http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20000067821-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-0577 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F41-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-057 |
| filingDate | 1999-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2000-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20000067821-A |
| titleOfInvention | Method for the preparation of a rare earth permanent magnet |
| abstract | The present invention provides a method for producing a rare earth permanent magnet by a powder metallurgical process, which comprises, unlike the prior art, compression-molding a magnetic alloy powder into a powder compact, and sintering the powder compact into a sintered magnetic body. As a result, the present invention enables the production of densified sintered compacts and magnetic products with improved magnetic properties. The present invention relates to a first partial sintering process performed in an atmosphere of an inert gas at a vacuum and subatmospheric pressure. It is characterized by consisting of a two-step sintering heat treatment process consisting of two partial sintering treatment. |
| priorityDate | 1998-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.