| 摘要 |
A warp of a side plate in the lengthwise direction is reduced by means of a simple shape formed by pressing without increasing a press machine in size. A side plate, for a heat exchanger, to be arranged at the end of a core section 13 composed of tubes 11 and fins 12 has a long and narrow shape with a U-shaped section formed by a bottom section 21 and bent sections 22 and 23 formed by bending both ends of the bottom section 21 in the width direction, and a plurality of recesses 24 extending in the width direction are formed by pressing the bottom section 21 at predetermined intervals c.
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