JPS55126310A - Controlling method for sheet crown in rolling mill - Google Patents

Controlling method for sheet crown in rolling mill

Info

Publication number
JPS55126310A
JPS55126310A JP3310879A JP3310879A JPS55126310A JP S55126310 A JPS55126310 A JP S55126310A JP 3310879 A JP3310879 A JP 3310879A JP 3310879 A JP3310879 A JP 3310879A JP S55126310 A JPS55126310 A JP S55126310A
Authority
JP
Japan
Prior art keywords
sheet crown
sheet
value
crown
final
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
JP3310879A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kizaki
Tsutomu Hara
Hisashi Honjo
Takashi Emori
Masatomo Terakawa
Yoshiaki Takashima
Akihiro Kamatani
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.)
IHI Corp
Nippon Steel Corp
Original Assignee
IHI 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 IHI Corp, Nippon Steel Corp filed Critical IHI Corp
Priority to JP3310879A priority Critical patent/JPS55126310A/en
Publication of JPS55126310A publication Critical patent/JPS55126310A/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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/02—Profile, e.g. of plate, hot strip, sections

Landscapes

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

Abstract

PURPOSE:To control the sheet crown without worsening the sheet shape, by installing the roll bending device in the stand except the final stand so as to be the sheet crown controlling stand, and by inputting the detected sheet crown value on the delivery side of the final stand to above stated roll bending device as the feedback. CONSTITUTION:When the sheet crown detector 14 on the delivery side of final stand S6 detects the sheet crown of the product, the output signal is inputted to the signal processor 10 which converts the input signal into the bending pressure to control the sheet crown. In the processor 10, the set value of the bending pressure is determined so as to obtain the aim final sheet crown in consideration of the shape blind sector; therefore, the actually measured value is compared with the aim crown value depending on the signal produced from the detector 14. If these two values are different, the set value of the bending pressure is corrected by using the detected sheet crown value, and the final sheet crown value is controlled to the aim sheet crown value. According to this method, the passability of the sheet is stabilized, and the improvement of the yield and quality can be contrived.
JP3310879A 1979-03-20 1979-03-20 Controlling method for sheet crown in rolling mill Pending JPS55126310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3310879A JPS55126310A (en) 1979-03-20 1979-03-20 Controlling method for sheet crown in rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3310879A JPS55126310A (en) 1979-03-20 1979-03-20 Controlling method for sheet crown in rolling mill

Publications (1)

Publication Number Publication Date
JPS55126310A true JPS55126310A (en) 1980-09-30

Family

ID=12377459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3310879A Pending JPS55126310A (en) 1979-03-20 1979-03-20 Controlling method for sheet crown in rolling mill

Country Status (1)

Country Link
JP (1) JPS55126310A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124510A (en) * 1981-01-23 1982-08-03 Mitsubishi Electric Corp Method for controlling shape and crown of strip
JPS5947006A (en) * 1982-09-10 1984-03-16 Hitachi Ltd Control method of crown and shape
US4494396A (en) * 1981-04-02 1985-01-22 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Multistage rolling mill with flatness control function
US5241847A (en) * 1990-04-03 1993-09-07 Kabushiki Kaisha Toshiba Rolling control method and apparatus
JP2009066637A (en) * 2007-09-14 2009-04-02 Hitachi Ltd Apparatus and method for controlling crown shape of hot tandem rolling mill

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124510A (en) * 1981-01-23 1982-08-03 Mitsubishi Electric Corp Method for controlling shape and crown of strip
US4494396A (en) * 1981-04-02 1985-01-22 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Multistage rolling mill with flatness control function
JPS5947006A (en) * 1982-09-10 1984-03-16 Hitachi Ltd Control method of crown and shape
JPH0216165B2 (en) * 1982-09-10 1990-04-16 Hitachi Ltd
US5241847A (en) * 1990-04-03 1993-09-07 Kabushiki Kaisha Toshiba Rolling control method and apparatus
JP2009066637A (en) * 2007-09-14 2009-04-02 Hitachi Ltd Apparatus and method for controlling crown shape of hot tandem rolling mill
JP4504406B2 (en) * 2007-09-14 2010-07-14 株式会社日立製作所 Apparatus and method for controlling crown shape of hot tandem rolling mill

Similar Documents

Publication Publication Date Title
JPS55126310A (en) Controlling method for sheet crown in rolling mill
GB1270246A (en) Improvements in or relating to rolling
JPS5413447A (en) Controlling method for sheet crown
JPS55109510A (en) Shape control unit in rolling
JPS564307A (en) Looper controller for continuous rolling mill
JPS55122607A (en) Rolling mill
JPS55122608A (en) Rolling mill
JPS5680311A (en) Controlling method for rolling mill
JPS5469556A (en) Controlling method for sheet breadth in hot rolling work
JPS57156827A (en) Automatic differential pressure setter
JPS6445613A (en) Method for controlling thickness of rubber sheet
JPS55112116A (en) Controlling method for sheet camber
JPS546845A (en) Controlling method for flatness of rolled material
JPS5791813A (en) Controlling method of sheet thickness for rolling mill
JPS57181707A (en) Rolling equipment
JPS53103964A (en) Coiling temperature controlling method of hot rolling mill
JPS5711711A (en) Method and apparatus for controlling sheet crown
JPS55122610A (en) Flatness-correcting method in hot rolling
JPS5674312A (en) Sheet gauge controller for rolling mill
JPS5744413A (en) Controlling method for rolling work by reeling mill
SU482222A1 (en) The system of regulation of the relative reduction in the training mill
JPS5577917A (en) Controlling method for rolling mill
JPS5586614A (en) Thickness controller for rolling mill
JPS57171510A (en) Shape controlling device
JPS5686616A (en) Method and apparatus for automatic thickness control in rolling mill