STEEL PRODUCING METHOD IN ELECTRIC ARC STEEL MELTING FURNACE
FIELD: ferrous metallurgy, namely processes for producing steels in electric arc steel melting furnace. ^ SUBSTANCE: method comprises steps of charging metal scrap into electric arc steel melting furnace and pouring cast iron; melting metal charge and oxidizing carbon by means of gaseous oxygen; dep...
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| creator | KOZYREV NIKOLAJ ANATOL'EVICH OBSHAROV MIKHAIL VLADIMIROVICH KUZNETSOV EVGENIJ PAVLOVICH ORZHEKH MIKHAIL BORISOVICH PAVLOV VJACHESLAV VLADIMIROVICH BOTNEV KONSTANTIN EVGEN'EVICH SYCHEV PAVEL EVGEN'EVICH GODIK LEONID ALEKSANDROVICH TIMMERMAN NATAL'JA NIKOLAEVNA |
| description | FIELD: ferrous metallurgy, namely processes for producing steels in electric arc steel melting furnace. ^ SUBSTANCE: method comprises steps of charging metal scrap into electric arc steel melting furnace and pouring cast iron; melting metal charge and oxidizing carbon by means of gaseous oxygen; dephosphorizing steel by adding iron ore or agglomerate and lime; in order to add lime, adding mixture containing ferruginous lime-magnesia flux and lime at relation of flux to lime (0.15 -0.50):1 in quantity 2.5 -4.0% of melt mass till achieving concentration of MgO equal to (8 - 15)%, CaO equal to (35 - 55)% in slag. In order to provide concentration of FeO no less than 15%, gaseous oxygen is blown. Slag is drawn off through lip of working window and steel is poured to ladle. At pouring steel furnace slag is removed. Lime in quantity 1.7 - 2.5% of mass of melt steel, necessary killing and alloying components are added to ladle. ^ EFFECT: improved strength of lining, increased degree of dephosphorization, lowered consumption of ferroalloys. |
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In order to provide concentration of FeO no less than 15%, gaseous oxygen is blown. Slag is drawn off through lip of working window and steel is poured to ladle. At pouring steel furnace slag is removed. Lime in quantity 1.7 - 2.5% of mass of melt steel, necessary killing and alloying components are added to ladle. ^ EFFECT: improved strength of lining, increased degree of dephosphorization, lowered consumption of ferroalloys.</description><language>eng ; rus</language><subject>CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060210&DB=EPODOC&CC=RU&NR=2269577C1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060210&DB=EPODOC&CC=RU&NR=2269577C1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOZYREV NIKOLAJ ANATOL'EVICH</creatorcontrib><creatorcontrib>OBSHAROV MIKHAIL VLADIMIROVICH</creatorcontrib><creatorcontrib>KUZNETSOV EVGENIJ PAVLOVICH</creatorcontrib><creatorcontrib>ORZHEKH MIKHAIL BORISOVICH</creatorcontrib><creatorcontrib>PAVLOV VJACHESLAV VLADIMIROVICH</creatorcontrib><creatorcontrib>BOTNEV KONSTANTIN EVGEN'EVICH</creatorcontrib><creatorcontrib>SYCHEV PAVEL EVGEN'EVICH</creatorcontrib><creatorcontrib>GODIK LEONID ALEKSANDROVICH</creatorcontrib><creatorcontrib>TIMMERMAN NATAL'JA NIKOLAEVNA</creatorcontrib><title>STEEL PRODUCING METHOD IN ELECTRIC ARC STEEL MELTING FURNACE</title><description>FIELD: ferrous metallurgy, namely processes for producing steels in electric arc steel melting furnace. ^ SUBSTANCE: method comprises steps of charging metal scrap into electric arc steel melting furnace and pouring cast iron; melting metal charge and oxidizing carbon by means of gaseous oxygen; dephosphorizing steel by adding iron ore or agglomerate and lime; in order to add lime, adding mixture containing ferruginous lime-magnesia flux and lime at relation of flux to lime (0.15 -0.50):1 in quantity 2.5 -4.0% of melt mass till achieving concentration of MgO equal to (8 - 15)%, CaO equal to (35 - 55)% in slag. In order to provide concentration of FeO no less than 15%, gaseous oxygen is blown. Slag is drawn off through lip of working window and steel is poured to ladle. At pouring steel furnace slag is removed. Lime in quantity 1.7 - 2.5% of mass of melt steel, necessary killing and alloying components are added to ladle. ^ EFFECT: improved strength of lining, increased degree of dephosphorization, lowered consumption of ferroalloys.</description><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAJDnF19VEICPJ3CXX29HNX8HUN8fB3UfD0U3D1cXUOCfJ0VnAMclaAKPN19QkBKXILDfJzdHblYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxQaFGRmaWpubmzobGRCgBAKW6KTE</recordid><startdate>20060210</startdate><enddate>20060210</enddate><creator>KOZYREV NIKOLAJ ANATOL'EVICH</creator><creator>OBSHAROV MIKHAIL VLADIMIROVICH</creator><creator>KUZNETSOV EVGENIJ PAVLOVICH</creator><creator>ORZHEKH MIKHAIL BORISOVICH</creator><creator>PAVLOV VJACHESLAV VLADIMIROVICH</creator><creator>BOTNEV KONSTANTIN EVGEN'EVICH</creator><creator>SYCHEV PAVEL EVGEN'EVICH</creator><creator>GODIK LEONID ALEKSANDROVICH</creator><creator>TIMMERMAN NATAL'JA NIKOLAEVNA</creator><scope>EVB</scope></search><sort><creationdate>20060210</creationdate><title>STEEL PRODUCING METHOD IN ELECTRIC ARC STEEL MELTING FURNACE</title><author>KOZYREV NIKOLAJ ANATOL'EVICH ; 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melting metal charge and oxidizing carbon by means of gaseous oxygen; dephosphorizing steel by adding iron ore or agglomerate and lime; in order to add lime, adding mixture containing ferruginous lime-magnesia flux and lime at relation of flux to lime (0.15 -0.50):1 in quantity 2.5 -4.0% of melt mass till achieving concentration of MgO equal to (8 - 15)%, CaO equal to (35 - 55)% in slag. In order to provide concentration of FeO no less than 15%, gaseous oxygen is blown. Slag is drawn off through lip of working window and steel is poured to ladle. At pouring steel furnace slag is removed. Lime in quantity 1.7 - 2.5% of mass of melt steel, necessary killing and alloying components are added to ladle. ^ EFFECT: improved strength of lining, increased degree of dephosphorization, lowered consumption of ferroalloys.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS |
| title | STEEL PRODUCING METHOD IN ELECTRIC ARC STEEL MELTING FURNACE |
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