BRAZING FILLER ALLOY FOR PLATINUM DECORATION

PURPOSE:To realize the excellent brazing of the platinum alloy, in particular, the so-called hardened platinum by constituting the alloy to have the composition consisting of tin of a specific weight ratio and the balance silver. CONSTITUTION:The brazing filler alloy for platinum decorations has the...

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Bibliographische Detailangaben
1. Verfasser:	TAKARASAWA KATSUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To realize the excellent brazing of the platinum alloy, in particular, the so-called hardened platinum by constituting the alloy to have the composition consisting of tin of a specific weight ratio and the balance silver. CONSTITUTION:The brazing filler alloy for platinum decorations has the composition consisting of 25-80wt.% tin, and the balance silver. The brazing filler metal capable of being used at the temperature range of 300-600 deg.C in the melting point can be obtained from the brazing filler alloy for platinum decorations. This alloy allows the brazing of the platinum alloy, as well as the hardened platinum without being softened, and still more, can be used for the jewelry parts without deteriorating the reliability of the hardened platinum. In addition, the color tone is similar to that of the platinum alloy and the hardened platinum, and gloss is also imparted so that sense of incompatibility is not caused at the joined part.