JPS56117811A - Controlling method for rolling work changeable thickness of traveling sheet - Google Patents

Controlling method for rolling work changeable thickness of traveling sheet

Info

Publication number
JPS56117811A
JPS56117811A JP1939080A JP1939080A JPS56117811A JP S56117811 A JPS56117811 A JP S56117811A JP 1939080 A JP1939080 A JP 1939080A JP 1939080 A JP1939080 A JP 1939080A JP S56117811 A JPS56117811 A JP S56117811A
Authority
JP
Japan
Prior art keywords
thickness
stand
screw position
response
changed
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
JP1939080A
Other languages
Japanese (ja)
Other versions
JPS6339321B2 (en
Inventor
Okinori Nakashima
Yoshiharu Hamazaki
Yoshikazu Kodera
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 JP1939080A priority Critical patent/JPS56117811A/en
Publication of JPS56117811A publication Critical patent/JPS56117811A/en
Publication of JPS6339321B2 publication Critical patent/JPS6339321B2/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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Landscapes

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

Abstract

PURPOSE:To change the pass schedule without disturbing the balance of mass flow, by matching the response to the screw position to the response to the rolling speed in each stand when the pass schedule is changed. CONSTITUTION:The thickness is changed since the moment that the thickness changing point of a single blank material being rolled by a rolling mill equipped with plural stands (b) arrives at a specified stand. Hereupon, if the response speed of the screw position controller of the stand is different from the response speed of the screw position controller of other stands, the roll gap correction signal for each screw down device is generated as a ramp signal so as to enable each screw position controller to trail the signal and to make each stand finish the thickness change at the same time. By the present method, the draft percentage is changed linearly and moderately from the value before the thickness change to the value after the thickness change.
JP1939080A 1980-02-19 1980-02-19 Controlling method for rolling work changeable thickness of traveling sheet Granted JPS56117811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1939080A JPS56117811A (en) 1980-02-19 1980-02-19 Controlling method for rolling work changeable thickness of traveling sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1939080A JPS56117811A (en) 1980-02-19 1980-02-19 Controlling method for rolling work changeable thickness of traveling sheet

Publications (2)

Publication Number Publication Date
JPS56117811A true JPS56117811A (en) 1981-09-16
JPS6339321B2 JPS6339321B2 (en) 1988-08-04

Family

ID=11997949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1939080A Granted JPS56117811A (en) 1980-02-19 1980-02-19 Controlling method for rolling work changeable thickness of traveling sheet

Country Status (1)

Country Link
JP (1) JPS56117811A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011206780A (en) * 2010-03-29 2011-10-20 Sumitomo Metal Ind Ltd Tandem finishing mill, method for controlling operation of the same, and apparatus and method for manufacturing hot-rolled steel sheet
JP2012506777A (en) * 2008-10-30 2012-03-22 シーメンス アクチエンゲゼルシヤフト Method, control and / or adjustment device, storage medium, program code and rolling equipment for adjusting the drive load of a number of drive devices of a rolling line for rolling the material to be rolled

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131937A (en) * 1973-04-25 1974-12-18
JPS53149157A (en) * 1977-06-01 1978-12-26 Hitachi Ltd Screw down method for hot finishing rolling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131937A (en) * 1973-04-25 1974-12-18
JPS53149157A (en) * 1977-06-01 1978-12-26 Hitachi Ltd Screw down method for hot finishing rolling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012506777A (en) * 2008-10-30 2012-03-22 シーメンス アクチエンゲゼルシヤフト Method, control and / or adjustment device, storage medium, program code and rolling equipment for adjusting the drive load of a number of drive devices of a rolling line for rolling the material to be rolled
US9138789B2 (en) 2008-10-30 2015-09-22 Siemens Aktiengesellschaft Method for adjusting a drive load for a plurality of drives of a mill train for rolling rolling stock, control and/or regulation device, storage medium, program code and rolling mill
EP2340133B2 (en) † 2008-10-30 2023-07-19 Primetals Technologies Germany GmbH Method for setting a drive load for multiple drives on a mill train to mill milled items, control and/or regulating device, storage medium, program code and mill train
JP2011206780A (en) * 2010-03-29 2011-10-20 Sumitomo Metal Ind Ltd Tandem finishing mill, method for controlling operation of the same, and apparatus and method for manufacturing hot-rolled steel sheet

Also Published As

Publication number Publication date
JPS6339321B2 (en) 1988-08-04

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