JPS577309A - Rolling method - Google Patents

Rolling method

Info

Publication number
JPS577309A
JPS577309A JP7946380A JP7946380A JPS577309A JP S577309 A JPS577309 A JP S577309A JP 7946380 A JP7946380 A JP 7946380A JP 7946380 A JP7946380 A JP 7946380A JP S577309 A JPS577309 A JP S577309A
Authority
JP
Japan
Prior art keywords
output
bending force
subtractor
amplifier
rolling load
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
JP7946380A
Other languages
Japanese (ja)
Inventor
Takayuki Naoi
Keiichi Hamada
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP7946380A priority Critical patent/JPS577309A/en
Publication of JPS577309A publication Critical patent/JPS577309A/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

Abstract

PURPOSE:To keep a constant shape of a meterial to be rolled in the longitudinal direction, by controlling the bending force for a rolling roll correspondingly to variations of the rolling load in the longitudinal of the material to be rolled. CONSTITUTION:A subtractor 30 operates the rolling load Pi as the difference between the output of a rolling load detector 18 and the bending force Fi, and a subtractor 32 reduces the initially set value P0 of the rolling load from the said rolling load Pi. An amplifier 34 multiplies the bending force Fi by K2, and a subtractor 36 reduces the output of the amplifier 34 from the output of the subtractor 32. An amplifier 38 multiplies the initially set value F0 of the bending force by (K1+K2), and its output is added to the output of the subtractor 36 by an adder 40. An amplifier 42 then multiplies the output of the adder 40 by 1/K1, and its output is inputted to the amplifier 34 and also to a bending force controller 22. Hereby, a roll bender 20 adjusts the bending force to be given to a work roll 12.
JP7946380A 1980-06-12 1980-06-12 Rolling method Pending JPS577309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7946380A JPS577309A (en) 1980-06-12 1980-06-12 Rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7946380A JPS577309A (en) 1980-06-12 1980-06-12 Rolling method

Publications (1)

Publication Number Publication Date
JPS577309A true JPS577309A (en) 1982-01-14

Family

ID=13690572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7946380A Pending JPS577309A (en) 1980-06-12 1980-06-12 Rolling method

Country Status (1)

Country Link
JP (1) JPS577309A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140180U (en) * 1985-02-22 1986-08-30
JP2009022985A (en) * 2007-07-20 2009-02-05 Nisshin Steel Co Ltd Shape control method in cold rolling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449964A (en) * 1977-09-28 1979-04-19 Kawasaki Steel Co Method and apparatus for controlling shape of rolled plate in multistage continuous rolling mill
JPS551957A (en) * 1978-06-21 1980-01-09 Kawasaki Steel Corp Method and apparatus for controlling of rolling mills

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449964A (en) * 1977-09-28 1979-04-19 Kawasaki Steel Co Method and apparatus for controlling shape of rolled plate in multistage continuous rolling mill
JPS551957A (en) * 1978-06-21 1980-01-09 Kawasaki Steel Corp Method and apparatus for controlling of rolling mills

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140180U (en) * 1985-02-22 1986-08-30
JP2009022985A (en) * 2007-07-20 2009-02-05 Nisshin Steel Co Ltd Shape control method in cold rolling

Similar Documents

Publication Publication Date Title
JPS577309A (en) Rolling method
JPS56111510A (en) Vertical rolling mill
JPS53127353A (en) Method and apparatus for rolling by multistage rolling mill
JPS57160509A (en) Hot finish rolling method and its device
JPS5636307A (en) Controlling method for camber of hot strip
JPS5645204A (en) Controlling method for sheet crown
JPS57124515A (en) Controlling method for sheet thickness and surface evenness
JPS57127513A (en) Zero point adjusting method for roll gap of steel shapes rolling mill
JPS57177818A (en) Controlling method of rolling
JPS55165209A (en) Controlling method for tension
JPS5813405A (en) Method and device for variable controlling of transverse rigidity of rolling mill
JPS5976605A (en) Method for controlling shape and crown in rolling mill
JPS53146952A (en) Rolling mill
JPS577308A (en) Rolling method
JPS5564918A (en) Method and apparatus for automatic thickness control
JPS56114519A (en) Looper controller for continuous rolling mill
JPS5577922A (en) Feedforward controlling method for thickness of rolled material
JPS63180314A (en) Controller for plate shape and elongation rate of rolling mill
JPS55149717A (en) Automatic controlling method for thickness at rolling mill
SU829237A1 (en) Apparatus for automatic control of strip thickness in sheet rolling mill output
JPS57156827A (en) Automatic differential pressure setter
JPS5413445A (en) Bending method for roll of rolling mill
JPS5456063A (en) Controlling method for thickness of sheet
JPS5647206A (en) Controlling method for camber in rolling thick plate
JPS59174210A (en) Method for controlling sheet thickness of rolling material