DE2256641A1 - Gold plating spectacle frames - by two-stage electro-plating process follo-wed by diffusion annealing treatment - Google Patents
Gold plating spectacle frames - by two-stage electro-plating process follo-wed by diffusion annealing treatmentInfo
- Publication number
- DE2256641A1 DE2256641A1 DE2256641A DE2256641A DE2256641A1 DE 2256641 A1 DE2256641 A1 DE 2256641A1 DE 2256641 A DE2256641 A DE 2256641A DE 2256641 A DE2256641 A DE 2256641A DE 2256641 A1 DE2256641 A1 DE 2256641A1
- Authority
- DE
- Germany
- Prior art keywords
- gold
- layer
- plating
- diffusion annealing
- follo
- 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.)
- Pending
Links
- 238000007747 plating Methods 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims description 8
- 238000009792 diffusion process Methods 0.000 title claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims description 5
- 229910052737 gold Inorganic materials 0.000 title claims description 5
- 239000010931 gold Substances 0.000 title claims description 5
- 238000000137 annealing Methods 0.000 title claims 3
- 238000009713 electroplating Methods 0.000 title abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 239000010953 base metal Substances 0.000 claims description 6
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims 1
- 230000003213 activating effect Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 229910001020 Au alloy Inorganic materials 0.000 description 4
- 239000003353 gold alloy Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 238000003197 gene knockdown Methods 0.000 description 2
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 2
- 239000010956 nickel silver Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 150000002940 palladium Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/62—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of gold
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
"Verfahren zum Plattieren von Scnmuck- und Gebrauchsgegenständen mit einer Goldlegierungsschicht, inabes. von Metallbrillengestel-len" Die Erfindung bezieht sich auf ein Verfahren zum Plattieren von Scheuck- und Gebrauchsgegenständemit einer Goldlegierungsschicht, insbes. von Metallbrillengestellen. "Process for plating jewelry and articles of daily use with a gold alloy layer, inabes. of metal glasses frames "The invention relates to a method for plating objects of wear and tear with a gold alloy layer, esp. of metal glasses frames.
Das Verfahren kommt vornehmlich für Metallbrillengestelle in Xrage. Hierbei ist eine bestimmte Färbung des Metallrahmens in blaßrosé erwünscht.The process is mainly used for metal glasses frames in Xrage. A certain coloration of the metal frame in pale pink is desirable.
Bei Brillengestellen aus Doublé-Draht wird diese Farbeinstellung durch Wahl der richtigen Goldlegierung (Gold-Kupfer-Wickel) für die Drahtauflage erreicht. Doch wird Doublé-Draht wegen seiner schlechten Verarbeitbarkeit (Korrosion an den Schnittstellen) und Herstellbarkeit nur bestimmter Rahmenformen für Brillengestelle immer weniger verwendet.In the case of frames made of doublé wire, this color setting is carried out Choosing the right gold alloy (gold-copper winding) for the wire lay-up is achieved. However, doublé wire is used because of its poor processability (corrosion on the Interfaces) and manufacturability of only certain frame shapes for spectacle frames used less and less.
Es ist andererseits bekannt, auf das Grundmetall (Neusilber) eines Brillengestells galvanisch eine Gold-Kupferschicht aufzubringen. Doch ist diese Schicht nicht auf die gewünschte blaßrosé Farbtönung einzustellen und durch örtliche Anreicherung von Kupfer auch nicht anlaufbeständig.On the other hand, it is known to use the base metal (nickel silver) of a To apply a gold-copper layer galvanically to the spectacle frame. But this is Layer does not adjust to the desired pale pink shade and through local Enrichment of copper is also not tarnish-resistant.
Nachdem gefunden wurde, daß sich Palladium zur Farbeinstellung eignet, ist es auch bekannt,auf das Grundmetall eine Gold-Supfer-Palladium-Legierung galvanisch niederzuschlagen. Eine gut haftende Schicht, die mit diesem im Handel erhältlichen Bad hergestellt wird, erreicht jedoch einen hohen Feingoldgehalt und ist wegen der Kupferarmut im Farbton sehr blaß; auch ist dieses Palladium-Bad durch die Dreikomponenteneinstellung entsprechend empfindlich.After it has been found that palladium is suitable for color adjustment, it is also known to electroplate a gold-supfer-palladium alloy on the base metal knock down. A well-adhering layer that is commercially available with this one Bath is produced, however, reaches a high fine gold content and is because of the Very pale in color, poor in copper; This palladium bath is also due to the three-component setting accordingly sensitive.
Der Erfindung liegt nun die aufgabe zugrunde, eine Goldlegierungaschicht mit einstellbarem Farbton haltbar Galvanisch auf dem im übrigen fertigen Gegenstand (Brillengestell) niederzuschlagen, so daß auch angelötete Teile (Gelenkstutzen) die gleiche Schutz- und Farbtönung erhalten.The invention is now based on the object of a gold alloy layer with adjustable color shade durable electroplated on the otherwise finished item Knock down (glasses frame) so that soldered parts (joint sockets) receive the same protective and color tint.
Diese Aufgabe wird bei dem Verfahren der Erfindung dadurch gelöst, daß auf eine, an sich bekannte, auf dem Grundmetall liegende dünne Nickelschicht galvanisch erst eine Gold-Kupfer-, dann eine Gold-Nickelschicht niedergeschlagen wird, und die Schichtfolge dann bei einer Temperatur, die das Grundmetall nicht ausglüht, und die Lötstellen nicht löst (400 ° bis 510 °C) einer Diffusionsglühung unterworfen wird. Vor dem galvanischen Niederschlagen jeder der Schichten wird die Unterlage in bekannter Weise aktiviert, z. B. wie üblich, durch Beizen. Die Gold-Xtupfer-Schicht enthält erfindungsgemäß 25 Gew.-C/o Kupfer (18 karätig) und die Gold-Nickel-Schicht 10 bis 25 Gea;-% Nickel, wobei deren Dicke sowie die thermische Behandlungsdauer zur Erzielung der weils.gewünschten Farbtönung variiert wird.This object is achieved in the method of the invention in that that on a known, thin layer of nickel lying on the base metal first a gold-copper, then a gold-nickel layer is deposited galvanically is, and the layer sequence is then at a temperature that the base metal not anneals, and the soldering points do not dissolve (400 ° to 510 ° C) a diffusion anneal is subjected. Before electroplating each of the layers, the Pad activated in a known manner, e.g. B. as usual, by pickling. The gold swab layer According to the invention contains 25% by weight copper (18 carat) and the gold-nickel layer 10 to 25 Gea; -% nickel, the thickness and the duration of the thermal treatment is varied to achieve the desired color shade.
Ausführungsbeispiel: Ein mit allen Lötteilen versehenes Brillengestell aus. Neusilber beliebiger Gestaltung wird nach Aktivierung der Oberfläche galvanisch mit einer Nickelschicht von etwa 0,5 bis 5/u Dicke versehen und - nach Aktivierung dieser Nickelschicht - mit einer Gold-Kupfer-Schicht von 2 bis 15 /u Dicke; diese Schicht enthält 25 Gew.-% Kupfer. Nach Aktivierung auch dieser Schicht wird das Brillengestell galvanisch mit einer Gold-Nickel-Schicht von 0,5 bis 5 /u Dicke versehen. Die Schicht enthält 10 bis 15 Gew.-% Nickel. Das Brillengestell wird nun in Schutzgasatmosphäre mindestens eine halbe Stunde zwischen 400 ° bis 510 °C thermisch behandelt. Das fertige Brillengestell zeigt dann den erwünschten fleisckhfarbenen Ton in blaßrosé. Durch das Sindiffundieren von Goldteilchen aus der oberen in die darunterliegende Schicht wird die Oberfläche infolge des zurüc 'kbleibenden Nickels, durch die sich bildende dünne und transparente Nickeloydschicht weitgehend anlauSbeständig.Exemplary embodiment: A glasses frame provided with all soldered parts the end. Nickel silver of any design is electroplated after the surface has been activated provided with a nickel layer of about 0.5 to 5 / u thickness and - after activation this nickel layer - with a gold-copper layer 2 to 15 / u thick; these Layer contains 25 wt .-% copper. After activating this layer too, this will be The spectacle frame is galvanically provided with a gold-nickel layer of 0.5 to 5 / u thickness. The layer contains 10 to 15% by weight of nickel. The glasses frame is now in a protective gas atmosphere Thermally treated for at least half an hour between 400 ° and 510 ° C. That The finished spectacle frame then shows the desired fleisckh-colored shade in pale pink. Through the diffusion of gold particles from the top into the one below Layer becomes the surface as a result of the remaining nickel, through which forming thin and transparent nickel oxide layer largely resistant to tarnishing.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2256641A DE2256641A1 (en) | 1972-11-18 | 1972-11-18 | Gold plating spectacle frames - by two-stage electro-plating process follo-wed by diffusion annealing treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2256641A DE2256641A1 (en) | 1972-11-18 | 1972-11-18 | Gold plating spectacle frames - by two-stage electro-plating process follo-wed by diffusion annealing treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2256641A1 true DE2256641A1 (en) | 1974-05-22 |
Family
ID=5862099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2256641A Pending DE2256641A1 (en) | 1972-11-18 | 1972-11-18 | Gold plating spectacle frames - by two-stage electro-plating process follo-wed by diffusion annealing treatment |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2256641A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2482630A1 (en) * | 1980-05-15 | 1981-11-20 | Chugai Electric Ind Co Ltd | PROCESS FOR SELECTIVELY APPLYING PRECIOUS METAL DECORATIVE ALLOY TO AUSTENITIC STAINLESS STEEL ARTICLE |
| FR2551092A1 (en) * | 1983-03-25 | 1985-03-01 | Chugai Electric Ind Co Ltd | METHOD FOR DIFFUSION COATING OF IRON-CONTAINING BASE MATERIAL FOR DECORATIVE AND ORNAMENTAL OBJECTS WITH PRECIOUS METAL COMPONENTS COMPRISING SILVER, AND DECORATIVE AND ORNAMENT OBJECTS OBTAINED BY THIS PROCESS |
-
1972
- 1972-11-18 DE DE2256641A patent/DE2256641A1/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2482630A1 (en) * | 1980-05-15 | 1981-11-20 | Chugai Electric Ind Co Ltd | PROCESS FOR SELECTIVELY APPLYING PRECIOUS METAL DECORATIVE ALLOY TO AUSTENITIC STAINLESS STEEL ARTICLE |
| DE3117958A1 (en) * | 1980-05-15 | 1982-03-18 | Chugai Denki Kogyo K.K., Tokyo | METHOD FOR SELECTIVELY CONNECTING DECORATIVE PRECIOUS METAL ALLOYS TO ITEMS OF STAINLESS STEEL AUSTENITIC STEEL |
| FR2551092A1 (en) * | 1983-03-25 | 1985-03-01 | Chugai Electric Ind Co Ltd | METHOD FOR DIFFUSION COATING OF IRON-CONTAINING BASE MATERIAL FOR DECORATIVE AND ORNAMENTAL OBJECTS WITH PRECIOUS METAL COMPONENTS COMPRISING SILVER, AND DECORATIVE AND ORNAMENT OBJECTS OBTAINED BY THIS PROCESS |
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