EP1993749B1 - Walzverfahren für ein walzgut zum einbringen einer stufe in das walzgut - Google Patents

Walzverfahren für ein walzgut zum einbringen einer stufe in das walzgut Download PDF

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Publication number
EP1993749B1
EP1993749B1 EP07712181A EP07712181A EP1993749B1 EP 1993749 B1 EP1993749 B1 EP 1993749B1 EP 07712181 A EP07712181 A EP 07712181A EP 07712181 A EP07712181 A EP 07712181A EP 1993749 B1 EP1993749 B1 EP 1993749B1
Authority
EP
European Patent Office
Prior art keywords
rolling
point
rolling stock
rolled product
rolled
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.)
Active
Application number
EP07712181A
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German (de)
English (en)
French (fr)
Other versions
EP1993749A1 (de
Inventor
Edmund Koh
Dirk Krautwurst
Birger Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to PL07712181T priority Critical patent/PL1993749T3/pl
Publication of EP1993749A1 publication Critical patent/EP1993749A1/de
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Publication of EP1993749B1 publication Critical patent/EP1993749B1/de
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    • 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-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
    • B21B1/22—Metal-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 plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-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 plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work

Definitions

  • the present invention relates to a rolling process for a rolling stock, in particular a strip-shaped rolling stock having a rolling stock and a rolling stock, wherein the rolling stock, starting with the beginning of rolled stock, is rolled in a nip of a rolling stand to a first nominal dimension.
  • the present invention further relates to a data carrier having a computer program stored on the data carrier, the computer program comprising machine code, wherein the machine code causes the execution of such a rolling process when the machine code is executed by a control computer for a rolling stand.
  • the present invention also relates to a control computer for a rolling mill, which is designed - in particular programmed - that the rolling mill is controlled by him according to such a rolling process.
  • Rolling process, data carrier and control computer of the type mentioned are well known.
  • the entire rolling stock ie from the beginning of the rolling stock to the end of the rolling stock, is rolled to the first nominal dimension.
  • a rolling method is known in which is determined by a control computer during rolling of the rolling stock in the rolling mill continuously, which point of the rolling stock is currently in the nip, and the rolling of the rolling stock is terminated on the first target dimension, if just in the nip located location of the rolling stock corresponds to a predetermined first point of change of the rolling stock, which lies between the beginning of rolling stock and the rolling stock.
  • After reaching the first point of change of the rolling process is reversed, so that the rolling stock passes through the rolling mill after reaching the first point of change backwards.
  • the rolling gap of the roll stand is not changed in this case, so that the reversing stitch is performed as a smoothing pass.
  • JP 60 037 201 A Of the JP 60 037 201 A a similar disclosure can be found.
  • the object of the present invention is to provide a rolling method, a data carrier and a control computer for a rolling stand, by means of which a rolling stock can be produced, which is integrally formed and longitudinally has at least two sections which have different dimensions, wherein the rolling process should be independent of whether the roll gap is adjustable only in the load-free state or under load.
  • the object is achieved for the rolling process in that the rolling stand is driven up when the location of the rolling stock, which is currently in the nip corresponds to the first point of change, so that in the rolling stock at the first point of change a first stage is introduced and the Rolling material passes through the roll gap after driving up the rolling mill without deformation.
  • the task for the data carrier is achieved in that a computer program is stored on it, which serves to carry out such a rolling process when the computer program is executed by a control computer for a rolling stand.
  • control computer for a rolling stand which is designed in such a way, in particular programmed, that the rolling mill is controlled by him according to such a rolling process.
  • the deformation-free passage of the rolling stock through the - then ramped - roll stand can alternatively forward (ie in the previous rolling direction) or backwards.
  • the rolling stock is rolled to a third nominal dimension in the rolling nip of the roll stand after rolling to the first nominal dimension, starting with the start of rolling stock, until the location of the rolling stock that is currently in the nip corresponds to a second point of change.
  • the second point of change may lie between the beginning of the rolling stock and the first point of change, so that a second step is introduced into the rolling stock at the second point of change.
  • the second change point may also correspond to the first change point, so that the first level is increased.
  • the rolling stock when the rolling stock has completely passed through the rolling stand, it is possible for the rolling stock to be rolled to a second nominal dimension starting from the rolling stock end until the point currently in the nip corresponds to a second point of change between the first point of change and the rolling stock end, so that in the rolling stock at the second point of change, a second stage is introduced. Also in this case, of course, at the second point of change, the rolling is completed to the second nominal dimension and the rolling stand ascended.
  • the rolling stock 1 is preferably a strip-shaped rolling stock 1. However, it would also be possible to roll a bar-shaped rolling stock or a tubular rolling stock.
  • Rolling of the rolling mill is rolled to a third target dimension until the location of the rolling stock, which is currently in the nip, corresponds to a second point of change.
  • the second point of change may lie between the beginning of the rolling stock and the first point of change, so that a second step is introduced into the rolling stock at the second point of change.
  • the second change point may also correspond to the first change point, so that the first level is increased.
  • the rolling stock when the rolling stock has completely passed through the rolling stand, it is possible for the rolling stock to be rolled to a second nominal dimension starting from the rolling stock end until the point currently in the nip corresponds to a second point of change between the first point of change and the rolling stock end, so that in the rolling stock at the second point of change, a second stage is introduced. Also in this case, of course, at the second point of change, the rolling is completed to the second target dimension.
  • the rolling stock 1 is preferably a strip-shaped rolling stock 1. However, it would also be possible to roll a bar-shaped rolling stock or a tubular rolling stock.
  • the rolling stock 1 has a rolling stock 2 and a rolling stock 3. Furthermore, at least one change point 4 - hereinafter referred to as the first change point 4 - marked.
  • the point of change 4 is preferably not defined by its distance to the start of rolling stock 2 or to the rolling stock 3, since this distance changes during rolling of the rolling stock 1.
  • the point of change 4 is preferably determined by the amount of material of the rolling stock 1, which is located between the change point 4 and the beginning of rolling stock 2 and the rolling stock 3.
  • the rolling stock 1 is rolled in a roll stand 5.
  • the rolling stand 5 in turn is controlled by a control computer 6.
  • the control computer 6 is supplied with a computer program 7.
  • the feeding of the computer program 7 can take place, for example, by means of a transportable or another data carrier 8 on which the computer program 7 is stored in (exclusively) machine-readable form.
  • the control computer 6 is programmed (or formed more generally) in such a way that it carries out a rolling process, which is described below in connection with FIGS FIGS. 2 to 14 is described.
  • FIG. 2 controls the control computer 6 in a step S1, the rolling mill 5 such that the rolling stock 1 from the rolling stock 2 to a first nominal dimension d1 * (in a strip-shaped rolling stock 1 so to a first target thickness d1 *) is rolled.
  • the determination of the required control parameters for the roll stand 5 by means of a pass schedule and the framework parameters of the roll stand 5 is well known to those skilled in the art.
  • control computer 6 determines which point 10 of the rolling stock 1 is currently located in the nip 9.
  • the determination of the point 10 can be made for example via a well-known material tracking 11.
  • step S3 the control computer 6 compares the point 10 ascertained in step S2 with the first point of change 4. If the first point of change 4 has not yet been reached - see, for example, FIG. B. FIG. 3 the control computer 6 returns to step S2. On the basis of this return to step S2, on the one hand, the rolling process started in step S1 is continued. On the other hand, the step S2 is executed again, so that as a result of the control computer 6 during the rolling of the rolling stock 1 in the rolling mill 5 continuously determines which point 10 of the rolling stock 1 is currently in the nip 9.
  • step S5 can be of different nature.
  • the rolling mill 5 (of course, due to a corresponding control by the control computer 6) ascended when the point 10, which is currently located in the nip 9, corresponds to the first point of change 4.
  • the driving of the roll stand 5 has the advantage that it also means. Actuators is possible, which can only be moved without load. Then, the rolling stock 1 forward (see arrow V) or backwards (see arrow R) removed from the roll stand 5. The rolling stock 1 therefore passes through the rolling gap 9, since the roll stand 5 is driven up, the roll gap 9 without deformation.
  • the second setpoint dimension d2 * may be smaller than the first setpoint dimension d1 *. Preferably, it is greater than the first nominal dimension d1 *, since in this case a faster adjustment to the second nominal dimension d2 * is possible.
  • the procedure for introducing the second stage 14 at the second point of change 14 is completely analogous to the introduction of the first level 12 at the first point of change 4. Of detailed explanations this is therefore omitted.
  • the measures that are taken after the introduction of the second stage 14, are completely analogous to the measures that are taken after the introduction of the first stage 12 at the first point of change 4.
  • the roll stand 5 can be ascended - see FIG. 8 -, the rolling process is continued with another target dimension, etc ..
  • nip 9 is adjustable under load, it is - starting from the in FIG. 4 state shown - in the context of step S5 also possible, the rolling process to continue reaching the first point of change 4, but the rolling stock 1 is rolled in the direction of the beginning of rolling stock 2. In this case, the rolling stock is rolled to a second nominal dimension d3 *, the second nominal dimension d3 * - comparing FIG. 9 is smaller than the first target dimension d1 *.
  • the rolling stock 1 is rolled only from a point which lies between the first point of change 4 and the Walzgutahfang 2.
  • the rolling to the second nominal dimension d3 * is started directly at the first point of change 4.
  • the rolling of the rolling stock 1 to the second target dimension d3 * is terminated when the point 10 of the rolling stock 1, which is currently in the nip 9, corresponds to a predetermined second change point 15.
  • the second point of change 15 is in this case between the start of rolling 2 and the first point of change 4.
  • a second stage 16 is introduced into the rolling stock 1 at the second point of change 15. This is in FIG. 10 shown.
  • the rolling stock 1 will be rolled to the second target dimension d3 * until the beginning of rolling stock 2. This condition is in FIG. 11 shown.
  • the rolling stock 1 When the rolling stock 1 has been completely withdrawn from the roll gap 9, ie up to and including the beginning of the rolling stock 2, it is possible for the rolling stock 1 after rolling to reach the first nominal dimension d1 * or - in the case of the embodiment according to FIG. 11 after rolling to the second target dimension d3 * - to roll to a third target dimension d5 *.
  • the rolling process is started with the start of rolling 2 and listed until the point 10 of the rolling stock 1, which is currently located in the nip 9, corresponds to a second point of change 19.
  • FIG. 15 has a plurality of sections 21 to 25, which have different dimensions d1 to d5.
  • the generation of in FIG. 15 shown rolling stock 1 is particularly possible even if the rolling stand 5 has adjusting devices for adjusting the roll gap 9, which are only in the load-free state, so not under load adjustable.
  • the procedures described above are almost arbitrarily combinable with each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
EP07712181A 2006-03-15 2007-02-08 Walzverfahren für ein walzgut zum einbringen einer stufe in das walzgut Active EP1993749B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07712181T PL1993749T3 (pl) 2006-03-15 2007-02-08 Sposób walcowania materiału walcowanego umożliwiający wykonywanie stopnia na materiale walcowanym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006011939A DE102006011939A1 (de) 2006-03-15 2006-03-15 Walzverfahren für ein Walzgut zum Einbringen einer Stufe in das Walzgut
PCT/EP2007/051221 WO2007104616A1 (de) 2006-03-15 2007-02-08 Walzverfahren für ein walzgut zum einbringen einer stufe in das walzgut

Publications (2)

Publication Number Publication Date
EP1993749A1 EP1993749A1 (de) 2008-11-26
EP1993749B1 true EP1993749B1 (de) 2012-07-11

Family

ID=37946681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07712181A Active EP1993749B1 (de) 2006-03-15 2007-02-08 Walzverfahren für ein walzgut zum einbringen einer stufe in das walzgut

Country Status (9)

Country Link
US (1) US8356504B2 (zh)
EP (1) EP1993749B1 (zh)
KR (1) KR101357099B1 (zh)
CN (1) CN101400457B (zh)
DE (1) DE102006011939A1 (zh)
PL (1) PL1993749T3 (zh)
RU (1) RU2432219C2 (zh)
UA (1) UA96286C2 (zh)
WO (1) WO2007104616A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049062B3 (de) * 2007-10-12 2009-03-12 Siemens Ag Betriebsverfahren zum Einbringen eines Walzguts in ein Walzgerüst eines Walzwerks, Steuereinrichtung und Walzwerk zum Walzen eines bandförmigen Walzgutes
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
DE102012218353A1 (de) * 2012-10-09 2014-04-10 Siemens Ag Breitenbeeinflussung eines bandförmigen Walzguts
GB2518444A (en) * 2013-09-24 2015-03-25 Siemens Ag Rolling Method
DE102014201611A1 (de) * 2014-01-30 2015-07-30 Volkswagen Aktiengesellschaft Bidirektionale Tailored Rolled Platine
CN104741377B (zh) * 2015-03-30 2017-01-04 宝山钢铁股份有限公司 具有纵向不同厚度的板材的轧制方法
JP6674349B2 (ja) 2016-07-21 2020-04-01 株式会社日立製作所 圧延制御装置、圧延制御方法およびプログラム
CN108397681A (zh) * 2017-02-08 2018-08-14 鞍钢股份有限公司 一种纵向异形截面钢板及其生产方法
CN108397682A (zh) * 2017-02-08 2018-08-14 鞍钢股份有限公司 一种纵向异形断面钢板及其生产方法
EP3566790B1 (de) * 2018-05-08 2021-01-06 Muhr und Bender KG Verfahren zur dynamischen walzspaltregelung beim flexiblen walzen von metallbändern

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
JPS5024899B2 (zh) 1971-09-18 1975-08-19
SU745548A1 (ru) 1977-12-23 1980-07-07 Институт Минералогии,Геохимии И Кристаллохимии Редких Элементов Электромагнитное вибрационное устройство
US4248072A (en) * 1978-07-25 1981-02-03 Aichi Steel Works, Limited Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation
SU871957A1 (ru) 1979-09-20 1981-10-15 Ордена Трудового Красного Знамени Днепродзержинский Индустриальный Институт Способ прот жки заготовок круглого сечени
JPS6037201A (ja) * 1983-08-08 1985-02-26 Kawasaki Steel Corp 厚板の差厚圧延方法
JPS60106613A (ja) * 1983-11-14 1985-06-12 Mitsubishi Electric Corp プレ−トミルにおける異厚圧延位置制御装置
JPS61103603A (ja) * 1984-10-24 1986-05-22 Kawasaki Steel Corp 複数の厚み段差を有する厚鋼板の製造方法
JPS61172603A (ja) * 1985-01-29 1986-08-04 Sumitomo Metal Ind Ltd 厚板圧延法
US4793169A (en) * 1986-06-27 1988-12-27 United Engineering, Inc. Continuous backpass rolling mill
JPS6487007A (en) * 1987-09-30 1989-03-31 Toshiba Corp System for controlling rolling
KR100349159B1 (ko) * 1998-12-24 2002-11-18 주식회사 포스코 길이방향 두께차를 갖는 후판의 제조방법
DE10004532A1 (de) * 2000-02-02 2001-08-30 Josef Froehling Gmbh Walzwerks Vorrichtung zum Walzen von Bändern mit periodisch veränderlicher Bandenddicke
JP4203328B2 (ja) * 2003-01-21 2008-12-24 新日本製鐵株式会社 テーパープレートの製造方法

Also Published As

Publication number Publication date
KR101357099B1 (ko) 2014-02-03
RU2008140733A (ru) 2010-04-20
CN101400457B (zh) 2011-08-03
US20090306810A1 (en) 2009-12-10
EP1993749A1 (de) 2008-11-26
RU2432219C2 (ru) 2011-10-27
WO2007104616A1 (de) 2007-09-20
UA96286C2 (ru) 2011-10-25
KR20080102308A (ko) 2008-11-24
DE102006011939A1 (de) 2007-09-27
PL1993749T3 (pl) 2012-12-31
US8356504B2 (en) 2013-01-22
CN101400457A (zh) 2009-04-01

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