EP0334725A1 - Zündladungen und Verfahren zu ihrer Herstellung - Google Patents

Zündladungen und Verfahren zu ihrer Herstellung Download PDF

Info

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
Other languages
English (en)
French (fr)
Other versions
EP0334725B1 (de
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
Original Assignee
NCS Pyrotechnie et Technologies SAS
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 NCS Pyrotechnie et Technologies SAS filed Critical NCS Pyrotechnie et Technologies SAS
Priority to AT89400720T priority Critical patent/ATE85789T1/de
Publication of EP0334725A1 publication Critical patent/EP0334725A1/de
Application granted granted Critical
Publication of EP0334725B1 publication Critical patent/EP0334725B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 .

Landscapes

  • 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)
EP89400720A 1988-03-15 1989-03-15 Zündladungen und Verfahren zu ihrer Herstellung Expired - Lifetime EP0334725B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400720T ATE85789T1 (de) 1988-03-15 1989-03-15 Zuendladungen und verfahren zu ihrer herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803328 1988-03-15
FR8803328A FR2628735B1 (fr) 1988-03-15 1988-03-15 Charges d'amorcage a percussion et leur procede de fabrication

Publications (2)

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

Family

ID=9364268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400720A Expired - Lifetime EP0334725B1 (de) 1988-03-15 1989-03-15 Zündladungen und Verfahren zu ihrer Herstellung

Country Status (5)

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

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440873A2 (de) * 1990-01-10 1991-08-14 Blount, Inc. Verbesserte Zusammensetzung für Initialladung
FR2693721A1 (fr) * 1992-07-20 1994-01-21 Ncs Pyrotechnie Technologies Charge d'amorçage à percussion annulaire et son procédé de fabrication.
EP0699646A1 (de) 1994-07-15 1996-03-06 EUROPA METALLI - SEZIONE DIFESA SE.DI. S.p.A Nichtgiftige Materialien enthaltende, schlagempfindliche Zündmittelzusammensetzung und deren Verwendung für Perkussionszündsatzpatronen
EP0737174A1 (de) * 1993-12-01 1996-10-16 Olin Corporation Bleifreie zündmittelzusammensetzung für perkussionszündsätze
EP0828698A2 (de) * 1995-05-26 1998-03-18 Federal-Hoffman, Inc., D.B.A. Federal Cartridge Co. Nichtgiftige initialladung
GB2329380A (en) * 1997-09-13 1999-03-24 Royal Ordnance Plc Priming composition
EP1030159A1 (de) * 1999-02-18 2000-08-23 Livbag SNC Elektropyrotechnischer Zünder mit erhöhter Zündsicherheit
WO2000066517A1 (de) * 1999-04-28 2000-11-09 Hirtenberger Aktiengesellschaft Anzündmischung
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 (ja) * 2009-11-16 2011-06-23 Nippon Koki Co Ltd 雷管用起爆剤組成物
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 (ru) * 2012-10-01 2015-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Ударный капсюльный состав
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US7857921B2 (en) 2006-03-02 2010-12-28 Alliant Techsystems Inc. Nontoxic, noncorrosive phosphorus-based primer compositions
US8540828B2 (en) 2008-08-19 2013-09-24 Alliant Techsystems Inc. Nontoxic, noncorrosive phosphorus-based primer compositions and an ordnance element including the same
DE102010036950B4 (de) 2010-08-11 2014-04-03 Nammo Germany Gmbh Explosive Metallkomplexe, deren Herstellung und Verwendung, sowie Zündmittel
CN108127619A (zh) * 2018-02-05 2018-06-08 福建海峡科化股份有限公司 一种无壳射钉弹及其制备方法

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 (de) * 1990-01-10 1991-08-14 Blount, Inc. Verbesserte Zusammensetzung für Initialladung
EP0440873A3 (en) * 1990-01-10 1991-12-11 Blount, Inc. Improved primer composition
FR2693721A1 (fr) * 1992-07-20 1994-01-21 Ncs Pyrotechnie Technologies Charge d'amorçage à percussion annulaire et son procédé de fabrication.
EP0580486A1 (de) * 1992-07-20 1994-01-26 Ncs Pyrotechnie Et Technologies Initialladung für die Randfeuerzündung und Verfahren zu ihrer Herstellung
US5353707A (en) * 1992-07-20 1994-10-11 Ncs Pyrotechnie Et Technologies Priming charge with annular percussion and process for its manufacture
EP0737174A1 (de) * 1993-12-01 1996-10-16 Olin Corporation Bleifreie zündmittelzusammensetzung für perkussionszündsätze
EP0737174A4 (de) * 1993-12-01 1997-04-16 Olin Corp Bleifreie zündmittelzusammensetzung für perkussionszündsätze
EP0699646A1 (de) 1994-07-15 1996-03-06 EUROPA METALLI - SEZIONE DIFESA SE.DI. S.p.A Nichtgiftige Materialien enthaltende, schlagempfindliche Zündmittelzusammensetzung und deren Verwendung für Perkussionszündsatzpatronen
EP0828698A2 (de) * 1995-05-26 1998-03-18 Federal-Hoffman, Inc., D.B.A. Federal Cartridge Co. Nichtgiftige initialladung
EP0828698A4 (de) * 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 (de) * 1999-02-18 2000-08-23 Livbag SNC Elektropyrotechnischer Zünder mit erhöhter Zündsicherheit
FR2790078A1 (fr) * 1999-02-18 2000-08-25 Livbag Snc Allumeur electropyrotechnique a securite d'allumage renforcee
US6289813B1 (en) 1999-02-18 2001-09-18 Livbag Snc Electropyrotechnic igniter with enhanced ignition reliability
WO2000066517A1 (de) * 1999-04-28 2000-11-09 Hirtenberger Aktiengesellschaft Anzündmischung
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 (de) * 2007-02-09 2014-11-26 Alliant Techsystems Inc. Nicht- toxische Perkussionszünder und Verfahren zu ihrer Herstellung
WO2009102338A1 (en) * 2008-02-11 2009-08-20 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
JP2011121858A (ja) * 2009-11-16 2011-06-23 Nippon Koki Co Ltd 雷管用起爆剤組成物
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 (ru) * 2012-10-01 2015-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Ударный капсюльный состав
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
DE68904921T2 (de) 1993-07-08
FR2628735B1 (fr) 1990-08-24
ATE85789T1 (de) 1993-03-15
FR2628735A1 (fr) 1989-09-22
DE68904921D1 (de) 1993-03-25
EP0334725B1 (de) 1993-02-17
ES2054042T3 (es) 1994-08-01

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