Production method for soft magnetic sintered member
US7470332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Aug 6, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A soft magnetic sintered member having uniform dispersion of alloy elements and a production method for the same at low cost are provided. The soft magnetic sintered member consists of, all in mass %, 2.9 to 7% of Cr; 1.5 to 6.88% of Si; and the balance of Fe and inevitable impurities. The production method for a soft magnetic sintered member includes: preparing an Fe alloy powder consisting of 3 to 7 mass % of Cr, 1.5 to 3.5 mass % of Si, and the balance of Fe and inevitable impurities; or a mixed powder in which the Fe alloy powder is mixed with an Si powder having an average particle size of 1 to 45 μm. The production method further includes: compacting the Fe alloy powder or the mixed powder into a green compact having a predetermined shape; and sintering the green compact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.