发明名称 SOCKET INNER SURFACE MOLDING CORE IN CENTRIFUGAL CASTING APPARATUS
摘要 PROBLEM TO BE SOLVED: To prevent the generation of a gap caused by the defect in diameter widening of divided core parts at the time of subjecting a tube to centrifugal casting using a metal core having divided core parts, thus to prevent the generation of fins on a product. SOLUTION: In a metal flask 20 for subjecting a tube 25 having a socket 26 on one end to centrifugal casting, the edge parts 22 on the socket side are mounted with a core 31. The core 31 comprises: flange parts 32 mounted on the edge parts 22 on the socket side of the metal flask 20; cylindrical divided core parts 40 arranged coaxially from the flange parts 32 toward the inner part of the socket in the metal flask 20, further plurally divided along the circumferential direction, also, whose shape is made into the regular one at the time of casting because the diameter can be widen, and whose diameter can be shrunk from the regular shape upon the end of the casting; and core part diameter widening members 57 inserted into the divided core parts 40 at the time of casting and pressing the inner circumferences of the divided core parts 40 to the diameter widening direction. COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2005349429(A) 申请公布日期 2005.12.22
申请号 JP20040171948 申请日期 2004.06.10
申请人 KUBOTA CORP 发明人 TAKAHASHI YUTARO;AKIYAMA NAOHISA
分类号 B22D13/10;B22C9/10;(IPC1-7):B22D13/10 主分类号 B22D13/10
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