JPS5626619A - Detecting method for tension in continuous rolling mill - Google Patents

Detecting method for tension in continuous rolling mill

Info

Publication number
JPS5626619A
JPS5626619A JP10299979A JP10299979A JPS5626619A JP S5626619 A JPS5626619 A JP S5626619A JP 10299979 A JP10299979 A JP 10299979A JP 10299979 A JP10299979 A JP 10299979A JP S5626619 A JPS5626619 A JP S5626619A
Authority
JP
Japan
Prior art keywords
tension
back tension
stand
error
formula
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.)
Pending
Application number
JP10299979A
Other languages
Japanese (ja)
Inventor
Yoshiharu Hamazaki
Keiichi Fuse
Okinori Nakashima
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.)
Mitsubishi Electric Corp
Nippon Steel Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp, Nippon Steel Corp filed Critical Mitsubishi Electric Corp
Priority to JP10299979A priority Critical patent/JPS5626619A/en
Publication of JPS5626619A publication Critical patent/JPS5626619A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

Landscapes

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

Abstract

PURPOSE:To improve the detecting accuracy of the tension, by operating the reference back tension after the lock-on and before feeding the rolled material to the next stand, for the purpose of automatically absorbing the error of the back tension, at operating the front tension of each stand from the rolling toruqe, the rolling load, and the back tension. CONSTITUTION:At a suitable point of time after the rolled material 1 is fed to the i-th stand 2 and before it is fed to the (i+1)-th stand 3, the reference torque arm is locked on. After that, until the rolled material 1 is fed to the (i+1)-th stand 3, the tension between these two stands is kept zero, and the front tension Ti at this point of time is calculated according to the formula I; if the result of this calculation makes zero, the back tension is being held correct, but if it makes a value epsiloni other than zero, the back tension becomes a value obtained by the formula II. In these formulas, ai-ci are respectively for the reference, the back, and the front tension torque arms, Pi is for the rolling load, and Gi is for the rolling torque. epsiloninot equal to 0 depends on the error included by the back tension Ti-1', and this error DELTATi-1 is obtained from the formula III, and the true back tension Ti-1 is obtained from the formula IV. That is, the front tension arithmetic unit operates the front tension epsiloni from respective input, and inputs the value epsiloni to the back tension arithmetic unit 5; then, the correct back tension is obtained by the back tension correcting unit 6 from the error DELTATi-1.
JP10299979A 1979-08-11 1979-08-11 Detecting method for tension in continuous rolling mill Pending JPS5626619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10299979A JPS5626619A (en) 1979-08-11 1979-08-11 Detecting method for tension in continuous rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10299979A JPS5626619A (en) 1979-08-11 1979-08-11 Detecting method for tension in continuous rolling mill

Publications (1)

Publication Number Publication Date
JPS5626619A true JPS5626619A (en) 1981-03-14

Family

ID=14342373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10299979A Pending JPS5626619A (en) 1979-08-11 1979-08-11 Detecting method for tension in continuous rolling mill

Country Status (1)

Country Link
JP (1) JPS5626619A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5394248A (en) * 1977-01-28 1978-08-18 Mitsubishi Electric Corp Tension controlling method of continuous rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5394248A (en) * 1977-01-28 1978-08-18 Mitsubishi Electric Corp Tension controlling method of continuous rolling mill

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