US20010012388A1 - Flatness measurement system for metal strip - Google Patents
Flatness measurement system for metal strip Download PDFInfo
- Publication number
- US20010012388A1 US20010012388A1 US09/034,481 US3448198A US2001012388A1 US 20010012388 A1 US20010012388 A1 US 20010012388A1 US 3448198 A US3448198 A US 3448198A US 2001012388 A1 US2001012388 A1 US 2001012388A1
- Authority
- US
- United States
- Prior art keywords
- strip
- flatness
- measurement
- coiler
- finishing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/02—Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
- B21B37/52—Tension control; Compression control by drive motor control
- B21B37/54—Tension control; Compression control by drive motor control including coiler drive control, e.g. reversing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices 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
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Definitions
- the invention relates to a flatness measurement and control system for metal strip and for the end faces of the coil when coiling strip.
- Strip flatness is therefore preferably measured without contact.
- it is known to measure departures from flatness by means of spots of light projected on to the strip.
- the position in space of the light spot produced on the surface of the strip, preferably by means of a laser beam, is detected using a range finder.
- the two plane position coordinates of a particular point on the surface are known from the position of the scanning or illuminating beam relative to the surface of the strip.
- the height coordinate of the point on the surface which is currently being measured is detected by a position-sensitive sensor.
- the position of the image point on the sensor varies simultaneously with the height coordinate.
- the moiré technique provides more accurate measurement results than measurement using spots of light, and moreover it covers substantially the whole of the surface to be measured and avoids the measurement gaps mentioned above.
- its use involves problems, particularly in a hot strip mill.
- the object of the invention is to provide a system which allows strip quality to be improved by a simple and effective measurement of the strip flatness and permits fine control of the rolling and/or coiling parameters.
- a line pattern is produced on the measurement surface and/or on the end face of a coil being formed, the line pattern is detected by a camera which can resolve the line pattern, and the measurement data obtained are compared with a reference measurement.
- the measurement results are directly converted into control parameters for the finishing train and the coiler and coordinated.
- measurement surface is to be understood here the surface of the strip or, in the case of coiling, the end face of a coil made up of a larger or smaller number of turns of the strip.
- a projector produces by projection, for example through a slide, a line pattern on the strip surface or the end face of the coil corresponding to the resolution of the camera.
- the projector is mounted above the metal strip and projects the line pattern on the surface of the metal strip at an angle to the vertical, so that the lines preferably run transverse to the strip surface and consequently take in the whole width of the strip.
- a CCD camera having a resolution of, for example, eight pixels per line detects the lines running transversely across the strip surface. In the event of absolute flatness of the strip a uniform pattern of straight lines with constant line spacing is formed.
- Deviations of the strip surface from the ideal plane bring about a change in the spacing between the lines in the region of the unevenness. This change is recorded by the camera. It can be converted by calculation in a simple manner into differences in height by a comparison with an ideal pattern.
- the flatness of the end faces during coiling can be monitored and ensured by means of the measuring system of the invention.
- the end face of the coil being formed in the coiler then corresponds to the strip surface.
- the system in accordance with the invention makes possible a rapid determination of the actual height differences of the strip surface and in this way permits measurement of continuous lengths of strip in real time. This has the advantage that the measurement results permit the rolling parameters to be adapted immediately after the appearance of an unevenness.
- the invention makes possible a measurement which is insensitive to spurious measurement results. Such spurious results are obtained with conventional measuring systems for example as a result of movement of the whole strip surface relative to the height coordinate (flutterirg). Furthermore, the invention allows the transverse arching of the strip to be determined. Conventional measuring systems only measure the length of the strip fibres. In addition the intensity and thickness of the measurement lines can be adapted to meet different conditions. The problems of the fine, low-intensity and low-contrast moiré lines do not occur.
- the system of the invention is particularly suitable for making a measurement on the strip emerging from the finishing stands combined with a measurement of the strip on the coiler.
- the measurement data can be evaluated for control of the finishing stands and of the coiler and for control of the coiling line.
- the system in accordance with the invention can also be used in subsequent production lines, for example in the control of stretch straightening devices and in pickling lines.
- FIG. 1 shows the production and detection of the measurement lines on a length of strip
- FIG. 2 shows a projector and a camera arranged after a finishing train
- FIG. 3 shows the projector and the camera arranged before a coiler pit
- FIG. 4 is a block diagram of the flatness control system.
- Measurement lines 2 running transverse to tie strip 1 are produced on the measurement or strip surface 4 using a projector 3 .
- the measuring arrangement is disposed in ore case in the run-out from the finishing stands 6 and in the other case before the coiler 7 , on an instrument case 13 .
- the CCD camera 5 is located on the side of the instrument case nearer to the coiler 7 , in a water-cooled housing.
- the projector 3 is located on the side of the instrument case remote from the coiler 7 . To remove heat the housing is cooled with air. The cooling of the projector 3 and of the camera 5 is necessary to remove their intrinsic heat and the radiant heat from the strip 1 , which is at about 1000° C.
- the camera 5 and the projector 3 are arranged in succession relative to the direction of travel of the strip and are aimed at a region of the strip located between them, on which the line pattern is produced and sampled.
- the projector used may, for example, be a xenon light source, which produces an easily readable line pattern even on a hot slab.
- a first secondary control loop 11 is also produced which permits the intended value for the cooling line 8 to be adapted and a second secondary control loop 12 which permits the intended value for the coiler tension 7 to be adapted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Control Of Metal Rolling (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Metal Rolling (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Vehicle Body Suspensions (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/441,007 US6286349B1 (en) | 1997-03-11 | 1999-11-16 | Flatness measurement system for metal strip |
US10/677,880 US20050089210A1 (en) | 1997-03-11 | 2003-10-02 | Flatness measurement system for metal strip |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19709992.0 | 1997-03-11 | ||
DE19709992A DE19709992C1 (de) | 1997-03-11 | 1997-03-11 | Verfahren zum Messen der Oberflächengeometrie von Warmband |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/441,007 Division US6286349B1 (en) | 1997-03-11 | 1999-11-16 | Flatness measurement system for metal strip |
US10/677,880 Continuation US20050089210A1 (en) | 1997-03-11 | 2003-10-02 | Flatness measurement system for metal strip |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010012388A1 true US20010012388A1 (en) | 2001-08-09 |
Family
ID=7822971
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/034,481 Abandoned US20010012388A1 (en) | 1997-03-11 | 1998-03-04 | Flatness measurement system for metal strip |
US09/441,007 Expired - Lifetime US6286349B1 (en) | 1997-03-11 | 1999-11-16 | Flatness measurement system for metal strip |
US10/677,880 Abandoned US20050089210A1 (en) | 1997-03-11 | 2003-10-02 | Flatness measurement system for metal strip |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/441,007 Expired - Lifetime US6286349B1 (en) | 1997-03-11 | 1999-11-16 | Flatness measurement system for metal strip |
US10/677,880 Abandoned US20050089210A1 (en) | 1997-03-11 | 2003-10-02 | Flatness measurement system for metal strip |
Country Status (7)
Country | Link |
---|---|
US (3) | US20010012388A1 (da) |
EP (2) | EP0864847B1 (da) |
JP (1) | JPH112511A (da) |
AT (2) | ATE314626T1 (da) |
DE (4) | DE19709992C1 (da) |
DK (2) | DK1418400T3 (da) |
ES (2) | ES2258287T3 (da) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6690474B1 (en) | 1996-02-12 | 2004-02-10 | Massachusetts Institute Of Technology | Apparatus and methods for surface contour measurement |
US20040201859A1 (en) * | 2003-03-20 | 2004-10-14 | Ims Messsysteme Gmbh | Method and device for the geometrical measurement of a material strip |
US6937350B2 (en) | 2001-06-29 | 2005-08-30 | Massachusetts Institute Of Technology | Apparatus and methods for optically monitoring thickness |
US20080281543A1 (en) * | 2007-05-07 | 2008-11-13 | General Electric Company | Inspection system and methods with autocompensation for edge break gauging orientation |
US7489820B1 (en) * | 1998-09-14 | 2009-02-10 | Vdeh-Betriebsforschungsinstitut Gmbh | System for measuring the surface geometry and surface evenness of flat products |
US20220238391A1 (en) * | 2021-01-27 | 2022-07-28 | Boe Technology Group Co., Ltd. | Device and system for testing flatness |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU757340B2 (en) | 1999-04-02 | 2003-02-20 | Hunter Douglas Industries Bv | Method and arrangement for automatic bow adjustment |
EP1055905B1 (de) * | 1999-05-28 | 2004-06-30 | IMS-Messsysteme GmbH | Verfahren zur Bestimmung der Planheit eines Materialbandes |
DE69913538T2 (de) * | 1999-12-23 | 2004-09-30 | Abb Ab | Verfahren und Vorrichtung zur Planheitsregelung |
DE10014813B4 (de) * | 2000-03-27 | 2005-10-06 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Verfahren und Vorrichtung zum lagegerechten Aufwickeln eines gewalzten Warmbandes in einer Haspelvorrichtung |
FR2812082B1 (fr) * | 2000-07-20 | 2002-11-29 | Vai Clecim | Rouleau de mesure de planeite |
DE10041181A1 (de) | 2000-08-18 | 2002-05-16 | Betr Forsch Inst Angew Forsch | Mehrgrößen-Planheitsregelungssystem |
US6711279B1 (en) * | 2000-11-17 | 2004-03-23 | Honeywell International Inc. | Object detection |
US6841780B2 (en) * | 2001-01-19 | 2005-01-11 | Honeywell International Inc. | Method and apparatus for detecting objects |
US7176440B2 (en) * | 2001-01-19 | 2007-02-13 | Honeywell International Inc. | Method and apparatus for detecting objects using structured light patterns |
FR2830079B1 (fr) * | 2001-09-26 | 2004-04-30 | Holo 3 | Procede et dispositif de mesure d'au moins une grandeur geometrique d'une surface optiquement reflechissante |
EP1327852A1 (en) * | 2002-01-11 | 2003-07-16 | CENTRO SVILUPPO MATERIALI S.p.A. | Apparatus for the measuring of the surface flatness, in particular for metallic strips |
DE10205132A1 (de) * | 2002-02-07 | 2003-08-28 | Bfi Vdeh Inst Angewandte Forschung Gmbh | Verfahren und Vorrichtung zum optischen Messen der Oberflächenform und zur optischen Oberflächeninspektion von bewegten Bändern in Walz- und Weiterbearbeitungsanlagen |
DE10346274A1 (de) * | 2003-10-06 | 2005-04-28 | Siemens Ag | Verfahren und Steuervorrichtung zum Betrieb einer Walzstraße für Metallband |
AT501314B1 (de) * | 2004-10-13 | 2012-03-15 | Voest Alpine Ind Anlagen | Verfahren und vorrichtung zum kontinuierlichen herstellen eines dünnen metallbandes |
DE102005023270A1 (de) * | 2005-05-20 | 2006-11-23 | Sms Demag Ag | Verfahren und Vorrichtung zur Herstellung eines Metallbandes |
US8205474B2 (en) * | 2006-03-08 | 2012-06-26 | Nucor Corporation | Method and plant for integrated monitoring and control of strip flatness and strip profile |
US7849722B2 (en) * | 2006-03-08 | 2010-12-14 | Nucor Corporation | Method and plant for integrated monitoring and control of strip flatness and strip profile |
JP4797887B2 (ja) * | 2006-08-29 | 2011-10-19 | 住友金属工業株式会社 | 板材の平坦度測定方法及び板材の平坦度測定装置 |
WO2008105479A1 (ja) * | 2007-02-28 | 2008-09-04 | Jfe Steel Corporation | 近赤外線カメラを用いた金属帯の熱間圧延方法および装置 |
EP2014380A1 (fr) * | 2007-06-11 | 2009-01-14 | ArcelorMittal France | Procédé de laminage d'une bande métallique avec régulation de sa position latérale d'une bande et laminoir adapté |
JP4957663B2 (ja) * | 2008-06-26 | 2012-06-20 | 住友金属工業株式会社 | 熱延鋼板の製造方法および製造装置 |
EP2344286B1 (de) * | 2008-10-31 | 2013-11-20 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zur ermittlung einer planheit eines metallbandes |
CN101422787B (zh) * | 2008-12-10 | 2011-04-20 | 北京科技大学 | 基于单步相移法的带钢平坦度测量方法 |
EP2258492A1 (de) | 2009-06-02 | 2010-12-08 | Siemens Aktiengesellschaft | Verfahren zur Herstellung eines Walzguts mittels einer Walzstraße, Steuer- und/oder Regeleinrichtung für eine Walzstraße, Walzanlage zur Herstellung von gewalztem Walzgut, Maschinenlesbarer Programmcode und Speichermedium |
EP2301685A1 (de) * | 2009-09-23 | 2011-03-30 | Siemens Aktiengesellschaft | Steuerverfahren für eine Behandlungsanlage für ein langgestrecktes Walzgut |
CN102667400B (zh) * | 2009-10-19 | 2014-11-05 | 新日铁住金株式会社 | 板材的平坦度测量方法以及使用该方法的钢板的制造方法 |
DE102009059765A1 (de) | 2009-12-21 | 2011-06-22 | Daimler AG, 70327 | Verfahren zur Herstellung einer Bipolarplatte |
KR101441226B1 (ko) * | 2010-05-18 | 2014-09-17 | 신닛테츠스미킨 카부시키카이샤 | 판재의 평탄도 측정 방법 및 이것을 이용한 강판의 제조 방법 |
RU2502211C1 (ru) * | 2012-06-19 | 2013-12-20 | Вячеслав Михайлович Смелков | Телевизионная система для наблюдения за перемещением горячего проката |
CN102755998B (zh) * | 2012-07-31 | 2014-06-25 | 宝钢工程技术集团有限公司 | 用于金属带材轧制的中线检测方法 |
CN102873108B (zh) * | 2012-10-12 | 2015-07-29 | 湖南镭目科技有限公司 | 一种线阵相机调节方法及装置 |
DE102014000269B4 (de) | 2014-01-09 | 2023-05-04 | Vdeh-Betriebsforschungsinstitut Gmbh | Verfahren und Vorrichtung zum Ermitteln der Planheit beim Behandeln eines bandförmigen Guts |
US9842152B2 (en) | 2014-02-19 | 2017-12-12 | Snowflake Computing, Inc. | Transparent discovery of semi-structured data schema |
DE102014002454A1 (de) | 2014-02-25 | 2015-08-27 | Vdeh-Betriebsforschungsinstitut Gmbh | Vorrichtung und Verfahren zum Ermitteln von Planheitsabweichungen beim Behandeln eines bandförmigen Guts |
CN104275353B (zh) * | 2014-09-22 | 2016-08-24 | 宁波宝新不锈钢有限公司 | 一种基于板形检测的冷轧带材跑偏自动识别方法 |
CN104353678A (zh) * | 2014-10-13 | 2015-02-18 | 首钢总公司 | 一种线材轧后冷却特性的分析方法 |
EP3138639B1 (de) | 2015-09-03 | 2021-03-24 | SMS group GmbH | Verfahren zum herstellen eines metallischen bandes durch endloswalzen |
DE102015223600A1 (de) | 2015-09-03 | 2017-03-09 | Sms Group Gmbh | Verfahren zum Herstellen eines metallischen Bandes durch Endloswalzen |
CN105841640B (zh) * | 2016-04-29 | 2018-09-18 | 北京航空航天大学 | 平面度误差评定方法及装置 |
DE102017108786A1 (de) | 2017-04-25 | 2018-06-14 | Muhr Und Bender Kg | Verfahren und Vorrichtung zum Ermitteln der Planheit von Bandmaterial und Bearbeitungsanlage mit einer solchen Vorrichtung |
DE102017127470A1 (de) | 2017-11-21 | 2019-05-23 | Sms Group Gmbh | Kühlbalken und Kühlprozess mit variabler Abkühlrate für Stahlbleche |
DE102018104624B3 (de) | 2018-02-28 | 2019-06-13 | VOLAS GmbH | Verfahren und Vorrichtung zur Bestimmung einer Oberfläche |
DE202018101122U1 (de) | 2018-02-28 | 2018-04-10 | VOLAS GmbH | Vorrichtung zur Bestimmung einer Oberfläche |
CN110116138B (zh) * | 2019-06-13 | 2020-04-07 | 沈阳建筑大学 | 一种轧制过程中热态钢板长度及侧弯测量方法 |
DE102020000570A1 (de) | 2020-01-29 | 2021-07-29 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Verfahren zur Überwachung eines Stahlbandes in einer kontinuierlichen Presse und kontinuierliche Presse |
DE102022102645A1 (de) | 2022-02-04 | 2023-08-10 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren und Vorrichtung zur Überwachung einer Materialeigenschaft einer Blech-Komponente |
FR3139895A1 (fr) | 2022-09-16 | 2024-03-22 | Constellium Neuf Brisach | Dispositif et procédé de contrôle de planéité d’une tôle métallique. |
DE102022210959A1 (de) | 2022-10-17 | 2024-04-18 | Sms Group Gmbh | Walzanlage und Verfahren zu deren Betrieb |
DE102022128499B3 (de) | 2022-10-27 | 2023-11-16 | Thyssenkrupp Steel Europe Ag | Verfahren und Vorrichtung zur Bestimmung der Planheit eines Metallbandes |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034427B1 (da) * | 1968-09-18 | 1975-11-08 | ||
GB1307823A (en) * | 1969-09-03 | 1973-02-21 | British Iron Steel Research | Rolling of strip or plate material |
JPS5467549A (en) * | 1977-11-09 | 1979-05-31 | Mitsubishi Electric Corp | Shape controll of rolled material |
JPS54110157A (en) * | 1978-02-17 | 1979-08-29 | Kawasaki Steel Co | Shape control of steel plate in hot rolling mill |
JPS54110158A (en) * | 1978-02-17 | 1979-08-29 | Kawasaki Steel Co | Shape control of steel plate in hot rolling mill |
JPS5542167A (en) * | 1978-09-22 | 1980-03-25 | Nippon Steel Corp | Method and apparatus for shape controlling of reversible rolling mill |
JPS56124006A (en) * | 1980-02-05 | 1981-09-29 | Sumitomo Metal Ind Ltd | Measuring method for flatness of plane plate |
JPS5985952U (ja) * | 1982-12-01 | 1984-06-11 | 住友金属工業株式会社 | スラブプロフイル計 |
US4634279A (en) * | 1984-02-06 | 1987-01-06 | Robotic Vision Systems, Inc. | Method of three-dimensional measurement with few projected patterns |
JPS613007A (ja) * | 1984-06-18 | 1986-01-09 | Hitachi Ltd | 形状検出装置 |
JPS629711A (ja) * | 1985-07-09 | 1987-01-17 | Kawasaki Steel Corp | 薄板熱間圧延ラインの板幅制御方法 |
JPS62158825A (ja) * | 1985-12-28 | 1987-07-14 | Nippon Steel Corp | 熱間圧延鋼板の冷却方法 |
US4782683A (en) * | 1986-03-03 | 1988-11-08 | Tippins Incorporated | Hot strip mill shape processor and method |
GB8621102D0 (en) * | 1986-09-01 | 1986-10-08 | Davy Mckee Sheffield | Hot strip mill |
JPS63207410A (ja) * | 1987-02-24 | 1988-08-26 | Kawasaki Steel Corp | 熱延鋼帯の板幅変動防止方法 |
DE3721746A1 (de) * | 1987-07-01 | 1989-01-19 | Schloemann Siemag Ag | Verfahren und vorrichtung zur messung der planheit von walzband in warmbreitbandstrassen |
US4785683A (en) * | 1987-07-09 | 1988-11-22 | Hayes Industrial Brake, Inc. | Hand operated brake actuator |
JPH02229610A (ja) * | 1989-03-03 | 1990-09-12 | Sumitomo Metal Ind Ltd | 熱間圧延のネッキング防止方法 |
US5016281A (en) * | 1989-06-07 | 1991-05-14 | Comar, Inc. | Image analysis counting system |
DE3930632A1 (de) * | 1989-09-13 | 1991-03-14 | Steinbichler Hans | Verfahren zur direkten phasenmessung von strahlung, insbesondere lichtstrahlung, und vorrichtung zur durchfuehrung dieses verfahrens |
DE4009868A1 (de) * | 1990-03-28 | 1991-10-02 | Schloemann Siemag Ag | Vorrichtung zum kuehlen von walzband |
NL9001164A (nl) * | 1990-05-18 | 1991-12-16 | Hoogovens Groep Bv | Werkwijze en inrichting ter bepaling van de beeldhelderheid van een oppervlak. |
US5309222A (en) * | 1991-07-16 | 1994-05-03 | Mitsubishi Denki Kabushiki Kaisha | Surface undulation inspection apparatus |
US5175601A (en) * | 1991-10-15 | 1992-12-29 | Electro-Optical Information Systems | High-speed 3-D surface measurement surface inspection and reverse-CAD system |
US5225890A (en) * | 1991-10-28 | 1993-07-06 | Gencorp Inc. | Surface inspection apparatus and method |
JP2511391B2 (ja) * | 1991-12-04 | 1996-06-26 | シーメンス アクチエンゲゼルシヤフト | 光学式間隔センサ |
GB9203448D0 (en) * | 1992-02-18 | 1992-04-01 | British Steel Plc | Shape detection |
DE4223846C2 (de) * | 1992-07-20 | 1996-03-28 | Hydromatik Gmbh | Getriebeeinheit zur Anordnung zwischen einem Antriebsmotor und einem Verbraucher |
US5307152A (en) * | 1992-09-29 | 1994-04-26 | Industrial Technology Institute | Moire inspection system |
US5367378A (en) * | 1993-06-01 | 1994-11-22 | Industrial Technology Institute | Highlighted panel inspection |
JPH0763527A (ja) * | 1993-06-30 | 1995-03-10 | Nippon Steel Corp | 形状測定装置 |
JPH07248222A (ja) * | 1994-03-11 | 1995-09-26 | Kawasaki Steel Corp | 熱延鋼板の形状測定方法 |
FR2725512B1 (fr) * | 1994-10-07 | 1996-10-31 | Lorraine Laminage | Dispositif d'evaluation de la planeite d'un produit en defilement |
JPH08311564A (ja) * | 1995-05-12 | 1996-11-26 | Hitachi Ltd | 圧延機用冷却制御装置 |
GB9719361D0 (en) * | 1997-09-11 | 1997-11-12 | Kvaerner Clecim Cont Casting | Hot Flat Rolling Mill Stand and Control Method and Apparatus Therefor |
-
1997
- 1997-03-11 DE DE19709992A patent/DE19709992C1/de not_active Revoked
- 1997-03-11 DE DE19758466A patent/DE19758466B4/de not_active Expired - Fee Related
-
1998
- 1998-03-04 US US09/034,481 patent/US20010012388A1/en not_active Abandoned
- 1998-03-05 DE DE59814362T patent/DE59814362D1/de not_active Expired - Lifetime
- 1998-03-05 DK DK04002747T patent/DK1418400T3/da active
- 1998-03-05 DE DE59813304T patent/DE59813304D1/de not_active Expired - Lifetime
- 1998-03-05 ES ES98103890T patent/ES2258287T3/es not_active Expired - Lifetime
- 1998-03-05 EP EP98103890A patent/EP0864847B1/de not_active Expired - Lifetime
- 1998-03-05 EP EP04002747A patent/EP1418400B1/de not_active Expired - Lifetime
- 1998-03-05 ES ES04002747T patent/ES2326882T3/es not_active Expired - Lifetime
- 1998-03-05 AT AT98103890T patent/ATE314626T1/de active
- 1998-03-05 DK DK98103890T patent/DK0864847T3/da active
- 1998-03-05 AT AT04002747T patent/ATE430915T1/de active
- 1998-03-11 JP JP10078500A patent/JPH112511A/ja active Pending
-
1999
- 1999-11-16 US US09/441,007 patent/US6286349B1/en not_active Expired - Lifetime
-
2003
- 2003-10-02 US US10/677,880 patent/US20050089210A1/en not_active Abandoned
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7242484B2 (en) | 1996-02-12 | 2007-07-10 | Massachusetts Institute Of Technology | Apparatus and methods for surface contour measurement |
US20040105100A1 (en) * | 1996-02-12 | 2004-06-03 | Lyle Shirley | Apparatus and methods for surface contour measurements |
US6690474B1 (en) | 1996-02-12 | 2004-02-10 | Massachusetts Institute Of Technology | Apparatus and methods for surface contour measurement |
US6952270B2 (en) | 1996-02-12 | 2005-10-04 | Massachusetts Institute Of Technology | Apparatus and methods for surface contour measurements |
US20060012802A1 (en) * | 1996-02-12 | 2006-01-19 | Lyle Shirley | Apparatus and methods for surface contour measurement |
US7489820B1 (en) * | 1998-09-14 | 2009-02-10 | Vdeh-Betriebsforschungsinstitut Gmbh | System for measuring the surface geometry and surface evenness of flat products |
US6937350B2 (en) | 2001-06-29 | 2005-08-30 | Massachusetts Institute Of Technology | Apparatus and methods for optically monitoring thickness |
US7026620B2 (en) | 2003-03-20 | 2006-04-11 | Ims Messsysteme Gmbh | Method and device for the geometrical measurement of a material strip |
US20040201859A1 (en) * | 2003-03-20 | 2004-10-14 | Ims Messsysteme Gmbh | Method and device for the geometrical measurement of a material strip |
US20080281543A1 (en) * | 2007-05-07 | 2008-11-13 | General Electric Company | Inspection system and methods with autocompensation for edge break gauging orientation |
US7925075B2 (en) * | 2007-05-07 | 2011-04-12 | General Electric Company | Inspection system and methods with autocompensation for edge break gauging orientation |
US20220238391A1 (en) * | 2021-01-27 | 2022-07-28 | Boe Technology Group Co., Ltd. | Device and system for testing flatness |
US11948845B2 (en) * | 2021-01-27 | 2024-04-02 | Boe Technology Group Co., Ltd. | Device and system for testing flatness |
Also Published As
Publication number | Publication date |
---|---|
US6286349B1 (en) | 2001-09-11 |
ATE430915T1 (de) | 2009-05-15 |
EP0864847A2 (de) | 1998-09-16 |
ATE314626T1 (de) | 2006-01-15 |
JPH112511A (ja) | 1999-01-06 |
US20050089210A1 (en) | 2005-04-28 |
EP0864847B1 (de) | 2005-12-28 |
DE19758466B4 (de) | 2007-10-04 |
EP0864847A3 (de) | 1999-04-07 |
DE19758466A1 (de) | 1998-10-15 |
DE59813304D1 (de) | 2006-02-02 |
EP1418400A3 (de) | 2004-08-04 |
ES2258287T3 (es) | 2006-08-16 |
ES2326882T3 (es) | 2009-10-21 |
DK0864847T3 (da) | 2006-05-15 |
DE19709992C1 (de) | 1998-10-01 |
EP1418400B1 (de) | 2009-05-06 |
EP1418400A2 (de) | 2004-05-12 |
DK1418400T3 (da) | 2009-08-31 |
DE59814362D1 (de) | 2009-06-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6286349B1 (en) | Flatness measurement system for metal strip | |
US9138790B2 (en) | Method for measuring sheet material flatness and method for producing steel sheet using said measuring method | |
JP4797887B2 (ja) | 板材の平坦度測定方法及び板材の平坦度測定装置 | |
US7317542B2 (en) | Method and device for optically measuring the surface shape and for the optical surface inspection of moving strips in rolling and processing installations | |
JP2009512559A (ja) | ストリップエッジの検出をするための方法 | |
KR102615075B1 (ko) | 열간 압연 강대의 사행 제어 방법, 사행 제어 장치 및 열간 압연 설비 | |
KR101734748B1 (ko) | 판재의 평탄도 측정 방법, 판재의 평탄도 측정 장치 및 강판의 제조 방법 | |
US20100236310A1 (en) | Edge flatness monitoring | |
KR100711408B1 (ko) | 강판의 폭 온라인 측정 장치 | |
KR100856276B1 (ko) | 압연 소재 두께 측정 장치 | |
JPS63134903A (ja) | 圧延材の平坦度測定装置 | |
JP2022000314A (ja) | 熱間圧延鋼帯の蛇行量測定装置及び熱間圧延鋼帯の蛇行量測定方法 | |
KR100523099B1 (ko) | 선재압연소재의 단면형상 측정방법 | |
JPH06201347A (ja) | 走行ストリップの形状検出方法、装置及び、圧延装置 | |
JP3388479B2 (ja) | 形状測定方法 | |
KR20010054957A (ko) | 씨씨디카메라와 레이저 슬릿광을 이용한 열연판의 도그본프로파일 측정장치 및 그 측정방법 | |
Noh et al. | Automatic level and bender control for hot finishing mill using flatness measurement of steel strip | |
Isei et al. | Development of a Shape Meter Employing the LED Dot Pattern Projection Method for a Hot Strip Finishing Mill | |
JPS606803A (ja) | 圧延機のワ−クロ−ル形状測定装置 | |
Trusillo et al. | Shapemeter IP-4 on the continuous thermal treatment line of Samara Metallurgical Works | |
KR20090071150A (ko) | 코일의 엣지 크랙 측정 장치 및 방법 | |
JP3010885B2 (ja) | H形鋼ウエブ高さの測定方法および測定装置 | |
Degner et al. | Production of hot wide strip for cold rolling application | |
JPH0426683B2 (da) | ||
JPH0370166B2 (da) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KRUPP-HOESCH-STAHL AG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MULLER, ULRICH;PEUKER, GUSTAV;SONNENSCHEIN, DETLEF;AND OTHERS;REEL/FRAME:009361/0653;SIGNING DATES FROM 19980702 TO 19980721 Owner name: GESELLSCHAFT FUR OPTISCHE MESSTECHNIK GMBH, GERMAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MULLER, ULRICH;PEUKER, GUSTAV;SONNENSCHEIN, DETLEF;AND OTHERS;REEL/FRAME:009361/0653;SIGNING DATES FROM 19980702 TO 19980721 Owner name: BETRIEBSFORSCHUNGSINSTITUT VDEH-INSTITUT FUR ANGEW Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MULLER, ULRICH;PEUKER, GUSTAV;SONNENSCHEIN, DETLEF;AND OTHERS;REEL/FRAME:009361/0653;SIGNING DATES FROM 19980702 TO 19980721 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION |