| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling part body for casting a robust wheel product for automobiles. SOLUTION: Since this casting device is provided with an entire cooling part 16a for cooling the whole insert 8a and a point cooling part 14a for forcibly cooling a hub part 54, the robust wheel product for automobiles having no defect or the like can be cast. Further, by interposing a buffer material 13 for buffering thermal expansion/shrinkage between the insert 8a and either one of the entire cooling part 16a or the point cooling part 14a, or both parts of the cooling part body 9a, it can be prevented to generate a cavity in a contact part of the insert 8a and the cooling part body 9a by thermal expansion or shrinkage deformation. Furthermore, since the casting device does not need to previously arrange an escape space 18 anticipating the thermal expansion or shrinkage deformation, a pertinent cooling effect can be obtained, thus efficiently producing the robust wheel product.
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