http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101351959-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D8-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D1-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D6-008 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D8-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D9-46 |
| filingDate | 2011-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101351959-B1 |
| titleOfInvention | Productive method for producing oriented electrical steel sheet and oriented electrical steel sheet manufactured by the method |
| abstract | The present invention relates to a method for producing a grain-oriented electrical steel sheet having excellent productivity and a grain-oriented electrical steel sheet produced by the method, Si: 2.0 to 4.0%, acid-soluble Al: 0.02 to 0.04%, Mn: 0.2% or less , S: 0.005% or less, S: 0.005% or less and reheat the slab composed of the remaining Fe and unavoidable impurities at a temperature of 1050 ~ 1150 ℃, hot rolled, after which the hot rolled sheet annealing is omitted or done, and then cold rolled Annealing is carried out after the cold rolling to form a mixed gas atmosphere of ammonia, hydrogen and nitrogen, and performs primary recrystallization annealing, decarburization and nitriding annealing, and secondary recrystallization annealing at a temperature of 800 to 950 ° C. It provides a method for producing a grain-oriented electrical steel sheet excellent in productivity. According to the present invention, by increasing the cumulative reduction rate at high temperatures during the hot rolling process and by controlling the C content low in the steelmaking step, the primary recrystallization temperature is increased while omitting the decarburization process to make the primary recrystallization grains large and uniform. In the final high temperature annealing process, the temperature increase rate can be increased, and thus, productivity and magnetism can be improved simultaneously. |
| priorityDate | 2011-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.