Copper alloy wire rod and method for manufacturing the same
US9754703B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 19, 2014 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Jul 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/026
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A copper alloy wire rod includes a copper parent phase and short fiber-shaped composite phases which are dispersed in the copper parent phase and which contain Cu8Zr3 and Cu, wherein the content of Zr is within the range of 0.2 atomic percent or more and 1.0 atomic percent or less. This copper alloy wire rod can be obtained by including the steps of melting a raw material in such a way that a copper alloy having a Zr content within the above-described range of is produced so as to obtain a molten metal in a melting step, casting the molten metal so as to obtain an ingot in a casting step, and subjecting the ingot to cold wire drawing in a wire drawing step, wherein the wire drawing step and a treatment after the wire drawing step are performed at lower than 500° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.