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

Title:

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

Document Type and Number:

WIPO Patent Application WO/2013/094652

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide: a process for producing a spheroidal-graphite cast iron having high properties using a spheroidizing agent that contains no rare-earth element; and a spheroidal-graphite cast iron member comprising the spheroidal-graphite cast iron. The invention relates to obtaining a spheroidal-graphite cast iron having high properties and a spheroidal-graphite cast iron member by subjecting an iron melt to a spheroidization treatment with a spheroidizing agent comprising an Fe-Si-Mg-Ca alloy that contains a given amount of barium and contains substantially no rare-earth element, a first inoculation treatment, and a melt-stream inoculation treatment.

Inventors:

BABA TSUKASA (JP)
HORIYA TAKAO (JP)
TOKIYAMA TAKUYA (JP)
SATO TAKASHI (JP)
IDEI HIROSHI (JP)
NISHIKAWA YUTAKA (JP)
KITAHARA MASAKAZU (JP)
NARITA HIDEKAZU (JP)

Application Number:

PCT/JP2012/082962

Publication Date:

June 27, 2013

Filing Date:

December 19, 2012

Export Citation:

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Assignee:

AKEBONO BRAKE IND (JP)

International Classes:

C21C1/10; B22D27/20; C22C37/04; C22C38/00

Foreign References:

JPH08188812A	1996-07-23
JPS61223116A	1986-10-03
JPH08333650A	1996-12-17
JPS5943844A	1984-03-12
JPH10237528A	1998-09-08
JP2000303113A	2000-10-31
JP2007182620A	2007-07-19
JPH09125125A	1997-05-13
JPH06279917A	1994-10-04
JPH10317093A	1998-12-02
JP2004339577A	2004-12-02

Other References: