EP2198233B1 - Weapon barrel in a lightweight construction - Google Patents

Weapon barrel in a lightweight construction Download PDF

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Publication number
EP2198233B1
EP2198233B1 EP08801811.4A EP08801811A EP2198233B1 EP 2198233 B1 EP2198233 B1 EP 2198233B1 EP 08801811 A EP08801811 A EP 08801811A EP 2198233 B1 EP2198233 B1 EP 2198233B1
Authority
EP
European Patent Office
Prior art keywords
weapon barrel
barrel
tube
ceramic
weapon
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.)
Not-in-force
Application number
EP08801811.4A
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German (de)
French (fr)
Other versions
EP2198233A1 (en
Inventor
Gerhard Bilger
Markus Tripp
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 EP2198233A1 publication Critical patent/EP2198233A1/en
Application granted granted Critical
Publication of EP2198233B1 publication Critical patent/EP2198233B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/02—Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/44—Insulation jackets; Protective jackets

Definitions

  • the weapon barrel is made of a ceramic composite or the metallic weapon barrel is wrapped, for example with glass fiber reinforced material.
  • the gun barrel has a lower pipe wall thickness. In combination with the fiber-reinforced material, this then leads to a weight reduction of the barrel.
  • the ceramic composite pipe is made of fiber sections made of fiber-reinforced material. The fiber sections are connected together at their ends and the sliver wound helically into a tube.
  • a weapon barrel in which a winding of individual fiber materials is provided around a metal tube serving as a bullet runway, also publishes the DE 199 59 047 A1 ,
  • a fiber reinforced rifled barrel barrel is out of the DE 691 16 787 T2 ( EP 0 479 746 B1 ) derivable.
  • a known barrel has a metallic barrel with a directly attached layer.
  • a multi-layer weapon tube also describes the US 5,856,631 A .
  • the same subject for Kleinkallber deals with the WO 99/37966 A2 .
  • the wraps or layers serve to exempt or dissipate the heat from the gun barrel. Especially with GFRP windings containing a resin in the fibers, too high temperatures will damage the windings.
  • the US 3,742,640 A relates to a gun barrel, in which means are included, which should realize a controlled radial distribution of heat in a gun barrel.
  • the weapon barrel has a layer with a low heat conduction.
  • the material of the layer may be, for example, a ceramic such as zirconia. This layer is applied over the entire length of the gun barrel. This also creates a high thermal resistance to the inner surface of the sleeve holding the gun barrel, so as to expose the heat throughout the tube.
  • the invention has as its object to provide a weapon barrel in lightweight construction, which no longer has the aforementioned disadvantage.
  • the JP 6-101993 A which forms a starting point for claim 1, describes a method for producing a gun barrel, when a carbon fiber reinforced plastic layer, for the thermosetting resin and carbon fiber are used on the outer peripheral surface of the thin part, and a protective layer, the glass fiber reinforced plastic, for the thermosetting Resin and glass fibers are used, or made of aramid fiber reinforced plastic, are used for the thermosetting resin and aramid fiber, formed one after the other by winding process, the softening according to the temperature increase of the plastic fiber reinforced plastic layer and the protective layer can be favorably prevented.
  • the invention is based on the idea to avoid a temperature transition from the barrel to a wrap.
  • a thermal insulation between the two is involved.
  • This thermal separating layer for example a ceramic, is applied to the steel tube by means of thermal application processes, preferably high-speed flame spraying. Due to the separation layer, the temperature is maintained in the tube and not dissipated as known about the winding. The composite material / layer / matrix is then applied to this ceramic separating layer in order to stabilize the material-reduced weapon barrel in the material-reduced areas.
  • the cartridge chamber in the area in which high pressures occur, is carried out as usual.
  • a wrapping with a thermal separating layer is incorporated in the area (s) in which lower pressures occur, ie preferably at the front of the weapon barrel.
  • the temperature dissipation takes place through the rear area (cartridge chamber), in which, as is known, always the higher temperatures occur.
  • the pipe thickness at the front or, in the front area of the gun barrel to be selected so that a derivative of the temperature purely constructive via the pipe to the rear, ie by / on the pipe itself.
  • the temperature can thus be dispensed with.
  • the new gun barrel is characterized by a composite of steel - ceramic composite material. It is weight-reduced and therefore ideal for fast shooting or aiming. It is intended to be used on weapons with a caliber of 30 mm and smaller caliber gun barrels.
  • a gun barrel 1 consisting of a metallic tube 2, for example made of steel, a ceramic layer applied thereto 3 and a fiber-reinforced material (4), for example, a GRP material, in the front region 5.
  • a cartridge chamber 7 made of steel.
  • the ceramic 3 is, for example, circonium oxide, which is applied to the steel by means of a suitable method. Due to its surface properties, the ceramic 3 offers a good adhesion behavior for the composite matrix 4 on the weapon barrel 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

Bei diversen Waffen / Waffentypen wird häufig eine Gewichtsreduzierung angestrebt. Die wir u. a. dadurch erreicht, dass das Waffenrohr aus einem Keramikverbund hergestellt wird oder das metallische Waffenrohr umwickelt wird, beispielsweise mit glasfaserverstärktem Material. Das Waffenrohr weist dabei eine geringere Rohrwandstärke auf. In Kombination mit dem faserverstärkten Material führt dies dann zu einer Gewichtsreduzierung des Waffenrohres.In various weapons / weapon types, a weight reduction is often sought. We u. a. achieved in that the weapon barrel is made of a ceramic composite or the metallic weapon barrel is wrapped, for example with glass fiber reinforced material. The gun barrel has a lower pipe wall thickness. In combination with the fiber-reinforced material, this then leads to a weight reduction of the barrel.

Aus der CH 682 843 A5 sind ein Keramikverbundrohr für Feuerwaffen und das Verfahren zu dessen Herstellung bekannt. Das Keramikverbundrohr wird aus Faserabschnitten hergestellt, die aus faserverstärktem Werkstoff bestehen. Die Faserabschnitte werden dabei an ihren Enden miteinander verbunden und das Faserband schraubenförmig zu einem Rohr gewickelt.From the CH 682 843 A5 For example, a ceramic composite tube for firearms and the method for its production are known. The ceramic composite pipe is made of fiber sections made of fiber-reinforced material. The fiber sections are connected together at their ends and the sliver wound helically into a tube.

Ein Aluminiumrohr mit Umwicklung beschreibt die US 5,285,592 A . Aus der US 5,915,937 A ist ein metallisches Waffenrohr umhüllt mit einem Verbundstoff bekannt. Die EP 0 862 721 B1 beansprucht einen Waffenlauf mit faserverstärktem Kunststoff und Metall sowie das entsprechende Verfahren zur Herstellung des Waffenlaufes.An aluminum tube with wrapping describes the US 5,285,592 A , From the US 5,915,937 A is a metallic barrel wrapped with a composite known. The EP 0 862 721 B1 claims a gun barrel with fiber-reinforced plastic and metal as well as the corresponding method of making the gun barrel.

Ein Waffenrohr, bei welchem um ein als Geschosslaufbahn dienendes Metallrohr eine Wicklung aus einzelnen Fasermaterialien vorgesehen ist, publiziert auch die DE 199 59 047 A1 . Das Fasermaterial oder die Einbettungsmasse, in welche das Fasermaterial eingebettet ist, beinhalten hierbei eine Komponente, welche die Wärmeausdehnung beeinflusst.A weapon barrel, in which a winding of individual fiber materials is provided around a metal tube serving as a bullet runway, also publishes the DE 199 59 047 A1 , The fiber material or the embedding mass, in which the fiber material is embedded, in this case contain a component which influences the thermal expansion.

Ein Innenverbundmaterial für ein Waffenrohr offenbart die DE 692 13 103 T2 ( EP 0 517 593 B1 ).An internal composite material for a gun barrel reveals the DE 692 13 103 T2 ( EP 0 517 593 B1 ).

Ein faserverstärkter gezogener Gewehrlauf ist aus der DE 691 16 787 T2 ( EP 0 479 746 B1 ) ableitbar.A fiber reinforced rifled barrel barrel is out of the DE 691 16 787 T2 ( EP 0 479 746 B1 ) derivable.

Auch das aus der US 5,214,234 A bekannte Waffenrohr besitzt ein metallisches Waffenrohr mit einer direkt darauf angebrachten Schicht.Also from the US 5,214,234 A known barrel has a metallic barrel with a directly attached layer.

Ein Mehrlagenwaffenrohr beschreibt zudem die US 5,856,631 A . Mit gleichem Gegenstand für Kleinkallber beschäftigt sich die WO 99/37966 A2 .A multi-layer weapon tube also describes the US 5,856,631 A , The same subject for Kleinkallber deals with the WO 99/37966 A2 ,

Mit einem durch geeignete Materialpaarung gewichtsreduzierten Waffenrohr mit besseren Warmeabstrahleigenschaften und gleich bleibender Präzislon beschäftigt sich die DE 101 12 254 C1 .With a by suitable material pairing weight-reduced gun barrel with better heat dissipation characteristics and consistent precision deals with DE 101 12 254 C1 ,

Die Umwicklungen bzw. Schichten dienen dabei zur Ausnahme bzw. zum Abführen der Wärme aus dem Waffenrohr. Insbesondere bei GFK -Wicklungen, die ein Harz in den Fasern beinhalten, führen zu hohe Temperaturen zur Beschädigung der Wicklungen.The wraps or layers serve to exempt or dissipate the heat from the gun barrel. Especially with GFRP windings containing a resin in the fibers, too high temperatures will damage the windings.

Die US 3,742,640 A betrifft ein Waffenrohr, bei welchem Mittel eingebunden sind, die eine kontrollierte radiale Verteilung der Wärme In einem Waffenrohr realisieren sollen. In einer ersten Ausführung weist das Waffenrohr eine Schicht mit einer niedrigen Wärmeleitung auf. Das Material der Schicht kann beilspielsweise eine Keramik, wie Zirkoniumoxid sein. Diese Schicht ist über die gesamte Länge des Waffenrohres aufgebracht. Diese erzeugt ebenfalls , einen hohen Wärmewiderstand gegenüber der inneren Oberfläche der das Waffenrohr haltenden Buchse, um so die Wärme über das gesamte Rohr zu vertellen.The US 3,742,640 A relates to a gun barrel, in which means are included, which should realize a controlled radial distribution of heat in a gun barrel. In a first embodiment, the weapon barrel has a layer with a low heat conduction. The material of the layer may be, for example, a ceramic such as zirconia. This layer is applied over the entire length of the gun barrel. This also creates a high thermal resistance to the inner surface of the sleeve holding the gun barrel, so as to expose the heat throughout the tube.

Die Erfindung stellt sich die Aufgabe, ein Waffenrohr in Leichtbauweise anzugeben, welches den vorgenannten Nachteil nicht mehr aufweist.The invention has as its object to provide a weapon barrel in lightweight construction, which no longer has the aforementioned disadvantage.

Die JP 6-101993 A , welche einen Ausgangspunkt für den Anspruch 1 bildet, beschreibt ein Verfahren zur Herstellung eines Geschützrohres, Werden an der Außenumfangsfläche des dünnen Teils eine kohlenstofffaserverstärkte Plästikschicht, für die wärmehärtendes Harz und Kohlenstofffaser verwendet sind, und eine Schutzschicht, die aus glasfaserverstärktem Plastik, für das wärmehärtendes Harz und Glasfasern verwendet sind, oder aus aramidfaserverstärktem Plastik, für das wärmehärtendes Harz und Aramidfaser verwendet sind, eins nach dem anderen durch Wickelverfahren gebildet, kann die Erweichung entsprechend der Temperaturerhöhung der kunststofffaserverstärkten Plastikschicht und der Schutzschicht günstig verhindert werden.The JP 6-101993 A , which forms a starting point for claim 1, describes a method for producing a gun barrel, when a carbon fiber reinforced plastic layer, for the thermosetting resin and carbon fiber are used on the outer peripheral surface of the thin part, and a protective layer, the glass fiber reinforced plastic, for the thermosetting Resin and glass fibers are used, or made of aramid fiber reinforced plastic, are used for the thermosetting resin and aramid fiber, formed one after the other by winding process, the softening according to the temperature increase of the plastic fiber reinforced plastic layer and the protective layer can be favorably prevented.

Der Erfindung liegt jedoch die Idee zugrunde, einen Temperaturübergang vom Waffenrohr auf eine Umwicklung zu vermeiden. Dazu wird eine Thermoisolation zwischen beiden eingebunden. Diese Thermotrennschicht, beispielsweise eine Keramik, wird auf das Stahlrohr mittels thermischen Auftragsverfahren, vorzugsweise Hochgeschwindigkeisflammspritzen aufgetragen. Durch die Trennschicht wird die Temperatur im Rohr gehalten und nicht wie bekannt über die Wicklung abgeführt. Auf diese Keramiktrennschicht wird dann der Verbundwerkstoff / Schicht / Matrix aufgebracht, um das materialreduzierte Waffenrohr in den materialreduzierten Bereichen zu stabilisieren.However, the invention is based on the idea to avoid a temperature transition from the barrel to a wrap. For this purpose, a thermal insulation between the two is involved. This thermal separating layer, for example a ceramic, is applied to the steel tube by means of thermal application processes, preferably high-speed flame spraying. Due to the separation layer, the temperature is maintained in the tube and not dissipated as known about the winding. The composite material / layer / matrix is then applied to this ceramic separating layer in order to stabilize the material-reduced weapon barrel in the material-reduced areas.

Das Patronenlager, im Bereich, in dem hohe Drücke auftreten, wird dabei wie gehabt ausgeführt. Eine Umwicklung mit Thermotrennschicht wird In dem / den Bereich(en) eingebunden, in dem geringere Drücke auftreten, also vorzugsweise vorne am Waffenrohr. Die Temperaturabführung erfolgt durch den hinteren Bereich (Patronenlager), in dem bekanntlich immer die höheren Temperaturen auftreten.The cartridge chamber, in the area in which high pressures occur, is carried out as usual. A wrapping with a thermal separating layer is incorporated in the area (s) in which lower pressures occur, ie preferably at the front of the weapon barrel. The temperature dissipation takes place through the rear area (cartridge chamber), in which, as is known, always the higher temperatures occur.

Um das Abführen zu gewährleisten, ist die Rohrdicke vorne bzw, im vorderen Bereich des Waffenrohres so zu wählen, dass eine Ableitung der Temperatur rein konstruktiv über das Rohr nach hinten erfolgt, d. h. durch /über das Rohr selbst. Auf zusätzliche Möglichkeiten zum Abgleiten der Temperatur kann somit verzichtet werden.In order to ensure the discharge, the pipe thickness at the front or, in the front area of the gun barrel to be selected so that a derivative of the temperature purely constructive via the pipe to the rear, ie by / on the pipe itself. On additional ways to slip the temperature can thus be dispensed with.

Das neue Waffenrohr zeichnet sich durch einen Verbund aus Stahl - Keramik - Verbundwerkstoff aus. Es ist gewichtsreduziert und damit ideal zum schnellen Schießen bzw. Zielen. Vorgesehen ist der Einsatz bei Waffen ab einem Kaliber von 30 mm, wobei auch kleinere Kaliberwaffenrohre so aufgebaut werden können.The new gun barrel is characterized by a composite of steel - ceramic composite material. It is weight-reduced and therefore ideal for fast shooting or aiming. It is intended to be used on weapons with a caliber of 30 mm and smaller caliber gun barrels.

Anhand eines Ausführungsbeispiels mit Zeichnung soll die Erfindung näher erläutert werden.Reference to an embodiment with drawing, the invention will be explained in more detail.

Es zeigt die einzige Figur ein Waffenrohr 1, bestehend aus einem metallischen Rohr 2, beispielsweise aus Stahl, einer darauf aufgebrachten Keramikschicht 3 sowie einem faserverstärkten Material (4), beispielsweise einer GFK -Material, im vorderen Bereich 5. Im hinteren Bereich 6 befindet sich ein Patronenlager 7 aus Stahl.It shows the only figure a gun barrel 1, consisting of a metallic tube 2, for example made of steel, a ceramic layer applied thereto 3 and a fiber-reinforced material (4), for example, a GRP material, in the front region 5. In the rear area 6 is located a cartridge chamber 7 made of steel.

Bei der Keramik 3 handelt es sich beispielsweise um Circonoxid, das mittels geeignetem Verfahren auf den Stahl aufgetragen wird. Die Keramik 3 bietet aufgrund ihrer Oberflächenbeschaffenheit ein gutes Haftungsverhalten für die Verbundwerkstoff- Matrix 4 am Waffenrohr 1.The ceramic 3 is, for example, circonium oxide, which is applied to the steel by means of a suitable method. Due to its surface properties, the ceramic 3 offers a good adhesion behavior for the composite matrix 4 on the weapon barrel 1.

Claims (5)

  1. Weapon barrel (1) of a lightweight construction, consisting of a metal tube (2) and a wound surround of fibre-reinforced material (4) in the front region (5) of the weapon barrel (2) and also a firing chamber (7), located in the rear region (6), characterized in that a thermally insulating layer (3) is incorporated in the front region (5) of the weapon barrel (1) between the tube (2) and the wound surround of fibre-reinforced material (4), and the rear region (6) on the weapon barrel (1), or at least the firing chamber (7), is without the thermally insulating layer (3).
  2. Weapon barrel according to Claim 1, characterized in that the tube (2) is a steel tube and the wound surround (4) is a GRP material.
  3. Weapon barrel according to Claim 1 or 2, characterized in that the thermally insulating layer (3) is a ceramic.
  4. Weapon barrel according to Claim 3, characterized in that the ceramic (3) is a zirconium oxide.
  5. Weapon barrel according to Claim 3 or 4, characterized in that the ceramic (3) is applied to the steel tube (2) by means of high-velocity oxygen fuel spraying.
EP08801811.4A 2007-09-24 2008-09-03 Weapon barrel in a lightweight construction Not-in-force EP2198233B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710045723 DE102007045723A1 (en) 2007-09-24 2007-09-24 Gun barrel in lightweight construction
PCT/EP2008/007178 WO2009039940A1 (en) 2007-09-24 2008-09-03 Weapon barrel in a lightweight construction

Publications (2)

Publication Number Publication Date
EP2198233A1 EP2198233A1 (en) 2010-06-23
EP2198233B1 true EP2198233B1 (en) 2015-08-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08801811.4A Not-in-force EP2198233B1 (en) 2007-09-24 2008-09-03 Weapon barrel in a lightweight construction

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EP (1) EP2198233B1 (en)
DE (1) DE102007045723A1 (en)
WO (1) WO2009039940A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20111578A1 (en) * 2011-09-02 2013-03-03 Beretta Armi Spa THERMAL BARRIER FOR FIREARMS AND FIREARMS PROVIDED WITH SUCH THERMAL BARRIERS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06101993A (en) * 1992-09-18 1994-04-12 Japan Steel Works Ltd:The Gun barrel and manufacture thereof

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US3742640A (en) 1971-05-14 1973-07-03 Us Army Composite firearm barrel
US4841836A (en) * 1987-11-02 1989-06-27 Bundy Mark L Thermal shroud for a gun tube
CH682843A5 (en) 1990-03-20 1993-11-30 Oerlikon Buehrle Ag Ceramic fibre-reinforced barrel for firearms - has screw-like coiled fabric strips on internal surface of barrel with their face ends inclined downwards along the shooting direction
SE467301B (en) 1990-10-01 1992-06-29 Statoil Europart Ab SATISFIED MANUFACTURING ELECTRIC WORKS, AND A SATISFIED MANUAL
FR2677442B1 (en) 1991-06-06 1993-10-15 Propulsion Ste Europeenne CANON TUBE SHIRT OF COMPOSITE MATERIAL, MANUFACTURING METHOD THEREOF, AND CANON TUBE PROVIDED WITH SUCH A SHIRT.
US5285592A (en) 1991-10-31 1994-02-15 Atlantic Research Corporation Motor case with composite overwrap and method
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US5856631A (en) 1995-11-20 1999-01-05 Nitinol Technologies, Inc. Gun barrel
US5692334A (en) 1995-12-18 1997-12-02 Roland J. Christensen Family Limited Partnership Primarily independent composite/metallic gun barrel
ATE274179T1 (en) 1995-12-18 2004-09-15 Roland Christensen GUN BARREL MADE OF FIBER-REINFORCED PLASTIC AND METAL
US6189431B1 (en) 1998-01-26 2001-02-20 Remington Arms Company, Inc. Small caliber gun barrel
DE10112254C1 (en) 2001-03-14 2002-08-22 Josef Schmeiler A weapon barrel that is weight-reduced thanks to a suitable combination of materials and has better heat radiation properties and constant precision
US20070256345A1 (en) * 2006-05-04 2007-11-08 Hall David R A Rigid Composite Structure with a Superhard Interior Surface

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH06101993A (en) * 1992-09-18 1994-04-12 Japan Steel Works Ltd:The Gun barrel and manufacture thereof

Also Published As

Publication number Publication date
EP2198233A1 (en) 2010-06-23
WO2009039940A1 (en) 2009-04-02
DE102007045723A1 (en) 2009-04-02

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