DE4127639A1 - FRICTION PAIRING AND METHOD FOR THEIR PRODUCTION - Google Patents
FRICTION PAIRING AND METHOD FOR THEIR PRODUCTIONInfo
- Publication number
- DE4127639A1 DE4127639A1 DE4127639A DE4127639A DE4127639A1 DE 4127639 A1 DE4127639 A1 DE 4127639A1 DE 4127639 A DE4127639 A DE 4127639A DE 4127639 A DE4127639 A DE 4127639A DE 4127639 A1 DE4127639 A1 DE 4127639A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- counter
- friction pairing
- rotating
- pairing according
- 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
Links
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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0605—Carbon
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
- F01L1/16—Silencing impact; Reducing wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
Description
Die Erfindung betrifft eine Reibpaarung, bestehend aus der Nockenlauffläche einer Nockenwelle und einer Gegenläufer schicht, die auf das Grundmaterial eines z. B. als Tassen stößel, Schlepp- oder Kipphebel ausgebildeten Gegenläufers aufgebracht ist.The invention relates to a friction pair consisting of the Cam tread of a camshaft and a counter rotor layer that on the base material of a z. B. as cups tappet, rocker arm or rocker arm trained counter-rotating is applied.
Die Erfindung betrifft ferner ein Verfahren zur Herstellung einer derartigen Reibpaarung.The invention further relates to a method of manufacture such a friction pairing.
Die üblicherweise zur Ventilsteuerung eingesetzte Materialpaa rung von z. B. Tassenstößeln und Nockenwellen aus Einsatzstahl und Schalenhartguß im nitrierten oder unnitrierten Zustand weist meist hohe Reibwerte und dementsprechend auch einen ho hen Verschleiß auf. Als nachteilig erweist sich ferner, daß die angestellten Federkräfte nicht weiter erhöht werden kön nen, was aber zur präziseren Ventilsteuerung wünschenswert wäre.The material pair usually used for valve control tion of z. B. tappets and camshafts made of case hardening steel and chilled cast iron in the nitrided or non-nitrided state usually has high coefficients of friction and accordingly also a ho hen wear on. A further disadvantage is that the spring force cannot be increased any further nen, but what is desirable for more precise valve control would.
Der Erfindung liegt die Aufgabe zugrunde, eine Reibpaarung der eingangs beschriebenen Art mit reduzierten Reibwerten und ge ringerem Verschleiß sowie ein Verfahren zu deren Herstellung zu entwickeln.The invention has for its object a friction pairing type described above with reduced coefficients of friction and ge less wear and a process for their production to develop.
Die Aufgabe wird hinsichtlich der Reibpaarung erfindungsgemäß dadurch gelöst, daß die Gegenläuferschicht eine nanodisperse, amorphe Metall-Kohlenstoffschicht ist, die zu 50 bis 90 At% aus Kohlenstoff, 2 bis 25 At% aus Wasserstoff und Rest aus Me tall besteht, wobei der Kohlenstoff zum Teil in Diamantbin dungsstruktur vorliegt.The task is according to the invention with regard to the friction pairing solved in that the counter-rotating layer is a nanodisperse, amorphous metal-carbon layer that is 50 to 90 at% from carbon, 2 to 25 at% from hydrogen and the rest from Me tall exists, the carbon in part in diamond structure exists.
Der besondere Vorteil der erfindungsgemäß gestalteten Gegen läuferschicht liegt einerseits in ihrem geringen Reibkoef fizienten im Kontakt mit metallischen Gleitpartnern und ande rerseits darin, daß das Motoröl im Gleitkontakt nicht kataly tisch zersetzt wird zu Sikkativen.The particular advantage of the counter designed according to the invention On the one hand, the rotor layer lies in its low friction coefficient efficient in contact with metallic sliding partners and others on the other hand in that the engine oil in the sliding contact is not catalyzed the table is broken down into siccatives.
Die die Gegenläuferschicht bildende Kohlenstoffschicht kann erfindungsgemäß nach verschiedenen Verfahren hergestellt wer den. Möglich ist eine Herstellung nach dem Plasma-CVD-Verfah ren, mit dem sich Ion-Carbon (i-C) oder Amorphous-Carbonhydro gen (a-CH) herstellen lassen, die kein Metall enthalten. Mög lich ist aber auch eine Herstellung nach dem PVD-Verfahren, wie z. B. Sputter- oder ARC-Technologie, wobei gleichzeitig Metalle verdampft und in die zu bildende Schicht eingebaut werden, die auch als Metal-Carbonhydrogen-Schichten (Me-CH) bezeichnet werden. Der Kohlenstoff bildet dabei mit den Metal len Metalcarbide aus, so daß sich eine erhöhte Temperaturbe ständigkeit der Schicht ergibt. The carbon layer forming the counter-rotating layer can according to the invention by various processes the. Production using the plasma CVD method is possible with which ion carbon (i-C) or amorphous carbon hydro Have gen (a-CH) produced that contain no metal. Poss However, production using the PVD process is also possible, such as B. sputtering or ARC technology, at the same time Metals evaporate and built into the layer to be formed that are also known as metal-carbon hydrogen layers (Me-CH) be designated. The carbon forms with the metal len metal carbides, so that an increased Temperaturbe durability of the layer results.
Das Metall der Gegenläuferschicht kann Titan, Niob, Tantal, Chrom, Molybdän, Eisen und/oder Wolfram sein. Vorzugsweise aber werden die Metalle Wolfram, Tantal und Titan in die Gegenläuferschicht eingebaut und zwar entweder einzeln oder aber als Legierungsbestandteile von Mischlegierungsverdamper platten.The metal of the counter-rotating layer can be titanium, niobium, tantalum, Chromium, molybdenum, iron and / or tungsten. Preferably but the metals tungsten, tantalum and titanium are incorporated into the Counter-rotating layer installed either individually or but as alloy components of mixed alloy evaporators plates.
Die Gegenläuferschicht weist vorzugsweise eine Dicke von 2 bis 12 Mikrometer, eine Härte (H) von < 2000 HV 0.01, eine glasar tige Struktur und/oder eine keine scharfen Spitzen aufweisende Oberflächenrauhigkeit (Rz) zwischen 0,8 und 3 Mikrometer auf.The counter-rotating layer preferably has a thickness of 2 to 12 microns, a hardness (H) of <2000 HV 0.01, a glass structure and / or a non-sharp point Surface roughness (Rz) between 0.8 and 3 micrometers.
Die im wesentlichen kohlenstoffhaltigen Schichten der Gegen läuferschicht werden vorzugsweise mit zumindest einer Zwischenschicht auf das Grundmaterial aufgebracht. Hierzu eignen sich besonders Chrom- oder chromhaltige Schichten. Wählt man als Zwischenschicht eine Kombination Chrom/Chrom nitrid, so ergibt sich hieraus nicht nur der Vorteil einer er höhten Haftfestigkeit für die amorphe, diamantähnliche Kohlen stoffschicht, sondern noch der zusätzliche Vorteil, daß mit dieser sehr haftfesten Zwischenschicht eine tribologisch gün stig wirkende "Gleit- und Verschleißreserve" geschaffen wird. Sollte nämlich nach einer gewissen Gebrauchsdauer die auflie gende amorphe Schicht teilweise verschlissen oder verletzt sein, wirkt die Chromnitridschicht verschleiß- oder ölzerset zungshemmend.The essentially carbon-containing layers of the counter Runner layer are preferably with at least one Intermediate layer applied to the base material. For this Chromium or chromium-containing layers are particularly suitable. If you choose a combination chrome / chrome as an intermediate layer nitride, this not only gives the advantage of one increased adhesive strength for the amorphous, diamond-like coals layer of material, but still the additional advantage that with this very adhesive intermediate layer is tribologically green stig acting "sliding and wear reserve" is created. If after a certain period of use the amorphous layer partially worn or injured the chrome nitride layer is wear or oil decomposed anti-tongue.
Statt Chromnitrid lassen sich für die Zwischenschicht auch an dere, ähnlich wirkende Metalle verwenden wie z. B. Titan nitrid, Titancarbit, Cirkoniumnitrid und dergleichen.Instead of chrome nitride can also be used for the intermediate layer use similar metals like z. B. Titan nitride, titanium carbite, zirconium nitride and the like.
Die Dicke der Zwischenschicht beträgt vorzugsweise 0,1 bis 5 Mikrometer. The thickness of the intermediate layer is preferably 0.1 to 5 Micrometer.
Um von vornherein einen günstigen Schmiertascheneffekt zu er zielen, ist es vorteilhaft, wenn vor dem Aufbringen der Gegen läuferschicht bzw. der Zwischenschicht die zu beschichtende Fläche des Gegenläufers mit einem Strukturschliff mit einer Rauhtiefe von 0,5 bis 10 Mikrometer versehen wird. Alternativ kann auch eine sogenannte Orangenhaut an der Oberfläche er zeugt werden.To achieve a favorable lubrication pocket effect from the outset aim, it is advantageous if before applying the counter runner layer or the intermediate layer to be coated Surface of the counter-runner with a textured section with a Roughness of 0.5 to 10 microns is provided. Alternatively can also have a so-called orange peel on the surface be fathered.
Eine besonders vorteilhafte Reibpaarung zeichnet sich erfin dungsgemäß dadurch aus, daß die Nockenlauffläche eine feinst körnige ledeburitische Schicht aufweist, die im Laserum schmelzverfahren gehärtet ist.A particularly advantageous friction pairing is invented according to the fact that the cam tread a finest has granular ledeburitic layer in the laser melting process is hardened.
Die Dicke der die fertig bearbeitete Nockenlauffläche bilden den Schicht beträgt vorzugsweise 50 bis 400 Mikrometer.Form the thickness of the finished cam tread the layer is preferably 50 to 400 microns.
Schließlich ist es vorteilhaft, wenn die die Nockenlauffläche bildende Schicht nach dem Laserumschmelzen fein geschliffen wird.Finally, it is advantageous if the cam tread forming layer finely ground after laser remelting becomes.
In der Zeichnung ist eine als Beispiel dienende Ausführungs form der Erfindung schematisch dargestellt.In the drawing is an exemplary embodiment form of the invention shown schematically.
Die Zeichnung zeigt eine Nockenwelle 1 mit einer Nockenlauf fläche 2, die mit einer Gegenläuferschicht 3 eines Gegenläu fers 4 zusammenwirkt.The drawing shows a camshaft 1 with a cam surface 2 , which interacts with a counter-rotating layer 3 of a Gegenläu fers 4 .
Die Nockenlauffläche 2 wird von einer feinstkörnigen ledeburi tischen Schicht 5 gebildet, die im Laserumschmelzverfahren ge härtet ist.The cam tread 2 is formed by a fine grain ledeburi table layer 5 , which is hardened in the laser remelting process.
Die Gegenläuferschicht 3 ist eine Cerid-Schicht, die über eine Zwischenschicht 6 auf den Gegenläufer 4 aufgebracht ist, der z. B. aus 16 MnCr 5 bestehen kann.The counter-runner layer 3 is a ceride layer which is applied to the counter-runner 4 via an intermediate layer 6 . B. may consist of 16 MnCr 5 .
Claims (19)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4127639A DE4127639C2 (en) | 1990-11-05 | 1991-08-21 | Low-friction wear layer, its use and its manufacture |
EP91117531A EP0484699B1 (en) | 1990-11-05 | 1991-10-15 | Friction pairing and its method of manufacture |
DE9191117531T DE59100303D1 (en) | 1990-11-05 | 1991-10-15 | FRICTION PAIRING AND METHOD FOR THEIR PRODUCTION. |
JP3302698A JPH05239647A (en) | 1990-11-05 | 1991-10-23 | Friction layer and its manufacture |
US07/786,809 US5205188A (en) | 1990-11-05 | 1991-11-05 | Friction pairing and process for its production |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9015179 | 1990-11-05 | ||
DE4127639A DE4127639C2 (en) | 1990-11-05 | 1991-08-21 | Low-friction wear layer, its use and its manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4127639A1 true DE4127639A1 (en) | 1992-05-07 |
DE4127639C2 DE4127639C2 (en) | 1995-10-12 |
Family
ID=6859039
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4127639A Expired - Fee Related DE4127639C2 (en) | 1990-11-05 | 1991-08-21 | Low-friction wear layer, its use and its manufacture |
DE9191117531T Expired - Fee Related DE59100303D1 (en) | 1990-11-05 | 1991-10-15 | FRICTION PAIRING AND METHOD FOR THEIR PRODUCTION. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9191117531T Expired - Fee Related DE59100303D1 (en) | 1990-11-05 | 1991-10-15 | FRICTION PAIRING AND METHOD FOR THEIR PRODUCTION. |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE4127639C2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4220584A1 (en) * | 1992-06-24 | 1994-01-05 | Schaeffler Waelzlager Kg | Control device for the valve train of an internal combustion engine |
US6012278A (en) * | 1997-06-13 | 2000-01-11 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Open-end spinning rotor with a coated fiber guiding surface and process for its manufacture |
DE19944977B4 (en) * | 1998-09-21 | 2008-06-19 | Caterpillar Inc., Peoria | Coatings for use in fuel injector components |
EP1712749A3 (en) * | 2005-04-11 | 2009-06-24 | Schaeffler KG | Switchable valve lifter |
DE102009053046A1 (en) * | 2009-11-16 | 2011-05-19 | Mahle International Gmbh | Cam or bearing ring for cam shaft in internal combustion engine, has diamond like carbon layer at bearing ring surface, where layer is formed by physical vapor deposition method or plasma assisted chemical vapor deposition method |
EP2682230A2 (en) | 2012-07-06 | 2014-01-08 | MAHLE International GmbH | Method for producing/machining a cam |
CN106352044A (en) * | 2016-07-25 | 2017-01-25 | 马勒技术投资(中国)有限公司 | Cam piece with anti-abrasion coating |
CN109355623A (en) * | 2018-11-28 | 2019-02-19 | 福建工程学院 | A kind of wear-resisting acidproof nontoxic artificial graft's object film layer preparation method |
CN109355624A (en) * | 2018-11-28 | 2019-02-19 | 福建工程学院 | A kind of tool surface diamond-like composite membrane |
CN114214555A (en) * | 2021-12-16 | 2022-03-22 | 中国科学院宁波材料技术与工程研究所 | Cavitation-corrosion-resistant metal-ceramic matrix composite material and preparation method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19928498A1 (en) * | 1999-06-22 | 2000-12-28 | Nmi Univ Tuebingen | Torque-conveying working surface for e.g. screwdrivers, spanners and bits has a thin smooth amorphous hard layer containing silicon covering the working surface |
DE102004028221A1 (en) | 2004-06-09 | 2005-12-29 | Ina-Schaeffler Kg | Highly stressed engine component |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873150A (en) * | 1986-10-27 | 1989-10-10 | Hitachi, Ltd. | High water-resistant member, and valve gear using the same for use in internal combustion engine |
-
1991
- 1991-08-21 DE DE4127639A patent/DE4127639C2/en not_active Expired - Fee Related
- 1991-10-15 DE DE9191117531T patent/DE59100303D1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873150A (en) * | 1986-10-27 | 1989-10-10 | Hitachi, Ltd. | High water-resistant member, and valve gear using the same for use in internal combustion engine |
Non-Patent Citations (3)
Title |
---|
Oberflächen- und Dünnschicht-Technologie, Springer Verlag, Teil 1, 1987(veröffentlicht) * |
RenE A. Haefer * |
Teil 2, 1991(nachveröffentlicht) * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4220584A1 (en) * | 1992-06-24 | 1994-01-05 | Schaeffler Waelzlager Kg | Control device for the valve train of an internal combustion engine |
DE4220584C2 (en) * | 1992-06-24 | 2001-02-01 | Schaeffler Waelzlager Ohg | Valve train of an internal combustion engine |
US6012278A (en) * | 1997-06-13 | 2000-01-11 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Open-end spinning rotor with a coated fiber guiding surface and process for its manufacture |
US7942343B2 (en) | 1998-09-21 | 2011-05-17 | Caterpillar Inc. | Coatings for use in fuel injector components |
US7484672B2 (en) | 1998-09-21 | 2009-02-03 | Caterpillar Inc. | Coatings for use in fuel injector components |
DE19944977B4 (en) * | 1998-09-21 | 2008-06-19 | Caterpillar Inc., Peoria | Coatings for use in fuel injector components |
EP1712749A3 (en) * | 2005-04-11 | 2009-06-24 | Schaeffler KG | Switchable valve lifter |
DE102009053046A1 (en) * | 2009-11-16 | 2011-05-19 | Mahle International Gmbh | Cam or bearing ring for cam shaft in internal combustion engine, has diamond like carbon layer at bearing ring surface, where layer is formed by physical vapor deposition method or plasma assisted chemical vapor deposition method |
EP2682230A2 (en) | 2012-07-06 | 2014-01-08 | MAHLE International GmbH | Method for producing/machining a cam |
DE102012211864A1 (en) | 2012-07-06 | 2014-05-22 | Mahle International Gmbh | Method of manufacturing / machining a cam |
CN106352044A (en) * | 2016-07-25 | 2017-01-25 | 马勒技术投资(中国)有限公司 | Cam piece with anti-abrasion coating |
CN106352044B (en) * | 2016-07-25 | 2019-10-25 | 马勒技术投资(中国)有限公司 | Cam bit equipped with wear-resistant coating |
CN109355623A (en) * | 2018-11-28 | 2019-02-19 | 福建工程学院 | A kind of wear-resisting acidproof nontoxic artificial graft's object film layer preparation method |
CN109355624A (en) * | 2018-11-28 | 2019-02-19 | 福建工程学院 | A kind of tool surface diamond-like composite membrane |
CN114214555A (en) * | 2021-12-16 | 2022-03-22 | 中国科学院宁波材料技术与工程研究所 | Cavitation-corrosion-resistant metal-ceramic matrix composite material and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE4127639C2 (en) | 1995-10-12 |
DE59100303D1 (en) | 1993-09-23 |
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8125 | Change of the main classification |
Ipc: F16H 53/00 |
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D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8339 | Ceased/non-payment of the annual fee |