Aluminum alloy wire rod and producing method thereof
US10920306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/023
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy wire rod has a chemical composition consisting of 0.1 to 1.0 mass % of Co, 0.2 to 0.5 mass % of Zr, 0.02 to 0.09 mass % of Fe, 0.02 to 0.09 mass % of Si, 0 to 0.2 mass % of Mg, 0 to 0.10 mass % of Ti, 0 to 0.03 mass % of B, 0 to 1.00 mass % of Cu, 0 to 0.50 mass % of Ag, 0 to 0.50 mass % of Au, 0 to 1.00 mass % of Mn, 0 to 1.00 mass % of Cr, 0 to 0.50 mass % of Hf, 0 to 0.50 mass % of V, 0 to 0.50 mass % of Sc, 0 to 0.50 mass % of Ni, the balance being Al and inevitable impurities, and a metal structure including Al crystal grains, an Al—Co—Fe compound and an Al—Zr compound. The Al crystal grains having a crystal grain diameter of 10 μm or less have an area ratio of 90% or more. The wire rod has a tensile strength of 150 MPa or more, an electrical conductivity of 55% IACS or more and when heated at 200 deg C. for 10 years, a strength of 90% or more of its initial state strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.