Brazing product and method of manufacturing a brazing product

the invention relates to a brazing sheet product including a core sheet, on at least one >ide of the core sheet a clad layer of an aluminium alloy including silicon in an amount in the range of 4 to 14% by weight, and further including on at least one outersurface of the clad layer a plated layer...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WITTEBROOD ADIANUS JACOBUS,WIJENBERG JACQUES HUBERT OLGA,MOOIJ JOOP NICOLAAS
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS BLASTING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS HEAT EXCHANGE IN GENERAL HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	the invention relates to a brazing sheet product including a core sheet, on at least one >ide of the core sheet a clad layer of an aluminium alloy including silicon in an amount in the range of 4 to 14% by weight, and further including on at least one outersurface of the clad layer a plated layer of nickel-tin alloy, such that the clad layer and all layers exterior thereto form a metal filler for a brazing operation and have a composition with the proviso that the mol-ratio of Ni:Sn is in the range of 10:(0.5 to 9). The invention further relates to a method of manufacturing an A1 or Al alloy workpiece, which method includes the steps of: (a) providing an Al or Al alloy workpiece, (b) pre-treating the outersurface of the A1 or A1 alloy workpiece, and (c) plating a metal layer comprising nickel onto said outersurface of the A1 or Al alloy workpiece, and wherein during step (c) the metal layer comprising nickel is deposited by plating a nickel-tin alloy using an aqueous plating bath including a nickel-ion concentration in a range of 2 to SO g/1 and a tin-ion concentration in the range of 0.2 to 20 g/l.