JPS54117358A - Controlling method for tension of looper - Google Patents

Controlling method for tension of looper

Info

Publication number
JPS54117358A
JPS54117358A JP2473878A JP2473878A JPS54117358A JP S54117358 A JPS54117358 A JP S54117358A JP 2473878 A JP2473878 A JP 2473878A JP 2473878 A JP2473878 A JP 2473878A JP S54117358 A JPS54117358 A JP S54117358A
Authority
JP
Japan
Prior art keywords
tension
looper
value
previously set
oil pressure
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
JP2473878A
Other languages
Japanese (ja)
Other versions
JPS611214B2 (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 JP2473878A priority Critical patent/JPS54117358A/en
Publication of JPS54117358A publication Critical patent/JPS54117358A/en
Publication of JPS611214B2 publication Critical patent/JPS611214B2/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
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control

Abstract

PURPOSE:To carry out the stable control of the tension, by moving upward the looper roll at a previously set speed, and by controlling the driving torque of the looper after the value of interstand tension comes into the previously set allowable range. CONSTITUTION:The oil pressure is supplied from the servo-valve 8 connected to the hydraulic source 10, to the hydraulic swing motor 9 for driving the looper 11. The oil pressure is connected to the oil pressure detectors 1, 2, whose output is connected to the servo-valve 8, through the differential pressure detector 3, the device 4 receiving the driving torque of the hydraulic swing motor 9, the measuring device 5 for the value of interstand tension between the stands 13, 14, the device 6 for operating the deviation of the measured tension value from the previously set aim value of tension, and the acceleration circuit 7 for the leading of the looper. Correspondingly to the magnitude of the measured tension value, and depending on the deviation of the measured tension value from the aim tension value, the looper is moved upward at the maximum speed to generate the maximum flow rate, and then, the tension control is stabilized.
JP2473878A 1978-03-04 1978-03-04 Controlling method for tension of looper Granted JPS54117358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2473878A JPS54117358A (en) 1978-03-04 1978-03-04 Controlling method for tension of looper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2473878A JPS54117358A (en) 1978-03-04 1978-03-04 Controlling method for tension of looper

Publications (2)

Publication Number Publication Date
JPS54117358A true JPS54117358A (en) 1979-09-12
JPS611214B2 JPS611214B2 (en) 1986-01-14

Family

ID=12146483

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2473878A Granted JPS54117358A (en) 1978-03-04 1978-03-04 Controlling method for tension of looper

Country Status (1)

Country Link
JP (1) JPS54117358A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104550260A (en) * 2014-09-03 2015-04-29 山西太钢不锈钢股份有限公司 Additional given value control method of hot-continuous-rolling thin-specification running sleeve and idle sleeve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5463888B2 (en) * 2009-12-09 2014-04-09 新日鐵住金株式会社 Manufacturing method and manufacturing apparatus for hot-rolled steel sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104550260A (en) * 2014-09-03 2015-04-29 山西太钢不锈钢股份有限公司 Additional given value control method of hot-continuous-rolling thin-specification running sleeve and idle sleeve
CN104550260B (en) * 2014-09-03 2016-06-29 山西太钢不锈钢股份有限公司 Hot continuous rolling thin specification kink void set is added to locking control method

Also Published As

Publication number Publication date
JPS611214B2 (en) 1986-01-14

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