| 摘要 |
<p>A heat exchanger tube (10) comprises first sheet of material, less than 0.15 mm thick, partially forming broad (22) and narrow sides of tube body and partially enclosing an interior space, and including a fold extending inwardly from the broad side into interior space to partially define 2 flow paths on opposite sides of the fold; and second sheet of material partially forming a fin brazed to the tube body with brazing material. The first sheet of material comprises layers having aluminum alloy, aluminum alloy with accumulations of intermetallic compound including silicon, and metal material. The heat exchanger tube comprises first sheet of material (12), less than 0.15 mm thick, partially forming broad and narrow (18) sides of a tube body and partially enclosing an interior space, and including a fold extending inwardly from the broad side into the interior space to partially define 2 flow paths on opposite sides of the fold; and second sheet of material (14) partially forming a fin brazed to the tube body with brazing material. The first sheet of material comprises first layer having aluminum alloy, second layer having aluminum alloy with accumulations of intermetallic compound including silicon, and third layer having metal material that is anodic with respect to the second layer and that is more resistant to the diffusion of silicon than the second layer. The second layer is between the first and third layers, and the third layer is between the second layer and brazing material. An independent claim is included for a method of forming the heat exchanger tube.</p> |
