Title:
プレス加工後の寸法精度を改善した銅合金条
Document Type and Number:
Japanese Patent JP6440760
Kind Code:
B2
Abstract:
Provided is a Corson alloy having improved bending workability and also having high dimensional accuracy after press-working. A copper alloy strip which is a rolling material, the rolling material containing from 0 to 5.0% by mass of Ni or from 0 to 2.5% by mass of Co, the total amount of Ni + Co being from 0.2 to 5% by mass; from 0.2 to 1.5% by mass of Si, the balance being copper and unavoidable impurities, wherein the rolling material satisfies the relationship: A0/A ≤ 1.000, in which A0represents a projected area of an indentation remaining after carrying out a Vickers hardness test by maintaining a square pyramidal indenter for 10 seconds while applying a test force with a load of 1 kg to a surface of a base material and releasing the test force; and A represents an area connecting vertices of the indenter, and wherein the rolling material satisfies the relationship: 0.1 ≤ I(200)/I0(200)< 1.0, in which I(200)represents an X-ray diffraction intensity from a (200) plane on the surface, and I0(200)represents an X-ray diffraction intensity from a (200) plane of a pure copper powder standard sample.
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Inventors:
Akihiro Kakitani
Application Number:
JP2017054877A
Publication Date:
December 19, 2018
Filing Date:
March 21, 2017
Export Citation:
Assignee:
JX Nippon Mining & Metals Co., Ltd.
International Classes:
C22C9/06; C22C9/00; C22C9/02; C22C9/04; C22C9/05; C22C9/10; H01B1/02; H01B5/02
Domestic Patent References:
| JP2013227600A | ||||
| JP2015086416A | ||||
| JP2013104082A |
Foreign References:
| WO2015146981A1 | ||||
| WO2015099098A1 |
Attorney, Agent or Firm:
Axis International Patent Business Corporation
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