CLAD TUBE MADE OF ALUMINUM ALLOY FOR BRAZE-JOINING AND HEAT EXCHANGER TO WHICH THE CLAD TUBE MADE OF ALUMINUM ALLOY IS APPLIED

PROBLEM TO BE SOLVED: To disclose a clad tube made of an aluminum alloy for braze-joining that can achieve both the corrosion resistance of a tube and the corrosion resistance of a joint, and is excellent in hairpin bendability.SOLUTION: In a clad tube made of an aluminum alloy for braze-joining tha...

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Bibliographische Detailangaben
Hauptverfasser:	WAKAKURI SATOSHI, YAMAGUCHI KOICHI, OTANI YOSHIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BLASTING 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 DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION FERROUS OR NON-FERROUS ALLOYS HEAT EXCHANGE IN GENERAL HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To disclose a clad tube made of an aluminum alloy for braze-joining that can achieve both the corrosion resistance of a tube and the corrosion resistance of a joint, and is excellent in hairpin bendability.SOLUTION: In a clad tube made of an aluminum alloy for braze-joining that includes a core material made of an aluminum alloy and a skin material made of an aluminum alloy clad on the outer surface of the core material, and is joined with other members by brazing, the core material is composed of an aluminum alloy containing 0.8-1.8% by mass Mn, 0.4-0.8% by mass Cu and 0.2% by mass or less Si, the balance being aluminum and inevitable impurities, and the skin material is composed of an aluminum alloy containing 0.5-1.5% by mass Zn, the balance being aluminum and inevitable impurities. Further, the clad tube made of an aluminum alloy for braze-joining is characterized in that the average cross-sectional crystal grain size of the core material is 150 μm or less.