MOLDING CORE

MOLDING CORE

PROBLEM TO BE SOLVED: To provide a manufacturing method of a molding core which can be effective for weight reduction as well as resource saving and also can suppress solidification shrinkage, by making the inside of the core porous while keeping the surface layer dense. SOLUTION: The molding core i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YAMAZAKI TARO, HAYASHI CHITOSE, ISHIGURO TOMOAKI
Format: Patent
Sprache:eng
Schlagworte:
CASTING
FOUNDRY MOULDING
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a manufacturing method of a molding core which can be effective for weight reduction as well as resource saving and also can suppress solidification shrinkage, by making the inside of the core porous while keeping the surface layer dense. SOLUTION: The molding core is dense in the surface layer and porous at the inside thereof, and further has collapsibility when contacted to water. COPYRIGHT: (C)2009,JPO&INPIT