SUPPORTING STRUCTURE OF SAND CORE FOR CYLINDER BLOCK

PROBLEM TO BE SOLVED: To nicely cast a cylinder block having high precision by effectively preventing damage of a sand core at the casting time. SOLUTION: A supporting structure for supporting the sand core in a metallic mold is provided with a first supporting part 26. This first supporting part 26...

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Bibliographische Detailangaben
Hauptverfasser:	UMEMOTO TETSUJI, UENO MITSUAKI, NAKABAYASHI SHIGEMITSU
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES COMBUSTION ENGINES CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES FOUNDRY MOULDING HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To nicely cast a cylinder block having high precision by effectively preventing damage of a sand core at the casting time. SOLUTION: A supporting structure for supporting the sand core in a metallic mold is provided with a first supporting part 26. This first supporting part 26 is constituted of the sand core and provided with an almost triangular-shaped foot part 38 having three flattened surfaces 46a-46c in the cross section shape and the foot part 38 is housed into a recessed part 48 formed in a movable mold 18. Positioning support of the sand core is performed by supporting the flattened surfaces 46a-46c at three parts with flattened projecting parts 50a-50c arranged on the wall surface 48a of the recessed part 48. COPYRIGHT: (C)2003,JPO