JPS5594716A - Controlling method for sheet shape in sheet rolling - Google Patents

Controlling method for sheet shape in sheet rolling

Info

Publication number
JPS5594716A
JPS5594716A JP249279A JP249279A JPS5594716A JP S5594716 A JPS5594716 A JP S5594716A JP 249279 A JP249279 A JP 249279A JP 249279 A JP249279 A JP 249279A JP S5594716 A JPS5594716 A JP S5594716A
Authority
JP
Japan
Prior art keywords
rolling speed
deltav
sheet
shape
rolling
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
JP249279A
Other languages
Japanese (ja)
Other versions
JPS6316205B2 (en
Inventor
Katsuyuki Matsumiya
Hiroo Oshima
Kokichi Sakamaki
Satoru Maeno
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.)
Kobe Steel Ltd
Shinko Electric Co Ltd
Original Assignee
Kobe Steel Ltd
Shinko Electric Co 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 Kobe Steel Ltd, Shinko Electric Co Ltd filed Critical Kobe Steel Ltd
Priority to JP249279A priority Critical patent/JPS5594716A/en
Publication of JPS5594716A publication Critical patent/JPS5594716A/en
Publication of JPS6316205B2 publication Critical patent/JPS6316205B2/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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls

Landscapes

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

Abstract

PURPOSE:To keep the overall shape at good condition, by operating the difference between the actual rolling speed and the desired set value of rolling speed, and by controlling the distribution of flow rates of the roll-coolant injection nozzles. CONSTITUTION:The output of the regulator RE1 of the automatic sheet gauge control system is corresponding to the difference DELTAV between the desired rolling speed VS and the actual rolling speed VM; depending on this difference signal DELTAV, the flow rate of the flow control valve VL is controlled. That is, if the average sheet gauge in the rolling direction decreases, DELTAV becomes negative, and the rolling speed is decreased by DELTAV, so that the flow rate of coolant is increased by the amount corresponding to the decrement of the rolling speed in order to decrease the crown of the middle part of the roll, and also to restore the decrement of the rolling speed. This shape change is detected by the shape detector SH, which at once decreases the push-up force; and with this decrease, the sheet shape is restored to the good condition, and the averate sheet gauge is restored to the desired value.
JP249279A 1979-01-11 1979-01-11 Controlling method for sheet shape in sheet rolling Granted JPS5594716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP249279A JPS5594716A (en) 1979-01-11 1979-01-11 Controlling method for sheet shape in sheet rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP249279A JPS5594716A (en) 1979-01-11 1979-01-11 Controlling method for sheet shape in sheet rolling

Publications (2)

Publication Number Publication Date
JPS5594716A true JPS5594716A (en) 1980-07-18
JPS6316205B2 JPS6316205B2 (en) 1988-04-07

Family

ID=11530852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP249279A Granted JPS5594716A (en) 1979-01-11 1979-01-11 Controlling method for sheet shape in sheet rolling

Country Status (1)

Country Link
JP (1) JPS5594716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169612A (en) * 1983-03-16 1984-09-25 Kobe Steel Ltd Shape controlling method in rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169612A (en) * 1983-03-16 1984-09-25 Kobe Steel Ltd Shape controlling method in rolling mill

Also Published As

Publication number Publication date
JPS6316205B2 (en) 1988-04-07

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