PRODUCTION OF HIGH TOUGHNESS STEEL
PURPOSE:To produce a steel having excellent toughness at high productivity by starting rolling after holding the solidified steel to the specific temp. more than the lower limit temp., which is possible to recrystallize to austenitic structure, for the specific time, and completing the rolling havin...
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| creator | KURIHARA KAZUHISA HAJI TOSHIAKI |
| description | PURPOSE:To produce a steel having excellent toughness at high productivity by starting rolling after holding the solidified steel to the specific temp. more than the lower limit temp., which is possible to recrystallize to austenitic structure, for the specific time, and completing the rolling having the specific rolling reduction ratio at more than the specific temp. after executing the specific rolling. CONSTITUTION:After casting and solidifying the molten steel, the steel is held at more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and =5min during being at >=Ar3 point temp. After that, the rolling is started at the temp. more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and the rolling is executed at >=10% of casting thickness. The rolling of >=2 rolling reduction ratio containing this rolling is completed at >=Ar3 point temp. To the steel, 0.005-0.20wt.% C, 0.001-0.025% S, 0. 01-0.80% Si, |
| format | Patent |
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CONSTITUTION:After casting and solidifying the molten steel, the steel is held at more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and <=1300 deg.C for >=5min during being at >=Ar3 point temp. After that, the rolling is started at the temp. more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and the rolling is executed at >=10% of casting thickness. The rolling of >=2 rolling reduction ratio containing this rolling is completed at >=Ar3 point temp. To the steel, 0.005-0.20wt.% C, 0.001-0.025% S, 0. 01-0.80% Si, <=0.1, Al, 0.20-2.00% Mn are contained. Further, Nb, Ti, Cu, Zr, etc., may be contained. By this method, the steel having excellent toughness can be produced at high productivity.</description><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PUNCHING METAL ; ROLLING OF METAL ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1990</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=19900216&DB=EPODOC&CC=JP&NR=H0247218A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900216&DB=EPODOC&CC=JP&NR=H0247218A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KURIHARA KAZUHISA</creatorcontrib><creatorcontrib>HAJI TOSHIAKI</creatorcontrib><title>PRODUCTION OF HIGH TOUGHNESS STEEL</title><description>PURPOSE:To produce a steel having excellent toughness at high productivity by starting rolling after holding the solidified steel to the specific temp. more than the lower limit temp., which is possible to recrystallize to austenitic structure, for the specific time, and completing the rolling having the specific rolling reduction ratio at more than the specific temp. after executing the specific rolling. CONSTITUTION:After casting and solidifying the molten steel, the steel is held at more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and <=1300 deg.C for >=5min during being at >=Ar3 point temp. After that, the rolling is started at the temp. more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and the rolling is executed at >=10% of casting thickness. The rolling of >=2 rolling reduction ratio containing this rolling is completed at >=Ar3 point temp. To the steel, 0.005-0.20wt.% C, 0.001-0.025% S, 0. 01-0.80% Si, <=0.1, Al, 0.20-2.00% Mn are contained. Further, Nb, Ti, Cu, Zr, etc., may be contained. By this method, the steel having excellent toughness can be produced at high productivity.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>ROLLING OF METAL</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAKCPJ3CXUO8fT3U_B3U_DwdPdQCPEPdffwcw0OVggOcXX14WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgZGJuZGhhaOxkQoAQAE6yJS</recordid><startdate>19900216</startdate><enddate>19900216</enddate><creator>KURIHARA KAZUHISA</creator><creator>HAJI TOSHIAKI</creator><scope>EVB</scope></search><sort><creationdate>19900216</creationdate><title>PRODUCTION OF HIGH TOUGHNESS STEEL</title><author>KURIHARA KAZUHISA ; HAJI TOSHIAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0247218A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>ROLLING OF METAL</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>KURIHARA KAZUHISA</creatorcontrib><creatorcontrib>HAJI TOSHIAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KURIHARA KAZUHISA</au><au>HAJI TOSHIAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PRODUCTION OF HIGH TOUGHNESS STEEL</title><date>1990-02-16</date><risdate>1990</risdate><abstract>PURPOSE:To produce a steel having excellent toughness at high productivity by starting rolling after holding the solidified steel to the specific temp. more than the lower limit temp., which is possible to recrystallize to austenitic structure, for the specific time, and completing the rolling having the specific rolling reduction ratio at more than the specific temp. after executing the specific rolling. CONSTITUTION:After casting and solidifying the molten steel, the steel is held at more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and <=1300 deg.C for >=5min during being at >=Ar3 point temp. After that, the rolling is started at the temp. more than the lower limit temp., which is possible to recrystallize to the austenitic structure, and the rolling is executed at >=10% of casting thickness. The rolling of >=2 rolling reduction ratio containing this rolling is completed at >=Ar3 point temp. To the steel, 0.005-0.20wt.% C, 0.001-0.025% S, 0. 01-0.80% Si, <=0.1, Al, 0.20-2.00% Mn are contained. Further, Nb, Ti, Cu, Zr, etc., may be contained. By this method, the steel having excellent toughness can be produced at high productivity.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | PRODUCTION OF HIGH TOUGHNESS STEEL |
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