Aluminum alloy wire, aluminum alloy strand wire, covered electrical wire, and terminal-equipped electrical wire
US10553328B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 28, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Aug 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B13/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aluminum alloy wire is composed of an aluminum alloy. The aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer crystallization measurement region in a shape of a rectangle having a short side length of 50 μm and a long side length of 75 μm is defined within a surface layer region extending from a surface of the aluminum alloy wire by 50 μm in a depth direction, and an average area of crystallized materials in the surface-layer crystallization measurement region is equal to or more than 0.05 μm2 and equal to or less than 3 μm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.