| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tube for a heat exchanger having an anticorrosive configuration not easily affected by heat treatment conditions when brazing, and having long service life by preventing corrosion. <P>SOLUTION: This tube 1 for the heat exchanger for brazing a flat multihole mold is molded by bending a plate-like body for manufacturing tube constituted of clad Al-Si alloy brazing filler metal as an inner skin layer 3 on one face side of a core material 2 and a clad sacrificial corrosive agent as an outer skin layer 4 on the other face side of it. The plate-like body for manufacturing a tube has two opposing flat wall forming parts 11, 12, a connection part 13 for connecting them to form a side wall on one side, side wall forming parts 19, 20 and 22 formed continuously at side fringes of the flat wall forming parts 11, 12 to form a side wall on the other side, and reinforcing wall forming parts 15, 17 formed by raising the inner skin layer 3 side of the flat wall forming part 11 to form a reinforcing wall. Outer skin layers 5 of the reinforcing wall forming parts 15, 17 are formed to be thicker than flat parts. <P>COPYRIGHT: (C)2009,JPO&INPIT |
