| 摘要 |
In a heat exchanger having a casing in which a joint of the casing and between a core 5 and the casing are brazed and fixed without a gap, the section of a portion in contact with the casing body 1 is formed at a right angle at both ends of an upper edge portion 8 of a header plate 3, and an upper lid 2 is fitted so that it is brought into contact with the upper edge of the header plate 3 over the entire length. |
