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EP1048921A3 - Method for coating the inner surface of a gun barrel - Google Patents

Method for coating the inner surface of a gun barrel Download PDF

Info

Publication number
EP1048921A3
EP1048921A3 EP00104757A EP00104757A EP1048921A3 EP 1048921 A3 EP1048921 A3 EP 1048921A3 EP 00104757 A EP00104757 A EP 00104757A EP 00104757 A EP00104757 A EP 00104757A EP 1048921 A3 EP1048921 A3 EP 1048921A3
Authority
EP
European Patent Office
Prior art keywords
gun barrel
coating
barrel
layer material
plasma
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.)
Ceased
Application number
EP00104757A
Other languages
German (de)
French (fr)
Other versions
EP1048921A2 (en
Inventor
Christian Warnecke
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 W&M GmbH
Original Assignee
Rheinmetall W&M 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 W&M GmbH filed Critical Rheinmetall W&M GmbH
Publication of EP1048921A2 publication Critical patent/EP1048921A2/en
Publication of EP1048921A3 publication Critical patent/EP1048921A3/en
Ceased legal-status Critical Current

Links

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
    • F41A21/22—Barrels which have undergone surface treatment, e.g. phosphating
    • 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
    • F41A21/04—Barrel liners

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Nozzles (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Innenbeschichtung eines Waffenrohres, auf dessen innere Oberfläche (9) mindestens in einem Teilbereich (2) ein Schichtwerkstoff zur Vermeidung von Erosionen aufgebracht wird.The invention relates to a method for internal coating a weapon barrel, on the inner surface (9) of which at least in a partial area (2) a layer material to avoid of erosion is applied.

Um auf einfache Weise hochschmelzende Schichtwerkstoffe auf die innere Oberfläche (9) des Waffenrohres (1) aufzubringen, schlägt die Erfindung vor, die Innenbeschichtung des jeweiligen Waffenrohres (1) durch Plasma-Auftragsschweißen vorzunehmen, wobei in dem Waffenrohr (1) ein Brenner (4) zum Erzeugen einer Plasmaflamme (8) angeordnet ist, welche sich bis zur inneren Oberfläche (9) des Waffenrohres (1) erstreckt und in welches der Schichtwerkstoff in pulver-, draht- oder bandförmiger Form eingebracht wird. In dem Plasma wird der Schichtwerkstoff aufgeschmolzen und das schmelzförmige Material an der inneren Oberfläche (9) des Waffenrohres (1) dann abgeschieden.

Figure 00000001
In order to apply high-melting layer materials to the inner surface (9) of the gun barrel (1) in a simple manner, the invention proposes to carry out the inner coating of the respective gun barrel (1) by means of plasma deposition welding, with a torch (4) in the gun barrel (1) ) is arranged to generate a plasma flame (8) which extends to the inner surface (9) of the weapon barrel (1) and into which the layer material is introduced in powder, wire or tape form. The layer material is melted in the plasma and the melt-like material is then deposited on the inner surface (9) of the weapon barrel (1).
Figure 00000001
EP00104757A 1999-04-30 2000-03-04 Method for coating the inner surface of a gun barrel Ceased EP1048921A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19919687A DE19919687A1 (en) 1999-04-30 1999-04-30 Process for coating the inside of a gun barrel
DE19919687 1999-04-30

Publications (2)

Publication Number Publication Date
EP1048921A2 EP1048921A2 (en) 2000-11-02
EP1048921A3 true EP1048921A3 (en) 2001-08-22

Family

ID=7906407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104757A Ceased EP1048921A3 (en) 1999-04-30 2000-03-04 Method for coating the inner surface of a gun barrel

Country Status (3)

Country Link
US (1) US6511710B2 (en)
EP (1) EP1048921A3 (en)
DE (1) DE19919687A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10041114A1 (en) 2000-08-22 2002-03-07 Rheinmetall W & M Gmbh Process for removing coating and / or erosion damage
FR2833195B1 (en) * 2001-12-07 2004-01-30 Giat Ind Sa PROCESS FOR FITTING A PROTECTIVE COATING ON THE INTERNAL WALL OF A TUBE, TUBE AND IN PARTICULAR WEAPON TUBE PRODUCED BY THIS PROCESS
EP1403609A1 (en) * 2002-09-18 2004-03-31 Rheinmetall W & M GmbH Method for applying an inner coating to a gun barrel
US20060210721A1 (en) * 2003-03-07 2006-09-21 Metal Spray International L.C. Wear resistant screen
DE10328450A1 (en) 2003-06-25 2005-01-20 Rheinmetall W & M Gmbh Method for eliminating coating and / or erosion damage
AT500509B8 (en) * 2004-03-08 2007-02-15 Moerth Marlene METHOD FOR PVD INTERNAL COATING OF METALLIC WORKPIECES WITH DEEP HOLES AND RUNNING OF FIREARMS
US7650710B1 (en) 2004-06-03 2010-01-26 The United States Of America As Represented By The Secretary Of The Army Article with enhanced resistance to thermochemical erosion, and method for its manufacture
US7191558B1 (en) * 2004-11-10 2007-03-20 The United States Of America As Represented By The Secretary Of The Army Dynamic process for enhancing the wear resistance of ferrous articles
WO2007084143A2 (en) 2005-01-27 2007-07-26 Ra Brands, L.L.C. Firearm with enhanced corrosion and wear resistance properties
DE102005018618A1 (en) * 2005-04-21 2006-10-26 Rheinmetall Waffe Munition Gmbh Gun barrel and method of coating the inner surface of the barrel
US20100282369A1 (en) * 2007-02-05 2010-11-11 John Noveske Noveske rifleworks extreme duty machine gun barrel
KR20110010791A (en) 2008-05-19 2011-02-07 헨켈 아게 운트 코 카게아아 Mild Alkaline Thin Inorganic Coating For Corrosion Protection For Metal Substrate
DE102015201523A1 (en) * 2014-09-18 2016-03-24 Plasmatreat Gmbh Method and device for internal treatment, in particular for internal coating of a pipe
CN105441939B (en) * 2015-11-15 2018-07-10 山东能源重装集团大族再制造有限公司 Cladding method of hollow component
RU2769032C1 (en) * 2021-03-10 2022-03-28 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-Морского Флота "Военно-морская академия им. Адмирала Флота Советского Союза Н.Г. Кузнецова" Method for forming a protective coating of gun barrels

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792657A (en) * 1946-05-16 1957-05-21 Battelle Development Corp Gun barrel coated with tantalum
US4138512A (en) * 1977-10-17 1979-02-06 The United States Of America As Represented By The Secretary Of The Army Process for chemical vapor deposition of a homogeneous alloy of refractory metals
US4590033A (en) * 1984-01-26 1986-05-20 Clextral Multi-lobe composite casing for a multi-screw processing machine
US5041713A (en) * 1988-05-13 1991-08-20 Marinelon, Inc. Apparatus and method for applying plasma flame sprayed polymers
EP0766502A1 (en) * 1995-09-28 1997-04-02 Sulzer Metco (Irvine) Inc. Single cathode plasma gun with powder feed along central axis of exit barrel
WO1998034440A1 (en) * 1997-02-04 1998-08-06 State Of Israel Atomic Energy Commission, Soreq Nuclear Research Center Thermal spray coating applicator element and apparatus for using same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1182242A (en) * 1966-02-11 1970-02-25 United States Borax Chem Improvements in or relating to Nitrides.
US4097275A (en) * 1973-07-05 1978-06-27 Erich Horvath Cemented carbide metal alloy containing auxiliary metal, and process for its manufacture
DE2739356C2 (en) * 1977-09-01 1984-09-27 Audi Nsu Auto Union Ag, 7107 Neckarsulm Process for applying metal spray coatings to the inner surface of a hollow body
CH663455A5 (en) * 1984-04-19 1987-12-15 Balzers Hochvakuum TUBE WITH AN INTERNAL COATING.
US4669212A (en) * 1984-10-29 1987-06-02 General Electric Company Gun barrel for use at high temperature
JPH06347196A (en) * 1993-06-10 1994-12-20 Japan Steel Works Ltd:The Inner structure of the barrel
DE4410325C2 (en) * 1994-03-25 1997-03-27 Rheinmetall Ind Gmbh Gun barrel with an erosion-reducing insert and use of the gun barrel in electrical cannons

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792657A (en) * 1946-05-16 1957-05-21 Battelle Development Corp Gun barrel coated with tantalum
US4138512A (en) * 1977-10-17 1979-02-06 The United States Of America As Represented By The Secretary Of The Army Process for chemical vapor deposition of a homogeneous alloy of refractory metals
US4590033A (en) * 1984-01-26 1986-05-20 Clextral Multi-lobe composite casing for a multi-screw processing machine
US5041713A (en) * 1988-05-13 1991-08-20 Marinelon, Inc. Apparatus and method for applying plasma flame sprayed polymers
EP0766502A1 (en) * 1995-09-28 1997-04-02 Sulzer Metco (Irvine) Inc. Single cathode plasma gun with powder feed along central axis of exit barrel
WO1998034440A1 (en) * 1997-02-04 1998-08-06 State Of Israel Atomic Energy Commission, Soreq Nuclear Research Center Thermal spray coating applicator element and apparatus for using same

Also Published As

Publication number Publication date
EP1048921A2 (en) 2000-11-02
US6511710B2 (en) 2003-01-28
US20010051226A1 (en) 2001-12-13
DE19919687A1 (en) 2000-11-02

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