EP2253925A2 - Protective layer for a munitions or bullet casing - Google Patents

Protective layer for a munitions or bullet casing Download PDF

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Publication number
EP2253925A2
EP2253925A2 EP20100003510 EP10003510A EP2253925A2 EP 2253925 A2 EP2253925 A2 EP 2253925A2 EP 20100003510 EP20100003510 EP 20100003510 EP 10003510 A EP10003510 A EP 10003510A EP 2253925 A2 EP2253925 A2 EP 2253925A2
Authority
EP
European Patent Office
Prior art keywords
protective layer
cartridge
sleeve
munitions
layer
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.)
Withdrawn
Application number
EP20100003510
Other languages
German (de)
French (fr)
Inventor
Markus Tripp
Gerhard Bilger
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 EP2253925A2 publication Critical patent/EP2253925A2/en
Withdrawn legal-status Critical Current

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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
    • F42B5/26—Cartridge cases
    • F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal
    • F42B5/295—Cartridge cases of metal, i.e. the cartridge-case tube is of metal coated
    • 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
    • F42B5/26—Cartridge cases
    • F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal
    • F42B5/295—Cartridge cases of metal, i.e. the cartridge-case tube is of metal coated
    • F42B5/297—Cartridge cases of metal, i.e. the cartridge-case tube is of metal coated with plastics

Definitions

  • the invention addresses the problem of ejecting cartridges / sleeves.
  • the invention has the object to provide a way by which the aforementioned problem can be solved.
  • the invention is based on the idea of providing the cartridge shell, at least from the outside, with a protective layer, preferably already during production. It can be used on protective layers of nano-technology.
  • the inside of the sleeve can be equipped with it.
  • a protective layer on and in the sleeve or the outer and inner surface of the sleeve also has the advantage that now a constant frictional resistance during ejection / extraction can be maintained from the chamber and in all temperature ranges of the sleeves, which in the case of bonded coatings, which must have a minimum thickness and are technically different, was not possible.
  • FIGURE shows a cartridge case 1 with an outer and inner protective layer 2, 3, which is at least partially applied to the inner or outer surface, but preferably over the entire surface of the cartridge shell 1, as well as in the area of Ausziehrille 4.
  • Bei the protective layer 2, 3 is a hydrophobic and oleophobic layer which is applied in ⁇ m range (ultra-transparent layer) or the like.
  • the aforementioned cartridge case 1 is used as known for receiving a bullet not shown and a propellant charge.
  • the application of the protective layer 2, 3 can be done by spraying, painting, Pulverbesivier, dipping, etc.
  • the layer should harden 2, 3, preferably at a temperature between 100 ° C-200 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Abstract

The casing (1) has hydrophobic and oleophobic outer and inner protection layers (2, 3) that are partially applied over an entire surface of the casing though spraying, lacquering, powder coating and dip coating, where the layers are made from polysiloxane. The protection layers are hardened at temperature between 100 to 200 degrees Celsius.

Description

Die Erfindung beschäftigt sich mit dem Problem des Ausziehens bzw. Auswerfens von Patronen / Hülsen.The invention addresses the problem of ejecting cartridges / sleeves.

Derartige Probleme treten insbesondere bei Hülsen bzw. Patronen auf, die durch Umwelteinflüsse einer Korrosionsbeanspruchung unterliegen. Die Korrosion bezieht insbesondere auf Schäden durch Feuchtigkeit sowie die Oberfläche der Hülse angreifende Komponente.Such problems occur in particular in sleeves or cartridges, which are subject by environmental influences of corrosion stress. The corrosion relates in particular to damage by moisture as well as the surface of the sleeve attacking component.

Derzeit versucht man diesem Problem durch Auftragen von Gleitlacken oder durch Oberflächenschutz mittels Phosphatieren. Alternativ werden korrosionsresistente Materialien (Werkstoffe wie Messing verwendet.At present, this problem is being tried by applying antifriction coatings or by surface protection by means of phosphating. Alternatively, corrosion-resistant materials (materials such as brass are used.

Ausgehend von dieser Thematik liegt der Erfindung die Aufgabe zugrunde, eine Möglichkeit aufzuzeigen, mit der das vorgenannte Problem gelöst werden kann.Based on this issue, the invention has the object to provide a way by which the aforementioned problem can be solved.

Gelöst wird die Aufgabe durch die Merkmale das Patentanspruchs 1. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen verankert.The object is achieved by the features of claim 1. Advantageous embodiments are anchored in the subclaims.

Der Erfindung liegt die Idee zugrunde, die Patronenhülse vorzugsweise bereits bei der Herstellung zumindest von außen mit einer Schutzschicht zu versehen. Dabei kann auf Schutzschichten der Nano-Technologie zurückgegriffen werden. In einer bevorzugten Ausführung kann auch die Innenseite der Hülse damit ausgestattet werden.The invention is based on the idea of providing the cartridge shell, at least from the outside, with a protective layer, preferably already during production. It can be used on protective layers of nano-technology. In a preferred embodiment, the inside of the sleeve can be equipped with it.

Eine derartige Schutzschicht ist zwar bereits aus der DE 10 2006 025 243 A1 bekannt. Hierbei wird der Korrosionsschutz auf Waffenteile als auch Teile einer Lafette, eines Turm etc. aufgebracht. Dadurch soll erreicht werden, dass trotz diverser Umwelteinflüsse wie Seewasser die Waffenteile nicht korrodieren.Although such a protective layer is already out of the DE 10 2006 025 243 A1 known. Here, the corrosion protection is applied to weapons parts as well as parts of a carriage, a tower, etc. This should ensure that despite various environmental influences such as seawater, the weapon parts do not corrode.

Die Einbindung einer Schutzschicht auf als auch in der Hülse bzw. der äußeren sowie inneren Oberfläche der Hülse hat zudem den Vorteil, dass nunmehr ein gleich bleibender Reibungswiderstand beim Auswerfen / Ausziehen aus dem Patronenlager als auch in allen Temperaturbereichen an den Hülsen beibehalten werden kann, was bei Gleitlacken, die eine Mindestdicke aufweisen müssen und fertigungstechnisch unterschiedlich ausgefallen sind, nicht möglich war.The inclusion of a protective layer on and in the sleeve or the outer and inner surface of the sleeve also has the advantage that now a constant frictional resistance during ejection / extraction can be maintained from the chamber and in all temperature ranges of the sleeves, which in the case of bonded coatings, which must have a minimum thickness and are technically different, was not possible.

Anhand eines schematisch dargestellten Ausführungsbeispiels mit Zeichnung soll die Erfindung kurz beschrieben werden. Die einzige Figur zeigt eine Patronenhülse 1 mit einer äußeren sowie inneren Schutzschicht 2, 3, die zumindest teilweise auf der inneren- bzw. äußeren Oberfläche, vorzugsweise jedoch über die gesamte Oberfläche der Patronenhülle 1 aufgetragen ist, so auch im Bereich der Ausziehrille 4. Bei der Schutzschicht 2, 3 handelt es sich um eine hydrophobe und oleophobe Schicht, die in µm Bereich (ultratransparente Schicht) aufgetragen oder dergleichen wird. Die vorgenannte Patronenhülse 1 dient wie bekannt zur Aufnahme eines nicht näher dargestellten Geschosses sowie einer Treibladung.Reference to a schematically illustrated embodiment with drawing, the invention will be described briefly. The single FIGURE shows a cartridge case 1 with an outer and inner protective layer 2, 3, which is at least partially applied to the inner or outer surface, but preferably over the entire surface of the cartridge shell 1, as well as in the area of Ausziehrille 4. Bei the protective layer 2, 3 is a hydrophobic and oleophobic layer which is applied in μ m range (ultra-transparent layer) or the like. The aforementioned cartridge case 1 is used as known for receiving a bullet not shown and a propellant charge.

Das Auftragen der Schutzschicht 2, 3 kann durch Aufsprühen, Lackieren, Pulverbesichten, Tauchen etc. erfolgen. Als Nano-Schutzschicht 2, 3 bietet sich beispielsweise Polysiloxan an. Nach dem Auftragen sollte die Schicht 2, 3 aushärten, vorzugsweise bei einer Temperatur zwischen 100°C-200°C.The application of the protective layer 2, 3 can be done by spraying, painting, Pulverbesichten, dipping, etc. As a nano-protective layer 2, 3, for example, offers polysiloxane. After application, the layer should harden 2, 3, preferably at a temperature between 100 ° C-200 ° C.

Claims (7)

Patronenhülse (1), gekennzeichnet durch eine hydrophobe und oleophobe Außenschicht (2).Cartridge sleeve (1), characterized by a hydrophobic and oleophobic outer layer (2). Patronenhülse (1), gekennzeichnet durch eine hydrophobe und oleophobe Innenschicht (3).Cartridge sleeve (1), characterized by a hydrophobic and oleophobic inner layer (3). Patronenhülse (1), gekennzeichnet durch eine hydrophobe und oleophobe Außen- und Innenschicht (2, 3).Cartridge sleeve (1), characterized by a hydrophobic and oleophobic outer and inner layer (2, 3). Patronenhülse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Schutzschicht (2, 3) in µm Bereich (ultratransparente Schicht) aufgetragen ist.Cartridge according to one of claims 1 to 3, characterized in that the protective layer (2, 3) in μ m range (ultra-transparent layer) is applied. Patronenhülse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass als Nano-Schutzschicht (2, 3) Polysiloxan verwendet wird.Cartridge according to one of claims 1 to 4, characterized in that as the nano-protective layer (2, 3) polysiloxane is used. Patronenhülse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Schutzschicht (2, 3) kann durch Aufsprühen, Lackieren, Pulverbesichten, Tauchen etc. auftragbar ist.Cartridge according to one of claims 1 to 5, characterized in that the protective layer (2, 3) can be applied by spraying, painting, Pulverbesichten, dipping, etc. Verwendung der Patronenhülse nach einem der Ansprüche 1 bis 6 in einer Munition oder dergleichen, eine Hülse umfassende Einrichtung.Use of the cartridge case according to one of claims 1 to 6 in an ammunition or the like, a sleeve comprehensive device.
EP20100003510 2009-05-20 2010-03-31 Protective layer for a munitions or bullet casing Withdrawn EP2253925A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009022146 2009-05-20

Publications (1)

Publication Number Publication Date
EP2253925A2 true EP2253925A2 (en) 2010-11-24

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Family Applications (1)

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EP20100003510 Withdrawn EP2253925A2 (en) 2009-05-20 2010-03-31 Protective layer for a munitions or bullet casing

Country Status (1)

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EP (1) EP2253925A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160131461A1 (en) * 2014-11-12 2016-05-12 Alcoa Inc. Coated substrate systems and methods

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025243A1 (en) 2006-05-29 2007-12-06 Rheinmetall Waffe Munition Gmbh Protective layer for parts, in particular a weapon, a gun carriage, a tower or the like, in particular as a corrosion protection of these parts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025243A1 (en) 2006-05-29 2007-12-06 Rheinmetall Waffe Munition Gmbh Protective layer for parts, in particular a weapon, a gun carriage, a tower or the like, in particular as a corrosion protection of these parts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160131461A1 (en) * 2014-11-12 2016-05-12 Alcoa Inc. Coated substrate systems and methods
US9939241B2 (en) * 2014-11-12 2018-04-10 Arconic Inc. Coated substrate systems and methods

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