METHOD OF DETECTING A CRATER-END POSITION IN CONTINUOUS CASTING
To provide a method of detecting a crater-end position in continuous casting allowing for detecting a crater-end position at required accuracy during continuous casting.SOLUTION: A method of detecting a crater-end position includes roll-reducing a cast slab 10 under continuous casting by a reducing...
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| creator | NISHIOKA AKIRA IZAWA KENICHIRO ARAI HISASHI |
| description | To provide a method of detecting a crater-end position in continuous casting allowing for detecting a crater-end position at required accuracy during continuous casting.SOLUTION: A method of detecting a crater-end position includes roll-reducing a cast slab 10 under continuous casting by a reducing roll pair 6, measuring a rolling reduction of the cast slab, and determining a solidification completion position (crater-end position 41) of the cast slab. A reducing roll 1 constituting the reducing roll pair 6 has a roll outer periphery shape in a section including a roll-rotation axis configuring a convex shape protruding outward in a region including a widthwise center position 13 of the cast slab. The convex shape has a curve profile protruding outward and not having a corner, in a range of totally a length 0.40×W of from a widthwise center position 13 to both sides in a roll-width direction (convex shape-defining range 14). This makes it possible to accurately detect a crater-end position by increasing the change amount of rolling reduction corresponding to the variation of the crater-end position.SELECTED DRAWING: Figure 1
【課題】連続鋳造中にいてクレーターエンド位置を必要な精度で検出することのできる、連続鋳造におけるクレーターエンド位置検出方法を提供する。【解決手段】連続鋳造中の鋳片１０を圧下ロール対６によって圧下し、鋳片の圧下量を計測し、鋳片の凝固完了位置（クレーターエンド位置４１）を求めるクレーターエンド位置検出方法であって、圧下ロール対６を構成する圧下ロール１は、ロール回転軸を含む断面におけるロール外周形状が、鋳片の幅中心位置１３を含む領域で外側に張り出す凸形状を構成し、前記凸形状は、幅中心位置１３からロール幅方向の両側に合計で長さ０．４０×Ｗの範囲（凸形状規定範囲１４）において、外側に凸であって角部を有しない曲線形状とする。クレーターエンド位置の変動に対応する圧下量の変化量が大きくなり、クレーターエンド位置を精度良く検出することが可能となる。【選択図】図１ |
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【課題】連続鋳造中にいてクレーターエンド位置を必要な精度で検出することのできる、連続鋳造におけるクレーターエンド位置検出方法を提供する。【解決手段】連続鋳造中の鋳片１０を圧下ロール対６によって圧下し、鋳片の圧下量を計測し、鋳片の凝固完了位置（クレーターエンド位置４１）を求めるクレーターエンド位置検出方法であって、圧下ロール対６を構成する圧下ロール１は、ロール回転軸を含む断面におけるロール外周形状が、鋳片の幅中心位置１３を含む領域で外側に張り出す凸形状を構成し、前記凸形状は、幅中心位置１３からロール幅方向の両側に合計で長さ０．４０×Ｗの範囲（凸形状規定範囲１４）において、外側に凸であって角部を有しない曲線形状とする。クレーターエンド位置の変動に対応する圧下量の変化量が大きくなり、クレーターエンド位置を精度良く検出することが可能となる。【選択図】図１</description><language>eng ; jpn</language><subject>CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING</subject><creationdate>2020</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=20201022&DB=EPODOC&CC=JP&NR=2020171943A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20201022&DB=EPODOC&CC=JP&NR=2020171943A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NISHIOKA AKIRA</creatorcontrib><creatorcontrib>IZAWA KENICHIRO</creatorcontrib><creatorcontrib>ARAI HISASHI</creatorcontrib><title>METHOD OF DETECTING A CRATER-END POSITION IN CONTINUOUS CASTING</title><description>To provide a method of detecting a crater-end position in continuous casting allowing for detecting a crater-end position at required accuracy during continuous casting.SOLUTION: A method of detecting a crater-end position includes roll-reducing a cast slab 10 under continuous casting by a reducing roll pair 6, measuring a rolling reduction of the cast slab, and determining a solidification completion position (crater-end position 41) of the cast slab. A reducing roll 1 constituting the reducing roll pair 6 has a roll outer periphery shape in a section including a roll-rotation axis configuring a convex shape protruding outward in a region including a widthwise center position 13 of the cast slab. The convex shape has a curve profile protruding outward and not having a corner, in a range of totally a length 0.40×W of from a widthwise center position 13 to both sides in a roll-width direction (convex shape-defining range 14). This makes it possible to accurately detect a crater-end position by increasing the change amount of rolling reduction corresponding to the variation of the crater-end position.SELECTED DRAWING: Figure 1
【課題】連続鋳造中にいてクレーターエンド位置を必要な精度で検出することのできる、連続鋳造におけるクレーターエンド位置検出方法を提供する。【解決手段】連続鋳造中の鋳片１０を圧下ロール対６によって圧下し、鋳片の圧下量を計測し、鋳片の凝固完了位置（クレーターエンド位置４１）を求めるクレーターエンド位置検出方法であって、圧下ロール対６を構成する圧下ロール１は、ロール回転軸を含む断面におけるロール外周形状が、鋳片の幅中心位置１３を含む領域で外側に張り出す凸形状を構成し、前記凸形状は、幅中心位置１３からロール幅方向の両側に合計で長さ０．４０×Ｗの範囲（凸形状規定範囲１４）において、外側に凸であって角部を有しない曲線形状とする。クレーターエンド位置の変動に対応する圧下量の変化量が大きくなり、クレーターエンド位置を精度良く検出することが可能となる。【選択図】図１</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>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD3dQ3x8HdR8HdTcHENcXUO8fRzV3BUcA5yDHEN0nX1c1EI8A_2DPH091Pw9FNw9vcDKgj1Dw1WcHYMBqnlYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkYGhuaGlibGjsZEKQIAv3Yqsw</recordid><startdate>20201022</startdate><enddate>20201022</enddate><creator>NISHIOKA AKIRA</creator><creator>IZAWA KENICHIRO</creator><creator>ARAI HISASHI</creator><scope>EVB</scope></search><sort><creationdate>20201022</creationdate><title>METHOD OF DETECTING A CRATER-END POSITION IN CONTINUOUS CASTING</title><author>NISHIOKA AKIRA ; IZAWA KENICHIRO ; ARAI HISASHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2020171943A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2020</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>NISHIOKA AKIRA</creatorcontrib><creatorcontrib>IZAWA KENICHIRO</creatorcontrib><creatorcontrib>ARAI HISASHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NISHIOKA AKIRA</au><au>IZAWA KENICHIRO</au><au>ARAI HISASHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD OF DETECTING A CRATER-END POSITION IN CONTINUOUS CASTING</title><date>2020-10-22</date><risdate>2020</risdate><abstract>To provide a method of detecting a crater-end position in continuous casting allowing for detecting a crater-end position at required accuracy during continuous casting.SOLUTION: A method of detecting a crater-end position includes roll-reducing a cast slab 10 under continuous casting by a reducing roll pair 6, measuring a rolling reduction of the cast slab, and determining a solidification completion position (crater-end position 41) of the cast slab. A reducing roll 1 constituting the reducing roll pair 6 has a roll outer periphery shape in a section including a roll-rotation axis configuring a convex shape protruding outward in a region including a widthwise center position 13 of the cast slab. The convex shape has a curve profile protruding outward and not having a corner, in a range of totally a length 0.40×W of from a widthwise center position 13 to both sides in a roll-width direction (convex shape-defining range 14). This makes it possible to accurately detect a crater-end position by increasing the change amount of rolling reduction corresponding to the variation of the crater-end position.SELECTED DRAWING: Figure 1
【課題】連続鋳造中にいてクレーターエンド位置を必要な精度で検出することのできる、連続鋳造におけるクレーターエンド位置検出方法を提供する。【解決手段】連続鋳造中の鋳片１０を圧下ロール対６によって圧下し、鋳片の圧下量を計測し、鋳片の凝固完了位置（クレーターエンド位置４１）を求めるクレーターエンド位置検出方法であって、圧下ロール対６を構成する圧下ロール１は、ロール回転軸を含む断面におけるロール外周形状が、鋳片の幅中心位置１３を含む領域で外側に張り出す凸形状を構成し、前記凸形状は、幅中心位置１３からロール幅方向の両側に合計で長さ０．４０×Ｗの範囲（凸形状規定範囲１４）において、外側に凸であって角部を有しない曲線形状とする。クレーターエンド位置の変動に対応する圧下量の変化量が大きくなり、クレーターエンド位置を精度良く検出することが可能となる。【選択図】図１</abstract><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 OF DETECTING A CRATER-END POSITION IN CONTINUOUS CASTING |
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