| 摘要 |
PROBLEM TO BE SOLVED: To provide a brazing sheet fin material capable of preventing any leaning deformation of a fin end even when assembling a heat exchanger core through corrugation working, and executing the brazing at high temperature exceeding 610°C by using a thin-walled brazing sheet fin material having the sheet thickness of≤85μm. SOLUTION: In the brazing sheet fin in which a brazing filler metal composed of an Al-Si alloy is joined with both sides of a core consisting of an Al-Mn alloy, the Si amount (Sic) of a core is within 0.05-0.28 mass%, the Si amount (Sif) of the brazing filler metal is within 6.0-8.8 mass%, the single side mean clad ratio (CR) of the brazing filler metal is within 6.5-12.0%, and at the same time, these factors satisfy inequality X=CR×(Sif-Sic+0.6)+50×Sic≤95. COPYRIGHT: (C)2010,JPO&INPIT |
