GB1378845A - Method and apparatus for shape control of metal products in contin uous rolling mill - Google Patents

Method and apparatus for shape control of metal products in contin uous rolling mill

Info

Publication number
GB1378845A
GB1378845A GB1469073A GB1469073A GB1378845A GB 1378845 A GB1378845 A GB 1378845A GB 1469073 A GB1469073 A GB 1469073A GB 1469073 A GB1469073 A GB 1469073A GB 1378845 A GB1378845 A GB 1378845A
Authority
GB
United Kingdom
Prior art keywords
stands
point
bending
rolling
roll
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.)
Expired
Application number
GB1469073A
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
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1378845A publication Critical patent/GB1378845A/en
Expired 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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B21B2261/05—Different constant thicknesses in one rolled product
    • 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
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements

Abstract

1378845 Rolling mills NIPPON KOKAN KK 27 March 1973 [28 March 1972] 14690/73 Heading B3M The individual stands of a tandem strip rolling mill are successively adjusted to change the degree of bending of their rolls, as a point a in a rolled strip 1 passes the stands, the point corresponding to a change in thickness of the strip due to a variation in the rolling schedule. When the point a reaches a detector 23, pulses from a bridle roll assembly 7 are counted in a counter 14 until a distance corresponding to l 1 is indicated (i.e. the point a has reached stand No. 1). An output signal from a signal generator 17 then passes to a computer 22, and the bending of the rolls in stand No. 1 is automatically altered. By a similar arrangement, pulses from the stands are successively counted down to indicate when the point a has reached the respective stands, and the roll bending of the stands is suitably changed. A compensating circuit 13 between the stands and the counter 14 takes account of any slip during rolling, and of variations in the bridle roll and mill roll diameters.
GB1469073A 1972-03-28 1973-03-27 Method and apparatus for shape control of metal products in contin uous rolling mill Expired GB1378845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47030962A JPS5035900B2 (en) 1972-03-28 1972-03-28

Publications (1)

Publication Number Publication Date
GB1378845A true GB1378845A (en) 1974-12-27

Family

ID=12318284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1469073A Expired GB1378845A (en) 1972-03-28 1973-03-27 Method and apparatus for shape control of metal products in contin uous rolling mill

Country Status (6)

Country Link
US (1) US3913363A (en)
JP (1) JPS5035900B2 (en)
DE (1) DE2314701B2 (en)
FR (1) FR2178126B1 (en)
GB (1) GB1378845A (en)
IT (1) IT981996B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5691918A (en) * 1979-12-27 1981-07-25 Mitsubishi Electric Corp Load redistribution controller for continuous rolling mill
KR960010237B1 (en) * 1992-08-07 1996-07-26 가와사끼 세이데쓰 가부시끼가이샤 Endless hot rolling method
DE19939166B4 (en) * 1999-08-20 2005-07-07 Muhr Und Bender Kg Method for flexible rolling of a metal strip
EP1080800B1 (en) * 1999-08-06 2005-01-12 Muhr und Bender KG Method for flexibly rolling a metal strip
ATE289229T1 (en) 1999-08-06 2005-03-15 Muhr & Bender Kg METHOD FOR FLEXIBLE ROLLING A METAL STRIP

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817146B1 (en) * 1970-03-07 1973-05-26
JPS4936548B1 (en) * 1970-03-16 1974-10-01
US3714805A (en) * 1971-11-11 1973-02-06 Wean United Inc Control system and method for concurrent automatic gage and crown control of a rolling mill

Also Published As

Publication number Publication date
US3913363A (en) 1975-10-21
JPS4911755A (en) 1974-02-01
JPS5035900B2 (en) 1975-11-19
DE2314701A1 (en) 1973-10-11
DE2314701B2 (en) 1977-10-20
IT981996B (en) 1974-10-10
FR2178126A1 (en) 1973-11-09
USB341579I5 (en) 1975-01-28
FR2178126B1 (en) 1976-04-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930326