CH684617B5 - Surface coating. - Google Patents
Surface coating. Download PDFInfo
- Publication number
- CH684617B5 CH684617B5 CH970/92A CH97092A CH684617B5 CH 684617 B5 CH684617 B5 CH 684617B5 CH 970/92 A CH970/92 A CH 970/92A CH 97092 A CH97092 A CH 97092A CH 684617 B5 CH684617 B5 CH 684617B5
- Authority
- CH
- Switzerland
- Prior art keywords
- layer
- surface coating
- metal
- coating according
- titanium
- Prior art date
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
- C23C14/0015—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterized by the colour of the 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
- 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
- C23C14/0641—Nitrides
-
- 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
- G04B37/223—Materials or processes of manufacturing pocket watch or wrist watch cases metallic cases coated with a nonmetallic layer
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
- G04B37/225—Non-metallic cases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Physical Vapour Deposition (AREA)
Description
1 1
CH 684 617G A3 CH 684 617G A3
2 2nd
Beschreibung description
Die vorliegende Erfindung betrifft das Gebiet der Beschichtung von Metallen und Keramik, inbesondere zum Schutz der Oberfläche vor Umwelteinflüssen. The present invention relates to the field of coating metals and ceramics, in particular to protect the surface from environmental influences.
Zum Schutz vor mechanischen und anderen schädlichen Einflüssen sind auf dekorativen und funktionellen Oberflächen unter anderen Beschich-tungen mit Titannitriden und Titancarbonitriden im Gebrauch. Die erhaltenen Oberflächen sind hoch kratzfest auf harten Substraten bzw. kratzhemmend auf weicheren Unterlagen wie beispielsweise Edelstahl und sichern so bei hochwertigen, ästhetisch anspruchsvollen Artikeln den Zeitwert. Insbesondere in der Uhrenindustrie sind derart beschichtete Materialien von grosser Bedeutung für z.B. kratzfeste Uhrengehäuse. Ebenso sind derartige Beschichtun-gen auch für mechanisch beanspruchte Teile von Vorteil, um den Verschleiss zu vermindern. To protect against mechanical and other harmful influences, decorative and functional surfaces include coatings with titanium nitrides and titanium carbonitrides. The surfaces obtained are highly scratch-resistant on hard substrates or scratch-resistant on softer substrates such as stainless steel and thus secure the current value for high-quality, aesthetically demanding articles. In the watchmaking industry in particular, such coated materials are of great importance for e.g. scratch-resistant watch case. Coatings of this type are also advantageous for mechanically stressed parts in order to reduce wear.
Die bekannten Hartstoffschichten weisen immer auch eine eigentümliche Farbe auf. Z.B. ergibt Titannitrid (TiN) einen gelben Farbton und Titancarbo-nitrid (TiCN) einen bläulichen, violetten, roten oder bronzenen Farbton. In gewissen Fällen ist dieser Farbton erwünscht, in vielen anderen Fällen musste er bisher als Nachteil akzeptiert werden. The known hard material layers always have a peculiar color. E.g. titanium nitride (TiN) gives a yellow shade and titanium carbo-nitride (TiCN) gives a bluish, violet, red or bronze shade. In some cases this color is desirable, in many other cases it has previously been accepted as a disadvantage.
Aufgabe der vorliegenden Erfindung ist es, eine Oberflächenhartstoffbeschichtung anzugeben, die eine Oberfläche mit dem Aussehen von unbeschichtetem Stahl herzustellen erlaubt und gleichzeitig die Verschleissschutzfunktion übernimmt. The object of the present invention is to provide a surface hard material coating which allows a surface with the appearance of uncoated steel to be produced and at the same time takes on the wear protection function.
Eine derartige Beschichtung ist im Anspruch 1 definiert. Bevorzugte Ausführungen und Anwendungen sind in den weiteren Ansprüchen aufgeführt. Such a coating is defined in claim 1. Preferred designs and applications are listed in the further claims.
Demgemäss wird die erfindungsgemässe Beschichtung im wesentlichen aus Nitriden mit Metallen, vorzugsweise mit Chrom und/oder Titan aufgebaut, wobei das Atomverhältnis zwischen Metall und Stickstoff grösser als eins, bevorzugt im Bereich 1,2 bis 10 und insbesondere zu etwa 2 gewählt wird. Accordingly, the coating according to the invention is essentially composed of nitrides with metals, preferably with chromium and / or titanium, the atomic ratio between metal and nitrogen being chosen to be greater than one, preferably in the range from 1.2 to 10 and in particular about 2.
TÌ2N und Cr2N zeigen beide eine metallische Farbe weitgehend entsprechend unbeschichtetem Stahl. CrN ist gegenüber C^N dunkler, während TiN gegenüber TÌ2N, wie in der Einleitung angegeben, einen gelben Farbton aufweist. Die Beschichtung auf der Basis von Chrom ist damit gegenüber Farbverschiebungen infolge Stöchiometrieabwei-chungen wesentlich unkritischer als eine aus einer Titanverbindung. Des weiteren ist Gr2N gegenüber TÌ2N chemisch stabiler. TÌ2N kann sich z.B. durch Kontakt mit Schweiss oder ähnlichen Stoffen leicht verfärben. Andererseits erhöht aber ein Titananteil generell die Zähigkeit und Härte der Schicht. TÌ2N and Cr2N both show a metallic color largely corresponding to uncoated steel. CrN is darker than C ^ N, while TiN is yellow in color compared to TÌ2N, as stated in the introduction. The coating on the basis of chromium is therefore considerably less critical than color shifts due to deviations in stoichiometry than one made from a titanium compound. Furthermore, Gr2N is chemically more stable than TÌ2N. TÌ2N can e.g. discolor slightly through contact with sweat or similar substances. On the other hand, a titanium content generally increases the toughness and hardness of the layer.
Als besonders geeignet hat sich daher eine Mul-tilayerbeschichtung erwiesen, die auf einer Ti-Haft-schicht aufbauend zunächst eine TÌ2N-Schicht mit relativ kleinem oder gar keinem Chromanteil aufweist und über weitere Schichten mit zunehmendem Chromgehalt schliesslich an der Oberfläche nur aus Cr2N besteht. Als günstig hat sich folgende Schichtung erwiesen: auf einer Titanhaftschicht wird eine Ti-Cr-N-Schicht mit einem Atomzahlverhältnis Ti:Cr:N = 4:2:3 aufgebaut. Darauf folgt eine ähnliche Schicht mit einem Atomzahlverhältnis Ti:Cr:N = 2:8:5. Das Gesamtatomverhältnis MetalkStickstoff in den beiden letztgenannten Schichten beträgt also immer etwa 2:1. Als Deckschicht wird schliesslich eine reine Cr-N-Schicht aufgebracht mit Cr:N = 2:1. Die Beschichtung wurde in Dicken von 1 bis 3 (im ausgeführt. Es wurden Oberflächen mit Härten HVo,o05 > 2500 erzielt. A multilayer coating has therefore proven to be particularly suitable which, based on a Ti adhesive layer, initially has a TÌ2N layer with a relatively small or no chromium content and, over other layers with an increasing chromium content, finally consists only of Cr2N on the surface. The following layering has proven to be favorable: a Ti-Cr-N layer with an atomic number ratio of Ti: Cr: N = 4: 2: 3 is built up on a titanium adhesive layer. This is followed by a similar layer with an atomic number ratio of Ti: Cr: N = 2: 8: 5. The total atomic ratio of metal to nitrogen in the last two layers is always about 2: 1. Finally, a pure Cr-N layer with Cr: N = 2: 1 is applied as the top layer. The coating was carried out in thicknesses of 1 to 3 μm. Surfaces with hardnesses HVo, o05> 2500 were achieved.
In Vereinfachung dieser Ausführung können die titanhaltigen Zwischenschichten auch teilweise oder vollständig entfallen, wobei sich im Extremfall eine Beschichtung nur mit einer Cr-N-Komposition z.B. im Atomverhältnis 2:1 und gegebenenfalls einer üblichen Haftschicht zum Substrat hin ergibt. In bekannter Weise kann auch Kohlenstoff als Komponente beigegeben werden. Das Gesamtatomzahlverhältnis MetalkStickstoff = 2:1 ist jedoch für die gewünschte Farbgebung als bevorzugter Wert weiter gültig. To simplify this design, the titanium-containing intermediate layers can also be omitted partially or completely, in the extreme case a coating with only a Cr-N composition, e.g. in an atomic ratio of 2: 1 and possibly a conventional adhesive layer to the substrate. In a known manner, carbon can also be added as a component. The total atomic number ratio of metal nitrogen = 2: 1 is, however, still valid as the preferred value for the desired coloring.
Als Metallkomponenten können neben Titan und Chrom auch andere Metalle wie z.B. Zirkonium und Molybdän eingesetzt werden. In addition to titanium and chrome, other metals such as e.g. Zirconium and molybdenum can be used.
Die erfindungsgemässe Beschichtung lässt sich überraschenderweise auf einer breiten Palette von Metallen, Metallegierungen und keramischen Substraten aufbringen, wie z.B. Edelsteine (Saphir), Messing, Neusilber, Titan, Silber, Gold und Edelstahle. Weitere Vorteile der erfindungsgemässen Beschichtung sind, neben dem gewünschten Aussehen, die erhöhte Abriebfestigkeit und damit verbunden die Verschleisshemmung, eine erhöhte Korrosionsbeständigkeit und eine antiallergische Wirkung. Es können damit bisher unbeschichtete Bauteile, z.B. in Uhren, aus Stahl, Saphir, Keramik oder anderen Materialien beschichtet werden, wobei sie das Aussehen von unbeschichtetem Stahl erlangen und, insbesondere bei Stahlteilen, eine verschleiss-ärmere Oberfläche erhalten. The coating according to the invention can surprisingly be applied to a wide range of metals, metal alloys and ceramic substrates, such as e.g. Gemstones (sapphire), brass, nickel silver, titanium, silver, gold and stainless steel. In addition to the desired appearance, further advantages of the coating according to the invention are the increased abrasion resistance and associated wear resistance, increased corrosion resistance and an anti-allergic effect. This means that previously uncoated components, e.g. in watches, made of steel, sapphire, ceramic or other materials, whereby they acquire the appearance of uncoated steel and, especially with steel parts, have a lower-wear surface.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH970/92A CH684617B5 (en) | 1992-03-26 | 1992-03-26 | Surface coating. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH970/92A CH684617B5 (en) | 1992-03-26 | 1992-03-26 | Surface coating. |
Publications (2)
Publication Number | Publication Date |
---|---|
CH684617GA3 CH684617GA3 (en) | 1994-11-15 |
CH684617B5 true CH684617B5 (en) | 1995-05-15 |
Family
ID=4199440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH970/92A CH684617B5 (en) | 1992-03-26 | 1992-03-26 | Surface coating. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH684617B5 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2705225C2 (en) * | 1976-06-07 | 1983-03-24 | Nobuo Tokyo Nishida | Ornamental part for clocks etc. |
DE3623360A1 (en) * | 1986-07-11 | 1988-01-14 | Cameron Iron Works Gmbh | Device with adjacent surfaces, between which high pressures and/or high friction loads occur |
JPS6362863A (en) * | 1986-09-02 | 1988-03-19 | Seikosha Co Ltd | Golden article |
DE69025521T2 (en) * | 1989-09-11 | 1996-10-24 | Praxair Technology Inc | Multi-layer coating of a nitride-containing material and its manufacture |
JPH04368A (en) * | 1990-04-17 | 1992-01-06 | Riken Corp | Wear resistant coating film and production thereof |
-
1992
- 1992-03-26 CH CH970/92A patent/CH684617B5/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH684617GA3 (en) | 1994-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3428951C2 (en) | ||
DE3506623C2 (en) | Process for coating a thermally resistant object | |
DE2825513A1 (en) | EXTERNAL GOLD TONE ITEM | |
DE602005003493T2 (en) | Decorative article and clock | |
DE2727250C2 (en) | Surface coated cemented carbide article and method for making the same | |
EP0195205B1 (en) | Sliding element coated with ceramical material components and its usage | |
DE3728837C2 (en) | ||
DE3135344A1 (en) | "PROTECTIVE COATING FOR OBJECTS LIKE GOLD PLATED JEWELRY OR WATCH PARTS AND METHOD FOR PRODUCING SUCH PROTECTIVE COATINGS" | |
DE2851584A1 (en) | COMPOSITE BODY | |
DE2366512C2 (en) | Sintered hard metal body | |
DE3639469A1 (en) | HARD MATERIAL LAYER WITH HIGH WEAR RESISTANCE AND DECORATIVE BLACK OWN COLOR | |
EP2331729A1 (en) | Sanitary object | |
DE3427673C2 (en) | ||
CH664377A5 (en) | DECORATIVE BLACK WEAR PROTECTIVE LAYER. | |
DE2306504A1 (en) | COATED SINTER CARBIDE BODY AND PROCESS FOR ITS MANUFACTURING | |
DE3728836C2 (en) | GOLD-COLORED COATING. METHOD FOR THEIR PRODUCTION AND THEIR APPLICATION TO ARTICLES | |
DE69216156T2 (en) | Gold-colored sintered alloy | |
EP0430874A1 (en) | Object with a decorative layer | |
DE19756588A1 (en) | Layer system, process for its production and its use | |
DE2303756C3 (en) | Process for the production of a mixed carbide layer of vanadium and chromium on carbonaceous ferrous materials | |
CH684617B5 (en) | Surface coating. | |
DE3727279C2 (en) | Black-silver-colored coating for articles, process for producing such a coating and its application | |
DE10061436A1 (en) | Deforming tool used for hot deforming metallic workpieces consists of a base body made from a metallic base alloy with a wear resistant anti-adhesion coating formed as a gradient layer made from titanium and titanium-aluminum nitrides | |
DE69816030T9 (en) | The use of an object based on zirconium oxide as a wear-resistant wristwatch part and method for its production | |
EP0018432A1 (en) | Metallic article provided with a wear and corrosion resistant protective coating of tungsten carbide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |