WATER COOLED TYPE MOLDING TOOL

摘要

PURPOSE:To improve the fluidity and packability of a molten metal so as to permit shorter cooling and solidifying of the molten metal and to improve the efficiency of casting by providing a molding block and water feeding and draining block to a molding tool and providing cooling water pipes to the water feeding and draining block. CONSTITUTION:The cooling water is distributed to the plural cooling water pipes 111-116 when the pressurized cooling water is forcibly fed through a water feeding conduit 9 to a water feeding passage 7 by water feed pump. The cooling water flows into cooling water holes 61-63 and turns back therefrom to flow along the inside peripheral walls thereof so as to be discharged through a draining passage 8. Part of the side molding tool MS corresponding to the thick-walled part of the casting is forcibly cooled by the cooling water flowing in the holes 61-63 to efficiently cool the molten metal of the higher flow rate flowing to a cavity 1 corresponding to the thick-walled part of the casting. On the other hand, the other parts of the side molding tool MS corresponding to the thin-walled part is indirectly cooled via heat insulating pipes 12... by the cooling water flowing in the holes 64-66.