SURFACE BRAZING METHOD OF ALUMINUM ALLOY MATERIAL

PROBLEM TO BE SOLVED: To provide a flux-free method of surface brazing two aluminum alloy members using a single-layer brazing sheet.SOLUTION: While maintaining a brazing temperature of 570°C or greater in an inert gas atmosphere and while applying a surface pressure of at least 0.6 gf/mm, the alumi...

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI TOMOHIRO, HORI HISASHI, KOKUBO TAKAKUNI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS 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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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a flux-free method of surface brazing two aluminum alloy members using a single-layer brazing sheet.SOLUTION: While maintaining a brazing temperature of 570°C or greater in an inert gas atmosphere and while applying a surface pressure of at least 0.6 gf/mm, the aluminum alloy members are brazed flux-free, in a state in which a single-layer brazing sheet 15-200 μm thick comprising a brazing material including a component composition of 3-12 mass% Si, 0.1-5.0 mass% Mg and the remaining portion consisting of Al and unavoidable impurities is positioned between and in surface contact with the aluminum alloy members which have a solidus temperature of 570°C or greater.