EP0114232A1 - Poudre à pulvérisation dans une flamme pour la réalisation de vêtements résistant à l'usure - Google Patents

Poudre à pulvérisation dans une flamme pour la réalisation de vêtements résistant à l'usure Download PDF

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Publication number
EP0114232A1
EP0114232A1 EP83111466A EP83111466A EP0114232A1 EP 0114232 A1 EP0114232 A1 EP 0114232A1 EP 83111466 A EP83111466 A EP 83111466A EP 83111466 A EP83111466 A EP 83111466A EP 0114232 A1 EP0114232 A1 EP 0114232A1
Authority
EP
European Patent Office
Prior art keywords
wettable powder
weight
percent
molybdenum
layers
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.)
Granted
Application number
EP83111466A
Other languages
German (de)
English (en)
Other versions
EP0114232B1 (fr
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/fr
Application granted granted Critical
Publication of EP0114232B1 publication Critical patent/EP0114232B1/fr
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 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 sliding machine parts exposed to sliding friction are primarily provided 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 then one speaks of coatings in one or both sides chambered form.
  • molybdenum spray layers have excellent fire resistance, while their fail-resistant properties which is inferior to galvanic hard chrome layers.
  • molybdenum sprayed layers are relatively brittle, so that there is a risk of layer breakouts, especially in the case of extreme loads, both with chambered and with overmolded rings.
  • the wettable powders of DE-AS 2 433 814 consist of molybdenum with 0.5 to 45 Z iron, cobalt, nickel, titanium, vanadium, chromium, aluminum, tungsten, tantalum, rhenium and / or zirconium and 0.8 to 10 % Silicon and according to DE-OS 2 841 552 3 to 40 X aluminum alloy are 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, in particular on the running surfaces, of machine parts which are exposed to rubbing stress are used by thermal spraying processes Overmolded and can be produced in one or both sides chambered form, which at the same time have a reduced brittleness and thus an improved security against breakouts, without the fire trace safety is significantly reduced.
  • the wettable powders are said to be particularly suitable for coating piston rings in high-speed diesel engines.
  • a wettable powder which consists of a mixture of 20 to 60 parts by weight of molybdenum, 20 to 50 parts by weight of a molybdenum carbide and optionally up to 30 parts by weight of a low-melting alloy, preferably based on a chromium alloy, a chromium-nickel alloy and / or an aluminum alloy consists.
  • the preferred molybdenum carbide is a carbide with the composition MoC 2 and the preferred low-melting alloys are nickel-chromium alloys with 75-85% nickel and 15-25% chromium or aluminum alloys with 10-20% silicon and 80-90X aluminum.
  • the wettable powder can be used in the form of mixtures of the two or three components, but it is preferred to use micropellets or composite powder composed of two or possibly all 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)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Powder Metallurgy (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP83111466A 1982-12-20 1983-11-17 Poudre à pulvérisation dans une flamme pour la réalisation de vêtements résistant à l'usure Expired EP0114232B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=6181144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111466A Expired EP0114232B1 (fr) 1982-12-20 1983-11-17 Poudre à pulvérisation dans une flamme pour la réalisation de vêtements résistant à l'usure

Country Status (4)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123952A2 (fr) * 1983-04-29 1984-11-07 Goetze Ag Revêtement résistant à l'usure
EP0170763A1 (fr) * 1984-06-09 1986-02-12 Goetze Ag Revêtement protecteur contre l'usure
EP0379699A1 (fr) * 1989-01-26 1990-08-01 Asea Brown Boveri Ag Procédé pour modifier la résistance à la corrosion et à l'érosion d'une aube d'un appareil rotatif thermique et aube obtenu par ce procédé
EP0769568A1 (fr) * 1995-10-03 1997-04-23 Osram Sylvania Inc. Poudres composites à base de molybdène pour revêtements de métallisation à chaud
US9919358B2 (en) 2013-10-02 2018-03-20 H.C. Starck Gmbh Sintered molybdenum carbide-based spray powder

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515107C1 (de) * 1985-04-26 1986-07-31 Goetze Ag, 5093 Burscheid Spritzpulver fuer die Herstellung verschleissfester und ausbruchsicherer Beschichtungen
US5690716A (en) * 1994-09-09 1997-11-25 Osram Sylvania Inc. Thermal spray powder
DE19837945A1 (de) * 1998-08-21 2000-02-24 Asea Brown Boveri Schaltanordnung und Verfahren zu ihrer Herstellung
CA2371728C (fr) * 1999-06-11 2009-06-02 Neorx Corporation Complexe a forte dose de radionucleides destine a la suppression de la moelle osseuse
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
DE102015213896A1 (de) * 2015-07-23 2017-01-26 Volkswagen Aktiengesellschaft Verfahren zur Beschichtung eines metallischen Werkzeugs und Bauteil

Citations (4)

* 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
GB1099957A (en) * 1964-09-29 1968-01-17 Metco Inc Composite carbide flame spray wire or powder
DE2433814A1 (de) * 1974-07-13 1976-01-22 Goetzewerke Legierungspulver bzw. pulvergemisch fuer verschleissfeste spritzschichten
EP0009210A2 (fr) * 1978-09-23 1980-04-02 Goetze Ag Poudre à pulvériser pour l'obtention de revêtements résistant à l'usure sur les surfaces de segments de piston et de joints d'étanchéité rectiliques

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4066451A (en) * 1976-02-17 1978-01-03 Erwin Rudy Carbide compositions for wear-resistant facings and method of fabrication
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

Patent Citations (4)

* 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
GB1099957A (en) * 1964-09-29 1968-01-17 Metco Inc Composite carbide flame spray wire or powder
DE2433814A1 (de) * 1974-07-13 1976-01-22 Goetzewerke Legierungspulver bzw. pulvergemisch fuer verschleissfeste spritzschichten
EP0009210A2 (fr) * 1978-09-23 1980-04-02 Goetze Ag Poudre à pulvériser pour l'obtention de revêtements résistant à l'usure sur les surfaces de segments de piston et de joints d'étanchéité rectiliques

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 5, Nr. 71 (C-54)[743], 13. Mai 1981 & JP - A - 56 20 161 (MITSUBISHI KINZOKU K.K.) 25.02.1981 *
SCHWEISSEN UND SCHNEIDEN, Jahrgang 15, Heft 3, 1963, Seiten 97-106 *
SCHWEISSTECHNIK 27, Band 9, 1977, Seiten 396-399, DE *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123952A2 (fr) * 1983-04-29 1984-11-07 Goetze Ag Revêtement résistant à l'usure
EP0123952B1 (fr) * 1983-04-29 1988-07-13 Goetze Ag Revêtement résistant à l'usure
EP0170763A1 (fr) * 1984-06-09 1986-02-12 Goetze Ag Revêtement protecteur contre l'usure
EP0379699A1 (fr) * 1989-01-26 1990-08-01 Asea Brown Boveri Ag Procédé pour modifier la résistance à la corrosion et à l'érosion d'une aube d'un appareil rotatif thermique et aube obtenu par ce procédé
CH678067A5 (fr) * 1989-01-26 1991-07-31 Asea Brown Boveri
EP0769568A1 (fr) * 1995-10-03 1997-04-23 Osram Sylvania Inc. Poudres composites à base de molybdène pour revêtements de métallisation à chaud
US9919358B2 (en) 2013-10-02 2018-03-20 H.C. Starck Gmbh Sintered molybdenum carbide-based spray powder

Also Published As

Publication number Publication date
DE3371916D1 (en) 1987-07-09
JPS59133361A (ja) 1984-07-31
DE3247054C1 (de) 1984-05-10
JPH0325503B2 (fr) 1991-04-08
EP0114232B1 (fr) 1987-06-03
US4597939A (en) 1986-07-01

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