EP2580175A1 - Procédé de fabrication et utilisation d'un mélange de substances explosives contenant du combustible - Google Patents

Procédé de fabrication et utilisation d'un mélange de substances explosives contenant du combustible

Info

Publication number
EP2580175A1
EP2580175A1 EP11720400.8A EP11720400A EP2580175A1 EP 2580175 A1 EP2580175 A1 EP 2580175A1 EP 11720400 A EP11720400 A EP 11720400A EP 2580175 A1 EP2580175 A1 EP 2580175A1
Authority
EP
European Patent Office
Prior art keywords
mixture
fuel
explosive
granules
inorganic
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
EP11720400.8A
Other languages
German (de)
English (en)
Other versions
EP2580175B1 (fr
Inventor
Christopher Zimmermann
Dirk Cegiel
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2580175A1 publication Critical patent/EP2580175A1/fr
Application granted granted Critical
Publication of EP2580175B1 publication Critical patent/EP2580175B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C06B21/0041—Shaping the mixture by compression
    • 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
    • C06B21/0066—Shaping the mixture by granulation, e.g. flaking
    • 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
    • C06B33/12—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 two or more oxygen-yielding compounds

Definitions

  • the present invention is concerned with the production of a mechanical explosive mixture to be processed by prescription, which consists of a fuel granulate or a granulate of a pyrotechnic mixture, a desensitic explosive and graphite.
  • a mechanical explosive mixture to be processed by prescription which consists of a fuel granulate or a granulate of a pyrotechnic mixture, a desensitic explosive and graphite.
  • fuel-containing (inorganic fuels) explosives mixtures in highly explosive bivalve explosives hereinafter also referred to as Blast active charges
  • These blast active charges comprise a centrally located cylindrical HE core core.
  • the blast performance of explosive charges can usually be detected in the form of the pressure pulse.
  • An increase of the pressure pulse under given conditions can be achieved by increasing the peak pressure to be achieved, by a longer-term comparative but lower (lethal) peak pressure, or a combination of both.
  • the mixtures of conventional HE explosives or explosive mixtures with inorganic fuels are to be designated in terms of their oxygen balance as non-ideal explosives or explosive mixtures.
  • This generic term also includes blends based on real or particulate gels, consisting of a liquid organic phase (LOP) and a mostly inorganic fuel.
  • LOP liquid organic phase
  • Literature known pourable mixtures are u. a. PBXN-109 (hexogen / aluminum) and PBXW-114 (octogen / aluminum), compressible compositions known in the literature, which are prepared by mechanically mixing desensitized explosives with aluminum powder: a) 70/30 Composition A3 (91/9 hexogen / wax, microcrystalline ) / Aluminum powder; b) Hexal: 80/20 hexogen (with 5 wt% wax) / aluminum powder.
  • No. 5,472,531 A discloses an extrudable and compressible explosive formulation based on octogen (40% by weight to 80% by weight) and aluminum powder (1% by weight to 40% by weight).
  • CAB is used as a binder and a mixture of BDNPA and BDNPF as an energetic plasticizer.
  • WO 2005/108329 A1 proposes a compressible explosive formulation based on hexogen or octogen (45% by weight to 95% by weight) and passivated aluminum powder (5% by weight to 55% by weight).
  • a possible binder is an ethyl / butyl acrylate copolymer in conjunction with plasticizers such as dioctyl adipate, dioctyl sebacate and isodecyl perlagonate.
  • the explosive charge proposed on the basis of red phosphorus (RP) as inorganic fuel by DE 10 2006 030 678 B4 represents a blast active charge with very high pressure-volume work.
  • RP red phosphorus
  • the fuel-laden Blast active charges have increasingly become the focus of interest among the emergency services in recent years.
  • a blast effect to be achieved can also be achieved or enhanced by a multi-shell structure.
  • a blast effect to be achieved can also be achieved or enhanced by a multi-shell structure.
  • such systems are already common. These consist of a usually centrally arranged burster and initiation charge around which a fuel-containing secondary charge is arranged, which in turn may be surrounded by a shell of pressed fuel powder (with binder surcharges) (double-shell explosive charge).
  • the central booster charge can be conventional HE explosives or explosive mixtures or mixtures of these with inorganic fuels.
  • the secondary charge may consist of a heavily under-exploited explosives active mass or of a pure fuel or fuel mixture, possibly with additional processing aids.
  • US 6,955,732 B1 is the fuels such. B. different aluminum qualities, possibly in admixture with magnesium, aluminum magnesium alloy, titanium in admixture with boron, etc. basically ammonium perchlorate mixed as an oxidizing agent.
  • a binder of the fuel-oxidizer blends Viton® or nitrocellulose is used in amounts of four to six percent by weight.
  • the fuel-oxidizer blends may optionally contain an iron oxide catalyst in amounts of about one weight percent contain.
  • US Pat. No. 5,996,501 describes a large-caliber bivalve charge with an inverse structure (charge core made of metal powder-containing non-ideal explosive mixture (diameter: 10 cm to approx. 30.5 cm) / outer shell made of a "classic" explosive mixture) as a pressure-boosting charge with simultaneously increased splinter acceleration capability
  • the non-ideal explosive mixture of the charge core is composed of an explosive (TNT or RDX), aluminum powder, ammonium perchlorate and wax as a binder.
  • the invention has for its object to provide a blast-effective charge or a manufacturing process for the blast effect with the aim of a cost-effective and thus broader application in infantry applications, such as hand grenades, man portable mortar etc.
  • the invention is based on the idea of producing small blast active charges, in which case common explosives or blended explosives and common fuel qualities are used as raw materials in the first place.
  • EP 2 151 422 A2 has hitherto proposed the use of fuel-containing (RP) explosive formulations in the form of a hand grenade.
  • RP fuel-containing
  • DE 10 2006 030 678 B4 be Detergents based on blends of the explosives CL-20, HMX, RDX or TEX with red phosphorus (10 wt .-% to 80 wt .-%) for optional use as explosive charge (detonative reaction) or pyrotechnic fog (deflagrating reaction) mentioned ,
  • the mentioned high blast effect of these RP-containing explosive blends is the formation of phosphoric acid mist certainly given in a detonative implementation disadvantageous, since this obstructs the forces especially in MOUT scenarios at short to very short deployment distances of a few meters more or less.
  • the present invention is based in turn on the basis of mixtures of inorganic fuels - plus possibly inorganic oxidants - in combination with organic explosives (explosives including nitrocellulose) compressible, two-shell explosive charges up to a mass of 1, 0 kg and a total charge diameter of 8 cm To provide, which have primarily in the enclosed space a pressure impulse enhancing performance.
  • organic explosives explosive including nitrocellulose
  • the blast active charges can consist of a uniform granulate (mixtures of inorganic fuels - plus possibly inorganic oxidants -, organic explosives, a binder or binder system and possibly other additives) or a mixture of fuel granules - with possibly mixed inorganic oxidizing agents - an organic explosive mixture or conventional Sprengstoffgranu- lates optionally be pressed with the addition of graphite.
  • the fuel granules or granules of a pyrotechnic mixture is first prepared separately in a fluidized bed process or a multi-stage kneading, granulation and confectioning process and fractionated from a predetermined particle size> 0.8 mm.
  • the thus prepared fuel granules or granules of a pyrotechnic mixture are mechanically miscible in wide compositional ranges simply with the addition of graphite with available qualities of desensitized explosives.
  • the fuel granulate is produced in a fluidized bed process in such a way that 5% by weight to 90% by weight of the pulverulent inorganic fuel or fuel mixture are introduced into the fluidized bed and the remaining portion of the fuel or fuel mixture (10% by weight to 95%) Wt .-%) in a binder solution consisting of an organic binder and a solvent or solvent mixture suspended in the fluidized bed is injected.
  • the fuel granules or granules of the pyrotechnic mixture in a multi-stage kneading, granulation and confectioning be prepared such that the powdered inorganic fuel or the powdery inorganic fuel mixture or the powdered pyrotechnic mixture in a kneader and after addition of the binder solution consisting of an organic binder and a solvent or solvent mixture, mixed homogeneously, then granulated and solvent-dried in a drum or a coating pan and then dried distributed on trays drying.
  • the binder solution consisting of an organic binder and a solvent or solvent mixture
  • a ketone is used as a solvent or a mixture of a Ke tons and an acetic acid ester as a solvent mixture for the preparation thereof.
  • an alcohol is used as a solvent or a mixture of an alcohol and water as a solvent mixture.
  • the inorganic fuel contained in the fuel granules or granules of a pyrotechnic mixture comprises various qualities of the elements aluminum, boron, magnesium, titanium or zirconium and alloys and mixtures thereof.
  • the inorganic oxidizing agent or oxidizing agent mixture contained in the granules of the pyrotechnic mixture comprises substances from the groups nitrates, oxides or peroxides.
  • the desensitized explosive is a granulate of one in amounts of 2 wt .-% to 8 wt .-% with wax or wax and graphite or Viton® desensitized explosives or a mixture of explosives of cyclotrimethylenetrinitramine (RDX), cycotetramethylenetetranitramine (HMX), pentaerythritol tetranitrate (PETN) or trinitrotoluene (TNT).
  • RDX cyclotrimethylenetrinitramine
  • HMX cycotetramethylenetetranitramine
  • PETN pentaerythritol tetranitrate
  • TNT trinitrotoluene
  • the method is safe, efficient and inexpensive in this form, since when using granulated fuels or pyrotechnic granules in the specified particle size range of 0.2 mm to 0.8 mm can be burned, fuel-rich Blastwirkladitch simply by tumbling the components and then simple compression without pressure equalization discs (US 7,727,347 B1) to use. It enables the provision of fuel-efficient explosive mixtures which are easy to process for use in infantry munitions such as hand grenades or man-portable mortars, etc.
  • the blast active charge is based on compressed blends of granulated inorganic fuels or granulated pyrotechnic mixtures of inorganic fuels and perchlorate-free inorganic oxidants in conjunction with commercial organic explosive granules, with a centrally located, cylindrical high-explosive burster and / or initiation charge.
  • the bulk density and grain shape of the fuel granules or granulated, perchlorate-free pyrotechnic mixtures can be procedurally adapted to the commercial explosive granules to be used and thus enable good miscibility and simple press-technical further processing in other mixing ranges.
  • the compressed blast active charges proposed here have a bivalve structure consisting of a centrally positioned (cylindrical) compressed HE core core 1 and the compressed, fuel-containing explosive mixture 2 arranged around it (compare the single figure).
  • 3 is a two-piece preferably screw-in cargo container, preferably made of plastic, wherein the screw cap has a recess for receiving the spatially separated from the double-shell explosive charge 1, 2 delay detonator unit.
  • a rocker arm igniter with detonator cap and the detonator unit bears the reference numeral 4.
  • the centrally arranged HE core 1 may have a diameter of 8 mm to 50 mm and be composed of one or more compacts.
  • the explosive mixture 2 arranged around it consists of one or more ring tablet press linings having a maximum diameter of 80 mm.
  • the HE core 1 can be made of a uniform granules (blending of organic explosives, a binder or binder system, possibly inorganic fuels and possibly other additives), commercially available desensitized explosives (RDX or HMX), if necessary with the addition of graphite or fuel granules (Up to 20 wt .-%) and graphite, etc. are pressed.
  • a uniform granules blending of organic explosives, a binder or binder system, possibly inorganic fuels and possibly other additives
  • RDX or HMX commercially available desensitized explosives
  • the fuel-containing explosive mixture 2 arranged around the HE core core 1 can be made from a uniform, fuel-containing explosive granulate (eg. in accordance with the statements in WO 2005/108329 A1 or US Pat. No. 5,472,531 A1 or else from a mechanically produced mixture of a desensitized explosive (RDX or HMX) or stabilized nitrocellulose and a fuel granulate, optionally with the addition of graphite.
  • RDX or HMX desensitized explosive
  • the explosive mixtures 2 proposed here are rich in fuel and have fuel or fuel granulate fractions, including any additions of inorganic oxidants.
  • the proposed mixtures of inorganic fuels and organic explosives contain 2 to 15 wt .-% of one or more binders or a binder system and optionally further additives with a total of up to 7 wt .-%.
  • Wax and / or the mixture known by the name of Viton are preferably used as binders, but the use of other binder or binder systems is expressly not excluded hereby.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Air Bags (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un mélange mécanique de substances explosives à traiter par une technique de pressage, ledit mélange étant constitué d'un granulat de combustible ou d'un granulat d'un mélange pyrotechnique, d'une substance explosive flegmatisée et de graphite. Ce procédé est sûr, efficace, flexible et économique et permet de fournir des mélanges de substances explosives contenant du combustible dans une large gamme de compositions destinées à être employées dans des munitions d'infanterie comme des grenades à main ou des munitions pour mortiers manuportables. Selon l'invention, le granulat de combustible ou le granulat d'un mélange pyrotechnique est fabriqué séparément par un procédé à lit fluidisé ou un procédé en plusieurs étapes comprenant malaxage, granulation et préparation, fractionné à une taille de grains de 0,2 mm à 0,8 mm puis mélangé, de façon mécanique et avec ajout de graphite, avec des qualités disponibles de substances explosives flegmatisées, et traité par une technique de pressage.
EP11720400.8A 2010-06-08 2011-05-19 Procédé de fabrication et utilisation d'un mélange de substances explosives contenant du combustible Active EP2580175B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010022983A DE102010022983A1 (de) 2010-06-08 2010-06-08 Zweischalige Sprengladung
PCT/EP2011/002499 WO2011154089A1 (fr) 2010-06-08 2011-05-19 Procédé de fabrication et utilisation d'un mélange de substances explosives contenant du combustible

Publications (2)

Publication Number Publication Date
EP2580175A1 true EP2580175A1 (fr) 2013-04-17
EP2580175B1 EP2580175B1 (fr) 2017-07-05

Family

ID=44367018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11720400.8A Active EP2580175B1 (fr) 2010-06-08 2011-05-19 Procédé de fabrication et utilisation d'un mélange de substances explosives contenant du combustible

Country Status (3)

Country Link
EP (1) EP2580175B1 (fr)
DE (1) DE102010022983A1 (fr)
WO (1) WO2011154089A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019008980A1 (de) * 2019-12-20 2021-06-24 TDW Gesellschaft für verteidigungstechnische Wirksysteme mit beschränkter Haftung Polymergebundener Sprengstoff
CN114907176B (zh) * 2022-05-20 2023-05-16 四川钛程钛业有限公司 高猛爆炸复合用炸药及其制备方法

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Also Published As

Publication number Publication date
EP2580175B1 (fr) 2017-07-05
DE102010022983A1 (de) 2011-12-08
WO2011154089A1 (fr) 2011-12-15

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