EP0340761A2 - Propulsive charges for big calibre projectiles - Google Patents

Propulsive charges for big calibre projectiles Download PDF

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Publication number
EP0340761A2
EP0340761A2 EP89108044A EP89108044A EP0340761A2 EP 0340761 A2 EP0340761 A2 EP 0340761A2 EP 89108044 A EP89108044 A EP 89108044A EP 89108044 A EP89108044 A EP 89108044A EP 0340761 A2 EP0340761 A2 EP 0340761A2
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EP
European Patent Office
Prior art keywords
propellant charge
propellant
powder
grains
central bore
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EP89108044A
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German (de)
French (fr)
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EP0340761B1 (en
EP0340761A3 (en
Inventor
Johannes Eich
Johan Dr. Kobes
Harmen Last
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Dynamit Nobel AG
Muiden Chemie International BV
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Dynamit Nobel AG
Muiden Chemie International BV
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Priority to AT89108044T priority Critical patent/ATE99795T1/en
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
    • C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
    • C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
    • 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
    • F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder

Definitions

  • the present invention relates to propellant charges for large-caliber projectiles which contain propellant powder grains as a powder component.
  • the task was therefore to find a propellant charge for large-caliber ammunition that burns completely, including its cartridge, and has high mechanical strength.
  • the load to be found should also offer the possibility of integrating a central lighting system and having interior ballistic parameters that enable it to be used as a propellant for large-caliber bullets of various types.
  • a propellant charge for large-caliber projectiles made from propellant powder grains has now been found, which is identified as shaped bodies made of the powder grains which are connected to one another by organic polymers in amounts of between 0.2 and 10% by weight, based on the shaped body.
  • Suitable organic polymers are those polymers which have adhesive properties, harden to solid products and are not attacked in contact with propellant grains. They must be resistant to the plasticizers and other additives such as stabilizers or combustion moderators present in the powder grains. On the other hand, they must not contain any plasticizers, solvents or other additives that attack the powder grains. Polymers that have these properties are generally known. In preliminary tests it is easy to determine whether the polymer has the desired properties. Examples of polymers that can be used are the polyurethanes, polyolefins and polyvinyl that harden to solid products compounds such as polyvinyl acetate or polyvinyl nitrate. Copolymers can also be used, such as, for example, acrylonitrile-butadiene-styrene copolymers.
  • the polymers are preferably in foamed form as rigid foam.
  • the foam should be as large as possible, so that it has a density between 15 and 20 kg / m3.
  • the preferred foams are polyurethane foams and polyethylene foams.
  • the former are used particularly with single-base propellant powders, the latter with multi-base propellant powders.
  • the amount of the polymers used is at most 10% by weight, based on the molding.
  • the minimum amount depends on the binding properties of the respective polymer and the desired burn-up data of the propellant charge. It is therefore possible to modify the burnup data of the propellant charge in a desired direction by means of the amount of the polymer.
  • the upper limit of the polymer can be higher than when using non-foamed polymers; the latter are contained in the claimed propellant charges preferably in amounts between 0.2 and 5% by weight. If the polymers are in foamed form, they are generally between 1.5 and 8% by weight, preferably between 2.0 and 5% by weight, based on the charge.
  • the propellant powder grains which are connected by the organic polymer, are propellant powder grains known per se, which are used as propellant charges for large-caliber projectiles. They can exist as a basic or multi-basic powder grains. The geometric shape can also be any; it depends on the desired burning characteristics and the intended use of the finished loads. You can consequently z. B. as tube powder, multi-hole powder, flake powder or tube powder and mixtures of these are present.
  • the individual propellant grains are distributed homogeneously in the claimed molded body.
  • the position and orientation of the individual grains with each other is irrelevant.
  • the polymer need not fill the entire space between the grains; voids may remain between the grains.
  • Such a form of implementation is even preferred and can be achieved in that the individual grains are coated in a first step with the not yet cured polymer and poured onto a desired shape in which the polymer is cured without pressure.
  • the preparation is expediently carried out by pouring the propellant particles in the desired form onto a layer of the polymer which has not yet been foamed and then allowing the polymer to foam into the bulk powder.
  • the temperature of the polymer must not exceed 100 o C during the foaming process.
  • the foam then penetrates evenly through the remaining gaps of the bulk powder during foaming and connects the individual grains to one another to form a solid, dimensionally stable charge. This charge then burns like a pure bulk charge and leaves no residue.
  • the claimed moldings preferably have a cylindrical shape. Furthermore, they can have a central bore in the cylinder axis. In this form, they are suitable as modules in a propellant charge system for large-caliber ones Bullets that are ignited with a central lighting system. These modules can be used directly and do not require a cartridge or sleeve made of combustible material. The length of the cylinders then corresponds to the length of the desired modules.
  • the shaped bodies can also be used as support rings in known combustible propellant charge containers made of combustible material, in order to give these containers better dimensional stability.
  • a support ring can also form the end of such a known propellant charge container; in this case a central drilling is not necessary.
  • the cylindrical or cylindrical shaped bodies can furthermore have, in addition to the central bore mentioned for firing, further through bores parallel to the central bore.
  • This embodiment is also preferably suitable for the case in which the shaped bodies are used as support rings.
  • the diameter of a central bore in a cylindrical shaped body can be up to 30% of the diameter of the cylinder. Further through holes parallel to the axis can have diameters up to this size; however, in those cases where an inventive propellant ring has three or more through bores, the cross sectional area of the through bores should not be more than half the cross sectional area of the cylinder.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Indole Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)

Abstract

The present invention relates to propulsive charges for large- calibre projectiles. The propulsive charges can be used directly, without cartridges or sleeves of combustible material. In the said charges, the powder particles of the propulsive charge are bonded to one another by organic polymers in amounts of between 0.2 and 10% by weight. These polymers are preferably in the form of foams.

Description

Gegenstand der vorliegenden Erfindung sind Treibladungen für großkalibrige Geschosse, die als Pulverbestandteil Treibladungspulverkörner enthalten.The present invention relates to propellant charges for large-caliber projectiles which contain propellant powder grains as a powder component.

Es ist bekannt, Treibladungen für großkalibrige Munition in verbrennbaren Kartuschen einzusetzen, wie sie bei­spielsweise in der DE 34 17 739-A1 oder der EP 0 157 211-A1 beschrieben sind. Solche Kartuschen verbrennen gleichzei­tig während des Abbrands der darin mit enthaltenen Treib­ladung, wodurch ein Ausstoßen der bisher üblichen Metall­kartuschen vermieden wird. Nachteilig bei diesen Kartu­schen aus verbrennbarem Material wirkt sich die ungenü­gende Festigkeit dieser Kartuschen aus. Diese ungenügende Festigkeit tritt besonders dann ein, wenn der Gehalt an Nitrocellulose in diesem Kartuschenmaterial genügend hoch ist, daß eine gute Verbrennung stattfindet. Eine Herab­setzung des Nitrocelluloseanteils in dem Kartuschenma­terial führt zwar zu einer Verbesserung der Festigkeit, bewirkt aber andererseits eine schlechtere Verbrennbar­keit.It is known to use propellant charges for large-caliber ammunition in combustible cartridges, as are described, for example, in DE 34 17 739-A1 or EP 0 157 211-A1. Such cartridges burn simultaneously during the combustion of the propellant charge contained therein, thereby preventing the metal cartridges which have been customary to be ejected. A disadvantage of these cartridges made of combustible material is the insufficient strength of these cartridges. This insufficient strength occurs particularly when the nitrocellulose content in this cartridge material is sufficiently high that good combustion takes place. A reduction in the proportion of nitrocellulose in the cartridge material leads to an improvement in strength, on the other hand, it causes poorer combustibility.

Es bestand deshalb die Aufgabe, für großkalibrige Muni­tion eine Treibladung aufzufinden, die einschließlich ihrer Kartusche vollständig verbrennt und eine hohe me­chanische Festigkeit besitzt. Die aufzufindende Ladung soll zusätzlich die Möglichkeit bieten, eine zentrale Anfeuerung darin zu integrieren und innenballistische Parameter aufweisen, die ihren Einsatz als Treibmittel für großkalibrige Geschosse verschiedener Art ermög­lichen.The task was therefore to find a propellant charge for large-caliber ammunition that burns completely, including its cartridge, and has high mechanical strength. The load to be found should also offer the possibility of integrating a central lighting system and having interior ballistic parameters that enable it to be used as a propellant for large-caliber bullets of various types.

In Erfüllung dieser Aufgabe wurde nun eine Treibladung für großkalibrige Geschosse aus Treibladungspulverkör­nern gefunden, die gekenzeichnet ist als Formkörper aus den Pulverkörnern, die durch organische Polymere in Mengen zwischen 0,2 und 10 Gew.-%, bezogen auf den Formkörper, miteinander verbunden sind.In fulfilling this task, a propellant charge for large-caliber projectiles made from propellant powder grains has now been found, which is identified as shaped bodies made of the powder grains which are connected to one another by organic polymers in amounts of between 0.2 and 10% by weight, based on the shaped body.

Als organische Polymere eignen sich solche Polymere, die Klebeeigenschaften besitzen, zu festen Produkten aushär­ten und im Kontakt mit Treibladungskörnern nicht ange­griffen werden. Sie müssen beständig gegenüber den in den Pulverkörnern anwesenden Weichmachern und sonstigen Zuschlagstoffen wie Stabilisatoren oder Abbrandmodera­toren sein. Andererseits dürfen sie auch keine Weich­macher, Lösungsmittel oder sonstige Zuschlagstoffe ent halten, die die Pulverkörner angreifen. Polymere, die diese Eigenschaften haben, sind allgemein bekannt. In Vorversuchen läßt sich leicht ermitteln, ob das Poly­mere diese gewünschten Eigenschaften besitzt. Beispiele für einsetzbare Polymere sind die zu festen Produkten aushärtenden Polyurethane, Polyolefine und Polyvinyl­ verbindungen wie Polyvinylacetat oder Polyvinylnitrat. Auch Copolymere können eingesetzt werden, wie z.B. Acrylnitril-Butadien-Styrol-Copolymere.Suitable organic polymers are those polymers which have adhesive properties, harden to solid products and are not attacked in contact with propellant grains. They must be resistant to the plasticizers and other additives such as stabilizers or combustion moderators present in the powder grains. On the other hand, they must not contain any plasticizers, solvents or other additives that attack the powder grains. Polymers that have these properties are generally known. In preliminary tests it is easy to determine whether the polymer has the desired properties. Examples of polymers that can be used are the polyurethanes, polyolefins and polyvinyl that harden to solid products compounds such as polyvinyl acetate or polyvinyl nitrate. Copolymers can also be used, such as, for example, acrylonitrile-butadiene-styrene copolymers.

Bevorzugt liegen die Polymeren in aufgeschäumter Form als Hartschaum vor. Der Schaum soll möglichst großporig sein, so daß er eine Dichte zwischen 15 und 20 kg/m³ besitzt. Die bevorzugten Schäume sind Polyurethanschäume und Polyethylenschäume. Erstere werden besonders bei einbasigen Treibladungspulvern, letztere bei mehrbasigen Treibladungspulvern verwendet.The polymers are preferably in foamed form as rigid foam. The foam should be as large as possible, so that it has a density between 15 and 20 kg / m³. The preferred foams are polyurethane foams and polyethylene foams. The former are used particularly with single-base propellant powders, the latter with multi-base propellant powders.

Die Menge der eingesetzten Polymeren liegt maximal bei 10 Gew.-%, bezogen auf den Formkörper. Die Minimalmenge hängt von den Bindeeigenschaften des jeweiligen Poly­meren und den gewünschten Abbranddaten der Treibladung ab. Es ist demzufolge möglich, mittels der Menge des Polymeren die Abbranddaten der Treibladung in einer ge­wünschten Richtung zu modifizieren. Beim Einsatz von Schäumen kann die Obergrenze des Polymeren höher sein als beim Einsatz von ungeschäumten Polymeren; letztere sind in den beanspruchten Treibladungen vorzugsweise in Mengen zwischen 0,2 und 5 Gew.-% enthalten. Beim Vor­liegen der Polymeren in geschäumter Form liegen diese im allgemeinen zwischen 1,5 und 8 Gew.-%, vorzugsweise zwischen 2,0 und 5 Gew.-%, bezogen auf die Ladung, vor.The amount of the polymers used is at most 10% by weight, based on the molding. The minimum amount depends on the binding properties of the respective polymer and the desired burn-up data of the propellant charge. It is therefore possible to modify the burnup data of the propellant charge in a desired direction by means of the amount of the polymer. When using foams, the upper limit of the polymer can be higher than when using non-foamed polymers; the latter are contained in the claimed propellant charges preferably in amounts between 0.2 and 5% by weight. If the polymers are in foamed form, they are generally between 1.5 and 8% by weight, preferably between 2.0 and 5% by weight, based on the charge.

Die Treibladungspulverkörner, die durch das organische Polymere verbunden werden, sind an sich bekannte Treib­ladungspulverkörner, die als Treibladungen für großka­librige Geschosse eingesetzt werden. Sie können als ein basige oder mehrbasige Pulverkörner vorliegen. Die geo­metrische Form kann ebenfalls beliebig sein; sie richtet sich nach den gewünschten Abbrandcharakteristiken und dem Verwendungszweck der fertigen Ladungen. Sie können demzufolge z. B. als Röhrenpulver, Mehrlochpulver, Blätt­chenpulver oder Röhrchenpulver und Mischungen von diesen vorliegen.The propellant powder grains, which are connected by the organic polymer, are propellant powder grains known per se, which are used as propellant charges for large-caliber projectiles. They can exist as a basic or multi-basic powder grains. The geometric shape can also be any; it depends on the desired burning characteristics and the intended use of the finished loads. You can consequently z. B. as tube powder, multi-hole powder, flake powder or tube powder and mixtures of these are present.

In dem beanspruchten Formkörper liegen die einzelnen Treibladungskörner homogen verteilt vor. Die Lage und Ausrichtung der einzelnen Körner zueinander spielt keine Rolle. Beim Einsatz von nicht aufgeschäumten Po­lymeren braucht das Polymere nicht den gesamten Zwi­schenraum zwischen den Körnern auszufüllen; es können Hohlräume zwischen den Körnern verbleiben. Eine solche Durchführungsform ist sogar bevorzugt und läßt sich da­durch erreichen, daß die einzelnen Körner in einem er­sten Arbeitsgang mit dem noch nicht ausgehärteten Poly­meren überzogen werden und darauf in eine gewünschte Form geschüttet werden, in der die drucklose Aushärtung des Polymeren stattfindet.The individual propellant grains are distributed homogeneously in the claimed molded body. The position and orientation of the individual grains with each other is irrelevant. When using non-foamed polymers, the polymer need not fill the entire space between the grains; voids may remain between the grains. Such a form of implementation is even preferred and can be achieved in that the individual grains are coated in a first step with the not yet cured polymer and poured onto a desired shape in which the polymer is cured without pressure.

Beim Einsatz von schäumfähigen Polymeren erfolgt die Herstellung zweckmäßigerweise so, daß man in der ge­wünschten Form die Treibladungskörner auf eine Schicht des noch nicht aufgeschäumten Polymeren schüttet und anschließend das Polymere in das Schüttpulver aufschäu­men läßt. Während des Aufschäumvorganges darf die Tem­peratur des Polymeren 100 oC nicht übersteigen. Der Schaum dringt dann während des Aufschäumens durch die verbleibenden Zwischenräume des Schüttpulvers gleich­mäßig hindurch und verbindet die einzelnen Körner mit­einander zu einer festen, formstabilen Ladung. Diese Ladung brennt dann wie eine reine Schüttladung ab und hinterläßt keine Rückstände.When foamable polymers are used, the preparation is expediently carried out by pouring the propellant particles in the desired form onto a layer of the polymer which has not yet been foamed and then allowing the polymer to foam into the bulk powder. The temperature of the polymer must not exceed 100 o C during the foaming process. The foam then penetrates evenly through the remaining gaps of the bulk powder during foaming and connects the individual grains to one another to form a solid, dimensionally stable charge. This charge then burns like a pure bulk charge and leaves no residue.

Die beanspruchten Formkörper haben vorzugsweise Zylinder­form. Weiterhin können sie eine zentrale Bohrung in der Zylinderachse aufweisen. In dieser Form eignen sie sich als Module in einem Treibladungssystem für großkalibrige Geschosse, die mit einem zentralen Anfeuerungssystem ge­zündet werden. Diese Module können direkt eingesetzt werden und benötigen keine Kartusche oder Hülse aus ver­brennbarem Material. Die Länge der Zylinder entspricht dann der Länge der gewünschten Module.The claimed moldings preferably have a cylindrical shape. Furthermore, they can have a central bore in the cylinder axis. In this form, they are suitable as modules in a propellant charge system for large-caliber ones Bullets that are ignited with a central lighting system. These modules can be used directly and do not require a cartridge or sleeve made of combustible material. The length of the cylinders then corresponds to the length of the desired modules.

Die Formkörper können jedoch auch als Stützringe in be­kannten verbrennbaren Treibladungsbehältern aus verbrenn­barem Material eingesetzt werden, um diesen Behältern eine bessere Formbeständigkeit zu verleihen. Ein solcher Stützring kann auch den Abschluß eines solchen bekannten Treibladungsbehälters bilden; in diesem Fall ist eine zentrale Bohrung nicht notwendig.However, the shaped bodies can also be used as support rings in known combustible propellant charge containers made of combustible material, in order to give these containers better dimensional stability. Such a support ring can also form the end of such a known propellant charge container; in this case a central drilling is not necessary.

Die zylindrischen oder zylinderförmigen Formkörper können weiterhin zusätzlich zu der genannten zentralen Bohrung für eine Anfeuerung noch weitere durchgehende Bohrungen parallel zu der Zentralbohrung aufweisen. Diese Durchfüh­rungsform eignet sich ebenfalls bevorzugt für den Fall, daß die Formkörper als Stützringe eingesetzt werden.The cylindrical or cylindrical shaped bodies can furthermore have, in addition to the central bore mentioned for firing, further through bores parallel to the central bore. This embodiment is also preferably suitable for the case in which the shaped bodies are used as support rings.

Der Durchmesser einer zentralen Bohrung in einem zylin­derförmigen Formkörper kann bis zu 30 % des Durchmessers des Zylinders betragen. Auch weitere achsenparallele Durchbohrungen können Durchmesser bis zu dieser Größe haben; jedoch sollte in diesen Fällen, in denen ein er­findungsgemäßer Treibladungsring drei oder mehrere Durch­bohrungen aufweist, die Querschnittsfläche der Durchboh­rungen nicht mehr als die halbe Querschnittsfläche des Zylinders ausmachen.The diameter of a central bore in a cylindrical shaped body can be up to 30% of the diameter of the cylinder. Further through holes parallel to the axis can have diameters up to this size; however, in those cases where an inventive propellant ring has three or more through bores, the cross sectional area of the through bores should not be more than half the cross sectional area of the cylinder.

Die Erfindung wird anhand der beigefügten Zeichnungen beispielhaft erläutert.

  • Figur 1 ist eine perspektivische Darstellung eines erfin­dungsgemäßen Zylinders, der hergestellt wurde durch Auf­schäumen von 150 g flüssigem, schäumbarem Polyurethan in eine Schüttung von 3 000 g Treibladungspulverkörnern (Mehrlochpulver) in einem Rohr von 157 mm Durchmesser. Die Treibladungskörner 1 sind in dem Schaum 2 nach des­sen Aufschäumen und Aushärten fest eingebettet. Die Höhe des erhaltenen zylindrischen Treibladungskörpers betrug 185 mm.
  • Figur 2 zeigt einen Zylinder, der in gleicher Weise wie derjenige von Figur 1 hergestellt wurde, teilweise auf­geschnitten. Er enthält zusätzlich noch eine zentrale Bohrung 3, die dadurch erhalten wurde, daß in dem Rohr, in das das Polyurethan und die Pulverkörner eingegeben wurden, zentral ein Zylinder mit dem Durchmesser der Boh­rung 3 angeordnet war, der nach dem Aushärten des Schaums entfernt wurde. Dieser Körper enthält Treibladungspulver­körner unterschiedlicher Geometrie.
The invention is explained by way of example with reference to the accompanying drawings.
  • FIG. 1 is a perspective view of a cylinder according to the invention, which was produced by foaming 150 g of liquid, foamable polyurethane in a bed of 3,000 g of propellant charge powder particles (multi-hole powder) in a tube with a diameter of 157 mm. The propellant particles 1 are firmly embedded in the foam 2 after it has been foamed and hardened. The height of the cylindrical propellant charge obtained was 185 mm.
  • Figure 2 shows a cylinder, which was produced in the same way as that of Figure 1, partially cut away. It also contains a central bore 3, which was obtained in that a cylinder with the diameter of the bore 3 was arranged centrally in the tube into which the polyurethane and the powder grains were introduced, which was removed after the foam had hardened. This body contains propellant powder grains of different geometries.

Claims (7)

1. Treibladung für großkalibrige Geschosse aus Treibla­dungspulverkörnern, gekennzeichnet als Formkörper aus den Pulverkörnern, die durch orga­nische Polymere in Mengen zwischen 0,2 und 10 Gew.-%, bezogen auf den Formkörper, miteinander verbunden sind.1. Propellant charge for large-caliber projectiles made from propellant powder grains, characterized as shaped bodies made from the powder grains which are connected to one another by organic polymers in amounts between 0.2 and 10% by weight, based on the shaped body. 2. Treibladung gemäß Anspruch 1, dadurch gekennzeichnet, daß das organische Polymere in Form eines ausgehär­teten duroplastischen Schaums in den Formkörper vor­liegt.2. propellant charge according to claim 1, characterized in that the organic polymer is present in the form of a cured thermosetting foam. 3. Treibladung gemäß Ansprüchen 1 und 2, dadurch gekenn­zeichnet, daß der Schaum ein Polyurethanschaum ist.3. propellant charge according to claims 1 and 2, characterized in that the foam is a polyurethane foam. 4. Treibladungskörper gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß er als Zylinder ausge­bildet ist.4. propellant charge body according to one of claims 1 to 3, characterized in that it is designed as a cylinder. 5. Treibladungskörper gemäß Anspruch 4, dadurch gekenn­zeichnet, daß er eine zentrale Bohrung in der Zylinderachse aufweist, deren Durchmesser bis zu 30 % des Durchmessers des Zylinders beträgt.5. propellant charge body according to claim 4, characterized in that it has a central bore in the cylinder axis, the diameter of which is up to 30% of the diameter of the cylinder. 6. Treibladungskörper gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß er zusätzlich zu einer zentralen Bohrung noch Bohrungen parallel zu dieser Zentralbohrung aufweist.6. propellant charge body according to one of claims 1 to 5, characterized in that it has holes in addition to a central bore parallel to this central bore. 7. Verwendung von Treibladungskörpern gemäß Anspruch 6 als Stützring in Kartuschenbehältern für Treibladungs­pulver.7. Use of propellant charge bodies according to claim 6 as a support ring in cartridge containers for propellant charge powder.
EP89108044A 1988-05-06 1989-05-03 Propulsive charges for big calibre projectiles Expired - Lifetime EP0340761B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89108044T ATE99795T1 (en) 1988-05-06 1989-05-03 PROPELLER CHARGES FOR LARGE-CALIBRE BULLETS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3815436 1988-05-06
DE3815436A DE3815436A1 (en) 1988-05-06 1988-05-06 DRIVE CHARGES FOR LARGE-CALIBRED BULLETS

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EP0340761A2 true EP0340761A2 (en) 1989-11-08
EP0340761A3 EP0340761A3 (en) 1990-09-12
EP0340761B1 EP0340761B1 (en) 1994-01-05

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EP89108044A Expired - Lifetime EP0340761B1 (en) 1988-05-06 1989-05-03 Propulsive charges for big calibre projectiles

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Country Link
EP (1) EP0340761B1 (en)
AT (1) ATE99795T1 (en)
DE (2) DE3815436A1 (en)
ES (1) ES2049273T3 (en)
NO (1) NO891755L (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU672009B2 (en) * 1992-06-19 1996-09-19 Thyssen Guss Ag Process for producing a protective coating on metal walls subject to attack by hot gases, especially flue gases
EP0794164A1 (en) * 1996-03-06 1997-09-10 Oea, Inc. Substantially smoke-free and particulate free inflator for inflatable safety restraint system
FR2781878A1 (en) * 1998-07-31 2000-02-04 Giat Ind Sa PROCESS FOR IMPLEMENTING A PYROTECHNIC SUBSTANCE AND PYROTECHNIC INITIATOR OBTAINED WITH SUCH A METHOD
US6120626A (en) * 1998-10-23 2000-09-19 Autoliv Asp Inc. Dispensing fibrous cellulose material
US6176517B1 (en) 1998-10-23 2001-01-23 Autoliv Aspinc. Gas generating apparatus
US6334917B1 (en) 1998-10-23 2002-01-01 Autoliv Asp, Inc. Propellant compositions for gas generating apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499244B1 (en) 1991-02-15 1997-04-16 Dynamit Nobel GmbH Explosivstoff- und Systemtechnik Modular propellant charge
DE19546582C2 (en) * 1995-12-13 1998-07-30 Wolfhart Fritze Maneuver cartridge
DE102010045383B4 (en) 2010-09-14 2014-01-16 Diehl Bgt Defence Gmbh & Co. Kg Propellant charge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB513633A (en) * 1937-03-04 1939-10-18 American Cyanamid Co Improvements in or relating to explosives
GB534900A (en) * 1939-08-17 1941-03-21 American Cyanamid Co Improvements in or relating to explosives
US3049454A (en) * 1955-08-15 1962-08-14 Howard J Stark Low density cellular explosive foam
DE1214584B (en) * 1962-10-02 1966-04-14 Kalk Chemische Fabrik Gmbh Free-flowing explosive and / or propellant mixtures based on inorganic and / or organic explosives
FR2290409A1 (en) * 1974-10-11 1976-06-04 Hercules Inc Solid propellant contg uniformly dispersed thin graphite fibres - increasing combustion rate of all propellant types
FR2418781A1 (en) * 1978-03-03 1979-09-28 Saint Louis Inst Propellant for gun ammunition - with mixt. of plastic foam and secondary explosive crystallites
EP0005112A1 (en) * 1978-04-13 1979-10-31 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Propulsive charge for ammunition and process for charging cartridges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688697A (en) * 1969-07-31 1972-09-05 Aerojet General Co Solid grain caseless ammunition propellant
DE2843477A1 (en) * 1978-10-05 1980-04-17 Dynamit Nobel Ag Solid propellant charge - contg. polymeric binder and reinforcing fibres, e.g. cellulosic fibres
DE3242106C1 (en) * 1982-11-13 1984-06-14 Diehl GmbH & Co, 8500 Nürnberg Propellent charge compositions for barrel-type weapons

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB513633A (en) * 1937-03-04 1939-10-18 American Cyanamid Co Improvements in or relating to explosives
GB534900A (en) * 1939-08-17 1941-03-21 American Cyanamid Co Improvements in or relating to explosives
US3049454A (en) * 1955-08-15 1962-08-14 Howard J Stark Low density cellular explosive foam
DE1214584B (en) * 1962-10-02 1966-04-14 Kalk Chemische Fabrik Gmbh Free-flowing explosive and / or propellant mixtures based on inorganic and / or organic explosives
FR2290409A1 (en) * 1974-10-11 1976-06-04 Hercules Inc Solid propellant contg uniformly dispersed thin graphite fibres - increasing combustion rate of all propellant types
FR2418781A1 (en) * 1978-03-03 1979-09-28 Saint Louis Inst Propellant for gun ammunition - with mixt. of plastic foam and secondary explosive crystallites
EP0005112A1 (en) * 1978-04-13 1979-10-31 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Propulsive charge for ammunition and process for charging cartridges

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
T.C. OHART: "Elements of Ammunition, 1946, Seiten 21-24, John Wiley & Sons, Inc., New York, US; "Propellants" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU672009B2 (en) * 1992-06-19 1996-09-19 Thyssen Guss Ag Process for producing a protective coating on metal walls subject to attack by hot gases, especially flue gases
EP0794164A1 (en) * 1996-03-06 1997-09-10 Oea, Inc. Substantially smoke-free and particulate free inflator for inflatable safety restraint system
US5868424A (en) * 1996-03-06 1999-02-09 Oea, Inc. Substantially smoke-free and particulate-free inflator for inflatable safety restraint system
FR2781878A1 (en) * 1998-07-31 2000-02-04 Giat Ind Sa PROCESS FOR IMPLEMENTING A PYROTECHNIC SUBSTANCE AND PYROTECHNIC INITIATOR OBTAINED WITH SUCH A METHOD
WO2000008412A1 (en) * 1998-07-31 2000-02-17 Giat Industries Method for preparing a pyrotechnic substance and resulting pyrotechnic initiator
US6120626A (en) * 1998-10-23 2000-09-19 Autoliv Asp Inc. Dispensing fibrous cellulose material
US6176517B1 (en) 1998-10-23 2001-01-23 Autoliv Aspinc. Gas generating apparatus
US6334917B1 (en) 1998-10-23 2002-01-01 Autoliv Asp, Inc. Propellant compositions for gas generating apparatus

Also Published As

Publication number Publication date
ES2049273T3 (en) 1994-04-16
EP0340761B1 (en) 1994-01-05
ATE99795T1 (en) 1994-01-15
NO891755D0 (en) 1989-04-27
EP0340761A3 (en) 1990-09-12
DE3815436A1 (en) 1989-11-16
NO891755L (en) 1989-11-07
DE58906615D1 (en) 1994-02-17

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