JPS55122610A - Flatness-correcting method in hot rolling - Google Patents

Flatness-correcting method in hot rolling

Info

Publication number
JPS55122610A
JPS55122610A JP2966979A JP2966979A JPS55122610A JP S55122610 A JPS55122610 A JP S55122610A JP 2966979 A JP2966979 A JP 2966979A JP 2966979 A JP2966979 A JP 2966979A JP S55122610 A JPS55122610 A JP S55122610A
Authority
JP
Japan
Prior art keywords
roll
strip
rolls
shape
function
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
JP2966979A
Other languages
Japanese (ja)
Inventor
Yutaka Takemoto
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2966979A priority Critical patent/JPS55122610A/en
Publication of JPS55122610A publication Critical patent/JPS55122610A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/18—Elongation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets

Landscapes

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

Abstract

PURPOSE:To make it possible to correct the faltness of a coil over whole length thereof, by imparting the same function as that of skin-pass roll to a coiling pinch roll installed on the downstream side of a finishing mill, so as to give a specified elongation to a hot rolled strip having been finish-rolled. CONSTITUTION:To a coiler pinch roll 2 installed on the downstream side of a finishing mill is imparted a function of reduction in addn. to the feeding function. Usual rolls are used for the rolls 2, or a soft roll is used for the upper roll 21, and the roll 2 has a variable crown structure which is capable of changing the crown shape by hydraulic press., and a screw down device 4 movable vertically is attached when the usual rolls are used. This reduction process is so adjusted that elongation not smaller than 2% is given to the strip S. The surface shape of the strip S is detected by means of a surface-shape-detecting unit 5 installed on the outlet side of the roll 2, and the signal is fed to a control unit 6, where the measured value inputted from the detector 5 is compared with the set value, and the screw down device 4 is ordered to change reduction according to the deviation.
JP2966979A 1979-03-14 1979-03-14 Flatness-correcting method in hot rolling Pending JPS55122610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2966979A JPS55122610A (en) 1979-03-14 1979-03-14 Flatness-correcting method in hot rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2966979A JPS55122610A (en) 1979-03-14 1979-03-14 Flatness-correcting method in hot rolling

Publications (1)

Publication Number Publication Date
JPS55122610A true JPS55122610A (en) 1980-09-20

Family

ID=12282511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2966979A Pending JPS55122610A (en) 1979-03-14 1979-03-14 Flatness-correcting method in hot rolling

Country Status (1)

Country Link
JP (1) JPS55122610A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0858845A1 (en) * 1997-02-06 1998-08-19 Sms Schloemann-Siemag Aktiengesellschaft Roller for measuring flatness
JP2008230313A (en) * 2007-03-16 2008-10-02 Ykk Corp Connector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257065A (en) * 1975-11-05 1977-05-11 Sumitomo Metal Ind Soft sleeve type roll with variable crown
JPS5258045A (en) * 1975-11-07 1977-05-13 Sumitomo Metal Ind Method to control pinch roll pressing for winding machine
JPS52140452A (en) * 1976-05-20 1977-11-24 Nippon Steel Corp Method of rolling metal strip
JPS5352911U (en) * 1976-09-29 1978-05-06

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257065A (en) * 1975-11-05 1977-05-11 Sumitomo Metal Ind Soft sleeve type roll with variable crown
JPS5258045A (en) * 1975-11-07 1977-05-13 Sumitomo Metal Ind Method to control pinch roll pressing for winding machine
JPS52140452A (en) * 1976-05-20 1977-11-24 Nippon Steel Corp Method of rolling metal strip
JPS5352911U (en) * 1976-09-29 1978-05-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0858845A1 (en) * 1997-02-06 1998-08-19 Sms Schloemann-Siemag Aktiengesellschaft Roller for measuring flatness
JP2008230313A (en) * 2007-03-16 2008-10-02 Ykk Corp Connector

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