EP1241150B1 - Procédé de fabrication et de moulage de charges explosives ou propulsives pour fusée, liées par des polymères - Google Patents

Procédé de fabrication et de moulage de charges explosives ou propulsives pour fusée, liées par des polymères Download PDF

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Publication number
EP1241150B1
EP1241150B1 EP01129902A EP01129902A EP1241150B1 EP 1241150 B1 EP1241150 B1 EP 1241150B1 EP 01129902 A EP01129902 A EP 01129902A EP 01129902 A EP01129902 A EP 01129902A EP 1241150 B1 EP1241150 B1 EP 1241150B1
Authority
EP
European Patent Office
Prior art keywords
metal powder
plastic
explosive
groups
rocket propellants
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
Application number
EP01129902A
Other languages
German (de)
English (en)
Other versions
EP1241150A2 (fr
EP1241150A3 (fr
Inventor
Paul Dr. Wanninger
Rainer Böhm
Horst Pinkernelle
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 EP1241150A2 publication Critical patent/EP1241150A2/fr
Publication of EP1241150A3 publication Critical patent/EP1241150A3/fr
Application granted granted Critical
Publication of EP1241150B1 publication Critical patent/EP1241150B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • C06B45/30—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component
    • C06B45/32—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an inorganic explosive or an inorganic thermic component the coating containing an 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
    • C06B21/0008—Compounding the ingredient
    • C06B21/0025—Compounding the ingredient the ingredient being a polymer bonded explosive or thermic component

Definitions

  • the invention relates to a method for producing pourable plastic bonded explosive charges or rocket fuels.
  • Plastic-bonded explosive charges have a relatively high insensitivity despite a high active power on. They consist of reaction polymers in which crystalline before hardening Explosives, such as octogen, hexogen, pentaerythritol tetranitrate, etc., are incorporated. there the polymer content is about 10 to 20 wt .-%.
  • a problem in the production of plastic-bound explosive charges is that with increasing Solid content, i. with increasing content of explosive, the viscosity of the mixture can increase so that a pouring of this mixture is impossible.
  • the theoretical Limit for a flowable mixture is 92 wt .-%. However, it has been shown that the practical limit for flowable mixtures is about 90 wt .-%.
  • There are also explosive charges with such a high solids content only pourable when the particle sizes of the for the Explosive charge used explosive crystals within a given diameter interval lie, so that a relatively expensive screening of grain fractions is required.
  • the solids content and thus the performance increase plastic-bound explosive charges without increasing the viscosity, that 0.1 to 10 wt .-% of the solid when mixed with the curable plastic binder as the finest grain with a mean grain size less than 25 microns, preferably less than 8 microns added becomes.
  • the invention is based on the object, a method for producing insensitive pourable plastic bonded explosive charges or rocket propellants with a high (e.g., 90%) solids content, with an increase the viscosity by polar deposited on the metal surface of the metal powder Groups is avoided.
  • R organic radical
  • the polar groups can no longer react with the isocyanates and the specific surface area of the respective metal powder decreases.
  • the viscosity of the explosive charge decreases.
  • Suitable organic radicals are all alkyl and aryl radicals, the alkyl radicals being more reactive.
  • tungsten powder particles size between 3 and 5 microns
  • a solution of 900 g of pentane and 20 g of trimethylchlorosilane were placed in a solution of 900 g of pentane and 20 g of trimethylchlorosilane and stirred for 5 minutes. Subsequently, the tungsten powder was filtered off and dried in a drying oven. While the specific surface before treatment with Me3SiCl was 0.1978 m 2 / g, after treatment it was only 0.1880 m 2 / g, which subsequently led to a reduction of the viscosity of the explosive mixture from approx. 600 - 800 Pas to approx 400 Pas led.
  • the preparation of the explosive charges according to the invention can be carried out, for example, by means of the following typical formulations: 80-88% by weight Crystalline explosive, eg RDX or HMX 10-20% by weight Binder, eg 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
  • the grain size of the respective metal powder should be between 0.1 and 5 ⁇ m lie.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Powder Metallurgy (AREA)
  • Lubricants (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Claims (4)

  1. Procédé de fabrication de charges explosives ou de charges propulsives pour fusée, plastiques coulables, dans lequel
    a) on ajoute à la charge explosive une poudre métallique dont les grains ont une forme essentiellement sphérique et ont une taille comprise entre 0,1 et 5 µm et
    b) avant l'incorporation de la poudre métallique dans le mélange d'explosifs, on sature les groupes polaires de la poudre métallique par des groupes SiR3, R représentant un radical organique.
  2. Procédé selon la revendication 1, caractérisé en ce que le radical organique est un radical alkyle ou un radical aryle.
  3. Procédé selon la revendication 2, caractérisé en ce que pour saturer les groupes polaires de la poudre métallique, on utilise du triméthylchlorosilane (Me3SiCl).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que comme poudre métallique, on utilise un ou plusieurs des métaux suivants : vanadium, niobium, tantale, chrome, molybdène et tungstène.
EP01129902A 2001-02-20 2001-12-15 Procédé de fabrication et de moulage de charges explosives ou propulsives pour fusée, liées par des polymères Expired - Lifetime EP1241150B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10107948A DE10107948A1 (de) 2001-02-20 2001-02-20 Verfahren zur Herstellung gießfähiger kunststoffgebundener Sprengladungen oder Raketentreibstoffe
DE10107948 2001-02-20

Publications (3)

Publication Number Publication Date
EP1241150A2 EP1241150A2 (fr) 2002-09-18
EP1241150A3 EP1241150A3 (fr) 2003-11-05
EP1241150B1 true EP1241150B1 (fr) 2005-09-07

Family

ID=7674732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129902A Expired - Lifetime EP1241150B1 (fr) 2001-02-20 2001-12-15 Procédé de fabrication et de moulage de charges explosives ou propulsives pour fusée, liées par des polymères

Country Status (5)

Country Link
US (1) US6558488B2 (fr)
EP (1) EP1241150B1 (fr)
DE (2) DE10107948A1 (fr)
IL (1) IL148248A (fr)
NO (1) NO321219B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050076560A1 (en) * 2001-08-27 2005-04-14 Wiley David B. Alkynylsilanes as fuels and rocket propellants
US8545646B1 (en) * 2005-06-10 2013-10-01 The United States Of America As Represented By The Secretary Of The Navy High-density rocket propellant
US8894739B1 (en) * 2007-05-23 2014-11-25 The United States Of America As Represented By The Secretary Of The Navy Metal powders with improved flowability
US7943084B1 (en) * 2007-05-23 2011-05-17 The United States Of America As Represented By The Secretary Of The Navy Metal powders with improved flowability
DE102010052628A1 (de) 2010-11-29 2012-05-31 Rheinmetall Waffe Munition Gmbh Perchloratfreie pyrotechnische Mischung
RU2524500C1 (ru) * 2013-02-05 2014-07-27 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") ЗАРЯД ДЛЯ ОХОТНИЧЬЕГО ПАТРОНА 7,62×39-9 (С ПУЛЕЙ МАССОЙ 9 г)
RU2524494C1 (ru) * 2013-03-06 2014-07-27 Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") ЗАРЯД ДЛЯ ОХОТНИЧЬЕГО ПАТРОНА 7,62×39-10 (С ПУЛЕЙ МАССОЙ 10 г)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647047A (en) * 1950-03-06 1953-07-28 Warren B Richardson Explosive composition
USRE27025E (en) * 1960-02-01 1971-01-12 Mcdonald Louis Process of conditioning particulate materials with an organosilicon coating for use in organic explosives.
CA928927A (en) * 1967-11-14 1973-06-26 Kawakita Takao Nylon molding article and process for producing the same
CA1060660A (fr) * 1976-10-28 1979-08-21 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Compositions explosives
US4115165A (en) * 1977-06-23 1978-09-19 Atlas Powder Company Hydrophobic aluminum sensitizing agents for explosives
NO144666C (no) * 1980-02-29 1981-10-14 Dyno Industrier As Fremgangsmaate for fremstilling av aluminiumholdige hoeyenergisprengstoffblandinger
DE3234978C1 (de) * 1982-09-22 1984-01-26 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Gegossene Sprengladung
CA1207588A (fr) * 1983-09-23 1986-07-15 Gordon K. Briosi Contenant a double fonction pour explosifs amorces
US4689250A (en) * 1984-11-16 1987-08-25 Siemens Aktiengesellschaft Cross-linked polymer coated metal particle filler compositions
US4696641A (en) * 1986-08-11 1987-09-29 Gte Products Corporation Primer material and photoflash lamp
DE3804396C1 (en) * 1988-02-12 1989-05-18 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De Process for producing plastic-bonded explosives
US5209976A (en) * 1988-07-04 1993-05-11 Matsushita Electric Industrial Co., Ltd. Structure having a surface covered with a monomolecular film
DE3934368C1 (fr) * 1989-10-14 1990-11-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
US5547526A (en) * 1990-03-06 1996-08-20 Daimler-Benz Aerospace Ag Pressable explosive granular product and pressed explosive charge
US5123981A (en) * 1990-06-14 1992-06-23 Atlas Powder Company Coated solid additives for explosives
US5451277A (en) * 1991-05-09 1995-09-19 Aerojet-General Corporation Preparing solid energetic compositions from coated particles and liquid oxidizers

Also Published As

Publication number Publication date
EP1241150A2 (fr) 2002-09-18
NO321219B1 (no) 2006-04-03
IL148248A0 (en) 2002-09-12
NO20016257L (no) 2002-08-21
IL148248A (en) 2007-05-15
DE10107948A1 (de) 2002-08-22
US20030056865A1 (en) 2003-03-27
DE50107360D1 (de) 2005-10-13
EP1241150A3 (fr) 2003-11-05
US6558488B2 (en) 2003-05-06
NO20016257D0 (no) 2001-12-20

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