Title:
COPPER ALLOY WITH HIGH STRENGTH AND EXCELLENT PROCESSABILITY IN BENDING AND PROCESS FOR PRODUCING COPPER ALLOY SHEET
Document Type and Number:
WIPO Patent Application WO/2007/007517
Kind Code:
A1
Abstract:
A Cu-Fe-P alloy which combines enhanced strength and enhanced electrical conductivity with excellent processability in bending. The copper alloy comprises 0.01-1.0% iron, 0.01-0.4% phosphorus, 0.1-1.0% magnesium, and copper and unavoidable impurities as the remainder. In the copper alloy, the sizes of the oxide, crystals, and precipitate of magnesium contained in the copper alloy have been regulated so that the amount of magnesium which is contained in an extraction residue resulting from extraction/separation by a specific extraction residue method and is determined by a specific determination method is 60% or smaller based on the amount of magnesium contained in the copper alloy. This copper alloy can hence combine high strength with excellent processability in bending.
Inventors:
ARUGA YASUHIRO (JP)
KAJIHARA KATSURA (JP)
KUDO TAKESHI (JP)
KAJIHARA KATSURA (JP)
KUDO TAKESHI (JP)
Application Number:
PCT/JP2006/312252
Publication Date:
January 18, 2007
Filing Date:
June 19, 2006
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
ARUGA YASUHIRO (JP)
KAJIHARA KATSURA (JP)
KUDO TAKESHI (JP)
ARUGA YASUHIRO (JP)
KAJIHARA KATSURA (JP)
KUDO TAKESHI (JP)
International Classes:
C22C9/00; B21B3/00; B22D11/00; C22C9/02; C22C9/04; C22C9/06; C22F1/08
Foreign References:
| EP0769563A1 | 1997-04-23 | |||
| JP2002294364A | 2002-10-09 | |||
| JP2000328157A | 2000-11-28 | |||
| JP2005206891A | 2005-08-04 | |||
| JPH02111829A | 1990-04-24 | |||
| JPH06235035A | 1994-08-23 | |||
| JP2001279347A | 2001-10-10 | |||
| JP2005133185A | 2005-05-26 | |||
| JPH10265873A | 1998-10-06 | |||
| JP2000104131A | 2000-04-11 | |||
| JP2005133186A | 2005-05-26 | |||
| JP2002339028A | 2002-11-27 | |||
| JP2000328157A | 2000-11-28 |
Other References:
ARUGA Y. ET AL.: "Chushutsu Zansa Bunsekiho ni yoru Cu-Fe-P-kei Gokin no Nanka Tokusei ni Eikyo o Oyobosu Bunsan Ryushiryo no Hyoka", COPPER AND COPPER ALLOY, vol. 43, no. 1, 2004, pages 74 - 78, XP003007685
ARUGA Y. ET AL.: "Leadframe-yo Cu-Fe-P-kei Gokin no Nanka Tokusei ni Oyobosu Bunsan Ryushiryo no Eikyo", KOBE STEEL ENGINEERING REPORTS, vol. 55, no. 1, 1 April 2005 (2005-04-01), pages 37 - 40, XP003007686
See also references of EP 1918390A4
KOBE STEELMAKING TECHNICAL REPORT, vol. 52, no. 2, September 2002 (2002-09-01), pages 66 - 70
"Shugo Soshik", MARUZEN K.K.
"Keikinzoku", vol. 43, 1993, KEIKINZOKU GAKKAI, pages: 285 - 293
ARUGA Y. ET AL.: "Leadframe-yo Cu-Fe-P-kei Gokin no Nanka Tokusei ni Oyobosu Bunsan Ryushiryo no Eikyo", KOBE STEEL ENGINEERING REPORTS, vol. 55, no. 1, 1 April 2005 (2005-04-01), pages 37 - 40, XP003007686
See also references of EP 1918390A4
KOBE STEELMAKING TECHNICAL REPORT, vol. 52, no. 2, September 2002 (2002-09-01), pages 66 - 70
"Shugo Soshik", MARUZEN K.K.
"Keikinzoku", vol. 43, 1993, KEIKINZOKU GAKKAI, pages: 285 - 293
Attorney, Agent or Firm:
KAWAMIYA, Osamu et al. (IMP Building 3-7, Shiromi 1-chome, Chuo-ku, Osaka-sh, Osaka 01, JP)
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