JPS5680311A - Controlling method for rolling mill - Google Patents

Controlling method for rolling mill

Info

Publication number
JPS5680311A
JPS5680311A JP15753979A JP15753979A JPS5680311A JP S5680311 A JPS5680311 A JP S5680311A JP 15753979 A JP15753979 A JP 15753979A JP 15753979 A JP15753979 A JP 15753979A JP S5680311 A JPS5680311 A JP S5680311A
Authority
JP
Japan
Prior art keywords
sheet thickness
thickness
correction signal
deviation
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
JP15753979A
Other languages
Japanese (ja)
Other versions
JPS636287B2 (en
Inventor
Takayuki Matsudaira
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP54157539A priority Critical patent/JPS636287B2/ja
Publication of JPS5680311A publication Critical patent/JPS5680311A/en
Publication of JPS636287B2 publication Critical patent/JPS636287B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To control the sheet thickness, by obtaining the deviation of sheet thickness detected on the run-out side of the downstream mill from the set point of sheet thickness, and by controlling the speed difference between upper and lower rolling rolls or the interstand tension correspondingly to above obtained thickness deviation.
CONSTITUTION: The thickness gauge 16 detects sheet thickness on the run-out side of upper and lower rolling rolls 4, 3. Then, the sheet thickness control circuit 17 produces a thickness correction signal correspondingly to the deviation of this detected sheet thickness from the value of sheet thickness set in the sheet thickness setting circuit 18. Here-upon, if the sheet thickness correction signal is below the limit value for the sheet thickness control output, the sheet thickness control out-put limiting circuit 19 produces a thickness correction signal as the speed difference correction signal by which the speed of the upper roll 4 is altered. Meanwhile, if the sheet thickness correction signal is above the limit value of the sheet thickness control output, the speed of the upper roll 4 is altered within the limit of this control output, and the residual excess is produced as the tension set correction output to correct the tension.
COPYRIGHT: (C)1981,JPO&Japio
JP54157539A 1979-12-05 1979-12-05 Expired JPS636287B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54157539A JPS636287B2 (en) 1979-12-05 1979-12-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54157539A JPS636287B2 (en) 1979-12-05 1979-12-05

Publications (2)

Publication Number Publication Date
JPS5680311A true JPS5680311A (en) 1981-07-01
JPS636287B2 JPS636287B2 (en) 1988-02-09

Family

ID=15651883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54157539A Expired JPS636287B2 (en) 1979-12-05 1979-12-05

Country Status (1)

Country Link
JP (1) JPS636287B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609511A (en) * 1983-06-29 1985-01-18 Hitachi Ltd Method for controlling dimension in rolling mill
JPS60145215A (en) * 1984-01-05 1985-07-31 Hitachi Ltd Sheet thickness controlling method in different speed rolling
JP2010260075A (en) * 2009-05-01 2010-11-18 Nippon Steel Corp Plate rolling mill and method for controlling the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609511A (en) * 1983-06-29 1985-01-18 Hitachi Ltd Method for controlling dimension in rolling mill
JPS60145215A (en) * 1984-01-05 1985-07-31 Hitachi Ltd Sheet thickness controlling method in different speed rolling
JPH0364205B2 (en) * 1984-01-05 1991-10-04 Hitachi Ltd
JP2010260075A (en) * 2009-05-01 2010-11-18 Nippon Steel Corp Plate rolling mill and method for controlling the same

Also Published As

Publication number Publication date
JPS636287B2 (en) 1988-02-09

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