosive have high intermiscibility; meanwhile, tributyl acetocitrate is non-toxic and is low in volatility; the finished explosive is high in water resistance and plasticity; the explosion hardening explosive contains additives; due to the addition of the additives, the low-temperature plasticity of the explosive is improved, so that the explosive is uniform in density, high in plasticity and easy to tablet; the explosion hardening explosive is stable in explosion property, high in explosion velocity, high in strength, excellent in normal-temperature and low-temperature plasticity, easy to bend and high in in adhesion and application to workpieces under normal temperature and low temperature conditions, and is capable of effectively ensuring the hardening effect of the workpieces.
Owner:HAIDENG TECH SERVICES DALIAN CO LTD
Systems and methods for authenticating an online user using a secure authorization server
ActiveUS9800580B2Digital data protectionNitrated aromatic explosive compositionsComputerized systemClient-side
Owner:MASTERCARD INT INC
Initiating explosive actuator adopting low detonation velocity charging to reduce incidental impact and pollution
ActiveCN111734526AReduce collateral impactReduce leakageInternal combustion piston enginesPowdered engine fuelsPotassium nitrateExplosive Agents
The invention discloses an initiating explosive actuator adopting low detonation velocity charging to reduce incidental impact and pollution. The initiating explosive actuator comprises a short circuit sleeve, an insulating sleeve, a sealant, an electric igniter, a reinforcing ring, a tube shell, a driving explosive, a gasket, a sealing ring and a piston, wherein the electric igniter is composed of an electrode plug, igniting powder, an igniter wire and two conducting wires. The igniting powder is trinitro-resorcinol lead or other weak initiating explosives and ignition powder. The driving explosive is a low-detonation-speed and low-power explosive and can be a hexogen or pentaerythrite tetranitrate-based granular foam explosive, modified black powder, a boron / potassium nitrate ignition explosive, or a pentaerythrite tetranitrate-based PBXN301 mixed explosive and the like. The initiating explosive agent in the traditional initiating explosive actuator is partially or completely replaced by a low-power agent, so that the incidental impact and pollution of the initiating explosive actuator during working can be reduced, the reliability of fuses, ammunition and spacecrafts is improved, and the intrinsic safety of matched products is improved.
Owner:NANJING UNIV OF SCI & TECH
Core of water-resistant detonating cord and method for preparing core
InactiveCN108892596AImprove water resistanceImprove stabilityNon-explosive stabilisersExplosive working-up apparatusWater bathsParaffin oils
The invention discloses a core of a water-resistant detonating cord and a method for preparing the core. The core comprises, by weight, 15-20 parts of paraffin oil and petroleum ether saturated solution, 79.4-84.6 parts of pentaerythrite tetranitrate and 0.4-0.6 part of graphite powder. The method for preparing the core includes adding the paraffin oil and petroleum ether saturated solution and the graphite powder into the pentaerythrite tetranitrate according to raw material ratios; uniformly stirring and mixing the paraffin oil and petroleum ether saturated solution, the graphite powder andthe pentaerythrite tetranitrate with one another to obtain mixtures; granulating the mixtures; drying granules in water-bath drying tanks at the drying temperatures of 45-50 DEG C to obtain the core of the water-resistant detonating cord. The core and the method have the advantages that formulas for the core are improved, accordingly, the water resistance of the core can be integrally improved, the stability of the core can be reinforced, the storage life can be prolonged, and the explosion initiation and propagation performance of the core can be guaranteed; the water resistance and the stability of the core can be improved to the greatest extent by the aid of the method for preparing the core.
Owner:JIANGXI GANZHOU GUOTAI SPECIALTY CHEM
Method for preparing ordered porous energetic crystal material
ActiveCN103044173BSimple processMild reaction conditionsExplosive working-up apparatusNitrated pentaerythritol explosive compositionsCrystal morphologyRoom temperature
The invention discloses a method for preparing an ordered porous energetic crystal material. The method comprises the following steps of: dissolving a certain amount of energetic materials in a good solvent at room temperature; adding a certain amount of crystal morphology control agents into the solution in the previous step, stirring, dissolving, and slowly adding the solution in the previous step into a poor solvent of the energetic materials and the crystal morphology control agents under the magnetic stirring conditions; continuously stirring the solution in the previous step for a certain time, filtering, and obtaining a composite material of the energetic materials and the crystal morphology control agents; adding the obtained composite material into the solvent, wherein the solvent is a poor solvent of the energetic materials and a good solvent of the crystal morphology control agents; repeatedly washing and removing the crystal morphology control agents; and drying to obtain pure ordered porous energetic crystal material. The preparation method is simple in process flow and mild in reaction conditions and suitable for various energetic materials, the reaction conditions are easy to control, and the prepared ordered porous energetic crystal material has the purity of over 99.5 percent.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
Flexible dilute explosive device
ActiveUS7789982B1Low costShorten the timeNon-explosive fillers/gelling/thickening agentsLoomsVolumetric Mass DensityEngineering
A flexible dilute explosive device is provided that includes an explosive material, such as pentaerythritol tetranitrate (PETN), combined with a non-reactive matrix material, such as light-weight polymer beads, and the combination is held in flexible packaging. The flexible packaging includes fabric, antistatic, evacuated and plastic housings. The flexible dilute explosive device can be applied to any contoured shape in the field. It has a total density that is typically between 5 to 10% greater than its explosive density and can be reliably detonated at lower explosive densities. By using different packaging methods, the flexible dilute explosive device can be made to have a fixed explosive density, or a field tailored explosive density using a variable volume housing. It can have a reduced explosive density by adding inert foam blocks to the combination, having an overall volumetric explosive density reduced to 2.5 lb / ft3 (0.04 g / cm3).
Owner:ACCURATE ENERGETIC SYST LLC
Antistatic treatment of eco-friendly cold firework chemical and preparation method thereof
PendingCN111056886ANothing producedAchieve preparationNitrated pentaerythritol explosive compositionsNon-explosive/non-thermic compositionsCelluloseCyclohexanone
The invention relates to an eco-friendly antistatic smokeless sulfur-free cold firework chemical, and belongs to the field of environment-friendly pyrotechnic compositions. The cold firework chemicalcomprises the components: nano aluminum powder, modified pentaerythritol tetranitrate, nitrobamboo cellulose, cyclohexanone peroxide, propylene glycol stearate, dimethyl diphenyl urea, magnesium stearate, dibutyl phthalate, zinc laurate soap and shellac. The nano aluminum powder and the modified pentaerythritol tetranitrate powder are used as main components, so that safety and reliability are realized, and the combustion temperature is low; the components do not contain chlorine elements and sulfur elements, cyclohexanone peroxide is introduced, sufficient combustion is guaranteed, no toxic or harmful smoke is generated, and preparation of the smokeless and sulfur-free cold firework chemical can be truly achieved.
Owner:江西吉润花炮新材料科技有限公司
Low-energy flexible detonating cord
PendingCN111138237AReduce doseReduce consumptionNitrated pentaerythritol explosive compositionsFuse detonationPolyesterExplosive Agents
The invention discloses a low-energy flexible detonating cord which comprises a core wire. An explosive core is attached to the outer surface of the core wire; the outer surface of the explosive coreis wrapped with a polyester film; the outer surface of the polyester film is wound with two layers of polyester silk; and the outer surface of the polyester silk is coated with an outer coating. The low-energy flexible detonating cord releases less energy after blasting; according to the invention, surrounding blasting vibration is small, blasting noise is low, the blasting effect is good, the product flexibility is improved, the bending performance is improved, the overlapping effect of a main line and a side branch line in engineering blasting is improved, the propagation interruption phenomenon caused by untight overlapping in engineering blasting is reduced, and the construction reliability is improved.
Owner:陕西渭南庆华化工有限公司
2-nitro-2-azaadamantane-4, 6, 8-triol trinitrate and preparation method thereof
PendingCN114195787ARaw materials are easy to getThe synthesis steps are simpleOrganic chemistryNitrated pentaerythritol explosive compositionsNonaneDiketone
The invention discloses 2-nitro-2-aza adamantane-4, 6, 8-triol trinitrate and a preparation method of the 2-nitro-2-aza adamantane-4, 6, 8-triol trinitrate. According to the method, 9-hydroxyl bicyclo [3.3. 1] nonane-2, 6-diketone is used as a raw material, the 2-nitro-2-azaadamantane-4, 6, 8-triol trinitrate is finally synthesized through the steps of hydrazone formation, elimination, epoxidation, cyclization, acetylation, nitration and the like, the compound has higher density and energy, the synthesis method is simple, the yield is high, and the performance is stable.
Owner:NANJING UNIV OF SCI & TECH
Micro-priming powder for detonator
InactiveCN101440011BSimple structureHigh working reliabilityNitrated pentaerythritol explosive compositionsNitrated acyclic/alicyclic/heterocyclic amine explosive compositionsDetonatorMedicine
Owner:ANHUI UNIV OF SCI & TECH
GMG explosion hardening explosive
InactiveCN104892332AHigh detonation velocityHigh intensityExplosive working-up apparatusNitrated pentaerythritol explosive compositionsCITRATE ESTERMetallurgy
GMG explosion hardening explosive relates to the technical field of explosives, and in particular relates to a special explosive for high-manganese steel pieces explosion hardening treatment. The invention mainly addresses the problem that the effect of a mechanical method for high manganese steel piece hardening is not ideal. The GMG explosion hardening explosive comprises, by weight, 40-80% of a main explosive cyclonite, 10-30% of a high-molecular material and 10-30% of a plasticizer. The high-molecular material is a collodion; the plasticizer is acetyl tributyl citrate; the plasticizer is triacetin; the plasticizer is tributyl acetyl citrate and triglyceride triacetate in the weight ratio of 1:1. A density additive accounts for 0.1% of the total weight of cyclonite and the high-molecular material. The explosive has the advantage of good hardening effect on high-manganese steel pieces after explosion.
Owner:LIAONING QINGYANG CIVIL EXPLOSIVE EQUIP
Thermostable indoor set-off smokeless sulfur-free cold firework medicament and preparation method thereof
PendingCN110950724AAchieve preparationEnsure the generationNon-explosive stabilisersNitrated pentaerythritol explosive compositionsBiotechnologyCellulose
The invention relates to a thermostable indoor set-off smokeless sulfur-free cold firework medicament and a preparation method thereof, and belongs to the field of environment-friendly pyrotechnic compositions. The firework medicament is composed of the components: nano titanium-magnesium powder, modified pentaerythritol tetranitrate, zirconium deuteride, dihydroxy glyoxime, nitrobamboo cellulose,dimethyl diphenyl urea, zinc stearate, nitro tert-butyl triol trinitrate, polyethylene wax and diatomite. The nano magnesium-aluminum powder and the modified pentaerythritol tetranitrate powder are used as main components, so that the setting-off temperature is low, and safety and reliability are realized; dihydroxy glyoxime and zirconium deuteride are introduced, so that sufficient combustion and bright color are ensured; the components do not contain chlorine elements and sulfur elements, so that no toxic and harmful smoke is generated; self-made nitrated bamboo cellulose is adopted, and dimethyl diphenyl urea is introduced, so that the compatibility and the mechanical property of the cold firework medicament can be effectively improved, the safety performance of the cold firework medicament is remarkably improved, the safety and the reliability of the cold firework medicament are guaranteed, and an excellent setting-off effect is achieved.
Owner:江西吉润花炮新材料科技有限公司
A kind of insensitive Taian and its preparation method
ActiveCN111960906BLow mechanical sensitivityImprove securityNon-explosive desensitisers/phlegmatisersExplosive working-up apparatusElastomerPolymer science
The invention discloses an insensitive taian and a preparation method thereof, in order to solve the problem of low safety performance in the process of the prior art. The insensitive Taian of the present invention is made by covering Taian with a mixture of a thermoplastic elastomer and a flame retardant as a desensitizing agent, and the thermoplastic elastomer is butanediol-succinic acid-adipic acid copolymer, so The flame retardant mentioned above is dioctyl phthalate, and the particle size of said Taian is 50 μm-80 μm. It consists of the following components in mass percentage: 0.5%-10.1% of butanediol-succinic acid-adipic acid copolymer, 0.3%-0.9% of dioctyl phthalate, and 89.1%-98.5% of Taian. The invention effectively reduces the mechanical sensitivity of Taian itself and its flexible explosive, improves the safety performance of the flexible explosive preparation process, does not affect the performance of the original explosive formula, has simple preparation process and low cost, and is suitable for popularization and application in large quantities.
Owner:XIAN MODERN CHEM RES INST
Method and device for preparing nanoeutectic energetic material
InactiveCN103977593BFine granularityUniform grainNitrated aromatic explosive compositionsSolution crystallizationSolventHigh pressure
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Double-sided pressure-sensitive explosive tape and preparation method thereof
InactiveCN110790621AStrong adhesionImprove fitNon-explosive fillers/gelling/thickening agentsExplosive working-up apparatusAdhesive beltExplosive Agents
The invention discloses a double-sided pressure-sensitive explosive tape and a preparation method thereof. The problems such as poor adhesion and low strength of existing flexible explosives are solved. The double-sided pressure-sensitive explosive tape includes a flexible explosive layer, both sides of the flexible explosive layer are coated with pressure-sensitive adhesive layers, and release material layers are attached to the pressure-sensitive adhesive layers on at least one side. During preparation, both sides of a sheet-shaped flexible explosive are uniformly coated with pressure-sensitive adhesives, and release materials are attached to the outside of the pressure-sensitive adhesives on at least one side. The double-sided pressure-sensitive explosive tape has the advantages such ashigh adhesion, good attachment performance, good explosion effect, convenient use and operation and simple process.
Owner:ZHONGBEI UNIV
Method for flow type ultrasonic processing of intercrystalline acid of single-compound explosive
ActiveCN111116278AReduce energy consumptionImprove efficiencyExplosive working-up apparatusNitrated pentaerythritol explosive compositionsExplosive AgentsMixed materials
The invention provides a method for flow type ultrasonic processing of intercrystalline acid of a single-compound explosive, and the method comprises the following steps: mixing an acid-containing single-compound explosive crude product with water to form a mixed material; controlling the temperature in a washer to be kept at 25-45 DEG C; enabling the mixed material to enter from the lower end ofthe washer and flow out from the upper end, circulating for a certain time and then performing ultrasonic processing; in the ultrasonic process, controlling the temperature in the washer not to exceed50 DEG C, circularly washing for a certain time, and stopping ultrasonic processing when the pH value in the washer is stable; and filtering and leaching the washed single-compound explosive product,and drying to obtain the single-compound explosive product meeting the acidity requirement. According to the method, washing water is recycled, energy consumption is low, efficiency is high, mass production is easy to achieve, the energy utilization rate of the ultrasonic effect can be increased through circular flowing of the washing water, meanwhile, water consumption is further reduced, and large-scale application of the method can be achieved through series connection of multiple ultrasonic washers.
Owner:XIAN MODERN CHEM RES INST
Industrial detonating cord flux core prepared from energetic material by-product
InactiveCN113563141AWith waste utilizationLow costNitrated pentaerythritol explosive compositionsFuse detonationProcess engineeringGraphite
The invention discloses an industrial detonating cord flux core prepared from an energetic material byproduct, and the industrial detonating cord flux core comprises the following components in percentage by mass: 92-98% of a Teramine byproduct and 2-8% of graphite powder. The detonating cord flux core is prepared by taking the by-product of the energetic material, namely the PETN, as the energetic component and taking the graphite powder as the antistatic agent, so that the PETN by-product is recycled, waste is turned into wealth, various properties of the industrial detonating cord prepared from the PETN by-product are equivalent to those of a standard industrial detonating cord prepared from standard RDX or the PETN, and the product cost is greatly reduced.
Owner:NANJING UNIV OF SCI & TECH
A kind of explosive hardening explosive and preparation method thereof
ActiveCN105693439BGood compatibilityReduce volatilityExplosive working-up apparatusNitrated pentaerythritol explosive compositionsCITRATE ESTERMetallurgy
GMG explosion hardening explosive relates to the technical field of explosives, and in particular relates to a special explosive for high-manganese steel pieces explosion hardening treatment. The invention mainly addresses the problem that the effect of a mechanical method for high manganese steel piece hardening is not ideal. The GMG explosion hardening explosive comprises, by weight, 40-80% of a main explosive cyclonite, 10-30% of a high-molecular material and 10-30% of a plasticizer. The high-molecular material is a collodion; the plasticizer is acetyl tributyl citrate; the plasticizer is triacetin; the plasticizer is tributyl acetyl citrate and triglyceride triacetate in the weight ratio of 1:1. A density additive accounts for 0.1% of the total weight of cyclonite and the high-molecular material. The explosive has the advantage of good hardening effect on high-manganese steel pieces after explosion.
Owner:HAIDENG TECH SERVICES DALIAN CO LTD
A flow-type ultrasonic treatment method for intercrystalline acid in simple explosives
ActiveCN111116278BReduce energy consumptionImprove efficiencyExplosive working-up apparatusNitrated pentaerythritol explosive compositionsExplosive AgentsProcess engineering
The present invention proposes a flow-type ultrasonic treatment method for the intercrystalline acid of elemental explosives, which comprises taking the crude acid-containing elemental explosives and mixing them with water to form a mixed material; controlling the temperature in the scrubber to keep at 25-45°C; making the mixed material from washing The lower end of the washer enters, the upper end flows out, and ultrasonic treatment is performed after a certain period of circulation; during the ultrasonic process, the temperature in the washer is controlled not to exceed 50°C, and after a certain period of cycle washing, the ultrasonic treatment is stopped when the pH value in the washer is stable; The explosive product is dried after being filtered and rinsed to obtain a simple explosive product meeting the acidity requirement. In this method, the washing water is recycled, the energy consumption is low, the efficiency is high, and it is easy to realize mass production. The method can improve the energy utilization rate of the ultrasonic action through the circulating flow of the washing water, and also further reduce the consumption of water, and the method can be used Large-scale application is realized by connecting multiple ultrasonic scrubbers in series.
Owner:XIAN MODERN CHEM RES INST
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