EP2554284A4 - Rolling of metal strip - Google Patents

Rolling of metal strip

Info

Publication number
EP2554284A4
EP2554284A4 EP11762311.6A EP11762311A EP2554284A4 EP 2554284 A4 EP2554284 A4 EP 2554284A4 EP 11762311 A EP11762311 A EP 11762311A EP 2554284 A4 EP2554284 A4 EP 2554284A4
Authority
EP
European Patent Office
Prior art keywords
force
rolling
bending force
roll
decrease
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.)
Granted
Application number
EP11762311.6A
Other languages
German (de)
French (fr)
Other versions
EP2554284B1 (en
EP2554284A1 (en
Inventor
Shigeru Ogawa
Tsuyoshi Higo
Kunihiko Wakatsuki
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel and Sumitomo Metal Corp
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 Nippon Steel and Sumitomo Metal Corp filed Critical Nippon Steel and Sumitomo Metal Corp
Publication of EP2554284A1 publication Critical patent/EP2554284A1/en
Publication of EP2554284A4 publication Critical patent/EP2554284A4/en
Application granted granted Critical
Publication of EP2554284B1 publication Critical patent/EP2554284B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends

Landscapes

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

Abstract

The present invention has as its task to be able to impart a high response crown/shape control function to a rolling mill with a response of decrease bending devices inferior to increase bending devices even under conditions causing a decrease roll bending force to act. To achieve this task, before the start of rolling, both the increase bending force and the decrease bending force are made to act and the composite force constituted by a roll bending force which corresponds to the roll balance force is made to act on a work roll chock. At the time of the start of rolling, the decrease bending force is held at a constant value while the increase bending force is made to change and a composite force constituted by a predetermined roll bending force (decrease bending force) is made to act on the work roll chock for rolling. At the time of the end of rolling, the increase bending force is returned to the state before the start of rolling and a composite force with the decrease bending force constituted by the roll bending force corresponding to the roll balance force is made to act on the work roll chock. In that state, the rolling is ended.
EP11762311.6A 2010-03-31 2011-01-12 Rolling method of metal flat-rolled product Active EP2554284B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010084054 2010-03-31
PCT/JP2011/050785 WO2011122070A1 (en) 2010-03-31 2011-01-12 Rolling of metal strip

Publications (3)

Publication Number Publication Date
EP2554284A1 EP2554284A1 (en) 2013-02-06
EP2554284A4 true EP2554284A4 (en) 2013-12-04
EP2554284B1 EP2554284B1 (en) 2014-11-19

Family

ID=44711823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11762311.6A Active EP2554284B1 (en) 2010-03-31 2011-01-12 Rolling method of metal flat-rolled product

Country Status (6)

Country Link
EP (1) EP2554284B1 (en)
KR (1) KR101300237B1 (en)
CN (1) CN102834192B (en)
BR (1) BR112012024207A2 (en)
TW (1) TWI401123B (en)
WO (1) WO2011122070A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237609B (en) * 2011-03-24 2014-05-28 新日铁住金株式会社 Rolling mill and rolling method for metal sheet material
TWI472382B (en) * 2012-02-16 2015-02-11 China Steel Corp Calculation method of reduction amount of finish rolling in hot rolling process
TWI455766B (en) * 2012-02-20 2014-10-11 China Steel Corp Calculation method for the crown height of the finishing stand
JP6152320B2 (en) * 2013-08-19 2017-06-21 新日鉄住金エンジニアリング株式会社 Metal plate rolling method and metal plate rolling machine
CN105414203B (en) * 2015-12-10 2017-11-03 安徽马钢自动化信息技术有限公司 A kind of method for improving polishing machine HGC hydraulic cylinder roll-force control accuracies
TWI740494B (en) * 2020-05-12 2021-09-21 中國鋼鐵股份有限公司 Roll inspection method and roll inspection system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864955A (en) * 1973-12-04 1975-02-11 Blaw Knox Foundry Mill Machine Rolling mill stand
DE3601239A1 (en) * 1986-01-17 1987-07-23 Schloemann Siemag Ag Bending device for the axially displaceable working rolls of a four-high stand

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62142403U (en) * 1986-02-28 1987-09-08
JPS63199006A (en) * 1987-02-12 1988-08-17 Nippon Steel Corp Work roll bending method for rolling mill
US4803865A (en) * 1987-07-17 1989-02-14 SMS Schloemann--Siemag Aktiengesellschaft Stand-supported bending device for axially slidable rolls of a multiroll rolling mill
JPH02280910A (en) * 1989-04-20 1990-11-16 Kawasaki Steel Corp Rolling machine
JP3167439B2 (en) 1992-08-07 2001-05-21 川崎製鉄株式会社 Endless rolling method
JPH08215730A (en) * 1995-02-21 1996-08-27 Nippon Steel Corp Roll bending equipment and plate rolling method of plate rolling mill
DE69840192D1 (en) * 1998-02-27 2008-12-18 Nippon Steel Corp FLAT ROLLING AND BLECH ROLLING
JP3879239B2 (en) * 1998-03-24 2007-02-07 Ｊｆｅスチール株式会社 Crown control method
CN100579679C (en) * 2007-03-29 2010-01-13 中冶南方工程技术有限公司 Method and apparatus for flattening high-deep drawing performance cold-rolling band steel
EP2248609B1 (en) * 2008-03-04 2014-07-09 Nippon Steel & Sumitomo Metal Corporation Plate rolling mill and plate rolling method
CN101491814B (en) * 2009-01-14 2011-07-27 太原科技大学 Synthetic setting technology of roll-bending force of five-frame four-roll cold continuous rolling device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864955A (en) * 1973-12-04 1975-02-11 Blaw Knox Foundry Mill Machine Rolling mill stand
DE3601239A1 (en) * 1986-01-17 1987-07-23 Schloemann Siemag Ag Bending device for the axially displaceable working rolls of a four-high stand

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011122070A1 *

Also Published As

Publication number Publication date
EP2554284B1 (en) 2014-11-19
KR101300237B1 (en) 2013-08-26
TW201139001A (en) 2011-11-16
EP2554284A1 (en) 2013-02-06
KR20120127511A (en) 2012-11-21
CN102834192B (en) 2013-11-27
TWI401123B (en) 2013-07-11
BR112012024207A2 (en) 2016-07-05
CN102834192A (en) 2012-12-19
WO2011122070A1 (en) 2011-10-06

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