EP1715080B1 - Procédé pour le revêtement de l'intérieur d'un tube d'arme - Google Patents

Procédé pour le revêtement de l'intérieur d'un tube d'arme Download PDF

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Publication number
EP1715080B1
EP1715080B1 EP06006655A EP06006655A EP1715080B1 EP 1715080 B1 EP1715080 B1 EP 1715080B1 EP 06006655 A EP06006655 A EP 06006655A EP 06006655 A EP06006655 A EP 06006655A EP 1715080 B1 EP1715080 B1 EP 1715080B1
Authority
EP
European Patent Office
Prior art keywords
coating
barrel
weapon barrel
coating material
protective 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.)
Revoked
Application number
EP06006655A
Other languages
German (de)
English (en)
Other versions
EP1715080A1 (fr
Inventor
Jens Buchholz
Stefan Kaufmann
Gert Schlenkert
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36748376&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1715080(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP1715080A1 publication Critical patent/EP1715080A1/fr
Application granted granted Critical
Publication of EP1715080B1 publication Critical patent/EP1715080B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • 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

Definitions

  • the invention relates to a weapon barrel, which is provided on its inner surface at least in a partial area with a protective layer.
  • the invention further relates to a method for coating the inner surface of the weapon barrel.
  • the invention has for its object to provide a method for coating the inner surface of the gun barrel with a protective layer that is easy and inexpensive to apply, and does not dissolve even at high stress of the gun barrel from the base material of the gun barrel.
  • the invention has the great advantage that a firmly adhering erosion protection layer can be produced in the weapon tubes without heat influence zones being formed or oxidation of the coating material occurring.
  • the respective coating material should have a sufficiently high ductility.
  • protective layers of tantalum have proven to be excellent, while protective layers of the relatively brittle molybdenum have appeared less suitable.
  • niobium, vandium or tungsten are available here.
  • a recess 5 is made in the subregion 3 of the weapon barrel 1.
  • the protective layer 4 is then applied according to the invention by cold gas spraying.
  • a device 6 is inserted with a Laval nozzle 7 by means of a traversing device 15 in the interior 8 of the gun barrel 1.
  • the device 6 is connected via a first line 9 to a gas source 10.
  • the corresponding pressurized gas e.g., nitrogen
  • the coating material is supplied from a container 11 via a second line 12 of the device 6 as a powder and injected in front of the Laval nozzle 7 in the gas jet and accelerated by this to the inner surface 2 of the gun barrel 1 out.
  • Preferred particle velocity should be around 600 m / s.
  • gases in addition to nitrogen, bromine or helium at about 200 ° C can be used.
  • a planar coating of the inner surface 2 of the weapon barrel 1 in the portion 3 is achieved in that the device 6 and the gun barrel 1 relative to each other perform a spiral movement.
  • the device 6 by means of the shuttle 15 both an axial and a rotational movement carry out.
  • the device 6 can also be displaced only axially by the traversing device 15 and the weapon barrel 1 can be rotated about its core axis 13 by a drive, not shown.
  • the layer thickness of the protective layer 4 to be applied initially to the inner surface 2 of the weapon barrel 1 must therefore be greater than the corresponding layer thickness of the protective layer 4 in the finished weapon barrel 1.
  • the layer thickness can be between 100 ⁇ m to 2 mm.
  • the size of the particles of the respective coating material can be about 25 microns.
  • the invention is not limited to the embodiment described above.
  • the application of the protective layer can extend both to partial areas and over the entire tube length.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (3)

  1. Procédé pour le revêtement d'au moins une région partielle de la surface intérieure d'un tube d'arme,
    comprenant les caractéristiques suivantes :
    a) le matériau de revêtement est appliqué par pulvérisation de gaz froid sur la surface intérieure du tube d'arme ;
    b) à cet effet, on dispose dans l'espace interne du tube d'arme un dispositif avec une buse de Laval, qui accélère un gaz à la vitesse des ultrasons, le matériau de revêtement étant injecté sous forme de poudre dans le jet de gaz avant la buse et étant accéléré avec celui-ci sur la surface intérieure du tube d'arme ;
    c) le dispositif est déplacé par rapport au tube d'arme, de sorte que l'on obtienne un revêtement plat (4) de la surface intérieure avec le matériau de revêtement ; et
    d) le matériau de revêtement se compose d'un métal réfractaire, d'un mélange de métaux réfractaires différents, ou d'un matériau céramique.
  2. Procédé selon la revendication 1, caractérisé en ce que le tube d'arme (1) se compose d'acier au moins sur son côté tourné vers le revêtement (4) et le matériau de revêtement se compose de tantale.
  3. Tube d'arme fabriqué avec le procédé selon l'une quelconque des revendications 1 ou 2.
EP06006655A 2005-04-21 2006-03-30 Procédé pour le revêtement de l'intérieur d'un tube d'arme Revoked EP1715080B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005018618A DE102005018618A1 (de) 2005-04-21 2005-04-21 Waffenrohr und Verfahren zur Beschichtung der inneren Oberfläche des Waffenrohres

Publications (2)

Publication Number Publication Date
EP1715080A1 EP1715080A1 (fr) 2006-10-25
EP1715080B1 true EP1715080B1 (fr) 2008-09-03

Family

ID=36748376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06006655A Revoked EP1715080B1 (fr) 2005-04-21 2006-03-30 Procédé pour le revêtement de l'intérieur d'un tube d'arme

Country Status (4)

Country Link
EP (1) EP1715080B1 (fr)
AT (1) ATE407233T1 (fr)
DE (2) DE102005018618A1 (fr)
ES (1) ES2310869T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8113413B2 (en) 2006-12-13 2012-02-14 H.C. Starck, Inc. Protective metal-clad structures
US8197894B2 (en) 2007-05-04 2012-06-12 H.C. Starck Gmbh Methods of forming sputtering targets
US8226741B2 (en) 2006-10-03 2012-07-24 H.C. Starck, Inc. Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof
US8246903B2 (en) 2008-09-09 2012-08-21 H.C. Starck Inc. Dynamic dehydriding of refractory metal powders
US8802191B2 (en) 2005-05-05 2014-08-12 H. C. Starck Gmbh Method for coating a substrate surface and coated product

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007051374A1 (de) * 2007-10-26 2009-04-30 Trw Automotive Gmbh Gaswechselventil für eine Brennkraftmaschine
US9108273B2 (en) 2011-09-29 2015-08-18 H.C. Starck Inc. Methods of manufacturing large-area sputtering targets using interlocking joints
AT14202U1 (de) * 2013-09-06 2015-05-15 Plansee Se Verfahren zur Oberflächenbehandlung mittels Kaltgasspritzen
DE102014014868B4 (de) * 2014-10-06 2017-12-14 Bernulf Cornelius Tebbe Fingerabdrucktechnik für Schusswaffen

Family Cites Families (12)

* 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
US3654895A (en) * 1969-08-15 1972-04-11 Texas Instruments Inc Apparatus for forming a refractory coating on the inner periphery of a tubular object
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
GB2090291B (en) * 1980-12-22 1985-05-15 Secr Defence Sputter ion plating of refractory metal/metal compounds
US4577431A (en) * 1984-05-02 1986-03-25 General Electric Company Wear resistant gun barrel and method of forming
US4669212A (en) * 1984-10-29 1987-06-02 General Electric Company Gun barrel for use at high temperature
DE19736028A1 (de) * 1997-08-20 1999-02-25 Rheinmetall W & M Gmbh Verfahren zur Innenbeschichtung eines Metallrohres und Vorrichtung zur Durchführung des Verfahrens
DE19919688A1 (de) * 1999-04-30 2000-11-02 Rheinmetall W & M Gmbh Verfahren zur Innenbeschichtung eines Waffenrohres
DE19919687A1 (de) * 1999-04-30 2000-11-02 Rheinmetall W & M Gmbh Verfahren zur Innenbeschichtung eines Waffenrohres
DE19926246A1 (de) * 1999-06-09 2000-12-14 Rheinmetall W & M Gmbh Verfahren zur Innenbeschichtung eines Waffenrohres
EP1403609A1 (fr) * 2002-09-18 2004-03-31 Rheinmetall W & M GmbH Procédé pour le revêtement intérieur d'une tube d'arme
US20040140292A1 (en) * 2002-10-21 2004-07-22 Kelley John E. Micro-welded gun barrel coatings

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8802191B2 (en) 2005-05-05 2014-08-12 H. C. Starck Gmbh Method for coating a substrate surface and coated product
US8226741B2 (en) 2006-10-03 2012-07-24 H.C. Starck, Inc. Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof
US8715386B2 (en) 2006-10-03 2014-05-06 H.C. Starck Inc. Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof
US8113413B2 (en) 2006-12-13 2012-02-14 H.C. Starck, Inc. Protective metal-clad structures
US8448840B2 (en) 2006-12-13 2013-05-28 H.C. Starck Inc. Methods of joining metallic protective layers
US8777090B2 (en) 2006-12-13 2014-07-15 H.C. Starck Inc. Methods of joining metallic protective layers
US9095932B2 (en) 2006-12-13 2015-08-04 H.C. Starck Inc. Methods of joining metallic protective layers
US8197894B2 (en) 2007-05-04 2012-06-12 H.C. Starck Gmbh Methods of forming sputtering targets
US8491959B2 (en) 2007-05-04 2013-07-23 H.C. Starck Inc. Methods of rejuvenating sputtering targets
US8883250B2 (en) 2007-05-04 2014-11-11 H.C. Starck Inc. Methods of rejuvenating sputtering targets
US8246903B2 (en) 2008-09-09 2012-08-21 H.C. Starck Inc. Dynamic dehydriding of refractory metal powders

Also Published As

Publication number Publication date
EP1715080A1 (fr) 2006-10-25
ATE407233T1 (de) 2008-09-15
DE102005018618A1 (de) 2006-10-26
DE502006001471D1 (de) 2008-10-16
ES2310869T3 (es) 2009-01-16

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