Explosives and matches (C06)

C   Chemistry; metallurgy(315635)
C06            Explosives; matches(2093)
Inert filler composition // 2629078
FIELD: chemistry.SUBSTANCE: inert filler composition contains filler components and a binder consisting of an epoxy resin and amine curing agent. As the filler components, a mixture of rubber crumb with a shot made of chipped ferrous metals is used.EFFECT: invention provides an inert filler composition that is versatile with a wide range of density control and appropriate mass and adhesion properties.1 tbl, 2 ex
Spherical porcelain for cartridge of small arms // 2628783
FIELD: weapon and ammunition.SUBSTANCE: invention relates to the production of gunpowder, in particular, dibasic spherical powders, intended for the equipping of 5.6-mm sports and hunting rounds of annular ignition. Spherical powder for the equipment of 5.6-mm rounds of annular ignition includes pyroxylin, nitroglycerin, centralite No.2, ethyl acetate, moisture, graphite.EFFECT: invention provides a powder, which includes a source of carcinogen and an increased specific heat of combustion.2 tbl
Explosive // 2628604
FIELD: chemistry.SUBSTANCE: explosive contains ammonium nitrate and a catalyst for explosive decomposition. As the catalyst for explosive decomposition, potassium ferrocyanide with a dispersion of 0.15÷0.20 mm with the following ratio of ingredients, wt %: ammonium nitrate NH4NO3 - 95÷98, potassium ferrocyanide - 2÷5.EFFECT: improving the quality of the ore breakage, significant simplifying the obtaining technology, while simultaneous providing the explosive with physical stability, reducing its power with increasing detonation capacity.2 tbl
Spherical moderated powder for automatic weapon and rifle cartridges // 2628385
FIELD: weapons and ammunition.SUBSTANCE: invention relates to spherical double-base moderated powder for small arm cartridges, namely automatic weapon and rifle cartridges of caliber from 5.45 to 12.7 mm. The powder consists of spheroidal granules with a phlegmatized surface layer and contains an energy base - nitrocellulose and nitroglycerin, a phlegmatizer-centralite No. 1, dibutyl phthalate and/or dioctyl phthalate, and/or diethyl hexyl phthalate and/or triethylene glycol dimethacrylate and/or oligoester acrylate, a solvent - ethyl acetate, stabilizator of chemical resistance - diphenylamine and water at a certain ratio of components. Wherein the thickness of the phlegmatized surface layer is 15.5-30% of the thickness of the combustible arch. The ratio of the diameter of the powder granule to the thickness of the combustible arch is from 1.0 to 2.05. The density of loading the cartridge with spherical moderated powder is from 0.85 to 1.15 g/cm3.EFFECT: increased speed of the bullet without increasing the maximum pressure of the powder gases.3 cl, 1 dwg, 4 tbl

ethod of forming bursting charge // 2627862
FIELD: weapon and ammunition.SUBSTANCE: method involves sequentially feeding portions of loose explosive composition (EC) into the body of the ammunition (BA) and sealing each of them with a punch. And the value of each portion is determined in proportion to the geometric parameters of the filled part of the housing of the power unit and it is loaded based on the weight sensor of the feeder. Then, compaction of each portion is carried out, ensuring a pressing speed of 2-4 mm/s, a specific pressure of 95-120 MPa and a holding time of 6-10 seconds. After that, the automatic device fixes the height coordinate of the resulting compact and evacuate the punch outside the filling zone of the aircraft with a speed of idle movements not exceeding 200 mm/s.EFFECT: use of the invention makes it possible to form explosive charges of increased density in artillery ammunition with a more even distribution in the transverse and longitudinal directions and to increase the safety of the pressing process by eliminating the focus of temperature heating in the compaction zone.3 cl, 2 dwg
Igniter composition // 2627409
FIELD: chemistry.SUBSTANCE: igniter composition contains polyvinyl butyral as a binder, ammonium perchlorate - as an oxidizer, aluminium or the aluminium-magnesium alloy PAM-3 as metal fuel, as well as plasticiser-dibutyl phthalate, technological additives-technical carbon, paraffin, oleic acid, zinc stearate.EFFECT: improved performance, greater power, combustion temperature and combustion heat.1 tbl, 5 ex
ethod of producing coarse pellet powder // 2627408
FIELD: chemistry.SUBSTANCE: method of producing pellet powder (PP) involves preparing a powder lacquer with stirring pyroxylin, powder mass or mixtures thereof with recyclable waste with ethyl acetate (EA) in an aqueous medium, dispersing the powder lacquer onto spherical particles, dehydrating and removing ethyl acetate. Dispersing of the particles is carried out at a temperature of 65-69°C, after which the temperature of the medium is reduced to 45-50°C and a dehydrator is introduced. After stirring, a vacuum is added, and the ethyl acetate is removed at this temperature at a pressure of 0.031-0.040 MPa.EFFECT: method is effective in preparing coarse pellets based on water-dispersion technology based on pyroxylin, allows to reduce the temperature of distillation of ethyl acetate and to increase the yield of the product by eliminating the secondary dispersion of lacquer particles.1 tbl, 5 ex
Spherical powder // 2627407
FIELD: weapons and ammunition.SUBSTANCE: spherical powder includes pyroxylin 1Pl with a nitrogen oxide content of at least 212.0 ml/g, nitroglycerin, centralite I, ethyl acetate, moisture and graphite at a certain ratio of components.EFFECT: improvement of the formulation, which improves the progressive nature of spherical powder combustion and facilitates its production.2 tbl, 3 ex
Spherical powder // 2627406
FIELD: weapons and ammunition.SUBSTANCE: invention relates to the production of moderated spherical powders for small arms, namely, to equip a 7.62-mm auromatic weapon and a hunting cartridge for rifled weapons. The spherical powder includes pyroxylin 1Pl with a nitrogen oxide content of at least 210.5 ml/g, nitroglycerin, centralite I, ethyl acetate, moisture, graphite at a certain ratio of components.EFFECT: improvement of the formulation, which facilitates production and improves the progressive nature of spherical powder combustion.2 tbl, 3 ex
Charge of explosive substance for projectiles, method of preparation of this charge and projectile with explosive substance (options) // 2627393
FIELD: blasting.SUBSTANCE: charge of the explosive substance for the projectile is used for forced triggering of avalanches. The projectile includes a blended composition of two components in which an aqueous solution of hydrogen peroxide is used as the first component to perform the oxidising agent function, and ethanol or methanol or propane-1,2,3 triol, or dimethyl ketone in the ratio of the formation of a stoichiometric mixture is used as the second component performing the function of liquid fuel. The projectile is made in the form of a polymer canister or a polymer container with a handle or in the form of a cylindrical polymer container.EFFECT: increased safety of storage, transportation and use of explosive compositions used to blast avalanche-prone areas.6 cl, 2 dwg, 3 tbl

Delivery systems of explosive materials and methods related to it // 2627059
FIELD: blasting operations.SUBSTANCE: invention discloses the explosive materials delivery systems with variable density values and methods of changing the explosive materials energy in the blast hole. The blasting energy changing method of the explosive materials in the blast hole includes the following steps: introduce the charging tube into the blast hole; pass the homogenized product, containing the emulsion matrix through the feeding tube; introduce the gas additive proximally to the loading tube outlet with the first constant flow rate; mix the homogenized product with the gas additive proximally to the loading tube outlet with the first flow rate to form the first activated product, having the first density; pump the first activated product into the blast hole; introduce the gas additive proximally to the loading tube outlet with the second constant flow rate; mix the homogenized product with the gas additive proximally to the loading tube outlet with the second flow rate to form the second activated product, having the second density; and pump the second activated product into the blast hole.EFFECT: invention allows to increase the blasting operations efficiency and to reduce the environmental hazard.56 cl, 7 dwg
ethod for manufacturing solid-fuel rocket engine charging from mixed rocket fuel // 2626353
FIELD: engines and pumps.SUBSTANCE: method of manufacturing a charge from a mixed rocket fuel is carried out by vacuum thermal pressing of the powdered composition directly into the body of a solid-fuel jet engine. For this purpose, a powdered fuel mixture is placed in the engine casing, from the open side of the casing, a process cylinder temporarily placed, containing a carefully fitted piston with a gas outlet through which the air is removed from the fuel mixture. After pumping out the air, the body is heated, starting from the bottom and from the side surface. As the fuel mixture melts, the piston moves to the bottom, compressing the mixture until it completely turns into a melt. After the entire mixture is melted, the charge is cooled and the piston is removed.EFFECT: method enables to simplify the technology of fuel preparation as much as possible, to significantly shorten the period of equipping the engine and to fill the solid fuel rocket with fuel at the launch site, which eliminates the need to transport a charged engine.4 dwg
ethod of obtaining emulsifying composition for impregnation of ammonium nitrate // 2625876
FIELD: chemistry.SUBSTANCE: method for producing the emulsion composition comprises the introduction of an anionic surfactant, which uses a 70% solution of calcium alkylbenzenesulfonate in isobutyl alcohol in an amount of 6-6.5 wt %, to a diesel fuel taken in an amount of 80 wt.%. When mixing, introduction to the system of received nonionic surfactant, which applies to ethoxylated castor oil in the quantity 3.5-4 wt %, followed by water drop by drop in the amount of 10 wt % at constant hashing.EFFECT: increasing physical stability of ammonium nitric explosives after their manufacturing, impregnation, storing both in normal conditions and in conditions of low-negative and high-positive temperatures.3 cl, 2 tbl, 4 ex
ethod of marking blasting powder by carbon nanotubes // 2625462
FIELD: weapon and ammunition.SUBSTANCE: method of marking the blasting powder includes the introduction of the carbon nanotubes into the blasting powder as the marker substance in the amount of 1-18% from the total mass of the powder charge. In this case, the marking additive is introduced directly by mixing both in the finished powder and during its manufacture.EFFECT: introduction of the carbon nanotubes into the blasting powder increases the reliability of its use detection, the accuracy of the marker determination, reduction of the blasting powder production labour intensity.1 dwg, 1 tbl, 2 ex
Emulsion explosive "argunit rh" // 2622305
FIELD: blasting.SUBSTANCE: emulsion explosive (EE) contains the emulsion matrix, including aqueous solutions of ammonium and calcium nitrates, calcium oxide and emulsifier, and the gas generating additive, prepared by dissolving hydrogen peroxide in water with the addition of a linear alkylbenzenesulfonic acid. "Argunit RH" emulsifier is used as the emulsifier, which is the 35% solution of nonionogenic surfactant "Amolin-F" in the diesel fuel and/or industrial oil. EE has the critical detonation diameter of the open charge less than 40 mm at high detonation velocity.EFFECT: improved stability.1 tbl, 5 ex

ethod of producing ball powder // 2622135
FIELD: weapons and ammunition.SUBSTANCE: to produce the powder a polymeric binder-pyroxylin with a viscosity of 1.0-8.0°E and polyvinylnitrate (PVN) with a molecular weight of 400,000-200,000 c.u. are mixed in water, keeping the ratio between pyroxylin and PVN equal to (85-90):(15-10). The mixture is stirred at increasing temperature, then powder lacquer is prepared in ethyl acetate. The powder lacquer is dispersed with the adding an emulsifier and sodium sulfate is fed to dehydrate the particles. After that, the ethyl acetate is removed, the powder elements are washed, sorted and dried.EFFECT: method makes it possible to obtain coarse-particle granules by water dispersion technology on the basis of a bipolymer binder nitrocellulose-low molecular PVN, thereby increasing the viscosity range of the applied pyroxylin, to increase the concentration of the polymer binder in the lacquer phase and the yield of the desired product.1 dwg, 1 tbl, 5 ex

ethod of drying spherical powder // 2622134
FIELD: weapons and ammunition.SUBSTANCE: method of drying spherical powder (SP) involves feeding the powder with graphite via a cyclone-precipitator into the drying chamber, powder drying by supplying the coolant to the lower part of the chamber at a temperature of 88-98°C for 60-80 minutes, then for 140-180 minutes at a temperature of 65-75°C, powder cooling and unloading into the receiving hopper. The powder drying is carried out in a rotary two-chamber apparatus in the first chamber along with the powder loading in an amount of 20-40 kg (dry weight), where the powder is dried in the first zone at a temperature of 98-65°C and with an air head of 1.5-4.9 kPa together with moisture removal. Then, by rotating the mechanism, the first chamber with the powder moves to the second zone, where, by supplying air at a temperature of 20-30°C, the powder is cooled down to a temperature of 40-60°C for 15-25 minutes, while the powder is loaded to and then dried in the second chamber.EFFECT: increased capacity of the powder drying device by using a two-chamber drying apparatus with a separation into zones of moisture removal and powder cooling.1 dwg, 1 tbl
ethod of producing ball powder // 2622129
FIELD: weapons and ammunition.SUBSTANCE: polyvinyl nitrate (PVN) is first added to the water to obtain a ball powder and ethyl acetate is dosed during stirring. The mass is mixed at increasing temperature, then nitrates of cellulose (NC) of fibrous form are injected, with the ratio of PVN and NC (10-15):(90-85), and the powder laquer is prepared. Then the powder lacquer is dispersed, an emulsifier and sodium sulfate are introduced to dewater the lacquer particles. After that, the ethyl acetate is removed, the powder elements are washed, sorted and dried.EFFECT: method makes it possible to obtain ball powder granules by water dispersion technology on the basis of the bipolymer binder PVN-NC and thereby increase the processability of production of ball powders, provide the required quality of granules for ethyl acetate content and shorten the lacquer formation time.1 tbl, 5 ex
Pyrotechnical composition for solid bodies thermal destruction charges // 2622127
FIELD: blasting.SUBSTANCE: pyrotechnic composition for solid bodies thermal destruction charges contains, wt %: aluminium powder 22-32, ferric oxide 54-60, synthetic rubber 5-6 as a binder, fluoroplast-4 2-3 and fluororubber SKF-32 2- 3. Powders of the thermal basis of aluminium and iron oxide composition are limited to a size in the range of 20-50 mcm. Introduction of halogen-containing components (fluoroplastic and fluorine rubber) into the pyrotechnic composition ensured the activation of compacted charges combustion, with improved flammability and stable combustion for a safe speed of solids thermal destruction.EFFECT: solution enables composition manufacturability of long charges and increased functionality when used as intended.1 tbl, 5 ex

ethod for producing mixed firm rocket fuel // 2621800
FIELD: chemistry.SUBSTANCE: manufacturing charges blends with solid fuel missile is carried by the free injection of the fuel mixture from the mixer through the drain system assembled with snap-channeling housing. In the process of forming an additional fuel mixture is filled container docked to the drain system located in the conical part of the adapter by snap-channeling valve, and configured as a cylinder with a piston. After the draining of the fuel mixture from the mixer fuel mixture is forced into the body through the piston of the additional capacity.EFFECT: reduced loss of the fuel mixture at the expense of guaranteed fuel mixture filling the housing volume located above the drainage holes in the channel forming a snap.1 dwg
ethod for producing mixed firm rocket fuel // 2621789
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing mixed firm rocket fuel (MFRF). MFRF is prepared by mixing the binder with metal fuel, powdered ingredients, additives and technological hardener followed by draining the fuel mass in the body. Hardener is mixed with part of the inert towards it plasticiser fuel mass introduced into the latter, and before it is introduced, the fuel temperature was gradually lowered to 5-20°C.EFFECT: uniform distribution of components throughout the volume of the fuel mass, eliminates premature curing of the fuel mass, improves the process of mixing of components that provides improved mechanical characteristics of the fuel.2 tbl, 2 ex

Binary pyrotechnic mixture emitting in the near infrared // 2619681
FIELD: chemistry.SUBSTANCE: binary pyrotechnic mixture, emitting radiation in the near infrared region consists of an oxidant - zinc peroxide and a fuel - cupric salt with sulfur mercapto compounds, bound in -SH group, or cuprous salt with thiocyanate. To obtain the composition the fuel is dissolved in a suitable solvent and then deposited using a copper salt, preferably cupric chloride dihydrate, to obtain salts. Using tracer compositions based on this invention does not require any additional auxiliary pyrotechnic systems.EFFECT: pyrotechnic mixture meets the basic requirements for special infrared tracer compositions and tracer compositions in general.9 cl, 2 dwg, 12 ex
Extinguishing pyrotechnic composition // 2618271
FIELD: chemistry.SUBSTANCE: extinguishing agents containing pyrotechnical composition (wt %): 42-51, potassium nitrate, potassium iodate, 26-28, 16-18 gassing component sorbitol, organic binder based fuel iditol 6-10 and thiourea. Thus iditol introduced in an amount of 5-7% by weight of the dry powder and in an amount of 1.3 wt % - in the form of a 50% spirit solution by mixing communication components.EFFECT: composition allows to make charges for the press technology and is characterized by high chemical activity and effective action in the suppression of fires due to the increased rate of combustion and dynamic environmentally friendly aerosol formation in the protected volume much lower concentration of extinguishing flame retardants.1 tbl, 5 ex
Aerosole-forming pyrotechnical composition for fire extinguishing // 2618261
FIELD: chemistry.SUBSTANCE: pyrotechnical aerosol-forming composition comprising (wt %) oxygen containing oxidizer - 55-60 potassium nitrate, iodine-containing flame retardant - ammonium iodide or potassium iodide 5-7, a blowing agent - iditol and sorbitol 34-36 1-2, wherein iditol introduced into mixture in the form of a 25% solution in ethanol. Composition forms an environmentally friendly aerosol inhibiting combustion in smaller concentration quenching, which ensures high efficiency of fire suppression to a limited extent.EFFECT: charge combustion temperature reduction provides cooling extinguishing aerosol generator inside.2 cl, 1 tbl, 5 ex
Illuminating pyrotechnic composition // 2618075
FIELD: chemistry.SUBSTANCE: pyrotechnic composition comprises (wt %) oxidizing agent - 42-47 barium nitrate, magnesium metal powder as fuel 40-43, spectral equalizer - 4-3 cryolite, magnesium carbonate as the dispersant in the combustion wave slags 2-6 organic combustible binder - 25% rosin solution in drying oil 5-3 and added thiourea 2-3.EFFECT: composition provides high functionality of the lighting structure in the main action, with a concomitant improvement in the characteristics of the destination, such as flammability and intensified formation during combustion aerodisperse education, radiating in the optical spectrum, preferably at a wavelength in the visible range.1 tbl, 5 ex
ethod for producing charge of mixed rocket solid fuel // 2616922
FIELD: weapons and ammunition.SUBSTANCE: producing charge of mixed rocket solid fuel comprises making and draining fuel supply to the charge housing formed with a channel-forming tooling. At the final draining stage when the free fuel supply draining to the housing terminates according to the instrument data the mixer is filled with inert gas under pressure providing free fuel supply draining to the housing, the pressure is periodically increased as long as the free fuel supply draining terminates until the housing is filled up to the top which is recorded with pressure sensors located on the channel forming tooling. Then the charge is held in the mixer at atmospheric pressure.EFFECT: method enables the housing located above the draining hole to be filled with the fuel supply, and reduces consumption of the expensive mixed rocket solid fuel for making the charge.2 ex
Production method of the mixed gelatine explosive // 2616729
FIELD: blasting.SUBSTANCE: described the method of mixed gelatine explosive producing, based on the hexogene and a polymeric binder, including the mixing of the mixed gelatine explosive components and the formation of the explosive charge, in which prelimenary the powdered hexogene is subjected to gasification (sublimation) under the vacuum at the residual pressure of (2-5)×10-3 Pa and at the temperature of 140-160°C, then the resulting layer of sublimated hexogene is mechanically separated from the substrate and mechanically ground upto the particles of 250-500 microns dispersion, and then the resulting product is added into a binder solution in the solvent, selected from the group of inert to hexogene - or in chloroform, or in petroleum ether, polyisobutylene is used as a binder, then the solvent is removed by evaporation until the constant weight of the product is obtained, after that the final explosive charge is formed.EFFECT: plasticised hexogene with the reduced critical diameter is produced.3 ex
ethod for producing shock-flammable non-corrosive composition for blasting caps meant for small arms // 2616665
FIELD: weapons and ammunition.SUBSTANCE: production technology of non-corrosive composition is carried out in a wet state and is safe compared to the existing domestic technologies. When producing shock-flammable composition a protein emulsifier of HLB equal to 8-13 in the amount of 0.2-10 wt % (over 100%) is pumped as an adhesive base into a wet mechanical mixture comprising, in wt %: initiating explosives - 25-72 lead styphnate and 3-10 tetrazene, oxidizer - 10-30 barium nitrate and a sensitizer - 15-35 antimony sulfide. The resulting mixture was placed into a casing (cap), a paper disc/circle of paper is installed on the wet composition, then the mixture is pressed, dried and varnished.EFFECT: composition good pressing, good engagement with its cap, theproducts stability during storage, lack of corrosion on the inner surface of the barrel when firing.1 tbl, 5 ex
Non-detonable solid fuel composition // 2616654
FIELD: oil and gas industry.SUBSTANCE: non-detonable solid fuel composition comprises components in the following ratios, mass.%: ammonium nitrate 75-85, powdery NBR 10-24, and sodium salicylate 1-5 as the combustion catalyst, providing non-detonablility and combustion products in the absence of chromium oxide.EFFECT: elimination of detonation capacity of the solid composition at elevated pressures while maintaining the ability to layer-burning capacity and reduced erosion of combustion products by removing the chromium oxides content in combustion products.1 tbl
Pyrotechnic signal composition // 2614721
FIELD: chemistry.SUBSTANCE: invention relates to pyrotechnics, namely to pyrotechnic signal compositions of red and green lights for use in jet signal cartridges, and can be used in various signaling products. The signal pyrotechnic composition is described, containing strontium or barium nitrate, magnesium, polyvinyl chloride and phenol-formaldehyde resin, characterized in that it additionally comprises barium peroxide in the following ratio (in % by weight): strontium or barium nitrate 39-66, magnesium 8-25, polyvinyl chloride 14-21, phenol formaldehyde resin 5-7, barium peroxide 4-11.EFFECT: pyrotechnic signal composition with high lighting performance is obtained.2 cl, 2 tbl

Ammunition warhead // 2612187
FIELD: weapons and ammunition.SUBSTANCE: ammunition warhead includes a housing, rigidly connected to the cover, forming together an enclosed volume with an explosive content, EB, tungsten reflector, high hardness material, detonation capable shell consisting of metal borohydride NaBH4 or LiBH4 that can keep molecular hydrogen in quantities NaBH4 - 8%, LiBH4 - 18.5 and the ability of molecular hydrogen at high temperatures to move into atomic hydrogen followed with explosion over high power, explosive charge channel of high power , explosive benzotrifuroksan BTF C6N6O6 or acetylenedinitril C4N2 that explode with a temperatures yield over 5000 degrees. The device may include an additional EB, thus it is advisable to place it as far as possible from the first EB, for example at the bottom of the device. In this case it is recommended to use EB which are used in nuclear warheads, two nuclear EB DER-5M with less than a microsecond timing spread and a device of its undermining, ensuring the simultaneous feeding of energy explosion on each EB for their reliable and synchronous operation.EFFECT: obtaining high-powered explosive device with a metal alloy core with a high hydrogen absorption capacity for a sharp increase in energy of the explosion.2 cl, 1 dwg
Illuminating pyrotechnic composition // 2611872
FIELD: chemistry.SUBSTANCE: illuminating pyrotechnic composition comprises, by wt %: barium nitrate 40-50, magnesium powder 40-43, PTFE as a flame colouring oxidizing agent 3-5, resin in drying oil as the organic combustible binder 2-4, and additional gas-forming substances: magnesium carbonate 3-5 and thiourea 2-3.EFFECT: burning of the pyrotechnic composition proceeds with the increased speed and provides high radiation brightness in the visible spectrum of the generated cloud glowing with white colour for a long time, while reducing production costs.tbl, 5 ex
Heat-resistant gas-generating composition // 2611506
FIELD: chemistry.SUBSTANCE: invention refers to heat-resistant gas-generating compositions, used and operated in a temperature range of minus (70 ± 3)°C to plus (155 ± 5)°C. The gas-generating composition comprises an oxidant - 1,3,5-trinitro-1,3,5-triasatcyclohexane or mixture of 1,3,5-trinitro-1,3,5-triasatcyclohexane and 1,3,5,7-tetranitro-1, 3,5,7-triasatcyclohexane at a ratio of 3:1, respectively, a binder - polyvinylbutyral, plasticizer - dibutyl phthalate, processing aids - paraffin, oleic acid, technical carbon and zinc stearate.EFFECT: invention provides reduction of condensed combustion products and higher operating temperatures.1 tbl
Grammonite // 2610613
FIELD: chemistry.SUBSTANCE: invention refers to industrial non-safety explosives, namely grammonite used for blasting operations at sections, pits, in underground production bottomholes of class II during drill holes, wells, and chambers loading in all climatic zones with temperature from minus 50 to plus 50°C on rocks of any strength and ores of any composition. Grammonit contains TNT in the form of flakes, or granulated, or a mixture thereof, granulated ammonium nitrate and mononitrotoluene at the components ratio, wt %: 17.0-23.0 for TNT, 0.01-3.0 for mononitrotoluene, the rest up to - granulated ammonium nitrate. M-grade granulotol is included into the composition as granulated trotyl. Mononitrotoluene includes para-mononitrotoluene (p-MNT), or ortho-mononitrotoluene (o-MNT), or meta-mononitrotoluene (m-MNT) or mixtures thereof. During explosive transformation of grammonite, total produced gas harm is less than 63 l/kg.EFFECT: invention is aimed at creation of a safely-manufactured explosive and handling thereof.3 cl, 1 tbl
Energy-rich composition containing boron and fluorine and method of its production // 2610605
FIELD: power engineering.SUBSTANCE: invention relates to compositions containing boron and fluorine, which can be used as high-energy components of energy condensed systems (ECS), for example, gunpowders, pyrotechnic and explosive compounds, composite solid propellants. Energy rich compositions containing boron and fluorine contains as fuel -intercalate compound of graphite oxide with dodecahydro-closo-dodecaborate compound with molar ratio 1 to (0.1–0.3) and as oxidising agent – ultrafine polytetrafluoroethylene (PTFE) in amount ensuring completeness and rate of boron transition form borohydride compound into boron oxyfluoride (BOF)3, herewith dodecahydro-closo-dodecaborate compound is ammonia salt of ammonium dodecahydro-closo-dodecahydrate (NH4)2B12H12. Composition is obtained by mixing fuel in the form of graphite oxide aqueous gel and aqueous solution of ammonium dodecahydro-closo-dodecanitrate with molar ratio of 1 to (0.1–0.3) with PTFE as oxidising agent in the form of ethanol dispersion in the specified quantity till homogeneous gel. Then the produced mixture is dried to constant mass.EFFECT: invention provides simpler method and allows to obtain thermally more stable energy-rich composition.2 cl, 4 ex
Explosive substance (versions) // 2610594
FIELD: blasting operations.SUBSTANCE: invention relates to industrial explosive substances (ES) used in national economy. Explosive substance contains mononitrotoluene or a mixture of mononitrotoluene and dinitrotoluene and trinitrotoluene in the flaked or granulated form. Content of mononitrotoluene or its mixture with dinitrotoluene in the substance makes 0.1–4.0 wt%. As mononitrotoluene it contains para-mononitrotoluene (p-MNT), or ortho-mononitrotoluene (o-MNT), or meta-mononitrotoluene (m-MNT), or their mixture.EFFECT: due to containing mononitrotoluene or a mixture of mononitrotoluene and dinitrotoluene reduced is fragility of trinitrotoluene and its dusting, namely in precipitation of the ES from bags the trinitrotoluene dust concentration in the workplace air is less than 0,49 mg/m3.6 cl, 1 tbl

ethod of marking explosive substance // 2609921
FIELD: chemistry.SUBSTANCE: invention relates to chemical methods of expertise of explosive substances and forensic identifying preparations. A method of marking an explosive substance consists in the introduction of a marking composition, containing identifiers, the quantity of which equals the quantity of technical parameters to be marked, into the explosive substance, obtained by mixing of separate components. To mark the explosive substance each separate component, included into the mixture of the explosive substance, is marked. The marking composition for each separate component is composed of at least one polymer material from the group of polyorganosiloxanes with the length of a molecular chain, representing an identifier, different from lengths of molecular chains and values of viscosity of polymer materials in the marking compositions of other separate components, constituting the mixture of the explosive substance. As the marking composition of the explosive substance a set of marking compositions of separate components of the said substance mixture is used.EFFECT: improvement of marking.3 cl, 3 dwg, 1 tbl

Explosive marking method // 2609224
FIELD: blasting operations.SUBSTANCE: invention relates to chemical methods of inspecting explosive substances and forensic identification preparations. Explosive marking method is introducing marking composition which contain identifiers in explosive material, the number of identifiers is equal to number of technical parameters subjected to marking. Mixture of polyorganosyloxanes with different molecular chain lengths is used as the identifiers, in each molecular chain each technical indicator matches an identifier in the form of a polyorganosiloxane with a corresponding molecular chain length and corresponding "exit time" (“retention”) on a chromatogram.EFFECT: so in the composition of explosive element there is formed "chemical bar code", reading of which is carried out on chromatogram on the principle of presence or absence of component at the specified value of time of its "exit" (“retention”).1 cl, 4 dwg, 1 tbl
ethod for concealed marking of explosive substances (versions) // 2607665
FIELD: chemistry.SUBSTANCE: invention relates to a chemical method of marking and identifying explosive substances (ES), as well as forensic identification of preparations, which can be used in investigation, expert forensic and legal practice. Method for concealed marking of explosives comprises introducing into an explosive, obtained by mixing certain components, a marking composition containing identifiers, number which is proportional to number of technical parameters, to be marked. Each identifier corresponding to a separate property used is a combination of substances (at least two substances), with available detection of fluorescence. Substances can be moulded into separate sets (units), and information (an a unit) is recorded in a binary code with arrangement of substances when detecting on a spectrogram successively built into circuit in accordance with a scale of capacity of units of a binary code. Marking composition is composed of separate sets (units), each of which by a separate stream is fed into an explosive while mixing latter from separate components.EFFECT: method enables to encode data on an explosive substance, provides high security of marking explosive and reliability of identification of explosive based on its marking when reading a graphical recording of latter.6 cl, 3 dwg, 4 tbl, 1 ex
Aerosol-forming pyrotechnic composition // 2607408
FIELD: pyrotechnics.SUBSTANCE: invention relates to pyrotechnic aerosol-forming compositions, used for smoke screen formation. Aerosol-forming pyrotechnic composition contains, wt%: granulated red phosphorus 55–60, a thermal base of a mixture of aluminium-magnesium alloy powder 12–14 with sodium nitrate 13–15, thiocol 11–9, epoxy resin 2–3, manganese (IV) oxide 0.4–0.6, hexamethylenetetramine 0.1–0.3, diphenyl guanidine 0.2–0.6 and as a processing additive pyrotechnic graphite 1.3–2.5. Increase of content of plasticized epoxy resin of thiocol enables to process disclosed composition based on moulding, which is more productive and safe.EFFECT: proposed combination of components ensures higher screening capacity of generated smoke screen due to increased output in aerosol of dispersion phase.1 cl, 1 tbl, 5 ex
Charge for light-gas gun - 12 (versions) // 2607385
FIELD: blasting operations.SUBSTANCE: invention relates to throwing explosives, particularly mixed powders. Disclosed are versions of a charge for light-gas gun, containing boron hydride of beryllium, lithium, aluminium, lithium-aluminium or silicon, or tetraborane, or decaborane in combinations with six different oxidants: ammonium nitrate, ammonium dinitramide, boron nitrate, beryllium nitrate, nitrogen pentoxide nitrogen hexoxide. To increase amount of released hydrogen, hydrazine is added to charge. To increase reaction energy, hydrides or borohydrides of metals, as well as boron, can be added.EFFECT: invention provides higher initial velocity of projectiles and bullets by releasing mainly hydrogen, increased gas release of reaction and control of rate of reaction.34 cl
ethod of making composite solid rocket propellant charge // 2607223
FIELD: weapons and ammunition.SUBSTANCE: invention relates to making charges of a composite rocket propellant, namely, to molding charges by free casting. Charge molding is carried out by free casting of the fuel mass into a housing installed in a pressure chamber. Herewith the pressure chamber or the channel-forming tooling, or both the pressure chamber and the channel-forming tooling simultaneously are subjected to heating.EFFECT: method provides efficient heating of the system of molding tooling – housing and obtaining a stable volumetric average fuel composition temperature at the end of molding the charges and can be used in making large-size solid fuel charges.1 cl, 3 ex
Powerful corrosion-proof impact-igniting composition for primer to cartridges of small arms // 2607211
FIELD: weapons and ammunition.SUBSTANCE: invention relates to impact-igniting compositions for primer to cartridges of small arms. Composition contains lead trinitroresorcinate, barium nitrate, tetrazene and antimony sulphide (nano-antimonyl) with particle size of 70–100 nm, as main component of fuel and sensitizer. Nano-antimonyl provides filling of interporous space thereby releasing ¼ part of weight to increase batch by 20–30 %, increase reliability of capsule and reduce consumption of antimonyl, when making impact-igniting composition in two steps.EFFECT: during combustion of composition large amount of ammonia is produced, which neutralizes acidic combustion products of impact composition causing corrosion of barrel channel of small arms.1 cl, 1 tbl, 5 ex
ethod of producing plastic explosive compound // 2607206
FIELD: blasting operations.SUBSTANCE: invention relates to producing explosives, particularly plastic explosive compounds used in explosive charges. Method of producing a plastic explosive compound involves mixing a crystalline explosive substance (ES) with a solution of a plastic polymer in a volatile solvent, further distilling the solvent, granulation and drying. Before mixing the components the crystalline ES from the class of nitroesters or nitroamines is processed by grinding to increase defectiveness of the ES crystals and to obtain a rounded particles shape close to a sphere or an ellipsoid with the average size of 5–10 mcm. Grinding is performed by mechanical processing in a ball or a planetary mill or in an ultrasonic disperser in the form of a suspension. Dispersion liquid used as the suspension for the mills is ethyl alcohol or another liquid comparable with alcohol by viscosity, wettability, volatility and solubility in it of this ES; for the ultrasonic dispersion distilled water is used. Use of rounded particles provides improved rheological properties of the compound; defectiveness of the ES crystals leads to reducing the critical diameter.EFFECT: producing the plastic ES is optimized due to exclusion of the operation of the ES recrystallization from acetone as more complex and dangerous as compared to mechanical treatment of a suspension.1 cl, 4 ex

ethod of solid-propellant charges armoring // 2606612
FIELD: weapons and ammunition.SUBSTANCE: invention relates to production of armored solid propellant charges, which coating prevents reserved surfaces burning. Heat-resistant fuel charge armoring is performed in two stages. At first stage on fuel cartridge surface glue EL-20 is applied by brush based on epoxy resin of ED-20 grade and low-molecular polyamide L-20 as adhesive interlayer, on which from above glass fabric or coarse calico impregnated with glue EL-20 is applied in two layers. Drying with simultaneous polymerization at temperature of 20–25 °C for 24–25 h or at 50–70 °C for 3–5 hours. At second stage cartridge is placed in mold in form of metal shell and in gap between shell and cartridge glue EL-20 is poured, which polymerization is carried out similar to first stage.EFFECT: method provides simple and safe method of armor application onto small-sized solid fuel charges.1 cl, 3 dwg, 1 tbl, 5 ex
ethod of producing gun powder with minimum web thickness for small arms cartridges and special-purpose ones // 2606418
FIELD: weapons and ammunition.SUBSTANCE: invention relates to production of gun powders, which can be used for charging cartridges for small arms, as well as special-purpose cartridges, for example, construction and industrial cartridges. Method of producing a gun powder with the minimum web thickness comprises production of powder elements with the size of not more than 0.7 mm their preliminary drying to the humidity of not more than 15 %, coating the powder elements with a current-conducting material, rolling the powder elements into plates with the thickness of not more than 0.18 mm on hot rolls, the temperature of which is not more than 100 °C, final drying and averaging of physical and chemical characteristics by blending. At the stage of coating the powder elements may be treated with flame arresters, for example, sulphates of alkali or alkali-earth metals. To obtain elite types of powders after rolling fractionation of the powder elements is performed. To improve quality of powders with the minimum web thickness after the fractionation stage repeated is rolling the coarse fraction of powder particles on the rolls. Obtained gun powders have improved ballistic and operating characteristics of a gun powder with the minimum web thickness due to thermal plasticization of cellulose nitrates forming a mechanical frame of the powder elements at rolling with preliminary coating the powder elements.EFFECT: method ensures uniformity of gun powders with the minimum web thickness regardless of the used raw materials or recycled powders, versatility and process safety of the powders production for any small arms cartridges, including their elite types.6 cl, 1 tbl, 6 ex

Aerosol-forming pyrotechnic composition // 2605576
FIELD: fire safety.SUBSTANCE: invention relates to volumetric fire fighting means and may be used to suppress fire hazards in closed spaces. Aerosol-forming pyrotechnic composition contains, wt%: potassium nitrate 66-68, iditol 18-15, ammonium iodide 9-11, thiocarbamide 3-5 and urotropine 2-3.EFFECT: increased fire extinguishing efficiency by more dynamic achievement of combustion inhibitors required concentration for fire hazards suppression in protected volume.1 cl, 1 tbl, 5 ex

ethod of pellet powders producing // 2605252
FIELD: weapons and ammunition.SUBSTANCE: invention relates to method of solvent stripping from powder elements in production of pellet powder for small arms. After introduction of sodium sulphate into dispersion medium performing solvent stripping by heat carrier temperature raising from 68 °C to 86-87 °C. During temperature raising introducing antifoaming agent of PG-2 or PG-3 grade into reactor. At temperature of 86-87 °C 70-75 wt% of ethyl acetate from its total amount is stripped, and then, raising heat carrier temperature up to 98-100 °C and stripping remaining ethyl acetate. Solvent stripping is performed at strictly definite temperature in bubble boiling mode. Introduction of antifoaming agent enables to completely eliminate formation of foam on liquid-gas phases phase interface.EFFECT: spherical powder obtained in this solvent stripping mode, has preset bulk density and evenly distributed porosity in powder elements.1 cl, 1 tbl, 5 ex

ixture of hydrocarbons for production of emulsion explosive compositions and emulsion explosive composition based thereon (versions) // 2605111
FIELD: chemistry.SUBSTANCE: group of inventions relates to a mixture of hydrocarbons for emulsion explosive compositions (EEC) and to emulsion explosive compositions obtained based thereon. Combustible mixture of hydrocarbons includes, wt%: surfactant - polyisobutylene succinic anhydride with alkanolamine or mixture thereof 22-33, polymer stabiliser - polyisobutylene isomers 10-30, additional stabiliser mixture - fusible hydrocarbon in form of petrolatum with drop point of 48 °C or 72 °C 16-20 and liquid fuel - industrial oil - balance up to 100. Four versions of emulsion compositions are prepared based on said mixture of hydrocarbons with four types of sensitising agents: aqueous solution of sodium nitrite, glass microspheres, polymer microspheres and polymer microspheres in form of foamed polystyrene.EFFECT: obtained compositions retain stable physical and chemical and explosive characteristics at storage life of not less than 6 months and processing temperature not higher than 85 °C.8 cl, 3 tbl, 15 ex

ethod of manufacturing detonating cord and method of production of explosive substance for its manufacture // 2604748
FIELD: blasting operations.SUBSTANCE: invention relates to production of cord explosives, namely, to the manufacturing method of detonating cords. For production of detonating cord aqueous paste based on hexogene or octogene is obtained previously, by mixing the latter with water in the disclosed amounts to obtain a suspension of explosive substances particles in water and sequential addition into the produced mixture of disperser, thickener, an antifoam agent and an emulsifier in said amounts while stirring constantly. Obtained paste with moisture content from 10.0 to 15.6 wt% is extruded at a pressure of 0.15-0.20 Mpa to produce continuous core of the detonating cord with subsequent braiding the latter with polyester threads. Braided core is dried in a drying chamber at a temperature of the heat carrier of 82.1-84 °C and the protective layer on the basis of nylon is applied.EFFECT: invention provides increase in safety of detonating cord production while ensuring high quality and reliability of the finished product.3 cl, 4 tbl, 2 ex
 
2551168.
Up!