DE202006015821U1 - Tooth chain with chrome carbide teeth - Google Patents
Tooth chain with chrome carbide teeth Download PDFInfo
- Publication number
- DE202006015821U1 DE202006015821U1 DE200620015821 DE202006015821U DE202006015821U1 DE 202006015821 U1 DE202006015821 U1 DE 202006015821U1 DE 200620015821 DE200620015821 DE 200620015821 DE 202006015821 U DE202006015821 U DE 202006015821U DE 202006015821 U1 DE202006015821 U1 DE 202006015821U1
- Authority
- DE
- Germany
- Prior art keywords
- chain
- layer
- toothed
- tooth chain
- tooth
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/04—Toothed chains
-
- 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
- C23C14/02—Pretreatment of the material to be coated
- C23C14/027—Graded interfaces
-
- 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
- C23C14/0635—Carbides
-
- 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
- C23C28/04—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 of inorganic non-metallic material
- C23C28/044—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 of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Gears, Cams (AREA)
Abstract
Zahnkette (1) mit Zahnlaschen (5, 7), die mittels Kettengelenken miteinander verbunden sind und die jeweils mindestens einen Zahn (9, 10) mit einer Außen- und/oder einer Inneneingriffsflanke (11, 12) aufweisen, dadurch gekennzeichnet, dass die Zahnlaschen (5, 7) aus einem Stahl mit einem Kohlenstoffanteil von mindestens 0,5 % bestehen und die Außen- und/oder Inneneingriffsflanken (11, 12) mit einer Wachstumsschicht (13) versehen sind, die überwiegend Chromkarbide der Typen Cr2-3C, Cr7C3 und Cr23C6 aufweist.toothed chain (1) with toothed plates (5, 7), which by means of chain joints with each other are connected and the at least one tooth (9, 10) with an outside and / or an inner engagement flank (11, 12), characterized characterized in that the toothed plates (5, 7) made of a steel with a carbon content of at least 0.5% and the external and / or Internal engagement flanks (11, 12) provided with a growth layer (13) are that predominantly Chromium carbides of the types Cr2-3C, Cr7C3 and Cr23C6 has.
Description
Die vorliegende Erfindung betrifft eine Zahnkette mit Zahnlaschen, die mittels Kettengelenken miteinander verbunden sind und die jeweils mindestens einen Zahn mit einer Außen- und/oder einer Inneneingriffsflanke aufweisen.The The present invention relates to a toothed chain with toothed tabs connected by means of chain links and each at least one tooth with an outer and / or an inner engagement edge exhibit.
Zahnketten
werden vermehrt in den letzten Jahren im Automobilbereich eingesetzt
aufgrund Ihres guten Geräuschverhaltens.
Die Verwendung derartiger Ketten im Automobilbereich setzt hohe
Anforderungen an die Verschleißfestigkeit
der Zahnketten. Aus der
Ob die Außen- und/oder Inneneingriffsflanken der Zähne einer Zahnlasche mit dem Kettenrad in Eingriff kommen, hängt maßgeblich vom verwendeten Kettentyp ab. Übliche Zahnlaschen kommen zumeist lediglich mit den Außeneingriffsflanken in Kontakt mit dem Kettenrad, weshalb auch bei solchen Zahnlaschen eine Beschichtung an den Außeneingriffsflanken genügt. Bei sogenannten Random-Zahnketten weisen einige der Zahnlaschen anfänglich einen Innenkontakt auf, d.h. die Inneneingriffsflanke kommt zuerst mit dem Kettenrad in Berührung, der dann auf einen Außenkontakt überwechselt, d.h. die Außeneingriffsflanken kommen anschließend mit dem Kettenrad in Eingriff. Bei solchen Zahnlaschen ist es von Vorteil, wenn sowohl die Außen- als auch die Inneneingriffsflanken beschichtet werden. Ähnlich existieren Zahnlaschen, bei denen lediglich ein Kontakt mit der Inneneingriffsflanke und dem Kettenrad stattfindet und eine entsprechende Beschichtung nur an der Inneneingriffsflanke stattfinden muss.If the outside and / or Inneneingriffsflanken the teeth of a toothed plate with the Sprocket engage, hangs decisively from the type of chain used. usual Toothed flaps usually come into contact only with the outer engagement flanks with the sprocket, which is why even with such toothed plates a coating at the outer engagement edges enough. In so-called random-tooth chains have some of the toothed plates initially an inner contact, i. the interlocking flank comes first in contact with the sprocket, who then switches to an external contact, i.e. the outer engagement flanks come afterwards with the sprocket engaged. In such toothed lugs, it is of Advantage if both the external as well as the inner engaging flanks are coated. Exist similarly Toothed flaps in which only a contact with the Inneneingriffsflanke and the sprocket takes place and a corresponding coating must take place only on the inner engagement edge.
Des
Weiteren ist es im Stand der Technik bekannt, Kettenteile mit harten
Karbidschichten zu versehen. Gemäß der
Aus
der
Sämtliche im Stand der Technik beschriebenen Beschichtungen bringen schon eine wesentliche Verbesserung. Bei der Massenfertigung für den Kfz-Bereich liegt jedoch ein enormer Kostendruck vor, der dafür sorgt, dass nach preisgünstigeren Lösungen zur Verbesserung der Verschleißfestigkeit gesucht wird.All already described in the prior art coatings bring a significant improvement. In mass production for the automotive sector However, there is an enormous cost pressure, which ensures that for cheaper solutions sought to improve the wear resistance becomes.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Zahnkette der eingangs genannten Art bereitzustellen, die gute Verschleißeigenschaften aufweist und relativ einfach herzustellen ist.It is therefore the object of the present invention, a toothed chain of the type mentioned above, which has good wear properties and relatively easy to manufacture.
Dies Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Zahnlaschen aus einem Stahl mit einem Kohlenstoffanteil von mindestens 0,5 % bestehen und die Außen- und/oder Inneneingriffsflanken mit einer Wachstumsschicht versehen sind, die überwiegend Chromkarbide der Typen Cr2-3C, Cr7C3 und Cr23C6 aufweist. Der Begriff „überwiegend" bedeutet im vorliegenden Fall, dass die erwähnten Chromkarbidtypen gemeinsam in einem Gewichtsanteil von über 50 % in der Wachstumsschicht vorliegen. Bei der Verwendung einer Wachstumsschicht können einfache Stähle als Grundwerkstoffe verwendet werden. Außer Kohlenstoff müssen keine weitere nennenswerten Mengen an anderen Legierungsstoffen enthalten sein. Bevorzugt wird die Hartstoffbeschichtung mittels eines IC-Verfahrens, d.h. als IC-Beschichtung, aufgebracht. In Frage kommen hier CVD- und PVD-Verfahren, bei denen Chrom an den Außen- und/oder Inneingriffsflanken abgeschieden wird, der sich dann mit dem im Grundwerkstoff enthaltenen Kohlenstoff zu den gewünschten Typen an Chromkarbiden verbindet.This Task is inventively characterized solved, that the toothed plates are made of a steel with a carbon content of at least 0.5% and the outer and / or inner-engaging flanks are provided with a growth layer, the predominantly chromium carbides of Types Cr2-3C, Cr7C3 and Cr23C6. The term "predominantly" means in the present Case that mentioned Chromium carbide types together in a proportion by weight of more than 50% present in the growth layer. When using a growth layer can simple steels be used as base materials. No need for carbon save contain other significant amounts of other alloying substances be. Preferably, the hard coating is formed by an IC process, i. as an IC coating, applied. In question here are CVD and PVD methods, in which chromium at the outside and / or Interfacing flanks is deposited, which then with the carbon contained in the base material to the desired Types of chromium carbides connects.
Günstigerweise können die Zahnlaschen aus einem Stahl mit einem Kohlenstoffanteil von mindestens 0,6 % bestehen. Gemäß einer Variante hat sich insbesondere als Stahl ein C60 als vorteilhaft herausgestellt. Ein C60 weist außer Eisen und Kohlenstoff keine weiteren nennenswerten Mengen an anderen Legierungsbestandteilen auf. Es handelt sich hierbei um einen relativ preisgünstigen Basiswerkstoff, der für die Massenproduktion hervorragend geeignet ist.conveniently, can the toothed plates made of a steel with a carbon content of at least 0.6%. According to one Variant has proven to be particularly advantageous as steel a C60 exposed. A C60 has no iron and no carbon other significant amounts of other alloying constituents on. It is a relatively inexpensive one Base material for the mass production is excellent.
Gemäß einer Variante ist die Wachstumsschicht 10 bis 25 μm dick. Eine solche Schichtdicke ist ausreichend, einer Zahnkette die notwendige Verschleißfestigkeit zu geben. Darüber hinaus vereinfacht sich auch die Herstellung, da derartig dünne Schichten relativ schnell abgeschieden sind.According to one Variant is the growth layer 10 to 25 microns thick. Such a layer thickness is sufficient, a toothed chain the necessary wear resistance to give. About that In addition, the production is simplified because such thin layers are deposited relatively quickly.
Des Weiteren kann die Wachstumsschicht in zwei unterschiedliche Schichtstrukturen mit unterschiedlichen Chromkarbidzusammensetzungen unterteilt sein, nämlich einer Deckschicht und einer Zwischenschicht. Bevorzugt ist die Deckschicht härter als die Zwischenschicht, wobei die Zwischenschicht für eine sichere Verankerung der Deckschicht am Basiswerkstoff sorgt. Die Chromkarbidzusammensetzungen der jeweiligen Schichten sind auf diese Bedingungen abgestimmt. Vorrangig kommt es zu einer Verschiebung der Anteile der zuvor genannten Chromkarbidtypen untereinander.Furthermore, the growth layer can be divided into two different layer structures with different chromium carbide compositions, namely a cover layer and an intermediate layer. Preferably, the cover layer is harder than the intermediate layer, wherein the intermediate layer ensures a secure anchoring of the cover layer to the base material. The chromium carbide compositions of the respective layers are tuned to these conditions. Primarily, there is a shift in the proportions of the aforementioned types of chromium carbide with each other.
Ein sehr günstiges Verhältnis stellt sich bei einer Ausführungsform ein, wenn die Zwischenschicht die 3- bis 6-fache Dicke aufweist wie die Dicke der Deckschicht. Hierdurch ist auch eine gute Pufferung der härteren Deckschicht erreicht, durch die zähere Zwischenschicht.One very cheap relationship arises in one embodiment when the intermediate layer is 3 to 6 times thick like the thickness of the topcoat. This also provides good buffering the harder one Covering achieved through the tougher intermediate layer.
Im Folgenden wird die vorliegende Erfindung anhand einer Zeichnung näher erläutert. Es zeigen:in the Below, the present invention is based on a drawing explained in more detail. It demonstrate:
Die
in
Die
Außenkettenglieder
Die
Innenkettenglieder
Jede
der Zahnlaschen
Die
Außen-
und Inneneingriffsflanken
Wie
in
Die
Dicke DZ der Zwischenschicht ist 3- bis 6-mal
so groß wie
die Dicke DD der Deckschicht
Die
Hartstoffschicht
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620015821 DE202006015821U1 (en) | 2006-10-16 | 2006-10-16 | Tooth chain with chrome carbide teeth |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200620015821 DE202006015821U1 (en) | 2006-10-16 | 2006-10-16 | Tooth chain with chrome carbide teeth |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202006015821U1 true DE202006015821U1 (en) | 2008-02-21 |
Family
ID=39105555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200620015821 Expired - Lifetime DE202006015821U1 (en) | 2006-10-16 | 2006-10-16 | Tooth chain with chrome carbide teeth |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202006015821U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014019699A1 (en) | 2012-08-03 | 2014-02-06 | Iwis Motorsysteme Gmbh & Co. Kg | Friction- and wear-reducing joint for a bush chain or roller chain |
DE102012016027A1 (en) * | 2012-08-13 | 2014-05-15 | Iwis Motorsysteme Gmbh & Co. Kg | Rocker joint for bush chain or roller chain, has bush which is designed as straight circular cylinder in which through-channel is arranged in bush eccentrically to longitudinal axis of bush |
-
2006
- 2006-10-16 DE DE200620015821 patent/DE202006015821U1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014019699A1 (en) | 2012-08-03 | 2014-02-06 | Iwis Motorsysteme Gmbh & Co. Kg | Friction- and wear-reducing joint for a bush chain or roller chain |
US9657810B2 (en) | 2012-08-03 | 2017-05-23 | Iwis Motorsysteme Gmbh & Co. Kg | Friction- and wear-reducing joint for a bush chain or roller chain |
DE102012016027A1 (en) * | 2012-08-13 | 2014-05-15 | Iwis Motorsysteme Gmbh & Co. Kg | Rocker joint for bush chain or roller chain, has bush which is designed as straight circular cylinder in which through-channel is arranged in bush eccentrically to longitudinal axis of bush |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20080327 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20091026 |
|
R151 | Term of protection extended to 8 years | ||
R151 | Term of protection extended to 8 years |
Effective date: 20121119 |
|
R152 | Term of protection extended to 10 years | ||
R152 | Term of protection extended to 10 years |
Effective date: 20141107 |
|
R071 | Expiry of right |