EP1319641B1 - Verfahren zur Herstellung eines elektro-pyrotechnischen Zünders unter Verwendung eines wässrigen Klebstoffes - Google Patents

Verfahren zur Herstellung eines elektro-pyrotechnischen Zünders unter Verwendung eines wässrigen Klebstoffes Download PDF

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Publication number
EP1319641B1
EP1319641B1 EP02293070A EP02293070A EP1319641B1 EP 1319641 B1 EP1319641 B1 EP 1319641B1 EP 02293070 A EP02293070 A EP 02293070A EP 02293070 A EP02293070 A EP 02293070A EP 1319641 B1 EP1319641 B1 EP 1319641B1
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Prior art keywords
process according
pyrotechnic
initiator
weight
explosive
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EP02293070A
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English (en)
French (fr)
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EP1319641A2 (de
EP1319641A3 (de
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Jean-René Duguet
Jérôme Pillaert
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Livbag SAS
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Livbag SAS
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/12—Primers; Detonators electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/195—Manufacture
    • 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
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • C06C7/02—Manufacture; Packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/124—Bridge initiators characterised by the configuration or material of the bridge

Definitions

  • the present invention relates to the technical field of electro-pyrotechnic initiators. More specifically, the invention relates to a method for producing an electro-pyrotechnic initiator.
  • This manufacturing process adapts to any type of initiator. They are either detonating initiators, also called detonators, or initiators type igniters, for the ignition of propellant powder or gas generating substance. In the latter case, the most common application is that of igniters for safety devices intended to protect the occupants of a motor vehicle.
  • An electro-pyrotechnic initiator consists of a heating resistive element and a thermosensitive substance.
  • the resistive element may be in the form of a filament, a small flat element and very thin deposited on a printed circuit support or a resistive bridge or semiconductor in thin layers.
  • the structure of the initiator must include very robust elements, such as a compression ring for example.
  • the assembly process of the initiator requires the implementation of important means for metering and compressing the powdery substance.
  • a distribution hopper and a hydraulic press are generally used. Such a process is generally carried out under a pressure of the order of 1000 bar. Such a method, often used in industry, therefore requires significant means of protecting personnel against the risks inherent in the implementation and compression of dry explosive materials. Moreover, during compression, the resistive element can be damaged.
  • thermosensitive substance is then deposited in the form of a compact paint and adherent to the support.
  • a first embodiment is to use solvents.
  • the patent FR 2704944 and his correspondent US 5544585 describe such an embodiment.
  • the explosive lacquer described in this patent consists of a primary explosive or a thermosensitive oxidizing-reducing mixture added with 2 to 15% of film-forming binder, previously dissolved in a solvent. The lacquer is deposited on the resistive element and the solvent is evaporated.
  • the explosive lacquer comprises a pyrotechnic material in the form of particles and a binder consisting of a particulate polymeric resin.
  • the lacquer may further comprise a solvent, ethyl alcohol.
  • the lacquer is first deposited on the element resistive then heated at a first temperature, of the order of 100 ° C, to expel the solvent and then at a second temperature of the order of 150 ° C, to agglomerate the particles of the binder and to bind the lacquer to the resistive element.
  • thermosensitive substance Another known embodiment for bonding the thermosensitive substance to the resistive element is in situ polymerization.
  • the patent FR 2781878 describes such an embodiment.
  • the heat-sensitive substance comprises from 40 to 60% by weight of pulverulent pyrotechnic substance suspended in 60 to 40% by weight of inert binder capable of curing by polymerization.
  • the thermosensitive substance is deposited on the resistive element and the polymerization is obtained by heating or by radiation.
  • This embodiment requires in practice high levels of binder. This therefore limits the proportion of pyrotechnic material in the thermosensitive substance, increases its dispersion, and thereby decreases the sensitivity of the initiator.
  • the present invention relates to such a method.
  • the invention relates to a method for producing an electro-pyrotechnic initiator comprising a pyrotechnic lacquer initiated by a resistive heating element, characterized in that said pyrotechnic lacquer is obtained by depositing on the resistive element, an aqueous adhesive constituted a dispersion of an explosive substance and additives in an aqueous suspension based on a copolymer selected from ethylene / vinyl acetate copolymers and vinyl acetate / ethylene acetate / ethylene copolymers, followed by drying of said aqueous adhesive at a temperature between 55 ° C and 75 ° C.
  • lacquer the solid element obtained by evaporation of the water contained in the drop of aqueous adhesive deposited on the initiator.
  • This lacquer is also sometimes called pearl ignition.
  • the invention has the advantage of not using volatile and flammable solvents. Indeed, only water is used. Contrary to the prejudices indicated in the patent FR 2781878 , the water is easily removed, the drying step is not long and it does not degrade the performance of the thermosensitive substance.
  • Another advantage of the invention is to achieve a dispersion of the explosive substance in an aqueous suspension based on a copolymer. This makes it possible to numb the explosive substance and to handle it safely in the liquid state.
  • the aqueous adhesive is deposited on the liquid resistive element in the form of a calibrated drop, using a lacquerer comprising a pneumatic doser.
  • the drop of aqueous adhesive is then dried at a temperature of between 55 ° C. and 75 ° C., preferably at 60 ° C.
  • the heating at a temperature below 80 ° C avoids the formation of bubbles and therefore poor contact with the resistive element.
  • the drying is carried out according to a drying mode common in industry such as infra-red radiation, hot air pulsed or induction.
  • a preferred drying mode is infra-red radiation.
  • the explosive substance used in the composition of the aqueous adhesive is chosen from the group consisting of primary explosives and oxidizing-reducing mixtures.
  • the primary explosive is a dinitrobenzofuroxane salt and, more preferably, the primary explosive is potassium dinitrobenzofuroxanate.
  • the explosive substance is a mixture of zirconium and potassium perchlorate.
  • the explosive substance used in the composition may be lead-free, which allows for aqueous adhesives compatible with the environment.
  • the content of explosive substance of the pyrotechnic lacquer after drying is between 65% and 95% by weight relative to the total weight of the pyrotechnic lacquer.
  • the water content of the aqueous adhesive before drying is between 55% and 70% by weight relative to the total weight of the aqueous adhesive. This production method therefore allows to have, before drying, a significant proportion of water, which facilitates the implementation and after drying, a large proportion of explosive substance, which makes the initiator very reactive.
  • the aqueous suspension based on copolymer is obtained by emulsification of ethylene / vinyl acetate copolymer or vinyl acetate / ethylene acetate / ethylene in the presence of surfactant.
  • the preferred surfactants are anionic surfactants and polyvinyl alcohol.
  • the amount of surfactant used is between 0.1% and 2% by weight relative to the weight of the aqueous suspension based on copolymer.
  • the aqueous suspension based on copolymer further comprises a plasticizer.
  • This plasticizer is chosen from phthalates.
  • a preferred plasticizer is dibutyl phthalate. This compound makes it possible to improve the adhesion of the adhesive on the resistive element and to adjust the hardness of the adhesive.
  • the amount of plasticizer is between 0% and 20% by weight relative to the weight of the aqueous suspension based on copolymer.
  • the copolymer is an ethylene / vinyl acetate copolymer and the proportion of ethylene is between 10 and 30% by weight relative to the total weight of the ethylene / vinyl acetate copolymer.
  • the amount of copolymer is between 50% and 60% by weight relative to the total weight of the aqueous suspension based on said copolymer.
  • the aqueous adhesive further comprises additives such as a thickening agent and an RX marker.
  • the thickening agent is based on modified cellulose, this makes it possible to adjust the viscosity of the adhesive, between 6.5 and 9 Pa.s, to the deposition process. Hydroxylpropylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose and carboxymethylhydroxyethylcellulose may be mentioned as thickeners.
  • the amount of thickening agent is between 0.5 and 2.5% by weight relative to the total weight of the aqueous glue before drying.
  • the glue may also contain an RX marker. Its role is to make the glue opaque to X-rays in the case where the other constituents of the aqueous glue, and in particular the explosive substance, do not contain heavy metals.
  • the marker RX is constituted by a metal powder or a metal salt, said metal having to sufficiently absorb the X-rays, while being compatible with the environment. It is preferably selected from the group consisting of tungsten, zirconium, bismuth or silver. This marker therefore makes it possible to control the initiator at the level of its manufacturing process.
  • the fundamental originality of the invention lies in the fact of using an aqueous adhesive comprising an explosive substance and a copolymer suspended in water.
  • the glue is deposited using a lacquerer comprising a pneumatic metering device, in the form of a drop calibrated on the heating resistive element and the water is then evaporated.
  • the evaporation of the water and the nature of the copolymer make it possible, as shown by the tests carried out, to obtain a very good adhesion of the adhesive to the resistive element.
  • the surfactant is chosen from surfactants anionic and polyvinyl alcohol.
  • the additives contain a thickening agent and an RX marker.
  • the thickening agent makes it possible to adjust the viscosity of the glue, it is based on modified cellulose.
  • the RX marker makes the pyrotechnic lacquer X-ray opaque. It is a metal powder or a metal salt, the metal being selected from the group consisting of tungsten, zirconium, bismuth or silver.
  • the explosive substance is selected from the group consisting of primary explosives and oxidizing-reducing mixtures.
  • a preferred primary explosive is a dinitrobenzofuroxane salt, and more preferably potassium dinitrobenzofuroxanate, and a preferred oxidizing-reducing mixture is zirconium / potassium perchlorate.
  • the resistive heating element is a cylindrical filament, a bridge directly photograved on a printed circuit support or a thin-layer bridge surface-mounted on a printed circuit support.
  • the explosive substance is a primary explosive and the resistive element is a semiconductor bridge often designated by the abbreviation SCB from its Anglo-Saxon designation "semi conductor bridge”.
  • the figure 1 represents, in section, an electro-pyrotechnic initiator produced according to the object method of the invention, wherein the resistive element is surface mounted.
  • the figure 2 is a diagram of the device for performing the method object of the invention.
  • this electro-pyrotechnic initiator 1 is made from a glass / metal feedthrough comprising a metal liner 9 and an insulating element 2 carrying the two electrodes 3, 4.
  • Each of these two electrodes 3, 4 presents, on the one hand, an upper end fixed by welding to a printed circuit board 5 having a heating resistive element 11 of the CMS type ("surface-mounted component"), and on the other hand, a lower end intended to be connected to a tubular plug corresponding.
  • the printed circuit 5 is itself attached to the insulating element 2.
  • a pyrotechnic lacquer 6 is bonded to the printed circuit 5 and the resistive element 11 and is surmounted by a metal cap 7 enclosing a pyrotechnic reinforcing composition 8, this cap metal 7 being welded to the cylindrical metal liner 9 of the glass / metal feedthrough.
  • thermoplastic resin partially coats the electrodes 3, 4 and ensures, with the metal cap 7, the sealing of the initiator 1.
  • Electro-pyrotechnic initiators 1 not yet assembled with the metal cap 7 and the reinforcing pyrotechnic composition 8 are placed in a vehicle 13.
  • This vehicle 13 contains 10 rows of 20 igniters.
  • the vehicle 13 is placed on a conveyor belt 14.Only placed in a lacquer 15, shown in section, 20g of aqueous glue.
  • the aqueous adhesive consists of 2.5% by weight of ethylene vinyl polyacetate and surfactant, 29% by weight of potassium dinitrobenzofuroxanate, 8% by weight of tungsten, 59.5% by weight of water and adds 1% by weight of hydroxypropyl cellulose to adjust the viscosity to about 8 Pa.s.
  • the lacquer 15 is constituted by a rotary stirrer 16. This rotary stirrer 16 is set in motion with a speed of rotation of 35 ⁇ 5 revolutions per minute in order to keep the elements of the adhesive in suspension.
  • the vehicle 20 containing the igniters whose resistive element 11 is covered with a drop of aqueous glue is then fed by the conveyor belt 14 into an infrared radiation oven 21.
  • the oven temperature is 60 ° C and the residence time of the igniters in the oven is 30 minutes.
  • the vehicle 22 containing the dried igniters that is to say covered with a drop of pyrotechnic lacquer 6 with a mass of 9 mg ⁇ 3 mg, is then recovered at the outlet of the oven.
  • the pyrotechnic lacquer After drying, the pyrotechnic lacquer consists of 72% by weight of potassium dinitrobenzofuroxanate, 6% by weight of ethylene vinylpolyacetate and surfactant, 2% by weight of hydroxypropyl cellulose and 20% by weight of tungsten powder .
  • composition A * aqueous adhesive according to the invention, before drying:
  • ethylene vinylpolyacetate marketed by Labord SA under the name 239M.
  • pyrotechnic lacquer according to the invention, after drying: - potassium dinitrobenzofuroxanate 72.0 ⁇ 1.0% - ethylene vinyl polyacetate (EVA) + polyvinyl alcohol 6.0 ⁇ 0.5% - hydroxypropyl cellulose 2.0 ⁇ 0.05% - tungsten powder 20.0 ⁇ 1.0%
  • Example 1 Adhesion of the pyrotechnic lacquer on the resistive element.
  • the first test consists in subjecting the initiator to an acceleration greater than 20 000 g, ie greater than 196 000 m / s 2 in the positive direction of the axis of the initiator perpendicular to the gluing plane of the pyrotechnic lacquer.
  • a second test consists in testing the adhesion of a non-active pyrotechnic lacquer, that is to say in which the explosive substance has been replaced, for reasons of safety, by an inert substance, on a metal support.
  • a non-active pyrotechnic lacquer that is to say in which the explosive substance has been replaced, for reasons of safety, by an inert substance, on a metal support.
  • two test pieces are glued with this non-active pyrotechnic lacquer, a tensile test is carried out on these two test pieces and the maximum stress that the pyrotechnic lacquer can withstand is measured.
  • composition B Composition B or modified for the 2 nd test
  • the first test shows that igniters comprising an initiator produced according to the method that is the subject of the invention can withstand up to 6 times 20,000 g of acceleration, that is to say up to 6 times an acceleration of 196,000 m. / s 2 .
  • composition A thus has a better adhesion to the resistive element.
  • the maximum stress measured to obtain the separation of the two specimens bonded by the ignition bead of composition A is 8.5 times greater to that measured to obtain the separation of the two glued specimens by the ignition bead composition B, that is to say according to the state of the art.
  • This test consists of conditioning the initiator at -40 ° C for 2 hours and then placing it in a pressure bomb and subjecting it to an electrical pulse with an amplitude of 1.2A for 2ms. The pressure generated by the initiator is then measured inside the bomb.
  • pressure onset time is the time required for a pressure of 0.2 ⁇ 10 5 Pa, or 0.2 bar, to be generated inside the pressure bomb.
  • composition A Initiators whose resistive element is covered with the pyrotechnic lacquer according to the invention give shorter operating times and more reproducible than the initiators according to the state of the art (composition B).
  • Example 3 Ability of the pyrotechnic lacquer to initiate the reinforcing charge of the electro-pyrotechnic initiator
  • the electro-pyrotechnic initiator previously described is used.
  • the reinforcing filler is physically separated from the body of the initiator.
  • the initiator comprising only the resistive element covered with the pyrotechnic lacquer and on the other hand the reinforcing charge. These two elements are placed at a calibrated distance from each other.
  • the initiator is subjected, at ambient temperature, to an electrical pulse with an amplitude of 1.2A for 2ms.
  • the pressure curve is recorded and the times corresponding to the first rise in pressure and the second rise in pressure are measured from the time to correspond to the beginning of the electric pulse.
  • the first increase in pressure is due to the combustion of the pyrotechnic lacquer and the second increase in pressure is due to the combustion of the reinforcing filler.
  • This test is carried out on new initiators and on aged initiators (accelerated aging of 400 hours at 107 ° C.).

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  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
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Claims (25)

  1. Verfahren zur Herstellung eines elektropyrotechnischen Zünders (1), umfassend einen pyrotechnischen Lack (6), der von einem Wärmewiderstandselement (11) gezündet wird, dadurch gekennzeichnet, dass der pyrotechnische Lack erhalten wird durch Ablegen auf dem Widerstandselement eines wässrigen Klebstoffes, der aus einer Dispersion einer explosiven Substanz und Additiven in einer wässrigen Suspension auf der Basis eines Copolymers gebildet ist, das aus den Copolymeren Ethylen/Vinylacetat und den Copolymeren Vinylacetat/Ethylenacetat/Ethylen ausgewählt ist, dann durch Trocknen des wässrigen Klebstoffes bei einer Temperatur zwischen 55°C und 75°C.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass das Trocknen des wässrigen Klebstoffes durch Infrarotbestrahlung durchgeführt wird.
  3. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass der wässrige Klebstoff liquid auf dem Widerstandselement in Form eines kalibrierten Tropfen abgelegt wird, mit Hilfe eines Lackierers (15), der einen pneumatischen Dosierer (18) umfasst.
  4. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die explosive Substanz aus der Gruppe gewählt wird, die aus primären Explosivstoffen und oxidierend-reduzierenden Mischungen gebildet ist.
  5. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, dass der primäre Explosivstoff ein Dinitrobenzofuroxansalz ist.
  6. Verfahren gemäß Anspruch 5, dadurch gekennzeichnet, dass der primäre Explosivstoff Kaliumdinitrobenzofuroxanat ist.
  7. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, dass die explosive Substanz eine Mischung aus Zirconium und Kaliumperchlorat ist.
  8. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass der Wassergehalt des wässrigen Klebstoffes vor dem Trocknen zwischen 55 und 70 Gew.% in Bezug zum Gewicht des wässrigen Klebstoffes beträgt.
  9. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass der Gehalt der explosiven Substanz des pyrotechnischen Lacks nach Trocknen zwischen 65 und 95 Gew.% in Bezug zum Gesamtgewicht des pyrotechnischen Lacks beträgt.
  10. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die Menge an Copolymer zwischen 50 und 60 Gew.% in Bezug zum Gesamtgewicht der wässrigen Suspension auf Copolymer-Basis beträgt.
  11. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die wässrige Suspension auf Copolymer-Basis außerdem ein Tensioaktiv enthält, das gewählt ist aus der Gruppe, die aus anionischen Tensioaktiven und Polyvinylalkohol gebildet ist.
  12. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die wässrige Suspension auf Copolymer-Basis außerdem einen Weichmacher enthält, der aus Phthalaten gewählt ist.
  13. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass der wässrige Klebstoff außerdem ein Verdickungsmittel auf der Basis modifizierter Zellulose enthält.
  14. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass der wässrige Klebstoff außerdem einen Metallstaub oder ein Metallsalz enthält, das für Röntgenstrahlen undurchdringlich ist.
  15. Verfahren gemäß Anspruch 14, dadurch gekennzeichnet, dass das Metall aus der Gruppe gewählt ist, die aus Wolfram, Zirconium, Bismut oder Silber gebildet ist.
  16. Elektropyrotechnischer Zünder (1) hergestellt gemäß Anspruch 1, umfassend einen pyrotechnischen Lack (6), der von einem Wärmewiderstandselement (11) gezündet wird, dadurch gekennzeichnet, dass der pyrotechnische Lack umfasst:
    - von 60 bis 95 Gew.% explosive Gewichtssubstanz,
    - von 5 bis 15 Gew.% Tensioaktiv und Copolymer Ethylen/Vinylacetat oder Vinylacetat/Ethylenacetat/Ethylen,
    - von 0 bis 25 Gew.% Additive.
  17. Elektropyrotechnischer Zünder (1) gemäß Anspruch 16, dadurch gekennzeichnet, dass die Additive ein Verdickungsmittel und einen RX-Marker enthalten.
  18. Elektropyrotechnischer Zünder (1) gemäß Anspruch 17, dadurch gekennzeichnet, dass das Verdickungsmittel auf Basis modifizierter Zellulose ist.
  19. Elektropyrotechnischer Zünder (1) gemäß Anspruch 17, dadurch gekennzeichnet, dass der RX-Marker ein Metallpulver oder ein Metallsalz ist, wobei das Metall aus der Gruppe gewählt ist, die aus Wolfram, Zirconium, Bismut oder Silber gebildet ist.
  20. Elektropyrotechnischer Zünder (1) gemäß Anspruch 16, dadurch gekennzeichnet, dass die explosive Substanz aus der Gruppe gewählt ist, die aus den primären Explosivstoffen und den oxidierend-reduzierenden Mischungen gebildet ist.
  21. Elektropyrotechnischer Zünder (1) gemäß Anspruch 20, dadurch gekennzeichnet, dass das Wärmewiderstandselement (11) ein zylindrisches Filament ist.
  22. Elektropyrotechnischer Zünder (1) gemäß Anspruch 20, dadurch gekennzeichnet, dass das Wärmewiderstandselement (11) eine direkt auf einen Träger einer gedruckten Leiterplatte photogravierte Brücke ist.
  23. Elektropyrotechnischer Zünder (1) gemäß Anspruch 20, dadurch gekennzeichnet, dass das Wärmewiderstandselement (11) eine Brücke mit dünnen Schichten ist, die auf der Oberfläche auf einem Träger einer gedruckten Leiterplatte angebracht ist.
  24. Elektropyrotechnischer Zünder (1) gemäß Anspruch 20, dadurch gekennzeichnet, dass die explosive Substanz ein primärer Explosivstoff ist.
  25. Elektropyrotechnischer Zünder (1) gemäß Anspruch 24, dadurch gekennzeichnet, dass das Wärmewiderstandselement (11) eine Halbleiterbrücke, genannt SCB, ist.
EP02293070A 2001-12-14 2002-12-12 Verfahren zur Herstellung eines elektro-pyrotechnischen Zünders unter Verwendung eines wässrigen Klebstoffes Expired - Lifetime EP1319641B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0116218A FR2833693B1 (fr) 2001-12-14 2001-12-14 Procede de realisation d'un initiateur electro-pyrotechnique par emploi d'une colle aqueuse
FR0116218 2001-12-14

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EP1319641A2 EP1319641A2 (de) 2003-06-18
EP1319641A3 EP1319641A3 (de) 2009-12-30
EP1319641B1 true EP1319641B1 (de) 2010-10-20

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US (1) US6823797B2 (de)
EP (1) EP1319641B1 (de)
JP (1) JP3860534B2 (de)
KR (1) KR100671728B1 (de)
AT (1) ATE485250T1 (de)
BR (1) BR0205261A (de)
CA (1) CA2413014C (de)
DE (1) DE60238027D1 (de)
FR (1) FR2833693B1 (de)
MX (1) MXPA02012212A (de)

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CN1969167A (zh) * 2004-04-16 2007-05-23 日本化药株式会社 点火器及具有该点火器的气体产生器
FR2877720B1 (fr) * 2004-11-05 2009-11-06 Davey Bickford Snc Procede de realisation d'une interface electropyrotechnique entre un pont electrothermique et une composition primaire au sein d'un initiateur, initiateur obtenu
EP2022770A1 (de) 2006-04-19 2009-02-11 Nipponkayaku Kabushikikaisha Sprengstoff, sprengstoff-formkörper und herstellungsverfahren dafür
DE102007017679A1 (de) * 2007-01-11 2008-07-17 Rheinmetall Waffe Munition Gmbh Anzündmittel
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CN104692984A (zh) * 2013-12-10 2015-06-10 北京北方邦杰科技发展有限公司 雷管自动点药系统
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CN104496734B (zh) * 2014-12-13 2016-08-17 西安近代化学研究所 一种非理想炸药爆热测量用标准物质造型粉的制备方法
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CA2413014C (fr) 2005-06-28
DE60238027D1 (de) 2010-12-02
US6823797B2 (en) 2004-11-30
MXPA02012212A (es) 2004-10-29
KR20030051316A (ko) 2003-06-25
JP3860534B2 (ja) 2006-12-20
EP1319641A2 (de) 2003-06-18
EP1319641A3 (de) 2009-12-30
CA2413014A1 (fr) 2003-06-14
KR100671728B1 (ko) 2007-01-22
BR0205261A (pt) 2004-07-20
FR2833693A1 (fr) 2003-06-20
FR2833693B1 (fr) 2004-03-12
ATE485250T1 (de) 2010-11-15
JP2003238285A (ja) 2003-08-27
US20030110971A1 (en) 2003-06-19

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