JPH0332412A - Method for keeping flatness under control in reverse rolling time - Google Patents

Method for keeping flatness under control in reverse rolling time

Info

Publication number
JPH0332412A
JPH0332412A JP1165787A JP16578789A JPH0332412A JP H0332412 A JPH0332412 A JP H0332412A JP 1165787 A JP1165787 A JP 1165787A JP 16578789 A JP16578789 A JP 16578789A JP H0332412 A JPH0332412 A JP H0332412A
Authority
JP
Japan
Prior art keywords
load
plate crown
flatness
error
predictive
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
JP1165787A
Other languages
Japanese (ja)
Other versions
JP2628916B2 (en
Inventor
Kazuo Omori
Tsuneo Seto
Makoto Yoshii
Tsutomu Yoshizato
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP1165787A priority Critical patent/JP2628916B2/en
Publication of JPH0332412A publication Critical patent/JPH0332412A/en
Application granted granted Critical
Publication of JP2628916B2 publication Critical patent/JP2628916B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B37/28—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

Abstract

PURPOSE: To keep a high precision flatness under control by estimating a rolling load, a predictive error of roll profile and a predictive model error of plate crown and determining a proper work roll bending force on and after the following pass.
CONSTITUTION: An actual result of load from a load cell 4, flatness information from a flatness indicator 6, plate crown information from a plate crown measuring device 8, an actual result of bending force, rolling condition data from a process computer 5 are inputted respectively to a CPU7. The predictive error of load, the predictive error of work roll crown and the predictive model error of plate crown are operated from each of these data to determine the bending forces on and after the following pass. The determined signals are outputted to a controller 3 and adequate bending forces are give to an upper and a lower work roll 1, 1' to enable rolling in a high precision flatness.
COPYRIGHT: (C)1991,JPO&Japio
JP1165787A 1989-06-28 1989-06-28 Flatness control method during reverse rolling Expired - Lifetime JP2628916B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1165787A JP2628916B2 (en) 1989-06-28 1989-06-28 Flatness control method during reverse rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1165787A JP2628916B2 (en) 1989-06-28 1989-06-28 Flatness control method during reverse rolling

Publications (2)

Publication Number Publication Date
JPH0332412A true JPH0332412A (en) 1991-02-13
JP2628916B2 JP2628916B2 (en) 1997-07-09

Family

ID=15818998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1165787A Expired - Lifetime JP2628916B2 (en) 1989-06-28 1989-06-28 Flatness control method during reverse rolling

Country Status (1)

Country Link
JP (1) JP2628916B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007007711A (en) * 2005-07-01 2007-01-18 Ishikawajima Harima Heavy Ind Co Ltd Reversing mill
DE102010014867A1 (en) 2009-04-17 2010-11-18 Sms Siemag Ag Method for providing at least one work roll for rolling a rolling stock
JP2013075301A (en) * 2011-09-29 2013-04-25 Hitachi Ltd Device, method and program for controlling rolling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092256A (en) * 1973-12-19 1975-07-23
JPS548464A (en) * 1977-06-22 1979-01-22 Seiko Instr & Electronics Ltd Insulation coating method to film carrier
JPS6325848A (en) * 1986-07-01 1988-02-03 バイエル・アクチエンゲゼルシヤフト Light signal recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092256A (en) * 1973-12-19 1975-07-23
JPS548464A (en) * 1977-06-22 1979-01-22 Seiko Instr & Electronics Ltd Insulation coating method to film carrier
JPS6325848A (en) * 1986-07-01 1988-02-03 バイエル・アクチエンゲゼルシヤフト Light signal recording medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007007711A (en) * 2005-07-01 2007-01-18 Ishikawajima Harima Heavy Ind Co Ltd Reversing mill
JP4683376B2 (en) * 2005-07-01 2011-05-18 株式会社Ｉｈｉ Reverse rolling mill
DE102010014867A1 (en) 2009-04-17 2010-11-18 Sms Siemag Ag Method for providing at least one work roll for rolling a rolling stock
JP2013075301A (en) * 2011-09-29 2013-04-25 Hitachi Ltd Device, method and program for controlling rolling

Also Published As

Publication number Publication date
JP2628916B2 (en) 1997-07-09

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