CH332199A - Method of manufacturing a part of a timepiece and part obtained by this process - Google Patents
Method of manufacturing a part of a timepiece and part obtained by this processInfo
- Publication number
- CH332199A CH332199A CH332199DA CH332199A CH 332199 A CH332199 A CH 332199A CH 332199D A CH332199D A CH 332199DA CH 332199 A CH332199 A CH 332199A
- Authority
- CH
- Switzerland
- Prior art keywords
- timepiece
- manufacturing
- layer
- plate
- mechanically
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
- G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
- G04D3/0043—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms
- G04D3/0048—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms for dials
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/005—Jewels; Clockworks; Coins
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
- G04D3/0069—Watchmakers' or watch-repairers' machines or tools for working materials for working with non-mechanical means, e.g. chemical, electrochemical, metallising, vapourising; with electron beams, laser beams
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Description
Procédé de fabrication d'une partie de pièce d'horlogerie et partie obtenue par ce procédé La présente invention concerne un procédé de fabrication d'une partie de pièce d'horloge rie telle que pont, platine, cadran, etc., et la partie obtenue par ce procédé.
Le procédé est caractérisé par le fait que, sur cette partie, on dépose, par voie électro lytique, une couche de métal, enlève mécani quement cette couche par endroits et sur toute son épaisseur, puis plonge la partie dans un bain dit de déplacement, de façon qu'un autre métal que celui de la couche et de la partie se dépose en lieu et place de la matière en levée mécaniquement.
Le dessin ci-annexé illustre un exemple de mise en aeuvre du procédé susmentionné ap pliqué à un cadran, les fig. 1 à 6 concernant différentes phases de cet exemple.
On part d'une plaque de cadran 1 (voir fig. 1 et 2), en cuivre ou en un alliage à base de cuivre. On recouvre la face supérieure de cette plaque par voie électrolytique d'une cou che 2, par exemple de nickel, dont l'épaisseur a été fortement exagérée au dessin. Puis on enlève mécaniquement le dépôt de nickel aux endroits où doivent se trouver les signes ho raires, créant ainsi des vides 3. Après quoi, la plaque est plongée dans un bain, dit de dé placement, et formé, par exemple, d'un mé lange de sels d'or, de phosphate de sodium, de cyanure de potassium et d'eau distillée.
Ainsi qu'il est bien connu, une partie du cui- vre formant le fond des vides 3 se dissout dans le bain et est remplacée par une pelli cule d'or 4, provenant de la décomposition des sels d'or susmentionnés. On obtient ainsi (voir fig. 5 et 6) un cadran nickelé dans lequel les signes horaires sont dorés.
D'autres métaux que le nickel et l'or pour raient être employés. On pourrait aussi laisser le dépôt de nickel aux endroits où doivent se trouver les signes horaires et l'enlever méca niquement sur le reste de la plaque.
Enfin, on pourrait aussi décorer de cetté façon par exemple la platine, les ponts, la masse du remontoir automatique, etc.
Method of manufacturing a part of a timepiece and part obtained by this method The present invention relates to a method of manufacturing a part of a clock part such as a bridge, plate, dial, etc., and the part obtained by this process.
The process is characterized by the fact that, on this part, a layer of metal is deposited electrolytically, this layer is mechanically removed in places and over its entire thickness, then the part is immersed in a so-called displacement bath, so that a metal other than that of the layer and of the part is deposited instead of the material being lifted mechanically.
The accompanying drawing illustrates an exemplary implementation of the aforementioned method applied to a dial, FIGS. 1 to 6 relating to different phases of this example.
We start with a dial plate 1 (see fig. 1 and 2), made of copper or a copper-based alloy. The upper face of this plate is covered electrolytically with a layer 2, for example of nickel, the thickness of which has been greatly exaggerated in the drawing. Then the nickel deposit is mechanically removed at the places where the hourly signs must be found, thus creating voids 3. After which, the plate is immersed in a bath, said to be displaced, and formed, for example, of a mixture of gold salts, sodium phosphate, potassium cyanide and distilled water.
As is well known, part of the copper forming the bottom of the voids 3 dissolves in the bath and is replaced by a gold film 4, resulting from the decomposition of the above-mentioned gold salts. We thus obtain (see fig. 5 and 6) a nickel-plated dial in which the hour signs are gilded.
Metals other than nickel and gold could be used. We could also leave the nickel deposit where the hour signs should be and remove it mechanically from the rest of the plate.
Finally, we could also decorate this way for example the plate, the bridges, the mass of the automatic winder, etc.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH332199T | 1956-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH332199A true CH332199A (en) | 1958-08-31 |
Family
ID=4502341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH332199D CH332199A (en) | 1956-08-30 | 1956-08-30 | Method of manufacturing a part of a timepiece and part obtained by this process |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH332199A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH658968GA3 (en) * | 1984-10-26 | 1986-12-31 | Method for producing a metal insert in an object, especially a gold insert in a watch body or a watchstrap made of stainless steel | |
EP0405006A2 (en) * | 1989-06-30 | 1991-01-02 | Peter Birkenmeier | Process for manufacture of decorative surfaces |
EP1071000A1 (en) * | 1999-07-23 | 2001-01-24 | Damian Rickenbach | Method for shaping surfaces of parts of watch |
-
1956
- 1956-08-30 CH CH332199D patent/CH332199A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH658968GA3 (en) * | 1984-10-26 | 1986-12-31 | Method for producing a metal insert in an object, especially a gold insert in a watch body or a watchstrap made of stainless steel | |
EP0405006A2 (en) * | 1989-06-30 | 1991-01-02 | Peter Birkenmeier | Process for manufacture of decorative surfaces |
EP0405006A3 (en) * | 1989-06-30 | 1991-08-21 | Peter Birkenmeier | Process for manufacture of decorative surfaces |
EP1071000A1 (en) * | 1999-07-23 | 2001-01-24 | Damian Rickenbach | Method for shaping surfaces of parts of watch |
EP1070999A1 (en) * | 1999-07-23 | 2001-01-24 | Damian Rickenbach | Method for shaping the surface of clockwork pieces |
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