JPS5641009A - Controlling method for tension - Google Patents

Controlling method for tension

Info

Publication number
JPS5641009A
JPS5641009A JP9991280A JP9991280A JPS5641009A JP S5641009 A JPS5641009 A JP S5641009A JP 9991280 A JP9991280 A JP 9991280A JP 9991280 A JP9991280 A JP 9991280A JP S5641009 A JPS5641009 A JP S5641009A
Authority
JP
Japan
Prior art keywords
control
parameter
tension
stand
etai
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
JP9991280A
Other languages
Japanese (ja)
Inventor
Shinya Tanifuji
Yasuo Morooka
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
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9991280A priority Critical patent/JPS5641009A/en
Publication of JPS5641009A publication Critical patent/JPS5641009A/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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control

Landscapes

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

Abstract

PURPOSE:To apply the good tension control to any kind of rolling materials, by switching the looper control and the loopless control according to the condition of the rolled material between two stands. CONSTITUTION:The bending parameter arithmetic unit 30 operates the parameter etai showing the bending difficulty, and the tension control selector 31 receives the parameter etai as the input and judges whether this parameter is larger than the previously set value etao. When the parameter etaI between the I-th stand and the (I+1)th stand exceeds the value etao, HTFC is employed as the tension controller for the upstream side from the (I+1)th stand, and the looper is employed for the downstream side from the (I+1)th stand; thus the tension controller is selected. According to this command, the looper and HTFC control the interstand tension. As a result, the most suitable tensinon control can be performed for the rolled material ranging from the special material like as the thick material, the low temperature use material, the high hard material, etc. to the ordinary hot rolled material.
JP9991280A 1980-07-23 1980-07-23 Controlling method for tension Pending JPS5641009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9991280A JPS5641009A (en) 1980-07-23 1980-07-23 Controlling method for tension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9991280A JPS5641009A (en) 1980-07-23 1980-07-23 Controlling method for tension

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP52067930A Division JPS5918128B2 (en) 1977-06-10 1977-06-10 Tension control method

Publications (1)

Publication Number Publication Date
JPS5641009A true JPS5641009A (en) 1981-04-17

Family

ID=14259979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9991280A Pending JPS5641009A (en) 1980-07-23 1980-07-23 Controlling method for tension

Country Status (1)

Country Link
JP (1) JPS5641009A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159187U (en) * 1983-04-12 1984-10-25 ティーディーケイ株式会社 switching power supply
CN104249082A (en) * 2014-09-23 2014-12-31 山西太钢不锈钢股份有限公司 Method for controlling loops of hot continuous rolling mills for special steel with thick specifications during technological idle setting
JP2019181483A (en) * 2018-04-03 2019-10-24 Ｊｆｅスチール株式会社 Rolling control method and rolling control device for hot finish rolling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159187U (en) * 1983-04-12 1984-10-25 ティーディーケイ株式会社 switching power supply
CN104249082A (en) * 2014-09-23 2014-12-31 山西太钢不锈钢股份有限公司 Method for controlling loops of hot continuous rolling mills for special steel with thick specifications during technological idle setting
JP2019181483A (en) * 2018-04-03 2019-10-24 Ｊｆｅスチール株式会社 Rolling control method and rolling control device for hot finish rolling

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