ATE228401T1 - FLATNESS CONTROL TO ACHIEVE PLANNING COLD STRIP - Google Patents

FLATNESS CONTROL TO ACHIEVE PLANNING COLD STRIP

Info

Publication number
ATE228401T1
ATE228401T1 AT00929223T AT00929223T ATE228401T1 AT E228401 T1 ATE228401 T1 AT E228401T1 AT 00929223 T AT00929223 T AT 00929223T AT 00929223 T AT00929223 T AT 00929223T AT E228401 T1 ATE228401 T1 AT E228401T1
Authority
AT
Austria
Prior art keywords
strip
distribution
stresses
rolls
actual
Prior art date
Application number
AT00929223T
Other languages
German (de)
Inventor
Folker Haase
Wolfgang Sauer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7901905&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE228401(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sms Demag Ag filed Critical Sms Demag Ag
Application granted granted Critical
Publication of ATE228401T1 publication Critical patent/ATE228401T1/en

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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B21B2261/21—Temperature profile

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electrotherapy Devices (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)

Abstract

The invention relates to a method for rolling a strip in a strip rolling mill which has at least two roll stands or an individual stand with upper and lower, optionally adjustable working rolls respectively, said rolls being optionally supported indirectly on support rolls or with intermediate rolls. At least one pass is rolled in said rolls in order to modify the state of the rolled strip. A target distribution of stresses or any target form of unevenness is predetermined for the rolled strip and compared with the actual distribution of stresses and the mechanical or physical control elements are employed in such a way as to minimise the difference between the predetermined and actual distribution of stresses as far as possible. In addition to the actual distribution of stresses in the hot strip, the distribution of temperature over the width of the strip is determined and used to calculate the distribution of stresses which would be present after the strip has cooled if the strip were free of stresses in the hot state with the distribution of temperature that exists behind the roll gap and this temperature-induced distribution of stresses is used to correct the actual stress before this is compared with the target form of unevenness.
AT00929223T 1999-03-15 2000-03-14 FLATNESS CONTROL TO ACHIEVE PLANNING COLD STRIP ATE228401T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912796A DE19912796A1 (en) 1999-03-15 1999-03-15 Flatness control to achieve flat cold strip
PCT/DE2000/000831 WO2000054900A1 (en) 1999-03-15 2000-03-14 Control of surface evenness for obtaining even cold strip

Publications (1)

Publication Number Publication Date
ATE228401T1 true ATE228401T1 (en) 2002-12-15

Family

ID=7901905

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00929223T ATE228401T1 (en) 1999-03-15 2000-03-14 FLATNESS CONTROL TO ACHIEVE PLANNING COLD STRIP

Country Status (11)

Country Link
EP (1) EP1161313B1 (en)
JP (1) JP2003504206A (en)
KR (1) KR20010112335A (en)
CN (1) CN1343146A (en)
AT (1) ATE228401T1 (en)
AU (1) AU4741600A (en)
BR (1) BR0009025A (en)
DE (2) DE19912796A1 (en)
ES (1) ES2182801T3 (en)
TR (1) TR200102682T2 (en)
WO (1) WO2000054900A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100843964B1 (en) * 2006-12-22 2008-07-04 주식회사 포스코 How to prevent bending at the tip of rolled steel
CN101362154B (en) * 2008-09-28 2010-06-23 东北大学 Device and method for measuring roll diameter and width of coil in strip rolling
CN101507975B (en) * 2009-03-20 2012-01-04 燕山大学 Comprehensive treatment method of double-frame UCM finisher strip-steel surface color-deviation defect
CN101623707B (en) * 2009-08-05 2011-05-25 燕山大学 Design Method of Flatness Standard Curve for Continuous Rolling Mill
JP4918155B2 (en) 2010-09-28 2012-04-18 三菱日立製鉄機械株式会社 Hot rolled steel strip manufacturing apparatus and manufacturing method
CN105689405B (en) * 2016-01-28 2018-02-02 燕山大学 A kind of intelligent establishing method of the online target flatness of cold-strip
CN108416171A (en) * 2018-04-03 2018-08-17 中民筑友有限公司 Technique profile design drawing generating method, system, device and readable storage medium storing program for executing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927769C2 (en) * 1979-07-10 1987-01-22 SMS Schloemann-Siemag AG, 4000 Düsseldorf Device for controlling the flatness of strip-shaped metal rolling stock in a cold rolling mill
JPS57156821A (en) * 1981-03-24 1982-09-28 Toshiba Corp Controlling method for shape
JPS6021113A (en) * 1983-07-15 1985-02-02 Nippon Steel Corp Controlling method of shape in hot rolling of strip
DE3735022A1 (en) * 1987-06-02 1988-12-22 Escher Wyss Ag METHOD AND DEVICE FOR ROLLING METAL BANDS
JPH02207909A (en) * 1989-02-06 1990-08-17 Sumitomo Metal Ind Ltd Method for online measuring shape of hot rolled material
JPH02255209A (en) * 1989-03-30 1990-10-16 Nippon Steel Corp Shape control method for warm or cold rolling of sheet
JPH03285707A (en) * 1990-03-30 1991-12-16 Kobe Steel Ltd Control method of sheet crown at the time of hot rolling
JP2758490B2 (en) * 1990-08-21 1998-05-28 新日本製鐵株式会社 Shape control method in sheet rolling
JPH04300008A (en) * 1991-03-28 1992-10-23 Nippon Steel Corp Method for controlling temperature distribution in direction of inner breadth
JPH0615321A (en) * 1992-06-30 1994-01-25 Kawasaki Steel Corp Shape control method in plate rolling
DE19654068A1 (en) * 1996-12-23 1998-06-25 Schloemann Siemag Ag Method and device for rolling a rolled strip

Also Published As

Publication number Publication date
BR0009025A (en) 2001-12-26
DE50000828D1 (en) 2003-01-09
AU4741600A (en) 2000-10-04
ES2182801T3 (en) 2003-03-16
CN1343146A (en) 2002-04-03
TR200102682T2 (en) 2002-04-22
DE19912796A1 (en) 2000-10-12
EP1161313A1 (en) 2001-12-12
EP1161313B1 (en) 2002-11-27
JP2003504206A (en) 2003-02-04
WO2000054900A1 (en) 2000-09-21
KR20010112335A (en) 2001-12-20

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Legal Events

Date Code Title Description
RZN Patent revoked