PROCESS FOR PRODUCTION OF SEMISOLIDIFIED SLURRY OF IRON-BASE ALLOY; PROCESS FOR PRODUCTION OF CAST IRON CASTINGS BY USING THE PROCESS, AND CAST IRON CASTINGS

Title:

PROCESS FOR PRODUCTION OF SEMISOLIDIFIED SLURRY OF IRON-BASE ALLOY; PROCESS FOR PRODUCTION OF CAST IRON CASTINGS BY USING THE PROCESS, AND CAST IRON CASTINGS

Document Type and Number:

WIPO Patent Application WO/2010/103641

Kind Code:

A1

Abstract:

A process for the production of a semisolidified iron-base alloy slurry consisting of both a crystallized solid phase and a remaining liquid phase. The process comprises using a material having a hypoeutectic cast iron composition, adding an additive which has a boiling point lower than at least the crystallization initiation temperature of initial crystals of the material to the melt of the material when the melt temperature is within a prescribed range of the crystallization initiation temperature of initial crystals to the crystallization initiation temperature thereof plus 50°C, and thus conducting simultaneously both the stirring of the melt by the boiling of the additive and the cooling of the melt to a temperature falling within the semisolidification temperature range of the material.

Inventors:

SHIKAI SYUICHI (JP)
FUJINAGA YASUSHI (JP)
SASAKI MINORU (JP)
OHKADO TOSHIO (JP)
NISHIKAWA SUSUMU (JP)

Application Number:

PCT/JP2009/054743

Publication Date:

September 16, 2010

Filing Date:

March 12, 2009

Export Citation:

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Assignee:

KOGI CORP (JP)
SHIKAI SYUICHI (JP)
FUJINAGA YASUSHI (JP)
SASAKI MINORU (JP)
OHKADO TOSHIO (JP)
NISHIKAWA SUSUMU (JP)

International Classes:

B22D17/00; B22D1/00; B22D27/20; C22C33/10

Domestic Patent References:

WO2008096411A1

2008-08-14

Foreign References:

JP2004292932A	2004-10-21
JP2006122971A	2006-05-18
JPH06297097A	1994-10-25
JPH1034307A	1998-02-10
JP2005088083A	2005-04-07

Other References: