| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a braze-joined Al member which has excellent corrosion resistance at and around a braze-joined portion between Al members. <P>SOLUTION: The method for manufacturing a braze-joined Al member includes a step of joining a plurality of Al members by use of an Al alloy brazing filler metal wire. The Al alloy brazing filler metal contains Si: 9.0-14.0 mass%, Zn; 0.5-6.0 mass%, Cu: 0.5 mass% or less, and Fe: 0.1-0.9 mass%, the remainder Al and inevitable impurities. The relation of pitting potential between a fillet after brazing using the wire and the circumferential Al member is (pitting potential of fillet)-(pitting potential of Al member)=-150 to 200 mV. <P>COPYRIGHT: (C)2012,JPO&INPIT |
