PRODUCTION OF STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS
PURPOSE:To form the finer grains of solidified gamma and to improve toughness by rolling a molten steel of
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| creator | KURIHARA KAZUHISA HAJI TOSHIAKI |
| description | PURPOSE:To form the finer grains of solidified gamma and to improve toughness by rolling a molten steel of |
| format | Patent |
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CONSTITUTION:The compsn. of the molten steel is formed to contain, by weight, 0.005 to 0.10% C, <=0.025% S, 0.01 to 0.80% Si, <=0.1% Al and 0.20 to 2.00% Mn, and is composed of the balance iron and unavoidable impurities. After the molten steel is cast and solidified, the molten steel is held for >=5 minutes at the temp. above the recrystallizable lower limit temp. of austenite and below 1300 deg.C while the steel is at above the Ar2 point temp. and is then subjected to rolling of >=10% of the casting thickness in the temp. region above the recrystallizable lower limit temp. of austenite. As a result, the finer grains of the solidified gamma are formed and the steel material having the excellent low- temp. toughness are produced.</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=19900808&DB=EPODOC&CC=JP&NR=H02200304A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900808&DB=EPODOC&CC=JP&NR=H02200304A$$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 STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS</title><description>PURPOSE:To form the finer grains of solidified gamma and to improve toughness by rolling a molten steel of <=0.10C under specific conditions. CONSTITUTION:The compsn. of the molten steel is formed to contain, by weight, 0.005 to 0.10% C, <=0.025% S, 0.01 to 0.80% Si, <=0.1% Al and 0.20 to 2.00% Mn, and is composed of the balance iron and unavoidable impurities. After the molten steel is cast and solidified, the molten steel is held for >=5 minutes at the temp. above the recrystallizable lower limit temp. of austenite and below 1300 deg.C while the steel is at above the Ar2 point temp. and is then subjected to rolling of >=10% of the casting thickness in the temp. region above the recrystallizable lower limit temp. of austenite. As a result, the finer grains of the solidified gamma are formed and the steel material having the excellent low- temp. toughness are produced.</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>eNqNyjEKwjAUANAsDqLe4XuAQmi9wCf-JpE0CclPdStF4iRaqPfHxQM4veVthY4pnItiGzyEHjITORiQKVl0YHC0XgPdFDlHnsGFa8M0RErIJRFwKNp4ynkvNo_5udbDz5049sTKNHV5T3Vd5nt91c90iUa2rZSdPGH3z_kCDmYtHA</recordid><startdate>19900808</startdate><enddate>19900808</enddate><creator>KURIHARA KAZUHISA</creator><creator>HAJI TOSHIAKI</creator><scope>EVB</scope></search><sort><creationdate>19900808</creationdate><title>PRODUCTION OF STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS</title><author>KURIHARA KAZUHISA ; HAJI TOSHIAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH02200304A3</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 STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS</title><date>1990-08-08</date><risdate>1990</risdate><abstract>PURPOSE:To form the finer grains of solidified gamma and to improve toughness by rolling a molten steel of <=0.10C under specific conditions. CONSTITUTION:The compsn. of the molten steel is formed to contain, by weight, 0.005 to 0.10% C, <=0.025% S, 0.01 to 0.80% Si, <=0.1% Al and 0.20 to 2.00% Mn, and is composed of the balance iron and unavoidable impurities. After the molten steel is cast and solidified, the molten steel is held for >=5 minutes at the temp. above the recrystallizable lower limit temp. of austenite and below 1300 deg.C while the steel is at above the Ar2 point temp. and is then subjected to rolling of >=10% of the casting thickness in the temp. region above the recrystallizable lower limit temp. of austenite. As a result, the finer grains of the solidified gamma are formed and the steel material having the excellent low- temp. toughness are produced.</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 STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS |
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