EP3317606B1 - Système de charges explosives pour projectiles d'artillerie - Google Patents

Système de charges explosives pour projectiles d'artillerie Download PDF

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Publication number
EP3317606B1
EP3317606B1 EP15739498.2A EP15739498A EP3317606B1 EP 3317606 B1 EP3317606 B1 EP 3317606B1 EP 15739498 A EP15739498 A EP 15739498A EP 3317606 B1 EP3317606 B1 EP 3317606B1
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EP
European Patent Office
Prior art keywords
powder type
charge system
powder
propelling charge
partial
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.)
Active
Application number
EP15739498.2A
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German (de)
English (en)
Other versions
EP3317606A1 (fr
Inventor
Peter ZOSS
Dominik Antenen
Ulrich Schaedeli
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.)
Nitrochemie Wimmis AG
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Nitrochemie Wimmis AG
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Publication of EP3317606A1 publication Critical patent/EP3317606A1/fr
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    • 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
    • C06B45/20—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component
    • C06B45/28—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component the component base containing nitrocellulose and nitroglycerine
    • 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
    • C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
    • 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
    • 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
    • C06B45/20—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component
    • C06B45/22—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component the coating containing an organic compound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/38—Separately-loaded propellant charges, e.g. cartridge bags

Definitions

  • the 105 mm howitzers M101 and M2 were the light field howitzers of the United States for a long time and were used extensively in European and Pacific war zones during World War II.
  • the 105 mm family was completed by the air-loaded version M3, which was based on the M2 system, but had a 690 mm shorter barrel and a more effective reverse brake.
  • the M3 howitzer could fire the same ammunition as the M2 version, but because of the shorter barrel more explosive powder had to be used for the drive. Production of the M2 and M3 systems started in 1941. In use, these weapon systems impressed with their high accuracy.
  • the LG1 should also be mentioned as another 105 mm howitzer system in widespread use.
  • This modern system is also outsourced, is valued for its low weight and high target accuracy with a relatively long range and is produced by GIAT Industries (now the Nexter Group).
  • This system is available today still active in the armies of Belgium, Canada, Colombia, Indonesia, Singapore and Thailand.
  • the maximum possible amount of gas is released to accelerate the projectile in the gun barrel, so that the powder burns off at a relatively high pressure level, which may go as far as the system limit of the 105 mm howitzer system used. Since the powder burnup is accelerated significantly by higher pressures, the powders used in the higher loads must be designed accordingly, i. H. they have to react much more lazily compared to the powders of the deep charges.
  • the propellant charge system to be protected can in principle also be used in other artillery caliber areas, e.g. in 155mm systems.
  • the wall thicknesses of the powders used would have to be adjusted in a manner known to those skilled in the art.
  • the resulting powder has the following physical properties: 4.66 mm outer diameter, 9.03 mm length, 1.05 mm mean wall thickness and 0.15 mm hole diameter, 3653 J / g heat content and 957 g / l bulk density.
  • the novel charge build-up consisting of the combination of two powder types according to the invention with and without surface treatment, i.e. with the second inert plasticizer diffused in and without the second inert plasticizer diffused into the deep charges 1 - 2 in the cold region, only very small drops in the muzzle velocity occur, namely - 5.9 m / s in zone 1 and 8.6 m / s in zone 2.
  • the energy conversion into kinetic Energy is very efficient both in Zone 1, where only the powder is used without surface treatment, and in Zone 2, where the combination of both powder types is used with and without surface treatment, which results in high thermal efficiencies of 33% (Zone 1) and 32% (Zone 2) expresses, despite the low peak gas pressures of ⁇ 500 bar.
  • the amount of powder was set in such a way that a muzzle velocity of 652 m / s results at 21 ° C.
  • the peak gas pressure that arises for this speed is only 3371 bar, ie the ratio v 0 / p max is, as hoped, relatively high.
  • the pressure reserve of 600 bar could be used if necessary to increase performance by means of an additional charge for increased range.
  • the Fig. 1 shows a propellant charge system 1 according to the invention with six partial charges 2.1, 3.1 - 3.5.
  • the partial loads 2.1, 3.1 - 3.5 are each filled in an essentially cylindrical cloth bag.
  • the propellant charge system 1 shown comprises five second partial charges 3.1-3.5 with a second powder type as the drive, which in the region of near-surface zones has a penetration depth of at most 400 micrometers between 2 to 10 percent by weight of a second inert plasticizer.
  • the propellant charge system 1 further comprises a first partial charge 2.1 with a first powder type as the drive, which has no second inert plasticizer in zones near the surface.
  • the first part load 2.1 serves to cover the lowest area of the shot board, while the second part loads 3.1 - 3.5 can cover the upper areas of the shot board.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (11)

  1. Système de charge propulsive destiné au tir de projectiles d'artillerie comprenant au moins deux parties de charge, les parties de charge comportant chacune comme entraînement un type de poudre, comprenant de la nitrocellulose, au moins une source d'énergie cristalline comprenant au moins un composé nitramine et au moins un premier plastifiant inerte, caractérisé en ce qu'au moins une partie de charge comprend un premier type de poudre et l'au moins une autre partie de charge comprend un deuxième type de poudre, le deuxième type de poudre comportant entre 2 et 10 % en poids d'un deuxième plastifiant inerte dans la région de zones proches de la surface à une profondeur de pénétration de 400 micromètres maximum et le premier type de poudre ne comportant pas de deuxième plastifiant inerte dans des zones proches de la surface.
  2. Système de charge propulsive selon la revendication 1, caractérisé en ce que le premier et le deuxième type de poudre comprennent des grains à géométrie cylindrique circulaire pourvus de canaux longitudinaux s'étendant dans la direction axiale, de préférence les grains du premier type de poudre ayant de un à quatre canaux longitudinaux et les grains du deuxième type de poudre ayant de sept à dix-neuf canaux longitudinaux.
  3. Système de charge propulsive selon la revendication 2, caractérisé en ce que les grains du premier type de poudre ont une épaisseur de paroi de 0,4 à 1,2 mm, de préférence de 0,5 à 1,0 mm et les grains du deuxième type de poudre ont une épaisseur de paroi de 0,3 à 1,1 mm, de préférence de 0,4 à 0,9 mm.
  4. Système de charge propulsive selon l'une des revendications 1 à 3, caractérisé en ce que la concentration du deuxième plastifiant inerte dans les zones du deuxième type de poudre qui sont proches de la surface est comprise entre 3 et 6 % en poids.
  5. Système de charge propulsive selon l'une des revendications 1 à 4, caractérisé en ce que l'au moins une source d'énergie cristalline comprend de l'hexogène ou de l'octogène, notamment à une concentration de 5 à 15 % en poids.
  6. Système de charge propulsive selon l'une des revendications 1 à 5, caractérisé en ce que le premier et le deuxième type de poudre comprennent l'au moins un premier plastifiant inerte à une concentration de 1 à 5 % en poids.
  7. Système de charge propulsive selon l'une des revendications 1 à 6, caractérisé en ce que l'au moins un premier plastifiant comprend un composé ester d'acide carboxylique, choisi notamment dans les groupes des esters de phtalates, des esters de citrates, des esters de téréphtalates, des esters de stéarates ou des esters d'adipates.
  8. Système de charge propulsive selon l'une des revendications 1 à 7, caractérisé en ce que le deuxième plastifiant inerte est au moins un composé du groupe comprenant le camphre, les phtalates de dialkyle et les dialkyldiphénylurées.
  9. Système de charge propulsive selon l'une des revendications 1 à 8, caractérisé en ce que les au moins deux parties de charge sont logées chacune dans un sac en tissu cylindrique, les sacs en tissu comportant de préférence une ouverture de passage le long de leur axe longitudinal.
  10. Système de charge propulsive selon l'une des revendications 1 à 9, caractérisé en ce qu'au moins une des au moins deux parties de charge comporte au moins un morceau de feuille d'étain comme agent de décuivrage.
  11. Utilisation d'un système de charge propulsive selon l'une des revendications 1 à 10 pour le tir d'un projectile d'artillerie, une à trois parties de charge comprenant le premier type de poudre étant utilisées pour couvrir les portées de tir dans la zone inférieure d'un abaque de tir et de préférence une à six parties de charge supplémentaires comprenant le deuxième type de poudre étant utilisées pour couvrir les portées de tir dans la zone supérieure de l'abaque de tir.
EP15739498.2A 2015-07-03 2015-07-03 Système de charges explosives pour projectiles d'artillerie Active EP3317606B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2015/000097 WO2017004726A1 (fr) 2015-07-03 2015-07-03 Système de charges explosives pour projectiles d'artillerie

Publications (2)

Publication Number Publication Date
EP3317606A1 EP3317606A1 (fr) 2018-05-09
EP3317606B1 true EP3317606B1 (fr) 2020-06-10

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Family Applications (1)

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EP15739498.2A Active EP3317606B1 (fr) 2015-07-03 2015-07-03 Système de charges explosives pour projectiles d'artillerie

Country Status (4)

Country Link
EP (1) EP3317606B1 (fr)
KR (1) KR20180055762A (fr)
CA (1) CA2990862C (fr)
WO (1) WO2017004726A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2555616B (en) 2016-11-04 2021-10-06 Bae Systems Plc Modular charge container
GB2555618B (en) * 2016-11-04 2021-12-29 Bae Systems Plc Munition charge container
KR102561531B1 (ko) * 2023-02-02 2023-07-28 최은영 포신 강선의 탈동기능을 갖는 추진장약

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5747723A (en) * 1996-11-26 1998-05-05 The United States Of America As Represented By The Secretary Of The Army Modular artillery charge system
EP1164116B1 (fr) 2000-06-15 2005-01-26 Nitrochemie Wimmis AG Procédé de production de matière à haute énergie fonctionelle
US6666141B2 (en) * 2001-07-09 2003-12-23 United Defense, L.P. Variable increment modular artillery propellant
SE523997C2 (sv) * 2002-02-08 2004-06-15 Nexplo Bofors Ab Avkoppringsmedel
EP1857429B1 (fr) 2006-05-19 2013-03-27 Nitrochemie Wimmis AG Propulseur pour l'accélération de projectiles
BR112014005789B1 (pt) * 2011-09-15 2020-06-23 Nitrochemie Wimmis Ag Sistema propelente multiperfurado isento de nitroglicerina, seu uso e método para produzir propelentes multiperfurados
US20150321969A1 (en) 2013-01-29 2015-11-12 Nitrochemie Wimmis Ag Powder for accelerating projectiles for mortar systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
KR20180055762A (ko) 2018-05-25
CA2990862C (fr) 2022-05-31
CA2990862A1 (fr) 2017-01-12
EP3317606A1 (fr) 2018-05-09
WO2017004726A1 (fr) 2017-01-12

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