EP1876160B1 - Active blasting charge - Google Patents
Active blasting charge Download PDFInfo
- Publication number
- EP1876160B1 EP1876160B1 EP07012879A EP07012879A EP1876160B1 EP 1876160 B1 EP1876160 B1 EP 1876160B1 EP 07012879 A EP07012879 A EP 07012879A EP 07012879 A EP07012879 A EP 07012879A EP 1876160 B1 EP1876160 B1 EP 1876160B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- binder
- explosive
- blast
- red phosphorus
- hmx
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B39/00—Compositions containing free phosphorus or a binary compound of phosphorus, except with oxygen
-
- 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
- C06B21/005—By a process involving melting at least part of the ingredients
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
Definitions
- the present invention relates to a highly explosive blast active charge.
- HE blast charges such as WO 2004/069771 and EP 1584610 A2 are known, typically consist of mixtures of explosives with metallic fuels such as boron, silicon, aluminum, titanium, zirconium, magnesium or mixtures or metal-rich compounds or alloys of these metals.
- blast active charge which addresses the above-mentioned problems with conventional blast active charges avoids.
- the blast active charge should achieve higher performance, ie a faster and as complete as possible burnout in enclosed spaces.
- the blast active charge proposed according to the present invention consists of red phosphorus or a red phosphorus-containing compound, an explosive and a binder.
- the blast charge is thus highly explosive, burns faster and more complete than conventional metal-based blast charges and achieves a very high pressure volume work.
- the binder of the blast active charge may optionally be an inert binder or an explosive, such as TNT or TATB.
- the molecular P / O ratio of the blast active charge can be both ⁇ 2/5 and ⁇ 2/5.
- the present invention solves the above-described problems of conventional metal-based blast reactor charges through the use of red phosphorus.
- red phosphorus is ignited under atmospheric pressure, a slow burn-off occurs in the range of 0.1 mm / s.
- oxygen-based pyrotechnic compositions based on red phosphorus deliver burn rates of 1-2 mm / s. If such sentences are included, an explosive burn-up takes place after ignition.
- HMX High Melting Explosive
- HTPB hydroxyl-terminated poly-butadiene
- RP red phosphorus
- the invention is not limited only to blast active charges with the above ternary system HMX / HTPB / RP.
- an explosive such as TNT or TATB may be used in place of the non-explosive and low-inflammatory HTPB.
- the molecular P / O ratio of the blast active charge may be both ⁇ 2/5 and ⁇ 2/5.
- red phosphorus or red phosphorus-containing compounds in the blast active charge of the invention causes a high pressure exponent n in the aforementioned Dahlle's Law, resulting in accelerated burnout in confined spaces.
- the resulting oxide is highly volatile in this case (e.g., from about 250 ° C), resulting in a complete or at least nearly complete reaction of the active charge and at the same time contributing to pressure-volume work.
- blast active charge requires a smaller amount of expensive nitramines such as HMX and the like than conventional systems.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
Die vorliegende Erfindung betrifft eine hochexplosive Blast-Wirkladung.The present invention relates to a highly explosive blast active charge.
Herkömmliche hochexplosive (HE-) Blast-Wirkladungen wie zum Beispiel aus
Ein inhärenter Nachteil der Verwendung von Metallen in binären wie einheitlichen Ladungen dieser Art ist der Umstand, dass die Verbrennung von Metallpartikeln generell nur unwesentlich durch den Atmosphärendruck beeinflusst wird. Das bedeutet, dass der Druckexponent n im Vielle'schen Gesetz r=a·pn nur sehr klein ist. Außerdem leiden Metalle grundsätzlich an dem Mangel, dass die an ihnen haftenden Oxidschichten einen schnellen Ausbrand verhindern. Insbesondere das kalorisch so vorteilhafte Bor mit einer volumenbezogenen Verbrennungsenthalpie von 138 MJ/dm3 nimmt aufgrund der inhärenten B2O3-Schicht nicht in vollem Umfang an einer Reaktion, sei dies in der Detonationsreaktionszone oder bei der Nachverbrennung, teil.An inherent disadvantage of using metals in both binary and uniform charges of this type is the fact that the combustion of metal particles is generally affected only insignificantly by the atmospheric pressure. This means that the pressure exponent n is only very small in Vielle's law r = a · p n . In addition, metals generally suffer from the defect that the oxide layers adhering to them prevent rapid burnout. In particular, the calorically so advantageous boron with a volume-related combustion enthalpy of 138 MJ / dm 3 due to the inherent B 2 O 3 layer does not participate fully in a reaction, be it in the detonation reaction zone or in the afterburning.
Die Probleme herkömmlicher Blast-Wirkladungen auf Metallbasis sind also:
- ein kleiner Druckexponent n der verwendeten Metalle und damit kaum Steigerung der Ausbrandgeschwindigkeit in geschlossenen Räumen, und
- eine unvollständige Reaktion der Metalle aufgrund von Oxidschichten.
- a small pressure exponent n of the metals used and thus hardly any increase in the burnout rate in enclosed spaces, and
- an incomplete reaction of the metals due to oxide layers.
Es ist daher eine Aufgabe der vorliegenden Erfindung, eine hochexplosive Blast-Wirkladung bereitzustellen, welche die oben genannten Probleme bei herkömmlichen Blast-Wirkladungen vermeidet. Insbesondere soll die Blast-Wirkladung eine höhere Leistung, d.h. einen schnelleren und möglichst vollständigen Ausbrand in geschlossenen Räumen erreichen.It is therefore an object of the present invention to provide a high explosive blast active charge which addresses the above-mentioned problems with conventional blast active charges avoids. In particular, the blast active charge should achieve higher performance, ie a faster and as complete as possible burnout in enclosed spaces.
Diese Aufgabe wird gelöst durch eine Blast-Wirkladung mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is achieved by a blast active charge with the features of claim 1. Advantageous embodiments and further developments of the invention are the subject of the dependent claims.
Die gemäß der vorliegenden Erfindung vorgeschlagene Blast-Wirkladung besteht aus rotem Phosphor oder einer roten Phosphor enthaltenden Verbindung, einem Sprengstoff und einem Binder.The blast active charge proposed according to the present invention consists of red phosphorus or a red phosphorus-containing compound, an explosive and a binder.
Die Vorteile einer solchen, roten Phosphor enthalten Blast-Wirkladung sind insbesondere
- ein hoher Druckexponent n und damit ein beschleunigter Ausbrand in geschlossenen Räumen, und
- eine hohe Flüchtigkeit des entstehenden Oxids und damit ein Beitrag zur Druck-Volumenarbeit.
- a high pressure exponent n and thus an accelerated burnout in closed rooms, and
- a high volatility of the resulting oxide and thus a contribution to the pressure-volume work.
Die Blast-Wirkladung ist somit hochexplosiv, brennt schneller und vollständiger aus als herkömmliche Blast-Wirkladungen auf Metallbasis und erzielt eine sehr hohe Druck-Volumenarbeit.The blast charge is thus highly explosive, burns faster and more complete than conventional metal-based blast charges and achieves a very high pressure volume work.
Der Binder der Blast-Wirkladung kann wahlweise ein inerter Binder oder ein Sprengstoff, wie beispielsweise TNT oder TATB sein.The binder of the blast active charge may optionally be an inert binder or an explosive, such as TNT or TATB.
Das molekulare P/O-Verhältnis der Blast-Wirkladung kann sowohl ≤ 2/5 als auch ≥ 2/5 sein.The molecular P / O ratio of the blast active charge can be both ≤ 2/5 and ≥ 2/5.
Obige sowie weitere Merkmale und Vorteile der Erfindung werden aus der nachfolgenden Beschreibung eines bevorzugten, nicht-einschränkenden Ausführungsbeispiels besser verständlich.The above and other features and advantages of the invention will become more apparent from the following description of a preferred, non-limiting embodiment thereof.
Die vorliegende Erfindung löst die eingangs beschriebenen Probleme herkömmlicher Blast-Wirkladungen auf Metallbasis durch die Verwendung von rotem Phosphor.The present invention solves the above-described problems of conventional metal-based blast reactor charges through the use of red phosphorus.
Wird roter Phosphor unter Atmosphärendruck angezündet, so erfolgt ein langsamer Abbrand im Bereich von 0,1 mm/s. Sauersoff-unterbilanzierte pyrotechnische Sätze auf der Basis von rotem Phosphor liefern dagegen Abbrandraten von 1-2 mm/s. Werden solche Sätze eingeschlossen, so erfolgt nach dem Anzünden sogar ein explosionsartiger Abbrand.If red phosphorus is ignited under atmospheric pressure, a slow burn-off occurs in the range of 0.1 mm / s. On the other hand, oxygen-based pyrotechnic compositions based on red phosphorus deliver burn rates of 1-2 mm / s. If such sentences are included, an explosive burn-up takes place after ignition.
Mischungen aus dem System Oktogen (Sprengstoff der Summenformel C4H8N8O8, Cyclotetramethylentetranitramin, auch als Homocyclonite bzw. HMX (High Melting Explosive) bezeichnet) / Hydroxyl-terminiertes Poly-Butadien (HTPB, Verwendung als Brennstoff und Bindemittel) und rotem Phosphor (RP) liefern Detonationsgeschwindigkeiten, die über jenen des reinen HMX liegen. So liefert zum Beispiel das ternäre System HMX / HTPB / RP mit dem Mischungsverhältnis von 68 / 12 / 20 eine Detonationsgeschwindigkeit von etwa 11.100 m/s und einen Chapman-Jouget-Druck von nicht weniger als 55 GPa.Mixtures of the system octogen (explosive of the empirical formula C 4 H 8 N 8 O 8 , cyclotetramethylenetetranitramine, also referred to as homocyclonites or HMX (High Melting Explosive)) / hydroxyl-terminated poly-butadiene (HTPB, use as fuel and binder) and red phosphorus (RP) provide detonation velocities in excess of those of pure HMX. For example, the HMX / HTPB / RP ternary system with the mixing ratio of 68/12/20 provides a detonation rate of about 11,100 m / s and a Chapman-Jouget pressure of not less than 55 GPa.
Die Erfindung ist aber selbstverständlich nicht nur auf Blast-Wirkladungen mit dem obigen ternären System HMX / HTPB / RP beschränkt.Of course, the invention is not limited only to blast active charges with the above ternary system HMX / HTPB / RP.
Zum Beispiel kann als Bindemittel anstelle des nicht-explosiven und schwer entzündlichen HTPB auch ein Sprengstoff wie beispielsweise TNT oder TATB verwendet werden.For example, as the binder, an explosive such as TNT or TATB may be used in place of the non-explosive and low-inflammatory HTPB.
Des Weiteren kann das molekulare P/O-Verhältnis der Blast-Wirkladung je nach deren Zusammensetzung sowohl ≤ 2/5 als auch ≥ 2/5 betragen.Furthermore, depending on their composition, the molecular P / O ratio of the blast active charge may be both ≤ 2/5 and ≥ 2/5.
Die Verwendung von rotem Phosphor bzw. roten Phosphor enthaltenden Verbindungen in der Blast-Wirkladung der Erfindung bewirkt einen hohen Druckexponenten n in dem eingangs erwähnten Vielle'schen Gesetz, was in einem beschleunigten Ausbrand in geschlossenen Räumen resultiert. Außerdem ist das entstehende Oxid in diesem Fall leicht flüchtig (z.B. ab etwa 250°C), was zu einer vollständigen oder wenigstens nahezu vollständigen Reaktion der Wirkladung führt und gleichzeitig einen Beitrag zur Druck-Volumenarbeit liefert. Wie aus der obigen Beschreibung ersichtlich, ist für die Blast-Wirkladung außerdem ein geringerer Anteil von teuren Nitraminen wie HMX und dergleichen erforderlich als bei herkömmlichen Systemen.The use of red phosphorus or red phosphorus-containing compounds in the blast active charge of the invention causes a high pressure exponent n in the aforementioned Vielle's Law, resulting in accelerated burnout in confined spaces. In addition, the resulting oxide is highly volatile in this case (e.g., from about 250 ° C), resulting in a complete or at least nearly complete reaction of the active charge and at the same time contributing to pressure-volume work. In addition, as apparent from the above description, blast active charge requires a smaller amount of expensive nitramines such as HMX and the like than conventional systems.
Claims (5)
- Blast effect charge, comprising the explosive Oktogen (HMX), a binder and red phosphorus (RP), with the red phosphorus (RP) being designed to produce a high pressure exponent and thus accelerated combustion in enclosed areas, with high volatility of the resultant oxide making a contribution to the pressure-volume work.
- Blast effect charge according to Claim 1, characterized in that the binder is hydroxyl-terminated polybutadiene (HTPB).
- Blast effect charge according to Claim 2, comprising the explosive Oktogen (HMX), the binder hydroxyl-terminated polybutadiene (HTPB) and red phosphorus (RP) in a mixture ratio of HMX/HTPB/RP equal to 68/12/20.
- Blast effect charge according to Claim 1, characterized in that the binder is an explosive.
- Blast effect charge according to Claim 4, characterized in that the binder is TNT or TATB.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006030678A DE102006030678B4 (en) | 2006-07-04 | 2006-07-04 | explosive charge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1876160A1 EP1876160A1 (en) | 2008-01-09 |
EP1876160B1 true EP1876160B1 (en) | 2009-09-30 |
Family
ID=38331717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07012879A Expired - Fee Related EP1876160B1 (en) | 2006-07-04 | 2007-06-30 | Active blasting charge |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080006167A1 (en) |
EP (1) | EP1876160B1 (en) |
DE (2) | DE102006030678B4 (en) |
NO (1) | NO20073027L (en) |
ZA (1) | ZA200705369B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008036649A1 (en) | 2008-08-06 | 2010-02-18 | Diehl Bgt Defence Gmbh & Co. Kg | Active agent for selectively causing detonation or deflagration |
DE102010005923B4 (en) | 2009-12-23 | 2016-03-24 | Diehl Bgt Defence Gmbh & Co. Kg | Pressable insensitive explosive mixture |
DE102010022982B3 (en) | 2010-06-08 | 2013-09-26 | Rheinmetall Waffe Munition Gmbh | Pressure-increasing explosive charge and ammunition containing this charge |
DE102010022983A1 (en) | 2010-06-08 | 2011-12-08 | Rheinmetall Waffe Munition Gmbh | Two-shell explosive charge |
RU2479821C2 (en) * | 2010-11-23 | 2013-04-20 | Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина" | Apparatus for forming compact element |
DE102018113345B4 (en) | 2018-06-05 | 2021-12-23 | Rheinmetall Waffe Munition Gmbh | Explosives formulation |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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AT172937B (en) * | 1948-06-26 | 1952-10-25 | August Dipl Ing Nuhsbaum | Detonator |
US2970900A (en) * | 1949-06-24 | 1961-02-07 | Olin Mathieson | Priming composition |
CH317908A (en) * | 1951-07-12 | 1956-12-15 | Hispano Suiza S A Tanger | Process for the manufacture of explosive devices |
DE1122424B (en) * | 1960-12-09 | 1962-01-18 | Olin Mathieson | Ignition mixture |
US3786751A (en) * | 1972-02-15 | 1974-01-22 | Us Army | Pressure sensitive mine insensitive to water deactivation |
US3733224A (en) * | 1972-08-24 | 1973-05-15 | G Floyd | Explosive composition containing phosphorus and particulate coffee |
US3904451A (en) * | 1973-11-28 | 1975-09-09 | Westinghouse Electric Corp | Method for preparing primer for percussion-ignitable flash lamp |
US4361450A (en) * | 1975-06-02 | 1982-11-30 | Thiokol Corporation | Plastic bonded explosive compositions |
US5352829A (en) * | 1993-04-02 | 1994-10-04 | The United States Of America As Represented By The Secretary Of The Navy | Spiro(N,N'-dinitroethylenediamino)cyclotriphosphazenes |
AU6046300A (en) * | 1999-12-22 | 2001-07-03 | Cordant Technologies, Inc. | Reduced sensitivity melt-cast explosives |
US6964714B2 (en) * | 2001-06-27 | 2005-11-15 | Alliant Techsystems Inc. | Reduced sensitivity, melt-pourable tritonal replacements |
US20040216822A1 (en) * | 2001-07-03 | 2004-11-04 | Heinz Hofmann | Process for the production of a pressed insensitive explosive mixture |
US6808572B2 (en) * | 2002-05-15 | 2004-10-26 | Aerojet-General Corporation | Solid propellant formulations and methods and devices employing the same for the destruction of airborne biological and/or chemical agents |
US6969434B1 (en) * | 2002-12-23 | 2005-11-29 | The United States Of America As Represented By The Secretary Of The Navy | Castable thermobaric explosive formulations |
WO2004069771A1 (en) * | 2003-02-05 | 2004-08-19 | Metlite Alloys Gauteng (Pty) Ltd. | Explosive composition |
FR2868774B1 (en) * | 2004-04-07 | 2007-01-12 | Giat Ind Sa | EXPLOSIVE COMPOSITION |
NO321356B1 (en) * | 2004-05-06 | 2006-05-02 | Dyno Nobel Asa | Compressible explosive composition |
FR2878320B1 (en) * | 2004-11-22 | 2009-05-08 | Giat Ind Sa | AMMUNITION OR COMPONENT OF AMMUNITION COMPRISING A STRUCTURAL ENERGETIC MATERIAL |
-
2006
- 2006-07-04 DE DE102006030678A patent/DE102006030678B4/en not_active Expired - Fee Related
-
2007
- 2007-06-13 NO NO20073027A patent/NO20073027L/en not_active Application Discontinuation
- 2007-06-29 US US11/770,800 patent/US20080006167A1/en not_active Abandoned
- 2007-06-30 DE DE502007001607T patent/DE502007001607D1/en active Active
- 2007-06-30 EP EP07012879A patent/EP1876160B1/en not_active Expired - Fee Related
- 2007-07-02 ZA ZA200705369A patent/ZA200705369B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE502007001607D1 (en) | 2009-11-12 |
ZA200705369B (en) | 2008-08-27 |
US20080006167A1 (en) | 2008-01-10 |
NO20073027L (en) | 2008-01-07 |
DE102006030678B4 (en) | 2009-05-14 |
EP1876160A1 (en) | 2008-01-09 |
DE102006030678A1 (en) | 2008-01-10 |
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