Spherical gunpowder for charges for hunting cartridge 7,62×51 (308win) |
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IPC classes for russian patent Spherical gunpowder for charges for hunting cartridge 7,62×51 (308win) (RU 2497796):
Pellet powder for 7,62 mm automatic cartridge / 2496759
Invention relates to production of pellet powder for small arms, particularly for a 7.62 mm automatic cartridge. The powder contains nitrocellulose, nitroglycerine, hexogene, diphenylamine, centralite I, centralite II, dinitrotoluene, graphite, ethyl acetate and moisture. The starting material is nitrocellulose with volume concentration of nitrogen oxide of 213.0-214.5 ml NO/g and recyclable non-phlegmatised wastes from previous operations. The powder has packed density of 0.950-0.995 kg/dm3.
Pellet powder for 7,62 mm automatic cartridge / 2496758
Invention relates to production of pellet powder for small arms, particularly for a 7.62 mm automatic cartridge. The powder contains nitrocellulose, nitroglycerine, diphenylamine, centralite I, centralite II, dinitrotoluene, graphite, ethyl acetate and moisture. The starting material is nitrocellulose with nitrogen oxide content of 212.5-214.2 ml NO/g and recyclable non-phlegmatised wastes from previous operations. The powder has packed density of 0.945-0.995 kg/dm3.
Charge for 7,62 mm automatic rifle cartridge / 2495861
Invention relates to production of pellet powder for small arms. The charge is intended to be placed in an encapsulated shell with a bullet, and is made from pellet powder elements consisting of nitrocellulose with nitrogen oxide content 213.0-214.5 ml NO/g and 20-30 wt % recyclable non-phlegmatised wastes from preceding operations, 11.5-14.5 wt % nitroglycerine, 10-30 wt % hexogene, 0.5-1.0 wt % diphenylamine, 0.2-0.4 wt % centralite II, with packed density of the powder elements of 0.950-0.995 kg/dm3, surface-phlegmatised with respect to mass of powder by centralite I and dinitrotoluene, surface-graphitised content of ethyl acetate of 0.1-0.9 wt % and moisture 0.2-0.9 wt %, with the following weight ratio of fractions, %: 0.63-0.4 mm not less than 75; 0.4-0.315 mm not more than 20; the sum of the coarse fraction remaining on a 0.63 sieve and the fine fraction passing through sieve 0.315 and remaining on sieve 0.16 mm - not more than 5.
Method of producing double-base pellet powder for hunting and sports cartridge / 2495859
Invention relates to production of double-base pellet powder for sports and hunting weapons. According to the invention, a phlegmatising apparatus is filled with water, pellet powder is immersed and the suspension is heated to temperature of 76-82°C while stirring; simultaneously, a phlegmatising aqueous emulsion, consisting of dinitrotoluene, centralite I and a protective colloid with concentration in water of 2.0-3.5 wt %, is prepared in an emulsifier for 20-30 minutes. At temperature of 76-82°C, the phlegmatising emulsion is poured into the phlegmatising apparatus and the powder is phlegmatised. While phlegmatising the powder, a phlegmatising emulsion consisting of water, triethylene glycol phthalate (MGF-9) and a protective colloid is prepared in the emulsifier. At temperature of 76-82°C and at the end of the time of phelgmatising the powder in the phlegmatising apparatus with a mixture of dinitrotoluene and centralite I, the emulsion of water and MGF-9 is poured from the emulsifier into the phlegmatising apparatus and re-phlegmatisation of the pellet powder is carried out. Phlegmatisation is carried out using pellet powder with size of powder elements of 0.315-0.63 mm and packed density of 0.970-0.990 kg/dm3.
Charge for 7,62 mm automatic rifle cartridge / 2495014
Invention relates to production of pellet powder for small arms. The charge is intended to be placed in an encapsulated shell with a bullet and is made from pellet powder elements consisting of nitrocellulose with nitrogen oxide content of 212.5-214.2 ml NO/g, 20-30 wt % recyclable non-phlegmatised wastes, 11.0-13.5 wt % nitroglycerine, 0.5-1.0 wt % diphenylamine, 0.2-0.4 wt % centralite II, with packed density of 0.945-0.995 kg/dm3, surface-phlegmatised 2.0-4.0 wt % centralite I and 1.5-2.2 wt % dinitrotoluene, surface-graphitised 0.1-0.3 wt % graphite, with moisture content of 0.2-0.9 wt % and ethyl acetate 0.1-0.9 wt %, with the weight ratio of fractions, %: 0.63-0.4 not less than 85; 0.4-0.315 not more than 10; the sum of the coarse fraction on a 0.63 sieve and the fine fraction passing through sieve 0.315 and remaining on sieve 0.16 not more than 5.
Method of producing pellet powder for small arm cartridges / 2495012
Invention relates to production of powder for small arms. The method involves feeding powder mass into a dispersion medium - water, adding solvent, preparing powder lacquer, dispersion thereof into spherical elements, dehydration thereof with sodium sulphate and distilling the solvent. The solvent used is spent ethyl acetate collected from the previous process of forming pellet powder without separation and solvent deficit is compensated with fresh ethyl acetate. The solvent is distilled from powder elements under a vacuum in a reactor, the vacuum being created by partial pressure difference between the reactor and a cooler.
Method of producing pellet powder for cartridges of sports and hunting weapons / 2495011
Invention relates to production of powder for cartridges of sports and hunting weapons. The method involves loading a feed tank/thickener with an aqueous powder suspension with concentration of the powder mass in the aqueous medium of 13.0-15.0 wt %, depositing the powder mass and decantation of the water. After decantation, the feed tank/thickener is filled with 1 pts.wt ethyl acetate to 1 pts.wt powder mass; the mixture is stirred and poured into a reactor for forming powder elements, where 2.0-3.0 pts.wt ethyl acetate to 1 pts.wt powder mass is poured; powder lacquer is prepared, dispersed into spherical particles in the presence of emulsifying agents, dehydrated with sodium sulphate and the solvent is distilled off.
Method of producing pellet powder / 2495010
Invention relates to production of double-base pellet powder for sports and hunting weapons. The method involves producing 0.315-0.63 mm pellet powder elements consisting of nitrocellulose, nitroglycerine, diphenylamine, centralite II, graphite and moisture, with packed density of 0.970-0.990 kg/dm3, phlegmatisation thereof in a phlegmatisation apparatus with a phlegmatising emulsion which is prepared from 1.5-3.0 wt % dinitrotoluene and 4.8-6.0 wt % centralite I with respect to the powder and with concentration in the aqueous medium of dinitrotoluene and centralite I of 2.0-3.5 wt %. The powder is phlegmatised for 30-50 minutes at temperature of 76-82°C.
Spherical powder for charges for hunting and sporting cartridge 7,62×51c / 2490242
Invention relates to field of obtaining spherical powders for small arms. Spherical powder includes nitrocellulose with content of nitrogen oxide 212.5-213.5, ml NO/g, nitroglycerol, diphenylamine, centralite I, centralite II, dinitrotoluene, ethylacetate, graphite and moisture, powder being additionally phlegmatised with dimethacrylate triethylene glycol phthalate (MGF-9).
 Method to produce ball powder / 2489415
Method includes preparation of water suspension of powder with power element size of 0.4-0.7 mm and loose density of 0.940-0.980 kg/dm3, consisting of nitrocellulose, diphenylamine, graphite, ethyl acetate and moisture. The suspension is prepared in a retarder device when mixed and heated to the temperature of 94-98°C. Simultaneously in the emulsifier they prepare a retarding emulsion containing dinitrotoluene (DNT) and centralite I (C I), with DNT and C I concentration in water medium equal to 2.0-3.5 wt % during mixing for 20-30 minutes and heating to the temperature of 94-98°C. Afterwards the retarding emulsion at the same temperature is drained into the retarder device, and the process of BP retardation is carried out for 30-50 minutes.
 Artillery ballistite / 2253645
Invention provides artillery ballistite with grains having porous structure, which comprises sensitizer: colloxylin and pyroxylin or cyclotetramethylenetetramine; chemical stabilizer: centralite; antistatic: graphite or carbon black; plasticizer: nitroglycerin and diethylene glycol dinitrate; burning modifier: titanium dioxide; burning stabilizer: complex lead-copper salt of phthalic acid; and process additives: industrial oil, zinc stearate.
 Method of manufacturing artillery ballistite / 2254311
Artillery ballistite mainly used as energy source for artillery missiles and in active reactive systems is manufactured on the base of pyroxylin and colloxylin. These components are first mixed at 15-35°C during 360 min. Resulting blend is squeezed to remove water until 6-12% moisture content and subjected to plasticization on continuous rolls to form tablets. Tablets are dried in drying drum to moisture content not superior to 1.0% and homogenized in screw-press, after which tablets are compacted into blocks and the latter into fuel elements on hydraulic press.
 Spherical retarded gunpowder for submachine gun and rifle cartridges / 2254312
Invention provides spherical retarded gunpowder consisting of spheroidally-shaped gunpowder grains with retarded surface layer containing nitrocellulose, nitroglycerin, ethyl acetate, Centralite no.1, diphenylamine, water, and retarding agent selected from dibutyl phthalate, dioctyl phthalate, diethyl hexylphthalate, triethylene glycol bis-methacrylate, oligoether acrylate, and their combinations. Thickness of retardant layer in gunpowder grain is S = 55-0.0312D (μm) wherein D is diameter of gunpowder grain. Concentration of retarding agent in retarded surface layer is 8-20 wt % and combustion heat is found from formula: Q = 685 + 0.244D.
 Gunpowder for building-and-assembly and pistol cartridges / 2254313
Invention provides gunpowder consisting of spheroidally-shaped grains with graphite surface containing pyroxylin with volume concentration of nitrogen at least 212 ml/g, nitroglycerin, diphenylamine, Centralite, ethyl acetate, graphite, and water. Ratio of thickness of gunpowder grain burning arch to gunpowder grain thickness is within a range of 0.273-0.420, initial specific surface of grain is 230-290 cm2/g, and combustion heat 1165-1210 kcal/kg. Gunpowder is appropriate for cartridges with caliber 6.8 x 11 mm.
Method of production of pellet powder / 2256636
Proposed method includes preparation of powder lacquer at mixing nitrocellulose ingredients in 4-5 mass parts of water with ethyl acetate, adding emulsifying agent, dispersing lacquer and removing solvent. Used as nitrocellulose ingredients are pyroxiline with ballistic powder or fine-grained pyroxiline powder with ballistic powder or all together: pyroxyline, fine-grained pyroxyline powder and ballistic powder at content of one of nitrocellulose ingredients not exceeding 30 mass-%. Emulsifying agent is added in the amount not exceeding 20-30 mass-% of total amount; dispersion of lacquer is continued for 10-20 min; then, process is discontinued for 10-20 min, after which dispersion is repeated and is continued for 10-20 min at introduction of remaining amount of emulsifying agent; hide glue is used as emulsifying agent. At content of one of nitrocellulose ingredients not exceeding 10 mass-%, dispersion cycle is repeated twice.
Porous spherical gunpowder manufacture method / 2258688
Spherical gunpowder for hand-guns, e.g. smooth-bore scatter-guns, is manufactured by mixing components in aqueous solution containing up to 3.0% salt for 10-15 min, preparing gunpowder lacquer in ethylacetate, dispersing it in presence of leather glue, distilling off ethylacetate, and drying.
Method of manufacturing dibasic gunpowder / 2260574
Invention is dealing with dibasic gunpowder, which can be used for armoring cartridges for rifle, artillery, and mortar systems. Method of invention consists in mixing cellulose nitrates, nitroglycerine, and in-water chemical stabilizer to form powder mass, pressing powder mass to remove water, rolling powder mass while performing heat treatment of mass to plasticize cellulose nitrates with nitroglycerine, and molding powder elements. Method is characterized by that, after pressing water out of powder mass, 30-80% aqueous solution of diethylene glycol monomethyl ether is added to cellulose nitrate mass as supplementary plasticizer in amount of 44-133% of the weight the mass and that, when the powder elements are molded, this supplementary plasticizer is removed via extraction with water at 20-60°C. Thus manufactured gunpowder is superior to existing analogs in what concerns its ballistic characteristics.
Ball-shaped powder / 2268869
The invention is pertaining to the field of production of ball-shaped powders for cartridges to smoothbore and rifled sports-hunting weapons. The invention presents a ball-shaped powder containing nitroglycerine, diphenylamine, centralite, ethyl-acetate, black lead, a moisture and cellulose nitrates taken in the particular ratios. The powder has a bulk density of 0.4 - 0.6 kg/dm3. The invention is aimed at provision of ballistic characteristics of cartridges of 12 caliber at exclusion of the unburnt fragments and flare-back of a shot, manufacturability of the cartridges assembly on the automatic cartridges charging production lines due to exclusion of the free volume in a cartridge at usage of a plastic wad-container.
 Ballistic propellant / 2271348
Ballistic solid propellant for a photo-dissociation laser contains nitrocellulose, nitroglycerin, octogen, industrial carbon, centralite and diphenylamine used as a stabilizer of chemical stability and process additives-liquid petroleum or industrial oil in a melt with 0.02-0.08 percent by mass of stearic acid mixed with sulforicinate E. The invention is aimed for production of a ballistic propellant with a high detonating velocity (8080-8250 m/s), improved gas dynamic characteristics of the shock wave and improved structure-mechanical characteristics. The offered composition of ballistic propellant has a high density (1.69-1.72 g/cu.cm). The propellant structure-mechanical characteristics provide for fastening of the charge in a horizontal position in the excitation unit of the photo-dissociation laser.
Solid rocket fuel for national economy-destined articles / 2272803
Objective of invention is providing environmentally safe fuels for national economy-destined articles, in particular for meteorological rockets, antihail installations, means for transportation of fire-extinguishing devices, and so forth. Rocket fuel of invention contains nitrocellulose, nitroglycerin, plasticizers (dinitrotoluene and dibutyl phthalate), chemical resistance stabilizer ("Tsentralit"), burning stabilizer (calcium carbonate), burning rate modifier (yellow ferric pigment and carbon), and process additive (melt of zinc stearate with polymethylsiloxane fluid at 0.1:1 ratio). Thus prepared solid rocket fuel produces no environmentally aggressive components in combustion products, has long warranty assurance, and ensures rocket engine operation stability within a wide pressure range without further labor consumption in component preparation operation.
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FIELD: chemistry. SUBSTANCE: invention relates to field of obtaining spherical gunpowder (SGP) for small arms, in particular, hunting rifles. Gun powder includes nitrocellulose with volume content of nitrogen oxide 210.5-213.0 ml NO/g, colloxyline NH, nitroglycerine with content to 20 wt %, centrolite I, centrolite II, diphenylamine, dinitrotoluene, ethylaccetate, and moisture. EFFECT: invention ensures increase of ballistic characteristics stability in hunting cartridge 7,62x51 (308Win) by weight of gun powder charge, by speed and dispersion of bullet flight, pressure of powder gases in channel of rifle barrel due to increase of energy characteristics and increase of density of spherical particles. 1 tbl, 5 ex
The invention relates to the field of spherical powders (TFP) for small arms. In the U.S. patents [1, 2] presents methods for obtaining TFP for small arms, consisting in grinding Pelkosenniemi pyroxylin powders (SP) in water, followed by dissolving in a solvent, dispersing the powder lacquer on spherical particles and the Stripping of solvent from them. The disadvantage of these methods is that the resulting TFP do not provide ballistic characteristics in a hunting cartridge, the 7.62×51(308Win). The closest technical solution is spherical pyroxylin powder to 5.6 mm sports-rifle cartridge [3] is a prototype, including wt.%: the dinitrotoluene (DNT) - 0,2...1,0; diphenylamine (DFA) - 0,4...0,8; carbon black and graphite in a ratio of(2:1)...(6:1) - 0,3...0,8; the ethyl acetate (EA) - from 0,3 to 0,9; moisture - 0,3...0,6; nitrocellulose (NC) with the content of nitric oxide no less than 213 ml NO/g - rest. The disadvantage of the spherical powder is that it does not provide ballistic characteristics in a hunting cartridge, the 7.62×51(308Win) as the speed of a bullet and the powder gas pressure in the barrel of the weapon. The aim of the invention is to increase the stability of the ballistic characteristics, characteristics of the mass of the powder charge velocity field is and bullets, the variation of the speed of flight of the bullet and the powder gas pressure in the barrel of the weapon. This goal is achieved by improving energy performance and increase the density of spherical particles by inputting the high content of nitroglycerin (up to 20 wt.%), in the following ratio, wt.%: - nitroglycerin - ...20,0 13,0 - centralit I - ...7,0 4,0 - centralite II - 0,1...0,3 - dinitrotoluene - 3,0 1,5... - diphenylamine - 1,1 0,5... - ethyl acetate - 0,9 0,1... - graphite - 0,1...0,3 - moisture - 0,2 0,9... - collection NC - 20,0 30,0... the nitrocellulose with a volume content nitric oxide 210,5...213,0 ml NO/g - rest. Nitroglycerin in the composition of gunpowder plays the role of energy supplements. Reduction of nitroglycerin less of 13.0 wt.% leads to increase of mass of the propellant charge and the reduction of speed of a bullet in the barrel of the weapon, and the increase of nitroglycerin more than 20.0 wt.% increases the pressure of the powder gases in the barrel of the weapon and increase the fiery when fired. Centralit and I DNT perform in the composition of gunpowder role phlegmatizers additives to provide progressive burning powder charge. Reducing centralita I less than 4.0 wt.% and dinitrotoluene less than 1.5 wt.% leads to reduction of weight of the powder charge and increase the pressure of the powder gases in the barrel of the weapon, and HC is the rise of centralita I more than 7.0 wt.% and dinitrotoluene more than 3.0 wt.% leads to increase of mass of the propellant charge and the reduction of speed of a bullet. Diphenylamine and centralite II is used in the composition of gunpowder as a stabilizer chemical resistance. Reduction of DFA less than 0.5 wt.% and centralite II less than 0.1 wt.% leads to lower chemical resistance of gunpowder, and the increase in DFA, more than 1.1 wt.% and centralite II more than 0.3 wt.% reduces the specific heat of combustion. The graphite in the composition of TFP plays the role of technological additives that improve the flowability of the powder and reduce the electrostatic characteristics. Reduction of graphite is less than 0.1 wt.% impairs the flowability of the powder and increases the electrostatic characteristics. The increase of graphite more than 0.3 wt.% causes dusting of free graphite in the process of filling cartridges. Moisture and ethyl acetate in the composition of gunpowder perform the role of technological additives. The decrease in EA of less than 0.1 wt.% and moisture is less than 0.2 wt.% due to the additional labor costs, and the increase in EA of more than 0.9 wt.% and moisture of more than 0.9 wt.% increases the weight of the powder charge and increases the pressure of the powder gases in the barrel of the weapon. Nitrocellulose comprising spherical powders performs the role of energetic and structural basis. The reduction of nitric oxide less 210,5 ml NO/r leads to an increase in the mass of the powder charge and increase the pressure of the powder gases in the barrel of the weapon, and the increase of nitric oxide more 213,0 ml NO/g is associated with technological t is unestami in its manufacture. The table shows the characteristics of the developed composition of TFE to hunting cartridge, the 7.62×51(308Win) within the boundary conditions (examples 1...3) and outside (examples 4, 5). Notes: Requirements for hunting cartridge, the 7.62×51 (308Win): the mass of the powder charge is not standardized, the average bullet velocity VSR- 810...830 m/s, the difference between the highest and lowest speed of bullets - not more than 35 m/s, the powder gas pressure, MPa: average no more than 328,4, the largest not more than 343,1, the least - no more 255,6.
From the presented results the table shows that the developed composition (example 1...3) TFP obtained for the 7.62×51 hunting is he the patron has a high bulk density and low porosity of the powder elements. All this allows to obtain stable ballistic characteristics by weight of the powder charge, the flight speed of the bullets, the variation speed of the flight of bullets, average and maximum pressure of the powder gases in the barrel of the weapon. Outside of boundary conditions (examples 4, 5) obtained spherical powder does not satisfy as the speed of a bullet and the powder gas pressure in the barrel of the weapon. Literature 1. U.S. patent No. 2843584. 2. U.S. patent No. 3378545. 3. RF patent №1808191 (C06B 25/22). Spherical powder for charges to hunting cartridge, the 7.62×51 (308Win), including nitrocellulose, nitroglycerin, centralit I, centralite II, diphenylamine, dinitrotoluene, ethyl acetate and moisture, characterized in that the spherical powder contains collection, as the power base comprising spherical powders using nitroglycerin with content to 20.0 wt.%, in the following ratios, wt.%:
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