PRODUCTION OF WIDE-FLANGE SHAPE STEEL EXCELLENT IN TOUGHNESS
PURPOSE:To reduce macro segregation in steel and to improve its toughness by subjecting steel having a specified compsn. to rough rolling to form into a wide-flange shape rough steel slab, subjecting it to air cooling, thereafter executing intermediate rolling and finish rolling and subsequently exe...
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| creator | YOSHIDA TAKU HIROGUCHI TAKATOSHI YAMAMOTO KOICHI EDA KAZUHIKO |
| description | PURPOSE:To reduce macro segregation in steel and to improve its toughness by subjecting steel having a specified compsn. to rough rolling to form into a wide-flange shape rough steel slab, subjecting it to air cooling, thereafter executing intermediate rolling and finish rolling and subsequently executing cooling under specified conditions. CONSTITUTION:Molten steel having a compsn. constituted of, by weight, 0.04 to 0.20% C, 0.05 to 0.50% Si and 0.50 to 1.80% Mn, and the balance Fe with inevitable impurities is subjected to continuous casting. Next, it is heated to the temp range of 1200 to 1300 deg.C and is subjected to rough rolling to form into an wide-flange shape rough steel slab. Then, it is air-cooled for 5 to 10min, is thereafter subjected to intermediate rolling and finish rolling and is cooled to 800 to 500 deg.C at 0.1 to 30 deg.C/min cooling rate. In this way, the wide-flange shape steel having excellent toughness even in the fillet part can be produced. |
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CONSTITUTION:Molten steel having a compsn. constituted of, by weight, 0.04 to 0.20% C, 0.05 to 0.50% Si and 0.50 to 1.80% Mn, and the balance Fe with inevitable impurities is subjected to continuous casting. Next, it is heated to the temp range of 1200 to 1300 deg.C and is subjected to rough rolling to form into an wide-flange shape rough steel slab. Then, it is air-cooled for 5 to 10min, is thereafter subjected to intermediate rolling and finish rolling and is cooled to 800 to 500 deg.C at 0.1 to 30 deg.C/min cooling rate. In this way, the wide-flange shape steel having excellent toughness even in the fillet part can be produced.</description><edition>5</edition><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>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&date=19940506&DB=EPODOC&CC=JP&NR=H06122922A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940506&DB=EPODOC&CC=JP&NR=H06122922A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YOSHIDA TAKU</creatorcontrib><creatorcontrib>HIROGUCHI TAKATOSHI</creatorcontrib><creatorcontrib>YAMAMOTO KOICHI</creatorcontrib><creatorcontrib>EDA KAZUHIKO</creatorcontrib><title>PRODUCTION OF WIDE-FLANGE SHAPE STEEL EXCELLENT IN TOUGHNESS</title><description>PURPOSE:To reduce macro segregation in steel and to improve its toughness by subjecting steel having a specified compsn. to rough rolling to form into a wide-flange shape rough steel slab, subjecting it to air cooling, thereafter executing intermediate rolling and finish rolling and subsequently executing cooling under specified conditions. CONSTITUTION:Molten steel having a compsn. constituted of, by weight, 0.04 to 0.20% C, 0.05 to 0.50% Si and 0.50 to 1.80% Mn, and the balance Fe with inevitable impurities is subjected to continuous casting. Next, it is heated to the temp range of 1200 to 1300 deg.C and is subjected to rough rolling to form into an wide-flange shape rough steel slab. Then, it is air-cooled for 5 to 10min, is thereafter subjected to intermediate rolling and finish rolling and is cooled to 800 to 500 deg.C at 0.1 to 30 deg.C/min cooling rate. 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CONSTITUTION:Molten steel having a compsn. constituted of, by weight, 0.04 to 0.20% C, 0.05 to 0.50% Si and 0.50 to 1.80% Mn, and the balance Fe with inevitable impurities is subjected to continuous casting. Next, it is heated to the temp range of 1200 to 1300 deg.C and is subjected to rough rolling to form into an wide-flange shape rough steel slab. Then, it is air-cooled for 5 to 10min, is thereafter subjected to intermediate rolling and finish rolling and is cooled to 800 to 500 deg.C at 0.1 to 30 deg.C/min cooling rate. In this way, the wide-flange shape steel having excellent toughness even in the fillet part can be produced.</abstract><edition>5</edition><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 WIDE-FLANGE SHAPE STEEL EXCELLENT IN TOUGHNESS |
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