| 摘要 |
PROBLEM TO BE SOLVED: To improve the mechanical strength at a disk portion by forcibly cooling bolt-fitting parts for the disk near a center gate and the designing surface of the disk, to improve the operational efficiency of a casting operation by shortening the solidification time of the molten metal by forcibly cooling near the center gate, and to prevent the erosion near the center gate because a diameter of the center gate can be made small. SOLUTION: A low pressure casting apparatus for a wheel of vehicle is the one, in which a mold device for casting the wheel having a forming space for rim, forming spaces for spoke parts and a forming space for disk, are provided and the center gate is arranged at almost center part of the forming space for disk and also, necessary number of side gates are arranged in the forming space for rim.
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