ALUMINUM ALLOY BRAZING SHEET, METHOD FOR PRODUCING SAME AND HEAT EXCHANGER

ALUMINUM ALLOY BRAZING SHEET, METHOD FOR PRODUCING SAME AND HEAT EXCHANGER

Disclosed are the aluminum alloy brazing sheet, the method for producing the same, and the heat exchanger, and the aluminum alloy brazing sheet having a core material and a brazing material on at least one face of the core material, in which the core material is made of an Al-Mn-based alloy or an Al...

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Bibliographische Detailangaben
Hauptverfasser: YAMADA, Shogo, MATSUKADO, Katsuhiro, TESHIMA, Shoei, TSURUNO, Akihiro, NISHIYAMA, Kouki, IKEDA, Tooru
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
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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:Disclosed are the aluminum alloy brazing sheet, the method for producing the same, and the heat exchanger, and the aluminum alloy brazing sheet having a core material and a brazing material on at least one face of the core material, in which the core material is made of an Al-Mn-based alloy or an Al-Mn-Cu-based alloy, the brazing material is made of an Al-Si-Zn-based alloy containing Si: 2 to 8% by mass and Zn: 1 to 9% by mass, a liquid phase fraction X (%) at a brazing temperature of the brazing material and a brazing material thickness Y (μm) satisfy the following formulae (1) to (3): (1) 30≤X≤80; (2) Y≥25; and (3) 1000≤X×Y≤24000, and an average length of an α phase remaining in the brazing material on the core material after brazing satisfies at least one of not less than 80% of a thickness of a residual brazing material and not less than 70 μm.