MA30286B1 - Procede et installation de surveillance et regulation integrees de la planéité et du profil d'un feuillard - Google Patents

Procede et installation de surveillance et regulation integrees de la planéité et du profil d'un feuillard

Info

Publication number
MA30286B1
MA30286B1 MA31248A MA31248A MA30286B1 MA 30286 B1 MA30286 B1 MA 30286B1 MA 31248 A MA31248 A MA 31248A MA 31248 A MA31248 A MA 31248A MA 30286 B1 MA30286 B1 MA 30286B1
Authority
MA
Morocco
Prior art keywords
strip
profile
thickness profile
regulation
flatness
Prior art date
Application number
MA31248A
Other languages
English (en)
French (fr)
Inventor
Jason A Mueller
Harold Bradley Rees
Glen Wallace
Richard Britanik
Tino Domanti
Terry L Gerber
Original Assignee
Nucor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38474546&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MA30286(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nucor Corp filed Critical Nucor Corp
Publication of MA30286B1 publication Critical patent/MA30286B1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16Control of thickness, width, diameter or other transverse dimensions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/22Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057Coiling the rolled product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2263/00Shape of product
    • B21B2263/02Profile, e.g. of plate, hot strip, sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B38/00Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203Cooling
    • B21B45/0209Cooling devices, e.g. using gaseous coolants
    • B21B45/0215Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)
MA31248A 2006-03-08 2008-09-17 Procede et installation de surveillance et regulation integrees de la planéité et du profil d'un feuillard MA30286B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78032606P 2006-03-08 2006-03-08
US11/625,031 US7849722B2 (en) 2006-03-08 2007-01-19 Method and plant for integrated monitoring and control of strip flatness and strip profile

Publications (1)

Publication Number Publication Date
MA30286B1 true MA30286B1 (fr) 2009-03-02

Family

ID=38474546

Family Applications (1)

Application Number Title Priority Date Filing Date
MA31248A MA30286B1 (fr) 2006-03-08 2008-09-17 Procede et installation de surveillance et regulation integrees de la planéité et du profil d'un feuillard

Country Status (14)

Country Link
US (1) US7849722B2 (https=)
EP (1) EP1998908B1 (https=)
JP (1) JP5537037B2 (https=)
KR (1) KR101390745B1 (https=)
CN (1) CN101443135B (https=)
AU (1) AU2007222894B2 (https=)
BR (1) BRPI0708641B1 (https=)
MA (1) MA30286B1 (https=)
MX (1) MX2008011211A (https=)
MY (1) MY147288A (https=)
NZ (1) NZ571432A (https=)
PL (1) PL1998908T3 (https=)
RU (1) RU2434711C2 (https=)
WO (1) WO2007101308A1 (https=)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008574A1 (de) * 2006-02-22 2007-08-30 Siemens Ag Verfahren zur Unterdrückung des Einflusses von Walzenexzentrizitäten
US8205474B2 (en) * 2006-03-08 2012-06-26 Nucor Corporation Method and plant for integrated monitoring and control of strip flatness and strip profile
US7984748B2 (en) 2008-07-03 2011-07-26 Nucor Corporation Apparatus for continuous strip casting
US8459333B2 (en) 2009-05-06 2013-06-11 Siemens Aktiengesellschaft Method for producing rolling stock rolled in a rolling train of a rolling mill, control and/or regulation device for rolling mill for producing rolled rolling stock, rolling mill for producing rolled rolling stock, machine readable program code and storage medium
DE102009060243A1 (de) * 2009-12-23 2011-06-30 SMS Siemag Aktiengesellschaft, 40237 Planheitsbestimmung eines Metallbands durch Messung des Profils
EP2418031A1 (de) * 2010-08-13 2012-02-15 Siemens Aktiengesellschaft Verfahren zum Herstellen von Metallband mittels einer Gießwalzverbundanlage, Steuer- und/oder Regeleinrichtung für eine Gießwalzverbundanlage und Gießwalzverbundanlage
US20120283864A1 (en) * 2011-05-04 2012-11-08 Norandal Usa, Inc. Automated cast coil evaluation system
EP2679317A1 (de) * 2012-06-29 2014-01-01 Siemens Aktiengesellschaft Verfahren zum Betrieb eines Steckelwalzwerks
US9156082B2 (en) 2013-06-04 2015-10-13 Nucor Corporation Method of continuously casting thin strip
ITUB20153029A1 (it) * 2015-08-10 2017-02-10 Danieli Automation Spa Metodo per la misura a caldo, durante la laminazione, di una dimensione di profili metallici
JP6551282B2 (ja) * 2016-03-31 2019-07-31 Jfeスチール株式会社 熱間仕上圧延方法
CN105929460A (zh) * 2016-05-07 2016-09-07 合肥国轩高科动力能源有限公司 一种电极组件对齐检测装置及其检测方法
US20170327925A1 (en) * 2016-05-11 2017-11-16 Nucor Corporation Cross-strip temperature variation control
EP3599038A1 (de) * 2018-07-25 2020-01-29 Primetals Technologies Austria GmbH Verfahren und vorrichtung zur ermittlung der seitlichen bandkontur eines laufenden metallbandes
TW202019582A (zh) * 2018-10-22 2020-06-01 日商日本製鐵股份有限公司 鑄片的製造方法及控制裝置
US11819895B2 (en) * 2018-10-31 2023-11-21 Nippon Steel Corporation Control system, control method, control device, and program
CN109622632B (zh) * 2018-12-18 2020-06-26 北京科技大学 一种热轧中间坯镰刀弯控制方法
CN110116060A (zh) * 2019-05-27 2019-08-13 燕山大学 基于均匀涂油的静电涂油机核心工艺参数在线调整方法
CN110508675B (zh) * 2019-08-28 2021-02-09 博瑞孚曼机械科技(苏州)有限公司 一种高精度辊压成型件的尺寸控制方法
EP3888810B1 (en) * 2020-04-03 2023-08-02 ABB Schweiz AG Method of controlling flatness of strip of rolled material, control system and production line
CN111515246B (zh) * 2020-04-30 2022-04-15 宝信软件(武汉)有限公司 一种五机架连轧中定位缺陷辊的方法
JP7650666B2 (ja) * 2021-01-08 2025-03-25 株式会社日立製作所 プラント制御装置、プラント制御方法及びプログラム
JP7554710B2 (ja) * 2021-05-28 2024-09-20 株式会社日立製作所 プラント制御装置、プラント制御方法及びプログラム
US20240416403A1 (en) * 2023-06-13 2024-12-19 Honeywell International Inc. Model Based Multi-Variable Predictive Control for Metal Rolling Mills
CN120316932B (zh) * 2025-06-18 2025-10-17 北京一控软件技术有限公司 一种基于打滑机理的张力辊组动态负荷分配方法

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT345237B (de) 1976-12-28 1978-09-11 Voest Ag Vorrichtung zum walzen von band- oder tafelfoermigem walzgut
US4261190A (en) * 1979-07-30 1981-04-14 General Electric Company Flatness control in hot strip mill
GB2100470A (en) * 1981-04-25 1982-12-22 British Aluminium Co Ltd Working strip material
DE3240602A1 (de) 1982-11-03 1984-06-14 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH, 4000 Düsseldorf Verfahren zum regeln der zugspannungsverteilung beim kaltwalzen von baendern
JPS611418A (ja) 1984-06-13 1986-01-07 Mitsubishi Heavy Ind Ltd 金属ストリツプの形状矯正方法
JPS6149722A (ja) 1984-08-20 1986-03-11 Nippon Kokan Kk <Nkk> 鋼ストリツプの板厚制御方法
IT1182868B (it) 1985-09-20 1987-10-05 Randolph Norwood Mitchell Procedimento ed apparecchiatura per il controllo e/o correzione continua del profilo e planarita' di nastri metallici e simili
JPS62238012A (ja) * 1986-04-07 1987-10-19 Mitsubishi Electric Corp 板材の形状制御方法
DE3721746A1 (de) 1987-07-01 1989-01-19 Schloemann Siemag Ag Verfahren und vorrichtung zur messung der planheit von walzband in warmbreitbandstrassen
JP2635345B2 (ja) * 1988-01-12 1997-07-30 三菱電機株式会社 圧延機の板材形状制御装置
JPH0747171B2 (ja) * 1988-09-20 1995-05-24 株式会社東芝 圧延機の設定方法および装置
SU1705072A1 (ru) 1990-03-11 1992-01-15 Липецкий политехнический институт Устройство дл автоматического регулировани формы полосы
JP2635796B2 (ja) * 1990-04-03 1997-07-30 株式会社東芝 圧延制御装置
JP2697465B2 (ja) * 1992-03-27 1998-01-14 住友金属工業株式会社 薄板の連続製造方法
JP2628963B2 (ja) 1992-09-11 1997-07-09 川崎製鉄株式会社 ホットストリップ仕上圧延機の設備配列
DE4309986A1 (de) * 1993-03-29 1994-10-06 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes
US6044895A (en) * 1993-12-21 2000-04-04 Siemens Aktiengesellschaft Continuous casting and rolling system including control system
US5493885A (en) * 1994-03-10 1996-02-27 Kawasaki Steel Corporation Method and apparatus for controlling rolling process in hot strip finish rolling mill
CN1082853C (zh) * 1994-03-11 2002-04-17 川崎制铁株式会社 轧制控制方法及其装置
US5546779A (en) * 1994-03-24 1996-08-20 Danieli United, Inc. Interstand strip gauge and profile conrol
GB9411820D0 (en) 1994-06-13 1994-08-03 Davy Mckee Poole Strip profile control
DE19500336A1 (de) 1995-01-07 1996-07-11 Schloemann Siemag Ag Verfahren zur Regelung des Walzspaltprofils
JP3056668B2 (ja) * 1995-04-21 2000-06-26 新日本製鐵株式会社 ストリップ連続鋳造熱間圧延熱処理設備およびストリップ連続鋳造熱間圧延熱処理方法
EP0791411B1 (en) * 1995-12-26 2008-02-13 Toshiba Mitsubishi-Electric Industrial Systems Corporation Strip crown measuring method and control method for continuous rolling machines
DE69731008T2 (de) * 1996-07-18 2006-02-23 Jfe Steel Corp. Walzverfahren für Bänder zur Reduzierung der Kantenschärfe
JP2956934B2 (ja) 1996-12-16 1999-10-04 川崎製鉄株式会社 ホットストリップ仕上圧延機における圧延制御方法
JP2956933B2 (ja) 1996-12-16 1999-10-04 川崎製鉄株式会社 ホットストリップ仕上圧延機における圧延制御方法
DE19654068A1 (de) * 1996-12-23 1998-06-25 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes
DE19758466B4 (de) * 1997-03-11 2007-10-04 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Planheits-Regelungssystem für Metallband
AUPO591697A0 (en) * 1997-03-27 1997-04-24 Bhp Steel (Jla) Pty Limited Casting metal strip
RU2115494C1 (ru) 1997-08-14 1998-07-20 Череповецкий государственный университет Способ управления тепловым профилем валков прокатного стана
DE19737735A1 (de) * 1997-08-29 1999-03-04 Schloemann Siemag Ag Vorrichtung und Verfahren zur auslaufseitigen Kühlung der Arbeitswalzen eines Walzgerüstes
JP3866877B2 (ja) 1999-05-21 2007-01-10 新日本製鐵株式会社 双ドラム式連続鋳造設備における板厚制御方法および装置、記録媒体
US6216505B1 (en) 1999-06-25 2001-04-17 Sumitomo Metal Industries, Ltd. Method and apparatus for rolling a strip
DE10036564C2 (de) * 1999-08-03 2001-06-21 Achenbach Buschhuetten Gmbh Mehrwalzengerüst
US6158260A (en) * 1999-09-15 2000-12-12 Danieli Technology, Inc. Universal roll crossing system
JP4330095B2 (ja) 1999-11-08 2009-09-09 日新製鋼株式会社 多段圧延機における形状制御方法
RU2154541C1 (ru) 1999-12-07 2000-08-20 Бодров Валерий Владимирович Система регулирования профиля полосы
US20010029848A1 (en) * 1999-12-08 2001-10-18 Herbert Lemper Adjustable crown and edge drop control back-up roll
AUPQ546900A0 (en) * 2000-02-07 2000-03-02 Bhp Steel (Jla) Pty Limited Rolling strip material
US6314776B1 (en) * 2000-10-03 2001-11-13 Alcoa Inc. Sixth order actuator and mill set-up system for rolling mill profile and flatness control
JP3485083B2 (ja) 2000-10-24 2004-01-13 住友金属工業株式会社 冷間圧延設備および冷間圧延方法
JP4473466B2 (ja) * 2001-04-16 2010-06-02 新日本製鐵株式会社 薄帯鋳片連続鋳造方法及び装置
KR100805900B1 (ko) 2001-12-26 2008-02-21 주식회사 포스코 평탄도 제어를 수행하는 피드백 제어 장치 및 방법
ATE367217T1 (de) 2003-05-30 2007-08-15 Siemens Ag Steuerrechner und rechnergestütztes ermittlungsverfahren für eine profil- und planheitssteuerung für eine walzstrasse
JP2005007442A (ja) 2003-06-19 2005-01-13 Yoshihiro Kato プレス装置
RU2250151C1 (ru) * 2003-09-16 2005-04-20 Общество с ограниченной ответственностью Фирма "Дата-Центр" Способ производства тонкого металлического листа из тонкой литой полосы и автоматизированная линия технологического оборудования для производства тонкого металлического листа из тонкой литой полосы
DE10346274A1 (de) * 2003-10-06 2005-04-28 Siemens Ag Verfahren und Steuervorrichtung zum Betrieb einer Walzstraße für Metallband
CN1235015C (zh) * 2003-12-10 2006-01-04 东北大学 轧制过程预测钢板厚度的方法
DE102004032634A1 (de) 2004-07-06 2006-02-16 Sms Demag Ag Verfahren und Einrichtung zum Messen und Regeln der Planheit und/oder der Bandspannungen eines Edelstahlbandes oder einer Edelstahlfolie beim Kaltwalzen in einem Vielwalzengerüst, insbesondere in einem 20-Walzen-Sendizimir-Walzwerk
AT501314B1 (de) * 2004-10-13 2012-03-15 Voest Alpine Ind Anlagen Verfahren und vorrichtung zum kontinuierlichen herstellen eines dünnen metallbandes
US7181822B2 (en) * 2005-01-20 2007-02-27 Nucor Corporation Method and apparatus for controlling strip shape in hot rolling mills

Also Published As

Publication number Publication date
CN101443135B (zh) 2011-10-12
EP1998908B1 (en) 2014-11-05
JP5537037B2 (ja) 2014-07-02
EP1998908A4 (en) 2012-08-29
RU2008139906A (ru) 2010-04-20
AU2007222894B2 (en) 2013-02-28
US20070220939A1 (en) 2007-09-27
KR101390745B1 (ko) 2014-04-30
BRPI0708641B1 (pt) 2020-01-28
CN101443135A (zh) 2009-05-27
AU2007222894A1 (en) 2007-09-13
NZ571432A (en) 2011-09-30
WO2007101308A1 (en) 2007-09-13
EP1998908A1 (en) 2008-12-10
US7849722B2 (en) 2010-12-14
JP2009528920A (ja) 2009-08-13
KR20080100849A (ko) 2008-11-19
RU2434711C2 (ru) 2011-11-27
MX2008011211A (es) 2008-09-11
MY147288A (en) 2012-11-30
PL1998908T3 (pl) 2015-04-30
BRPI0708641A2 (pt) 2011-06-07

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