EP2106526A1 - Pièce moulée ainsi que procédé de fabrication de la pièce moulée - Google Patents

Pièce moulée ainsi que procédé de fabrication de la pièce moulée

Info

Publication number
EP2106526A1
EP2106526A1 EP07847024A EP07847024A EP2106526A1 EP 2106526 A1 EP2106526 A1 EP 2106526A1 EP 07847024 A EP07847024 A EP 07847024A EP 07847024 A EP07847024 A EP 07847024A EP 2106526 A1 EP2106526 A1 EP 2106526A1
Authority
EP
European Patent Office
Prior art keywords
molded part
inert
energetic
felt
molding
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
EP07847024A
Other languages
German (de)
English (en)
Other versions
EP2106526B1 (fr
Inventor
Walter Lebacher
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 Aschau GmbH
Original Assignee
Nitrochemie Aschau 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 Nitrochemie Aschau GmbH filed Critical Nitrochemie Aschau GmbH
Publication of EP2106526A1 publication Critical patent/EP2106526A1/fr
Application granted granted Critical
Publication of EP2106526B1 publication Critical patent/EP2106526B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/188—Manufacturing processes therefor
    • 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
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/192—Cartridge cases characterised by the material of the casing wall

Definitions

  • Certain parts of a cartridge, especially with a combustible sleeve, are made of inert material. Thus, such inert materials are provided at joints between the drive and projectile.
  • Non-flammable inert molded parts must be removed erosively by mechanical action of the TLP bodies and the hot gases.
  • corresponding connecting parts which are known as cartridge caps in 120 mm cartridges, must be disassembled during firing and / or so weakened by erosion that only fractions remain. This is usually done with pressure increase and formation of hot gases in the cargo space. The destroyed parts are then flushed with the gas flow from cargo space and gun barrel.
  • the action of the combustion gases is not always sufficient, so that larger and especially thicker residual pieces remain in the cargo space as residues or can adhere to the cone piece between the cargo space and the pipe.
  • the additional use of polyethanes in the moldings to form a corresponding strength counteracts the desired Abtragungsmechanismen.
  • the invention takes on the task to eliminate the aforementioned problems, in particular to increase the safety of the weapon.
  • the invention is based on the idea to reduce the proportion of the inert material to a necessary minimum, in particular in the connection zone or at the connection point between drive and projectile. For this purpose, it is provided to carry out these moldings in a so-called layered construction, which can be realized in the felting process.
  • zones of the molded parts are mixed with energetic fiber material, preferably nitrocellulose. These zones are built only on the propellant charge powder facing molding side. However, all safety-relevant areas, such as contact points with the holder in the ammunition container, bearing surfaces in the tower bunker, connections of bullets, etc. remain completely inert.
  • the erosion of the surface in the propellant charge space is supported by the hot gases when shooting on the molded part inside.
  • the remaining amount of inert material is easier and more completely decomposed.
  • the size and mass of the residual parts is significantly reduced and can be easily flushed out of the charge space by the gas flow.
  • This form of sandwich is realized in the flooding process by various accumulations of pulps. As is known, such a system is subdivided into flooding chambers. Only in the chambers, where an inert coating is to take place, this inert recipe is added.
  • FIGURE shows a detail of a molded part 1 which has a felt 3 with an energetic material 4 and an inert material 5 in a predefined area 2 or a predefined partial zone.
  • the felting process it is provided to apply a felt 3 with energetic formulation to the previously defined area 2.
  • a felt 3 with energetic formulation to the previously defined area 2.
  • the entire suction surface is released and the final raw felt form is formed.
  • an inert recipe is selected for the second process step.
  • a two-head system with dip felter and felt zone control is used.
  • the felting is done by vacuum and timing.
  • the pulp concentration is adjusted to the fiber formulation.
  • a so-called cartridge cover (molded part 1) with different internal, preferably combustible, and outer material, preferably inert, can be constructed.
  • an inert material for example, a nitrocellulose-free mixture, for example, from pulp and groundwood, can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Paper (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

L'invention propose, pour améliorer le fonctionnement d'une arme et la sécurité d'une arme, de réaliser la pièce moulée (1), laquelle forme un emplacement de liaison en particulier entre un projectile et une douille pouvant de préférence brûler contenant un propulseur, de manière à ce que celle-ci présente un feutre (3) dans une zone prédéfinie avec une matière énergétique (4) et/ou une matière inerte (5).
EP07847024.2A 2007-01-04 2007-12-07 Pièce moulée ainsi que procédé de fabrication de la pièce moulée Active EP2106526B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007001655A DE102007001655A1 (de) 2007-01-04 2007-01-04 Formteil sowie Verfahren zum Herstellen des Formteils
PCT/EP2007/010676 WO2008080506A1 (fr) 2007-01-04 2007-12-07 Pièce moulée ainsi que procédé de fabrication de la pièce moulée

Publications (2)

Publication Number Publication Date
EP2106526A1 true EP2106526A1 (fr) 2009-10-07
EP2106526B1 EP2106526B1 (fr) 2014-02-19

Family

ID=39166373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07847024.2A Active EP2106526B1 (fr) 2007-01-04 2007-12-07 Pièce moulée ainsi que procédé de fabrication de la pièce moulée

Country Status (7)

Country Link
US (1) US8763534B2 (fr)
EP (1) EP2106526B1 (fr)
KR (1) KR101513740B1 (fr)
DE (1) DE102007001655A1 (fr)
ES (1) ES2461767T3 (fr)
WO (1) WO2008080506A1 (fr)
ZA (1) ZA200903778B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9230815B2 (en) * 2012-10-26 2016-01-05 Appled Materials, Inc. Methods for depositing fluorine/carbon-free conformal tungsten

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901153A (en) * 1972-10-04 1975-08-26 Us Air Force Wrapped laminated felted monolithic combustible cartridge case
US3823668A (en) * 1972-10-19 1974-07-16 Us Air Force Duplex combustible cartridge case
DE2323244C3 (de) * 1973-05-09 1979-04-19 Rheinmetall Gmbh, 4000 Duesseldorf Flügelstabilisiertes Unterkalibergeschoß
DE3008999A1 (de) 1974-06-14 1981-09-24 Wilhelm Dipl.-Chem. Dr. 5400 Koblenz Oversohl Verfahren zur herstellung von verbrennbaren munitionsformteilen und vorrichtung zum ausueben des verfahrens
DE3008996A1 (de) 1980-03-08 1981-09-24 Wilhelm Dipl.-Chem. Dr. 5400 Koblenz Oversohl Verfahren zur herstellung von verbrennbaren munitionsformteilen, wie kartuschhuelsen oder treibladungsbehaelter mit verstaerkenden gewebeeinlagen und vorrichtung zum ausueben des verfahrens
DE3619960A1 (de) 1986-06-13 1987-12-17 Rheinmetall Gmbh Treibladungshuelse
US5138949A (en) * 1990-09-20 1992-08-18 Olin Corporation Combustible ammunition cartridge case
US5323707A (en) 1991-08-05 1994-06-28 Hercules Incorporated Consumable low energy layered propellant casing
DE4318740C2 (de) 1993-06-05 1998-03-12 Rheinmetall Ind Ag Munitionseinheit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008080506A1 *

Also Published As

Publication number Publication date
ES2461767T3 (es) 2014-05-21
US8763534B2 (en) 2014-07-01
KR20090106491A (ko) 2009-10-09
US20100018429A1 (en) 2010-01-28
WO2008080506A1 (fr) 2008-07-10
EP2106526B1 (fr) 2014-02-19
DE102007001655A1 (de) 2008-07-10
KR101513740B1 (ko) 2015-04-20
ZA200903778B (en) 2010-06-30

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