EP0646762B1 - Eléments de conteneurs combustibles pour munitions d'artillerie, procédé de fabrication et utilisation de tels éléments - Google Patents
Eléments de conteneurs combustibles pour munitions d'artillerie, procédé de fabrication et utilisation de tels éléments Download PDFInfo
- Publication number
- EP0646762B1 EP0646762B1 EP94402205A EP94402205A EP0646762B1 EP 0646762 B1 EP0646762 B1 EP 0646762B1 EP 94402205 A EP94402205 A EP 94402205A EP 94402205 A EP94402205 A EP 94402205A EP 0646762 B1 EP0646762 B1 EP 0646762B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- central
- combustible
- neck
- wall
- elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000843 powder Substances 0.000 claims description 35
- 239000003380 propellant Substances 0.000 claims description 22
- 238000009950 felting Methods 0.000 claims description 20
- 230000000295 complement effect Effects 0.000 claims description 11
- 239000000020 Nitrocellulose Substances 0.000 claims description 10
- 229920001220 nitrocellulos Polymers 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 239000007900 aqueous suspension Substances 0.000 claims description 7
- 229920003043 Cellulose fiber Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 229920001004 polyvinyl nitrate Polymers 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 3
- 239000000446 fuel Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001141 propulsive effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 208000031968 Cadaver Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 1
- 239000000006 Nitroglycerin Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229960003711 glyceryl trinitrate Drugs 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/38—Separately-loaded propellant charges, e.g. cartridge bags
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/18—Caseless ammunition; Cartridges having combustible cases
- F42B5/188—Manufacturing processes therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/18—Caseless ammunition; Cartridges having combustible cases
- F42B5/192—Cartridge cases characterised by the material of the casing wall
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S102/00—Ammunition and explosives
- Y10S102/70—Combustilbe cartridge
Definitions
- the present invention relates to the field of artillery ammunition. More specifically the invention relates to fuel container components allowing to easily constitute loads modular fully combustible for such ammunition.
- the invention also relates to a method obtaining such elements by a technique of felting.
- Such loads are constituted by modules identical composed by a combustible case cylindrical with a central channel and filled with a loading of propellant powder.
- the weapon server determines the number of modules to use and possibly their nature.
- the fuel box includes a body and a bottom, a cover and a central tube. These different elements are made from combustible materials in plates by thermoforming and are glued together other.
- a first drawback presented by this solution lies in the correct positioning of different components of the housing and in particular in the correct positioning of the central tube intended for ensure the transmission of ignition from a box to the other.
- a second drawback lies in the implementation work of combustible materials to undergo a thermoforming operation.
- This solution also consists in carrying out the fuel box from two elements cylindrical hollow fuel closed each to one of their ends by a flat face having a central hole assembled and glued one against the other.
- the central channel is a hollow tube of propellant powder agglomerated building on the inside of the two faces planes and the propellant charge is a block cylindrical hollow agglomerated propellant powder.
- This solution has the disadvantage of being limited to propellant charges in agglomerated powder and by elsewhere also has the disadvantage of correct positioning of the central tube.
- the object of the present invention is precisely to offer modular fuel containers whose housings do not have the aforementioned drawbacks.
- the invention therefore relates to container elements fuel for artillery ammunition obtained by felting on a liquid permeable mold, aqueous suspension consisting mainly of nitrocellulose fibers, cellulose fibers and by a resin, so as to obtain a draft of the said element which is then compacted and hot cooked, according to the features of independent claim 1.
- the said plane part of revolution is bordered by a cylindrical outer wall located on the same side of the said flat part as said central pass.
- said outer wall has a height substantially equal to the height of said central neck.
- a additional ignition tube introduced into the said central channel thus constituted a additional ignition tube.
- this ignition tube is obtained by agglomeration of grains propellant powder coated with a binder based on polyvinyl nitrate.
- the invention also relates to a method of fabrication by felting of a blank of elements according to the invention characterized in that one immerses in a aqueous suspension consisting mainly of nitrocellulose fibers, cellulose fibers and by a resin, a mold having a cavity of revolution consisting of an outer shell and a bottom whose surface is flat and which has a column central, said bottom and said column at least being permeable to liquids and kept at a distance internal walls of the mold so as to form a empty space and in that one exerts an aspiration to inside said empty space.
- a aqueous suspension consisting mainly of nitrocellulose fibers, cellulose fibers and by a resin
- a mold having a cavity of revolution consisting of an outer shell and a bottom whose surface is flat and which has a column central, said bottom and said column at least being permeable to liquids and kept at a distance internal walls of the mold so as to form a empty space and in that one exerts an aspiration to inside said empty space.
- the said outer shell is, at least partially, permeable to liquids and delimits an empty space in which we can create a vacuum.
- the invention thus makes it possible, from only two elements obtained by felting, to constitute a complete fuel module case for load artillery including the central channel, incorporates the said elements, does not require any particular positioning nor any gluing operation.
- the box can also be filled with a load in the form of block or bundle.
- Figure 1 shows, in partial view uprooted, a modular combustible container according to the invention.
- FIG. 2 representing a body of housing
- Figure 3 a housing cover.
- Figure 4 shows, in sectional view the configuration of the two complementary elements constituting a housing and shown in Figures 2 and 3.
- FIG. 5 shows, in section, another configuration of two additional elements according to the invention.
- Figure 6 shows, seen in perspective, a mold for manufacturing by felting an element blank according to the invention.
- Figure 7 shows, seen in section, the mold of the Figure 6 immersed in the felting suspension.
- FIG. 8 represents, in perspective view, the central part of the mold shown in Figures 6 and 7.
- Figure 9 shows, in perspective view, one of the two external shells of the mold shown in Figures 6 and 7.
- Figure 10 is a magnifying glass of part L of the figure 7.
- the invention relates to container elements fuel for artillery ammunition. We represented in Figures 2 and 4 such an element 1 according to the invention.
- such an element 1 has at least one flat part 2 of revolution having a central opening 3 bordered by a central neck hollow 4.
- the said central orifice 3 is an orifice circular and the said hollow central neck 4 is a neck cylindrical.
- said plane part 2 of revolution is bordered on its entire periphery by an outer wall cylindrical 5 located on the same side of said part plane 2 than the said central pass 4.
- said wall exterior 5 has a height substantially equal to the height of said central neck 4.
- Such an element 1 is intended to constitute the body of a combustible container modular, the outer wall 5 constituting the wall outside of the container housing, the flat part 2 constituting the bottom of the case and the hollow neck4 constituting the ignition tube, the wall 5, the part plane 2 and the hollow neck 4 being in one piece.
- FIGS. 3 and 4 show an element 6 complementary to the previous one.
- This element 6 consists of a flat part 7 of revolution with a circular central opening 8 bordered by a hollow cylindrical neck 9.
- the flat part 7 of element 6 is bordered on its entire periphery by an outer cylindrical wall 10 located on the same side that the neck 9 and having a height substantially equal to that of the pass 9.
- the outside diameter of the neck 9 of the element 6 is equal to the inside diameter of the neck 4 of the element 1 while the outside diameter of the outside wall 10 of element 6 is equal to the inside diameter of the outer wall 5 of the element 1. It is thus possible to penetrate the neck 9 of the element 6 in the neck 4 of element 1 so that the end 11 of the neck 4 comes into abutment against the inner surface of the flat part 7 of the element 6. Under these conditions the outer surface of the wall 10 of the element 6 is found in contact with the inner surface of the wall 5 of element 1.
- the housing body 1 and the element 6 which plays the role of cover define a housing cylindrical closed at each of its ends by a flat face with a central opening, both central openings being connected continuously by a continuous central channel formed by the neck 4 of element 1 in which the neck 9 of element 6 is fitted. It is in this sense that the two elements 1 and 6 are said to be complementary in the context of this invention.
- Figures 2, 3 and 4 show a container fuel obtained from two elements complementary 1 and 6 in which the central neck and the outer wall have substantially the same height. Of such cases can be easily secured each other, for example by using a ring or an adhesive material.
- the invention however also relates to combustible container elements in which the wall exterior has a height different from the height of the said central collar.
- combustible container case consisting of two additional elements 12 and 13.
- Element 12 has a flat part 14 having a circular central orifice 15 bordered by a neck 16 of height much lower than that of the wall outside 17 which borders the flat part 14.
- Element 13 on the contrary has a flat part 18 with a circular central opening 19 bordered by a neck 20 of height much greater than that of the wall exterior 21 which borders said flat part 18.
- the inside diameter of the neck 20 is equal to outside diameter of the neck 16 while the diameter outside of wall 21 is equal to inside diameter of the wall 17 so that the element 13 can fit into element 12 as shown in figure 5.
- the height of the outer wall 17 of element 12 is greater than the height of the neck 20 of the element 13, so that the wall 17 extends to the beyond the flat part 18 of the element 13 when the two elements are joined together, defining thus a ring 22 digs beyond the flat part 18.
- Elements of combustible containers according to the invention are obtained, as will be explained in details in the following description, by felting on liquid permeable mold of a suspension aqueous mainly consisting of fibers of nitrocellulose, cellulose fibers and by a resin, so as to obtain a draft of said element, blank which is then compacted and hot cooked.
- the aqueous suspension may also contain additives to solve the reduction problems of erosion or reduction of oil migration nitrated.
- the container elements fuels once completed, can receive various types of protective coatings or varnishes external agents.
- FIG 1 a container modular fuel 24 obtained from the elements 1 and 6 shown in Figures 2, 3 and 4.
- This container 24 was obtained by filling the body case 1 with a propellant powder 25.
- a propellant charge consisting of powder agglomerated or by a bundle of powder strands linked between them no particular problem whatever the configuration of the element.
- sprigs of powder not linked together such as divided strands as described in FR-A-2679992, or with powder grains in bulk
- the use of a housing body as shown in Figure 2 turns out particularly interesting. It is in this sense that additional elements 1 and 6 shown in the figures 2, 3 and 4 are the preferred elements of the invention.
- the housing body 1 When the housing body 1 is filled with powder, and it should be observed that it can easily be completely filled, insert the cover 6 as explained more high. In some cases we will coat the exterior surface of the neck 9 and the outer surface of the wall 10 of the cover 6 with a little combustible glue for improve the adhesion of the cover to the housing body. In other cases we may prefer mechanical blocking.
- a modular fuel container is thus obtained having a central channel defined essentially by the neck 4 of the housing body 1. Before filling the housing can be drilled in different places to facilitate ignition or combustion.
- a hollow central channel is imperative to ensure good transmission of the ignition of a module to another.
- a complementary hollow ignition tube 26 in the central channel thus constituted, a complementary hollow ignition tube 26.
- this tube additional ignition fuel 26 is supported by the upper end 27 of the neck 9 of the cover 6 and is maintained in contact with the inner surface of the neck 4 of the housing body 1 with a little combustible glue.
- the additional ignition tube 26 can be formed in one piece or in several sections laid end to end end.
- the ignition tube 26 is obtained by agglomeration under grain pressure and at a temperature close to 100 ° C. propellant powder coated with a binder based on polyvinyl nitrate according to the techniques described in French patents 2,436,766 and 2,658,505 or in their American correspondents 4,326,901 and 5,174,837.
- a combustible paper reinforcement tube can also be introduced into the ignition tube 26.
- the said propellant powder used to form the tube 26 can advantageously be a powder based on nitrocellulose, porous or non-porous, containing possibly additives. The invention thus makes it possible to get rid of any presence of black powder which reduces the risk of corrosion.
- the tube 26 can also be obtained by agglomeration of powders ignition system for low powders vulnerability.
- the invention also relates to a method of manufacturing by felting of container elements fuel according to the invention and in particular elements as shown in Figure 2 which have at the both a long neck and an outer wall very long.
- Traditional techniques of felting according to which solid deposition is carried out on the outside surface of a mold immersed in a suspension do not allow to obtain cylindrical hollow parts having in their center a central neck of great length which is itself hollow, suction in the central mold cavity corresponding to the said collar allowing only to obtain a full neck, which is not sought in the context of the invention.
- an element blank according to the invention it is immersed in the suspension of felting a mold having a cavity of revolution consisting of an outer shell and a bottom whose surface is flat, the said bottom having a central column. Said bottom and said column at less are permeable to liquids and suction is exerted inside the mold.
- the felting suspension is preferably an aqueous suspension consisting mainly of nitrocellulose fibers, cellulose fibers and by a resin possibly in the presence of a stabilizer like diphenylamine.
- aqueous suspension consisting mainly of nitrocellulose fibers, cellulose fibers and by a resin possibly in the presence of a stabilizer like diphenylamine.
- Such suspension is by example described in patent FR 2,555,302 or in its correspondent US 4 649 827.
- FIGS. 6 to 10 show a mold 28 according to the invention.
- the mold 28 consists of a central part 29 and an outer part consisting of two shells semi-cylindrical 30 and 31.
- the central part 29 is connected by a flexible pipe 32 to a vacuum pump while the outer shells 30 and 31 are connected to a vacuum pump by flexible pipes 33 and 34.
- a loop loop 35 holds the shells 30 and 31 pressed against each other.
- the central part 29 is consists of a cylindrical head 36 crossed by a hollow pipe 37 connected to the pipe 32.
- the head 36 has a groove on its cylindrical face circular 38.
- On the lower flat face of the head 36 is fixed by welding a filtration grid permeable to liquids with a circular rim flat 39 welded to the head 36, a first surface vertical cylindrical 40, an annular flat face 41 finished in its central part by a column cylindrical 42 closed by a bottom 43, thus providing a empty space 44 between the head 36 and the grid filtration.
- the filtration grid constituting the elements 39, 40, 41 42 and 43 is advantageously constituted by a perforated copper grid covered by a electroformed nickel filter.
- the shell 30 consists of a solid semi-cylindrical wall 45 crossed by a hollow pipe 46 connected to the pipe 33.
- the interior surface of the wall 45 has a rim 47 intended to penetrate into the groove 38 of the head 36 to ensure the positioning of the shell 30 relative to head 36.
- the inner surface of the wall 45 has a flat 48 having a vertical surface 49 and intended for slide under the head 36, the vertical surface 49 of the flat being the same height as the vertical surface 40 of the grid carried by the head 36 and coming into abutment against the latter.
- a second flat 50 having a vertical surface 51, the depth radial of flat 50 being identical to that of flat 48 so that the vertical surfaces 49 and 51 correspond to the same vertical cylinder.
- a grid of semi-cylindrical filtration 52 of the same constitution as the filtration grid carried by the head 36.
- the shell 31 is analogous to the shell 30.
- the shells 30 and 31 When attached to the head 36, the shells 30 and 31 define with the latter a cylindrical mold 28 having a cavity of revolution constituted by an envelope composed by the grids 52, of the two shells 30 and 31, by a flat bottom itself constitutes by the flat face 41 of the grid carried by the head 36 and by a column made up itself by parts 42 and 43 of the grid carried by the head 36.
- the mold shown in Figures 7 to 10 is intended to obtain a part as shown in FIG. 2, the envelope formed by the grids 52 being in this liquid permeable case. For obtaining others configurations this envelope may be only partially permeable to liquids.
- the mold is removed from the aqueous suspension and the blank 55 undergoes a first vacuum dehydration on the mold. Then the shells 30 and 31 are removed and the blank 55 is removed from the mold to undergo a compaction and hot cooking on a baking mold in shape, according to techniques known to man of job. After cooking the element is cut out desired length, which opens the collar central which until then was closed.
- the elements according to the invention thus allow just get combustible containers modular for medium and large artillery ammunition caliber which can be completely and easily loaded with different powder geometries propellants on the market.
- the housing body was filled with 2450g of a double base powder (nitrocellulose / nitroglycerin) under shape of cylindrical grains with 19 holes of potential 900 cal / g or 3780j / g (or 2700g of this same powder under divided strands).
- a double base powder nitrocellulose / nitroglycerin
- 19 holes of potential 900 cal / g or 3780j / g or 2700g of this same powder under divided strands.
- an ignition tube obtained from a coated nitrocellulose single base porous powder by 3% of binder or polyvinyl nitrate.
- This tube has an apparent density of 0.77 g / cm 3 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
- nitrocellulose : 65,8% en poids
- cellulose : 25,6% en poids
- résine acrylique 7,6% en poids
- diphénylamine : 1,0% en poids
- eau : en quantité suffisante pour une suspension aqueuse à 2,5%
- corps de boitier : longueur : 154 mm
diamètre extérieur : 158 mm
diamètre intérieur : 153 mm
col creux longueur : 151,5 mm
diamètre extérieur : 30 mm
diamètre intérieur : 25 mm - couvercle : hauteur de la paroi extérieure : 15 mm
diamètre extérieur : 153 mm
diamètre intérieur : 148 mm
col creux longueur : 15 mm
diamètre extérieur : 25 mm
diamètre intérieur : 20 mm
- force : 1 MJ/kg,
- temps d'inflammation : 3,6 millisecondes,
- temps de combustion : 2,1 millisecondes.
- densité de chargement : : 0,687
- pression maximale atteinte à la rupture de l'opercule : 60 MPa
- augmentation moyenne de la pression : 6x10-3MPa/ms (ms=milliseconde)
- délai d'allumage : 78 ms
- temps de combustion : 3,2 ms.
Claims (9)
- Elément (1) de conteneur combustible comportant un canal central creux, pour munitions d'artillerie obtenu par feutrage sur un moule perméable aux liquides d'une suspension aqueuse constituée principalement par des fibres de nitrocellulose, des fibres de cellulose et par une résine, de manière à obtenir une ébauche du dit élément qui est ensuite compactée et cuite à chaud, caractérisé d'une part en ce que le dit élément (1) présente au moins une partie sensiblement plane de révolution (2) possédant un orifice central circulaire (3) bordé par un col central cylindrique creux (4) et d'autre part en ce que le feutrage de la dite ébauche est effectué en une seule opération.
- Elément de conteneur combustible selon la revendication 1 caractérisé en ce que la dite partie plane (2) de révolution est bordée par une paroi extérieure cylindrique (5) située du même côté que le dit col central (4).
- Elément de conteneur combustible selon la revendication 2 caractérisé en ce que la dite paroi extérieure (5) a une hauteur sensiblement égale à la hauteur du dit col central (4).
- Elément de conteneur combustible selon la revendication 2 caractérisé en ce que la dite paroi extérieure (21) a une hauteur différente de la hauteur du dit col central (20).
- Utilisation d'éléments selon l'une quelconque des revendications 1 à 4 dans un procédé de réalisation de conteneurs combustibles chargés pour munitions d'artillerie, caractérisé en ce que :1) on fabrique par feutrage, compactage et cuisson deux éléments complémentaires (1,6) de conteneurs combustibles,2) on remplit l'un des dits éléments (1) avec une poudre propulsive,3) on rend solidaire de l'élément ainsi rempli le second élément de manière à constituer un conteneur combustible (24) rempli de poudre et possédant un canal central.
- Utilisation selon la revendication 5 caractérisé en ce que l'on introduit dans le dit canal central un tube d'allumage (26).
- Utilisation selon la revendication 6 caractérisé en ce que le dit tube d'allumage (26) est obtenu par agglomération de grains de poudre propulsive enrobés par un liant à base de nitrate de polyvinyle.
- Procédé de fabrication par feutrage d'une ébauche (55) d'éléments selon l'une quelconque des revendications 1 à 4 caractérisé en ce que l'on immerge dans la dite suspension un moule (28) présentant une cavité de révolution constituée par une enveloppe (52), par un fond (41) dont la surface est plane et présentant une colonne centrale (42,43), le dit fond et la dite colonne au moins étant perméables aux liquides et étant maintenus à distance des parois internes du moule de manière à former au moins un espace vide (44), et en ce que l'on exerce une aspiration à l'intérieur de l'espace vide (44).
- Procédé selon la revendication 8 caractérisé en ce que la dite enveloppe extérieure (52) est, au moins partiellement, perméable aux liquides et délimite un espace vide (53) dans lequel on peut faire le vide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9311829 | 1993-10-05 | ||
FR9311829A FR2710976B1 (fr) | 1993-10-05 | 1993-10-05 | Eléments de conteneurs combustibles pour munitions d'artillerie, procédé de fabrication et utilisation de tels éléments. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0646762A1 EP0646762A1 (fr) | 1995-04-05 |
EP0646762B1 true EP0646762B1 (fr) | 1998-03-25 |
Family
ID=9451536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94402205A Expired - Lifetime EP0646762B1 (fr) | 1993-10-05 | 1994-10-04 | Eléments de conteneurs combustibles pour munitions d'artillerie, procédé de fabrication et utilisation de tels éléments |
Country Status (4)
Country | Link |
---|---|
US (1) | US5454323A (fr) |
EP (1) | EP0646762B1 (fr) |
DE (1) | DE69409194T2 (fr) |
FR (1) | FR2710976B1 (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4445991A1 (de) * | 1994-12-22 | 1996-06-27 | Rheinmetall Ind Gmbh | Anzündsystem für Treibladungen und Verfahren zur Herstellung derartiger Anzündsysteme |
FR2736425B1 (fr) * | 1995-07-07 | 1997-08-29 | Giat Ind Sa | Conteneur combustible de charge propulsive pour une munition d'artillerie de campagne |
US5763816A (en) * | 1996-07-26 | 1998-06-09 | Slurry Explosive Corporation | Explosive primer |
US5747723A (en) * | 1996-11-26 | 1998-05-05 | The United States Of America As Represented By The Secretary Of The Army | Modular artillery charge system |
SE519296C2 (sv) * | 1997-08-14 | 2003-02-11 | Bofors Defence Ab | Drivladdningsmodul |
FR2781879A1 (fr) * | 1998-07-30 | 2000-02-04 | Giat Ind Sa | Element de charge propulsive et son procede de fabrication |
US6360666B1 (en) | 2000-06-06 | 2002-03-26 | Alliant Techsystems Inc. | Alignment fixture |
US6343552B1 (en) | 2000-06-06 | 2002-02-05 | Alliant Techsystems Inc. | Solvent application system |
US6382104B1 (en) * | 2000-11-07 | 2002-05-07 | The United States Of America As Represented By The Secretary Of The Navy | Two-piece base pad igniter bag |
US7546804B1 (en) * | 2006-10-10 | 2009-06-16 | The United States Of America As Represented By The Secretary Of The Army | Artillery charge with laser ignition |
JP5814514B2 (ja) * | 2010-04-07 | 2015-11-17 | 旭化成ケミカルズ株式会社 | 簡便な構造の焼尽性容器 |
US8915004B1 (en) | 2011-10-24 | 2014-12-23 | F. Richard Langner | Systems and methods for a firing pin |
US9322625B1 (en) | 2011-10-24 | 2016-04-26 | F. Richard Langner | Systems and methods for launching water from a disrupter cannon |
US9200881B1 (en) | 2011-10-24 | 2015-12-01 | F. Richard Langner | Systems and methods for an improved firing assembly |
JP6411078B2 (ja) * | 2014-06-05 | 2018-10-24 | 日油技研工業株式会社 | 焼尽性材料 |
RU2597120C2 (ru) * | 2015-01-26 | 2016-09-10 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | Материал повышенной термостойкости жесткого сгорающего картуза |
US9625242B1 (en) * | 2015-02-12 | 2017-04-18 | The United States Of America As Represented By The Secretary Of The Army | Igniter for modular artillery charge system |
FR3050521B1 (fr) * | 2016-04-26 | 2018-03-30 | Nexter Munitions | Sac de poudre propulsive, charge propulsive d'artillerie incorporant un tel sac et procede de fabrication |
DE102016112510A1 (de) * | 2016-07-07 | 2018-01-11 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Verfahren und Vorrichtung zur Temperaturermittlung sowie Verfahren und Vorrichtung zum Fügen von Treibladungsmodulen |
US10107607B1 (en) | 2017-04-04 | 2018-10-23 | The United States Of America As Represented By The Secretary Of The Army | Radio frequency igniter |
RU2662537C1 (ru) * | 2017-10-05 | 2018-07-26 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | Жесткий сгорающий картуз для метательных зарядов минометных выстрелов |
US10495425B1 (en) * | 2018-10-04 | 2019-12-03 | United States Of America, As Represented By The Secretary Of The Navy | Thermoformed projectile cartridge |
US10969206B1 (en) | 2018-11-29 | 2021-04-06 | U.S. Government As Represented By The Secretary Of The Army | Radio frequency antenna for use in the confines of a breech |
KR102177959B1 (ko) * | 2019-06-18 | 2020-11-12 | 국방과학연구소 | 단위장약용 일체형 점화기 |
FR3115869B1 (fr) | 2020-11-04 | 2022-11-11 | Eurenco France | Procede de fabrication d'un boitier renfermant un chargement pyrotechnique |
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US3320886A (en) * | 1965-08-31 | 1967-05-23 | Hawley Products Co | Cartridge case and method for the manufacture thereof |
US3474702A (en) * | 1965-12-16 | 1969-10-28 | Us Army | Felting process for making combustible cartridge cases |
US3550532A (en) * | 1967-08-25 | 1970-12-29 | Theodore Zimmerman | Moisture-proof combustible cartridge case |
DE3432291A1 (de) * | 1984-09-01 | 1986-03-13 | Rheinmetall GmbH, 4000 Düsseldorf | Treibladungsmodul |
DE3924986A1 (de) * | 1989-07-28 | 1991-01-31 | Rheinmetall Gmbh | Treibladungsbehaelter |
DE69111944T2 (de) * | 1990-08-30 | 1996-04-18 | Olin Corp | Hülsenloses einheitsliches Ammunitionsladungsmodul. |
DE4124657A1 (de) * | 1991-07-25 | 1993-01-28 | Rheinmetall Gmbh | Modulare treibladung |
JPH05105572A (ja) * | 1991-10-22 | 1993-04-27 | Daicel Chem Ind Ltd | 中心点火薬円筒 |
JP3192181B2 (ja) * | 1991-10-28 | 2001-07-23 | 旭化成株式会社 | ユニット型発射装薬 |
JPH05118792A (ja) * | 1991-10-28 | 1993-05-14 | Asahi Chem Ind Co Ltd | ユニツト発射装薬 |
-
1993
- 1993-10-05 FR FR9311829A patent/FR2710976B1/fr not_active Expired - Lifetime
-
1994
- 1994-09-28 US US08/314,157 patent/US5454323A/en not_active Expired - Lifetime
- 1994-10-04 EP EP94402205A patent/EP0646762B1/fr not_active Expired - Lifetime
- 1994-10-04 DE DE69409194T patent/DE69409194T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2710976B1 (fr) | 1995-11-17 |
DE69409194T2 (de) | 1998-07-30 |
DE69409194D1 (de) | 1998-04-30 |
US5454323A (en) | 1995-10-03 |
FR2710976A1 (fr) | 1995-04-14 |
EP0646762A1 (fr) | 1995-04-05 |
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