EP1089955B1 - Verfahren zur herstellung pyrotechnischer anzündsätze - Google Patents
Verfahren zur herstellung pyrotechnischer anzündsätze Download PDFInfo
- Publication number
- EP1089955B1 EP1089955B1 EP99926266A EP99926266A EP1089955B1 EP 1089955 B1 EP1089955 B1 EP 1089955B1 EP 99926266 A EP99926266 A EP 99926266A EP 99926266 A EP99926266 A EP 99926266A EP 1089955 B1 EP1089955 B1 EP 1089955B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- process according
- dispersing agent
- components
- metal
- pyrotechnic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0008—Compounding the ingredient
-
- 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
- C06B33/06—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 the material being an inorganic oxygen-halogen salt
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C9/00—Chemical contact igniters; Chemical lighters
Definitions
- the invention relates to a method for manufacturing of pyrotechnic primers based on metal powders or metal hydrides, potassium perchlorate and binders.
- Pyrotechnic igniters are mixtures of solid substances in mostly powdery state, the components of which are mainly consist of reducing agents and oxidizing agents.
- reducing agents e.g. reducing agents
- oxidizing agents e.g. reducing agents
- a redox process is initiated: the pyrotechnic charge burns depending on the structure and arrangement more or less violently.
- Pyrotechnic igniters are widely used and e.g. as match heads of matches, in luminous and Signal ammunition, in smoke and fog bodies, in gas generators, e.g. for safety air cushions (airbags) and in numerous different arrangements used in fireworks.
- Pyrotechnic primers are usually manufactured by dry mixing the individual components. happens this by hand, so the crushed components pressed through sieves and mixed. With machine The components of the pyrotechnic primer will be mixed possibly unmixed after previous grinding filled in containers and in this by stirrers, rotary movements of the mixing container or applying shear forces Facilities mixed homogeneously. As mixing devices Tumble mixer, tetrahedron mixer, planetary mixer or from it derived and combined mixers used.
- Pyrotechnic primers are often used as granules, because they pour and dose better in this form to let.
- the granulation is done by adding a suitable one Solvent for dry primer and mixing in Special containers.
- the solvent can already bind the binder dissolved or the binder component, which with the solvent is swellable or soluble in it already in powder form in the pyrotechnic sentence, so that Adhesive forces develop when the solvent is added can eventually lead to the form of granules.
- special granule mixers are provided for training In the granulate form. Subsequent drying removes the solvent removed so that you get a meterable bulk.
- Another difficulty with this method is dimensioning the amount of liquid.
- the invention has for its object a method for Manufacture of pyrotechnic primers of the type in question Specify the way in which the components used are homogeneous are mixed, at the same time the risk of triggering the mixture significantly reduced and a reproduced dosage is made possible.
- the individual components for the pyrotechnic Ignition charge with the help of suitable liquid dispersants made several homogeneous suspensions that didn't or are only slightly explosive. These suspensions are mixed in small quantities using ultrasound. The mixture is immediately in this consistency for the lighter in the desired amount e.g. dosed in lighter or on ignition elements, after which from the metered amount the dispersion medium are removed.
- the little or not explosive Suspensions mixed in batches in small quantities and dosed immediately after this mixing e.g. in the housing of an airbag lighter.
- the liquid mixture is preserved so that Cracks and voids are avoided and the ignition properties of the lighter are reproducible.
- the grain sizes of the solids used i.e. metal powder or metal hydrides and the potassium perchlorate are here smaller than 50 ⁇ m, preferably smaller than 20 ⁇ m.
- the invention can by a suitable amount of dispersant both an optimal mixing of the components as well as a suitable viscosity of the suspension for that subsequent dosing can be achieved.
- the homogeneous distribution of the components in the suspension required energy is introduced into the mixture by cavitation.
- the cavitation is preferred by ultrasound with frequencies generated greater than 16 kHz.
- With the implosion of the by Cavitation gas bubbles can reach temperatures of approx. 5500 ° C and pressures up to 500 bar can be reached.
- Rapidity of gas bubble disintegration in a period of time of less than 1 ⁇ s and due to the small size of the Gas bubbles, which are usually smaller than 150 ⁇ m, are Cooling rate at implosion so high that the warming the suspension remains negligible.
- the chemical Effects of ultrasound have been reported by K. S. Suslick in the magazine Spektrum dermaschine, Issue 4, pages 60ff, 1989, here essentially Aspects of liquid and solid sonochemistry Surfaces as well as suspended particles were examined.
- the components can be mixed directly in the container from which subsequently is also metered to the preparation of the dispersion. This is e.g. through the use of appropriately shaped sonotrodes, very possible.
- the mixtures are e.g. in cartridges or cartridges, which are then placed in a dosing device be used.
- the liquid mixtures will be then with light pressure or by vacuum, e.g. in prepared Ignition housing or dosed on ignition elements.
- the mixing room can be with a sonotrode connection or be provided with a mechanical sonotrode contact.
- the per se dangerous Mix made only as much as for one or a few lighters is needed.
- the production can then be mechanically more economical in one for series production suitable high clock sequence can be controlled.
- a composition of the ignition charge from potassium perchlorate, Zirconium powder, a binder and a solvent selected then two suspension-like premixes can be produced that are not or only slightly explosive are, as a component that in the solvent dispersed potassium perchlorate and as a second component the zirconium powder dispersed in the solvent, the Binder is already dissolved in the solvent.
- the primers e.g. by drying the rest Dispersion medium freed and further processing fed.
- the ratio of solid to dispersant is variable and experience has shown that it is in the range of 70% to 80% solids.
- the metal used is preferably titanium or zirconium or their Hydride used.
- the binder is preferably made from the Group of fluorinated polymeric aliphates selected.
- the dispersant preferably acts as a solvent for the binder and preferably comes from the series of aliphatic Ketones. Acetone or methyl ethyl ketone have been used for this proven.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Air Bags (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823999 | 1998-05-28 | ||
DE19823999A DE19823999C2 (de) | 1998-05-28 | 1998-05-28 | Verfahren zur Herstellung von pyrotechnischen Anzündern |
PCT/DE1999/001160 WO1999061394A1 (de) | 1998-05-28 | 1999-04-16 | Verfahren zur herstellung pyrotechnischer anzündsätze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1089955A1 EP1089955A1 (de) | 2001-04-11 |
EP1089955B1 true EP1089955B1 (de) | 2002-08-21 |
Family
ID=7869260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99926266A Expired - Lifetime EP1089955B1 (de) | 1998-05-28 | 1999-04-16 | Verfahren zur herstellung pyrotechnischer anzündsätze |
Country Status (9)
Country | Link |
---|---|
US (1) | US6783616B1 (ko) |
EP (1) | EP1089955B1 (ko) |
JP (1) | JP2002516250A (ko) |
KR (1) | KR100570574B1 (ko) |
AT (1) | ATE222580T1 (ko) |
AU (1) | AU752432B2 (ko) |
CA (1) | CA2332903A1 (ko) |
DE (2) | DE19823999C2 (ko) |
WO (1) | WO1999061394A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111393238A (zh) * | 2020-04-03 | 2020-07-10 | 江西省冠天科技有限公司 | 一种能实现安全生产、贮运和燃放的烟花 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100436568B1 (ko) * | 2001-11-09 | 2004-06-19 | 국방과학연구소 | 미세 과염소산칼륨이 포함된 혼합화약의 초음파를 이용한제조방법 |
US6941868B2 (en) * | 2003-06-26 | 2005-09-13 | Autoliv Asp, Inc. | Single increment initiator charge |
US6905562B2 (en) * | 2003-09-04 | 2005-06-14 | Autoliv Asp, Inc. | Low density slurry bridge mix |
FR2861389B1 (fr) * | 2003-10-22 | 2006-03-10 | Davey Bickford | Composition pyrotechnique faiblement sensible a l'electricite statique et aux ultrasons. |
JP4473818B2 (ja) * | 2005-12-28 | 2010-06-02 | 昭和金属工業株式会社 | イニシエータ用点火薬とその製造方法及びそれを用いたイニシエータの製造方法 |
US20100294113A1 (en) * | 2007-10-30 | 2010-11-25 | Mcpherson Michael D | Propellant and Explosives Production Method by Use of Resonant Acoustic Mix Process |
SG186824A1 (en) * | 2010-07-15 | 2013-02-28 | Nippon Kayaku Kk | Ignition powder composition for igniter |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
CN103524279A (zh) * | 2013-09-22 | 2014-01-22 | 安徽省无为县花炮总厂 | 一种烟花的配方 |
RU2663047C1 (ru) * | 2017-04-04 | 2018-08-01 | Акционерное общество "Научно-производственное предприятие "Краснознамёнец" | Способ изготовления пиротехнических составов |
CN108863687B (zh) * | 2018-09-04 | 2020-12-25 | 南京理工大学 | 一种基于微流控技术的纳米炸药制备系统和方法 |
CN112898105A (zh) * | 2021-02-09 | 2021-06-04 | 北京理工大学 | 一种无硫无氮耐高温环保烟花发射药及其制备方法 |
CN215676697U (zh) * | 2021-09-23 | 2022-01-28 | 李亮 | 一种具有金属花效果的砂炮 |
Family Cites Families (28)
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US3222231A (en) | 1962-09-18 | 1965-12-07 | Atlantic Res Corp | Process for producing finely divided rounded particles |
DE1578099A1 (de) * | 1966-04-07 | 1971-04-08 | Dynamit Nobel Ag | Verfahren zum Einbringen von Zuendsatz in die Bodenfalte von Kartuschhuelsen fuer Randfeuerzuendung |
US3420137A (en) * | 1967-08-18 | 1969-01-07 | Olin Mathieson | Contained compacted ammunition primer composition and method of preparation |
US3652350A (en) * | 1969-06-23 | 1972-03-28 | Hi Shear Corp | Method of blending pyrotechnic mixtures |
US3954526A (en) * | 1971-02-22 | 1976-05-04 | Thiokol Corporation | Method for making coated ultra-fine ammonium perchlorate particles and product produced thereby |
US3708357A (en) * | 1971-04-21 | 1973-01-02 | Us Army | Oxidizers with improved thermal stability and method of making same |
US3739166A (en) * | 1971-12-30 | 1973-06-12 | Gen Electric | Photoflash device |
US4000025A (en) * | 1974-05-28 | 1976-12-28 | The United States Of America As Represented By The Secretary Of The Navy | Incorporating ballistic modifiers in slurry cast double base containing compositions |
FR2344329A1 (fr) * | 1976-03-18 | 1977-10-14 | Deberghe & Lafaye | Procede et dispositif permettant de modifier les caracteristiques d'un fluide |
US4247494A (en) * | 1977-08-16 | 1981-01-27 | Imi Kynoch Limited | Case priming |
US4207125A (en) * | 1978-08-07 | 1980-06-10 | Energy Sciences And Consultants, Inc. | Pre-mix for explosive composition and method |
US4287010A (en) * | 1979-08-06 | 1981-09-01 | E. I. Du Pont De Nemours & Company | Emulsion-type explosive composition and method for the preparation thereof |
US4640724A (en) * | 1980-04-19 | 1987-02-03 | Imi Kynoch Limited | Methods of priming explosive devices |
CA1195122A (en) * | 1981-05-25 | 1985-10-15 | Paul Arni | Process for preparing a high power explosive, high power explosive produced thereby and method for shaping a high power |
CH664554A5 (en) * | 1985-07-15 | 1988-03-15 | Oerlikon Buehrle Ag | Ignition powder mixt. for solid propellant reinforcing charge - contg. inorganic. fuel and excess inorganic oxidant to generate oxygen and prevent hang fire in cold |
US4841865A (en) * | 1987-06-17 | 1989-06-27 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Smoke composition and method of making same |
CH676389A5 (ko) * | 1987-07-29 | 1991-01-15 | Eidgenoess Munitionsfab Thun | |
DE3925234A1 (de) | 1989-07-29 | 1991-01-31 | Nico Pyrotechnik | Verfahren zur herstellung explosionsgefaehrlicher stoffgemische |
DE4143631A1 (de) * | 1991-05-30 | 1998-04-16 | Dynamit Nobel Ag | Zerkleinerung von pulverförmigen Initialsprengstoffen |
RU2056926C1 (ru) * | 1993-04-15 | 1996-03-27 | Всероссийский научно-исследовательский институт консервной и овощесушильной промышленности | Смеситель |
US5728964A (en) * | 1993-10-20 | 1998-03-17 | Quantic Industries, Inc. | Electrical initiator |
RU2050963C1 (ru) * | 1993-11-18 | 1995-12-27 | Всероссийский научно-исследовательский институт консервной и овощесушильной промышленности | Ультразвуковой диспергатор-смеситель |
US5531845A (en) * | 1994-01-10 | 1996-07-02 | Thiokol Corporation | Methods of preparing gas generant formulations |
GB9511263D0 (en) | 1995-06-03 | 1995-07-26 | Ici Plc | Process for the production of a pyrotechnic or explosive device |
US5732634A (en) * | 1996-09-03 | 1998-03-31 | Teledyne Industries, Inc. | Thin film bridge initiators and method of manufacture |
US5831207A (en) * | 1996-10-30 | 1998-11-03 | Breed Automotive Technology, Inc. | Autoignition composition for an airbag inflator |
US6224099B1 (en) * | 1997-07-22 | 2001-05-01 | Cordant Technologies Inc. | Supplemental-restraint-system gas generating device with water-soluble polymeric binder |
US6170399B1 (en) * | 1997-08-30 | 2001-01-09 | Cordant Technologies Inc. | Flares having igniters formed from extrudable igniter compositions |
-
1998
- 1998-05-28 DE DE19823999A patent/DE19823999C2/de not_active Expired - Fee Related
-
1999
- 1999-04-16 KR KR1020007013169A patent/KR100570574B1/ko not_active IP Right Cessation
- 1999-04-16 CA CA002332903A patent/CA2332903A1/en not_active Abandoned
- 1999-04-16 US US09/701,275 patent/US6783616B1/en not_active Expired - Lifetime
- 1999-04-16 JP JP2000550806A patent/JP2002516250A/ja not_active Withdrawn
- 1999-04-16 EP EP99926266A patent/EP1089955B1/de not_active Expired - Lifetime
- 1999-04-16 AT AT99926266T patent/ATE222580T1/de not_active IP Right Cessation
- 1999-04-16 AU AU43584/99A patent/AU752432B2/en not_active Ceased
- 1999-04-16 DE DE59902415T patent/DE59902415D1/de not_active Expired - Lifetime
- 1999-04-16 WO PCT/DE1999/001160 patent/WO1999061394A1/de active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111393238A (zh) * | 2020-04-03 | 2020-07-10 | 江西省冠天科技有限公司 | 一种能实现安全生产、贮运和燃放的烟花 |
CN111393238B (zh) * | 2020-04-03 | 2022-01-18 | 朱炳强 | 一种能实现安全生产、贮运和燃放的烟花 |
Also Published As
Publication number | Publication date |
---|---|
DE59902415D1 (de) | 2002-09-26 |
DE19823999C2 (de) | 2002-07-18 |
EP1089955A1 (de) | 2001-04-11 |
DE19823999A1 (de) | 1999-12-09 |
CA2332903A1 (en) | 1999-12-02 |
JP2002516250A (ja) | 2002-06-04 |
AU752432B2 (en) | 2002-09-19 |
KR100570574B1 (ko) | 2006-04-12 |
WO1999061394A1 (de) | 1999-12-02 |
AU4358499A (en) | 1999-12-13 |
KR20010052391A (ko) | 2001-06-25 |
ATE222580T1 (de) | 2002-09-15 |
US6783616B1 (en) | 2004-08-31 |
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