EP0260419B1 - Verbrennbarer Treibladungsbehälter mit verbesserter Temperaturbeständigkeit - Google Patents

Verbrennbarer Treibladungsbehälter mit verbesserter Temperaturbeständigkeit Download PDF

Info

Publication number
EP0260419B1
EP0260419B1 EP87111101A EP87111101A EP0260419B1 EP 0260419 B1 EP0260419 B1 EP 0260419B1 EP 87111101 A EP87111101 A EP 87111101A EP 87111101 A EP87111101 A EP 87111101A EP 0260419 B1 EP0260419 B1 EP 0260419B1
Authority
EP
European Patent Office
Prior art keywords
propellant container
temperature resistance
container according
cartridge case
improved temperature
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
EP87111101A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0260419A3 (en
EP0260419A2 (de
Inventor
Johannes Eich
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.)
Dynamit Nobel Defence GmbH
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of EP0260419A2 publication Critical patent/EP0260419A2/de
Publication of EP0260419A3 publication Critical patent/EP0260419A3/de
Application granted granted Critical
Publication of EP0260419B1 publication Critical patent/EP0260419B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F42B5/192—Cartridge cases characterised by the material of the casing wall
    • F42B5/196—Coatings
    • 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
    • C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones

Definitions

  • the present invention is concerned with combustible propellant containers, such as sleeves or cartridges, whose temperature resistance is improved. At the same time, mechanical properties of these containers are also improved.
  • the object was therefore to develop combustible containers for propellant charge powders which are as temperature-resistant as possible and at the same time have mechanical property values which are at least equivalent to those of known containers. Furthermore, the container should burn off without residues and not negatively affect the energy balance of the entire combustion system.
  • combustible propellant charge containers which are provided with a surface coating and are characterized by a coating with a nitramine known as an explosive and which is embedded in a binder.
  • nitramines to be used are those which are known per se as explosives, have a detonation speed of more than 7,400 m / s and, when burned, deliver a high normal gas volume, preferably more than 650 l / kg (measured by the CIT method). Furthermore, they should have deflagration points above 200 ° C, preferably above 230 ° C.
  • Nitramines that meet these conditions are e.g. Cyclotrimethylene trinitramine (hexogen) or the cyclotetramethylene tetramine (octogenes).
  • Suitable liquid binders are those liquid resins which have a desensitizing effect on the nitramines, so that they do not detonate, but rather uniformly burn down. The resins are also said to cure when standing in the air. Resins with such properties are known per se to the person skilled in the art. Resins based on polyvinyl alcohol, polyvinyl acetal, polybutadiene or polyacrylates may be mentioned as examples.
  • the proportion of binders in the coating can vary between 5 and 20% by weight, depending on the type of resin used. It is preferably between 10 and 15% by weight, especially if a polyvinyl acetal resin is used as the binder.
  • the thickness of the coatings depends on the respective application and the components used; it can vary between 0.1 and 1.0 mm, preferably it is between 0.2 and 0.5 mm.
  • the application is carried out in a manner known per se, optionally dissolved in a suitable solvent; e.g. by spraying, dipping, rolling or brushing.
  • the application can be carried out both on the sleeve which has not yet been processed as well as on a sleeve which has already been provided with a load and projectile.
  • the paint to be applied also contains a plasticizer known per se.
  • the coating according to the invention is always on the outer surfaces of the containers. It can also be attached to the inner wall. In any case, it burns together with the container.
  • the containers which are coated according to the invention are known per se to the person skilled in the art. These are both flammable sleeves or cartridges as well as containers that can be used instead of bag loads.
  • the containers preferably have a central tube for receiving an ignition boost and are cylindrical or slightly conical.
  • the coating according to the invention improves the cook-off behavior of the sleeves; it also protects the sleeves from moisture and also improves the mechanical properties of the sleeves, e.g. the tensile strength, impact and impact resistance.
  • a cartridge made with this sleeve moves without residue when fired in the weapon.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Paints Or Removers (AREA)
EP87111101A 1986-09-03 1987-07-31 Verbrennbarer Treibladungsbehälter mit verbesserter Temperaturbeständigkeit Expired - Lifetime EP0260419B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3630019 1986-09-03
DE19863630019 DE3630019A1 (de) 1986-09-03 1986-09-03 Verbrennbarer treibladungsbehaelter mit verbesserter temperaturbestaendigkeit

Publications (3)

Publication Number Publication Date
EP0260419A2 EP0260419A2 (de) 1988-03-23
EP0260419A3 EP0260419A3 (en) 1989-10-04
EP0260419B1 true EP0260419B1 (de) 1993-01-27

Family

ID=6308844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111101A Expired - Lifetime EP0260419B1 (de) 1986-09-03 1987-07-31 Verbrennbarer Treibladungsbehälter mit verbesserter Temperaturbeständigkeit

Country Status (2)

Country Link
EP (1) EP0260419B1 (enrdf_load_stackoverflow)
DE (2) DE3630019A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825581C1 (en) * 1988-07-28 1993-05-13 Dynamit Nobel Ag, 5210 Troisdorf, De Combustible or consumable cartridge cases for ammunition - made of wrapping(s) of fibres of polyester, polyamide, polyolefin. polyacrylate, polyurethane, metal glass, coal etc.
DE3830902C1 (enrdf_load_stackoverflow) * 1988-09-10 1992-04-09 Diehl Gmbh & Co, 8500 Nuernberg, De
US5069133A (en) * 1990-08-31 1991-12-03 Olin Corporation Elastomer-containing casings for propellants
DE4223143A1 (de) * 1991-08-16 1993-02-18 Eidgenoess Munitionsfab Thun Verfahen zur verbesserung der mechanischen beanspruchbarkeit von hochbeschleunigten und/oder schockwellen unterworfenen munitionskoerpern, insbesondere solche mit hohlladungen sowie dessen anwendung
FR2928917B1 (fr) * 2008-03-21 2010-09-24 Eurenco France Revetement de finition inflammable pour chargement pyrotechnique; composition liquide precurseur dudit revetement
US12337511B2 (en) 2021-09-27 2025-06-24 General Dynamics Ordnance And Tactical Systems—Canada Inc Combustible containers manufactured using reactive injection molding of azido polymers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927616A (en) * 1974-04-23 1975-12-23 Us Army Combustible cartridge case
DE2458877C2 (de) * 1974-12-12 1983-02-10 Deutsch-Französisches Forschungsinstitut Saint-Louis, Saint-Louis Verbrennbare Schutzhülle gegen thermische Einflüsse für Geschoßtreibladungen für automatische Waffen
DE2710451C2 (de) * 1977-03-10 1990-11-15 Rheinmetall GmbH, 4000 Düsseldorf Oberflächenschutzbeschichtung für Munition mit verbrennbarer Hülse bzw. hülsenlose Munition
DE2843477C2 (de) * 1978-10-05 1987-04-09 Dynamit Nobel Ag, 5210 Troisdorf Hülsenlose Treibmittelkörper
FR2444251A1 (fr) * 1978-12-15 1980-07-11 Poudres & Explosifs Ste Nale Objets combustibles, et notamment douilles combustibles, resistant a la chaleur
FR2590013B1 (fr) * 1985-11-12 1989-07-13 France Etat Armement Vernis protecteur contre la thermo-initiation d'une munition sans douille ou a douille combustible

Also Published As

Publication number Publication date
DE3630019C2 (enrdf_load_stackoverflow) 1989-10-12
DE3630019A1 (de) 1988-03-17
EP0260419A3 (en) 1989-10-04
DE3783839D1 (de) 1993-03-11
EP0260419A2 (de) 1988-03-23

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