EP3098670B1 - Internal clock covering component - Google Patents

Internal clock covering component Download PDF

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Publication number
EP3098670B1
EP3098670B1 EP15169387.6A EP15169387A EP3098670B1 EP 3098670 B1 EP3098670 B1 EP 3098670B1 EP 15169387 A EP15169387 A EP 15169387A EP 3098670 B1 EP3098670 B1 EP 3098670B1
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EP
European Patent Office
Prior art keywords
mass
proportion
nickel
equal
alloy
Prior art date
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Application number
EP15169387.6A
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German (de)
French (fr)
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EP3098670A1 (en
Inventor
Christian Charbon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox SA
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to EP15169387.6A priority Critical patent/EP3098670B1/en
Priority to US15/141,025 priority patent/US20160349704A1/en
Priority to JP2016093146A priority patent/JP6175160B2/en
Priority to CN201610353994.4A priority patent/CN106191520B/en
Publication of EP3098670A1 publication Critical patent/EP3098670A1/en
Application granted granted Critical
Publication of EP3098670B1 publication Critical patent/EP3098670B1/en
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/12—Selection of materials for dials or graduations markings
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/002—Alloys based on nickel or cobalt with copper as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/01—Alloys based on copper with aluminium as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/04—Hands; Discs with a single mark or the like
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • G04B19/103—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial attached or inlaid numbers
    • 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

Definitions

  • the invention relates to the use of a single-phase alloy having a face-centered cubic structure comprising at least copper and nickel, and comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, for the realization of an internal clocks component of watchmaking.
  • the invention also relates to an internal cladding component of watchmaking, made entirely in a single-phase alloy having a face-centered cubic structure comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, said component being free of any coating.
  • the invention also relates to a method of manufacturing an internal cladding component of watchmaking shape and dimensions determined, which is equipped with a raw material sheet or strip or bar, single-phase alloy with cubic structure centered faces comprising at least copper and comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total.
  • the invention relates to the field of interior trim components for timepieces, especially for watches.
  • clockwork components require a lot of attention, these components being very visible, and conditioning the brand image of the manufacturer and its positioning on the market.
  • the outer cladding components are necessarily made of stable materials, stainless, and guaranteeing a low nickel release due to contact with the skin of users, the internal trim components, locked in the timepiece but visible through an ice, allow the use of more diverse materials.
  • known internal cladding components including wall lights, made of rhodium-plated brass. Their appearance is very satisfactory, provided to protect very carefully these components during handling and assembly, because of the fragility of the coating which is generally from a galvanic treatment, this galvanic deposit accentuating any defect prior to treatment.
  • the document FR 1049188 in the name of Straumann describes parts for timepieces made of hardenable alloy, with an overall nickel and manganese content of at least 50%, the rest being copper and usual impurities. Several examples also mention an overall copper and nickel content of at least 50%.
  • the invention relates to the use of a single-phase alloy having a face-centered cubic structure comprising at least copper and nickel, and comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total, for the realization of an internal clocks component clock.
  • the invention also relates to an internal cladding component for watches, made entirely in a single-phase, face-centered, cubic structure alloy comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, according to claim 5. .
  • the invention also relates to a method of manufacturing an internal cladding component of a watchmaker shape and dimensions determined according to claim 20.
  • internal clockwork component means any component of a watch or a timepiece, visible to the user, but not accessible directly because protected by an ice or a protective partition, bottom or the like.
  • an internal clockwork component may consist of an applique, a needle, a symbol, a kitten, or the like.
  • the invention relates to such an internal clockwork component 1.
  • the invention proposes to eliminate any galvanic treatment, and to make directly usable an internal cladding component clock in its state of repair. machining output.
  • machining covers here the usual methods of preparation: stamping, cutting, chip removal, grinding, lapping, polishing, diamonding, and the like.
  • the desired uniform color is most often gray, or gold: yellow gold, white gold, pink gold.
  • this component 1 is made integrally in a single-phase alloy having a face-centered cubic structure comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total.
  • this alloy comprises at least one tarnish-limiting element chosen from nickel, manganese, aluminum, tin, chromium, zirconium, or the like.
  • this component 1 is made integrally in a single-phase, face-centered, cubic structure alloy comprising at least copper and nickel, with, by weight, a total copper and nickel greater than or equal to 50.0% of the total, and with a mass proportion of nickel greater than or equal to 15,0% of the total.
  • the proportion by weight of nickel is greater than or equal to 19.0% of the total.
  • the mass proportion of copper in this alloy is greater than or equal to 50.0% of the total.
  • the mass proportion of nickel in this alloy is greater than or equal to 50.0% of the total.
  • the alloy selected is a cupronickel, comprising in mass between 19.0 and 30.0% of nickel, and comprising in mass from 0.0 to 2.0% of the total manganese or / and iron and / or chromium or / and zirconium or / and silicon, and a mass proportion of copper supplementing the total composition to 100%.
  • the alloy comprises in mass between 19.0 and 23.0% of nickel, and comprising in mass from 0.0 to 1.0% of the total zinc or / and manganese and / or iron, and a mass proportion of copper supplementing the total composition to 100%.
  • the alloy comprises, by weight, between 24.0 and 26.0% of nickel, and comprising, by weight, from 0.0 to 0.5% of the total zinc and / or manganese and / or iron, and a mass proportion of copper supplementing the total composition to 100%.
  • the alloy comprises, by weight, between 29.0 and 32.0% of nickel, and comprising, by weight, from 0.0 to 0.5% of the total zinc or / and manganese and / or iron, and a mass proportion of copper supplementing the total composition to 100%.
  • the alloy comprises, more particularly, between 0.5% and 5.0% of the total mass of tin to improve its resistance to tarnishing.
  • this alloy is a nickel silver, with a mass proportion of zinc greater than or equal to 8.0% of the total, with a proportion by weight of nickel greater than or equal to 20% of the total, and a proportion in mass of copper supplementing the total of the composition to 100%.
  • the alloy comprises, by weight, a proportion of zinc of at least 11.0% of the total.
  • the alloy comprises, by weight, a proportion of nickel of at least 25.0% of the total.
  • the alloy comprises, by weight, both a proportion of zinc of at least 11.0% of the total, and a proportion of nickel of at least 25.0% of the total.
  • the alloy is an "Arcap" comprising a mass of copper of at least 53.0% of the total, a proportion of nickel of at least 25.0% of the total, and proportion of zinc between 8.0 and 20.0% of the total.
  • the alloy is an "Arcap” type “Ap1D” having a mass ratio of copper of between 60.0 to 61.0% of the total, a nickel proportion of between 24.0 to 26.0% of the total, and a proportion of zinc ranging from 11.0 to 12.0% of the total.
  • the alloy is an "Arcap” type "Ap1D" having a mass proportion of copper of between 60.0 to 61.0% of the total, a nickel proportion of between 24.0 to 26.0% of the total, and a proportion of zinc ranging from 11.0 to 12.0% of the total, and from 0 to 2.5% of another element. More particularly, this other element is manganese.
  • this alloy is of CuNiMn type, that is to say a copper-nickel-manganese alloy, with a mass proportion of manganese of between 19.0 and 31.0% of the total.
  • this copper-nickel-manganese alloy has a mass proportion of nickel of between 19.0 and 31.0% of the total.
  • this alloy is of the "Monel®" type.
  • the alloy has a mass proportion of nickel greater than or equal to 63.0% of the total, a proportion of manganese less than or equal to 2.0% of the total, a proportion of iron less than or equal to 2.5% of the total, a silicon content less than or equal to 0,5% of the total, a carbon proportion of less than or equal to 0,3% of the total, a proportion of sulfur of not more than 0 , 02% of the total, a mass proportion of copper of between 28.0 and 34.0% of the total and such that the total of the composition is equal to 100%.
  • the alloy has a mass proportion of nickel greater than or equal to 63.0% of the total, a proportion of manganese less than or equal to 1.5% of the total, a proportion of iron less than or equal to 2.0% of the total, a silicon content less than or equal to 0.5% of the total, a carbon content of less than or equal to 0.25% of the total, a proportion of sulfur of not more than 0 , 01% of the total, a proportion by weight of aluminum of between 2.3 and 3.15% of the total, a mass proportion of titanium included between 0.35 and 0.75% of the total, a mass proportion of copper of between 27.0 and 33.0% of the total and such that the total of the composition is equal to 100%.
  • All the alloys selected above make it possible to obtain a uniform coloring, gray, compatible with many horological uses.
  • Gold and 5N gold alloys can also be used.
  • alloys that are well suited are the "Nordic gold” Cu89Al5Zn5Sn1, and the Cu92Al6Ni2 alloy, or other cupro-aluminum alloys. These alloys are also copper-based and single-phase, and the tarnish resistance and the yellow color are obtained by the addition of aluminum.
  • the invention also relates to a timepiece, including a watch 10, comprising at least one such component 1 dressing.
  • the invention also relates to the use of a single-phase, face-centered, cubic structure alloy comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, for producing an internal cladding component. watchmaking 1.
  • a single-phase, face-centered, cubic structure alloy comprising, at least copper and nickel, with, by mass, a total copper and nickel greater than or equal to 50.0% of the total, with a proportion by weight of nickel greater than or equal to 15.0% of the total, for the production of an internal clockwork component 1.
  • the proportion by weight of nickel is greater than or equal to 15.0% of the total.
  • This alloy may be one of the alloys described above. More particularly, for the production of an internal clockwork cladding component 1, an alloy is used which is either a copper nickel comprising in mass between 15.0 and 30.0% of nickel, and comprising 0 0 to 2.0% of manganese and / or iron and / or chromium and / or zirconium and / or silicon, or a nickel silver containing in mass at least 8.0% zinc.
  • the invention also relates to a method of manufacturing an internal cladding component of watchmaking 1 of defined shape and size, characterized in that it is equipped with a raw material sheet or strip or single-phase alloy bar with a face-centered cubic structure comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total, and in that a machining of said raw material is carried out in order to obtain an internal cladding component timepiece 1 with finished dimensions corresponding to said determined shape and dimensions.
  • said raw material in sheet or strip or bar is used in a single-phase, face-centered, cubic structure alloy comprising at least copper and nickel, with, by mass, a total copper and upper nickel or equal to 50.0% of the total, with a proportion by mass of nickel greater than or equal to 15.0% of the total.
  • the proportion by weight of nickel is greater than or equal to 15.0% of the total.
  • this machining is performed by stamping and / or cutting and / or stamping and / or chip removal, and performs a diamond of this inner cladding component 1 time finite dimensions.
  • this raw diamond component is used, and devoid of any galvanic treatment.
  • the alloy of the raw material is chosen to be a single-phase alloy having a face-centered cubic structure comprising at least copper and nickel, with, by mass, a total copper and nickel greater or equal to 50.0% of the total, with a proportion by mass of nickel greater than or equal to 15.0% of the total.
  • the proportion by weight of nickel is greater than or equal to 15.0% of the total.
  • the alloy of the raw material or a cupronickel comprising in mass between 15.0 and 30.0% of nickel, and comprising from 0.0 to 2.0% of manganese and / or of iron and / or chromium and / or zirconium or / and silicon, or a nickel silver comprising in mass at least 8.0% zinc.

Description

Domaine de l'inventionField of the invention

L'invention concerne l'utilisation d'un alliage monophasé à structure cubique faces centrées comportant au moins du cuivre et du nickel, et comportant, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, pour la réalisation d'un composant d'habillage interne d'horlogerie.The invention relates to the use of a single-phase alloy having a face-centered cubic structure comprising at least copper and nickel, and comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, for the realization of an internal clocks component of watchmaking.

L'invention concerne encore un composant d'habillage interne d'horlogerie, réalisé intégralement dans un alliage monophasé à structure cubique faces centrées comportant en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, ledit composant étant exempt de tout revêtement.The invention also relates to an internal cladding component of watchmaking, made entirely in a single-phase alloy having a face-centered cubic structure comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, said component being free of any coating.

L'invention concerne encore un procédé de fabrication d'un composant d'habillage interne d'horlogerie de forme et de dimensions déterminées, selon lequel on se munit d'un matériau brut en feuille ou bande ou barre, en alliage monophasé à structure cubique faces centrées comportant au moins du cuivre et comportant, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total.The invention also relates to a method of manufacturing an internal cladding component of watchmaking shape and dimensions determined, which is equipped with a raw material sheet or strip or bar, single-phase alloy with cubic structure centered faces comprising at least copper and comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total.

L'invention concerne le domaine des composants d'habillage intérieur pour pièces d'horlogerie, notamment pour montres.The invention relates to the field of interior trim components for timepieces, especially for watches.

Arrière-plan de l'inventionBackground of the invention

La fabrication de composants d'habillage d'horlogerie requiert beaucoup d'attention, ces composants étant très visibles, et conditionnant l'image de marque du fabricant et son positionnement sur le marché.The manufacture of clockwork components requires a lot of attention, these components being very visible, and conditioning the brand image of the manufacturer and its positioning on the market.

Si les composants d'habillage externe sont nécessairement réalisés en des matériaux stables, inoxydables, et garantissant un faible relargage de nickel en raison du contact avec la peau des utilisateurs, les composants d'habillage interne, enfermés dans la pièce d'horlogerie mais visibles au travers d'une glace, autorisent l'emploi de matériaux plus divers.
On connaît ainsi des composants d'habillage interne, notamment des appliques, réalisés en laiton rhodié. Leur aspect est très satisfaisant, à condition de protéger très soigneusement ces composants au cours de leur manipulation et de leur assemblage, en raison de la fragilité du revêtement qui est en général issu d'un traitement galvanique, ce dépôt galvanique accentuant tout défaut antérieur au traitement.If the outer cladding components are necessarily made of stable materials, stainless, and guaranteeing a low nickel release due to contact with the skin of users, the internal trim components, locked in the timepiece but visible through an ice, allow the use of more diverse materials.
Thus known internal cladding components, including wall lights, made of rhodium-plated brass. Their appearance is very satisfactory, provided to protect very carefully these components during handling and assembly, because of the fragility of the coating which is generally from a galvanic treatment, this galvanic deposit accentuating any defect prior to treatment.

Le document FR 1049188 au nom de Straumann décrit des pièces pour appareils d'horlogerie réalisées en alliage durcissable, avec une teneur globale en nickel et manganèse d'au moins 50%, le reste étant constitué par du cuivre et des impuretés habituelles. Plusieurs exemples mentionnent aussi une teneur globale en cuivre et nickel d'au moins 50%.The document FR 1049188 in the name of Straumann describes parts for timepieces made of hardenable alloy, with an overall nickel and manganese content of at least 50%, the rest being copper and usual impurities. Several examples also mention an overall copper and nickel content of at least 50%.

Résumé de l'inventionSummary of the invention

A cet effet, l'invention concerne l'utilisation d'un alliage monophasé à structure cubique faces centrées comportant au moins du cuivre et du nickel, et comportant, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, pour la réalisation d'un composant d'habillage interne d'horlogerie.For this purpose, the invention relates to the use of a single-phase alloy having a face-centered cubic structure comprising at least copper and nickel, and comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total, for the realization of an internal clocks component clock.

L'invention concerne encore un composant d'habillage interne d'horlogerie, réalisé intégralement dans un alliage monophasé à structure cubique faces centrées comportant en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, selon la revendication 5.The invention also relates to an internal cladding component for watches, made entirely in a single-phase, face-centered, cubic structure alloy comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, according to claim 5. .

L'invention concerne encore un procédé de fabrication d'un composant d'habillage interne d'horlogerie de forme et de dimensions déterminées, selon la revendication 20.The invention also relates to a method of manufacturing an internal cladding component of a watchmaker shape and dimensions determined according to claim 20.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • les figures 1 à 4 représentent, de façon schématisée, respectivement en perspective de dessus, en perspective de dessous, en vue de dessus et en coupe longitudinale, un composant d'habillage interne d'horlogerie selon l'invention, dans le cas particulier d'une applique ;
  • la figure 5 représente, de façon schématisée, une montre comportant de telles appliques.
Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the Figures 1 to 4 are schematically represented, respectively in perspective from above, in perspective from below, in plan view and in longitudinal section, an inner cladding component of timepiece according to the invention, in the particular case of a wall;
  • the figure 5 represents, schematically, a watch comprising such appliques.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

On entend ici par « composant d'habillage interne d'horlogerie » tout composant d'habillage d'une montre ou d'une pièce d'horlogerie, visible par l'utilisateur, mais non accessible directement, car protégé par une glace ou une cloison de protection, fond ou similaire.Here, the term "internal clockwork component" means any component of a watch or a timepiece, visible to the user, but not accessible directly because protected by an ice or a protective partition, bottom or the like.

Plus particulièrement, un composant d'habillage interne d'horlogerie peut consister en une applique, une aiguille, un symbole, un chaton, ou similaire.More particularly, an internal clockwork component may consist of an applique, a needle, a symbol, a kitten, or the like.

L'invention concerne un tel composant d'habillage interne d'horlogerie 1.The invention relates to such an internal clockwork component 1.

Pour s'affranchir des problèmes d'état de surface connu pour les composants comportant un traitement galvanique, l'invention se propose d'éliminer tout traitement galvanique, et de rendre directement utilisable un composant d'habillage interne d'horlogerie dans son état de sortie d'usinage.To overcome known surface state problems for components comprising a galvanic treatment, the invention proposes to eliminate any galvanic treatment, and to make directly usable an internal cladding component clock in its state of repair. machining output.

Le mot « usinage » recouvre ici les modes d'élaboration usuels : étampage, découpage, enlèvement de copeaux, rectification, rodage, polissage, diamantage, et similaires.The word "machining" covers here the usual methods of preparation: stamping, cutting, chip removal, grinding, lapping, polishing, diamonding, and the like.

Il s'agit donc de réaliser de tels composants dans un matériau qui soit usinable, étampable, découpable, ductile (en particulier pour la frappe des pieds dans le cas d'un usinage à partir de bande), diamantable, présentant une coloration uniforme, et surtout résistant au ternissement et très stables dans le temps.It is therefore a question of producing such components in a material that is machinable, stampable, cuttable, ductile (in particular for striking the feet in the case of machining from tape), diamondable, having a uniform coloring, and especially resistant to tarnishing and very stable over time.

La coloration uniforme désirée est le plus souvent grise, ou or : or jaune, or blanc, or rose.The desired uniform color is most often gray, or gold: yellow gold, white gold, pink gold.

Selon l'invention, ce composant 1 est réalisé intégralement dans un alliage monophasé à structure cubique faces centrées comportant en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total.According to the invention, this component 1 is made integrally in a single-phase alloy having a face-centered cubic structure comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total.

Et ce composant 1 est exempt de tout revêtement.And this component 1 is free of any coating.

Dans une exécution particulière avantageuse, cet alliage comporte au moins un élément limitant le ternissement, choisi parmi le nickel, le manganèse, l'aluminium, l'étain, le chrome, le zirconium, ou similaire.In a particular advantageous embodiment, this alloy comprises at least one tarnish-limiting element chosen from nickel, manganese, aluminum, tin, chromium, zirconium, or the like.

Plus particulièrement, ce composant 1 est réalisé intégralement dans un alliage monophasé à structure cubique faces centrées, comportant au moins du cuivre et du nickel, avec, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, et avec une proportion en masse de nickel supérieure ou égale à 15,0% du total.More particularly, this component 1 is made integrally in a single-phase, face-centered, cubic structure alloy comprising at least copper and nickel, with, by weight, a total copper and nickel greater than or equal to 50.0% of the total, and with a mass proportion of nickel greater than or equal to 15,0% of the total.

Plus particulièrement, la proportion en masse de nickel est supérieure ou égale à 19,0% du total.More particularly, the proportion by weight of nickel is greater than or equal to 19.0% of the total.

Dans une alternative, la proportion en masse du cuivre dans cet alliage est supérieure ou égale à 50,0% du total.In an alternative, the mass proportion of copper in this alloy is greater than or equal to 50.0% of the total.

Dans une autre alternative, la proportion en masse du nickel dans cet alliage est supérieure ou égale à 50,0% du total.In another alternative, the mass proportion of nickel in this alloy is greater than or equal to 50.0% of the total.

Plus particulièrement, dans un premier mode de réalisation, l'alliage sélectionné est un cupronickel, comportant en masse entre 19,0 et 30,0% de nickel, et comportant en masse de 0,0 à 2,0% du total en manganèse ou/et en fer ou/et en chrome ou/et en zirconium ou/et en silicium, et une proportion en masse de cuivre complétant le total de la composition à 100%.More particularly, in a first embodiment, the alloy selected is a cupronickel, comprising in mass between 19.0 and 30.0% of nickel, and comprising in mass from 0.0 to 2.0% of the total manganese or / and iron and / or chromium or / and zirconium or / and silicon, and a mass proportion of copper supplementing the total composition to 100%.

Dans une première variante de cupronickel, l'alliage comporte en masse entre 19,0 et 23,0% de nickel, et comportant en masse de 0,0 à 1,0% du total en zinc ou/et en manganèse ou/et en fer, et une proportion en masse de cuivre complétant le total de la composition à 100%.In a first variant of cupronickel, the alloy comprises in mass between 19.0 and 23.0% of nickel, and comprising in mass from 0.0 to 1.0% of the total zinc or / and manganese and / or iron, and a mass proportion of copper supplementing the total composition to 100%.

Dans une deuxième variante de cupronickel, de type CuNi25, l'alliage comporte en masse entre 24,0 et 26,0% de nickel, et comportant en masse de 0,0 à 0,5% du total en zinc ou/et en manganèse ou/et en fer, et une proportion en masse de cuivre complétant le total de la composition à 100%.In a second variant of cupronickel, of the CuNi25 type, the alloy comprises, by weight, between 24.0 and 26.0% of nickel, and comprising, by weight, from 0.0 to 0.5% of the total zinc and / or manganese and / or iron, and a mass proportion of copper supplementing the total composition to 100%.

Dans une troisième variante de cupronickel, de type CuNi30, l'alliage comporte en masse entre 29,0 et 32,0% de nickel, et comportant en masse de 0,0 à 0,5% du total en zinc ou/et en manganèse ou/et en fer, et une proportion en masse de cuivre complétant le total de la composition à 100%.In a third variant of cupronickel, of the CuNi30 type, the alloy comprises, by weight, between 29.0 and 32.0% of nickel, and comprising, by weight, from 0.0 to 0.5% of the total zinc or / and manganese and / or iron, and a mass proportion of copper supplementing the total composition to 100%.

Dans une de ces variantes de cupronickel, l'alliage comporte, plus particulièrement, entre 0,5% et 5.0% du total en masse d'étain pour améliorer sa résistance au ternissement.In one of these variants of cupronickel, the alloy comprises, more particularly, between 0.5% and 5.0% of the total mass of tin to improve its resistance to tarnishing.

Dans un deuxième mode de réalisation, cet alliage est un maillechort, avec une proportion en masse de zinc supérieure ou égale à 8,0% du total, avec une proportion en masse de nickel supérieure ou égale à 20% du total, et une proportion en masse de cuivre complétant le total de la composition à 100%..In a second embodiment, this alloy is a nickel silver, with a mass proportion of zinc greater than or equal to 8.0% of the total, with a proportion by weight of nickel greater than or equal to 20% of the total, and a proportion in mass of copper supplementing the total of the composition to 100%.

Dans une première variante de maillechort, l'alliage comporte, en masse, une proportion de zinc d'au moins 11,0% du total.In a first variant of nickel silver, the alloy comprises, by weight, a proportion of zinc of at least 11.0% of the total.

Dans une deuxième variante de maillechort, l'alliage comporte, en masse, une proportion de nickel d'au moins 25,0% du total.In a second variant of nickel silver, the alloy comprises, by weight, a proportion of nickel of at least 25.0% of the total.

Dans une troisième variante de maillechort, l'alliage comporte, en masse, à la fois une proportion de zinc d'au moins 11,0% du total, et une proportion de nickel d'au moins 25,0% du total.In a third variant of nickel silver, the alloy comprises, by weight, both a proportion of zinc of at least 11.0% of the total, and a proportion of nickel of at least 25.0% of the total.

Dans une quatrième variante de maillechort, l'alliage est un « Arcap » comportant en masse une proportion de cuivre d'au moins 53,0% du total, une proportion de nickel d'au moins 25,0% du total, et une proportion de zinc comprise entre 8,0 à 20,0% du total.In a fourth variant of nickel silver, the alloy is an "Arcap" comprising a mass of copper of at least 53.0% of the total, a proportion of nickel of at least 25.0% of the total, and proportion of zinc between 8.0 and 20.0% of the total.

Dans une cinquième variante de maillechort, l'alliage est un « Arcap » de type « Ap1D » comportant en masse une proportion de cuivre comprise entre 60,0 à 61,0% du total, une proportion de nickel comprise entre 24,0 à 26,0% du total, et une proportion de zinc comprise entre 11,0 à 12,0% du total.In a fifth variant of nickel silver, the alloy is an "Arcap" type "Ap1D" having a mass ratio of copper of between 60.0 to 61.0% of the total, a nickel proportion of between 24.0 to 26.0% of the total, and a proportion of zinc ranging from 11.0 to 12.0% of the total.

Dans une sixième variante de maillechort, l'alliage est un « Arcap » de type « Ap1D » comportant en masse une proportion de cuivre comprise entre 60,0 à 61,0% du total, une proportion de nickel comprise entre 24,0 à 26,0% du total, et une proportion de zinc comprise entre 11,0 à 12,0% du total, et de 0 à 2,5% d'un autre élément. Plus particulièrement, cet autre élément est du manganèse.In a sixth variant of nickel silver, the alloy is an "Arcap" type "Ap1D" having a mass proportion of copper of between 60.0 to 61.0% of the total, a nickel proportion of between 24.0 to 26.0% of the total, and a proportion of zinc ranging from 11.0 to 12.0% of the total, and from 0 to 2.5% of another element. More particularly, this other element is manganese.

Dans un troisième mode de réalisation, cet alliage est de type CuNiMn, c'est-à-dire un alliage cuivre-nickel-manganèse, avec une proportion en masse de manganèse comprise entre 19,0 et 31,0% du total.In a third embodiment, this alloy is of CuNiMn type, that is to say a copper-nickel-manganese alloy, with a mass proportion of manganese of between 19.0 and 31.0% of the total.

Plus particulièrement, cet alliage cuivre-nickel-manganèse comporte une proportion en masse de nickel comprise entre 19,0 et 31,0% du total.More particularly, this copper-nickel-manganese alloy has a mass proportion of nickel of between 19.0 and 31.0% of the total.

Dans un quatrième mode de réalisation, cet alliage est de type « Monel® ».In a fourth embodiment, this alloy is of the "Monel®" type.

Dans une première variante de « Monel® », l'alliage comporte une proportion en masse de nickel supérieure ou égale à 63,0% du total, une proportion de manganèse inférieure ou égale à 2,0% du total, une proportion en fer inférieure ou égale à 2,5% du total, une proportion en silicium inférieure ou égale à 0,5% du total, une proportion en carbone inférieure ou égale à 0,3% du total, une proportion en soufre inférieure ou égale à 0,02% du total, une proportion en masse de cuivre comprise entre 28,0 et 34,0% du total et telle que le total de la composition soit égal à 100%.In a first variant of "Monel®", the alloy has a mass proportion of nickel greater than or equal to 63.0% of the total, a proportion of manganese less than or equal to 2.0% of the total, a proportion of iron less than or equal to 2.5% of the total, a silicon content less than or equal to 0,5% of the total, a carbon proportion of less than or equal to 0,3% of the total, a proportion of sulfur of not more than 0 , 02% of the total, a mass proportion of copper of between 28.0 and 34.0% of the total and such that the total of the composition is equal to 100%.

Dans une deuxième variante de « Monel® », l'alliage comporte une proportion en masse de nickel supérieure ou égale à 63,0% du total, une proportion de manganèse inférieure ou égale à 1,5% du total, une proportion en fer inférieure ou égale à 2,0% du total, une proportion en silicium inférieure ou égale à 0,5% du total, une proportion en carbone inférieure ou égale à 0,25% du total, une proportion en soufre inférieure ou égale à 0,01% du total, une proportion en masse d'aluminium comprise entre 2,3 et 3,15% du total, une proportion en masse de titane comprise entre 0,35 et 0,75% du total, une proportion en masse de cuivre comprise entre 27,0 et 33,0% du total et telle que le total de la composition soit égal à 100%.In a second variant of "Monel®", the alloy has a mass proportion of nickel greater than or equal to 63.0% of the total, a proportion of manganese less than or equal to 1.5% of the total, a proportion of iron less than or equal to 2.0% of the total, a silicon content less than or equal to 0.5% of the total, a carbon content of less than or equal to 0.25% of the total, a proportion of sulfur of not more than 0 , 01% of the total, a proportion by weight of aluminum of between 2.3 and 3.15% of the total, a mass proportion of titanium included between 0.35 and 0.75% of the total, a mass proportion of copper of between 27.0 and 33.0% of the total and such that the total of the composition is equal to 100%.

Tous les alliages sélectionnés ci-dessus permettent d'obtenir une coloration uniforme, grise, compatible avec de nombreuses utilisations horlogères.All the alloys selected above make it possible to obtain a uniform coloring, gray, compatible with many horological uses.

On peut aussi utiliser des alliages de couleur or et or 5N. Pour l'or jaune, des alliages convenant bien sont le « Nordic gold » Cu89Al5Zn5Sn1, et l'alliage Cu92Al6Ni2, ou encore d'autres alliages de type cupro-aluminium. Ces alliages sont également à base cuivre et monophasés, et la résistance au ternissement et la couleur jaune sont obtenues par l'ajout d'aluminium.Gold and 5N gold alloys can also be used. For yellow gold, alloys that are well suited are the "Nordic gold" Cu89Al5Zn5Sn1, and the Cu92Al6Ni2 alloy, or other cupro-aluminum alloys. These alloys are also copper-based and single-phase, and the tarnish resistance and the yellow color are obtained by the addition of aluminum.

L'invention concerne aussi une pièce d'horlogerie, notamment une montre 10, comportant au moins un tel composant 1 d'habillage.The invention also relates to a timepiece, including a watch 10, comprising at least one such component 1 dressing.

L'invention concerne encore l'utilisation d'un alliage monophasé à structure cubique faces centrées comportant, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, pour la réalisation d'un composant d'habillage interne d'horlogerie 1.The invention also relates to the use of a single-phase, face-centered, cubic structure alloy comprising, by mass, a total copper and nickel greater than or equal to 50.0% of the total, for producing an internal cladding component. watchmaking 1.

Plus particulièrement, elle concerne l'utilisation d'un alliage monophasé à structure cubique faces centrées comportant, au moins du cuivre et du nickel, avec, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, avec une proportion en masse de nickel supérieure ou égale à 15,0% du total, pour la réalisation d'un composant d'habillage interne d'horlogerie 1.More particularly, it relates to the use of a single-phase, face-centered, cubic structure alloy comprising, at least copper and nickel, with, by mass, a total copper and nickel greater than or equal to 50.0% of the total, with a proportion by weight of nickel greater than or equal to 15.0% of the total, for the production of an internal clockwork component 1.

Plus particulièrement, la proportion en masse de nickel est supérieure ou égale à 15,0% du total.More particularly, the proportion by weight of nickel is greater than or equal to 15.0% of the total.

Cet alliage peut être l'un des alliages décrits ci-dessus. Plus particulièrement, on utilise, pour la réalisation d'un composant d'habillage interne d'horlogerie 1, un alliage qui est, ou bien un cupronickel comportant en masse entre 15,0 et 30,0% de nickel, et comportant de 0,0 à 2,0% de manganèse ou/et de fer ou/et de chrome ou/et de zirconium ou/et de silicium, ou bien un maillechort comportant en masse au moins 8,0% de zinc.This alloy may be one of the alloys described above. More particularly, for the production of an internal clockwork cladding component 1, an alloy is used which is either a copper nickel comprising in mass between 15.0 and 30.0% of nickel, and comprising 0 0 to 2.0% of manganese and / or iron and / or chromium and / or zirconium and / or silicon, or a nickel silver containing in mass at least 8.0% zinc.

L'invention concerne encore un procédé de fabrication d'un composant d'habillage interne d'horlogerie 1 de forme et de dimensions déterminées, caractérisé en ce qu'on se munit d'un matériau brut en feuille ou bande ou barre en alliage monophasé à structure cubique faces centrées comportant, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, et en ce qu'on effectue un usinage dudit matériau brut pour l'obtention d'un composant d'habillage interne d'horlogerie 1 aux cotes finies correspondant auxdites forme et dimensions déterminées.The invention also relates to a method of manufacturing an internal cladding component of watchmaking 1 of defined shape and size, characterized in that it is equipped with a raw material sheet or strip or single-phase alloy bar with a face-centered cubic structure comprising, by weight, a total copper and nickel greater than or equal to 50.0% of the total, and in that a machining of said raw material is carried out in order to obtain an internal cladding component timepiece 1 with finished dimensions corresponding to said determined shape and dimensions.

Plus particulièrement, on choisit, pour mettre en oeuvre ce procédé, ledit matériau brut en feuille ou bande ou barre dans alliage monophasé à structure cubique faces centrées comportant au moins du cuivre et du nickel, avec, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, avec une proportion en masse de nickel supérieure ou égale à 15,0% du total.More particularly, in order to implement this method, said raw material in sheet or strip or bar is used in a single-phase, face-centered, cubic structure alloy comprising at least copper and nickel, with, by mass, a total copper and upper nickel or equal to 50.0% of the total, with a proportion by mass of nickel greater than or equal to 15.0% of the total.

Plus particulièrement, la proportion en masse de nickel est supérieure ou égale à 15,0% du total.More particularly, the proportion by weight of nickel is greater than or equal to 15.0% of the total.

Plus particulièrement, on effectue cet usinage par étampage ou/et découpage ou/et emboutissage ou/et par enlèvement de copeaux, et réalise un diamantage de ce composant d'habillage interne d'horlogerie 1 aux cotes finies.More particularly, this machining is performed by stamping and / or cutting and / or stamping and / or chip removal, and performs a diamond of this inner cladding component 1 time finite dimensions.

De préférence, on utilise ce composant brut de diamantage, et dépourvu de tout traitement galvanique.Preferably, this raw diamond component is used, and devoid of any galvanic treatment.

Plus particulièrement, pour mettre en oeuvre ce procédé, on choisit, pour l'alliage du matériau brut, un alliage monophasé à structure cubique faces centrées comportant au moins du cuivre et du nickel, avec, en masse, un total cuivre et nickel supérieur ou égal à 50,0% du total, avec une proportion en masse de nickel supérieure ou égale à 15,0% du total.More particularly, to implement this method, the alloy of the raw material is chosen to be a single-phase alloy having a face-centered cubic structure comprising at least copper and nickel, with, by mass, a total copper and nickel greater or equal to 50.0% of the total, with a proportion by mass of nickel greater than or equal to 15.0% of the total.

Plus particulièrement, la proportion en masse de nickel est supérieure ou égale à 15,0% du total.More particularly, the proportion by weight of nickel is greater than or equal to 15.0% of the total.

Plus particulièrement encore, on choisit, pour l'alliage du matériau brut, ou bien un cupronickel comportant en masse entre 15,0 et 30,0% de nickel, et comportant de 0,0 à 2,0% de manganèse ou/et de fer ou/et de chrome ou/et de zirconium ou/et de silicium, ou bien un maillechort comportant en masse au moins 8,0% de zinc.More particularly, it is chosen, for the alloy of the raw material, or a cupronickel comprising in mass between 15.0 and 30.0% of nickel, and comprising from 0.0 to 2.0% of manganese and / or of iron and / or chromium and / or zirconium or / and silicon, or a nickel silver comprising in mass at least 8.0% zinc.

Claims (20)

  1. Utilisation of a single-phase alloy with a face-centred cubic structure comprising at least copper and nickel, and including a total mass percentage of copper and nickel greater than or equal to 50%, for making an inner component (1) for timepiece parts (1), with a mass proportion of nickel greater than or equal to 15.0% of the total mass, characterized in that said alloy is either a cupronickel including between 20.0 and 30.0 mass percent of nickel, and including from 0.0 to 2.0 mass percent of manganese and/or of iron and/or of chromium and/or of zirconium and/or of silicon, or a nickel silver alloy containing at least 8.0 mass percent of zinc.
  2. Utilisation of a single-phase alloy according to claim 1, characterized in that said component (1) is free of any coating.
  3. Utilisation of a single-phase alloy according to claim 1 or 2, characterized in that said alloy includes at least one element limiting tarnishing, chosen from among nickel, manganese, aluminium, tin, chromium and zirconium.
  4. Utilisation of a single-phase alloy according to any of claims 1 to 3, characterized in that said alloy is a cupronickel and in that the mass proportion of copper in said alloy is greater than or equal to 50% of the total mass.
  5. Inner component (1) for timepiece parts, made entirely from a single-phase alloy with a face-centred cubic structure including a total mass percentage of copper and nickel greater than or equal to 50%, said component (1) being free of any coating, characterized in that:
    - either the mass proportion of nickel in said alloy is greater than or equal to 50% of the total mass;
    - or said alloy is a nickel silver alloy, with a mass proportion of nickel greater than or equal to 20.0% of the total mass, a mass proportion of zinc greater than or equal to 8.0% of the total mass, said mass proportion of copper bringing the total composition to 100%;
    - or said alloy is a cupronickel, with a mass proportion of copper greater than or equal to 50.0% of the total mass, a mass proportion of between 19.0 and 30.0% of nickel, and comprising from 0.0 to 2.0 mass percent of manganese and/or iron and/or chromium and/or zirconium and/or silicon, said mass proportion of copper bringing the total composition to 100%;
    - or said alloy is a cupro-aluminium, or Cu89Al5Zn5Sn1, or Cu92Al6Ni2.
  6. Inner component (1) for timepiece parts according to claim 5, characterized in that the mass proportion of nickel in said alloy is greater than or equal to 50.0% of the total mass.
  7. Inner component (1) for timepiece parts according to claim 6, characterized in that said alloy is a Monel®, with a mass proportion of nickel greater than or equal to 63.0% of the total mass, a proportion of manganese less than or equal to 2.0% of the total mass, a proportion of iron less than or equal to 2.5% of the total mass, a proportion of silicon less than or equal to 0.5% of the total mass, a proportion of carbon less than or equal to 0.3% of the total mass, a proportion of sulphur less than or equal to 0.02% of the total mass, a mass proportion of copper comprised between 28.0 and 34.0% of the total mass and such that the total composition is equal to 100%.
  8. Inner component (1) for timepiece parts according to claim 6, characterized in that said alloy is a Monel®, with a mass proportion of nickel greater than or equal to 63.0% of the total mass, a proportion of manganese less than or equal to 1.5% of the total mass, a proportion of iron less than or equal to 2.0% of the total mass, a proportion of silicon less than or equal to 0.5% of the total mass, a proportion of carbon less than or equal to 0.25% of the total mass, a proportion of sulphur less than or equal to 0.01% of the total mass, a mass proportion of aluminium comprised between 2.3 and 3.15% of the total mass, a mass proportion of titanium comprised between 0.35 and 0.75% of the total mass, a mass proportion of copper comprised between 27.0 and 33.0% of the total mass and such that the total composition is equal to 100%.
  9. Inner component (1) for timepiece parts according to claim 5, characterized in that said alloy is of the cupro-aluminium or Cu89Al5Zn5Sn1 or Cu92Al6Ni2 type.
  10. Inner component (1) for timepiece parts according to claim 5, characterized in that said alloy is a cupronickel, including a mass proportion of copper greater than or equal to 50% of the total mass, between 19.0 and 30.0 mass percent of nickel, and including from 0.0 to 2.0 mass percent of manganese and/or of iron and/or of chromium and/or of zirconium and/or of silicon, and said mass proportion of copper bringing the total composition to 100%.
  11. Inner component (1) for timepiece parts according to claim 10, characterized in that said alloy is a cupronickel, including between 19.0 and 23.0 mass percent of nickel, and including from 0.0 to 1.0 mass percent of manganese and/or of iron, and a mass proportion of copper bringing the total composition to 100%.
  12. Inner component (1) for timepiece parts according to claim 10, characterized in that said alloy is a cupronickel, including between 24.0 and 26.0 mass percent of nickel, and including from 0.0 to 0.5 mass percent of manganese and/or of iron, and a mass proportion of copper bringing the total composition to 100%.
  13. Inner component (1) for timepiece parts according to claim 10, characterized in that said alloy is a cupronickel, including between 29.0 and 32.0 mass percent of nickel, and including from 0.0 to 0.5 mass percent of manganese and/or of iron, and a mass proportion of copper bringing the total composition to 100%.
  14. Inner component (1) for timepiece parts according to claim 5, characterized in that said alloy is a nickel silver alloy, with a mass proportion of nickel greater than or equal to 20% of the total mass, a mass proportion of zinc greater than or equal to 8% of the total mass,, and a mass proportion of copper bringing the total composition to 100%.
  15. Inner component (1) for timepiece parts according to claim 14, characterized in that said nickel silver alloy has a mass proportion of zinc of at least 11.0% of the total mass.
  16. Inner component (1) for timepiece parts according to claim 14 or 15, characterized in that said nickel silver alloy has a mass proportion of nickel of at least 25.0% of the total mass.
  17. Inner component (1) for timepiece parts according to claim 14, characterized in that said nickel silver alloy is an 'ARCAP' including a mass proportion of copper of at least 53.0% of the total mass, a mass proportion of nickel of at least 25.0% of the total mass, and a mass proportion of zinc comprised between 8.0 and 20.0% of the total mass.
  18. Inner component (1) for timepiece parts according to claim 14, characterized in that said nickel silver is an ARCAP of the AP1D type including a mass proportion of copper comprised between 60.0% and 61.0% of the total mass, a mass proportion of nickel comprised between 24.0% and 26.0% of the total mass, and a mass proportion of zinc comprised between 11.0 and 12.0% of the total mass.
  19. Inner component (1) for timepiece parts according to any of claims 14 to 16, characterized in that the mass proportion of copper in said alloy is greater than or equal to 50.0% of the total mass.
  20. Method for fabrication of an inner component (1) for timepiece parts, characterized in that a component according to any of claims 5 to 19 is selected, with a particular composition of a single-phase alloy with a face-centred cubic structure including at least copper and including a total mass percentage of copper and nickel greater than or equal to 50%, said component (1) being of determined shape and dimensions, in which said method there is taken a sheet or strip or bar of raw material, made of said particular alloy composition of said component (1), characterized in that said raw material is machined to obtain an inner component (1) for timepiece parts with finished dimensions that correspond to said determined shape and dimensions, wherein said machining process is effected by stamping and/or cutting and/or pressing and/or chip removal, and wherein said inner component (1) for timepiece parts is diamond polished to the finished dimensions, and wherein said component is used fresh from diamond polishing and without any electroplating or coating.
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JP2016224036A (en) 2016-12-28
US20160349704A1 (en) 2016-12-01
CN106191520B (en) 2018-09-14
EP3098670A1 (en) 2016-11-30
JP6175160B2 (en) 2017-08-02
CN106191520A (en) 2016-12-07

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