Method for producing soft magnetic powdered core
US8062583B2 · kind B2 · utility
1Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Mar 17, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Aug 25, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for producing a soft magnetic powdered core includes preparing a mixture of a soft magnetic powder and a resin powder, compacting the mixture into a predetermined shape so as to obtain a compact, and heating the compact. The resin powder has a median size of not more than 30 μm, a maximum particle size of not more than 100 μm, and a specific surface area of not less than 1.0 m2/cm3, and the additive amount thereof is 0.005 to 2 vol %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.