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EP0334725A1 - Primer charges and method of manufacture thereof - Google Patents

Primer charges and method of manufacture thereof Download PDF

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Publication number
EP0334725A1
EP0334725A1 EP89400720A EP89400720A EP0334725A1 EP 0334725 A1 EP0334725 A1 EP 0334725A1 EP 89400720 A EP89400720 A EP 89400720A EP 89400720 A EP89400720 A EP 89400720A EP 0334725 A1 EP0334725 A1 EP 0334725A1
Authority
EP
European Patent Office
Prior art keywords
charges according
explosive
powder
priming charges
reducing agent
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.)
Granted
Application number
EP89400720A
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German (de)
French (fr)
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EP0334725B1 (en
Inventor
Jean René Duguet
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.)
NCS Pyrotechnie et Technologies SAS
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NCS Pyrotechnie et Technologies SAS
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Priority to AT89400720T priority Critical patent/ATE85789T1/en
Publication of EP0334725A1 publication Critical patent/EP0334725A1/en
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Publication of EP0334725B1 publication Critical patent/EP0334725B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/08—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound
    • C06B33/10—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound the compound being an aromatic
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers

Definitions

  • the present invention relates to new priming charges with central or annular percussion, as well as their manufacturing process.
  • priming filler compositions based on mercury fulminate are practically no longer used, essentially due to their high toxicity and their lack of thermal stability. They were first replaced by compositions containing compounds of lead, antimony and barium. These latter compounds, during the operation of the primer, give rise to the emission of residues containing these elements which are released into the atmosphere. They thus cause serious pollution of the premises, shooting ranges, often confined in which the cartridges are fired in great numbers.
  • EP-A-0 012 081 describes, for example, compositions using diazodinitrophenol as an energy explosive.
  • these compositions have the drawback of containing, as an oxidizing agent, zinc peroxide, which is difficult to obtain in a state of sufficient purity, as well as powdered titanium as a reducing agent.
  • the latter has the disadvantage of a high price, and a certain toxicity.
  • the object of the present invention is precisely to develop new compositions which can be used in primers with central or annular percussion, which do not exhibit any toxicity.
  • the percussion initiation charges, free from toxic metal, in accordance with the present invention are of the type comprising at least one primary explosive, an oxidizing agent, a reducing agent and an inert abrasive powder. They are essentially characterized in that said oxidizing agent contains copper oxide.
  • the percussion initiation charges advantageously correspond to the following weight composition: 10 to 40% diazodinitrophenol; 10 to 60% of a shock-sensitive booster explosive; 10 to 40% cupric oxide; 5 to 20% of a pulverulent reducing agent; 5 to 25% of an inert abrasive powder, and 0 to 5% of a binder.
  • the extra explosive sensitive to shock can be constituted by tetrazene.
  • the percussion ignition charges according to the invention then respond to a weight composition of the following type: 20 to 40% diazodinitrophenol; 10 to 30% tetrazene; 20 to 40% cupric oxide; 5 to 20% aluminum powder; 5 to 20% glass powder; 0 to 5% of binder.
  • the extra explosive sensitive to shock consists of a dinitrobenzofuroxane salt, in particular the potassium salt.
  • the percussion initiation charges according to the invention correspond to the following weight composition: 5 to 25% diazodinitrophenol; 35 to 55% of potassium dinitrobenzofuroxane; 10 to 30% cupric oxide; 5 to 20% iron powder; 5 to 20% glass powder, and 0 to 5% of binder.
  • This particular type of percussion ignition charge remains stable up to temperatures at least 120 ° C.
  • the percussion initiation charges may also contain an additional oxidizing agent, chosen from ferric oxide, metallic salycilates, ascorbic acid, mineral or organic peroxides as well as mixtures of these compounds.
  • the pulverulent reducing agent will advantageously be chosen from aluminum, iron, zinc, magnesium and also mixtures of these metals.
  • the inert abrasive powder is advantageously constituted by glass powder.
  • the reducing agent and / or the inert abrasive powder may be based on calcium silicide.
  • the latter compound alone can fulfill both the functions of reducing agent and abrasive agent.
  • the present invention also relates to a method for manufacturing percussion ignition charges as defined above.
  • this process is characterized in that the following successive steps are carried out: * the copper oxide, the reducing agent (s) and the abrasive powder are dry mixed; * the diazodinitrophenol and the additional explosive are added to this inert mixture, and * the mixture thus obtained is homogenized.
  • a binder solution is added to the inert mixture, for example in the form of an aqueous solution of gum arabic.
  • the non-explosive ingredients are weighed: cupric oxide, aluminum and glass powder and are introduced into a rotary mixer where they are stirred until homogeneous. They are then transferred to a planetary mixer for wet compositions, the necessary amount of water is added, then the diazodinitrophenol and tetrazene previously weighed are poured in and finally an aqueous solution of gum arabic acting as a binder.
  • the various pulverulent constituents are generally used with an average particle size of less than approximately 250 ⁇ m. We mix for the necessary time.
  • the composition is then ready for use, it contains the following percentages by dry weight: Diazodinitrophenol 29.8% Tetrazene 19.8% Cupric oxide 29.8% Aluminum powder 9.8% Glass powder 9.8% Gum arabic 1.0%
  • This composition is then distributed by spreading according to the conventional method in primer cells with a diameter of 4.45 mm so as to obtain charges of 18 ⁇ 2 mg per primer.
  • Using a flat punch place a paper disc, then dry the primers and compresses according to the conventional method with a pressing force of 150 daN on each primer. After varnishing, the anvil is put in place and the drying is finished.
  • These primers are then tested in sensitivity on a firing assembly for primers: 0 ⁇ 2 mm round point striker 55 g ball Fall height 220 mm Result: out of 50 priming charges tested, all work
  • Primers are also mounted on .38sp caliber cases which are tested on a drop sheep with the same ball.
  • the average operating height H obtained is 140 mm, with an estimated standard deviation S of 22 mm, which gives an H + 5S of 250 mm and an H-2S of 96 mm.
  • .38sp cartridges are made with the above primers, 430 mg of BA9 powder and truncated semi-armored bullets. They are then drawn with a Smith and Wesson mle 58G pistol. They give an initial speed of 300 ⁇ 5 m / s, which is perfectly correct.
  • a composition according to the second variant of the invention is prepared in the same manner as above, containing: Potassium dinitrobenzofuroxan 44.8% Diazodinitrophenol 14.8% Cupric oxide 19.8% Powdered iron 9.8% Glass powder 9.8% Gum arabic 1.0%
  • This composition is distributed by spreading in cases for annular percussion of .22 or 6 mm or 9 mm caliber or other and distributed by compression or turbination or any other mechanical means, in the bead thereof. These cases are tested for their sensitivity to percussion: the fall of a 111.7 g ball on the striker from a height of 200 mm causes certain operation, which is considered satisfactory for this type of ammunition .

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Glass Compositions (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

New percussive primer charges and process for their manufacture. The percussive primer charges according to the present invention, which are free from toxic metal, of the type comprising at least one primary explosive, an oxidising agent, a reducing agent and an inert abrasive powder, are characterised in that the said oxidising agent contains cupric oxide.

Description

La présente invention concerne de nouvelles charges d'a­morçage à percussion centrale ou annulaire, ainsi que leur procédé de fabrication.The present invention relates to new priming charges with central or annular percussion, as well as their manufacturing process.

Les charges d'amorçage destinées à assurer l'allumage des poudres propulsives dans les cartouches de tir et de guerre, à percussion annulaire ou centrale et généralement dans tous les dispositifs produisant une flamme à partir de l'action d'un percuteur, présentent actuellement l'inconvénient de renfermer des composés toxiques.Priming charges intended to ensure the ignition of propellant powders in shooting and war cartridges, with annular or central percussion and generally in all devices producing a flame from the action of a striker, presently present the disadvantage of containing toxic compounds.

De nos jours, les compositions de charges d'amorçage à base de fulminate de mercure ne sont pratiquement plus utilisées, essentiel­lement en raison de leur forte toxicité et de leur manque de stabilité thermique. Elles ont tout d'abord été remplacées par des compositions renfermant des composés du plomb, de l'antimoine et du baryum. Ces derniers composés, lors du fonctionnement de l'amorce, donnent lieu à l'émission de résidus contenant ces éléments qui sont libérés dans l'atmosphère. Ils occasionnent ainsi une grave pollution des locaux, stands de tir, souvent confinés dans lesquels les cartouches sont tirées en très grand nombre.Nowadays, priming filler compositions based on mercury fulminate are practically no longer used, essentially due to their high toxicity and their lack of thermal stability. They were first replaced by compositions containing compounds of lead, antimony and barium. These latter compounds, during the operation of the primer, give rise to the emission of residues containing these elements which are released into the atmosphere. They thus cause serious pollution of the premises, shooting ranges, often confined in which the cartridges are fired in great numbers.

Ce problème de toxicité a été soulevé depuis quelques années, et l'on a déjà tenté à plusieurs reprises de le résoudre.This toxicity problem has been raised in recent years, and attempts have been made to resolve it several times.

EP-A-0 012 081 décrit par exemple des compositions utilisant le diazodinitrophénol en tant qu'explosif énergétique. Ces compositions présentent cependant l'inconvénient de renfermer en tant qu'agent oxydant du peroxyde de zinc, difficile à obtenir à l'état de pureté suffisant, ainsi que du titane en poudre en tant qu'agent réducteur. Ce dernier présente l'inconvénient d'un prix élevé, et d'une certaine toxicité.EP-A-0 012 081 describes, for example, compositions using diazodinitrophenol as an energy explosive. However, these compositions have the drawback of containing, as an oxidizing agent, zinc peroxide, which is difficult to obtain in a state of sufficient purity, as well as powdered titanium as a reducing agent. The latter has the disadvantage of a high price, and a certain toxicity.

Une autre composition a été décrite dans US-A-4 675 059 qui fait également appel au diazodinitrophénol en tant qu'explosif mais qui utilise le bioxyde de manganèse en tant qu'agent oxydant. Ce dernier présente une concentration maximale tolérable dans l'air de 5 mg/m³ et ne peut donc pas être considéré comme un produit non toxique.Another composition has been described in US-A-4 675 059 which also uses diazodinitrophenol as an explosive but which uses manganese dioxide as an oxidizing agent. The latter has a maximum tolerable concentration in air of 5 mg / m³ and cannot therefore be considered as a non-toxic product.

La présente invention a précisément eu pour but de mettre au point de nouvelles compositions utilisables dans les amorces à percussion centrale ou annulaire, qui ne présentent pas de toxicité.The object of the present invention is precisely to develop new compositions which can be used in primers with central or annular percussion, which do not exhibit any toxicity.

Les charges d'amorçage à percussion, exempte de métal toxique, conformes à la présente invention sont du type comprenant au moins un explosif primaire, un agent oxydant, un agent réducteur et une poudre abrasive inerte. Elles sont essentiellement caractérisées en ce que ledit agent oxydant contient de l'oxyde de cuivre.The percussion initiation charges, free from toxic metal, in accordance with the present invention are of the type comprising at least one primary explosive, an oxidizing agent, a reducing agent and an inert abrasive powder. They are essentially characterized in that said oxidizing agent contains copper oxide.

Conformément à la présente invention, les charges d'amorçage à percussion répondent avantageusement à la composition pondérale suivante :
10 à 40 % de diazodinitrophénol ;
10 à 60 % d'un explosif d'appoint sensible au choc ;
10 à 40 % d'oxyde cuivrique ;
5 à 20 % d'un agent réducteur pulvérulent ;
5 à 25 % d'une poudre abrasive inerte, et
0 à 5 % d'un liant.In accordance with the present invention, the percussion initiation charges advantageously correspond to the following weight composition:
10 to 40% diazodinitrophenol;
10 to 60% of a shock-sensitive booster explosive;
10 to 40% cupric oxide;
5 to 20% of a pulverulent reducing agent;
5 to 25% of an inert abrasive powder, and
0 to 5% of a binder.

Selon une première variante, l'explosif d'appoint sensible au choc peut être constitué par du tétrazène.According to a first variant, the extra explosive sensitive to shock can be constituted by tetrazene.

Les charges d'amorçage à percussion selon l'invention répondent alors à une composition pondérale du type suivant :
20 à 40 % de diazodinitrophénol;
10 à 30 % de tétrazène;
20 à 40 % d'oxyde cuivrique;
5 à 20 % d'aluminium en poudre;
5 à 20 % de poudre de verre;
0 à 5 % de liant.The percussion ignition charges according to the invention then respond to a weight composition of the following type:
20 to 40% diazodinitrophenol;
10 to 30% tetrazene;
20 to 40% cupric oxide;
5 to 20% aluminum powder;
5 to 20% glass powder;
0 to 5% of binder.

Selon une seconde variante de l'invention, l'explosif d'appoint sensible au choc est constitué par un sel de dinitrobenzofuroxanne, en particulier le sel de potassium.According to a second variant of the invention, the extra explosive sensitive to shock consists of a dinitrobenzofuroxane salt, in particular the potassium salt.

Dans pareil cas, les charges d'amorçage à percussion selon l'invention répondent à la composition pondérale suivante :
5 à 25 % de diazodinitrophénol;
35 à 55 % de dinitrobenzofuroxanne de potassium;
10 à 30 % d'oxyde cuivrique;
5 à 20 % de fer en poudre;
5 à 20 % de poudre de verre, et
0 à 5 % de liant.In such a case, the percussion initiation charges according to the invention correspond to the following weight composition:
5 to 25% diazodinitrophenol;
35 to 55% of potassium dinitrobenzofuroxane;
10 to 30% cupric oxide;
5 to 20% iron powder;
5 to 20% glass powder, and
0 to 5% of binder.

Ce type particulier de charges d'amorçage à percussion reste stable jusqu'à des températures au moins égales à 120°C.This particular type of percussion ignition charge remains stable up to temperatures at least 120 ° C.

Selon une autre caractéristique de l'invention, les charges d'amorçage à percussion peuvent en outre contenir un agent oxydant additionnel, choisi parmi l'oxyde ferrique, les salycilates métalliques, l'acide ascorbique, les peroxydes minéraux ou organiques ainsi que les mélanges de ces composés.According to another characteristic of the invention, the percussion initiation charges may also contain an additional oxidizing agent, chosen from ferric oxide, metallic salycilates, ascorbic acid, mineral or organic peroxides as well as mixtures of these compounds.

Selon une autre caractéristique de l'invention, l'agent réducteur pulvérulent sera avantageusement choisi parmi l'aluminium, le fer, le zinc, le magnésium ainsi que les mélanges de ces métaux.According to another characteristic of the invention, the pulverulent reducing agent will advantageously be chosen from aluminum, iron, zinc, magnesium and also mixtures of these metals.

Enfin, selon une autre caractéristique de l'invention, la poudre abrasive inerte est avantageusement constituée par de la poudre de verre.Finally, according to another characteristic of the invention, the inert abrasive powder is advantageously constituted by glass powder.

Dans un mode de réalisation particulier des charges d'amorçage à percussion selon l'invention, l'agent réducteur et/ou la poudre abrasive inerte peuvent être à base de siliciure de calcium. Ce dernier composé peut, à lui seul, remplir à la fois les fonctions d'agent réducteur et d'agent abrasif.In a particular embodiment of the percussion initiation charges according to the invention, the reducing agent and / or the inert abrasive powder may be based on calcium silicide. The latter compound alone can fulfill both the functions of reducing agent and abrasive agent.

La présente invention concerne également un procédé de fabrication des charges d'amorçage à percussion telles que définies précédemment. Selon l'invention ce procédé est caractérisé en ce que l'on réalise les étapes successives suivantes :
* on mélange à sec l'oxyde cuivrique, le ou les agent(s) réducteur(s) et la poudre abrasive ;
* on ajoute à ce mélange inerte le diazodinitrophénol et l'explosif d'appoint, et
* on homogénéise le mélange ainsi obtenu.The present invention also relates to a method for manufacturing percussion ignition charges as defined above. According to the invention, this process is characterized in that the following successive steps are carried out:
* the copper oxide, the reducing agent (s) and the abrasive powder are dry mixed;
* the diazodinitrophenol and the additional explosive are added to this inert mixture, and
* the mixture thus obtained is homogenized.

Le cas échéant, en plus des explosifs, on ajoute au mélange inerte une solution de liant, par exemple sous la forme d'une solution aqueuse de gomme arabique.Where appropriate, in addition to the explosives, a binder solution is added to the inert mixture, for example in the form of an aqueous solution of gum arabic.

L'objet de la présente invention sera décrit ci-après plus en détail en se référant à deux exemples de réalisation particuliers donnés à simple titre d'illustration.The object of the present invention will be described below in more detail with reference to two particular exemplary embodiments given by way of illustration.

EXEMPLE 1EXAMPLE 1

On pèse les ingrédients non explosifs : oxyde cuivrique, aluminium et poudre de verre et on les introduit dans un mélangeur rotatif où ils sont brassés jusqu'à homogénéité. On les transvase ensuite dans un malaxeur planétaire pour compositions humides, on ajoute la quantité d'eau nécessaire puis on verse par dessus le diazodinitrophénol et le tétrazène préalablement pesés et enfin une solution aqueuse de gomme arabique jouant le rôle de liant. Les différents constituants pulvérulents sont généralement utilisés avec une granulométrie moyenne inférieure à environ 250 µm. On malaxe pendant le temps nécessaire. La composition est alors prête à l'emploi, elle renferme les pourcentages en poids sec suivants : Diazodinitrophénol 29,8 % Tétrazène 19,8 % Oxyde cuivrique 29,8 % Aluminium en poudre 9,8 % Poudre de verre 9,8 % Gomme arabique 1,0 % The non-explosive ingredients are weighed: cupric oxide, aluminum and glass powder and are introduced into a rotary mixer where they are stirred until homogeneous. They are then transferred to a planetary mixer for wet compositions, the necessary amount of water is added, then the diazodinitrophenol and tetrazene previously weighed are poured in and finally an aqueous solution of gum arabic acting as a binder. The various pulverulent constituents are generally used with an average particle size of less than approximately 250 μm. We mix for the necessary time. The composition is then ready for use, it contains the following percentages by dry weight: Diazodinitrophenol 29.8% Tetrazene 19.8% Cupric oxide 29.8% Aluminum powder 9.8% Glass powder 9.8% Gum arabic 1.0%

Cette composition est ensuite distribuée par tartinage selon la méthode classique dans des alvéoles d'amorce de diamètre 4,45 mm de façon à obtenir des charges de 18 ± 2 mg par amorce. On met en place à l'aide d'un poinçon plat un disque de papier puis on sèche les amorces et on comprime selon la méthode classique avec une force pressante de 150 daN sur chaque amorce. Après vernissage on met en place l'enclumette et on termine le séchage. Ces amorces sont ensuite testées en sensibilité sur un montage de tir pour amorces :
Percuteur à pointe arrondie 0̸ 2 mm
Bille de 55 g
Hauteur de chute 220 mm
Résultat : sur 50 charges d'amorçage testées, toutes fonctionnentThis composition is then distributed by spreading according to the conventional method in primer cells with a diameter of 4.45 mm so as to obtain charges of 18 ± 2 mg per primer. Using a flat punch, place a paper disc, then dry the primers and compresses according to the conventional method with a pressing force of 150 daN on each primer. After varnishing, the anvil is put in place and the drying is finished. These primers are then tested in sensitivity on a firing assembly for primers:
0̸ 2 mm round point striker
55 g ball
Fall height 220 mm
Result: out of 50 priming charges tested, all work

On monte également des amorces sur étuis de calibre .38sp qu'on teste sur un mouton de chute avec la même bille. La hauteur moyenne de fonctionnement H obtenue est de 140 mm, avec un écart-type estimé S de 22 mm, ce qui donne un H+5S de 250 mm et un H-2S de 96 mm.Primers are also mounted on .38sp caliber cases which are tested on a drop sheep with the same ball. The average operating height H obtained is 140 mm, with an estimated standard deviation S of 22 mm, which gives an H + 5S of 250 mm and an H-2S of 96 mm.

Des cartouches de .38sp sont confectionnées avec les amorces ci-dessus, 430 mg de poudre BA9 et des balles semi-blindées tronquées. Elles sont ensuite tirées au pistolet Smith et Wesson mle 58G. Elles donnent une vitesse initiale de 300 ± 5 m/s, ce qui est parfaitement correct..38sp cartridges are made with the above primers, 430 mg of BA9 powder and truncated semi-armored bullets. They are then drawn with a Smith and Wesson mle 58G pistol. They give an initial speed of 300 ± 5 m / s, which is perfectly correct.

EXEMPLE 2EXAMPLE 2

On prépare de la même manière que précédemment une composition selon la seconde variante de l'invention contenant : Dinitrobenzofuroxanne de potassium 44,8 % Diazodinitrophénol 14,8 % Oxyde cuivrique 19,8 % Fer en poudre 9,8 % Poudre de verre 9,8 % Gomme arabique 1,0 % A composition according to the second variant of the invention is prepared in the same manner as above, containing: Potassium dinitrobenzofuroxan 44.8% Diazodinitrophenol 14.8% Cupric oxide 19.8% Powdered iron 9.8% Glass powder 9.8% Gum arabic 1.0%

Cette composition est distribuée par tartinage dans des étuis pour percussion annulaire de calibre .22 ou 6 mm ou 9 mm ou autre et répartie par compression ou turbinage ou tout autre moyen mécanique, dans le bourrelet de ceux-ci. Ces étuis sont testés pour leur sensibilité à la percussion : la chute d'une bille de 111,7 g sur le percuteur à partir d'une hauteur de 200 mm provoque un fonctionnement certain, ce qui est considéré comme satisfaisant pour ce type de munitions.This composition is distributed by spreading in cases for annular percussion of .22 or 6 mm or 9 mm caliber or other and distributed by compression or turbination or any other mechanical means, in the bead thereof. These cases are tested for their sensitivity to percussion: the fall of a 111.7 g ball on the striker from a height of 200 mm causes certain operation, which is considered satisfactory for this type of ammunition .

Claims (12)

1/ Charges d'amorçage à percussion centrale ou annulaire, exemptes de métal toxique, du type comprenant au moins un explosif primaire, un agent oxydant, un agent réducteur et une poudre abrasive inerte, caractérisées en ce que ledit agent oxydant contient de l'oxyde cuivrique.1 / Priming charges with central or annular percussion, free from toxic metal, of the type comprising at least one primary explosive, an oxidizing agent, a reducing agent and an inert abrasive powder, characterized in that said oxidizing agent contains cupric oxide. 2/ Charges d'amorçage à percussion selon la revendication 1, caractérisées en ce qu'elles répondent à la composition pondérale suivante :
10 à 40 % de diazodinitrophénol ;
10 à 60 % d'un explosif d'appoint sensible au choc ;
10 à 40 % d'oxyde cuivrique ;
5 à 20 % d'un agent réducteur pulvérulent ;
5 à 25 % d'une poudre abrasive inerte, et
0 à 5 % d'un liant.2 / Percussion initiation charges according to claim 1, characterized in that they correspond to the following weight composition:
10 to 40% diazodinitrophenol;
10 to 60% of a shock-sensitive booster explosive;
10 to 40% cupric oxide;
5 to 20% of a pulverulent reducing agent;
5 to 25% of an inert abrasive powder, and
0 to 5% of a binder. 3/ Charges d'amorçage selon la revendication 2, caractérisées et ce que l'explosif d'appoint sensible au choc est constitué par du tétrazène.3 / Priming charges according to claim 2, characterized and that the auxiliary explosive sensitive to shock consists of tetrazene. 4/ Charges d'amorçage selon la revendication 2, caractérisées en ce que l'explosif d'appoint sensible au choc est constitué par un sel de dinitrobenzofuroxanne, en particulier le sel de potassium.4 / Priming charges according to claim 2, characterized in that the extra explosive sensitive to shock consists of a dinitrobenzofuroxane salt, in particular the potassium salt. 5/ Charges d'amorçage selon l'une des revendications 1 à 3, caractérisées en ce qu'elles contiennent un agent oxydant additionnel, choisi parmi l'oxyde ferrique, les salycilates métalliques, l'acide ascorbique, les peroxydes minéraux ou organiques, ainsi que leurs mélanges.5 / Priming charges according to one of claims 1 to 3, characterized in that they contain an additional oxidizing agent, chosen from ferric oxide, metallic salycilates, ascorbic acid, mineral or organic peroxides, as well as their mixtures. 6/ Charges d'amorçage selon l'une des revendications 1 à 5, caractérisées en ce que l'agent réducteur pulvérulent est choisi parmi l'aluminium, le fer, le zinc, le magnésium ainsi que leurs mélanges.6 / Priming charges according to one of claims 1 to 5, characterized in that the pulverulent reducing agent is chosen from aluminum, iron, zinc, magnesium and their mixtures. 7/ Charges d'amorçage selon l'une des revendications 1 à 6, caractérisées en ce que la poudre abrasive inerte est constituée par de la poudre de verre.7 / Priming charges according to one of claims 1 to 6, characterized in that the inert abrasive powder consists of glass powder. 8/ Charges d'amorçage selon l'une des revendications 1 à 5, caractérisées en ce que l'agent réducteur et/ou la poudre abrasive inerte est à base de siliciure de calcium.8 / Priming charges according to one of claims 1 to 5, characterized in that the reducing agent and / or the inert abrasive powder is based on calcium silicide. 9/ Charges d'amorçage selon l'une des revendications 1 à 3, caractérisées en ce qu'elles répondent à la composition pondérale suivante :
20 à 40 % de diazodinitrophénol;
10 à 30 % de tétrazène;
20 à 40 % d'oxyde cuivrique;
5 à 20 % d'aluminium en poudre;
5 à 20 % de poudre de verre;
0 à 5 % de liant.9 / Priming charges according to one of claims 1 to 3, characterized in that they correspond to the following weight composition:
20 to 40% diazodinitrophenol;
10 to 30% tetrazene;
20 to 40% cupric oxide;
5 to 20% aluminum powder;
5 to 20% glass powder;
0 to 5% of binder. 10/ Charges d'amorçage selon l'une des revendications 2 et 4, caractérisées en ce qu'elles répondent à la composition pondérale suivante :
5 à 25 % de diazodinitrophénol;
35 à 55 % de dinitrobenzofuroxanne de potassium;
10 à 30 % d'oxyde cuivrique;
5 à 20 % de fer en poudre;
5 à 20 % de poudre de verre, et
0 à 5 % de liant.10 / Priming charges according to one of claims 2 and 4, characterized in that they correspond to the following weight composition:
5 to 25% diazodinitrophenol;
35 to 55% of potassium dinitrobenzofuroxane;
10 to 30% cupric oxide;
5 to 20% iron powder;
5 to 20% glass powder, and
0 to 5% of binder. 11/ Procédé de fabrication de charges d'amorçage selon l'une des revendications 1 à 10, caractérisé en ce que l'on réalise les étapes successives suivantes :
* on mélange à sec l'oxyde cuivrique, le ou les agent(s) réducteur(s) et la poudre abrasive ;
* on ajoute à ce mélange l'explosif primaire, notamment le diazodinitrophénol et éventuellement l'explosif d'appoint, et
* on homogénéise le mélange ainsi obtenu.11 / A method of manufacturing priming charges according to one of claims 1 to 10, characterized in that the following successive steps are carried out:
* the copper oxide, the reducing agent (s) and the abrasive powder are dry mixed;
* the primary explosive, in particular diazodinitrophenol and possibly the additional explosive, is added to this mixture, and
* the mixture thus obtained is homogenized. 12/ Procédé selon la revendication 11, caractérisé en ce qu'en plus du ou des explosif(s), on ajoute une solution de liant.12 / A method according to claim 11, characterized in that in addition to the explosive (s), a binder solution is added.
EP89400720A 1988-03-15 1989-03-15 Primer charges and method of manufacture thereof Expired - Lifetime EP0334725B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400720T ATE85789T1 (en) 1988-03-15 1989-03-15 IGNITION CHARGES AND PROCESSES FOR THEIR MANUFACTURE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803328 1988-03-15
FR8803328A FR2628735B1 (en) 1988-03-15 1988-03-15 PERCUSSION PRIMER LOADS AND THEIR MANUFACTURING METHOD

Publications (2)

Publication Number Publication Date
EP0334725A1 true EP0334725A1 (en) 1989-09-27
EP0334725B1 EP0334725B1 (en) 1993-02-17

Family

ID=9364268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400720A Expired - Lifetime EP0334725B1 (en) 1988-03-15 1989-03-15 Primer charges and method of manufacture thereof

Country Status (5)

Country Link
EP (1) EP0334725B1 (en)
AT (1) ATE85789T1 (en)
DE (1) DE68904921T2 (en)
ES (1) ES2054042T3 (en)
FR (1) FR2628735B1 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440873A2 (en) * 1990-01-10 1991-08-14 Blount, Inc. Improved primer composition
FR2693721A1 (en) * 1992-07-20 1994-01-21 Ncs Pyrotechnie Technologies Ring percussion firing load and method of manufacturing the same.
EP0699646A1 (en) 1994-07-15 1996-03-06 EUROPA METALLI - SEZIONE DIFESA SE.DI. S.p.A Priming mixture containing no toxic materials, and cartridge percussion primer employing such a mixture
EP0737174A1 (en) * 1993-12-01 1996-10-16 Olin Corporation Lead-free priming mixture for percussion primer
EP0828698A2 (en) * 1995-05-26 1998-03-18 Federal-Hoffman, Inc., D.B.A. Federal Cartridge Co. Improved non-toxic primer
GB2329380A (en) * 1997-09-13 1999-03-24 Royal Ordnance Plc Priming composition
EP1030159A1 (en) * 1999-02-18 2000-08-23 Livbag SNC Electro-pyrotechnical igniter with augmented ignition safety
WO2000066517A1 (en) * 1999-04-28 2000-11-09 Hirtenberger Aktiengesellschaft Ignition mixture
US6599380B2 (en) * 2000-06-07 2003-07-29 Trw Airbag Systems Gmbh & Co. Kg Guanidine-thermite igniter composition for use in gas generators
US6679960B2 (en) * 2001-04-25 2004-01-20 Lockheed Martin Corporation Energy dense explosives
WO2008100252A2 (en) * 2007-02-09 2008-08-21 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
WO2009102338A1 (en) * 2008-02-11 2009-08-20 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
JP2011121858A (en) * 2009-11-16 2011-06-23 Nippon Koki Co Ltd Priming powder composition for detonator
US8202377B2 (en) 2007-02-09 2012-06-19 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8206522B2 (en) 2010-03-31 2012-06-26 Alliant Techsystems Inc. Non-toxic, heavy-metal free sensitized explosive percussion primers and methods of preparing the same
US8460486B1 (en) 2005-03-30 2013-06-11 Alliant Techsystems Inc. Percussion primer composition and systems incorporating same
RU2542297C2 (en) * 2012-10-01 2015-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Percussion charge
US10352671B1 (en) 2017-04-07 2019-07-16 The United States Of America As Represented By The Secretary Of The Army Automated primer manufacturing machine and process

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US8540828B2 (en) 2008-08-19 2013-09-24 Alliant Techsystems Inc. Nontoxic, noncorrosive phosphorus-based primer compositions and an ordnance element including the same
US7857921B2 (en) 2006-03-02 2010-12-28 Alliant Techsystems Inc. Nontoxic, noncorrosive phosphorus-based primer compositions
US8641842B2 (en) 2011-08-31 2014-02-04 Alliant Techsystems Inc. Propellant compositions including stabilized red phosphorus, a method of forming same, and an ordnance element including the same
DE102010036950B4 (en) 2010-08-11 2014-04-03 Nammo Germany Gmbh Explosive metal complexes, their preparation and use, as well as detonators
CN108127619A (en) * 2018-02-05 2018-06-08 福建海峡科化股份有限公司 A kind of non-shell pneuamtic nail bullet and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009556A (en) * 1931-11-06 1935-07-30 Winchester Repeating Arms Co Priming mixture
US2708623A (en) * 1951-12-29 1955-05-17 Olin Mathieson Explosive compound, process of making same and a composition thereof
US3423259A (en) * 1966-03-28 1969-01-21 Olin Mathieson Ammunition priming composition of dry particulate ingredients with karaya gum binder
GB1210604A (en) * 1967-02-22 1970-10-28 Republic Of France Improvements in or relating to the preparation of salts of dinitrobenzofuroxane
US3611939A (en) * 1962-11-29 1971-10-12 Hans Stadler Primer
US4675059A (en) * 1986-02-27 1987-06-23 Olin Corporation Non-toxic, non-corrosive priming mix

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009556A (en) * 1931-11-06 1935-07-30 Winchester Repeating Arms Co Priming mixture
US2708623A (en) * 1951-12-29 1955-05-17 Olin Mathieson Explosive compound, process of making same and a composition thereof
US3611939A (en) * 1962-11-29 1971-10-12 Hans Stadler Primer
US3423259A (en) * 1966-03-28 1969-01-21 Olin Mathieson Ammunition priming composition of dry particulate ingredients with karaya gum binder
GB1210604A (en) * 1967-02-22 1970-10-28 Republic Of France Improvements in or relating to the preparation of salts of dinitrobenzofuroxane
US4675059A (en) * 1986-02-27 1987-06-23 Olin Corporation Non-toxic, non-corrosive priming mix

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440873A2 (en) * 1990-01-10 1991-08-14 Blount, Inc. Improved primer composition
EP0440873A3 (en) * 1990-01-10 1991-12-11 Blount, Inc. Improved primer composition
FR2693721A1 (en) * 1992-07-20 1994-01-21 Ncs Pyrotechnie Technologies Ring percussion firing load and method of manufacturing the same.
EP0580486A1 (en) * 1992-07-20 1994-01-26 Ncs Pyrotechnie Et Technologies Rimfire primer and process for the manufacture thereof
US5353707A (en) * 1992-07-20 1994-10-11 Ncs Pyrotechnie Et Technologies Priming charge with annular percussion and process for its manufacture
EP0737174A1 (en) * 1993-12-01 1996-10-16 Olin Corporation Lead-free priming mixture for percussion primer
EP0737174A4 (en) * 1993-12-01 1997-04-16 Olin Corp Lead-free priming mixture for percussion primer
EP0699646A1 (en) 1994-07-15 1996-03-06 EUROPA METALLI - SEZIONE DIFESA SE.DI. S.p.A Priming mixture containing no toxic materials, and cartridge percussion primer employing such a mixture
EP0828698A2 (en) * 1995-05-26 1998-03-18 Federal-Hoffman, Inc., D.B.A. Federal Cartridge Co. Improved non-toxic primer
EP0828698A4 (en) * 1995-05-26 1998-04-01 Federal Hoffmann Inc
GB2329380A (en) * 1997-09-13 1999-03-24 Royal Ordnance Plc Priming composition
GB2329380B (en) * 1997-09-13 1999-08-18 Royal Ordnance Plc Priming composition
EP1030159A1 (en) * 1999-02-18 2000-08-23 Livbag SNC Electro-pyrotechnical igniter with augmented ignition safety
FR2790078A1 (en) * 1999-02-18 2000-08-25 Livbag Snc ELECTROPYROTECHNIC IGNITER WITH ENHANCED IGNITION SAFETY
US6289813B1 (en) 1999-02-18 2001-09-18 Livbag Snc Electropyrotechnic igniter with enhanced ignition reliability
WO2000066517A1 (en) * 1999-04-28 2000-11-09 Hirtenberger Aktiengesellschaft Ignition mixture
US6599380B2 (en) * 2000-06-07 2003-07-29 Trw Airbag Systems Gmbh & Co. Kg Guanidine-thermite igniter composition for use in gas generators
US6679960B2 (en) * 2001-04-25 2004-01-20 Lockheed Martin Corporation Energy dense explosives
US8460486B1 (en) 2005-03-30 2013-06-11 Alliant Techsystems Inc. Percussion primer composition and systems incorporating same
US8454769B2 (en) 2007-02-09 2013-06-04 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8192568B2 (en) 2007-02-09 2012-06-05 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8202377B2 (en) 2007-02-09 2012-06-19 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8454770B1 (en) 2007-02-09 2013-06-04 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
WO2008100252A3 (en) * 2007-02-09 2009-02-26 Alliant Techsystems Inc Non-toxic percussion primers and methods of preparing the same
WO2008100252A2 (en) * 2007-02-09 2008-08-21 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
EP2602238A3 (en) * 2007-02-09 2014-11-26 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
WO2009102338A1 (en) * 2008-02-11 2009-08-20 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
JP2011121858A (en) * 2009-11-16 2011-06-23 Nippon Koki Co Ltd Priming powder composition for detonator
US8206522B2 (en) 2010-03-31 2012-06-26 Alliant Techsystems Inc. Non-toxic, heavy-metal free sensitized explosive percussion primers and methods of preparing the same
US8470107B2 (en) 2010-03-31 2013-06-25 Alliant Techsystems Inc. Non-toxic, heavy-metal free explosive percussion primers and methods of preparing the same
RU2542297C2 (en) * 2012-10-01 2015-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Percussion charge
US10352671B1 (en) 2017-04-07 2019-07-16 The United States Of America As Represented By The Secretary Of The Army Automated primer manufacturing machine and process

Also Published As

Publication number Publication date
DE68904921D1 (en) 1993-03-25
ES2054042T3 (en) 1994-08-01
FR2628735B1 (en) 1990-08-24
ATE85789T1 (en) 1993-03-15
EP0334725B1 (en) 1993-02-17
DE68904921T2 (en) 1993-07-08
FR2628735A1 (en) 1989-09-22

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