METHOD FOR IMPROVING INNER QUALITY OF CONTINUOUSLY CAST SLAB BY LARGE ROLLING REDUCTION UNDER UNSOLIDIFIED CONDITION
PURPOSE:To prevent the development of center segregation and center porosity at the time of continuously casting a rectangular cast slab. CONSTITUTION:A flatness ratio of the cast slab 1 is made to be >=1.1. Rolling reduction terminals 4 are arranged at the position (y) satisfying the inequality...
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| creator | KUSANO YOSHIAKI ISOBE KOICHI |
| description | PURPOSE:To prevent the development of center segregation and center porosity at the time of continuously casting a rectangular cast slab. CONSTITUTION:A flatness ratio of the cast slab 1 is made to be >=1.1. Rolling reduction terminals 4 are arranged at the position (y) satisfying the inequality I or the inequality II. Casting velocity is adjusted and the solid phase ratio at the center part in the cross section of the cast slab 1 at the inlet side of the rolling reduction terminals 4 is made to be 0.6-0.95. The rolling reduction terminal 4 having >=200mm radius of curvature in the axial direction of the cast slab at the part executing the rolling reduction to the cast slab 1 is used, and the cast slab is drafted in 5-40% draft in the thickness direction of the cast slab 1 at 80-540mm/min rolling reduction speed. Then, the inquality I and the inquality II are expressed as follows, in the case of 0 |
| format | Patent |
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CONSTITUTION:A flatness ratio of the cast slab 1 is made to be >=1.1. Rolling reduction terminals 4 are arranged at the position (y) satisfying the inequality I or the inequality II. Casting velocity is adjusted and the solid phase ratio at the center part in the cross section of the cast slab 1 at the inlet side of the rolling reduction terminals 4 is made to be 0.6-0.95. The rolling reduction terminal 4 having >=200mm radius of curvature in the axial direction of the cast slab at the part executing the rolling reduction to the cast slab 1 is used, and the cast slab is drafted in 5-40% draft in the thickness direction of the cast slab 1 at 80-540mm/min rolling reduction speed. Then, the inquality I and the inquality II are expressed as follows, in the case of 0<=D<250, 0.02XD<=y (m) <=0.06XD...(1) and in the case of 250<=D, 0.02XD<=y (m) <=0.067X(D-250)+15...(II). Wherein, D: thickness of the cast slab (mm).]]></description><edition>6</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>1995</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=19950829&DB=EPODOC&CC=JP&NR=H07227657A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19950829&DB=EPODOC&CC=JP&NR=H07227657A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUSANO YOSHIAKI</creatorcontrib><creatorcontrib>ISOBE KOICHI</creatorcontrib><title>METHOD FOR IMPROVING INNER QUALITY OF CONTINUOUSLY CAST SLAB BY LARGE ROLLING REDUCTION UNDER UNSOLIDIFIED CONDITION</title><description><![CDATA[PURPOSE:To prevent the development of center segregation and center porosity at the time of continuously casting a rectangular cast slab. CONSTITUTION:A flatness ratio of the cast slab 1 is made to be >=1.1. Rolling reduction terminals 4 are arranged at the position (y) satisfying the inequality I or the inequality II. Casting velocity is adjusted and the solid phase ratio at the center part in the cross section of the cast slab 1 at the inlet side of the rolling reduction terminals 4 is made to be 0.6-0.95. The rolling reduction terminal 4 having >=200mm radius of curvature in the axial direction of the cast slab at the part executing the rolling reduction to the cast slab 1 is used, and the cast slab is drafted in 5-40% draft in the thickness direction of the cast slab 1 at 80-540mm/min rolling reduction speed. Then, the inquality I and the inquality II are expressed as follows, in the case of 0<=D<250, 0.02XD<=y (m) <=0.06XD...(1) and in the case of 250<=D, 0.02XD<=y (m) <=0.067X(D-250)+15...(II). Wherein, D: thickness of the cast slab (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>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjEsKwkAQBbNxIeod2gMIEtGsJ_NJWibdOh8hqxBkXIkGkvujAQ_gqhavXi2zqdGhZgWGHWBzcXxDqgCJtINrFBZDC2xAMgWkyNHbFqTwAbwVJZQtWOEqDY6tnY9OqygDMkEk9U1E8mxRoUGt5ojCeVxni0f_HNPmx1W2NTrIepeGd5fGob-nV5q686XeF3lenI6FOPzjfAD4LzmZ</recordid><startdate>19950829</startdate><enddate>19950829</enddate><creator>KUSANO YOSHIAKI</creator><creator>ISOBE KOICHI</creator><scope>EVB</scope></search><sort><creationdate>19950829</creationdate><title>METHOD FOR IMPROVING INNER QUALITY OF CONTINUOUSLY CAST SLAB BY LARGE ROLLING REDUCTION UNDER UNSOLIDIFIED CONDITION</title><author>KUSANO YOSHIAKI ; ISOBE KOICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH07227657A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</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>KUSANO YOSHIAKI</creatorcontrib><creatorcontrib>ISOBE KOICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUSANO YOSHIAKI</au><au>ISOBE KOICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR IMPROVING INNER QUALITY OF CONTINUOUSLY CAST SLAB BY LARGE ROLLING REDUCTION UNDER UNSOLIDIFIED CONDITION</title><date>1995-08-29</date><risdate>1995</risdate><abstract><![CDATA[PURPOSE:To prevent the development of center segregation and center porosity at the time of continuously casting a rectangular cast slab. CONSTITUTION:A flatness ratio of the cast slab 1 is made to be >=1.1. Rolling reduction terminals 4 are arranged at the position (y) satisfying the inequality I or the inequality II. Casting velocity is adjusted and the solid phase ratio at the center part in the cross section of the cast slab 1 at the inlet side of the rolling reduction terminals 4 is made to be 0.6-0.95. The rolling reduction terminal 4 having >=200mm radius of curvature in the axial direction of the cast slab at the part executing the rolling reduction to the cast slab 1 is used, and the cast slab is drafted in 5-40% draft in the thickness direction of the cast slab 1 at 80-540mm/min rolling reduction speed. Then, the inquality I and the inquality II are expressed as follows, in the case of 0<=D<250, 0.02XD<=y (m) <=0.06XD...(1) and in the case of 250<=D, 0.02XD<=y (m) <=0.067X(D-250)+15...(II). Wherein, D: thickness of the cast slab (mm).]]></abstract><edition>6</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 IMPROVING INNER QUALITY OF CONTINUOUSLY CAST SLAB BY LARGE ROLLING REDUCTION UNDER UNSOLIDIFIED CONDITION |
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