| 摘要 |
PROBLEM TO BE SOLVED: To easily manufacture a plurality of heat sinks 100.SOLUTION: First, by folding a long plate material in an oblique vertical direction at a predetermined interval, a fin member 110 having a plurality of concaves and convexes aligned in an oblique stripe shape is generated. Next, the generated fin member 110 is wound round a shaft member 101 in a spiral shape. Then, a plurality of heat sinks 100 is manufactured by cutting the shaft, having the fin member 110 wound in the spiral shape, in round slices. |
