| 摘要 |
The present invention relates to a gravity casting method, capable of manufacturing a cylinder head for a vehicle and, more specifically, to a gravity casting method including molten metal injected into a mold and a riser part placed in an upper part of the molten metal. As an electromagnetic force generating part is included in the riser part and the electromagnetic force generating part includes (+) and (-) electrodes and N and S poles, the productivity of castings and the efficiency of processes for gravity casting are improved. As scraps are reduced, production costs are reduced, and a fault of a shrinkage cavity in the castings is suppressed. |
