| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold capable of improving cooling efficiency without increasing the number of cooling parts.SOLUTION: A mold 1 comprises a cooling hole 3H and a hollow pipe 3P inserted into the cooling hole 3H, and includes a cooling part 3 which is a passage of a cooling medium formed of a space part in the hollow pipe 3 and a space between the hollow pipe 3P and the cooling hole 3H. An inner wall of the cooling hole 3H and an outer peripheral surface of the hollow pipe 3P are connected through a heat transfer member 3T while opening an opening part allowing passage of the cooling medium.SELECTED DRAWING: Figure 1 |
