SLIP PREVENTION METHOD AND SLIP PREVENTION DEVICE OF COLD ROLLING MILL
To provide a method and a device for preventing slip without decelerating speed of a steel plate during operation of a cold rolling mill and changing tension acting on the steel plate.SOLUTION: A plate thickness of a steel plate 1 on an inlet side of a [i-1]-th stand arranged on an upstream side of...
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| creator | KURISU KEN MASUDA REI |
| description | To provide a method and a device for preventing slip without decelerating speed of a steel plate during operation of a cold rolling mill and changing tension acting on the steel plate.SOLUTION: A plate thickness of a steel plate 1 on an inlet side of a [i-1]-th stand arranged on an upstream side of an i-th stand (i:integer of 2-N) is represented by Ti-1(mm), plate speed is represented by Vi-1(m/min), and a plate thickness of the steel plate on the inlet side of the i-th stand is represented by Ti(mm), and plate speed Vi(m/min) of the steel plate on the inlet side of the i-th stand is calculated. Roll circumferential speed Wi(m/min) is calculated from a circumferential length (m) of a work roll 2 of the i-th stand and rotation speed (time/min) of the work roll. Forward slip δi(%) in the i-th stand is calculated using the plate speed Vi and roll circumferential speed Wi. When the obtained forward slip δi is lower than a threshold Mi, a rolling reduction ηi(%) of the i-th stand is reduced, and thereby occurrence of slip in the i-th stand is prevented.SELECTED DRAWING: Figure 1
【課題】冷間圧延機の操業中に鋼板の速度を減速することなく、かつ鋼板に作用する張力を変更することなく、スリップを防止する方法および装置を提供する。【解決手段】第ｉスタンド（ｉ：２〜Ｎの整数）の上流側に配設される第［ｉ−１］スタンドの入側における鋼板１の板厚をＴi-1（mm）、板速度をＶi-1（ｍ／分）とし、第ｉスタンドの入側における鋼板の板厚をＴi（mm）として第ｉスタンドの入側における鋼板の板速度Ｖi（ｍ／分）を算出し、第ｉスタンドのワークロール２の円周長さ（ｍ）とワークロールの回転速度（回／分）からロール周速度Ｗi（ｍ／分）を算出し、次いで板速度Ｖiとロール周速度Ｗiを用いて第ｉスタンドにおける先進率δi（％）を算出し、得られた先進率δiが閾値Ｍiを下回る場合に、第ｉスタンドの圧下率ηi（％）を低下させることによって、第ｉスタンドにおけるスリップの発生を防止する。【選択図】図１ |
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【課題】冷間圧延機の操業中に鋼板の速度を減速することなく、かつ鋼板に作用する張力を変更することなく、スリップを防止する方法および装置を提供する。【解決手段】第ｉスタンド（ｉ：２〜Ｎの整数）の上流側に配設される第［ｉ−１］スタンドの入側における鋼板１の板厚をＴi-1（mm）、板速度をＶi-1（ｍ／分）とし、第ｉスタンドの入側における鋼板の板厚をＴi（mm）として第ｉスタンドの入側における鋼板の板速度Ｖi（ｍ／分）を算出し、第ｉスタンドのワークロール２の円周長さ（ｍ）とワークロールの回転速度（回／分）からロール周速度Ｗi（ｍ／分）を算出し、次いで板速度Ｖiとロール周速度Ｗiを用いて第ｉスタンドにおける先進率δi（％）を算出し、得られた先進率δiが閾値Ｍiを下回る場合に、第ｉスタンドの圧下率ηi（％）を低下させることによって、第ｉスタンドにおけるスリップの発生を防止する。【選択図】図１</description><language>eng ; jpn</language><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; PERFORMING OPERATIONS ; PUNCHING METAL ; ROLLING OF METAL ; TRANSPORTING</subject><creationdate>2021</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=20211028&DB=EPODOC&CC=JP&NR=2021169109A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211028&DB=EPODOC&CC=JP&NR=2021169109A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KURISU KEN</creatorcontrib><creatorcontrib>MASUDA REI</creatorcontrib><title>SLIP PREVENTION METHOD AND SLIP PREVENTION DEVICE OF COLD ROLLING MILL</title><description>To provide a method and a device for preventing slip without decelerating speed of a steel plate during operation of a cold rolling mill and changing tension acting on the steel plate.SOLUTION: A plate thickness of a steel plate 1 on an inlet side of a [i-1]-th stand arranged on an upstream side of an i-th stand (i:integer of 2-N) is represented by Ti-1(mm), plate speed is represented by Vi-1(m/min), and a plate thickness of the steel plate on the inlet side of the i-th stand is represented by Ti(mm), and plate speed Vi(m/min) of the steel plate on the inlet side of the i-th stand is calculated. Roll circumferential speed Wi(m/min) is calculated from a circumferential length (m) of a work roll 2 of the i-th stand and rotation speed (time/min) of the work roll. Forward slip δi(%) in the i-th stand is calculated using the plate speed Vi and roll circumferential speed Wi. When the obtained forward slip δi is lower than a threshold Mi, a rolling reduction ηi(%) of the i-th stand is reduced, and thereby occurrence of slip in the i-th stand is prevented.SELECTED DRAWING: Figure 1
【課題】冷間圧延機の操業中に鋼板の速度を減速することなく、かつ鋼板に作用する張力を変更することなく、スリップを防止する方法および装置を提供する。【解決手段】第ｉスタンド（ｉ：２〜Ｎの整数）の上流側に配設される第［ｉ−１］スタンドの入側における鋼板１の板厚をＴi-1（mm）、板速度をＶi-1（ｍ／分）とし、第ｉスタンドの入側における鋼板の板厚をＴi（mm）として第ｉスタンドの入側における鋼板の板速度Ｖi（ｍ／分）を算出し、第ｉスタンドのワークロール２の円周長さ（ｍ）とワークロールの回転速度（回／分）からロール周速度Ｗi（ｍ／分）を算出し、次いで板速度Ｖiとロール周速度Ｗiを用いて第ｉスタンドにおける先進率δi（％）を算出し、得られた先進率δiが閾値Ｍiを下回る場合に、第ｉスタンドの圧下率ηi（％）を低下させることによって、第ｉスタンドにおけるスリップの発生を防止する。【選択図】図１</description><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>ROLLING OF METAL</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAL9vEMUAgIcg1z9Qvx9PdT8HUN8fB3UXD0c1FAl3JxDfN0dlXwd1Nw9vdxUQjy9_Hx9HNX8PX08eFhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRoaGZpaGBpaOxkQpAgAAnSyj</recordid><startdate>20211028</startdate><enddate>20211028</enddate><creator>KURISU KEN</creator><creator>MASUDA REI</creator><scope>EVB</scope></search><sort><creationdate>20211028</creationdate><title>SLIP PREVENTION METHOD AND SLIP PREVENTION DEVICE OF COLD ROLLING MILL</title><author>KURISU KEN ; MASUDA REI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021169109A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>ROLLING OF METAL</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>KURISU KEN</creatorcontrib><creatorcontrib>MASUDA REI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KURISU KEN</au><au>MASUDA REI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SLIP PREVENTION METHOD AND SLIP PREVENTION DEVICE OF COLD ROLLING MILL</title><date>2021-10-28</date><risdate>2021</risdate><abstract>To provide a method and a device for preventing slip without decelerating speed of a steel plate during operation of a cold rolling mill and changing tension acting on the steel plate.SOLUTION: A plate thickness of a steel plate 1 on an inlet side of a [i-1]-th stand arranged on an upstream side of an i-th stand (i:integer of 2-N) is represented by Ti-1(mm), plate speed is represented by Vi-1(m/min), and a plate thickness of the steel plate on the inlet side of the i-th stand is represented by Ti(mm), and plate speed Vi(m/min) of the steel plate on the inlet side of the i-th stand is calculated. Roll circumferential speed Wi(m/min) is calculated from a circumferential length (m) of a work roll 2 of the i-th stand and rotation speed (time/min) of the work roll. Forward slip δi(%) in the i-th stand is calculated using the plate speed Vi and roll circumferential speed Wi. When the obtained forward slip δi is lower than a threshold Mi, a rolling reduction ηi(%) of the i-th stand is reduced, and thereby occurrence of slip in the i-th stand is prevented.SELECTED DRAWING: Figure 1
【課題】冷間圧延機の操業中に鋼板の速度を減速することなく、かつ鋼板に作用する張力を変更することなく、スリップを防止する方法および装置を提供する。【解決手段】第ｉスタンド（ｉ：２〜Ｎの整数）の上流側に配設される第［ｉ−１］スタンドの入側における鋼板１の板厚をＴi-1（mm）、板速度をＶi-1（ｍ／分）とし、第ｉスタンドの入側における鋼板の板厚をＴi（mm）として第ｉスタンドの入側における鋼板の板速度Ｖi（ｍ／分）を算出し、第ｉスタンドのワークロール２の円周長さ（ｍ）とワークロールの回転速度（回／分）からロール周速度Ｗi（ｍ／分）を算出し、次いで板速度Ｖiとロール周速度Ｗiを用いて第ｉスタンドにおける先進率δi（％）を算出し、得られた先進率δiが閾値Ｍiを下回る場合に、第ｉスタンドの圧下率ηi（％）を低下させることによって、第ｉスタンドにおけるスリップの発生を防止する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING |
| title | SLIP PREVENTION METHOD AND SLIP PREVENTION DEVICE OF COLD ROLLING MILL |
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