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US 11,762,338 B2Granted
Non-magnetic watch component with improved wear resistance
AssigneeNivarox-FAR S.A.
InventorChristian Charbon
Life of this patent
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Abstract
A non-magnetic watch component (1) comprising a substrate (4) made of a copper alloy, wherein at least one part of the substrate (4) has a surface layer (5) including CuxTiy intermetallics, and a method for manufacturing this watch component.
Claims16
A non-magnetic watch component (1) comprising a substrate (4) made of a copper alloy, wherein at least one part of the substrate (4) comprises a surface layer (5) including CuxTiy intermetallics,
- wherein the surface layer (5) has on the outer surface thereof a residual layer of titanium,
- wherein the residual titanium layer has a thickness of between 1 nm and 5 μm, and
- wherein the component is chosen from the group including a pallet plate, a wheel plate, a gear train, an arbor, a pallet staff and a pinion.
A non-magnetic watch component (1) comprising a substrate (4) made of a copper alloy, wherein at least one part of the substrate (4) comprises a surface layer (5) including CuxTiy intermetallics,
- wherein the surface layer (5) has on the outer surface thereof a residual layer of titanium,
- wherein the residual titanium layer has a thickness of between 1 nm and 5 μm, and
- wherein the component consists of a pivot arbor, a part being a pivot (3), a screw, a winding stem or a balance spring stud.
Dependencies are inferred from the claim text.