Production process for sintered Fe-Co type magetic materials
US5098648A · kind A · utility
7Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1991 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Jun 13, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0285
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein is an economical process for the production of a sintered Fe-Co type, Fe-Co-V type or Fe-Co-Cr type magnetic material, which comprises preparing an alloy powder of at least Fe and Co metals of a like powder, kneading it with an organic binder, conducting injection molding and debinding, and then conducting a two-stage sintering treatment consisting of low-temperature sintering and high-temperature sintering. Magnetic materials having a specific composition of the Fe-Co, Fe-Co-V or Fe-Co-Cr type and excellent magnetic properties and a low core loss value are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.