08-04-2021 дата публикации
Номер: US20210103250A1
A timepiece component for a timepiece movement and notably a pivot arbor of a regulating member of a mechanical timepiece movement, made of an alloy containing by weight: between 25% and 55% of palladium, between 25% and 55% of silver, between 10% and 30% of copper, between 0.5% and 5% of zinc, gold and platinum with a total percentage of these two elements comprised between 15% and 25%, between 0% and 1% of one or more elements chosen from among boron and nickel, between 0% and 3% of one or more elements chosen from among rhenium and ruthenium, no more than 0.1% of one or more elements chosen from among iridium, osmium and rhodium, and no more than 0.2% of other impurities, the respective quantities of the components being such that, added together, they do not exceed 100%. 1. A timepiece component for a timepiece movement , and notably a pivot arbor of a regulating member of a mechanical timepiece movement , made of an alloy comprising by weight:between 25% and 55% of palladium,between 25% and 55% of silver,between 10% and 30% of copper,between 0.5% and 5% of zinc,gold and platinum with a total percentage of these two elements comprised between 5% and 25%,between 0% and 1% of one or more elements chosen from among boron and nickel,between 0% and 3% of one or more elements chosen from among rhenium and ruthenium,no more than 0.1% of one or more elements chosen from among iridium, osmium and rhodium, andno more than 0.2% of other impurities, the respective quantities of the components being such that, together, they add up to 100%.2. The timepiece component according to claim 1 , wherein the alloy contains by weight between 30% and 40% of palladium.3. The timepiece component according to claim 1 , wherein the alloy contains by weight between 25% and 35% of silver.4. The timepiece component according to claim 1 , wherein the alloy contains by weight between 10% and 18% of copper.5. The timepiece component according to claim 1 , wherein the alloy contains by weight ...
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