| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a brazing filler metal which is low in melting point and suitable for vacuum-brazing an aluminum-based metal, has a foil shape, and is excellent in flexibility. <P>SOLUTION: The brazing filler metal is composed of, by mass, 10.0 to 24.5% of Cu, 4.0 to 10.0% of Si, and 0.3 to 2.5% of Mg, and its remaining part is composed of Al and inevitable impurities. The brazing filler metal uses a rapid-cooling coagulation foil body having a chemical composition in a range (including a boundary ) in which contents of Cu and Si are surrounded by a linear line which connects A-B-C-D-E-F-A in Fig.1, and the average thickness of the brazing filler metal is 15 to 100 μm. <P>COPYRIGHT: (C)2013,JPO&INPIT |
