C - Chemistry – Metallurgy – 25 – F
Patent
C - Chemistry, Metallurgy
25
F
C25F 3/22 (2006.01) A61L 31/02 (2006.01) C25D 1/04 (2006.01)
Patent
CA 2541178
A method of cleaning or polishing an alloy comprising at least one noble metal and at least one non-noble metal said method comprising the step of submerging said alloy in an electrolytic acidic bath comprising at least one complexing agent comprising sulfur and applying a multiple pulse waveform, and articles cleaned or polished thereby.
L'invention concerne un procédé pour nettoyer et polir un alliage contenant au moins un métal noble et un métal qui ne l'est pas. Ce procédé consiste à immerger cet alliage dans un bain acide électrolytique contenant au moins un agent chélateur ou complexant pourvu de soufre, et à appliquer une forme d'onde inversée périodique à impulsions multiples. La présente invention porte également sur des articles nettoyés et/ou polis selon ce procédé.
Larson Steve
Nielson Eric
Vancamp Daniel
Boston Scientific Limited
Piasetzki Nenniger Kvas Llp
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