JPS57206511A - Controlling method of press-down deviation in group of hot rolling mills - Google Patents

Controlling method of press-down deviation in group of hot rolling mills

Info

Publication number
JPS57206511A
JPS57206511A JP56090054A JP9005481A JPS57206511A JP S57206511 A JPS57206511 A JP S57206511A JP 56090054 A JP56090054 A JP 56090054A JP 9005481 A JP9005481 A JP 9005481A JP S57206511 A JPS57206511 A JP S57206511A
Authority
JP
Japan
Prior art keywords
deviation
stand
press
gauge
deltah
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
JP56090054A
Other languages
Japanese (ja)
Other versions
JPS6254562B2 (en
Inventor
Yoichi Fujiwara
Yuji Miyake
Kazuo Kato
Noriaki Inoue
Yoshizo Ishikawa
Toshihiro Konishi
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 JP56090054A priority Critical patent/JPS57206511A/en
Publication of JPS57206511A publication Critical patent/JPS57206511A/en
Publication of JPS6254562B2 publication Critical patent/JPS6254562B2/ja
Granted 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill

Landscapes

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

Abstract

PURPOSE:To reduce a gauge deviation and a camber of rolling material, by computing the changes of the sheet thickness and the gauge deviation in the longitudinal direction of the material, and performing a feed-forward controlling of the press-down and the press-down deviation of a stand which precedes a finish mill. CONSTITUTION:At the 5th stand i.e. the final stand of roughing mill, actual values of the gauge deviation (DELTAhd) and the amount of camber (x) at the exit side are inputted to a commanding circuit 26 of a comprehensive press-down deviation controlling device to compute the gauge deviation and the degree of gauge deviation. Thus the difference of roll gap DELTAH is obtained from the gauge deviation of a next or next but one rolling material at the inlet side to correct the press-down deviation at the 2nd stand by DELTAH. Further, the circuit 26 performs the press-down deviation control by computing the DELTAH and prevents a generation of meandering between the front end part and the rear end part of finishing stands and, at the central part the circuit 26 performs the press-down deviation control of the 1st stand of finish mill by DELTAH, during rolling, by putting the change of the gauge deviation (DELTAhd), in the rolling material at the exit side of the 5th stand of roughing mill, as the gauge deviation at the inlet side of the 1st stand of the finish mill, in order to eliminate the gauge deviation and the camber at the exit side of the 1st stand of the finish mill.
JP56090054A 1981-06-11 1981-06-11 Controlling method of press-down deviation in group of hot rolling mills Granted JPS57206511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090054A JPS57206511A (en) 1981-06-11 1981-06-11 Controlling method of press-down deviation in group of hot rolling mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090054A JPS57206511A (en) 1981-06-11 1981-06-11 Controlling method of press-down deviation in group of hot rolling mills

Publications (2)

Publication Number Publication Date
JPS57206511A true JPS57206511A (en) 1982-12-17
JPS6254562B2 JPS6254562B2 (en) 1987-11-16

Family

ID=13987872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090054A Granted JPS57206511A (en) 1981-06-11 1981-06-11 Controlling method of press-down deviation in group of hot rolling mills

Country Status (1)

Country Link
JP (1) JPS57206511A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002178018A (en) * 2000-12-15 2002-06-25 Kawasaki Steel Corp Hot-rolling method and method for setting leveling of hot cross roll mill
JP2010234408A (en) * 2009-03-31 2010-10-21 Jfe Steel Corp Method for manufacturing hot-rolled steel strip
CN106914496A (en) * 2015-12-24 2017-07-04 Posco公司 Strip Deviation Control Device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002178018A (en) * 2000-12-15 2002-06-25 Kawasaki Steel Corp Hot-rolling method and method for setting leveling of hot cross roll mill
JP4590728B2 (en) * 2000-12-15 2010-12-01 Ｊｆｅスチール株式会社 Hot rolling method and leveling setting method for hot cross roll mill
JP2010234408A (en) * 2009-03-31 2010-10-21 Jfe Steel Corp Method for manufacturing hot-rolled steel strip
CN106914496A (en) * 2015-12-24 2017-07-04 Posco公司 Strip Deviation Control Device

Also Published As

Publication number Publication date
JPS6254562B2 (en) 1987-11-16

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