JPS5542144A - Shape control method of strip - Google Patents

Shape control method of strip

Info

Publication number
JPS5542144A
JPS5542144A JP11495678A JP11495678A JPS5542144A JP S5542144 A JPS5542144 A JP S5542144A JP 11495678 A JP11495678 A JP 11495678A JP 11495678 A JP11495678 A JP 11495678A JP S5542144 A JPS5542144 A JP S5542144A
Authority
JP
Japan
Prior art keywords
value
shape
target value
symmetric
asymmetric
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
JP11495678A
Other languages
Japanese (ja)
Other versions
JPS6134882B2 (en
Inventor
Yoichi Naganuma
Tadaatsu Inoue
Kanji Baba
Harutoshi Okai
Itsuo Shimizu
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.)
Hitachi Ltd
Nippon Steel Corp
Original Assignee
Hitachi Ltd
Nippon 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 Hitachi Ltd, Nippon Steel Corp filed Critical Hitachi Ltd
Priority to JP11495678A priority Critical patent/JPS5542144A/en
Publication of JPS5542144A publication Critical patent/JPS5542144A/en
Publication of JPS6134882B2 publication Critical patent/JPS6134882B2/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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls

Landscapes

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

Abstract

PURPOSE:To obtain sufficient control performance against complicated shape defects in a simple control system, by finding the deviation between target value and detected value of symmetric and asymmetric parameters, and adjusting the operation end by comparing the evaluated values obtained from said two values, target value and estimated value. CONSTITUTION:A shape pattern signal of a plate 1 in the breadthwise direction sent from a shape detecting device 31 at the exit side of a rolling mill possessing intermediate rolls movable in the axial direction is divided into two parameters, symmetric and asymmetric, by a recognition device 32. The deviation between the detected value and the target value is obtained in a device 34, and a device 5 determines the evaluation value by evaluation function from said both values of symmetric components. Estimating the shape change in the case of varying the set point, an estimated value is obtained, and the evaluation is determined from this estimated value and the target value, and is compared with said estimated value to set and correct the intermediate roll position and roll bending force. Processing the asymmetric components similarly, the screw-down position difference between the operation side and driving side, rool bending force difference, or intermediate roll position difference can be set and corrected. Repeating such operations, the shape control is achieved.
JP11495678A 1978-09-19 1978-09-19 Shape control method of strip Granted JPS5542144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11495678A JPS5542144A (en) 1978-09-19 1978-09-19 Shape control method of strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11495678A JPS5542144A (en) 1978-09-19 1978-09-19 Shape control method of strip

Publications (2)

Publication Number Publication Date
JPS5542144A true JPS5542144A (en) 1980-03-25
JPS6134882B2 JPS6134882B2 (en) 1986-08-09

Family

ID=14650796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11495678A Granted JPS5542144A (en) 1978-09-19 1978-09-19 Shape control method of strip

Country Status (1)

Country Link
JP (1) JPS5542144A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100437638B1 (en) * 1999-12-07 2004-06-26 주식회사 포스코 Symmetry flatness control method for stainless cold rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100437638B1 (en) * 1999-12-07 2004-06-26 주식회사 포스코 Symmetry flatness control method for stainless cold rolling mill

Also Published As

Publication number Publication date
JPS6134882B2 (en) 1986-08-09

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