JPS5623309A - Method for controlling tension between stands of continuous rolling mill - Google Patents

Method for controlling tension between stands of continuous rolling mill

Info

Publication number
JPS5623309A
JPS5623309A JP9840879A JP9840879A JPS5623309A JP S5623309 A JPS5623309 A JP S5623309A JP 9840879 A JP9840879 A JP 9840879A JP 9840879 A JP9840879 A JP 9840879A JP S5623309 A JPS5623309 A JP S5623309A
Authority
JP
Japan
Prior art keywords
deviation
looper
tension
controlling
control
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
JP9840879A
Other languages
Japanese (ja)
Other versions
JPS5944129B2 (en
Inventor
Yuuichi Tsuji
Katsumi Suehiro
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 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 Corp filed Critical Nippon Steel Corp
Priority to JP54098408A priority Critical patent/JPS5944129B2/en
Publication of JPS5623309A publication Critical patent/JPS5623309A/en
Publication of JPS5944129B2 publication Critical patent/JPS5944129B2/en
Expired 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
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control

Abstract

PURPOSE:To control the tension between stands of a continuous rolling mill with high response and stability by finding an optimized control solution which minimizes the evaluation function representing a high controlling effect. CONSTITUTION:When computer 11 enters detecting value from respective detectors 12-14 at a short interval, it decides interstand plate velocity deviation DELTAV, looper angle deviation DELTAtheta, loop angle deviation (dDELTAtheta/dt), and tension deviation DELTAT, minimizes the evaluation function and calculates optimized control variable vectors (looper driving torque standard deviation DELTATM and plate velocity difference standard deviation DELTAV). Then, conmputor 11 outputs a velocity standard signal to controlling device 7 and a torque standard signal to looper controlling device 10. Thus, controlling devices 7 and 8 can perform optimized control for the mill and looper causing optimized tension control to be carried out. As the result, the response of controlling system for outer disturbance is significantly improved and the precision of plate thickness and plate width can be increased.
JP54098408A 1979-08-01 1979-08-01 Tension control method between continuous rolling mill stands Expired JPS5944129B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54098408A JPS5944129B2 (en) 1979-08-01 1979-08-01 Tension control method between continuous rolling mill stands

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54098408A JPS5944129B2 (en) 1979-08-01 1979-08-01 Tension control method between continuous rolling mill stands

Publications (2)

Publication Number Publication Date
JPS5623309A true JPS5623309A (en) 1981-03-05
JPS5944129B2 JPS5944129B2 (en) 1984-10-26

Family

ID=14219001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54098408A Expired JPS5944129B2 (en) 1979-08-01 1979-08-01 Tension control method between continuous rolling mill stands

Country Status (1)

Country Link
JP (1) JPS5944129B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100635073B1 (en) * 1999-12-13 2006-10-16 주식회사 포스코 Strip Tension Control Devices and Method of Continuous Processing Line by using Looper
KR101018089B1 (en) * 2003-08-11 2011-02-25 주식회사 포스코 An apparatus for controlling the head of strip in melt zinc plating continuous line

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207910A (en) * 1989-02-07 1990-08-17 Toshiba Corp Looper controller for continuous rolling mill
JPH0984244A (en) * 1995-09-13 1997-03-28 Nec Eng Ltd Cable winding mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100635073B1 (en) * 1999-12-13 2006-10-16 주식회사 포스코 Strip Tension Control Devices and Method of Continuous Processing Line by using Looper
KR101018089B1 (en) * 2003-08-11 2011-02-25 주식회사 포스코 An apparatus for controlling the head of strip in melt zinc plating continuous line

Also Published As

Publication number Publication date
JPS5944129B2 (en) 1984-10-26

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