US20020179209A1 - Lead-and barium-free propellant charges - Google Patents
Lead-and barium-free propellant charges Download PDFInfo
- Publication number
- US20020179209A1 US20020179209A1 US10/164,583 US16458302A US2002179209A1 US 20020179209 A1 US20020179209 A1 US 20020179209A1 US 16458302 A US16458302 A US 16458302A US 2002179209 A1 US2002179209 A1 US 2002179209A1
- Authority
- US
- United States
- Prior art keywords
- propellant charges
- charges according
- metal
- substances
- total mixture
- 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.)
- Abandoned
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
Definitions
- the subject of the invention is lead- and barium-free propellant charges with priming explosives mixed with oxygen-supplying substances.
- EP-0 129 081 B1 describes lead- and barium-free propellant charges composed of priming explosives mixed with zinc peroxide as the oxidant, said charges containing strontium salts of mono- and/or dinitrodihydroxydiazobenzene in amounts between 5 and 70 wt. % mixed with passivators as well as, in addition, tetrazine in amounts up to 30 wt. % and zinc peroxide in amounts between 10 and 70 wt. %, relative to the total mixture in each case, as priming explosives.
- Known propellant charges contain as priming explosives, compounds especially of lead that are derived from trinitropolyphenols, such as trinitrophenol, trinitrolresorcin, or hydrazoic acid.
- propellant charges are also known that contain the double salts of lead, for example hypophosphite nitrate. When these propellant charges burn, increased concentrations of lead and its compounds occur in the ambient air that reach the admissible limiting concentrations after only a small number of rounds. Solutions have already been proposed that consist of priming explosives that are free of heavy metals. Diazodinitrophenol has proven especially successful in this regard.
- the subject of the present invention therefore consists in improved lead- and barium-free propellant charges with priming explosives mixed with substances that supply oxygen.
- a first embodiment to solve the above problem therefore consists in lead- and barium-free propellant charges with priming explosives mixed with oxygen-supplying substances, characterized in that the priming explosives are selected from alkali metal and/or alkaline earth metal salts of dinitrobenzofuroxanes and the oxygen-supplying substances are chosen from metal peroxides, nitrates of ammonium, guanidine, aminoguanidine, triaminoguanidine, and dicyanodiamidine, and the elements sodium, potassium, magnesium, calcium, cerium, and/or multivalent metal oxides.
- the priming explosives are selected from alkali metal and/or alkaline earth metal salts of dinitrobenzofuroxanes and the oxygen-supplying substances are chosen from metal peroxides, nitrates of ammonium, guanidine, aminoguanidine, triaminoguanidine, and dicyanodiamidine, and the elements sodium, potassium, magnesium, calcium, cerium, and/or multivalent metal oxides.
- the propellant charges according to the invention exhibit improved stability over the prior art when stored in a moist or warm location.
- the priming explosive according to the present invention in addition to the known salts of mono- and/or dinitrodihydroxydiazobenzene, diazodinitrophenol, triazol- and tetrazol compounds, the salts of nitrotriazolone and the salts of dinitrobenzofuroxan, especially the potassium salt, can be used in addition.
- organic compounds with functional azide groups cyanuric acid, triazidotrinitrobenzene, styphnyldiazide, or 2-picryl-5-nitrotetrazol can be mentioned.
- the priming explosives are preferably used in an amount of 5 to 70 wt. %, especially 30 to 60 wt. %. based on the total mixture.
- oxygen-supplying substances in addition to the metal peroxide, zinc peroxide, known of itself from the prior art, other oxygen-supplying substances may be used.
- additional substances in this regard the following can be used for example in the propellant charge: stannic oxide, cerium dioxide, tungsten trioxide and/or nitrates of ammonium, guanidine, aminoguanidine, triaminoguanidine, dicyanodiamidine, and the elements sodium, potassium, magnesium, calcium, cerium, and especially potassium nitrate or basic cerium nitrate.
- the quantities of oxygen-supplying substances in the propellant charges according to the invention can be between 5 and 70 wt. % for example, based on the total mixture.
- An amount of 8 to 60 wt. % of the oxygen-supplying substance is especially preferable according to the invention.
- the substances can be used both in a finely pulverulent state and in a coarsely pulverulent state. Finely pulverulent substances with an average grain size of about 10 ⁇ m are preferably used when the propellant charges are used as compressed charges, while coarsely pulverulent substances with a grain size of about 30 ⁇ m are especially suitable for less powerfully compressed charges, for example in rim fire charges.
- the propellant charges can also contain sensitizers, reducing agents, friction agents, secondary explosives, and/or inert substances.
- sensitizers preferably tetrazene
- amounts from 0 to 30 wt. % based on the total mixture can be present.
- Reducing agents that contribute to conversion are suitable in the propellant charges according to the invention for improving the ignition capacity and also partly produce an increase in mechanical sensitivity.
- Suitable substances are preferably chosen from carbon and/or metal powders, especially boron, aluminum, cerium, titanium, zirconium, magnesium, and silicon, from metal alloys especially cerium-magnesium, cerium-silicon, titanium-aluminum, aluminum-magnesium, and calcium silicide and from metal sulfides especially antimony sulfide and molybdenum sulfide, as well as from metal hydrides, titanium hydride for example, especially in an amount of 0 to 20 wt. %, based on the total mixture.
- Some reducing agents can simultaneously also serve as a friction medium, for example antimony sulfides or calcium silicides. While the amount of reducing agent in the propellant charge can be 0 to 20 wt. %, friction agents that do not participate in the conversion process during combustion can be present in amounts of up to 45 wt. % based on the total mixture in the propellant charges according to the invention. Such friction agents are known of themselves; glass powder is an example.
- Secondary explosives such as nitrocellulose or pentaerythrite tetranitrate for example are especially suitable as other components that contribute to the reaction.
- Other examples that could be mentioned are octogen and hexogen, as well as amino compounds of nitrated aromatics, trinitrobenzene for example, such as mono-, di-, or triaminotrinitrobenzene or aminohexanitrodiphenyl, as well as the acylation products of these compounds, such as hexanitrooxanilide, or hexanitrodiphenyl urea for example.
- these secondary explosives include for example hexanitrostilbene, hexanitrodiphenyloxide, hexanitrodiphenylsulfide, hexanitrodiphenylsulfone, and hexanitrodiphenylamine as well as tetranitrocarbazol, tetranitroacridone, or polyvinyl nitrate, as well as nitrotriazolone and its compounds.
- the amounts of these substances in the propellant charge can be 0 to 30 wt. % of the total mixture.
- Substances known of themselves are suitable for use as inert substances in the propellant charges according to the invention, said substances often being added to adjust the properties of these charges to individual applications.
- binders, adhesives, dyes, passivators, and/or substances for characterizing odor could be mentioned in this connection and which preferably can be contained in amounts of 0 to 20 wt. % based on the total mixture.
- Calcium carbonate, titanium dioxide, and/or white boron nitride can be mentioned as examples.
- the charge mixture or the binder as well as the covering of the charge can have means for characterizing odor added to them which are suitable for resisting thermal stress during firing.
- vanillin exhibits these properties.
- the manufacture of the propellant charges according to the invention is performed using methods known of themselves by screening the mixture when dry or by kneading the mixture after it has been moistened with water.
- the mass moistened with water can then be metered by smearing it on perforated plates or by extrusion molding.
- This example describes a propellant charge for an anvil percussion cap with a 20 mg load.
- a mixture of 45 parts by weight of potassium dinitrobenzofuroxanate, 5 parts by weight tetrazene, 30 parts by weight zinc peroxide, 15 parts by weight stannous dioxide, and 5 parts by weight of titanium was homogenized with 22 parts by weight of water and metered by smearing on perforated plates. After being placed in percussion caps, the mixtures were dried and pressed.
- the flammable mixture according to the invention when stored in moisture and heat at a temperature of 71° C. and an atmospheric humidity of 90% for 7 days, exhibited better stability than a conventional diazol-containing propellant charge. No expulsion of the primer cap from the cartridges was observed during the sensitivity test.
- a mixture moistened with water and composed of 40 parts by weight of diazodinitrophenol, 15 parts by weight of tetrazene, 8 parts by weight of zinc peroxide, 35 parts by weight of glass powder (120 to 170 ⁇ m), and 2 parts by weight of Adhesin • (adhesive) were tossed into .221 fB rim fire cartridges, 18 mg each.
- the propellant charge required a varnish layer of 3 to 4 mg Vinnapas • A50 as wadding for reliable complete ignition, said layer containing 0.2 mg vanillin to characterize the odor.
- Example 2 Similarly to Example 1, a propellant charge for .221 fB rim fire cartridges, 16 mg each, was produced. A mixture of 47 parts by weight of potassium dinitrobenzofuroxanate, 10 parts by weight of tetrazene, 8 parts by weight of zinc peroxide, 34 parts by weight of glass powder (90 to 200 ⁇ m), and 1 part by weight of Adhesin • (adhesive) was processed similarly to Example 1.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Automotive Seat Belt Assembly (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Catalysts (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/164,583 US20020179209A1 (en) | 1995-10-28 | 2002-06-10 | Lead-and barium-free propellant charges |
US10/752,536 US6997998B2 (en) | 1995-10-28 | 2004-01-08 | Lead-and barium-free propellant charges |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19540278.2 | 1995-10-28 | ||
DE19540278A DE19540278A1 (de) | 1995-10-28 | 1995-10-28 | Blei- und Barium-freie Anzündsätze |
US09/739,235 US20010001970A1 (en) | 1995-10-28 | 2000-12-19 | Lead- and barium-free propellant charges |
US10/164,583 US20020179209A1 (en) | 1995-10-28 | 2002-06-10 | Lead-and barium-free propellant charges |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/739,235 Continuation US20010001970A1 (en) | 1995-10-28 | 2000-12-19 | Lead- and barium-free propellant charges |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US37340503A Continuation | 1995-10-28 | 2003-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020179209A1 true US20020179209A1 (en) | 2002-12-05 |
Family
ID=7776091
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/164,583 Abandoned US20020179209A1 (en) | 1995-10-28 | 2002-06-10 | Lead-and barium-free propellant charges |
US10/752,536 Expired - Lifetime US6997998B2 (en) | 1995-10-28 | 2004-01-08 | Lead-and barium-free propellant charges |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/752,536 Expired - Lifetime US6997998B2 (en) | 1995-10-28 | 2004-01-08 | Lead-and barium-free propellant charges |
Country Status (10)
Country | Link |
---|---|
US (2) | US20020179209A1 (ru) |
EP (1) | EP0800496B1 (ru) |
JP (1) | JPH11502864A (ru) |
KR (1) | KR100537348B1 (ru) |
CA (1) | CA2209203C (ru) |
CZ (1) | CZ293600B6 (ru) |
DE (1) | DE19540278A1 (ru) |
IL (1) | IL121183A (ru) |
RU (1) | RU2233825C2 (ru) |
WO (1) | WO1997016397A1 (ru) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004063128A1 (de) * | 2003-01-14 | 2004-07-29 | Ruag Ammotec Gmbh | Treibladung |
US20180127328A1 (en) * | 2014-11-10 | 2018-05-10 | Ruag Ammotec Gmbh | Thermal pre-ignition agent |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19540278A1 (de) | 1995-10-28 | 1997-04-30 | Dynamit Nobel Ag | Blei- und Barium-freie Anzündsätze |
WO1999003800A1 (de) * | 1997-07-18 | 1999-01-28 | Dynamit Nobel Gmbh Explosivstoff-Und Systemtechnik | Geschoss-patrone |
GB2329380B (en) * | 1997-09-13 | 1999-08-18 | Royal Ordnance Plc | Priming composition |
DE19805539A1 (de) * | 1998-02-11 | 1999-08-12 | Lell Peter Dipl Ing Dr | Alternative Anzündverfahren für pyrotechnische Baugruppen |
DE19807598A1 (de) * | 1998-02-11 | 1999-10-21 | Lell Peter | Alternative Anzündverfahren |
DE19901988A1 (de) * | 1999-01-20 | 2000-08-03 | Dynamit Nobel Ag | Knallpatronen und Treibkartuschen |
ATA75099A (de) * | 1999-04-28 | 2001-03-15 | Hirtenberger Ag | Anzündmischung |
EP1230198B1 (de) * | 1999-09-15 | 2007-11-21 | RUAG Ammotec GmbH | Munition |
CZ288858B6 (cs) * | 1999-09-17 | 2001-09-12 | Sellier & Bellot, A. S. | Netoxická a nekorozivní zážehová slož |
KR20020048419A (ko) * | 1999-09-27 | 2002-06-22 | 고지마 아끼로, 오가와 다이스께 | 염기성 금속 질산염, 그 제조법 및 가스 발생제 조성물 |
US6478903B1 (en) * | 2000-10-06 | 2002-11-12 | Ra Brands, Llc | Non-toxic primer mix |
JP4791645B2 (ja) * | 2001-04-05 | 2011-10-12 | カヤク・ジャパン株式会社 | 雷管用延時装置 |
WO2003105696A1 (en) | 2001-06-06 | 2003-12-24 | Closure Medical Corporation | Single-use applicators, dispensers and methods for polymerizable monomer compound |
AT410315B (de) * | 2001-11-14 | 2003-03-25 | Josef Koehler | Signaturarmer und schadstoffreduzierter, pyrotechnischer darstellungskörper |
US6964716B2 (en) | 2002-09-12 | 2005-11-15 | Daicel Chemical Industries, Ltd. | Gas generating composition |
US20040154713A1 (en) * | 2003-01-23 | 2004-08-12 | Olin Corporation | Lead-free nontoxic priming mix |
CA2457248C (en) | 2003-02-07 | 2012-07-17 | Closure Medical Corporation | Applicators, dispensers and methods for dispensing and applying adhesive material |
US20040190975A1 (en) | 2003-02-07 | 2004-09-30 | Closure Medical Corporation | Applicators, dispensers and methods for dispensing and applying adhesive material |
US8784583B2 (en) | 2004-01-23 | 2014-07-22 | Ra Brands, L.L.C. | Priming mixtures for small arms |
DE102006024511A1 (de) | 2006-05-23 | 2007-11-29 | Ruag Ammotec Gmbh | Anzündsatz |
RU2318789C1 (ru) * | 2006-10-16 | 2008-03-10 | Общество с ограниченной ответственностью "ИФОХИМ" | Модификатор взрывчатых веществ |
US8750826B2 (en) * | 2007-01-18 | 2014-06-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for alternative billing of voice over internet protocol (VoIP) services |
WO2009079788A1 (en) * | 2007-12-24 | 2009-07-02 | General Dynamics Ordnance And Tactical Systems - Canada Valleyfield Inc. | Low toxicity primer compositions for reduced energy ammunition |
PL2352710T3 (pl) | 2008-11-07 | 2018-10-31 | Ruag Ammotec Gmbh | Ładunki zapłonowe o zwiększonej wydajności zapłonu |
RU2542297C2 (ru) * | 2012-10-01 | 2015-02-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет | Ударный капсюльный состав |
DE102014016469B4 (de) | 2014-11-06 | 2016-05-25 | Diehl Bgt Defence Gmbh & Co. Kg | Zündvorrichtung zum Zünden einer Treibladung |
WO2016101057A1 (en) * | 2014-12-23 | 2016-06-30 | General Dynamics, Ots - Canada, Inc. | Tungsten oxide primer compositions |
Family Cites Families (21)
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US3321342A (en) * | 1965-03-15 | 1967-05-23 | Tigrett | Re-ignitable match |
NL7403593A (ru) | 1973-03-23 | 1974-09-25 | ||
DE2543971C2 (de) | 1975-10-02 | 1986-05-22 | Dynamit Nobel Ag, 5210 Troisdorf | Anzündsystem für hochtemperaturbeständige Treibmittel |
DE2952069C2 (de) | 1979-12-22 | 1983-02-17 | Dynamit Nobel Ag, 5210 Troisdorf | Verwendung von Zinkperoxid in sprengstoffhaltigen oder pyrotechnischen Gemischen |
US4464989A (en) | 1983-05-13 | 1984-08-14 | The United States Of America As Represented By The United States Department Of Energy | Integral low-energy thermite igniter |
DE3321943A1 (de) * | 1983-06-18 | 1984-12-20 | Dynamit Nobel Ag, 5210 Troisdorf | Blei- und bariumfreie anzuendsaetze |
US4575379A (en) | 1984-06-11 | 1986-03-11 | Browning John M | Fuel composition and method of preparation therefor |
US4858534A (en) | 1986-04-23 | 1989-08-22 | Amoco Corporation | Ballistic lubricating and process |
DE3707694A1 (de) | 1987-03-11 | 1988-09-29 | Dynamit Nobel Ag | Elektrisch anzuendbare anzuendsaetze fuer huelsenlose munition und treibkartuschen |
US4963201A (en) * | 1990-01-10 | 1990-10-16 | Blount, Inc. | Primer composition |
US5059261A (en) | 1990-05-22 | 1991-10-22 | Mach I Inc. | Processing of materials using rupturable microcapsulates containing detection materials |
US5216199A (en) | 1991-07-08 | 1993-06-01 | Blount, Inc. | Lead-free primed rimfire cartridge |
US5167736A (en) | 1991-11-04 | 1992-12-01 | Olin Corporation | Nontoxic priming mix |
US5567252A (en) | 1992-01-09 | 1996-10-22 | Olin Corporation | Nontoxic priming mix |
FR2693721B1 (fr) * | 1992-07-20 | 1994-10-21 | Ncs Pyrotechnie Technologies | Charge d'amorçage à percussion annulaire et son procédé de fabrication. |
US5936190A (en) | 1993-06-01 | 1999-08-10 | Buzick; Steven Craig | Precision shooting aerodynamic non-spherical safety-oriented projectile |
US5388519A (en) * | 1993-07-26 | 1995-02-14 | Snc Industrial Technologies Inc. | Low toxicity primer composition |
IT1266171B1 (it) | 1994-07-15 | 1996-12-23 | Europa Metalli Sezione Difesa | Miscela innescante esente da materiali tossici ed innesco a percussione per cartucce utilizzante tale miscela. |
EP0704415B1 (en) | 1994-08-27 | 1999-03-03 | Eley Limited | Primer composition |
BR9500890A (pt) * | 1995-02-24 | 1997-04-29 | Companhia Brasileira De Cartuc | Misturas iniciadoras não tóxicas isentas de chumbo e bário e tendo como oxidante principal óxido de estanho |
DE19540278A1 (de) | 1995-10-28 | 1997-04-30 | Dynamit Nobel Ag | Blei- und Barium-freie Anzündsätze |
-
1995
- 1995-10-28 DE DE19540278A patent/DE19540278A1/de not_active Ceased
-
1996
- 1996-10-26 WO PCT/EP1996/004674 patent/WO1997016397A1/de active IP Right Grant
- 1996-10-26 IL IL12118396A patent/IL121183A/xx not_active IP Right Cessation
- 1996-10-26 JP JP9517054A patent/JPH11502864A/ja active Pending
- 1996-10-26 KR KR1019970704552A patent/KR100537348B1/ko not_active IP Right Cessation
- 1996-10-26 CZ CZ19972058A patent/CZ293600B6/cs unknown
- 1996-10-26 EP EP96937260.6A patent/EP0800496B1/de not_active Expired - Lifetime
- 1996-10-26 RU RU97112911/02A patent/RU2233825C2/ru active
- 1996-10-26 CA CA002209203A patent/CA2209203C/en not_active Expired - Lifetime
-
2002
- 2002-06-10 US US10/164,583 patent/US20020179209A1/en not_active Abandoned
-
2004
- 2004-01-08 US US10/752,536 patent/US6997998B2/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004063128A1 (de) * | 2003-01-14 | 2004-07-29 | Ruag Ammotec Gmbh | Treibladung |
US20060137787A1 (en) * | 2003-01-14 | 2006-06-29 | Lechner Peter S | Propelling charge |
US20090084283A1 (en) * | 2003-01-14 | 2009-04-02 | Peter Simon Lechner | Propellant Charge |
US9181141B2 (en) * | 2003-01-14 | 2015-11-10 | Ruag Ammotec Gmbh | Propellant charge |
US20180127328A1 (en) * | 2014-11-10 | 2018-05-10 | Ruag Ammotec Gmbh | Thermal pre-ignition agent |
Also Published As
Publication number | Publication date |
---|---|
EP0800496A1 (de) | 1997-10-15 |
US20050067073A1 (en) | 2005-03-31 |
KR100537348B1 (ko) | 2006-05-25 |
DE19540278A1 (de) | 1997-04-30 |
CZ205897A3 (en) | 1997-11-12 |
WO1997016397A1 (de) | 1997-05-09 |
CZ293600B6 (cs) | 2004-06-16 |
CA2209203A1 (en) | 1997-05-09 |
US6997998B2 (en) | 2006-02-14 |
RU2233825C2 (ru) | 2004-08-10 |
IL121183A (en) | 2000-08-31 |
CA2209203C (en) | 2007-10-02 |
EP0800496B1 (de) | 2016-05-25 |
JPH11502864A (ja) | 1999-03-09 |
KR980700942A (ko) | 1998-04-30 |
IL121183A0 (en) | 1997-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |