Title:
COPPER ALLOY SHEET AND PRODUCTION METHOD FOR COPPER ALLOY SHEET
Document Type and Number:
WIPO Patent Application WO/2013/039207
Kind Code:
A1
Abstract:
One aspect of this copper alloy sheet is that the sheet contains 4.5-12.0% by mass of Zn, 0.40-0.90% by mass of Sn, 0.01-0.08% by mass of P, as well as 0.005-0.08% by mass of Co and/or 0.03-0.85% by mass of Ni, the remainder comprising Cu and unavoidable impurities, and the copper alloy sheet satisfies the relationship: 11 ≤ [Zn] + 7 × [Sn] + 15 × [P] + 12 × [Co] + 4.5 × [Ni] ≤ 17. One aspect of this copper alloy sheet is that the sheet is produced by a production process comprising a finishing cold-rolling process for cold-rolling copper alloy material, the average crystal particle size of the copper alloy material being 2.0-8.0 µm, circular and oblong-shaped deposits exist in the copper alloy material, and either the average particle size of the deposits is 4.0-25.0 nm or deposits having a particle size of 4.0-25.0 nm make up at least 70% of the deposits.
Inventors:
OISHI KEIICHIRO (JP)
Application Number:
PCT/JP2012/073641
Publication Date:
March 21, 2013
Filing Date:
September 14, 2012
Export Citation:
Assignee:
MITSUBISHI SHINDO KK (JP)
MITSUBISHI MATERIALS CORP (JP)
OISHI KEIICHIRO (JP)
MITSUBISHI MATERIALS CORP (JP)
OISHI KEIICHIRO (JP)
International Classes:
C22C9/04; B21B1/22; B21B3/00; C22F1/08; H01B1/02; C22F1/00
Foreign References:
| JPH06184679A | 1994-07-05 | |||
| JP2000087158A | 2000-03-28 | |||
| JPH01189805A | 1989-07-31 | |||
| JP2002294368A | 2002-10-09 | |||
| JP2006283060A | 2006-10-19 | |||
| JP2002530523A | 2002-09-17 | |||
| JPS63161135A | 1988-07-04 | |||
| JP2007056365A | 2007-03-08 |
Other References:
E. O. HALL, PROC. PHYS. SOC. LONDON, vol. 64, 1951, pages 747
N. J. PETCH, J. IRON STEEL INST., vol. 174, 1953, pages 25
N. J. PETCH, J. IRON STEEL INST., vol. 174, 1953, pages 25
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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Claims: