Produits et services

Jewellery; Necklaces; Earrings; Imitation jewelry; Boxes of precious metal; Semi-worked precious metals; Clocks; Jewelry charms; Precious metals, unwrought or semi-wrought; Precious metals.

Produits et services

Jewelry, necklaces, earrings, imitation jewelry, unworked or semi-worked precious metal, precious metal boxes, clocks and jewelry charms

Abrégé

Provided are: a silver product which has high hardness (HV), rarely undergoes metal corrosion or discoloration and comprises pure silver and an ultra-high-purity silver alloy; and a method for manufacturing the silver product. A silver product comprising pure silver or a silver alloy having purity of 99.9% by weight or more, the silver product being characterized in that, when the Vickers hardness of the silver product is 60 HV or more and the heights of a peak appearing at 2θ = 38°±0.2° and a peak appearing at 2θ = 44°±0.4° in an X-ray diffraction chart obtained by the XRD analysis of the silver product are respectively defined as h1 and h2, the h2/h1 value is 0.2 or more; and a method for manufacturing the silver product.

Classes IPC  ?

• B44C 1/18 - Application de structures ornementales, p. ex. de corps façonnés en matière plastique
• A44C 27/00 - Confection de bijoux ou d'autres articles de parure personnelle
• B23P 9/00 - Traitement ou finition mécanique des surfaces, avec ou sans calibrage, dans le but primordial de mieux résister à l'usure ou aux chocs, p. ex. traitement des aubes de turbines ou des paliers pour les rendre lisses ou rugueuxCaractéristiques, non prévues ailleurs, de telles surfaces lorsque leur traitement n'est pas précisé

Abrégé

The present invention provides: silver jewelry obtained using pure silver and a silver alloy, the jewelry having high hardness (HV) and and being such that a metal allergy, discoloration, etc., are unlikely to occur; and a method for manufacturing the silver jewelry. Silver jewelry comprising pure silver or a silver alloy having purity of 99.9 wt% or higher, wherein the silver jewelry and the method for manufacturing the jewelry are characterized in that when the Vickers hardness of the silver jewelry is set at 60 HV or higher, the value of h2/h1 is set at 0.2 or greater, where h1 is the height of a peak at which 2θ = 38° ± 0.2° on an X-ray diffraction chart obtained using XRD analysis of the silver jewelry, and h2 is the height of a peak at which 2θ = 44° ± 0.4°.

Classes IPC  ?

• A44C 7/00 - Boucles d'oreillesDispositifs pour percer les lobes d'oreilles
• A44C 25/00 - Articles divers de fantaisie à porter, non prévus dans les groupes ou , p. ex. croix, crucifix, amulettes
• A44C 27/00 - Confection de bijoux ou d'autres articles de parure personnelle
• B44C 1/18 - Application de structures ornementales, p. ex. de corps façonnés en matière plastique