• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a timepiece component comprising a core made of electroformed material, which core is at least locally covered with a layer of gold or gold alloy to improve its tribological behavior in the zones comprising this layer. According to the invention this component is made by a manufacturing method which comprises the steps of: preparing a composition capable of implementing a solid component by electroforming, for example by a LIGA process; to shape this massive component by electroforming, for example by a LIGA process; cover, at least locally in areas subject to friction, this massive component by a layer of gold or gold alloy.
    公开号:CH711835B1
    申请号:CH01692/15
    申请日:2015-11-20
    公开日:2019-07-15
    发明作者:Charbon Christian
    申请人:Nivarox Sa；
    IPC主号:
    专利说明:

    Description
    Field of the Invention [0001] The invention relates to a timepiece component.
    The invention also relates to a method of manufacturing a watch component.
    The invention relates to the field of watch mechanisms, in particular exhaust mechanisms.
    BACKGROUND OF THE INVENTION [0004] The lubrication of watch mechanisms is always difficult to ensure, and to maintain over time. The alteration of the original lubrication usually requires watch users to return them regularly for maintenance. SUMMARY OF THE INVENTION [0005] The invention proposes to improve the tribological behavior of certain components of watch mechanisms, in particular of escape mechanisms.
    For this purpose, the invention relates to a timepiece component according to claim 1.
    The invention also relates to a method of manufacturing a timepiece component according to claim 11.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0008] The invention relates to a timepiece component with improved tribology.
    According to the invention, this component comprises a core of electroformed material, which core is, at least locally, covered with a layer of gold or gold alloy, to improve its tribological behavior in areas comprising the layer of gold or gold alloy.
    More particularly, the electroformed material comprises nickel.
    More particularly, the electroformed material comprises cobalt.
    More particularly, the electroformed material comprises tungsten.
    More particularly, the electroformed material comprises NiP nickel-phosphorus.
    More particularly, the electroformed material comprises 8 to 15% by weight of nickel-phosphorus NiP.
    More particularly, the core consists of a single material.
    More particularly, the core is the result of a development by a process "LIGA". (From German: "Lithography, Galvanik und Abformung") [0017] More particularly, the layer of gold or gold alloy is a flash of thickness less than or equal to 1.0 micrometer.
    More particularly, the component is an exhaust mechanism component, among the usual exhaust components: balance wheel, escape wheel, exhaust pinion, anchor, ellipse.
    The invention also relates to a method for manufacturing a timepiece component, which comprises the steps of: - preparing a material composition capable of implementing a massive component by electroforming, for example by a LIGA process; - Shape the solid component by electroforming, for example by a LIGA process; - Cover, at least locally in areas subject to friction, the solid component by a layer of gold or gold alloy.
    More particularly, the cover of the solid component by a layer of gold or gold alloy is performed on the entire surface thereof.
    More particularly, the coverage of the solid component by a layer of gold or gold alloy is performed by galvanic technique and / or by PVD coating of English: "Physical vapor deposition".
    More particularly, after forming the massive component, and before or after the coverage of the solid component by a layer of gold or gold alloy, it is carried out a heat treatment step of this massive component .
    More particularly, the coverage of the solid component by a layer of gold or gold alloy is performed in the form of a flash with a thickness less than or equal to 1.0 micrometer.
    More particularly, the heat treatment is carried out at a temperature between 200 ° C and 600 ° C for a period of 1 to 6 hours.
    More particularly, the heat treatment is a surface hardening heat treatment of the solid component.
    More particularly, the composition is prepared with a nickel base.
    More particularly, the composition is prepared with 8 to 15% by weight of nickel-phosphorus NiP.
    More particularly, the composition comprises cobalt and / or tungsten.
    More particularly, the composition is prepared with only nickel-phosphorus NiP.
    More particularly, the component is an exhaust mechanism component, selected from balance wheel, escape wheel, exhaust pinion, anchor, ellipse.
    权利要求:
    Claims (22)
    [1]
    1. watch component, characterized in that it comprises a core of electroformed material, which core is, at least locally covered with a layer of gold or gold alloy, to improve its tribological behavior in areas comprising said layer of gold or gold alloy.
    [2]
    2. Component according to claim 1, characterized in that said electroformed material comprises nickel.
    [3]
    3. Component according to claim 1 or 2, characterized in that said electroformed material comprises cobalt.
    [4]
    4. Component according to one of claims 1 to 3, characterized in that said electroformed material comprises tungsten.
    [5]
    5. Component according to one of claims 1 to 4, characterized in that said electroformed material comprises NiP nickel-phosphorus.
    [6]
    6. Component according to claim 5, characterized in that said electroformed material comprises 8 to 15% by weight of NiP nickel-phosphorus.
    [7]
    7. Component according to one of claims 1 to 5, characterized in that said core consists of a single material.
    [8]
    8. Component according to one of claims 1 to 7, characterized in that said core is the result of a development by a LIGA process.
    [9]
    9. Component according to one of claims 1 to 8, characterized in that said layer of gold or gold alloy is a flash of thickness less than or equal to 1.0 micrometer.
    [10]
    10. Component according to one of claims 1 to 9, characterized in that said component is an exhaust mechanism component, among balance wheel, escape wheel, escape gear, anchor, ellipse.
    [11]
    11. A method of manufacturing a timepiece component, characterized in that said method comprises the steps of: - preparing a material composition capable of implementing a solid component by electroforming, for example by a method LIGA; - Formatting said solid component by electroforming, for example by a LIGA process; - Cover, at least locally in areas subject to friction, said solid component by a layer of gold or gold alloy.
    [12]
    12. The method of claim 11, characterized in that the cover of said solid component by a layer of gold or gold alloy is performed on its entire surface.
    [13]
    13. The method of claim 11 or 12, characterized in that the cover of said solid component by a layer of gold or gold alloy is performed by galvanic technique and / or by PVD coating.
    [14]
    14. Method according to one of claims 11 to 13, characterized in that, after said shaping of said solid component, and before or after the coverage of said solid component by a layer of gold or gold alloy, a heat treatment step is performed on said solid component.
    [15]
    15. Method according to one of claims 11 to 14, characterized in that the cover of said solid component by a layer of gold or gold alloy is performed in the form of a flash with a thickness less than or equal to at 1.0 micrometer.
    [16]
    16. The method of claim 14, characterized in that said heat treatment is carried out at a temperature between 200 ° C and 600 ° C for a period of 1 to 6 hours.
    [17]
    17. The method of claim 14 or 16, characterized in that said heat treatment is a surface hardening heat treatment of said solid component.
    [18]
    18. Method according to one of claims 11 to 17, characterized in that said composition is prepared with a nickel base.
    [19]
    19. The method of claim 18, characterized in that said composition is prepared with 8 to 15% by weight of nickel-phosphorus NiP.
    [20]
    20. The method of claim 18 or 19, characterized in that said composition comprises cobalt and / or tungsten.
    [21]
    21. The method of claim 18, characterized in that said composition is prepared with only nickel-phosphorus NiP.
    [22]
    22. Method according to one of claims 11 to 21, characterized in that said component is an exhaust mechanism component, selected from balance wheel, escape wheel, escape gear, anchor, ellipse.
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    同族专利:
    公开号 | 公开日
    CH711835A2|2017-05-31|
    CN106896694A|2017-06-27|
    US20170146954A1|2017-05-25|
    JP6353002B2|2018-07-04|
    RU2016145348A|2018-05-20|
    EP3171229A1|2017-05-24|
    JP2017096925A|2017-06-01|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP15195348.6A|EP3171229A1|2015-11-19|2015-11-19|Clock component|
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