EP1230992A3 - Method for operating a rolling-mill train and control system for a rolling-mill train - Google Patents

Method for operating a rolling-mill train and control system for a rolling-mill train Download PDF

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Publication number
EP1230992A3
EP1230992A3 EP02000920A EP02000920A EP1230992A3 EP 1230992 A3 EP1230992 A3 EP 1230992A3 EP 02000920 A EP02000920 A EP 02000920A EP 02000920 A EP02000920 A EP 02000920A EP 1230992 A3 EP1230992 A3 EP 1230992A3
Authority
EP
European Patent Office
Prior art keywords
rolling
profile
stand
mill train
rolling stock
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.)
Withdrawn
Application number
EP02000920A
Other languages
German (de)
French (fr)
Other versions
EP1230992A2 (en
Inventor
Ralf Hartmann
Detlef Breunung
Otmar Dr. Palzer
Hans-Jürgen Reismann
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1230992A2 publication Critical patent/EP1230992A2/en
Publication of EP1230992A3 publication Critical patent/EP1230992A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/095—U-or channel sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Abstract

Eine Walzstraße (1) für profiliertes Walzgut, bei der das Walzgut durch eine Anzahl von in einer Walzrichtung (x) aufeinanderfolgenden, jeweils eine Anzahl von Arbeitswalzen umfassenden Walzgerüsten (4, 6, 8) geführt wird, wobei jedes Walzgerüst (4, 6, 8) hinsichtlich seiner Betriebsparameter auf eine Anzahl von Sollwerten (SW) eingestellt wird, soll derart betrieben werden, daß mit vergleichsweise geringem Aufwand die Einhaltung besonders enger Toleranzgrenzen für ein herzustellendes Walzprofil ermöglicht ist. Dazu wird erfindungsgemäß das Profil (54) des auslaufenden Walzguts ermittelt und mit einem Sollprofil verglichen, wobei der oder jeder Sollwert (SW) des oder jedes Walzgerüsts (4, 6, 8) unter Bezugnahme auf einen gerüstspezifischen Wichtungsfaktor (W;) anhand der Abweichungen des ermittelten Profils vom Sollprofil mit einem Korrektursollwert (Ki) beaufschlagt wird. Dazu ist der Walzstraße (1) ein Steuerungssystem (70) zugeordnet, das eine geeignet ausgelegte Steuereinheit (72) sowie eine mit dieser verbundene Meßeinrichtung (82) zur Ermittlung eines Profilkennwerts des auslaufenden Walzguts und ein Speichermodul (84) umfaßt.

Figure 00000001
A rolling mill (1) for profiled rolling stock, in which the rolling stock is guided through a number of rolling stands (4, 6, 8) which follow one another in a rolling direction (x) and each comprise a number of work rolls, each rolling stand (4, 6, 8) is set to a number of setpoints (SW) with regard to its operating parameters, should be operated in such a way that comparatively little effort enables compliance with particularly narrow tolerance limits for a rolled profile to be produced. For this purpose, according to the invention, the profile (54) of the rolling stock being discharged is determined and compared with a target profile, the or each target value (SW) of the or each rolling stand (4, 6, 8) with reference to a stand-specific weighting factor (W;) based on the deviations of the determined profile is acted upon by the target profile with a correction target value (K i ). For this purpose, a control system (70) is assigned to the rolling train (1), which comprises a suitably designed control unit (72) as well as a measuring device (82) connected to this, for determining a profile characteristic of the rolling stock being discharged, and a storage module (84).
Figure 00000001
EP02000920A 2001-02-13 2002-01-16 Method for operating a rolling-mill train and control system for a rolling-mill train Withdrawn EP1230992A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106527A DE10106527A1 (en) 2001-02-13 2001-02-13 Method for operating a rolling mill and control system for a rolling mill
DE10106527 2001-02-13

Publications (2)

Publication Number Publication Date
EP1230992A2 EP1230992A2 (en) 2002-08-14
EP1230992A3 true EP1230992A3 (en) 2004-10-13

Family

ID=7673807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000920A Withdrawn EP1230992A3 (en) 2001-02-13 2002-01-16 Method for operating a rolling-mill train and control system for a rolling-mill train

Country Status (4)

Country Link
US (1) US6601422B2 (en)
EP (1) EP1230992A3 (en)
JP (1) JP2002282916A (en)
DE (1) DE10106527A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014380A1 (en) * 2007-06-11 2009-01-14 ArcelorMittal France Method of rolling a band of metal with adjustment of its lateral position on the one hand and adapted rolling mill
DE102008007247A1 (en) * 2007-09-13 2009-03-19 Siemens Aktiengesellschaft Operating method for a rolling mill with curvature detection
EP2460597A1 (en) * 2010-12-01 2012-06-06 Siemens Aktiengesellschaft Method for controlling a tandem mill train, control and/or regulating device for a tandem mill train, machine-readable programming code, storage medium and tandem mill train
JP6441159B2 (en) * 2015-04-27 2018-12-19 三菱重工業株式会社 Rolling machine
AU2020244877A1 (en) * 2019-03-27 2021-10-14 Sgs North America Inc. Device for test milling an ore sample

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09276914A (en) * 1996-04-18 1997-10-28 Nkk Corp Method and device for rolling h-steel
JPH09314210A (en) * 1996-05-28 1997-12-09 Kobe Steel Ltd Automatic controller for sectional shape of product in bar steel rolling equipment
EP0972581A2 (en) * 1998-07-14 2000-01-19 Sms Schloemann-Siemag Aktiengesellschaft Rolling method for bar-shaped rolling stock, in particular steel bars and wire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694636A (en) * 1970-03-20 1972-09-26 Westinghouse Electric Corp Digital computer process control with operational learning procedure
DE3806063C2 (en) * 1988-02-26 1996-10-17 Schloemann Siemag Ag Method and device for web and flange thickness control in universal scaffolding
DE4391396C2 (en) * 1992-03-27 2000-10-26 Kawasaki Steel Co Process for rolling H-section steel
DE4416364B4 (en) * 1993-05-17 2004-10-28 Siemens Ag Method and control device for regulating a process
US6098060A (en) * 1995-03-16 2000-08-01 Siemens Aktiengesellschaft Process controlling method and device
JPH10235419A (en) * 1997-02-25 1998-09-08 Kawasaki Steel Corp Method for controlling rolling of wide-flange shape steel with universal mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09276914A (en) * 1996-04-18 1997-10-28 Nkk Corp Method and device for rolling h-steel
JPH09314210A (en) * 1996-05-28 1997-12-09 Kobe Steel Ltd Automatic controller for sectional shape of product in bar steel rolling equipment
EP0972581A2 (en) * 1998-07-14 2000-01-19 Sms Schloemann-Siemag Aktiengesellschaft Rolling method for bar-shaped rolling stock, in particular steel bars and wire

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HARTMANN R ET AL: "NEUENTWICKLUNG VON HYDRAULISCHEN ANSTELL- UND REGELSYSTEMEN SOWIE PROFILVERMESSUNG IN WALZWERKEN FÜR LANGPRODUKTE; NEWLY DEVELOPED HYDRAULIC SCREWDOWN AND CONTROL SYSTEMS AND SHAPE MEASUREMENT OF LONG PRODUCTS IN ROLLING MILLS", STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DÜSSELDORF, DE, vol. 121, no. 4, 17 April 2001 (2001-04-17), pages 81 - 86, XP001065763, ISSN: 0340-4803 *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *

Also Published As

Publication number Publication date
US6601422B2 (en) 2003-08-05
EP1230992A2 (en) 2002-08-14
DE10106527A1 (en) 2002-08-29
JP2002282916A (en) 2002-10-02
US20020112514A1 (en) 2002-08-22

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