JPS57124515A - Controlling method for sheet thickness and surface evenness - Google Patents

Controlling method for sheet thickness and surface evenness

Info

Publication number
JPS57124515A
JPS57124515A JP56011065A JP1106581A JPS57124515A JP S57124515 A JPS57124515 A JP S57124515A JP 56011065 A JP56011065 A JP 56011065A JP 1106581 A JP1106581 A JP 1106581A JP S57124515 A JPS57124515 A JP S57124515A
Authority
JP
Japan
Prior art keywords
roll
gap
bending force
sheet thickness
rolling
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
JP56011065A
Other languages
Japanese (ja)
Other versions
JPS6245002B2 (en
Inventor
Ryoichi Takahashi
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
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP56011065A priority Critical patent/JPS57124515A/en
Publication of JPS57124515A publication Critical patent/JPS57124515A/en
Publication of JPS6245002B2 publication Critical patent/JPS6245002B2/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
    • B21B37/58—Roll-force control; Roll-gap control
    • 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

Landscapes

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

Abstract

PURPOSE:To obtain a material to be rolled having uniform sheet thickness and high surface evenness in the longitudinal direction, by synchronizing the sheet thickness control in the longitudinal direction of the roll gap of the material and the sheet thcikness control in the lateral direction by a roll bender. CONSTITUTION:An output of a load cell 4 detecting a rolling load P, and a signal of a bending force sensor 8 detecting a bending force PB, are outputted together to a subtracter 10 through a subtracter 9 to be compared with a reference rolling load, and to compute a rolling-load changing quantity, DELTAP, and the result is outputted to controllng parts 11 and 12. On the other hand, a roll- gap signals S is inputted in a subtractor 13 and compared with a reference gap to be computed a roll-gap changing quantity DELTAS and the result is outputted to the controlling parts 11, and 12. The controlling part 11 computes a changing quantity of roll-bending force DELTAPB from an equation, based on these inputted values and a previously inputted a reference sheet crown CRo, a refernce exit sheet thickness ho, and several coefficients, to command a roll bender 7 to change the bending force. The controlling part 12 computes the roll-gap changing quantity DELTAS' to outputs a command signal to a rolling-reduction setter 5.
JP56011065A 1981-01-27 1981-01-27 Controlling method for sheet thickness and surface evenness Granted JPS57124515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56011065A JPS57124515A (en) 1981-01-27 1981-01-27 Controlling method for sheet thickness and surface evenness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56011065A JPS57124515A (en) 1981-01-27 1981-01-27 Controlling method for sheet thickness and surface evenness

Publications (2)

Publication Number Publication Date
JPS57124515A true JPS57124515A (en) 1982-08-03
JPS6245002B2 JPS6245002B2 (en) 1987-09-24

Family

ID=11767584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56011065A Granted JPS57124515A (en) 1981-01-27 1981-01-27 Controlling method for sheet thickness and surface evenness

Country Status (1)

Country Link
JP (1) JPS57124515A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153512A (en) * 1983-02-22 1984-09-01 Kawasaki Steel Corp Sheet thickness controlling method
KR100638834B1 (en) 2006-03-03 2006-10-27 태창기계공업(주) Active crown controllable leveller
WO2007134661A1 (en) * 2006-05-23 2007-11-29 Sms Demag Ag Roll stand and method for rolling a rolled strip

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101505U (en) * 1985-12-16 1987-06-27
JPH02246924A (en) * 1989-03-22 1990-10-02 Morito Kk Arm band for measuring blood pressure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153512A (en) * 1983-02-22 1984-09-01 Kawasaki Steel Corp Sheet thickness controlling method
KR100638834B1 (en) 2006-03-03 2006-10-27 태창기계공업(주) Active crown controllable leveller
WO2007134661A1 (en) * 2006-05-23 2007-11-29 Sms Demag Ag Roll stand and method for rolling a rolled strip
JP2009537330A (en) * 2006-05-23 2009-10-29 エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト Rolling mill and method for rolling a rolling strip
US8302445B2 (en) 2006-05-23 2012-11-06 Sms Siemag Aktiengesellschaft Roll stand and method for rolling a rolled strip

Also Published As

Publication number Publication date
JPS6245002B2 (en) 1987-09-24

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