TARNISHING RESISTANT COPPER GOLD ALLOY, IN PARTICULAR 9K, AND METHOD FOR PRODUCTION THEREOF

The invention refers to an alloy, in particular for jewellery, characterized in that it comprises: Gold in the amount comprised between 330 ‰ and 420 ‰ in weight; Copper in the amount comprised between 500 ‰ and 620 ‰ in weight; Palladium in the amount comprised between 5 ‰ and 35 ‰ in weight. The i...

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Bibliographische Detailangaben
Hauptverfasser:	ARNABOLDI, Sergio, ROSSINI, Marta, NAUER, Marco
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention refers to an alloy, in particular for jewellery, characterized in that it comprises: Gold in the amount comprised between 330 ‰ and 420 ‰ in weight; Copper in the amount comprised between 500 ‰ and 620 ‰ in weight; Palladium in the amount comprised between 5 ‰ and 35 ‰ in weight. The invention also refers to a method of production of the alloy itself, a method of production of an item for jewellery and an item of jewellery.