METHOD FOR PRODUCING ALUMINUM ALLOY IN WHICH Al-Fe-Si-BASED COMPOUND AND PRIMARY CRYSTAL Si ARE FINELY DIVIDED

Title:

METHOD FOR PRODUCING ALUMINUM ALLOY IN WHICH Al-Fe-Si-BASED COMPOUND AND PRIMARY CRYSTAL Si ARE FINELY DIVIDED

Document Type and Number:

WIPO Patent Application WO/2013/054716

Kind Code:

A1

Abstract:

Provided is a method for producing an inexpensive aluminum alloy, in which it is possible to finely crystallize an Al-Fe-Si-based compound and primary crystal Si by using a simple means. An molten aluminum alloy contains 10 to 20 mass % of Si, 0.5 to 4 mass % of Fe and 0.003 to 0.02 mass % of P, further contains at least one of Mn, Ni and Cr if necessary, and further contains at least one of Mg, Ti, Cr, Zr and V if necessary, with the remainder comprising Al and unavoidable impurities, and to the molten aluminum alloy is added 0.01 to 1 mass %, in terms of silicide, of a substance that contains a finely divided metal silicide, which is present as a solid phase in the molten metal, when the Al-Fe-Si-based compound is crystallized. The substance that contains a finely divided metal silicide, which is added to the molten aluminum alloy, is preferably a powder of a metal silicide per se or a master alloy.

Inventors:

ODA KAZUHIRO (JP)
ISOBE TOMOHIRO (JP)
OKADA HIROSHI (JP)

Application Number:

PCT/JP2012/075692

Publication Date:

April 18, 2013

Filing Date:

October 03, 2012

Export Citation:

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Assignee:

NIPPON LIGHT METAL CO (JP)

International Classes:

B22D21/04; C22F1/043; B22D27/20; C22C21/02; C22F1/00

Foreign References:

JP2002096157A	2002-04-02
JP2004209487A	2004-07-29
JPH0196341A	1989-04-14
JPH02221349A	1990-09-04
JPS57177943A	1982-11-01
JP2002535488A	2002-10-22
JPS62227057A	1987-10-06
JP2004027316A	2004-01-29
JP2010090429A	2010-04-22

Other References: