PROCESS FOR PRODUCING SPHEROIDAL-GRAPHITE CAST IRON, AND SPHEROIDAL-GRAPHITE CAST IRON MEMBER OBTAINED FROM SAID SPHEROIDAL-GRAPHITE CAST IRON

An object of the present invention is to provide a process for producing spheroidal graphite cast iron having high properties using a spheroidizing agent containing no rare-earth element and to provide a spheroidal graphite cast iron member including the spheroidal graphite cast iron. The present in...

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Bibliographische Detailangaben
Hauptverfasser:	SATO TAKASHI, NISHIKAWA YUTAKA, KITAHARA MASAKAZU, IDEI HIROSHI, NARITA HIDEKAZU, TOKIYAMA TAKUYA, BABA TSUKASA, HORIYA TAKAO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	An object of the present invention is to provide a process for producing spheroidal graphite cast iron having high properties using a spheroidizing agent containing no rare-earth element and to provide a spheroidal graphite cast iron member including the spheroidal graphite cast iron. The present invention relates to obtaining spheroidal graphite cast iron having high properties and a spheroidal graphite cast iron member by subjecting a molten iron to a spheroidization treatment using a spheroidizing agent of an Fe-Si-Mg-Ca-based alloy which contains a given amount of Ba and contains substantially no rare-earth element and to a primary inoculation treatment and a pouring inoculation treatment.