http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2205230-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dfdc38e0983c1cb9e807c5b49da9024e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21C5-04 |
| filingDate | 2001-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c16e57b94f0e319ba453f52ade9bb05a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7c79439b911b5b2443baaa5d5dd2ecc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c68224eb5b1301da4a8cb91ff4399c8a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9ab092ec34219446c27cf28bcd77346 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63111d1f00bb9ffc4b944ca6f091aae1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e23ea2120b31b5f59f0440721612181 |
| publicationDate | 2003-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2205230-C2 |
| titleOfInvention | Method for steel melting in hearth-type melting unit |
| abstract | FIELD: ferrous metallurgy. SUBSTANCE: method involves charging furnace with lime and/or dolomitized lime used as calcium-containing bulk slag-forming materials in an amount of 10-40 kg/ton of metal burden; feeding layer of semi-finished composite material comprising oxidized iron-containing and carbon-containing materials poured with iron-carbon melt; providing layer-by-layer feeding of metal burden; melting burden; finishing and discharge of melt; maintaining carbon and oxygen concentration ratio in semi-finished material within the range of 1-4; selecting consumption rate thereof provided that oxygen is introduced into burden in an amount of 0.25-2.5 wt%; additionally introducing lime and/or dolomitized lime into furnace working space in an amount of 3.5-15 kg/ton of metal burden, with total consumption of calcium-containing materials in furnace in terms of CaO within the range of 7-30 kg/ton of metal burden. Solid semi-finished material may additionally contain calcium or calcium-magnesium-containing material at the following component ratio, wt%: oxidized iron-containing material 2- 15; carbon-containing material 0.1-2.0; calcium or calcium-magnesium-containing material 0.5-20.0; iron-carbon melt the balance. Method allows charging time to be reduced, stable carbon content in metal during melting to be provided and soft melting to be eliminated. EFFECT: intensified slag forming process, reduced power consumption, improved deformation and increased strength of furnace lining. 5 cl, 2 tbl |
| priorityDate | 2001-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.