COPPER ALLOY STRIP EXHIBITING IMPROVED DIMENSIONAL ACCURACY AFTER PRESS-WORKING

Title:

COPPER ALLOY STRIP EXHIBITING IMPROVED DIMENSIONAL ACCURACY AFTER PRESS-WORKING

Document Type and Number:

WIPO Patent Application WO/2018/174081

Kind Code:

A1

Abstract:

Provided is a Corson alloy which exhibits excellent bending workability while simultaneously exhibiting high dimensional accuracy after press-working. A copper alloy strip which is rolled stock containing Ni in the amount of 0-5.0 mass% or Co in the amount of 0-2.5 mass%, a combined Ni+Co amount of 0.2-5 mass%, and Si in the amount of 0.2-1.5 mass%, with the remainder constituting copper and inevitable impurities, wherein: 1.0≤I(200)/I0(200)<5.0 on the surface of the rolled stock; the area ratio of the cube {100}<001> component of a cross-section parallel to the rolling direction is 2-10% according to EBSD measurement; and (the average crystal diameter of the cube {100}<001> component of the cross-section parallel to the rolling direction)/(the average crystal diameter of the cross-section parallel to the rolling direction) is 0.75-1.5.

Inventors:

KAKITANI AKIHIRO (JP)
IMAMURA HIRONORI (JP)

Application Number:

PCT/JP2018/011147

Publication Date:

September 27, 2018

Filing Date:

March 20, 2018

Export Citation:

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Assignee:

JX NIPPON MINING & METALS CORP (JP)

International Classes:

C22C9/06; C22C9/00; C22C9/10; C22F1/08; C22F1/00

Domestic Patent References:

WO2009148101A1	2009-12-10
WO2013145824A1	2013-10-03
WO2011068121A1	2011-06-09
WO2011068134A1	2011-06-09
WO2011068134A1	2011-06-09

Foreign References:

JP2010275622A	2010-12-09
JP2011012321A	2011-01-20
JP2012246549A	2012-12-13
JP2013163853A	2013-08-22
JP2006283059A	2006-10-19
JP2010275622A	2010-12-09
JP2011017072A	2011-01-27
JP4857395B1	2012-01-18
JP2012177152A	2012-09-13
JP2013227642A	2013-11-07

Other References: