Process for Producing Non-Detonable Training Aid Materials for Detecting Explosives

A method for manufacturing training aid materials for detecting homemade explosives includes spreading an explosive powder on a porous surface, storing the surface in a container that facilitates sublimation of the explosive powder such that the explosive powder redeposits onto the surface and into the pores over a period of time, and removing the surface from the container after the period of time to yield training aid materials. An additional method includes preparing a dilute solution of an explosive reaction mixture, and depositing the dilute solution on a surface prior to formation of an explosive product by the explosive reaction mixture. The surface is stored in a contain that facilitates formation of the explosive product, and removed after a period of time and cleaned to remove unreacted precursors to yield training aid materials. 1. A method for manufacturing training aid materials for detecting homemade explosives , comprising:spreading an explosive powder on a porous surface;storing the porous surface in a container that facilitates sublimation of the explosive powder such that the explosive powder redeposits onto the porous surface over a period of time; andremoving the porous surface from the container after the period of time.2. The method of claim 1 , wherein the surface comprises a glass microfiber filter claim 1 , and the explosive powder redeposits over the porous surface and into pores of the glass microfiber filter as part of the sublimation.3. The method of claim 1 , wherein the container comprises a plurality of aluminum foil layers claim 1 , and the storing the porous surface comprises wrapping the porous surface between the plurality of aluminum foil layers.4. The method of claim 1 , wherein the container comprises one or more substantially circular aluminum dishes having a similar diameter as a diameter or length of the porous surface.5. The method of claim 1 , wherein the container comprises a glass jar with a substantially air tight lid.6 ...

ACOUSTIC MIXING AS A TECHNIQUE FOR COATING PROPELLANT

A process for mixing two materials using acoustic energy. A first material and a second material are placed within a mixing vessel and acoustic energy is transferred to the vessel. The first material has a plurality of particles with porosity and the second material may or may not be a polymeric liquid. The acoustic energy mixes the first material and the second material, the second material coats the first material, and shear forces are created that force the second material into at least a portion of the porosity of the first material. 1. A process for mixing two materials , the process comprising:providing a mixing vessel;providing a first material;placing the first material into the mixing vessel;providing a second material;placing the second material into the mixing vessel;providing an acoustic energy source and transferring acoustic energy from the acoustic energy source to the mixing vessel, the first material and the second material, the acoustic energy mixing the first material with the second material and coating the first material with the second material.2. The process of claim 1 , wherein the first material has porosity claim 1 , the second material is a plurality of metal particles and the acoustic energy forces the plurality of metal particles into the porosity of the first material.3. The process of claim 8 , wherein the plurality of metal particles are a plurality of catalytic particles.4. The process of claim 9 , wherein the first material is a plurality of porous metal particles.5. The process of claim 1 , wherein the first material has a structured matrix and the second material is an active material.6. The process of claim 11 , further including removing the first material and leaving the active material claim 11 , the active material having a form of the structured matrix.7. The process of claim 12 , wherein the first material is removed by dissolution.8. The process of claim 1 , wherein the first material is a filter media material and the ...

LAYERED REACTIVE PARTICLES WITH CONTROLLED GEOMETRIES, ENERGIES, AND REACTIVITIES, AND METHODS FOR MAKING THE SAME

An energetic composite having a plurality of reactive particles each having a reactive multilayer construction formed by successively depositing reactive layers on a rod-shaped substrate having a longitudinal axis, dividing the reactive-layer-deposited rod-shaped substrate into a plurality of substantially uniform longitudinal segments, and removing the rod-shaped substrate from the longitudinal segments, so that the reactive particles have a controlled, substantially uniform, cylindrically curved or otherwise rod-contoured geometry which facilitates handling and improves its packing fraction, while the reactant multilayer construction controls the stability, reactivity and energy density of the energetic composite. 115-. (canceled)16. A method for fabricating an energetic composite comprising a plurality of reactive particles , the method comprising:(a) providing a mesh substrate;(b) successively depositing one or more materials onto one side of the mesh substrate to form thereon a reactive multilayer having a trough shape; and(c) removing the reactive multilayer from the mesh substrate to provide an energetic composite comprising a plurality of reactive particles, wherein each reactive particle has a substantially uniform geometry and a cylindrically-curved body radially spaced from a corresponding cylindrical axis, wherein the cylindrically-curved body has a trough shape and a reactive multilayer construction with successive reactive layers stacked in a radially outward direction from the cylindrical axis.17. The method of claim 16 , wherein at least one of the one or more materials is deposited onto the mesh substrate by a deposition method selected from the group consisting of physical vapor deposition claim 16 , chemical vapor deposition claim 16 , electrochemical deposition claim 16 , electrolytic deposition claim 16 , and atomic layer epitaxy.18. The method of claim 16 , wherein the physical vapor deposition comprises magnetron sputter deposition.19. The ...

Fuel procurement tool and method(s) of use

A handheld tool configured to procure fuel is described. Embodiments of the fuel procurement tool include a handhold having a cutting mechanism located proximate one end of the handhold. Typically, the cutting mechanism can include at least one cutter link having a depth gauge, a top plate, and a gullet formed between the depth gauge and the top plate. The fuel procurement tool can be implemented to procure kindling from a piece of wood.

HIGH ENERGY REDUCED SENSITIVITY TACTICAL EXPLOSIVES

A high energy explosive having reduced shock sensitivity for tactical weapon platforms to increase the safety margins to the warfighter if the weapon became involved in an unplanned event on the battlefield. The high energy explosive having a reduced crystalline particle size below about 30 microns, preferably 10 microns, and coated with a thermoplastic elastomer, which is capable of being compressed into a warhead configuration and attached to a weapon. The high energy explosive having a greater than 25% reduction in shock sensitivity compared to the same crystalline energetic material without undergoing size reduction prior to being coated. 1. A high energy insensitive explosive composition , the composition comprising:a plurality of crystalline energetic particles coated with at least one elastomeric material, wherein at least 20% of the plurality of crystalline energetic particles have an average particle size of less than about 30 microns, and wherein the plurality of coated crystalline energetic particles have an average particle size greater than about 50 microns.2. The high energy insensitive explosive composition of claim 1 , wherein the plurality of crystalline energetic particles prior to being coated has an average particle size between about 0.5 microns to about 20 microns.3. The high energy insensitive explosive composition of claim 1 , wherein at least 80% of the plurality of crystalline energetic particles prior to being coated have an average particle size of less than 10 microns.4. The high energy insensitive explosive composition of claim 1 , wherein the plurality of crystalline energetic particles comprises 1 claim 1 ,3 claim 1 ,5 claim 1 ,7-tetranitro-1 claim 1 ,3 claim 1 ,5 claim 1 ,7-tetraazacyclooctane.5. The high energy insensitive explosive composition of claim 1 , wherein the at least one elastomeric material comprises a polyester-based thermoplastic polyurethane claim 1 , a polyether-based thermoplastic polyurethane claim 1 , a ...

Additive Manufactured Thermoplastic-Aluminum Nanocomposite Hybrid Rocket Fuel Grain and Method of Manufacturing Same

A hybrid rocket solid fuel grain having a cylindrical shape and defining a center port is additive manufactured from a compound of thermoplastic fuel and passivated nanocomposite aluminum additive. The fuel grain comprises a stack of fused layers, each formed as a plurality of fused abutting concentric circular beaded structures of different radii arrayed defining a center port. During operation, an oxidizer is introduced along the center port, with combustion occurring along the exposed port wall. Each circular beaded structure possesses geometry that increases the surface area available for combustion. As each layer ablates the next abutting layer, exhibiting a similar geometry is revealed, undergoes a gas phase change, and ablates. This process repeats and persists until oxidizer flow is terminated or the fuel grain material is exhausted. To safety achieve this construction, a fused deposition additive manufacturing apparatus, modified to shield the nanocomposite material from the atmosphere is used. 1. A method of making a fuel grain for use in a hybrid rocket engine , the method comprising:compounding a first material suitable as a hybrid rocket fuel and a second energetic and pyrophoric nanoscale metallic material according to a predetermined mixture ratio to form a third material;the third material serving as feedstock material for use in an additive manufacturing apparatus; andoperating the additive manufacturing apparatus using the feedstock material to fabricate a fuel grain comprising a plurality of fused stacked layers of solidified fuel grain material, each layer of the plurality of layers comprising a plurality of bonded and concentric substantially circular ring-shaped beads of different radii and defining a center combustion port.2. The method of further comprising drying the feedstock material and then elevating a temperature of the feedstock material to attain a predetermined viscosity for the feedstock material.3. The method of the step of ...

Nanoenergetic material composite having remote ignition characteristic by high-power pulsed laser beam and method of preparing same

A nanoenergetic material composite having a remote ignition characteristic by a high-power pulsed laser beam is prepared by adding various contents of multiwalled carbon nanotubes (MWCNTs) to a nanoenergetic composite material (nEM) to enable remote ignition by a high-power laser beam. The nanoenergetic material composite is a MWCNT/nEM composite powder prepared by adding multiwalled carbon nanotubes to the nanoenergetic material, which is a mixture of fuel material nanoparticles and metal oxidizer nanoparticles, wherein the multiwalled carbon nanotubes enhance a combustion rate of the MWCNT/nEM composite powder by delivering thermal energy upon remote optical ignition by the high-power pulsed laser beam.

Coating method for energetic material and coating system for coating energetic material using said type of coating method

The invention relates to a coating method for energetic material (), in particular in a vacuum. The energetic material () is coated by chemical or physical vapor deposition. The coating material () is electrically conductive and/or hydrophobic or hydrophilic. The energetic material () is shaped as grains and/or pellets and/or is in the form of a powder. 111-. (canceled)1312. The coating method according to claim 12 , characterized in that the energetic material () comprises an explosive claim 12 , a pyrotechnic composition and/or a propellant.1412. The coating method according to claim 12 , characterized in that the energetic material () has an explosion heat of more than 2500 kJ/kg claim 12 , a burn rate of more than 30 m/s and/or a Trauzl number of more than 30 cm.1512. The coating method according to claim 12 , characterized in that the energetic material () comprises black powder claim 12 , nitroglycerin and/or nitrocellulose.1616. The coating method according to claim 12 , characterized in that the coating material () contains halogens; monomers containing at least one halogen; silicon; monomers containing silicon; silazanes claim 12 , in particular hexamethyldisilazane; siloxanes; silanes; fluorine; hydrocarbon; in particular saturated and/or unsaturated hydrocarbon; aliphatic hydrocarbon; aromatic hydrocarbon; derivatives of aliphatic hydrocarbon and/or aromatic hydrocarbon claim 12 , in particular containing heteroatoms; oxygen; conductive polymers; alkanes claim 12 , in particular fluoroalkanes; cycloalkanes; mixtures containing alkanes and halogens claim 12 , alkenes claim 12 , mixtures containing alkenes and halogens; hexamethyldisiloxane; fluoroacrylates; octafluorocyclobutane; ethine; parylene; paraffin; octene; hexafluoroethane; acrylic acid and/or combinations of the aforementioned substances.17. The coating method according to claim 12 , characterized in that the coating takes place at a pressure of a maximum of 10 millibars and/or a temperature of a ...

ENERGY-RELEASING COMPOSITE MATERIAL AND METHOD FOR MANUFACTURING SAME

The invention relates to an energy-releasing composite material comprising at least one nanoporous material and at least one inorganic oxidant, characterised in that said nanoporous material is a nanoporous carbon material. 1. Composite energetic material comprising at least one nanoporous material and at least one inorganic oxidiser , characterised in that said nanoporous material is a nanoporous carbonaceous material , said composite energetic material has a decomposition initiation temperature on a thermogram obtained by differential scanning calorimetry of less than 5° C./minute in a closed crucible (DSC peak start temperature) preferably from 50° C. to 200° C. , more preferably from 100° C. to 150° C. , relative to the decomposition initiation temperature on the DSC thermogram of the inorganic oxidiser , and has at least 30% , preferably at least 50% , particularly preferably at least 70% , even more preferably at least 80% of the porosity occupied by said inorganic oxidiser , and at most 90% of the porosity , preferably at most 95% , more particularly at most 97% , more preferably at most 98% of the porosity occupied by said inorganic oxidiser , said energetic material having an impact sensitivity of at least 2J.2. Composite energetic material according to claim 1 , having a bulk density greater than or equal to 1.0 g/cm claim 1 , preferably greater than or equal to 1.25 g/cm claim 1 , more preferably greater than 1.35 g/cmand even more preferably greater than 1.5 g/cm.3. Composite energetic material according to claim 1 , having a micropore volume of pores with a diameter of less than 2 nm of between 0.01 cm/g and 1.0 cm/g claim 1 , calculated by applying the Dubinin-Radushkevitch model applied to nitrogen adsorption isotherms at 77.4K.4. Composite energetic material according to claim 1 , comprising a mesopore volume of pores with a diameter of between 2 nm and 50 nm of between 0.05 cm/g and 3.0 cm/g claim 1 , calculated based on the pore size distribution ...

METHODS FOR MANUFACTURING PYROTECHNIC MATERIAL FOR THERMAL BATTERIES

Embodiments directed to a method of manufacturing a pyrotechnic article for use with a thermal battery are disclosed. The method includes forming an iron oxide preform from iron oxide powder. The method also includes reducing the iron oxide preform to an iron preform made of metallic iron. The method further includes impregnating the iron preform with an oxidizer to form the pyrotechnic article. 1. A method of manufacturing a pyrotechnic article for use with a thermal battery , the method comprising:forming an iron oxide preform from iron oxide powder;reducing the iron oxide preform to an iron preform made of metallic iron; andimpregnating the iron preform with an oxidizer to form the pyrotechnic article.2. The method of claim 1 , wherein the iron oxide preform is an iron oxide pellet claim 1 , and wherein forming the iron oxide preform comprises pressing a volume of iron oxide powder to form the iron oxide pellet.3. The method of claim 1 , wherein the iron oxide preform is a tape-cast iron oxide sheet claim 1 , and wherein forming the iron oxide preform comprises:forming an iron oxide slip comprising iron oxide powder and a fluid medium; anddepositing the iron oxide slip on a carrier substrate to form the tape-cast iron oxide sheet.4. The method of claim 1 , further comprises pre-sintering the iron oxide preform.5. The method of claim 1 , wherein reducing the iron oxide preform to the iron preform comprises exposing the iron oxide preform to hydrogen gas at a predetermined range of temperature to reduce iron oxide to metallic iron.6. The method of claim 1 , wherein impregnating the iron preform comprises spraying the iron preform with a solution of the oxidizer and a solvent or immersing the iron preform in a solution of the oxidizer and a solvent.7. The method of claim 6 , wherein the oxidizer is lithium perchlorate and the solvent is acetone.8. The method of claim 1 , wherein the oxidizer is potassium perchlorate.9. A method of manufacturing a pyrotechnic pellet ...

ENERGETIC MATERIALS

The invention is directed to a radiation curable energetic composition, to a method of forming a three-dimensional energetic object, to a three-dimensional energetic object, and to uses of the radiation curable energetic composition. 126-. (canceled)27. A method of forming a three-dimensional energetic object comprising the steps of forming and selectively curing a layer of a radiation curable energetic composition comprising(a) one or more polymerisable components,(b) one or more polymerisation photoinitiators, and(c) one or more energetic components,with actinic radiation and repeating the steps of forming and selectively curing a layer of the radiation curable energetic composition a plurality of times to obtain a three-dimensional energetic object.28. The method of claim 27 , wherein said one or more polymerisable components comprise fuel and oxidiser.29. The method of claim 27 , wherein said polymerisable components comprise (a1) one or more free radical polymerisable components claim 27 , and said polymerisation photoinitiators comprise (b1) one or more polymerisation photoinitiators for free radical polymerisation.30. The method of claim 29 , wherein said radical polymerisable components comprise one or more selected from the group consisting of an aliphatic (meth)acrylate claim 29 , an aromatic (meth)acrylate claim 29 , a cycloaliphatic (meth)acrylate claim 29 , an arylaliphatic (meth)acrylate claim 29 , and a heterocyclic (meth)acrylate.31. The method of claim 27 , wherein said polymerisable components comprise (a2) one or more cationically polymerisable components claim 27 , and said polymerisation photoinitiators comprise (b2) one or more polymerisation photoinitiators for cationic polymerisation.32. The method of claim 31 , wherein said cationically polymerisable component comprises one or more selected from the group consisting of cyclic ether compounds claim 31 , cyclic acetal compounds claim 31 , cyclic thioether compounds claim 31 , spiro-orthoester ...

PROPELLANT CHARGE

The invention is directed to a propellant charge for guns, to a combination of a propellant charge and a primer, to a firearms cartridge, and to a method for modifying the surface of a propellant charge. 1. A propellant charge for guns , comprising multiple propellant grains , wherein an exterior part of part of the propellant grains has been subjected to a surface modification treatment comprising the successive steps ofsuspending propellant grains in water to prepare a slurry,adding an organic solvent to the propellant grains before, after and/or during the preparation of the slurry,mixing the slurry that comprises water and organic solvent for a period of 120 minutes or less,lowering the concentration of organic solvent,removing organic solvent, anddrying the propellant grains to remove water;wherein part of the propellant grains has not been subjected to the surface modification treatment.2. The propellant charge for guns of claim 1 , wherein the organic solvent is added to the propellant grains before the preparation of the slurry.3. The propellant charge for guns of claim 1 , wherein the organic solvent is added to the propellant grains after the preparation of the slurry.4. The propellant charge for guns of claim 1 , wherein the organic solvent is added to the propellant grains during the preparation of the slurry.5. The propellant charge for guns of claim 1 , wherein the surface modification treatment further comprises removing water and/or organic solvent after mixing the slurry that comprises water and organic solvent for a period of 120 minutes or less and before lowering the concentration of organic solvent.6. A propellant charge for guns claim 1 , comprising multiple propellant grains claim 1 , wherein an exterior part of part of the propellant grains has been subjected to a surface modification treatment comprising the successive steps ofwetting propellant grains with water or water vapour,adding an organic solvent to the propellant grains before, ...

COATINGS ON PARTICLES OF HIGH ENERGY MATERIALS AND METHODS OF FORMING SAME

The present invention relates to the field of coatings on high-energy materials, devices or products that comprise the coated high-energy materials, functional coating materials and methods for producing and using the same. In particular, the present invention relates to energetic materials having initiated release coatings to improve the performance and shelf-life of the devices, products and/or raw materials, suitable for use as energetics or propellants for munitions, rockets, pyrotechnics, flares or other devices or components. 1. A method of making a coated particle , comprising providing core particles having particle surfaces and moving the core particles to expose the particle surfaces in a first reaction chamber;first dosing the core particles with an amount of first precursor that is less than that required to fully saturate all the surfaces to form first coated particles;after the first dosing, evacuate or purge the first reaction chamber, and/or transport the first coated particles to a second reaction chamber;second dosing the first coated particles with an amount of first precursor that is less than that required to fully saturate all the surfaces on the core particles to form second coated particles in the first reaction chamber or the second reaction chamber; wherein there is no step of reacting with a second precursor between the first dosing and the second dosing;after the second dosing, evacuate or purge the reaction chamber used in the second dosing step; andthird dosing the second coated particles with a second precursor wherein the second precursor reacts with the coated particles to form a passivation coating on the core particles.2. The method of wherein claim 1 , in the third dosing claim 1 , there is an amount of second precursor that is less than that required to fully saturate all the surfaces on the second coated particles; and after the third dosing claim 1 , evacuate or purge the reaction chamber used in the third dosing step;and ...

Graphene/Metal or Metalloid Core-Shell Composite and Manufacturing Method Thereof

The present invention relates to a manufactured graphene/metal or metalloid core-shell composite and manufacturing method thereof. The method comprising: using a modified graphene oxide as a base, then performing concentration and steam drying followed by organic solvent replacement to obtain a modified graphene oxide organic solvent; using a liquid-phase self-assembly method to coat the modified graphene oxide onto a surface of the metal or metalloid to form a graphene/metal or metalloid coated particle solution, then filtering and drying to obtain the graphene metal/metalloid core-shell composite. The method improves upon a conventional organic and inorganic material coating technique, and reduces an impact of a water-based solvent and high temperature on a highly reactive metal and metalloid, thereby expanding the feasibility of the coating technique and addressing a barrier of applicability of graphene and reactive metal or metalloid in the field of energetic materials. 1. A graphene/metal or semi-metal composite material with shell-core structure , of which the general structure formula is (R-GO)M , wherein R is a surface functional group , GO is graphene oxide , and M is a metal or a semi-metal.2. The graphene/metal or semi-metal composite material with shell-core structure according to claim 1 , wherein the surface functional group is amine group claim 1 , hydroxylamine group claim 1 , acyl group claim 1 , amide group or epoxy group.3. The graphene/metal or semi-metal composite material with shell-core structure according to claim 1 , wherein the metal is Ni claim 1 , Zn claim 1 , Al claim 1 , Mg claim 1 , Zr claim 1 , Fe claim 1 , Ag claim 1 , Pt or Au.4. The graphene/metal or semi-metal composite material with shell-core structure according to claim 1 , wherein the semi-metal is metal hydride claim 1 , intermetallic compound or metal oxide.5. The graphene/metal or semi-metal composite material with shell-core structure according to claim 4 , wherein the ...

FUEL PROCUREMENT TOOL AND METHOD(S) OF USE

A handheld tool configured to procure fuel is described. Embodiments of the fuel procurement tool include a handhold having a cutting mechanism located proximate one end of the handhold. Typically, the cutting mechanism can include at least one cutter link having a depth gauge, a top plate, and a gullet formed between the depth gauge and the top plate. The fuel procurement tool can be implemented to procure kindling from a piece of wood. 1. A handheld tool for procuring kindling , the handheld tool comprising:a handhold having a first end and a second end; a depth gauge;', 'a first top plate having a cutting edge;', 'a first gullet formed between the depth gauge and the first top plate;', 'a second top plate having a cutting edge; and', 'a second gullet formed between the first top plate and the second top plate., 'a cutting mechanism disposed proximate the first end, the cutting mechanism consisting of2. The handheld tool of claim 1 , wherein the cutting mechanism is an integral part of the handhold.3. The handheld tool of claim 1 , wherein the first top plate is oriented opposite of the second top plate.4. The handheld tool of claim 3 , wherein (i) the first top plate extends out perpendicular in a first direction from a parallel orientation to the depth gauge claim 3 , and (ii) the second top plate extends out perpendicular in a second direction from a parallel orientation to the depth gauge that is opposite the first direction.5. The handheld tool of claim 1 , wherein the cutting mechanism is oriented down at approximately 45 degrees from parallel with a longitudinal axis of the handhold.6. The handheld tool of claim 1 , wherein a width and a thickness of the second end is tapered towards a face of the second end.7. The handheld tool of claim 6 , wherein the face of the second end includes a concave shape.8. The handheld tool of claim 1 , wherein the first end includes a multi-ridged edge located at a trailing end of the cutting mechanism.9. The handheld tool of ...

Flameless Igniting Slurry Composition and Method of Preparing

A flameless igniting slurry composition has an oxidizer, a fuel, a flame retardant, a liquid, and a rheology modifier. The rheology modifier and the flame retardant may be in particulate form. The flame retardant may be a water-soluble salt. The liquid may be water. The oxidizer may be potassium nitrate. The fuel may be silicon and charcoal. The composition may consist of on a mass basis 25-50% oxidizer, 20-30% fuel, 2-5% flame retardant, and 0.5-10% rheology modifier. The invention may be a device consisting of a shape of absorbent web material impregnated with the composition in a dried state. The invention may be a device consisting of the composition in a dried, particulate form. A process for producing the composition is also disclosed. 1. A pyrotechnic flameless ignition composition comprising:an oxidizer;a fuel;a flame retardant;a liquid; anda rheology modifier.2. The composition of wherein the rheology modifier is in particulate form.3. The composition of wherein the rheology modifier is at least one of the group consisting of polyethylene glycol claim 1 , polyvinyl alcohol claim 1 , polyvinyl pyrrolidone claim 1 , polysaccharides claim 1 , sucroglycerides of edible vegetable oil claim 1 , and powdered smectite clay.4. The composition of wherein the flame retardant is in particulate form.5. The composition of wherein the flame retardant is a water-soluble salt.6. The composition of wherein the water-soluble salt is at least one of the group consisting of guanidine hydrochloride claim 5 , guanidine acetate claim 5 , guanidine sulfate claim 5 , guanidine carbonate claim 5 , guanidine thiocyanate claim 5 , guanidine nitrate claim 5 , and guanidine carbonate.7. The composition of wherein the liquid is an organic solvent.8. The composition of wherein the liquid is water.9. The composition of wherein the oxidizer is potassium nitrate.10. The composition of wherein the fuel is at least one of the group consisting of silicon and charcoal.11. The composition of ...

Additive manufacturing using pressurized slurry feed

An additive manufacturing process includes pressurizing and heating a slurry, flowing the pressurized heated slurry through a nozzle, and depositing the slurry in a predetermined pattern.

Co-Layered Propellant Charge

The invention is directed to a co-layered propellant grain having an exposed outer surface, wherein said propellant grain comprises an outer layer comprising a slow burning propellant composition located on essentially the entire outer surface of the grain, and an inner layer comprising a fast burning propellant composition having a higher linear burn rate than said slow burning propellant composition; wherein said propellant grain has a structure such that after ignition, the inner layer becomes increasingly exposed at the outer surface. 1. A propellant grain having an exposed outer surface , wherein said propellant grain comprises an outer layer comprising a slow burning propellant composition located on essentially the entire outer surface of the grain , and an inner layer comprising a fast burning propellant composition having a higher linear burn rate than said slow burning propellant composition; wherein said propellant grain has a structure such that after ignition , the inner layer becomes increasingly exposed at the outer surface , wherein the grain further comprises an exposed inner surface having an area that increases after ignition.2. The propellant grain according to claim 1 , wherein said inner layer is located on at least part of the inner surface.3. The propellant grain according to claim 1 , having a longitudinally extending shape and one or more perforations passing through the grain in the length direction that provide said inner surface of the grain.4. The propellant grain according to having a L/D ratio of more than 2 claim 1 , wherein the L/D ratio is defined as the ratio of the maximum dimension of the grain in the length direction divided by the maximal dimension of the grain perpendicular to the length direction of the grain.5. The propellant grain according to claim 1 , having a cylindrical or prism shape.6. The propellant grain according to claim 1 , wherein said inner layer has a cross-sectional shape that has one or more vertices ...

NANOENERGETIC MATERIAL COMPOSITE-BASED SOLID PROPELLANT, METHOD OF PREPARING THE SAME, AND PROJECTILE USING THE SAME

Disclosed are a nanoenergetic material composite-based solid propellant, a method of preparing the same, and a projectile using the same. The propellant includes: potassium nitrate-sucrose (KNSU) composite powder; and nanoenergetic material (nEM) composite powder in a solid powder form mixed with the KNSU composite powder to prepare a KNSU/nEM propellant. The method includes: preparing KNSU composite powder; preparing nEM composite powder; and preparing a KNSU/nEM propellant by mixing the KNSU composite powder and the nEM composite powder in a solid powder form. The projectile includes: a clay block; a clay nozzle responsible for releasing the pressure generated by explosion of a propellant; and a propellant lamination area disposed between the clay block and the clay nozzle. Upon ignition of the KNSU/nEM propellant, the nEM composite powder increases the combustion rate and combustion temperature of a potassium nitrate-sucrose (KNSU) propellant. 1. A nanoenergetic material composite-based solid propellant , comprising:potassium nitrate-sucrose (KNSU) composite powder; andnanoenergetic material (nEM) composite powder in a solid powder form mixed with the potassium nitrate-sucrose (KNSU) composite powder to prepare a KNSU/nEM propellant,wherein upon ignition of the KNSU/nEM propellant, the nanoenergetic material (nEM) composite powder increases the combustion rate and combustion temperature of a potassium nitrate-sucrose (KNSU) propellant.2. The nanoenergetic material composite-based solid propellant according to claim 1 , wherein the potassium nitrate-sucrose (KNSU) composite powder is prepared by physically mixing sucrose (CHO) and potassium nitrate (KNO) in a mass ratio of 35 to 65 (CHO:KNO=35:65).3. The nanoenergetic material composite-based solid propellant according to claim 1 , wherein the nanoenergetic material (nEM) composite powder is prepared by mixing Al nanoparticles (Al NPs) as a fuel material and CuO nanoparticles (CuO NPs) as an oxidizing material in ...

Biodegradable reactive shooting target and method of manufacture

A concealed amalgamated neutralizer covertly combines neutralizer material comprised of various combinations of inert materials such as calcium carbonate or silicates with common explosive material for the prevention of malicious use of the explosive material in improvised explosive devices. The concealed amalgamated neutralizer device may vary in shape, size, and color and is therefore adaptable to varying methods of containment typified by common pyrotechnic products. The neutralizer material mimics the explosive material of the pyrotechnic products without detection. Upon disassembly of a concealed amalgamated neutralizer device, the neutralizer material is mixed with and neutralizes the explosive material rendering the explosive material useless as a component for an improvised explosive device. A biodegradable container is also provided for the amalgamated neutralizer and the explosive material.

EXPLOSIVE MICROPOROUS COORDINATION POLYMERS

Employing non-energetic MCPs as hosts (fuel) for the adsorption of oxidant molecules enables the intimate and molecular scale mixing of fuel and oxidizer on a level that is not commonly achievable in traditional energetic mixtures. The adsorption of the oxidants into MOF-5 resulted in increased heat released upon decomposition, which shows potential for utilization of this method as a platform to develop high-performance primary energetic materials. 1. An energetic composition comprising:a first component comprising a nanostructured sorbent, that is a crystalline porous coordination polymer, consisting of at least one metal node or cluster which is coordinated to an organic linker forming at least one porous framework;a second component comprising an oxidant infiltrated into the pores of the sorbent,wherein the second component is present in an amount such that the oxidant is at least 10% of the weight of the energetic composition;a combination of nanostructured sorbent (fuel) and oxidant resulting in a material which is more sensitive to detonation by impact, friction, spark, or thermal stimulus than either of the components.2. The composition according to where the ratio of oxidant to nanostructured sorbent is such that the value of the oxygen balance of the composition is closer to zero than the value of the oxygen balance of either of the components.3. The composition according to where the oxygen balance is less than 35% and more than −35%.4. The composition according to where the oxygen balance is less than 10% and more than −10%.5. The composition according to where the impact sensitivity is greater than pentaerythritol tetranitrate (PETN).6. The composition according to where the oxidizer is a liquid.7. The composition according to where the oxidizer is a solid.8. The system according to wherein said oxidant comprises tetranitromethane or hexanitroethane.9. A method for producing the composition according to comprising infiltrating the oxidant by diffusion ...

Coatings on particles of high energy materials and methods of forming same

The present invention relates to the field of coatings on high-energy materials, devices or products that comprise the coated high-energy materials, functional coating materials and methods for producing and using the same. In particular, the present invention relates to energetic materials having initiated release coatings to improve the performance and shelf-life of the devices, products and/or raw materials, suitable for use as energetics or propellants for munitions, rockets, pyrotechnics, flares or other devices or components.

Method of producing mono-base pellet powder for small arms

FIELD: weapons and ammunition. SUBSTANCE: invention relates to production of monobasic pellet powders for small arms. Powder elements consisting of nitrocellulose, diphenylamine, graphite and moisture, are phlegmatised in a phlegmatisation apparatus phlegmatising emulsion. Water is poured into phlegmatisation apparatus, in turbulent mixing conditions pellet powder is loaded and mixture is heated to temperature of 75-80 °C. Upon achieving temperature of mixture, skin glue and phlegmatizing agent consisting of dinitrotoluene and centralite 1 are added to phlegmatisation apparatus. For 10-15 minutes mixture is heated to temperature of 94-98 °C. Powder is phlegmatised for 40-60 minutes, after which powder is washed. EFFECT: method provides more complete precipitation of phlegmatisers on surface of powder elements during phlegmatisation of powder improves stability of ballistic characteristics of mono-base pellet powder. 1 cl, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 602 906 C2 (51) МПК C06B 21/00 (2006.01) C06B 25/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015114197/05, 16.04.2015 (24) Дата начала отсчета срока действия патента: 16.04.2015 (43) Дата публикации заявки: 10.11.2016 Бюл. № 31 (45) Опубликовано: 20.11.2016 Бюл. № 32 2 6 0 2 9 0 6 R U (54) СПОСОБ ПОЛУЧЕНИЯ ОДНООСНОВНОГО СФЕРИЧЕСКОГО ПОРОХА ДЛЯ СТРЕЛКОВОГО ОРУЖИЯ (57) Реферат: Изобретение относится к получению вводят мездровый клей и флегматизатор, одноосновных сферических порохов для состоящий из динитротолуола и централита 1. В стрелкового оружия. Пороховые элементы, течение 10-15 мин ведут нагрев смеси до состоящие из нитроцеллюлозы, дифениламина, температуры 94-98°С. В течение 40-60 мин ведут графита и влаги, флегматизируют в аппаратефлегматизацию пороха, после чего порох флегматизаторе флегматизирующей эмульсией. промывают. Способ обеспечивает более полное В аппарат-флегматизатор заливают воду, при высаживание ...

Additive manufacturing using fuel mass supply under pressure

FIELD: chemistry.SUBSTANCE: invention relates to an additive manufacturing method. Technical result is achieved by an additive manufacturing method, which includes a step of increasing fuel mass pressure and heating it. Pressurized heated fuel mass flows through the nozzle and multiple layers of the fuel mass are applied to the preset model, wherein said heating is performed in the nozzle. Heating causes dissolution of polymer particles with a liquid plasticiser. Fuel mass containing plastisol and solid energy material is used. Plastisol is a mixture or suspension of polymer particles in a liquid plasticiser.EFFECT: technical result is expansion of arsenal of fuel cell manufacturing equipment.7 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 698 678 C2 (51) МПК B29C 64/165 (2017.01) B33Y 10/00 (2015.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B29C 64/165 (2019.05); B33Y 10/00 (2019.05) (21)(22) Заявка: 2017111002, 10.09.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: 28.08.2019 16.09.2014 US 62/051,227 (43) Дата публикации заявки: 17.10.2018 Бюл. № 29 (45) Опубликовано: 28.08.2019 Бюл. № 25 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.04.2017 (56) Список документов, цитированных в отчете о поиске: WO 2013019876 A2, 07.02.2013. US 3290190 A, 06.12.1966. US 20090217525 A1, 03.09.2009. DE 10150256 A1, 10.07.2003. RU 2457112 C1, 27.07.2012. 2 6 9 8 6 7 8 (73) Патентообладатель(и): АЭРОДЖЕТ РОКЕТДАЙН, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: R U 10.09.2015 (72) Автор(ы): ХАСБЭНД Кларенс (US), ВЕНДЛБЕРГЕР Джули (US), БРАШВУД Шон (US), ДОЛЛ Даниэль (US), О'КОННЕР Роберт (US) US 2015/049327 (10.09.2015) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 9 8 6 7 8 WO 2016/064489 (28.04.2016) Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара (54) АДДИТИВНОЕ ИЗГОТОВЛЕНИЕ С ИСПОЛЬЗОВАНИЕМ ПОДАЧИ ТОПЛИВНОЙ МАССЫ ПОД ...

ADDITIVE MANUFACTURE USING FUEL SUPPLY UNDER PRESSURE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 111 002 A (51) МПК B29C 67/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017111002, 10.09.2015 (71) Заявитель(и): АЭРОДЖЕТ РОКЕТДАЙН, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 16.09.2014 US 62/051,227 29 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.04.2017 US 2015/049327 (10.09.2015) (87) Публикация заявки PCT: WO 2016/064489 (28.04.2016) A Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара R U (57) Формула изобретения 1. Аддитивный способ изготовления, содержащий: повышение давления топливной массы и ее нагревание; протекание находящейся под давлением нагретой топливной массы через сопло; и нанесение топливной массы по заданной модели. 2. Способ по п. 1, в котором нагревание выполняют в нагревательном блоке, примыкающем к соплу выше по потоку от указанного сопла. 3. Способ по п. 1, в котором нагревание выполняют в сопле. 4. Способ по п. 1, в котором топливную массу нагревают до температуры, которая равна или выше температуры отверждения топливной массы. 5. Способ по п. 1, дополнительно содержащий инициирование растворения поливинилхлоридного компонента топливной массы во время нагревания. 6. Способ по п. 1, дополнительно содержащий инициирование затвердения топливной массы во время ее нанесения. 7. Способ по п. 1, дополнительно содержащий подачу топливной массы из находящегося под давлением сосуда к соплу, причем сосуд под давлением имеет давление, составляющее приблизительно от 20 до 500 фунтов на кв. дюйм. 8. Способ по п. 1, в котором топливную массу нагревают приблизительно до 170220°F. Стр.: 1 A 2 0 1 7 1 1 1 0 0 2 (54) АДДИТИВНОЕ ИЗГОТОВЛЕНИЕ С ИСПОЛЬЗОВАНИЕМ ПОДАЧИ ТОПЛИВНОЙ МАССЫ ПОД ДАВЛЕНИЕМ 2 0 1 7 1 1 1 0 0 2 (86) Заявка PCT: R U (43) Дата публикации заявки: 17.10.2018 Бюл. № (72) Автор(ы): ХАСБЭНД Кларенс (US), ВЕНДЛБЕРГЕР Джули (US), БРАШВУД Шон (US), ДОЛЛ Даниэль (US), О'КОННЕР ...

Compression-type composite powder using ethylene vinyl acetate copolymer resin as binder and its manufacturing method

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A method of obtaining a dibasic spherical gunpowder for small arms

Способ получения двухосновного сферического пороха, включающий получение сферических элементов, состоящих из нитроцеллюлозы, нитроглицерина, дифениламина, динитротолуола, централита II, графита и влаги и их флегматизацию в аппарате-флегматизаторе флегматизирующей эмульсией, отличающийся тем, что в аппарат-флегматизатор заливают 2,5-3,0 мас. части воды, по отношению к пороху в пересчете на сухой вес, при турбулентном режиме перемешивания загружают 1 мас. часть сферического пороха и ведут нагрев смеси до температуры 50-55°C, при достижении температуры смеси в реактор-флегматизатор вводят, по отношению к воде, 0,05-0,1 мас. % мездрового клея, по отношению к пороху вводят 4,8-6,0 мас. % централита I и в течение 10-15 минут ведут нагрев смеси до температуры 76-86°C, затем ведут флегматизацию пороха в аппарате-флегматизаторе в течение 40-60 минут и ведут промывку пороха. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 114 195 A (51) МПК C06B 21/00 (2006.01) C06B 25/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015114195, 16.04.2015 Приоритет(ы): (22) Дата подачи заявки: 16.04.2015 (43) Дата публикации заявки: 10.11.2016 Бюл. № 31 R U (57) Формула изобретения Способ получения двухосновного сферического пороха, включающий получение сферических элементов, состоящих из нитроцеллюлозы, нитроглицерина, дифениламина, динитротолуола, централита II, графита и влаги и их флегматизацию в аппаратефлегматизаторе флегматизирующей эмульсией, отличающийся тем, что в аппаратфлегматизатор заливают 2,5-3,0 мас. части воды, по отношению к пороху в пересчете на сухой вес, при турбулентном режиме перемешивания загружают 1 мас. часть сферического пороха и ведут нагрев смеси до температуры 50-55°C, при достижении температуры смеси в реактор-флегматизатор вводят, по отношению к воде, 0,05-0,1 мас. % мездрового клея, по отношению к пороху вводят 4,8-6,0 мас. % централита I и в течение 10-15 минут ведут нагрев смеси до температуры 76-86°C ...

A method of obtaining a monobasic spherical powder for small arms

Способ получения одноосновного сферического пороха, включающий получение сферических элементов, состоящих из нитроцеллюлозы, дифениламина, графита и влаги и их флегматизацию в аппарате-флегматизаторе флегматизирующей эмульсией, отличающийся тем, что в аппарат-флегматизатор заливают 2,5-3,0 мас. ч. воды, по отношению к пороху, в пересчете на сухой вес, при турбулентном режиме перемешивания загружают 1 мас. ч. сферического пороха и ведут нагрев смеси до температуры 75-80°C, при достижении температуры смеси в аппарат-флегматизатор вводят, по отношению к воде, 0,05-0,10 мас. % мездрового клея и по отношению к пороху, при температуре 75-80°C вводят флегматизатор, состоящий из 2,0-4,0 мас. % динитротолуола и 4,5-6,5 мас. % централита 1, в течение 10-15 минут ведут нагрев смеси до температуры 94-98°C, затем ведут флегматизацию пороха в аппарате-флегматизаторе в течение 40-60 минут и ведут промывку пороха. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 114 197 A (51) МПК C06B 21/00 (2006.01) C06B 25/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015114197, 16.04.2015 Приоритет(ы): (22) Дата подачи заявки: 16.04.2015 (43) Дата публикации заявки: 10.11.2016 Бюл. № 31 R U (57) Формула изобретения Способ получения одноосновного сферического пороха, включающий получение сферических элементов, состоящих из нитроцеллюлозы, дифениламина, графита и влаги и их флегматизацию в аппарате-флегматизаторе флегматизирующей эмульсией, отличающийся тем, что в аппарат-флегматизатор заливают 2,5-3,0 мас. ч. воды, по отношению к пороху, в пересчете на сухой вес, при турбулентном режиме перемешивания загружают 1 мас. ч. сферического пороха и ведут нагрев смеси до температуры 75-80°C, при достижении температуры смеси в аппарат-флегматизатор вводят, по отношению к воде, 0,05-0,10 мас. % мездрового клея и по отношению к пороху, при температуре 75-80°C вводят флегматизатор, состоящий из 2,0-4,0 мас. % динитротолуола и 4,5-6,5 мас. % ...

Pyroxylin pellet powder for 5.6 mm sport hunting cartridge of circular ignition

FIELD: weapons and ammunition. SUBSTANCE: invention relates to spherical gunpowder for small arms. Pyroxylin pellet powder for 5.6 mm sport hunting cartridge of circular ignition contains as starting material pyroxylin with nitrogen oxide content 213.0-214.0 ml NO/g and up to 30 wt% recyclable non-process wastes from previous operations, diphenylamine, technical carbon, ethyl acetate and moisture. Powder elements with size of 0.2-0.4 mm and bulk density of 0.62-0.72 kg/dm 3 are phlegmatised from surface with dibutyl phthalate at a depth of 10-20 mcm and graphitised from surface with graphite. EFFECT: invention provides production of pellet powder for 5,6 mm sport hunting cartridge of circular ignition with bullet speed of 485-500 m/s without increase of pressure of powder gases in barrel and flame during firing. 1 cl, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 581 375 C1 (51) МПК C06B 25/20 (2006.01) C06B 21/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014145522/05, 12.11.2014 (24) Дата начала отсчета срока действия патента: 12.11.2014 (45) Опубликовано: 20.04.2016 Бюл. № 11 (73) Патентообладатель(и): Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") (RU) 2 5 8 1 3 7 5 R U (54) СФЕРИЧЕСКИЙ ПИРОКСИЛИНОВЫЙ ПОРОХ ДЛЯ 5,6-ММ СПОРТИВНО-ОХОТНИЧЬЕГО ПАТРОНА КОЛЬЦЕВОГО ВОСПЛАМЕНЕНИЯ (57) Реферат: Изобретение относится к сферическим насыпной плотностью 0,62-0,72 кг/дм3 порохам для стрелкового оружия. Сферический флегматизируют с поверхности дибутилфталатом пироксилиновый порох для 5,6-мм спортивнона глубину 10-20 мкм и графитуют с поверхности охотничьего патрона кольцевого воспламенения графитом. Изобретение обеспечивает получение в качестве исходного сырья содержит пироксилин сферического пороха для 5,6 мм спортивнос содержанием оксида азота 213,0-214,0 мл NO/г охотничьего патрона кольцевого воспламенения и до 30 мас.% ...

Method of phlegmatizing high-densed two-base spherical gunpowder

FIELD: chemistry.SUBSTANCE: proposed method of phlegmatizing high-density two-base spherical gunpowder comprising the preparation of 1.5-3.5% water phlegmatizing emulsion, the preparation of a gunpowder suspension in a reactor with a stirrer, the introduction of the produced phlegmatizing emulsion in the slurry of gunpowder and the treatment of the suspension gunpowder with the phlegmatizing emulsion. At the same time, water is poured into the reactor and heated to a temperature of 80-90°C. Then gunpowder is loaded, and the slurry is mixed for 4-6 mines, the phlegmatizing emulsion at the same temperature in equal quantities is injected by 3-8 techniques with stirring every portion for 10-15 min, and after adding the last portion it is mixed for 30-60 min.EFFECT: gunpowder retains its bulk density after phlegmatization.4 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 670 837 C1 (51) МПК C06B 21/00 (2006.01) C06B 45/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C06B 21/0083 (2006.01); C06B 45/28 (2006.01) (21)(22) Заявка: 2017106866, 01.03.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 25.10.2018 R U 2 6 7 0 8 3 7 C 1 Адрес для переписки: 420033, Респ. Татарстан, г. Казань, ул. Светлая, 1, ФКП "ГосНИИХП" (56) Список документов, цитированных в отчете о поиске: RU 2439043 C1, 10.01.2012. RU 2445299 C2, 20.03.2012. RU 2487107 C1, 10.07.2013. RU 2602904 С2, 20.11.2016. US 2179313 A, 07.11.1939. GB 835560 A, 25.05.1960. GB 1204659 A, 09.09.1970. C 1 (45) Опубликовано: 25.10.2018 Бюл. № 30 2 6 7 0 8 3 7 Приоритет(ы): (22) Дата подачи заявки: 01.03.2017 (73) Патентообладатель(и): Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") (RU) (54) Способ флегматизации высокоплотного двухосновного сферического пороха (57) Реферат: Изобретение относится к производству температуры 80-90°C, затем загружают порох и порохов. ...

Combustion gas recirculation device

본 발명은 고체 추진제 그레인에 관한 것으로, 더욱 상세하게는 보조 추진제와, 절연제가 메인 추제를 코팅하여, 그레인 점화 시 발사관에 인가되는 가스의 압력과 온도를 발사관을 파괴되지 않는 압력과 온도로 조절 가능한 고체 추진제 그레인과, 이의 제조방법 및 이러한 제조방법을 통하여 제조된 고체 추진제 그레인이 사용되는 발사체 추진기관에 관한 것이다. The present invention relates to solid propellant grains, and more particularly, by coating the main propellant with an auxiliary propellant and an insulating material, the pressure and temperature of the gas applied to the canister when the grain is ignited can be adjusted to a pressure and temperature that does not destroy the canister It relates to a solid propellant grain, a method for manufacturing the same, and a projectile propulsion engine using the solid propellant grain manufactured through the manufacturing method.

Reduction of sensitivity of energy explosive crystals by application of coating thereon, crystals of said substances with coating, and energy materials

FIELD: process engineering. SUBSTANCE: invention relates to method of reducing sensitivity of energy explosive crystals by applying coating thereon. Proposed method comprises deposition of metal and/or polymer film on the surface of crystals conducted in fluid, preferably, in supercritical conditions. Note here that metal (metals) and/or polymer (polymers, were pre-dissolved in solvent. EFFECT: reduced sensitivity. 22 cl, 11 dwg, 6 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 484 887 (13) C2 (51) МПК B01J 2/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (72) Автор(ы): МАРРО Кристин (FR), МАРР Самюэль (FR), КАНСЕЛЛЬ Франсуа (FR), ЭМОНЬЕ Сирил (FR) (21)(22) Заявка: 2010128085/05, 18.12.2008 (24) Дата начала отсчета срока действия патента: 18.12.2008 (43) Дата публикации заявки: 27.01.2012 Бюл. № 3 (73) Патентообладатель(и): СНПЕ МАТЕРИО ЭНЕРГЕТИК (FR), ЭРАНКО (FR) 2 4 8 4 8 8 7 (45) Опубликовано: 20.06.2013 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: WO 9919085 A1, 22.04.1999. WO 2004091571 A2, 28.10.2004. DE 19742034 A1, 25.03.1999. SU 220955 A1, 01.01.1968. RU 2267010 C1, 27.12.2005. (86) Заявка PCT: FR 2008/052353 (18.12.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.07.2010 R U 2 4 8 4 8 8 7 (87) Публикация заявки РСТ: WO 2009/081048 (02.07.2009) Адрес для переписки: 191186, Санкт-Петербург, а/я 230, "АРСПАТЕНТ", пат.пов. С.В.Новоселовой (54) СНИЖЕНИЕ ЧУВСТВИТЕЛЬНОСТИ КРИСТАЛЛОВ ВЗРЫВЧАТЫХ ЭНЕРГЕТИЧЕСКИХ ВЕЩЕСТВ ПУТЕМ НАНЕСЕНИЯ НА НИХ ПОКРЫТИЯ, КРИСТАЛЛЫ ТАКИХ ВЕЩЕСТВ С ПОКРЫТИЕМ И ЭНЕРГЕТИЧЕСКИЕ МАТЕРИАЛЫ (57) Реферат: Настоящее изобретение относится к способу снижения чувствительности кристаллов взрывчатого энергетического вещества путем нанесения на них покрытия. Способ включает осаждение, проводимое в жидкости за пределами нормальных значений температуры и давления, предпочтительно в сверхкритических условия. Пленки металла и/или полимерной пленки, на ...

A kind of preparation method of heat-resisting anti-caking ammonium nitrate

本发明涉及一种耐热防结块硝酸铵的制备方法，属于含能材料技术领域。本发明通过氨甲基聚苯乙烯树脂和异氰尿酸三缩水甘油酯结合作为硝酸铵的包覆材料，通过真空结晶造粒制备出耐热防结块硝酸铵，真空结晶是特定条件下的再结晶过程，伴随降温和浓缩两过程发生结晶，在真空条件下，溶液沸点下降，利用溶液本身潜能进行自蒸发，而使溶液浓度提高和温度降低，于是溶液进入过饱和状态，导致迅速析出结晶，结晶生成过程中使溶液过饱和度下降，并伴随释放结晶热，又促使溶液蒸发进行，这样溶液在不断蒸发，不断产生结晶，最终完全利用结晶热蒸发全部水分而得到干燥的硝酸铵；本发明制备的耐热防结块硝酸铵，吸湿率低，热感度高，具有广阔的市场前景。

Exothermically formed aluminide coating

Pyrophorically activated aluminides of iron, nickel and cobalt, or mixtures thereof, are formed as discs or as coatings on substrates such as thin foils. The aluminide can be formed in situ by reacting aluminum powder with the aluminide-forming metal. Mixtures of these reactants can be applied to a substrate as such or suspended in a liquid like water or volatilizable organic liquids. Water is preferably used with a little binder such as an alkali metal silicate. An inhibitor is used to keep the water from reacting with finely-divided aluminum, and those silicates also perform such function. The pyrophoric products can be discharged to decoy heat-seeking missiles, or they can have their pyrophoricity destroyed to make catalysts. Pyrophoric action can be heightened by additives such as boron, and by post treatment with mild acid.

PULVERULENT SUBSTANCE AND PROCESS FOR PRODUCING SUCH A SUBSTANCE.

CRYSTAL COATING DENSIBILIZATION OF EXPLOSIVE ENERGY SUBSTANCES; CRYSTALS SUCH AS COATED SUBSTANCES, ENERGY MATERIALS.

CRYSTAL COATING DENSIBILIZATION OF EXPLOSIVE ENERGY SUBSTANCES; CRYSTALS SUCH AS COATED SUBSTANCES, ENERGY MATERIALS.

La présente invention a pour objet :- un procédé de désensibilisation par enrobage de cristaux d'une substance énergétique explosive : ledit procédé comprend le dépôt, mis en oeuvre au sein d'un fluide, en dehors des conditions normales de température et de pression, de préférence en conditions supercritiques, d'un film métallique et/ou polymère, avantageusement d'un film métallique ou d'un film polymère, à la surface desdits cristaux;- les cristaux d'une substance énergétique explosive enrobés, susceptibles d'être obtenus par ledit procédé ; ainsi que- les matériaux énergétiques renfermant lesdits cristaux enrobés et/ou les cristaux désensibilisés par ledit procédé. The subject of the present invention is: a process for desensitising by coating crystals with an explosive energy substance: said process comprises the deposition, carried out in a fluid, outside the normal conditions of temperature and pressure, preferably under supercritical conditions, a metallic and / or polymeric film, advantageously a metal film or a polymer film, on the surface of said crystals - the crystals of a coated explosive energy substance, which may be obtained by said method; and energetic materials containing said coated crystals and / or crystals desensitized by said method.

Solid propellants - based on liquid comburants absorbed in powdered solids

Polishing nitrocellolose particles - using a gummy soln. contg. suspended metal and metal cpd. particles

Method of 'smoothing' or 'polishing' porous nitrocellulose based explosive powder comprises using a finely divided metal cpd. selected from Cu2O, CuO, Ba2CuO4, WO3, SnO2 and a metal, esp. Zr or Mg in a gummy soln. contg. the two matls. The soln. contains about 6 wt% water w.r.t. the dry powder and about 5 wt% gum w.r.t. the water. The inflammability of the nitrocellulose is increased.

Wax coated tolite - granular explosive safely used in bulk and water resistant

Explosive comprises a core of tolite, opt. contg. dinitrotoluene, coated with a natural or synthetic wax (pref. a mineral hydrocarbon) of mpt. 72 degrees C pref. 60-72 degrees C. The compsn. contains 85-98 wt.% tolite, 0-5% dinitrotoluene and 1-10% wax. Pref. the grain size is 0.5 - 6 mm, where the amt. of particles 1 mmis not 10%, pref. 1%. The solid particles may be coated in water (pref. at 70-74 degrees C) contg. molten wax as a suspension.

Surface treatment process for tubular powders and products obtained

Nano Energetic Materials Composite-based Solid Propellants and Method for Fabricating the Same and Rockets using the Same

The present invention relates to a solid propellant based on nano and high energy material (nEM) composites which has enhanced performance by mixing nEMs with potassium nitrate-sucrose (KNSU) to prepare KNSU/nEMs composite propellants, a preparing method thereof, and a projectile unit using the same. The solid propellant includes: the KNSU composite powder; and nEM composite powder configuring the KNSU/nEM propellant by being mixed with the KNSU composite powder in the solid powder form. The nEM composite powder can raise the combustion temperature and combustion rate of the KNSU propellant when igniting the KNSU/nEM propellant.

Patent FR2309493B1

Process for the production of high power plastic explosives

Packaging for blasting materials

Explosives manufacturing process

Patent FR2135534B1

Explosive mixtures contg metals prepn

Method comprises mixing with agitation crystals of an explosive material with a finely divided metal and a bonding agent, e.g. a phenol or a wax or fatty acid or a copolymer of vinyl acetate and crotonic acid, of vinyl chloride and maleic acid or a polyester, in the liquid state in water with or without a solvent, fixing the bonding agent in solution by cooling and solidification if it has a low m.pt. or by distillation or dilution or by coagulation if it is a latex and recovering a powder comprising explosive material and metal embedded in the bonding agent. The explosive may be hexogene, octogene, penthrite, tetryl, tolite, dinitro -di-amino-benzene, trinitro-triaminobenzene or hexanitrostilbene. The metal may be Al, Mg, Be and W.

Process for the production of progressive molded nitrocellulose powder

Patent FR2135534A1

PROCESS FOR PREPARATION OF DESENSITIZED EXPLOSIVES

L'invention concerne un procédé de préparation d'explosifs désensibilisés. Ce procédé consiste à mettre dans un mélangeur d'une part une pâte constituée d'un liquide contenant un explosif qu'il ne peut pas dissoudre, mais dont il réduit la sensibilité, d'autre part une paraffine dont le point de ramollissement est inférieur à la température à laquelle l'explosif se décompose sans danger ; puis à chauffer en l'agitant le mélange ainsi obtenu jusqu'à ce que le liquide se soit évaporé de la surface de l'explosif et que la paraffine, au moins ramollie, s'y soit déposée de manière à l'enrober; enfin à refroidir le mélange tout en l'agitant. Application aux techniques de fabrication d'explosifs. The invention relates to a process for preparing desensitized explosives. This process consists in putting in a mixer on the one hand a paste consisting of a liquid containing an explosive that it cannot dissolve, but of which it reduces the sensitivity, on the other hand a paraffin whose softening point is lower. at the temperature at which the explosive decomposes without danger; then heating, with stirring, the mixture thus obtained until the liquid has evaporated from the surface of the explosive and the paraffin, at least softened, is deposited thereon so as to coat it; finally to cool the mixture while stirring it. Application to explosives manufacturing techniques.

PULVERULENT SUBSTANCE AND PROCESS FOR PRODUCING SUCH A SUBSTANCE.

L'invention a pour objet une substance pulvérulente, notamment une substance pyrotechnique, caractérisée en ce qu'elle comporte au moins un premier matériau formé de grains (2) enrobés par une couche de liant (3) incorporant des granules (4) d'un second matériau de granulométrie nanométrique.L'invention a également pour objet un procédé permettant de fabriquer une telle substance.

New methods and means of controlling chemical reactions applicable in particular to rocket fuels and resulting new industrial products

Process for fabricating compressible wax-bound granulate of explosive material

Pure crystals of explosive substances are phlegmatised in aqueous wax soap dispersions for the application of wax particles to the surface of the crystals. To obtain mere uniform deposition of the wax particles on the crystals of explosive, a wax soap microdispersion with particle sizes of < 0.1 mu m is used. If aluminium powder is used in addition, the pH of the water phase is stabilised after the precipitation by buffering, in order to prevent an uncontrollable evolution of hydrogen.

PREFORM INHIBITOR BASED ON RUBBER GUM FOR PROPERGOL COMPOSITE BINDER POLYURETHANE

L'INVENTION CONCERNE UN INHIBITEUR PREFORME A BASE DE CAOUTCHOUC GOMME POUR PROPERGOL COMPOSITE A LIANT POLYURETHANNE. CET INHIBITEUR PREFORME COMPREND UNE MATRICE A BASE DE CAOUTCHOUC GOMME ET DES CHARGES. LE CAOUTCHOUC GOMME EST SOIT UN COPOLYMERE ETHYLENE-PROPYLENE DIENE MONOMERE, SOIT UN COPOLYMERE ISOPRENE-ISOBUTYLENE, AVEC RESPECTIVEMENT COMME SYSTEME DE VULCANISATION, DES COMPOSES PEROXYDES ET UN SYSTEME AU SOUFRE. LES PROPERGOLS A LIANT POLYURETHANNE ADHERENT DIRECTEMENT SUR CES INHIBITEURS. L'INVENTION EST NOTAMMENT UTILE DANS LE DOMAINE DES ENGINS AUTOPROPULSES. THE INVENTION RELATES TO A PREFORMED RUBBER-BASED INHIBITOR GUMED FOR COMPOSITE PROPERGOL WITH POLYURETHANE BOND. THIS PREFORMED INHIBITOR INCLUDES A RUBBER BASED DIE AND LOADS. THE GUMED RUBBER IS EITHER AN ETHYLENE-PROPYLENE DIENE MONOMERIC COPOLYMER, OR AN ISOPRENE-ISOBUTYLENE COPOLYMER, WITH RESPECTIVELY AS VULCANIZATION SYSTEM, PEROXIDE COMPOUNDS AND A SULFUR SYSTEM. POLYURETHANE BONDING PROPERGOLS ADHERE DIRECTLY TO THESE INHIBITORS. THE INVENTION IS ESPECIALLY USEFUL IN THE FIELD OF SELF-PROPELLED MACHINES.

Patent FR2433498B1

PROCESS FOR MANUFACTURING TEMPERATURE - RESISTANT FRAGMENTABLE PROPULSIVE CARRIERS, CONSISTENT POWDERS AND CHARGES THUS OBTAINED.

La présente invention se rapporte au domaine des chargements propulsifs pour armes de petit et moyen calibre. L'invention concerne un procédé de fabrication de chargements propulsifs fragmentables qui consiste dans une première étape à enrober des grains de poudre par un mélange de dinitropolystyrène et d'un composé du type nitrate de polyvinyle et/ou acétate de polyvinyle et dans une seconde étape à comprimer entre 100degré C et 140degré C les grains de poudre ainsi obtenus. L'invention concerne également les chargements fragmentables obtenus par le procédé ainsi que les poudres en grains enrobées obtenues à l'issue de la première étape du procédé. Les chargements fragmentables selon l'invention présentent une tenue en température supérieure aux chargements fragmentables traditionnels et conviennent bien pour les munitions sans douille destinées aux armes à grande cadence de tir.

SURFACE TREATMENT PROCESS OF PROPERGOLS FOR ROCKETS

Explosives upgrades

Patent RU2017111002A3

ВУ” 2017111002” АЗ Дата публикации: 13.03.2019 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017111002/05(019512) 10.09.2015 РСТД52015/049327 10.09.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 62/051,227 16.09.2014 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) АДДИТИВНОЕ ИЗГОТОВЛЕНИЕ С ИСПОЛЬЗОВАНИЕМ ПОДАЧИ ТОПЛИВНОИ МАССЫ ПОД ДАВЛЕНИЕМ Заявитель: АЭРОДЖЕТ РОКЕТДАИН, ИНК., 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) В29С 64/165 (2017.01) ВЗЗУ 10/00 (2015.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) В29С64/00 - В29С 64/40, ВЗЗУ 19/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РЕРАТБ пе, ЕАРАТТУ, Езрасепе, боозе, Соое Рмепб, ]-Р]а Рас РАТЕМТЗСОРЕ, Ра еагсй, КОРТО, ИЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где ...

Activated metal and method of preparing

Metals are made pyrophoric by diffusing aluminum or zinc into them and then leaching it out, or by reacting with aluminum and then leaching aluminum out. Powdered aluminum and powdered nickel, iron or cobalt, can thus be carried on an elongated support web and reacted by heating for a few seconds to a few minutes, after which leaching will provide elongated pyrophoric foil suitable for decoying heat-seeking missile.

Desensitisation by coating of crystals of explosive energetic substances, coated crystals of such substances, and energetic materials

Freestanding reactive multilayer foils

根据本发明，通过下述步骤来生产出一种反应性多层金属薄片：提供一个由反应性层构成的组合体(叠层体或者多层)；将该组合体插入到一个外套中；使得带有外套的组合体发生变形，来减少其横剖面积；将带有外套的组合体压扁平成一个薄板；并且然后将外套去除。最好，使所述组合体在插入到所述外套中之前被卷绕成一个圆柱体，并且在变形过程中将带有外套的组合体冷却至一个低于100℃的温度。所制得的多层金属薄片用作在结合、点火或者推进操作中使用的独立式反应金属薄片是有益的。

Process for the manufacture of components of dual-composition propellent powder containing nitrocellulose and powder components thus obtained

Process for the manufacture of components of dual-composition propellent powder containing nitrocellulose, in which the surface composition of the component is different from the composition at the core of the component. According to a preferred embodiment of the invention a component 5 made from a first propellent composition is wound onto a feed reel 4. This component 5 is caused to pass through a coating device 6 to be coated with a coating composition before moving into a sheathing enclosure 3. A second propellent composition placed in an extruder 1 fills the sheathing enclosure 3 where it is applied at an adjustable thickness around the component 5, which emerges in the form of a dual-composition component 7. The linear burning speed of the first composition is preferably higher than the linear burning speed of the second composition. The invention also relates to the dual-composition powder components thus obtained.

Encapsulation of particulate metal hydride in solid propellants

Al/PVDF/PDA/Fe2O3Three-layer core-shell structure thermite and preparation method thereof

本发明公开了一种Al/PVDF/PDA/Fe 2 O 3 三层核壳结构铝热剂及其制备方法，首先将微米级铝粉与N,N‑二甲基甲酰胺、酸溶液混合后，室温下搅拌30～60min，得到铝粉分散液；然后将PVDF溶解于N,N‑二甲基甲酰胺中，得到PVDF溶液；将PVDF溶液加入铝粉分散液中，在55～65℃反应3～6h，得到的Al/PVDF材料；将Al/PVDF材料、DOPA加入Tris‑HCl缓冲溶液中，调节pH值至8～12，室温搅拌8～24h，得到Al/PVDF/PDA材料；最后将Al/PVDF/PDA材料与金属铁盐混合，室温下搅拌反应20～28h后，加入碱性溶液混合，搅拌反应3～8h，得到Al/PVDF/PDA/Fe 2 O 3 材料。本发明方法制备的三层核壳结构的铝热剂能显著提高铝粉的热反应性能，提高其能量释放效率和速率。

Propellant grain assembly for a gas generator

A gas generator for a long range missile is driven by a solid propellant in assembly which includes a cylindrical inhibitor, a forward closure assembly that is attached to one end of the inhibitor and a propellant grain that is cast into the cylindrical cavity formed by the interior surface of the cylindrical inhibitor. Between the grain and inhibitor and between the grain and forward closure assembly is an adhesive bonding system for attaching the grain to the inhibitor and forward closure assembly. The exposed or aft end of the grain is the initial burning surface and includes a plurality of annular concentric grooves and a configuration that provides optimum burn progression that results in a complete high pressure burn. The external surface of the inhibitor is machined so that the solid propellant grain assembly may be readily inserted and removed from the gas generator.

Use of a solid for the production of a propellant powder

For production of a propellant charge powder, especially for medium and large calibers, in a process in which the solid is incorporated together with a liquid in a mixing and drying process into the channels of a granular green material and compacted therein to form a plug, the solid, under otherwise identical process conditions, is set within a setting range of >0-0.5% by weight based on the weight of the granular green material. For more significant lowering of the maximum pressure within an upper temperature range and for more significant raising of the maximum pressure within a lower temperature range of the application temperature range, an increased amount of solid is used. The solid is a substance whose melting point is at least 10°C, especially 20°C, above a maximum use temperature of the propellant charge powder and which is inert toward the granular green material. Since the plug consists virtually exclusively of inert material, a high ballistic stability is achieved.

PROCESS FOR THE PREPARATION OF A DESENSITIZED EXPLOSIVE COMPOUND

Procédé de préparation d'explosifs désensibilisés. Ce procédé, qui a pour but de rendre moins sensible à la détonation l'explosif considéré, consiste, après avoir préparé une pâte à partir de cet explosif et d'un agent liquide incapable de dissoudre aussi bien ce dernier que les substances paraffineuses destinées à le désensibiliser, à y ajouter, en agitant le mélange, un agent mouillant et des particules paraffineuses dont le diamètre moyen est inférieur, à 20 microns, puis à tamiser l'explosif ainsi traité. Application à la préparation d'explosifs. Process for preparing desensitized explosives. This process, which aims to make the explosive considered less sensitive to the detonation, consists, after having prepared a paste from this explosive and a liquid agent incapable of dissolving both the latter and the paraffinous substances intended for to desensitize it, to add thereto, by stirring the mixture, a wetting agent and wax particles whose average diameter is less than 20 microns, then to sieve the explosive thus treated. Application to the preparation of explosives.

Method of manufacturing a solid fuel charge which generates gas, in particular for a rocket engine, or an engine starter

A kind of emulsification ANFO explosives prill and its continuous production technology

本发明公开了一种乳化粒状铵油炸药连续化生产工艺，制备过程如下：(1)涂覆剂的连续化制备；(2)自动掺合；(3)连续化涂覆与混合；(4)自动包装、入库。本发明的有益效果是：本发明的配方组分简单，原料来源广泛，生产成本低廉，在乳化粒状铵油炸药连续化生产过程中，开发适应乳化粒状铵油炸药的专用乳胶配方及工艺，成果所解决的关键技术：集成开发国内效率高、自动化程度高、本质安全性能好的先进设备及相配套的系统,实际在于解决柴油喷淋系统与多孔硝酸铵加料系统以及乳胶基质自动加料系统等三部分的无缝隙揉合，避免了其中某一物料滞后加入等不均匀现象。

Method for preparing super-hydrophobic oxidant based on lotus leaf effect

本发明公开了一种基于荷叶效应制备超疏水氧化剂的方法，包括：将低表面能材料加入到溶剂中，然后加入氧化剂颗粒，搅拌、过滤、干燥；将低表面能材料修饰后的氧化剂颗粒加入到金属盐溶液中，待其充分反应后过滤、干燥，得到超疏水氧化剂颗粒。本发明利用仿生超疏水原理对易吸湿氧化剂进行表面处理，使其吸湿率明显降低，特别是在温度为60℃、相对湿度为80％和测试时间为400小时条件下，ADN的吸湿率降低了53％左右，可以在空气中放置6个月仍然不出现团聚现象，所采用的包覆材料在实现氧化剂防吸湿性能的同时，其中的金属盐能显著降低氧化剂的热分解温度，这对氧化剂在高燃速固体推进剂中的应用非常有意义。

LIGHTING INSULATION, PROCEDURE FOR THE PREPARATION OF A PYROTECHNICAL LIGHTING PROVIDED WITH THE INSULATION, AND LIGHTING PROCESSED BY THE PROCEDURE.

Phase-stabilized ammonium nitrate explosives

Phase-stabilized ammonium nitrate (PSAN) explosives containing PSAN prills and a fuel are provided. The PSAN prills contain ammonium nitrate, a potassium salt, and an inorganic porosity enhancing agent.

Process for the production of an inhibited double-base propellant

Supercritical fluid aided coating of particulate material

A method for preparing coatings of thin films onto solid particle has been achieved by in-situ simultaneous nucleation and deposition of dissolved material out of a supercritical fluid, resultant film formation on the solid particles suspended in the supercritical fluid, and subsequent thermal conditioning of the coating on the particles. The coating method involves an enclosed system that provides: 1) for suspension of the solid particles to be coated; 2) for dissolution of the coating material in the supercritical fluid solvent; 3) for temperature or pressure swing operations causing film deposition/coating of the suspended solid particles and; 4) additional chemical addition and/or thermal cycles providing for any additional reactions required (such as polymerization).

Patent FR1582964A

One-piece powder propellant charge, its manufacture and use

Phase Stabilized Ammonium Nitrate Explosives

PSAN 프릴(PSAN prill) 및 연료를 함유하는 상 안정화 질산암모늄(PSAN: Phase-stabilized ammonium nitrate) 폭발물이 제공된다. PSAN 프릴은 질산암모늄, 칼륨염, 및 무기 다공성 강화제를 함유한다.

Explosives

543,298. Explosives. WILLIAMS, W. P. (Western Cartridge Co.). July 11, 1940, No. 11578. [Class 9 (ii)] Propellant powder grains are produced by the autogenous adhesion of fine particles of gelatinized nitrocellulose dust which is effected by agitating and heating the particles in a water slurry to which is added, as by spraying, a solvent or plasticizer not miscible with the water. Volatile solvent is subsequently removed by evaporation ; but, non-volatile, explosive plasticizers such as nitroglycerine, dinitrotoluene, or trinitrotoluene may be used, in which case the grains are submitted to a centrifugal or wring- ing treatment. The degree of agglomeration as well as the dimensions and physical characteristics of the grains may be controlled by the extent of agitation and emulsification. Before final drying, the grains may be given a coating, comprising, e.g. nitrocellulose, to modify the burning characteristic, and to render the powder non-hydroscopic. A deterrent such as dibutylphthalate may be embodied in the coating. Partially deteriorated cannon powder may be submitted to the process by first reducing to the required dust form and then treating in a slurry with a solvent such as ethyl acetate and suitable deterrents. A neutralizer, such as calcium carbonate, may also be added. Specification 5865/93, [Class 9], is referred to.

High-energy mixed explosive containing titanium powder and preparation method of high-energy mixed explosive

本发明公开了一种炸药，更具体地说含金属的高能炸药，尤其涉及一种使用钛粉作为添加剂制备的高能混合炸药及其制备方法。按重量份数主要由下述组分组成：钛粉10—25份、包覆剂2‑8份、基体炸药72—82份。钛的热稳定性很好，熔点为1660±10℃，沸点为3287℃。金属钛在高温环境中的还原能力极强，能与氧、碳、氮以及其他许多元素化合，还能从部分金属氧化物(比如氧化铝)中夺取氧。炸药爆轰是超高温高压过程，而包覆后的钛粉是高能燃料，在炸药爆轰过程中主要参与C‑J面之后的燃烧反应，与爆轰产物发生二次反应会放出大量的热量，可为冲击波提供后续能量，延缓冲击波的衰减，从而使炸药爆炸性能显著提高。

COMPOSITION OF PROPULSIVE CHARGE FOR AN AMMUNITION OF INCREASED EFFICIENCY AND METHOD OF MANUFACTURING THIS CHARGE

METHOD FOR MANUFACTURING FRAGMENTABLE PROPULSIVE LOADS RESISTANT TO TEMPERATURE, CONSTITUENT POWDERS AND LOADS THUS OBTAINED.

A kind of method that blasting explosive granules bonding is carried out using high density suspensions

本发明公开了一种利用高密度悬浮液进行炸药颗粒粘接的方法，包括：步骤一、将单质炸药颗粒和含氟高聚物溶液在搅拌情况下在全氟三丁胺中进行分散混合；步骤二、利用含氟高聚物溶液中溶剂的挥发使得含氟高聚物在单质炸药颗粒表面形成一层包覆薄膜；步骤三、使用烘干方式将包覆有含氟高聚物的造型粉表面的悬浮液残留除去。本发明采用的高密度悬浮液能够在较低搅拌速度下实现单质炸药颗粒在包覆过程中的良好分散混合，避免了使用水作为悬浮液时为了保证分散均匀采用高速搅拌导致的颗粒碰撞频率过高导致的颗粒破碎以及形貌变化等不良后果。

Heat-stable moulded composite explosives and production thereof

ABSTRACT OF THE DISCLOSURE The specification describes heat-stable pressure-moulded composite explosives which comprise at least one crystalline explosive having a high rate of detonation and, as a synthetic binder therefor, a cross-linked silicone resin. These composite explosives are produced by coating the crystalline explosive in the presence of water with a thermosetting polysiloxane prepolymer, then drying and cross-linking the moulding powder obtained, and finally cold-compressing the cross-linked moulding powder to form a shaped composite explosive. These explosives have exceptional mechanical strength at elevated temperatures which enables them to be used in all types of explosive charge. The process used provides increased safety and results in a lower cost price.

Bead milled spray dried nano-explosive

A method for manufacturing nano-sized insensitive high explosive molding powder usable as a booster HE is provided herein. The method preferably involving the steps of dissolving a binder in a liquid and suspending crystalline high explosive to said liquid, grinding that suspension in a bead mill until the crystalline high explosive is nano-sized, and precipitating the binder and crystalline high explosive using a spray dryer to produce granules containing nano-sized crystalline high explosive. The liquid may be water or an organic solvent so long as the binder is highly soluble in the liquid and the crystalline high explosive is generally insoluble in the liquid. A fatty alcohol, water defoaming/dispersant/surfactant agent can be added to the dissolved binder/suspended crystalline high explosive, to aid in the manufacturability.

Metal interlayer adhesive technique

A rocket motor is described in which a thin layer of metallic foil or the ke is used between a silicone rubber insulator and an isocyanate cured, hydroxy terminated polybutadiene bound propellant grain to prevent migration of isocyanate into the silicone rubber liner.

UNIT LOADING OF AGGLOMERATED POWDER

Process for the preparation of conductive primers

Composite reactive multilayer foil

提供了可反应的薄片及它们的用途，用作点火、连接和推进时的局部热源。一种改进的可反应的薄片(14)最好具有多层薄片结构，该结构由从能以发热及自扩散反应方式相互反应的材料中选出的交替的层(16，18)构成。在反应时，这些薄片提供高的局部热量，这些热量可用于诸如连接各层，或直接将松散材料连在一起。这种薄片热源可在各种环境(例如，空气，真空，水等)的室温下产生迅速的连接。如果使用连接材料，该薄片反应将提供足够的热量来熔化连接材料。如果不使用连接材料，该薄片反应将热量直接提供到至少两种松散材料上，熔化每种的一部分，在冷却时形成牢固的连接。此外，薄片(14)还可设计成具有开口，该开口允许使连接(或松散)材料穿过薄片以增加连接牢度。

Process for the microencapsulation of particles from moisture-sensitive fuels and explosives as well as microencapsulated particles from such fuels and explosives

Verfahren zum Mikroverkapseln von Partikeln aus feuchtigkeitsempfindlichen Treib- und Explosivstoffen sowie Oxidatoren, insbesondere Ammoniumdinitramid (ADN) und/oder Ammoniumnitrat (AN), dadurch gekennzeichnet, daß (a) die Partikel durch Einbringen in eine Schmelze wenigstens eines nativen oder synthetischen Wachses oder einer Mischung hiervon unter vollständiger Benetzung der Partikel bei einer Temperatur unterhalb ihres Schmelzpunktes unter Ausschluß von Feuchtigkeit mit einer dünnen Schicht aus dem Wachs beschichtet werden, (b) die Schmelze des Wachses mit den vollständig benetzten Partikeln abgekühlt und vor ihrem Erstarren ein Adsorbens zur Adsorption des überschüssigen Wachses zugesetzt wird und (c) die derart beschichteten Partikel mit einer Aminoharzschicht verkapselt werden.

Explosive devices

Process for coating explosives and resulting new industrial product

Ignition-sensitive electrical detonators with a weak detonative output, process for their production and their use

A composite reactive multilayer foils

반응성 포일과 그 용도들은, 예를 들어, 점화, 결합 및 추진시에 국부적인 열원으로써 제공된다. 개선된 반응성 포일(14)은 양호하게는, 발열 및 자가-전달 반응에서 서로 반응하는 재료들로부터 선택된 교호층(16,18)으로 구성된 독립 멀티층 포일 구조체이다. 반응시에, 상기 포일은 예를 들어, 결합층들에 적용되거나 또는 결합되는 벌크 재료들에 직접 적용될 수 있는 매우 국부적인 열 에너지를 공급한다. 이 포일 열원은 주위환경(즉, 공기, 진공, 물 등)에서 실질적으로 실온에서 신속한 접착이 이루어지게 할 수 있다. 만약, 결합 재료가 사용된다면, 포일 반응은 결합 재료를 용융시키기에 충분한 열을 공급한다. 만약, 결합 재료가 사용되지 않는다면, 포일 반응은 적어도 두 벌크 재료들에 직접 열을 공급하여, 각 벌크 부분을 용융시키고, 상기 벌크 부분은 냉각시에 강한 접착을 형성한다. 또한, 포일(14)은 이 포일을 통한 결합 재료의 압출이 접착을 개선시킬 수 있는 개방부들과 함께 설계될 수 있다. Reactive foils and their uses are provided as a local heat source, for example in ignition, bonding and propulsion. The improved reactive foil 14 is preferably an independent multi-layer foil structure composed of alternating layers 16, 18 selected from materials that react with each other in exothermic and self-transfer reactions. In reaction, the foil supplies very local thermal energy, which can be applied, for example, directly to the bulk materials applied or bonded to the bonding layers. This foil heat source can allow for rapid adhesion at substantially room temperature in the environment (ie air, vacuum, water, etc.). If a binding material is used, the foil reaction supplies enough heat to melt the binding material. If no binding material is used, the foil reaction supplies heat directly to at least two bulk materials, melting each bulk portion, which forms a strong bond upon cooling. The foil 14 can also be designed with openings in which extrusion of the bonding material through the foil can improve adhesion. 포일, 결합 재료, 접착방법, 열원, 교호층 Foil, bonding material, bonding method, heat source, alternating layer

Heat-stable molded composite explosives and production

The specification describes heat-stable pressure-moulded composite explosives which comprise at least one crystalline explosive having a high rate of detonation and, as a synthetic binder therefor, a cross-linked silicone resin. These composite explosives are produced by coating the crystalline explosive in the presence of water with a thermosetting polysiloxane prepolymer, then drying and cross-linking the moulding powder obtained, and finally cold-compressing the cross-linked moulding powder to form a shaped composite explosive.

Igniter tube for a propellant charge

The invention relates to an igniter tube consisting of a fuel tube, on the inner face of which an ignition charge is laid along the length of said fuel tube. The invention also relates to a method for producing the igniter tube.

A kind of boron magnesium prealloy powder body material and preparation method thereof

本发明涉及一种硼镁预合金粉体材料的制备方法，属于金属基可燃物领域。所述材料为全包覆核壳结构，核为B，外壳为MgO和MgB 2 ，无定型MgO和晶态MgB 2 不均匀分布。其制备方法为：镁粉和硼粉经过前处理后，进行机械预混，得到混合粉末，再进行高温均匀预混，出炉，在惰性气体保护下粉碎研磨后再次放入炉体内；抽真空后充入惰性气体，进行两步烧结；得到的预合金粉块在惰性气体保护下机械粉碎研磨，得到一种硼镁预合金粉体材料。所述方法工艺简单，成本不高，利用镁粉在加热过程中还原硼粉中的氧化硼提高有效硼含量，在硼粒子间的界面上形成部分镁硼合金，以减少硼的团聚，增大硼粒子在氧化过程中的受热面积，提高反应度。

Unit charges of propellant powder

ABSTRACT OF THE DISCLOSURE A unit charge of propellant powder, particularly suitable for ammunition for small and medium calibre arms, consisting of grains of nitrocellulose powder agglomerated together by means of a gelatinising plasticiser for nitro-cellulose, which plasticiser is liquid at a temperature of up to 80°C and is present in an amount not exceeding 7% based on the weight of the nitrocellulose. The charge has virtually the same potential energy as loose nitrocellulose powder and it also fragments and burns instantly, like a loose powder.

Use of a solid for the production of a propellant powder

For production of a propellant charge powder, especially for medium and large calibers, in a process in which the solid is incorporated together with a liquid in a mixing and drying process into the channels of a granular green material and compacted therein to form a plug, the solid, under otherwise identical process conditions, is set within a setting range of >0-0.5% by weight based on the weight of the granular green material. For more significant lowering of the maximum pressure within an upper temperature range and for more significant raising of the maximum pressure within a lower temperature range of the application temperature range, an increased amount of solid is used. The solid is a substance whose melting point is at least 10°C, especially 20°C, above a maximum use temperature of the propellant charge powder and which is inert toward the granular green material. Since the plug consists virtually exclusively of inert material, a high ballistic stability is achieved.