STAINLESS BRONZE ALLOY AND ITS USE IN GALVANIZED PRODUCTS

The present invention describes a copper/Tin-based alloy containing Pt and optionally Zn and/or Pd having colorimetric coordinates that can be modulated from white to yellow to pink and exhibiting striking hardness and thus wear resistance characteristics. The invention also relates to a particular...

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Bibliographische Detailangaben
Hauptverfasser:	CAVACIOCCHI, Lorenzo, LUCONI, Leandro, SIMONELLI, Matteo, LAVANGA, Mario
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS APPARATUS THEREFOR CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present invention describes a copper/Tin-based alloy containing Pt and optionally Zn and/or Pd having colorimetric coordinates that can be modulated from white to yellow to pink and exhibiting striking hardness and thus wear resistance characteristics. The invention also relates to a particular sequence of galvanic deposits, wherein a first coating consisting of a Nickel-Cobalt-Phosphorus based alloy is underlying a second coating consisting of a copper/Tin based alloy containing Pt and/or Pd and optionally Zn ad, to obtain hypoallergenic, zero Ni-releasing galvanized objects. La présente invention concerne un alliage à base de cuivre-étain contenant du Pt et éventuellement du Zn et/ou du Pd, l'alliage ayant des coordonnées colorimétriques qui peuvent être modulées du blanc au jaune et au rose et présentant une dureté à la frappe et donc des caractéristiques de résistance à l'usure. L'invention concerne également une séquence particulière de dépôts galvaniques, un premier revêtement constitué d'un alliage à base de nickel-cobalt-phosphore étant sous-jacent à un second revêtement constitué d'un alliage à base de cuivre-étain contenant du Pt et/ou du Pd et éventuellement du Zn, afin d'obtenir des objets galvanisés hypoallergéniques ne libérant aucun nickel.