Component for a timepiece movement
AssigneeNivarox-FAR S.A.
InventorsChristian Charbon, Vincent Fays, Marco Verardo
Life of this patent
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Abstract
The invention relates to a timepiece component (1) comprising at least one portion (3) machined by chip removal. Said portion (3) is made of a non-magnetic copper alloy in order to limit its sensitivity to magnetic fields, said copper alloy containing between 10 wt % and 20 wt % of Ni, between 6 wt % and 12 wt % of Sn, X wt % of additional elements, wherein X is comprised between 0 and 5, and the remainder is Cu. The invention concerns the field of timepiece movements.
Claims21
A timepiece component comprising at least one portion machined by chip removal, wherein said portion is made of a non-magnetic copper alloy in order to limit the sensitivity thereof to magnetic fields, said copper alloy containing between 10 wt % and 20 wt % of Ni, between 6 wt % and 12 wt % of Sn, X wt % of additional elements, wherein X is comprised between 0 and 5, and the remainder is Cu,
- wherein the component consists of a pivot arbor, the portion machined by chip removal being at least a pivot,
- wherein at least the portion machined by chip removal comprises a hardening layer deposited on an outer surface of said portion, and the hardening layer is a layer of TiN, diamond, DLC, Al2O3, CR, or NiP.
Dependencies are inferred from the claim text.