EP1099925A2 - Procédé pour revêtir la surface intérieure d'un tube de canon - Google Patents

Procédé pour revêtir la surface intérieure d'un tube de canon Download PDF

Info

Publication number
EP1099925A2
EP1099925A2 EP00117864A EP00117864A EP1099925A2 EP 1099925 A2 EP1099925 A2 EP 1099925A2 EP 00117864 A EP00117864 A EP 00117864A EP 00117864 A EP00117864 A EP 00117864A EP 1099925 A2 EP1099925 A2 EP 1099925A2
Authority
EP
European Patent Office
Prior art keywords
layer
intermediate layer
coating
barrel
gun barrel
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Withdrawn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
EP00117864A
Other languages
German (de)
English (en)
Other versions
EP1099925A3 (fr
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 EP1099925A2 publication Critical patent/EP1099925A2/fr
Publication of EP1099925A3 publication Critical patent/EP1099925A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • 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
    • 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 method for coating the inside of a weapon barrel, on the inner surface to avoid erosion in at least one area at least one top layer consisting of a material with a high melting point is applied by electroplating.
  • the invention has for its object a method for coating the inside of gun barrels to be specified with an electroplatable top layer when using it no erosion wear of the ammunition, even when fired Gun barrel is to be feared.
  • the invention is essentially based on the idea before applying the cover layer by electroplating an intermediate layer by explosive plating on the inner one Apply the surface of the gun barrel.
  • the top layer has the purpose of Pipe material (and thus also the intermediate layer) before the one that occurs when firing to protect high gas temperatures as well as a thermochemical reaction between the Layer system and to prevent the combustion gases
  • the intermediate layer is said to be due the high temperature in the top temperature in the top layer and in the surface area quickly lower the barrel.
  • the thermal conductivity of the Intermediate layer may be larger than that of the pipe material.
  • the intermediate layer should also have a higher ductility than the top layer and spread prevent cracks that occur in the top layer, so that the maximum expansion absorption of the layer system is increased.
  • Pure metals, metal alloys or dispersion-reinforced metals and / or metal alloys are used, provided they have a high melting point (preferably ⁇ 1600 ° C) and compared to the combustion gases are sufficiently inert. Has proven to be particularly advantageous as a layer material Chrome proved.
  • the intermediate layer should be made of a metallic material with high thermal conductivity (preferably ⁇ 90 W / mK), high ductility and sufficient strength.
  • high thermal conductivity preferably ⁇ 90 W / mK
  • the invention is distinguished The method mainly characterized in that due to the good thermal conductivity the explosive clad intermediate layer the peak temperature in the electrodeposited Top layer can be quickly lowered. As a result, the thermal, thermomechanical and thermochemical stress on the top layer is significantly reduced. It also decreases due to the fact that compared to the current galvanic hard chrome plating greater total layer thickness also the peak temperature in the boundary layer Pipe material.
  • FIG. 1 denotes a weapon barrel, which on its inner surface 2 with a cover layer 3, e.g. B. of chrome, (Fig.4) to be coated.
  • a cover layer 3 e.g. B. of chrome
  • FIG. 1 In one particular section 4 (FIG. 1) of the gun barrel 1 exposed to high temperatures an intermediate layer 5 is arranged between the chrome layer and the weapon barrel 1 which is applied by explosive plating. Explosive plating becomes one great adhesive strength of the intermediate layer 5 ensured on the gun barrel 1 without there is an unwanted melt-metallurgical interaction between the materials.
  • a recess 6 is made in the partial area 4 of the weapon barrel 1 (Fig.1), into which the intermediate layer 5 is plated (Fig.2).
  • material for the Interlayer 5 can e.g. a copper sheet or a copper foil can be used.
  • the invention is of course not based on the embodiment described above limited. So can the plating of the intermediate layer as well as the Cover layer on partial areas as well as over the entire pipe length.
  • the electropolishing and match deposition conditions to the plating material If the plating and the electroplating over the entire length of the pipe or extend over an identical portion of the weapon barrel, the electropolishing and match deposition conditions to the plating material. However, will only a partial area of the gun barrel was explosive-clad and an area beyond this partial area Part of the gun barrel is galvanically coated, so make sure that the electropolishing and deposition conditions for the plating and pipe material differ could be.
  • one or more galvanic interlayers can also be applied to ensure adhesion to ensure the top layer, since not all arbitrary material combinations let each other separate.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP00117864A 1999-11-13 2000-08-19 Procédé pour revêtir la surface intérieure d'un tube de canon Withdrawn EP1099925A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19954652 1999-11-13
DE19954652A DE19954652A1 (de) 1999-11-13 1999-11-13 Verfahren zur Innenbeschichtung eines Waffenrohres

Publications (2)

Publication Number Publication Date
EP1099925A2 true EP1099925A2 (fr) 2001-05-16
EP1099925A3 EP1099925A3 (fr) 2001-08-22

Family

ID=7928929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117864A Withdrawn EP1099925A3 (fr) 1999-11-13 2000-08-19 Procédé pour revêtir la surface intérieure d'un tube de canon

Country Status (3)

Country Link
US (1) US6500326B1 (fr)
EP (1) EP1099925A3 (fr)
DE (1) DE19954652A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7130629B2 (ja) * 2016-10-03 2022-09-05 ウエスチングハウス・エレクトリック・カンパニー・エルエルシー 原子燃料棒の事故耐性二重被膜の形成方法
RU2769032C1 (ru) * 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" Способ формирования защитного покрытия стволов орудий
US20240255247A1 (en) * 2023-01-31 2024-08-01 Wolf Precision, Inc. Barrel Throat Insert

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590033A (en) * 1984-01-26 1986-05-20 Clextral Multi-lobe composite casing for a multi-screw processing machine
DE3704774C1 (en) * 1987-02-16 1988-07-07 Rheinmetall Gmbh Barrel liner for a tube weapon (weapon with a barrel)
DE3907087A1 (de) * 1989-03-04 1990-09-13 Rheinmetall Gmbh Hochdruckbehaelter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5516415A (en) * 1993-11-16 1996-05-14 Ontario Hydro Process and apparatus for in situ electroforming a structural layer of metal bonded to an internal wall of a metal tube
US6352600B1 (en) * 1999-02-02 2002-03-05 Blount, Inc. Process for heat treating bullets comprising two or more metals or alloys, and bullets made by the method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590033A (en) * 1984-01-26 1986-05-20 Clextral Multi-lobe composite casing for a multi-screw processing machine
DE3704774C1 (en) * 1987-02-16 1988-07-07 Rheinmetall Gmbh Barrel liner for a tube weapon (weapon with a barrel)
DE3907087A1 (de) * 1989-03-04 1990-09-13 Rheinmetall Gmbh Hochdruckbehaelter

Also Published As

Publication number Publication date
EP1099925A3 (fr) 2001-08-22
DE19954652A1 (de) 2001-05-17
US6500326B1 (en) 2002-12-31

Similar Documents

Publication Publication Date Title
DE10043105B4 (de) Metallurgische Bindung beschichteter Einsätze innerhalb von Metallgußteilen
EP0075228A2 (fr) Revêtement céramique isolant thermique et résistant aux hautes températures ainsi qu'aux chocs thermiques
EP1715080B1 (fr) Procédé pour le revêtement de l'intérieur d'un tube d'arme
DE102010048075A1 (de) Bremsscheibe und Verfahren zu deren Herstellung
DE3614475C2 (fr)
EP0787218A1 (fr) Materiau stratifie et son procede de fabrication
DE102004055228A1 (de) Thermisch gespritzte Lagerschalen für Pleuel
DE19919687A1 (de) Verfahren zur Innenbeschichtung eines Waffenrohres
WO2019219551A1 (fr) Corps de freinage et procédé de fabrication associé
EP1099925A2 (fr) Procédé pour revêtir la surface intérieure d'un tube de canon
EP3754290B1 (fr) Procédé de fabrication d'un composant de blindage pour véhicules automobiles
EP0741116B1 (fr) Procédé de fabrication d'élément à haute résistance thermique
DE4227068A1 (de) Vollgeschoß für Handfeuerwaffen
EP1561836A1 (fr) Procédé de fabrication d'une cible
EP1059502A2 (fr) Procédé pour revêtir la surface interne d'un tube de canon
DE19724847B4 (de) Liderungssystem für Artilleriewaffen
DE102010049840B4 (de) Bauteil mit einer Verschleißschutzschicht
EP0499832B1 (fr) Balle pour arme portative
EP1186847B1 (fr) Procédé pour réparer les détériorations de couches ou les détériorations faites par l'érosion
DE19544824A1 (de) Gezogenes Waffenrohr und Verfahren zur Herstellung eines derartigen Rohres
DE19918794C2 (de) Verfahren zur Herstellung eines Waffenrohres
EP1003008B1 (fr) Procedé de fabrication d'un canon avec une revêtement interne de chromium
EP0977002B1 (fr) Tube de canon muni d'une couche de chrome dur pour réduire l'usure
DE3844160C2 (fr)
WO2005028818A1 (fr) Soupape constituee de plusieurs pieces pour moteur a combustion interne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010725

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040302