DE58909588D1 - Method and device for regulating the strip width in hot strip rolling - Google Patents

Method and device for regulating the strip width in hot strip rolling

Info

Publication number
DE58909588D1
DE58909588D1 DE58909588T DE58909588T DE58909588D1 DE 58909588 D1 DE58909588 D1 DE 58909588D1 DE 58909588 T DE58909588 T DE 58909588T DE 58909588 T DE58909588 T DE 58909588T DE 58909588 D1 DE58909588 D1 DE 58909588D1
Authority
DE
Germany
Prior art keywords
strip
supply
width
rolling
controller
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.)
Expired - Fee Related
Application number
DE58909588T
Other languages
German (de)
Inventor
Reinhold Dorna
Ulrich Klaffehn
Wolfgang Koehler
Bruno Kott
Guenter Menzel
Winfried Prof Dr Speth
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.)
Salzgitter AG
Original Assignee
PREUSSAG STAHL AG 31226 PEINE DE
Preussag Stahl 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
Priority claimed from DE19883843731 external-priority patent/DE3843731A1/en
Priority claimed from DE19883843730 external-priority patent/DE3843730C2/en
Application filed by PREUSSAG STAHL AG 31226 PEINE DE, Preussag Stahl AG filed Critical PREUSSAG STAHL AG 31226 PEINE DE
Application granted granted Critical
Publication of DE58909588D1 publication Critical patent/DE58909588D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control
    • 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
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
    • 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
    • B21B37/72—Rear end control; Front end control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2271/00—Mill stand parameters
    • B21B2271/02—Roll gap, screw-down position, draft position

Landscapes

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

Abstract

The invention relates to a method and a device for controlling the strip width during the hot-rolling of strip on a multiple-stand finishing line of a rolling mill train in which the speeds of the working rolls of each stand are controlled as a function of the instantaneous operating state. Here, the strip widths are sensed directly after the last reduction per pass and/or before the penultimate reduction per pass and are compared with the desired width in a width controller. In the event of deviations, a strip-supply controller for the strip supply between the last stands is acted upon, which strip-supply controller, by adjusting the roll nips, corrects the strip supply and the tensile stress of the strip in such a way that the strip width changes. The method is optimized by additional control of the strip thickness according to the novel strip-supply principle as well as by dispensing with some loop lifters. <IMAGE>
DE58909588T 1988-12-22 1989-12-22 Method and device for regulating the strip width in hot strip rolling Expired - Fee Related DE58909588D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883843731 DE3843731A1 (en) 1988-12-22 1988-12-22 Method and apparatus for hot-strip rolling
DE19883843730 DE3843730C2 (en) 1988-12-22 1988-12-22 Method and device for regulating the strip width in hot strip rolling

Publications (1)

Publication Number Publication Date
DE58909588D1 true DE58909588D1 (en) 1996-03-14

Family

ID=25875619

Family Applications (2)

Application Number Title Priority Date Filing Date
DE58909588T Expired - Fee Related DE58909588D1 (en) 1988-12-22 1989-12-22 Method and device for regulating the strip width in hot strip rolling
DE58909734T Expired - Fee Related DE58909734D1 (en) 1988-12-22 1989-12-22 Method and device for hot strip rolling

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE58909734T Expired - Fee Related DE58909734D1 (en) 1988-12-22 1989-12-22 Method and device for hot strip rolling

Country Status (3)

Country Link
EP (2) EP0375095B1 (en)
AT (2) ATE142916T1 (en)
DE (2) DE58909588D1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543605A1 (en) * 1995-11-23 1997-05-28 Schloemann Siemag Ag Process for cross-sectional control of rolling stock
WO1999024184A1 (en) * 1997-11-07 1999-05-20 Siemens Aktiengesellschaft Process and device for rolling a metal strip
EP2998040A1 (en) 2014-09-17 2016-03-23 Primetals Technologies Germany GmbH Width adjustment in a finishing train
EP3216881B1 (en) * 2014-11-05 2021-09-08 Nippon Steel Corporation Steel sheet manufacturing method and steel sheet manufacturing device
CN108568452B (en) * 2017-03-11 2020-04-28 深圳格林德能源集团有限公司 Full-automatic closed three-roller pole piece rolling mill for lithium ion battery
DE102017108786A1 (en) * 2017-04-25 2018-06-14 Muhr Und Bender Kg Method and device for determining the flatness of strip material and processing plant with such a device
CN107030120B (en) * 2017-05-31 2018-11-09 南京钢铁股份有限公司 The accuracy control method of ship plate thickness deviation
CN110961469B (en) * 2019-12-19 2021-04-27 北京首钢股份有限公司 Method and device for controlling stability of strip steel head
CN113522996B (en) * 2020-04-21 2022-08-16 宝山钢铁股份有限公司 Method and device for automatically calibrating side guide plate of medium and heavy plate mill by using width gauge
CN113909307B (en) * 2021-08-30 2024-03-15 北京首钢自动化信息技术有限公司 Loop control method and device
CN113909300A (en) * 2021-09-26 2022-01-11 重庆钢铁股份有限公司 Power-saving control system and method for roller way of medium plate finishing mill
CN114653759B (en) * 2022-04-01 2023-12-12 浙江水利水电学院 Hot rolled strip steel width adjusting device and method based on rolling force control
CN114951295B (en) * 2022-05-05 2023-04-07 福建三宝特钢有限公司 Two high stick rolling systems of segmentation based on loop control

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2249366A1 (en) * 1971-10-11 1973-04-19 Hitachi Ltd METHOD AND DEVICE FOR MONITORING AND CONTROLLING THE WIDTH OF A ROLLED STRIP
JPS6024726B2 (en) * 1977-03-31 1985-06-14 株式会社日立製作所 Rolling mill tension control method
JPS5820313A (en) * 1981-07-29 1983-02-05 Sumitomo Metal Ind Ltd Controlling method for rolling mill
JPS58192606A (en) * 1983-03-10 1983-11-10 Ishikawajima Harima Heavy Ind Co Ltd Rolling device
JPS6130211A (en) * 1984-07-23 1986-02-12 Fuji Electric Co Ltd Operation control device of multistand continuous-rolling equipment
FR2568496B1 (en) * 1984-08-01 1987-01-30 Laminage Continu Ste Lorrai Me METHOD AND DEVICE FOR ADJUSTING SYNCHRONISM IN A FLAT ROLLING MILL.
JP2510506B2 (en) * 1986-02-15 1996-06-26 新日本製鐵株式会社 Method and apparatus for controlling inter-stand tension of hot strip steel finish rolling mill
JPS6368207A (en) * 1986-09-08 1988-03-28 Kobe Steel Ltd Sheet width control method for tandem rolling
DE3637043A1 (en) * 1986-10-30 1988-05-05 Licentia Gmbh Method for the predetermined maintenance of narrow thickness tolerances during the rolling of rolling stock in hot-strip rolling trains
JPS63203209A (en) * 1987-02-19 1988-08-23 Sumitomo Metal Ind Ltd Control method for sheet width in hot continuous rolling mill
JPH01258807A (en) * 1988-04-05 1989-10-16 Sumitomo Metal Ind Ltd Controlling method for plate width in tandem mill
DE3828495A1 (en) * 1988-08-23 1990-03-01 Betr Forsch Inst Angew Forsch Method and apparatus for controlling the tension in the rolling stock between rolling stands

Also Published As

Publication number Publication date
EP0375095A2 (en) 1990-06-27
ATE142916T1 (en) 1996-10-15
DE58909734D1 (en) 1996-10-24
EP0375094A2 (en) 1990-06-27
EP0375094B1 (en) 1996-09-18
ATE133591T1 (en) 1996-02-15
EP0375094A3 (en) 1992-12-23
EP0375095A3 (en) 1992-12-23
EP0375095B1 (en) 1996-01-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SALZGITTER AG, 31226 PEINE, DE

8339 Ceased/non-payment of the annual fee