| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a highly corrosion-resistant low-temperature brazing filler metal for joining Al alloy. <P>SOLUTION: The low-temperature brazing filler metal for joining aluminum alloy contains≥4.0 wt% and <8.0 wt% Si, 7.0-20.0 wt% Zn, and 10.0-35.0 wt% Cu, with the balance consisting of aluminum and inevitable impurities. Since the low-temperature brazing filler metal is superior in corrosion resistance, it stably maintains brazing strength even under a corrosive environment. Also, since brazing temperature can be set low, various problems in a high temperature brazing filler metal are all solved, such problems as deterioration in corrosion resistance of a core material caused by diffusion of Zn in a sacrificial material of a brazing sheet into the core material. Furthermore, operation time for brazing can be reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
