| 摘要 |
PROBLEM TO BE SOLVED: To provide a green sand casting method with which separation of a pouring-cup from a sprue is surely performed at a low cost and working efficiency of shake-out mold can be improved and also, regeneration of the sand can easily be performed. SOLUTION: The green sand casting method for producing a cast product by pouring molten metal into a cavity formed with an upper mold and a lower mold molded with the green sand, includes: a process for vertically sticking the upper mold with a heap-up mold formed at the upper part, at the same time of molding with the lower mold; a process for forming the pouring-cup communicating with the down-sprue extended in the vertical direction and formed on the upper mold in the heap-up mold; and a process for pouring the molten metal from the pouring-cup into the cavity and also, stopping the pouring at the upper part of the sprue. COPYRIGHT: (C)2007,JPO&INPIT
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