EP1211232A2 - Verfahren zur Herstellung giessfähiger kunststoffgebundener Sprengladungen - Google Patents
Verfahren zur Herstellung giessfähiger kunststoffgebundener Sprengladungen Download PDFInfo
- Publication number
- EP1211232A2 EP1211232A2 EP01124918A EP01124918A EP1211232A2 EP 1211232 A2 EP1211232 A2 EP 1211232A2 EP 01124918 A EP01124918 A EP 01124918A EP 01124918 A EP01124918 A EP 01124918A EP 1211232 A2 EP1211232 A2 EP 1211232A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- explosive
- powder
- plastic
- explosive charge
- metal powder
- 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
Links
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
-
- 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
- C06B21/0033—Shaping the mixture
- C06B21/0058—Shaping the mixture by casting a curable composition, e.g. of the plastisol type
Definitions
- the invention relates to a method for producing castable plastic-bound Explosive charges according to the preamble of claim 1.
- Plastic-bound explosive charges have a high active power relatively high insensitivity. They consist of reaction polymers in the front curing crystalline explosives, such as octogen, hexogen, pentaerythritol tetranitrate etc., can be incorporated. The polymer content is about 10 to 20 Wt .-%.
- a problem with the manufacture of plastic explosive charges is that with increasing solids content, i.e. with increasing proportion of explosive, the viscosity of the mixture can increase so that pouring of this mixture becomes impossible.
- the theoretical limit for a flowable mixture is 92 Wt .-%.
- the practical limit for flowable Mixtures is approx. 90% by weight.
- explosive charges with one high solid content can only be poured if the grain sizes are suitable for the explosive charge explosive crystals used within a predetermined diameter interval lie, so that a relatively costly screening of grain fractions is required.
- the invention has for its object a method for producing less sensitive pourable plastic-bound explosive charges with a high (e.g. Specify 90%) solid content, which one for casting the explosives have a sufficiently low viscosity without first screening out the grain fraction is required.
- a high (e.g. Specify 90%) solid content which one for casting the explosives have a sufficiently low viscosity without first screening out the grain fraction is required.
- the invention is essentially based on the idea of the respective explosive charge 0.1 to 10% by weight of very fine-grained vanadium, niobium, tantalum, chromium, molybdenum or tungsten powder or a mixture of two or more of these
- the powder grains having an essentially spherical shape should have.
- the shape of the powder grains has a very small specific surface Surprisingly shown that they are like liquid lubricants between the coarser ones Explosive particles act (tribological effect) so that they are relative low viscosities between 400 and 1200 Pas at 50 ° C result.
- Explosive charges can be easily produced with the method according to the invention, which, despite a 90% solids content, have a viscosity without Use of appropriate metal powder with a solids content of 85% is achieved.
- the percentage of the metal powder depends on the special surface of the Metal powder and the grain size and experience has shown that it is preferably between 2 and 5 wt .-%, while the grain size is preferably between 0.1 and 5 microns.
- HMX octogen
- RDX hexogen
- PETRIN Pentaerythritol tetranitrate
- the explosive charges according to the invention are produced using the following typical recipes: 80-88% by weight Crystalline explosives, e.g. RDX or HMX 10-20% by weight Binder, e.g. HTPB 5-10% by weight softener 0.01-02% by weight bonding agent 0.05-05% by weight coating aids 0.1-1.0% by weight antioxidant 0.1-10% by weight metal powder
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
80-88 Gew.-% | Kristalliner Sprengstoff, z.B. RDX oder HMX |
10-20 Gew.-% | Binder, z.B. HTPB |
5-10 Gew.-% | Weichmacher |
0,01-02 Gew.-% | Haftvermittler |
0,05-05 Gew.-% | Gießhilfen |
0,1-1,0 Gew.-% | Antioxidans |
0,1-10 Gew.-% | Metallpulver |
Claims (3)
- Verfahren zur Herstellung gießfähiger kunststoffgebundener Sprengladungen, wobei ein kristalliner Explosivstoff in eine Polymermatrix aus einem Binder, einem Weichmacher und weiteren Hilfsstoffen eingebettet wird, dadurch gekennzeichnet, daß als weiterer Hilfsstoff der Sprengladung 0,1 bis 10 Gew.-% eines Metallpulvers eines oder mehrerer der folgenden Metalle: Vanadin, Niob, Tantal, Chrom, Molybdän oder Wolfram zugesetzt wird, wobei Metallpulver verwendet werden, deren Pulverkörner eine im wesentlichen sphärische Form aufweisen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Sprengladung 2 bis 5 Gew.-% Metallpulver zugesetzt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Korngröße des jeweiligen Metallpulvers derart gewählt wird, daß sie zwischen 0,1 bis 5 µm liegt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10058705A DE10058705C1 (de) | 2000-11-25 | 2000-11-25 | Verfahren zur Herstellung gießfähiger kunststoffgebundener Sprengladungen |
DE10058705 | 2000-11-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1211232A2 true EP1211232A2 (de) | 2002-06-05 |
EP1211232A3 EP1211232A3 (de) | 2002-08-14 |
EP1211232B1 EP1211232B1 (de) | 2005-09-07 |
Family
ID=7664740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01124918A Expired - Lifetime EP1211232B1 (de) | 2000-11-25 | 2001-10-19 | Verfahren zur Herstellung giessfähiger kunststoffgebundener Sprengladungen |
Country Status (4)
Country | Link |
---|---|
US (1) | US6589374B2 (de) |
EP (1) | EP1211232B1 (de) |
DE (2) | DE10058705C1 (de) |
NO (1) | NO321217B1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060011083A1 (en) * | 2004-06-30 | 2006-01-19 | Perry William L | Microwave heating of energetic materials |
GB0815936D0 (en) * | 2008-08-29 | 2009-01-14 | Bae Systems Plc | Cast Explosive Composition |
DE102010044344A1 (de) | 2010-09-03 | 2012-03-08 | Rheinmetall Waffe Munition Gmbh | Kunststoffgebundene Sprengstoffformulierung |
DE102014007455A1 (de) * | 2014-05-21 | 2015-11-26 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Verfahren zur Drucksteigerung einer Komposit-Ladung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255281A (en) * | 1960-06-21 | 1966-06-07 | North American Aviation Inc | Propellant casting method |
US3865035A (en) * | 1969-01-16 | 1975-02-11 | Thiokol Chemical Corp | Multi-use munition |
DE3804396C1 (en) * | 1988-02-12 | 1989-05-18 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | Process for producing plastic-bonded explosives |
DE4324739C1 (de) * | 1993-07-23 | 1994-09-08 | Deutsche Aerospace | Gegossene kunststoffgebundene Sprengladung |
US5472531A (en) * | 1992-12-01 | 1995-12-05 | The United States Of America As Represented By The Secretary Of The Army | Insensitive explosive composition |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2969638A (en) * | 1956-11-30 | 1961-01-31 | Phillips Petroleum Co | Solid propellant and propellant burning rate catalyst system |
DE2952069C2 (de) * | 1979-12-22 | 1983-02-17 | Dynamit Nobel Ag, 5210 Troisdorf | Verwendung von Zinkperoxid in sprengstoffhaltigen oder pyrotechnischen Gemischen |
DE3010052C2 (de) * | 1980-03-15 | 1982-09-09 | Friedrich-Ulf 8899 Rettenbach Deisenroth | Verfahren zur Herstellung von kunststoffgebundenen Explosivstoffen |
US4747892A (en) * | 1987-05-22 | 1988-05-31 | The United States Of America As Represented By The Secretary Of The Air Force | Melt-castable explosive composition |
US5388518A (en) * | 1988-11-10 | 1995-02-14 | Composite Materials Technology, Inc. | Propellant formulation and process |
US5942720A (en) * | 1993-04-29 | 1999-08-24 | Cordant Technologies Inc. | Processing and curing aid for composite propellants |
DE19616627A1 (de) * | 1996-04-26 | 1997-11-06 | Dynamit Nobel Ag | Anzündmischungen |
-
2000
- 2000-11-25 DE DE10058705A patent/DE10058705C1/de not_active Expired - Lifetime
-
2001
- 2001-10-19 EP EP01124918A patent/EP1211232B1/de not_active Expired - Lifetime
- 2001-10-19 DE DE50107350T patent/DE50107350D1/de not_active Expired - Lifetime
- 2001-10-22 NO NO20015140A patent/NO321217B1/no not_active IP Right Cessation
- 2001-11-26 US US09/991,926 patent/US6589374B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255281A (en) * | 1960-06-21 | 1966-06-07 | North American Aviation Inc | Propellant casting method |
US3865035A (en) * | 1969-01-16 | 1975-02-11 | Thiokol Chemical Corp | Multi-use munition |
DE3804396C1 (en) * | 1988-02-12 | 1989-05-18 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | Process for producing plastic-bonded explosives |
US5472531A (en) * | 1992-12-01 | 1995-12-05 | The United States Of America As Represented By The Secretary Of The Army | Insensitive explosive composition |
DE4324739C1 (de) * | 1993-07-23 | 1994-09-08 | Deutsche Aerospace | Gegossene kunststoffgebundene Sprengladung |
Non-Patent Citations (1)
Title |
---|
CHEMICAL ABSTRACTS, vol. 118, no. 16, 19. April 1993 (1993-04-19) Columbus, Ohio, US; abstract no. 150531t, S.T. CHEN ET AL.: "Aluminium particle shape effects on the performance of solid composite propellants" Seite 172; XP000354147 & HUOYAO JISHU, Bd. 7, Nr. 4, 1991, Seiten 25-34, * |
Also Published As
Publication number | Publication date |
---|---|
NO20015140L (no) | 2002-05-27 |
EP1211232A3 (de) | 2002-08-14 |
DE50107350D1 (de) | 2005-10-13 |
EP1211232B1 (de) | 2005-09-07 |
NO321217B1 (no) | 2006-04-03 |
US20020096233A1 (en) | 2002-07-25 |
US6589374B2 (en) | 2003-07-08 |
NO20015140D0 (no) | 2001-10-22 |
DE10058705C1 (de) | 2002-02-28 |
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