JPS54155961A - Preventing method for camber in reversible rolling - Google Patents

Preventing method for camber in reversible rolling

Info

Publication number
JPS54155961A
JPS54155961A JP6440478A JP6440478A JPS54155961A JP S54155961 A JPS54155961 A JP S54155961A JP 6440478 A JP6440478 A JP 6440478A JP 6440478 A JP6440478 A JP 6440478A JP S54155961 A JPS54155961 A JP S54155961A
Authority
JP
Japan
Prior art keywords
rolling
roll
mill
difference
normal
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
JP6440478A
Other languages
Japanese (ja)
Other versions
JPS6116524B2 (en
Inventor
Kenji Hirabe
Yukifumi Ogawa
Sadakazu Masuda
Takeshi Hirasawa
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP6440478A priority Critical patent/JPS54155961A/en
Publication of JPS54155961A publication Critical patent/JPS54155961A/en
Publication of JPS6116524B2 publication Critical patent/JPS6116524B2/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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • 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
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/64—Mill spring or roll spring compensation systems, e.g. control of prestressed mill stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap

Abstract

PURPOSE:To make possible the generation of camber to be perfectly prevented, by giving a specified gap difference to the right and left roll gaps between respective passes, according to the forecast rolling load for each of the normal and reverse rolling passes and the rigidity difference between the right and left mill post systems. CONSTITUTION:The rolling mill consists of the reducing roll 5 and the backup roll 6 and executes the normal and reverse rolling for the material 7 to be rolled; the mill spring factor of the left post system of above rolling mill is taken as Ml, and that of the right post system is taken as Mr, etc.; the left and right screws 1, 2, are tightened under the kiss-roll condition using the left and right load cells 3, 4, on purpose to obtain the mill spring constant for passes of normal and reverse rolling by the roll. After that, the difference between the set values of rolling reduction is operated from above mill spring constant and the rolling load of each roll depending on the specified formula, and a difference is given to the set values of rolling reduction for the left and right screw systems so as to make identical the left and right loads correspondingly to the mill spring condition at the normal and reverse rolling, on purpose to compensate the thickness difference between the left and right; hererby, the camber is prevented.
JP6440478A 1978-05-31 1978-05-31 Preventing method for camber in reversible rolling Granted JPS54155961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6440478A JPS54155961A (en) 1978-05-31 1978-05-31 Preventing method for camber in reversible rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6440478A JPS54155961A (en) 1978-05-31 1978-05-31 Preventing method for camber in reversible rolling

Publications (2)

Publication Number Publication Date
JPS54155961A true JPS54155961A (en) 1979-12-08
JPS6116524B2 JPS6116524B2 (en) 1986-05-01

Family

ID=13257332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6440478A Granted JPS54155961A (en) 1978-05-31 1978-05-31 Preventing method for camber in reversible rolling

Country Status (1)

Country Link
JP (1) JPS54155961A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0721811A1 (en) * 1995-01-07 1996-07-17 Sms Schloemann-Siemag Aktiengesellschaft Method of regulating the roll gap section

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468761A (en) * 1977-11-11 1979-06-02 Nippon Steel Corp Controlling method for sheet rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468761A (en) * 1977-11-11 1979-06-02 Nippon Steel Corp Controlling method for sheet rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0721811A1 (en) * 1995-01-07 1996-07-17 Sms Schloemann-Siemag Aktiengesellschaft Method of regulating the roll gap section

Also Published As

Publication number Publication date
JPS6116524B2 (en) 1986-05-01

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