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EP1587774B1 - Propelling charge - Google Patents

Propelling charge Download PDF

Info

Publication number
EP1587774B1
EP1587774B1 EP04701927A EP04701927A EP1587774B1 EP 1587774 B1 EP1587774 B1 EP 1587774B1 EP 04701927 A EP04701927 A EP 04701927A EP 04701927 A EP04701927 A EP 04701927A EP 1587774 B1 EP1587774 B1 EP 1587774B1
Authority
EP
European Patent Office
Prior art keywords
propellant charge
weight
percussion
sensitive
proportion
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
Application number
EP04701927A
Other languages
German (de)
French (fr)
Other versions
EP1587774A1 (en
Inventor
Peter Simon Lechner
Reinhard Möller
Rainer Hagel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RWS GmbH
Original Assignee
RUAG Ammotec GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RUAG Ammotec GmbH filed Critical RUAG Ammotec GmbH
Publication of EP1587774A1 publication Critical patent/EP1587774A1/en
Application granted granted Critical
Publication of EP1587774B1 publication Critical patent/EP1587774B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/04—Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases including antifouling and flash suppressing agents
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets

Definitions

  • Propellants for projectiles are usually made of high-energy substances such as e.g. Nitrocellulose or more thermally stable systems, e.g. designed for automotive safety in the form of gas sets and are in use. These versions are gas rich and produce the energy needed to perform the projectile motion through rapid and near-completion. Thermodynamically, this is expressed by the oxygen balance, the specific energy or by the heat of explosion. Such versions are only partially suitable for weapons training systems, as they accelerate the training projectile too much.
  • the propellant charge according to the invention contains, in addition to per se customary heavy metal-free igniters, frictional agents and preferably no oxidants and / or reducing agents.
  • the friction agent also serves as an inert diluent and does not constitute a reaction component.
  • Friction agents according to the invention used are those which exert no abrasive action on the weapon side (soft friction agents). These friction agents are selected from the group of marble, calcite, dolomite and / or soft carbonates such as magnesium carbonate and / or calcium carbonate and / or mixtures thereof.
  • the propellant charge according to the invention also other conventional friction agents can be added in conventional amounts.
  • heavy metal-free igniters impact-sensitive explosives are used. Examples include potassium dinitrobenzofuroxanate and tetrazene. It is known to use Kaliumdinitrobenzofuroxanat and tetracene as components in heavy metal-free igniter sets, but then mostly in the presence of oxidizing and reducing agents.
  • Kaliumdinitrobenzofuroxanat and tetracene is less suitable as a propellant charge for training systems.
  • inventive sentence waived the presence of reducing agents. As a result, the additional surcharges no longer act as oxidizing agents.
  • the kinetic energy of the projectile can be controlled for all types of weapons by varying the recipe of the propellant charge of the invention within wide limits. As a result, the above-described excessive acceleration of the training projectile is avoided.
  • the impact-sensitive propellant charges according to the invention can be labored in conventional primer caps. However, the primers then serve not to ignite a propellant powder, but form even the gas generating set. The primers containing the propellant charges according to the invention can then be ignited, for example, by a primary primer.
  • the impact-sensitive propellant charges according to the invention contain from 5 to 70% by weight, preferably from 10 to 65% by weight, of heavy metal-free igniters, it also being possible to use mixtures of these heavy metal-free igniters.
  • the friction agent according to the invention is used in amounts of from 30 to 95% by weight, preferably in amounts of from 35 to 80% by weight, it also being possible according to the invention to use mixtures of these friction agents.
  • compositions may be mentioned: Power: weak medium strongly potassium dinitrobenzofuroxanate 20% by weight 40% by weight 50% by weight tetracene 0% by weight 10% by weight 15% by weight soft friction agent 80% by weight 50% by weight 35% by weight
  • the propellant charges according to the invention can be used in weapon training systems.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Paints Or Removers (AREA)
  • Lubricants (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Toys (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Medicinal Preparation (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Air Bags (AREA)
  • Braking Arrangements (AREA)

Abstract

Propellant charge comprises a soft friction material.

Description

Treibladungen für Geschosse bestehen in der Regel aus energiereichen Stoffen wie z.B. Nitrocellulose oder thermisch stabileren Systemen, wie sie z.B. für die Kraftfahrzeugsicherheit in Form von Gassätzen entwickelt wurden und sich im Einsatz befinden. Diese Versionen sind gasreich und erzeugen die zur Verrichtung der Geschossbewegung nötige Energie durch schnelle und nahezu vollständige Umsetzung. Thermodynamisch kommt dies durch die Sauerstoffbilanz, die spezifische Energie bzw. durch die Explosionswärme zum Ausdruck. Solche Versionen sind für Waffen-Übungssysteme nur bedingt geeignet, da sie das Übungsgeschoss zu stark beschleunigen.Propellants for projectiles are usually made of high-energy substances such as e.g. Nitrocellulose or more thermally stable systems, e.g. designed for automotive safety in the form of gas sets and are in use. These versions are gas rich and produce the energy needed to perform the projectile motion through rapid and near-completion. Thermodynamically, this is expressed by the oxygen balance, the specific energy or by the heat of explosion. Such versions are only partially suitable for weapons training systems, as they accelerate the training projectile too much.

Die erfindungsgemäße Treibladung enthält neben an sich üblichen schwermetallfreien Anzündstoffen Friktionsmittel und vorzugsweise keine Oxidations- und/oder Reduktionsmittel. Das Friktionsmittel dient gleichzeitig als inertes Verdünnungsmittel und stellt keine Reaktionskomponente dar. Als erfindungsgemäße Friktionsmittel werden solche eingesetzt, die keine abrasive Wirkung auf Waffenteite ausüben (weiche Friktionsmittel). Diese Friktionsmittel werden aus der Gruppe Marmor, Calcit, Dolomit und/oder weiche Carbonate wie Magnesiurncarbonat und/oder Calciumcarbonat und/oder Mischungen daraus ausgewählt.The propellant charge according to the invention contains, in addition to per se customary heavy metal-free igniters, frictional agents and preferably no oxidants and / or reducing agents. The friction agent also serves as an inert diluent and does not constitute a reaction component. Friction agents according to the invention used are those which exert no abrasive action on the weapon side (soft friction agents). These friction agents are selected from the group of marble, calcite, dolomite and / or soft carbonates such as magnesium carbonate and / or calcium carbonate and / or mixtures thereof.

Gegebenenfalls können der erfindungsgemäßen Treibladung auch andere herkömmliche Friktionsmittel in üblichen Mengen zugemischt werden. Als schwermetallfreie Anzündstoffe werden schlagempfindliche Explosivstoffe eingesetzt. Beispielhaft genannt seien Kaliumdinitrobenzofuroxanat und Tetrazen. Es ist bekannt, Kaliumdinitrobenzofuroxanat und Tetrazen als Komponenten in schwermetallfreien Anzündsätzen einzusetzen, jedoch dann meist in Anwesenheit von Oxidations- und Reduktionsmitteln. Ein solcher normaler Anzündsatz, bestehend aus den zuvor beschriebenen Komponenten mit Oxidations- und Reduktionsmitteln ist als Treibladung für Übungssysteme weniger geeignet. Im Gegensatz zum Stand der Technik wird im erfindungsgemäßen Satz auf die Anwesenheit von Reduktionsmitteln verzichtet. Dadurch wirken die weiteren Zuschläge nicht mehr als Oxidationsmittel.Optionally, the propellant charge according to the invention also other conventional friction agents can be added in conventional amounts. As heavy metal-free igniters, impact-sensitive explosives are used. Examples include potassium dinitrobenzofuroxanate and tetrazene. It is known to use Kaliumdinitrobenzofuroxanat and tetracene as components in heavy metal-free igniter sets, but then mostly in the presence of oxidizing and reducing agents. Such a normal ignition charge, consisting of the components described above with oxidizing and reducing agents is less suitable as a propellant charge for training systems. In contrast to the prior art is in inventive sentence waived the presence of reducing agents. As a result, the additional surcharges no longer act as oxidizing agents.

Die kinetische Energie des Geschosses lässt sich für alle Waffentypen durch Variation der Rezeptur der erfindungsgemäßen Treibladung in weiten Grenzen steuern. Dadurch wird die eingangs beschriebene zu starke Beschleunigung des Übungsgeschosses vermieden.The kinetic energy of the projectile can be controlled for all types of weapons by varying the recipe of the propellant charge of the invention within wide limits. As a result, the above-described excessive acceleration of the training projectile is avoided.

Die erfindungsgemäßen schlagempfindlichen Treibladungen können in herkömmlichen Anzündhütchen laboriert werden. Die Anzündhütchen dienen dann jedoch nicht dazu, ein Treibladungspulver anzuzünden, sondern bilden selbst den gaserzeugenden Satz. Die die erfindungsgemäßen Treibladungen enthaltenden Anzündhütchen können dann beispielsweise durch ein primäres Zündhütchen angezündet werden.The impact-sensitive propellant charges according to the invention can be labored in conventional primer caps. However, the primers then serve not to ignite a propellant powder, but form even the gas generating set. The primers containing the propellant charges according to the invention can then be ignited, for example, by a primary primer.

Die erfindungsgemäßen schlagempfindlichen Treibladungen enthalten 5 bis 70 Gew.-%, vorzugsweise 10 bis 65 Gew.-% schwermetallfreie Anzündstoffe enthalten, wobei erfindungsgemäß auch Mischungen dieser schwermetallfreien Anzündstoffe eingesetzt werden können. Das erfindungsgemäße Friktionsmittel wird in Mengen von 30 bis 95 Gew.-%, vorzugsweise in Mengen von 35 bis 80 Gew.-% eingesetzt, wobei erfindungsgemäß auch Mischungen dieser Friktionsmittel eingesetzt werden können.The impact-sensitive propellant charges according to the invention contain from 5 to 70% by weight, preferably from 10 to 65% by weight, of heavy metal-free igniters, it also being possible to use mixtures of these heavy metal-free igniters. The friction agent according to the invention is used in amounts of from 30 to 95% by weight, preferably in amounts of from 35 to 80% by weight, it also being possible according to the invention to use mixtures of these friction agents.

Durch Variation der Satzzusammensetzung lassen sich Treibladungs-Leistungen aller gewünschten Stärken realisieren.By varying the composition of the composition, it is possible to realize propellant charge performances of all desired strengths.

Dabei wurden folgende positive Beobachtungen gemacht:

  • keine Aerosolbildung;
  • keine Waffenerosion durch weiches Friktionsmittel;
  • dennoch ausreichende Friktionswirkung;
  • gleichmäßige Leistungseinstellung möglich.
The following positive observations were made:
  • no aerosol formation;
  • no weapon erosion due to soft friction agent;
  • nevertheless sufficient friction effect;
  • uniform power setting possible.

Beispielhaft genannt seien folgende Zusammensetzungen: Leistung: schwach mittel stark Kaliumdinitrobenzofuroxanat 20 Gew.-% 40 Gew.-% 50 Gew.-% Tetrazen 0 Gew.-% 10 Gew.-% 15 Gew.-% weiches Friktionsmittel 80 Gew.-% 50 Gew.-% 35 Gew.-% By way of example, the following compositions may be mentioned: Power: weak medium strongly potassium dinitrobenzofuroxanate 20% by weight 40% by weight 50% by weight tetracene 0% by weight 10% by weight 15% by weight soft friction agent 80% by weight 50% by weight 35% by weight

Verwendet werden können die erfindungsgemäßen Treibladungen in Waffen-Übungssystemen. The propellant charges according to the invention can be used in weapon training systems.

Claims (7)

  1. A propellant charge for weapons training systems, characterised in that the propellant charge contains a soft friction agent and an ignition substance that is free from heavy metals and consists of at least one percussion-sensitive explosive, wherein the proportion of the percussion-sensitive explosive or the percussion-sensitive explosives in the propellant charge amounts to 5 to 70% by weight, and the proportion of the soft friction agent in the propellant charge amounts to 30 to 95% by weight, wherein the soft friction agent is selected from the group of marble, calcite, dolomite, soft carbonates and/or mixtures thereof.
  2. A propellant charge according to claim 1, characterised in that the proportion of the percussion-sensitive explosive or the percussion-sensitive explosives in the propellant charge amounts to 20 to 65% by weight, and the proportion of the soft friction agent in the propellant charge amounts to 35 to 80% by weight.
  3. A propellant charge according to claim 1 or 2, characterised in that the percussion-sensitive explosive or the percussion-sensitive explosives is/are potassium dinitrobenzofuroxane and/or tetrazene.
  4. A propellant charge according to one or more of claims 1 to 3, characterised in that the propellant charge has the following make-up: 20% by weight potassium dinitrobenzofuroxane and 80% by weight marble powder.
  5. A propellant charge according to one or more of claims 1 to 3, characterised in that the propellant charge has the following make-up: 40% by weight potassium dinitrobenzofuroxane, 10% by weight tetrazene, 50% by weight marble powder.
  6. A propellant charge according to one or more of claims 1 to 3, characterised in that the propellant charge has the following make-up: 50% by weight potassium dinitrobenzofuroxane, 15% by weight tetrazene, 35% by weight marble powder.
  7. A propellant charge according to one or more of claims 1 to 6, characterised in that the propellant charge can be loaded in conventional ignition caps and ignited by a primary percussion cap.
EP04701927A 2003-01-14 2004-01-14 Propelling charge Expired - Lifetime EP1587774B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10301123 2003-01-14
DE10301123 2003-01-14
PCT/EP2004/000197 WO2004063128A1 (en) 2003-01-14 2004-01-14 Propelling charge

Publications (2)

Publication Number Publication Date
EP1587774A1 EP1587774A1 (en) 2005-10-26
EP1587774B1 true EP1587774B1 (en) 2012-03-21

Family

ID=32519954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04701927A Expired - Lifetime EP1587774B1 (en) 2003-01-14 2004-01-14 Propelling charge

Country Status (7)

Country Link
US (2) US20060137787A1 (en)
EP (1) EP1587774B1 (en)
AT (1) ATE550311T1 (en)
DE (1) DE102004001980A1 (en)
ES (1) ES2387125T3 (en)
NO (1) NO332986B1 (en)
WO (1) WO2004063128A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2437077A (en) * 2006-04-13 2007-10-17 Utm Ip Ltd Primer cup and composition
GB2437076A (en) * 2006-04-13 2007-10-17 Utm Ip Ltd Primer composition
IL188714A0 (en) * 2008-01-10 2008-08-07 Rafael Advanced Defense Sys Simulant material for explosives
GB2517119B (en) * 2013-01-17 2021-03-03 Utm Ltd Explosive composition for use in telescopically expanding non-lethal training ammunition

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1406175A (en) * 1920-12-31 1922-02-14 Chadeloid Chemical Co Paint and varnish remover
US1406176A (en) * 1921-06-07 1922-02-14 Diamond Match Co Process of treating match compositions and the product thereof
US3135636A (en) * 1962-01-02 1964-06-02 Atlas Chem Ind Ignition composition containing an alkali metal salt of dinitrobenzfuroxan and a lacqer binder
DE2017633A1 (en) * 1970-04-13 1971-10-28 Josef Schaberger & Co Gmbh, 6535 Gau-Algesheim Ballast-contng propellant with reduceddetona - weapons
DE4010102A1 (en) * 1990-03-29 1991-10-02 Linde Ag METHOD FOR THE ANNEALING OF STEEL FURNACE
US5167736A (en) * 1991-11-04 1992-12-01 Olin Corporation Nontoxic priming mix
DE69508023T2 (en) * 1994-08-27 1999-10-07 Eley Ltd., Witton Initial charge
DE19540278A1 (en) * 1995-10-28 1997-04-30 Dynamit Nobel Ag Lead- and barium-free igniters
DE19616627A1 (en) * 1996-04-26 1997-11-06 Dynamit Nobel Ag Kindling mixtures
DE19643468A1 (en) * 1996-10-22 1998-04-23 Temic Bayern Chem Airbag Gmbh Gas-generating, azide-free solid mixture
GB9705363D0 (en) * 1997-03-14 1997-04-30 Pyrotech Munitions Limited Improvements relating to pyrotechnic ammunition
GB2359124A (en) * 2000-02-08 2001-08-15 Lambeth Properties Ltd Training ammunition

Also Published As

Publication number Publication date
US20060137787A1 (en) 2006-06-29
NO20053807L (en) 2005-10-05
EP1587774A1 (en) 2005-10-26
DE102004001980A1 (en) 2004-07-22
US20090084283A1 (en) 2009-04-02
US9181141B2 (en) 2015-11-10
NO20053807D0 (en) 2005-08-12
ES2387125T3 (en) 2012-09-14
ATE550311T1 (en) 2012-04-15
NO332986B1 (en) 2013-02-11
WO2004063128A1 (en) 2004-07-29

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