METHOD FOR ADJUSTING OVERHEATING DEGREE OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD

METHOD FOR ADJUSTING OVERHEATING DEGREE OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD

PURPOSE:To drastically reduce the unevenness in overheating degree of the molten steel in a mold in continuous casting and to stabilize the quality of a steel slab. CONSTITUTION:In a method for holding the molten steel overheating degree DELTAT mold on the molten steel surface in the mold in the con...

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Hauptverfasser: AKEMIYA TOORU, HITOMI YASUO
Format: Patent
Sprache:eng
Schlagworte:
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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creator AKEMIYA TOORU
HITOMI YASUO
description PURPOSE:To drastically reduce the unevenness in overheating degree of the molten steel in a mold in continuous casting and to stabilize the quality of a steel slab. CONSTITUTION:In a method for holding the molten steel overheating degree DELTAT mold on the molten steel surface in the mold in the continuous casting to the constant, the molten steel overheating degree DELTAT mold on the molten steel surface in the mold is estimated by the following equation and the estimated molten steel overheating degree DELTAT mold on the molten steel surface in the mold and the preset molten steel overheating degree are compared and by changing the powder brand and automatically changing nozzle dipping depth, the molten steel overheating degree DELTAT mold in the mold in the continuous casting is adjusted. DELTAT mold=A(DELTATt)+B(Vc)+C(EMS)+D(Ph)+E(Nd), Wherein, A-E: coefficients obtd. from regression equation, DELTATt: the molten steel overheating degree in the tundish ( deg.C), Vc: casting velocity (mm/min), EMS: intensity of electromagnetic stirring (A), Ph: calorific heat of exothermic powder (kcal), Nd: nozzle dipping depth (mm).
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CONSTITUTION:In a method for holding the molten steel overheating degree DELTAT mold on the molten steel surface in the mold in the continuous casting to the constant, the molten steel overheating degree DELTAT mold on the molten steel surface in the mold is estimated by the following equation and the estimated molten steel overheating degree DELTAT mold on the molten steel surface in the mold and the preset molten steel overheating degree are compared and by changing the powder brand and automatically changing nozzle dipping depth, the molten steel overheating degree DELTAT mold in the mold in the continuous casting is adjusted. DELTAT mold=A(DELTATt)+B(Vc)+C(EMS)+D(Ph)+E(Nd), Wherein, A-E: coefficients obtd. from regression equation, DELTATt: the molten steel overheating degree in the tundish ( deg.C), Vc: casting velocity (mm/min), EMS: intensity of electromagnetic stirring (A), Ph: calorific heat of exothermic powder (kcal), Nd: nozzle dipping depth (mm).</description><edition>5</edition><language>eng</language><subject>CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING</subject><creationdate>1994</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&amp;date=19940906&amp;DB=EPODOC&amp;CC=JP&amp;NR=H06246406A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19940906&amp;DB=EPODOC&amp;CC=JP&amp;NR=H06246406A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>AKEMIYA TOORU</creatorcontrib><creatorcontrib>HITOMI YASUO</creatorcontrib><title>METHOD FOR ADJUSTING OVERHEATING DEGREE OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD</title><description>PURPOSE:To drastically reduce the unevenness in overheating degree of the molten steel in a mold in continuous casting and to stabilize the quality of a steel slab. CONSTITUTION:In a method for holding the molten steel overheating degree DELTAT mold on the molten steel surface in the mold in the continuous casting to the constant, the molten steel overheating degree DELTAT mold on the molten steel surface in the mold is estimated by the following equation and the estimated molten steel overheating degree DELTAT mold on the molten steel surface in the mold and the preset molten steel overheating degree are compared and by changing the powder brand and automatically changing nozzle dipping depth, the molten steel overheating degree DELTAT mold in the mold in the continuous casting is adjusted. DELTAT mold=A(DELTATt)+B(Vc)+C(EMS)+D(Ph)+E(Nd), Wherein, A-E: coefficients obtd. from regression equation, DELTATt: the molten steel overheating degree in the tundish ( deg.C), Vc: casting velocity (mm/min), EMS: intensity of electromagnetic stirring (A), Ph: calorific heat of exothermic powder (kcal), Nd: nozzle dipping depth (mm).</description><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAjydQ3x8HdRcPMPUnB08QoNDvH0c1fwD3MN8nB1BLNdXN2DXF0V_N0UfP19Qlz9FIJDXF19FDz9FJz9_YAqQv1DgxWcHSEagUpceBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFeAh4GZkYmZiYGZozExagDW6C_Q</recordid><startdate>19940906</startdate><enddate>19940906</enddate><creator>AKEMIYA TOORU</creator><creator>HITOMI YASUO</creator><scope>EVB</scope></search><sort><creationdate>19940906</creationdate><title>METHOD FOR ADJUSTING OVERHEATING DEGREE OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD</title><author>AKEMIYA TOORU ; HITOMI YASUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH06246406A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>AKEMIYA TOORU</creatorcontrib><creatorcontrib>HITOMI YASUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>AKEMIYA TOORU</au><au>HITOMI YASUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR ADJUSTING OVERHEATING DEGREE OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD</title><date>1994-09-06</date><risdate>1994</risdate><abstract>PURPOSE:To drastically reduce the unevenness in overheating degree of the molten steel in a mold in continuous casting and to stabilize the quality of a steel slab. CONSTITUTION:In a method for holding the molten steel overheating degree DELTAT mold on the molten steel surface in the mold in the continuous casting to the constant, the molten steel overheating degree DELTAT mold on the molten steel surface in the mold is estimated by the following equation and the estimated molten steel overheating degree DELTAT mold on the molten steel surface in the mold and the preset molten steel overheating degree are compared and by changing the powder brand and automatically changing nozzle dipping depth, the molten steel overheating degree DELTAT mold in the mold in the continuous casting is adjusted. DELTAT mold=A(DELTATt)+B(Vc)+C(EMS)+D(Ph)+E(Nd), Wherein, A-E: coefficients obtd. from regression equation, DELTATt: the molten steel overheating degree in the tundish ( deg.C), Vc: casting velocity (mm/min), EMS: intensity of electromagnetic stirring (A), Ph: calorific heat of exothermic powder (kcal), Nd: nozzle dipping depth (mm).</abstract><edition>5</edition><oa>free_for_read</oa></addata></record>
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subjects CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
title METHOD FOR ADJUSTING OVERHEATING DEGREE OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD
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