EP0114232B1 - Spritzpulver für die Herstellung verschleissfester Beschichtungen - Google Patents

Spritzpulver für die Herstellung verschleissfester Beschichtungen Download PDF

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Publication number
EP0114232B1
EP0114232B1 EP83111466A EP83111466A EP0114232B1 EP 0114232 B1 EP0114232 B1 EP 0114232B1 EP 83111466 A EP83111466 A EP 83111466A EP 83111466 A EP83111466 A EP 83111466A EP 0114232 B1 EP0114232 B1 EP 0114232B1
Authority
EP
European Patent Office
Prior art keywords
spray powder
percent
weight
alloy
fact
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.)
Expired
Application number
EP83111466A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0114232A1 (de
Inventor
Horst Dr. Beyer
Ulrich Dipl.-Ing. Buran
Manfred Dr. Fischer
Hans Jochem Dr. Neuhäuser
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.)
Goetze GmbH
Original Assignee
Goetze 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 Goetze GmbH filed Critical Goetze GmbH
Publication of EP0114232A1 publication Critical patent/EP0114232A1/de
Application granted granted Critical
Publication of EP0114232B1 publication Critical patent/EP0114232B1/de
Expired legal-status Critical Current

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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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material

Definitions

  • the invention relates to a wettable powder for the production of wear-resistant coatings on the running and friction surfaces of sliding friction from exposed machine parts, such as in particular piston rings in high-speed diesel engines, the friction surfaces of synchronizer rings or the top land of piston heads of the pistons in internal combustion engines, preferably by a plasma spraying process.
  • the running surfaces of machine parts exposed to sliding friction are provided primarily with galvanic hard chrome layers or with thermally sprayed protective coatings made of preferably metals or metal alloys.
  • Molybdenum in particular, has proven to be an excellent spray material for coating the running surfaces of piston rings for internal combustion engines. The molybdenum is either applied over the entire surface and one speaks of coatings in overmolded form, or grooves and recesses are worked into the treads, which are then filled with the spray material, and one then speaks of coatings in one or both sides chambered form.
  • molybdenum spray coatings have excellent fire resistance, while their wear resistance is inferior to that of galvanic hard chrome coatings.
  • molybdenum spray layers are relatively brittle, so that there is a risk of layer breakouts, especially in the case of extreme loads, both in the case of chambered and overmolded rings.
  • the wettable powders of DE-AS 2433814 consist of molybdenum with 0.5 to 45% iron, cobalt, nickel, titanium, vanadium, chromium, aluminum, tungsten, tantalum, rhenium and / or zirconium and 0.8 to 10% silicon, and According to DE-OS 2841 552, 3 to 40% aluminum alloy is mixed with the molybdenum.
  • Both wettable powders may additionally contain hard materials based on carbides, nitrides, oxides and / or intermetallic compounds.
  • the present invention is therefore based on the object of finding wettable powder compositions from which wear-resistant coatings can be produced on machine parts exposed to rubbing stress, in particular in overmolded and chambered form on one or both sides, by thermal spraying processes, which at the same time have a reduced brittleness and thus have improved outbreak security without significantly reducing fire trail security.
  • the wettable powders are said to be particularly suitable for coating piston rings in high-speed diesel engines.
  • this object is achieved by a wettable powder which consists of the three components 20 to 60 percent by weight of molybdenum, 20 to 50 percent by weight of molybdenum carbide and up to 30 percent by weight of a low-melting alloy based on a chromium alloy, a chromium-nickel alloy and / or an aluminum alloy.
  • the preferred molybdenum carbide is a carbide with the composition M 02 C, and the preferred low-melting alloys are nickel-chromium alloys with 75 to 85% nickel and 15 to 25% chromium or aluminum alloys with 10 to 20% silicon and 80 to 90% aluminum.
  • the wettable powder can be used in the form of mixtures of the three components, but preferably the wettable powder contains micropellets and / or composite powder from at least two of the components, and the powders are preferably applied by a plasma spraying process.
  • the wettable powders according to the invention are also to be used preferably for coating piston rings, they can also be used for similar applications in the sense of the invention. It was found that the powder is also suitable for coating the top land and piston crowns of the pistons in internal combustion engines, and the friction surfaces of synchronizer rings were also coated with the powders according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Powder Metallurgy (AREA)
EP83111466A 1982-12-20 1983-11-17 Spritzpulver für die Herstellung verschleissfester Beschichtungen Expired EP0114232B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3247054A DE3247054C1 (de) 1982-12-20 1982-12-20 Spritzpulver fuer die Herstellung verschleissfester Beschichtungen
DE3247054 1982-12-20

Publications (2)

Publication Number Publication Date
EP0114232A1 EP0114232A1 (de) 1984-08-01
EP0114232B1 true EP0114232B1 (de) 1987-06-03

Family

ID=6181144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111466A Expired EP0114232B1 (de) 1982-12-20 1983-11-17 Spritzpulver für die Herstellung verschleissfester Beschichtungen

Country Status (4)

Country Link
US (1) US4597939A (enExample)
EP (1) EP0114232B1 (enExample)
JP (1) JPS59133361A (enExample)
DE (2) DE3247054C1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315556C1 (de) * 1983-04-29 1984-11-29 Goetze Ag, 5093 Burscheid Verschleissfeste Beschichtung
DE3421569C1 (de) * 1984-06-09 1985-06-27 Goetze Ag, 5093 Burscheid Verschleissfeste Beschichtung
DE3515107C1 (de) * 1985-04-26 1986-07-31 Goetze Ag, 5093 Burscheid Spritzpulver fuer die Herstellung verschleissfester und ausbruchsicherer Beschichtungen
CH678067A5 (enExample) * 1989-01-26 1991-07-31 Asea Brown Boveri
US5690716A (en) 1994-09-09 1997-11-25 Osram Sylvania Inc. Thermal spray powder
US5641580A (en) * 1995-10-03 1997-06-24 Osram Sylvania Inc. Advanced Mo-based composite powders for thermal spray applications
DE19837945A1 (de) * 1998-08-21 2000-02-24 Asea Brown Boveri Schaltanordnung und Verfahren zu ihrer Herstellung
AU5871000A (en) * 1999-06-11 2001-01-02 Paul G. Abrams High dose radionuclide complexes for bone marrow suppression
US7645315B2 (en) * 2003-01-13 2010-01-12 Worldwide Strategy Holdings Limited High-performance hardmetal materials
JP4289926B2 (ja) 2003-05-26 2009-07-01 株式会社小松製作所 摺動材料、摺動部材および摺動部品並びにそれが適用される装置
DE10361166A1 (de) * 2003-12-22 2005-07-28 Meisel, Jörg, Dr. Bauteilanordnung für eine Prothese
JP4059246B2 (ja) * 2004-12-10 2008-03-12 日産自動車株式会社 粗面化加工方法および切削工具
US8906130B2 (en) 2010-04-19 2014-12-09 Praxair S.T. Technology, Inc. Coatings and powders, methods of making same, and uses thereof
DE102013220040A1 (de) 2013-10-02 2015-04-02 H.C. Starck Gmbh Gesinterte Spritzpulver auf Basis von Molybdänkarbid
DE102015213896A1 (de) * 2015-07-23 2017-01-26 Volkswagen Aktiengesellschaft Verfahren zur Beschichtung eines metallischen Werkzeugs und Bauteil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313633A (en) * 1963-07-24 1967-04-11 Metco Inc High temperature flame spray powder
US3419415A (en) * 1964-09-29 1968-12-31 Metco Inc Composite carbide flame spray material
US3713788A (en) * 1970-10-21 1973-01-30 Chromalloy American Corp Powder metallurgy sintered corrosion and heat-resistant, age hardenable nickel-chromium refractory carbide alloy
DE2433814B2 (de) * 1974-07-13 1977-08-04 Goetzewerke Friedrich Goetze Ag, 5093 Burscheid Plasmaspritzpulver fuer verschleissfeste beschichtungen
US4066451A (en) * 1976-02-17 1978-01-03 Erwin Rudy Carbide compositions for wear-resistant facings and method of fabrication
DE2841552C2 (de) * 1978-09-23 1982-12-23 Goetze Ag, 5093 Burscheid Spritzpulver für die Herstellung verschleißfester Beschichtungen auf den Laufflächen gleitender Reibung ausgesetzter Maschinenteile
JPS5839759A (ja) * 1981-09-02 1983-03-08 Hitachi Metals Ltd 高融点金属鋳造または高温ガラス成形用工具材料とその製造方法

Also Published As

Publication number Publication date
JPH0325503B2 (enExample) 1991-04-08
DE3371916D1 (en) 1987-07-09
DE3247054C1 (de) 1984-05-10
JPS59133361A (ja) 1984-07-31
US4597939A (en) 1986-07-01
EP0114232A1 (de) 1984-08-01

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