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EP2516355B1 - Schmelzbare/giessbare explosive zusammensetzung mit geringem schadenpotenzial - Google Patents

Schmelzbare/giessbare explosive zusammensetzung mit geringem schadenpotenzial Download PDF

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Publication number
EP2516355B1
EP2516355B1 EP10810766.5A EP10810766A EP2516355B1 EP 2516355 B1 EP2516355 B1 EP 2516355B1 EP 10810766 A EP10810766 A EP 10810766A EP 2516355 B1 EP2516355 B1 EP 2516355B1
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EP
European Patent Office
Prior art keywords
mass
insensitive
composition
onta
explosive
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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.)
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Application number
EP10810766.5A
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English (en)
French (fr)
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EP2516355A1 (de
Inventor
Christophe Coulouarn
Stéphane BULOT
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.)
KNDS Ammo France SA
Original Assignee
Nexter Munitions SA
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Priority to PL10810766T priority Critical patent/PL2516355T3/pl
Publication of EP2516355A1 publication Critical patent/EP2516355A1/de
Application granted granted Critical
Publication of EP2516355B1 publication Critical patent/EP2516355B1/de
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    • 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
    • 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
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/02—Compositions or products which are defined by structure or arrangement of component of product comprising particles of diverse size or shape

Definitions

  • the patent EP814069 thus describes a number of compositions associating a fuse part and a solid part.
  • the fusible portion essentially comprises a nitrated aromatic such as Trinitrotoluene (TNT) which is associated with a phlegmatizer such as wax.
  • TNT Trinitrotoluene
  • the solid part generally comprises oxynitrotriazole (ONTA) which is a grain explosive whose vulnerability is reduced. ONTA is more particularly described by the patent EP-210881 .
  • RDX reduced sensitivity Hexogen
  • This insensitive Hexogene (known commercially under the brand name i-RDX deposited by Eurenco or under the name RS-RDX) is described in particular by US Pat. FR2887544 and FR2917169 .
  • Table 1 below explains the results obtained: ⁇ b> Table 1 ⁇ / b> Explosive compositions Number of cards Impact pressure (Giga Pascals) TNT 40% / RDX insensitive 60% (supplier A) 234 1.7 TNT 40% / RDX insensitive 60% (supplier B) 234 1.7 TNT 40% / RDX not insensitive 60% 235 1.7
  • the aim of the invention is to propose a fuse / flowable explosive composition with reduced vulnerability and in which the proportion of Hexogen (RDX) is increased relative to the proportion of oxynitrotriazole (ONTA) (which increases the detonation performances) but without diminishing the insensitivity of the composition thus obtained.
  • RDX Hexogen
  • ONTA oxynitrotriazole
  • the subject of the invention is an explosive fuse / castable composition with reduced vulnerability, and comprising, on the one hand, a fusible part formed of at least one fusible explosive, and on the other hand a solid part comprising oxynitrotriazole.
  • ONTA and Hexogen (RDX), a composition which is characterized in that the Hexogen is a Hexogen with reduced sensitivity, the granulometry of the insensitive Hexogene being between 315 micrometers and 800 micrometers, while the particle size of ONTA is between 200 micrometers and 400 micrometers, ONTA also has a bulk density greater than or equal to 0.95 g / cm 3 .
  • the fusible explosive may be chosen from the following compounds: Trinitrotoluene, 2,4,6-Trinitro-N-methyl-Aniline, 2,4,6-Trinitro-3-methylphenol, 3 -Amino-Trinitrotoluene, 2,4,6-Trinitro-Aniline, 1,3,8-TriNitroNaphthalene and its isomeric mixture fusible at 115 ° C, 2,4-dinitroanisole (DNAN).
  • the fusible portion will advantageously be between 30% and 40% of the total mass of the composition.
  • the inventors have however chosen a larger particle size (thus a priori less suitable) because its association with the 200 to 400 micrometer particle size cut for ONTA leads to a lower porosity for the ONTA / RDX / Aluminum granular mixture and also for the composition. explosive which is then performed after casting TNT.
  • ONTA type 1 is an ONTA with rounded, spheroidal grains with relatively few surface irregularities.
  • ONTA type 2 is an ONTA whose grains have a more irregular outer shape.
  • the figure 1 shows a grain photograph of a type 1 ONTA.
  • figure 2 shows a grain photograph of a type 2 ONTA. These photographs were taken under a scanning electron microscope.
  • the apparent density ⁇ b of ONTA Type 2 tested is between 0.75 g / cm3 and 0.85 g / cm3.
  • the inventors have therefore sought to combine particle size fractions of oxynitrotriazole (having the most rounded grains) and insensitive Hexogene which make it possible to reduce this porosity. Cutting optimization granulometry and the choice of a ONTA with high apparent density have resulted in compactness of the optimal granular phase.
  • This composition has a detonation velocity of 7250 m / s and a sensitivity criterion Cs of 115 Kcal 2 / mol. Its porosity is 0.3%.
  • This composition has a detonation velocity of 7090 m / s and a sensitivity criterion Cs of 108 Kcal 2 / mol. Its porosity is 0.3%.
  • This composition has a detonation velocity of 7177 m / sec and a test sensitivity of Cs 2 112 kcal / mol. Its porosity is 0.4%.
  • This composition has a detonation velocity of 7075 m / s and a sensitivity criterion Cs of 106 Kcal 2 / mol. Its porosity is 0.4%.
  • the explosive composition according to the invention can be used for the loading of all types of projectiles and military heads.
  • This composition can be used to load artillery shells or the bodies of bombs or missiles.
  • the solid part will then be incorporated in the fused part by homogenizing the mixture (in a tank equipped with a mixer).
  • the melting and mixing will be carried out under vacuum.
  • Casting in the ammunition body will also be performed under vacuum.
  • a casting equipment that can be used for such a vacuum casting is described by the patent FR2923005 .

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)

Claims (8)

  1. Explosive, schmelzbare/gießfähige Zusammensetzung mit verminderter Verletzbarkeit und aufweisend einerseits einen schmelzbaren Teil, welcher aus mindestens einem schmelzbaren Sprengstoff gebildet ist und andererseits einen festen Teil, welcher Oxinitrotriazol (ONTA) und Hexogen (RDX) und optional Aluminium aufweist, wobei die Zusammensetzung dadurch gekennzeichnet ist, dass das Hexogen ein Hexogen mit verminderter Empfindlichkeit ist, die Korngröße des unempfindlichen Hexogens zwischen 315 Mikrometer und 800 Mikrometer liegt, während die Korngröße des ONTA zwischen 200 Mikrometer und 400 Mikrometer liegt, wobei das ONTA außerdem eine Schüttdichte von größer oder gleich 0,95 g/cm3 besitzt,
    und dass der feste Teil Folgendes verknüpft:
    - 15% bis 35% in Masse Oxinitrotriazol,
    - 24% bis 50% in Masse unempfindliches Hexogen und
    - 0 bis 25% in Masse Aluminium,
    wobei die Masseprozente auf die Gesamtmasse des festen Teils bezogen sind.
  2. Explosive Zusammensetzung nach Anspruch 1, dadurch gekennzeichnet, dass der schmelzbare Sprengstoff aus den folgenden Verbindungen ausgewählt wird: Trinitrotoluen, 2,4,6-Trinitro-N-Methylanilin, 2,4,6-Trinitro-3-Methylphenol, 3-Amino-Trinitrotoluen, 2,4,6-Trinitro-Anilin, 1,3,8-Trinitronaphtalen und seine Mischung von bei 115°C schmelzbaren Isomeren, 2,4-Dinitroanisol (DNAN).
  3. Explosive Zusammensetzung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der schmelzbare Teil zwischen 30% und 40% der Gesamtmasse der Zusammensetzung bildet.
  4. Explosive Zusammensetzung nach Anspruch 2, dadurch gekenntzeichnet, dass sie die folgende Zusammensetzung besitzt:
    - 15% bis 30% in Masse Oxinitrotriazol,
    - 15% bis 30% in Masse unempfindliches Hexogen,
    - 0 bis 15% in Masse Aluminium,
    - 20 % bis 33 % in Masse Trinitrotoluen,
    - 7% bis 10% in Masse einer Mischung aus Wachs und Zusatzstoffen zum Gießen,
    wobei die Masseprozente auf die Gesamtmasse der Zusammensetzung bezogen sind.
  5. Explosive Zusammensetzung nach Anspruch 4, dadurch gekennzeichnet, dass sie die folgende Zusammensetzung besitzt:
    - 21% in Masse Oxinitrotriazol,
    - 27% in Masse unempfindliches Hexogen,
    - 14% in Masse Aluminium,
    - 31 % in Masse Trinitrotoluen,
    - 7% in Masse einer Mischung aus Wachs und Zusatzstoffen zum Gießen.
  6. Explosive Zusammensetzung nach Anspruch 4, dadurch gekennzeichnet, dass sie die folgende Zusammensetzung besitzt:
    - 24% in Masse Oxinitrotriazol,
    - 24% in Masse unempfindliches Hexogen,
    - 14% in Masse Aluminium,
    - 31 % in Masse Trinitrotoluen,
    - 7% in Masse einer Mischung aus Wachs und Zusatzstoffen zum Gießen.
  7. Explosive Zusammensetzung nach Anspruch 4, dadurch gekennzeichnet, dass sie die folgende Zusammensetzung besitzt:
    - 29% in Masse Oxinitrotriazol,
    - 19% in Masse unempfindliches Hexogen,
    - 14% in Masse Aluminium,
    - 31 % in Masse Trinitrotoluen,
    - 7% in Masse einer Mischung aus Wachs und Zusatzstoffen zum Gießen.
  8. Explosive Zusammensetzung nach Anspruch 4, dadurch gekennzeichnet, dass sie die folgende Zusammensetzung besitzt:
    - 33% in Masse Oxinitrotriazol,
    - 15% in Masse unempfindliches Hexogen,
    - 14% in Masse Aluminium,
    - 31 % in Masse Trinitrotoluen,
    - 7% in Masse einer Mischung aus Wachs und Zusatzstoffen zum Gießen.
EP10810766.5A 2009-12-23 2010-12-20 Schmelzbare/giessbare explosive zusammensetzung mit geringem schadenpotenzial Active EP2516355B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10810766T PL2516355T3 (pl) 2009-12-23 2010-12-20 Mało wrażliwe, odlewane kompozycje wybuchowe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0906239A FR2954308B1 (fr) 2009-12-23 2009-12-23 Composition explosive fusible/coulable et a vulnerabilite reduite
PCT/FR2010/000853 WO2011086246A1 (fr) 2009-12-23 2010-12-20 Composition explosive fusible/coulable et a vulnerabilite reduite

Publications (2)

Publication Number Publication Date
EP2516355A1 EP2516355A1 (de) 2012-10-31
EP2516355B1 true EP2516355B1 (de) 2017-08-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10810766.5A Active EP2516355B1 (de) 2009-12-23 2010-12-20 Schmelzbare/giessbare explosive zusammensetzung mit geringem schadenpotenzial

Country Status (7)

Country Link
US (1) US9242906B2 (de)
EP (1) EP2516355B1 (de)
ES (1) ES2645933T3 (de)
FR (1) FR2954308B1 (de)
NO (1) NO2516355T3 (de)
PL (1) PL2516355T3 (de)
WO (1) WO2011086246A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984885B1 (fr) * 2011-12-21 2014-07-04 Nexter Munitions Procede de fabrication de granules d'une composition explosive comprimable et materiau esplosif obtenu avec un tel procede
DE102020001794A1 (de) * 2020-03-18 2021-09-23 Diehl Defence Gmbh & Co. Kg Schmelzgießbare Sprengstoffwirkmasse
CN111948369B (zh) * 2020-07-23 2022-11-15 西安近代化学研究所 超临界法制备的钝化nto包覆质量测评方法
CN113378250B (zh) * 2021-04-23 2022-11-08 中国兵器装备集团自动化研究所有限公司 用于弹体熔铸炸药凝固成型的参数适配系统及生成方法
FR3123649B1 (fr) 2021-06-03 2025-07-18 Thales Composition explosive fusible/coulable et son procédè de fabrication
CN114577670B (zh) * 2021-12-23 2024-08-13 西安近代化学研究所 一种熔铸炸药熔态密度的测试方法
FR3141172B1 (fr) 2022-10-20 2024-10-04 Thales Sa Procédé de fabrication d'une composition explosive fusible/coulable.

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DE2506883C1 (de) * 1975-02-19 1980-10-02 Messerschmitt Boelkow Blohm Verfahren zur Herstellung von Hochbrisanz-Sprengstofformkoerpern
US3994756A (en) * 1975-11-26 1976-11-30 The United States Of America As Represented By The Secretary Of The Army Castable composite explosive compositions containing a mixture of trinitrobenzene and trinitroxylene
FR2584066B1 (fr) 1985-06-28 1987-08-07 Poudres & Explosifs Ste Nale Utilisation du 5-oxo 3-nitro, 1,2,4-triazole comme substance explosive et compositions pyrotechniques contenant du 5-oxo 3-nitro 1,2,4-triazole.
DE3605634A1 (de) * 1986-02-21 1987-08-27 Messerschmitt Boelkow Blohm Verfahren zur behandlung kristalliner sprengstoffe fuer hochleistungssprengladungen
DE3804397C1 (en) * 1988-02-12 1989-09-07 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De Process for producing compressed explosive charges
FR2677977A1 (fr) * 1991-06-21 1992-12-24 Giat Ind Sa Procede de fabrication d'une charge explosive de grande puissance et dispositif de mise en óoeuvre du procede.
FR2738562B1 (fr) * 1995-09-08 1997-10-03 Poudres & Explosifs Ste Nale Compositions explosives coulees-fondues
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DE19719073A1 (de) * 1997-05-06 1998-11-12 Diehl Stiftung & Co Unempfindliche, preßbare Sprengstoffmischung
US5996501A (en) * 1997-08-27 1999-12-07 The United States Of America As Represented By The Secretary Of The Air Force Blast and fragmentation enhancing explosive
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FR2923005B1 (fr) 2007-10-29 2012-10-26 Nexter Munitions Procede de coulee d'un materiau explosif et dispositif de coulee mettant en oeuvre un tel procede
EP2217043B1 (de) 2007-11-06 2019-01-30 Mitsubishi Materials Corporation Verfahren zur herstellung eines substrats für ein leistungsmodul

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Also Published As

Publication number Publication date
FR2954308A1 (fr) 2011-06-24
US20120305149A1 (en) 2012-12-06
NO2516355T3 (de) 2018-01-20
FR2954308B1 (fr) 2012-02-24
ES2645933T3 (es) 2017-12-11
US9242906B2 (en) 2016-01-26
EP2516355A1 (de) 2012-10-31
WO2011086246A1 (fr) 2011-07-21
PL2516355T3 (pl) 2017-12-29

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