Heat treating of magnetic iron powder
US5798177A · kind A · utility
14Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Oct 11, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method of compacting and heat-treating iron powders in order to obtain magnetic core components having improved soft magnetic properties. The iron powder consists of fine particles which are insulated by a thin layer having a low phosphorous content. According to the invention, the compacted iron powder is subjected to heat treatment at a temperature between 350.degree. and 550.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.