GB1225520A - - Google Patents

Info

Publication number
GB1225520A
GB1225520A GB1225520DA GB1225520A GB 1225520 A GB1225520 A GB 1225520A GB 1225520D A GB1225520D A GB 1225520DA GB 1225520 A GB1225520 A GB 1225520A
Authority
GB
United Kingdom
Prior art keywords
control
signals
tension
rolls
mill
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
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
Priority to DE19681811238 priority Critical patent/DE1811238A1/en
Application filed filed Critical
Priority to GB5665768 priority
Priority to FR180147 priority
Publication of GB1225520A publication Critical patent/GB1225520A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls

Abstract

1,225,520. Automatic control of rolling. INSTITUT AVTOMATIKI. Nov. 29, 1968, No. 56657/68. Heading G3R. In a control system for a metal strip rolling mill, roller-type detectors measure tension at different points across the width of the strip and automatically control, through electrical amplifiers, valves which determine the feeds of cooling liquid to corresponding portions of the mill rolls. In Fig. 2, rollers 1 exerting pressure at different points across the width of metal strip 5 passing through mill rolls 6 and 7 are associated with tensionmeters 2 which produce A.C. signals corresponding to the tensions in the material at these points. Each of these signals is applied to a transducer 3 in which the signal is rectified, compensated for roller unbalance at 24, and compared with the average of the three tension signals at 16 so that any error exceeding a predetermined value is effective through bi-stable magnetic amplifiers 31, 32 to open or close valves 4 and thus control the flow of cooling liquid through sprays 14 on to the mill rolls so that a desired tension ratio and hence a desired cross-sectional shape is maintained. The tension ratio error signals developed from the outer tensiometers may also be applied as shown to transducers 15 which control screwdown motors 17 on each side of the rolls to assist correction.
GB1225520D 1968-11-27 1968-11-29 Expired GB1225520A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19681811238 DE1811238A1 (en) 1968-11-27 1968-11-27 Device for regulating the strip profile of the rolled material in thin sheet cold rolling mills
GB5665768 1968-11-29
FR180147 1968-12-23

Publications (1)

Publication Number Publication Date
GB1225520A true GB1225520A (en) 1971-03-17

Family

ID=27181635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225520D Expired GB1225520A (en) 1968-11-27 1968-11-29

Country Status (3)

Country Link
DE (1) DE1811238A1 (en)
FR (1) FR1597078A (en)
GB (1) GB1225520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160136A (en) * 1984-05-23 1985-12-18 Achenbach Buschhuetten Gmbh Apparatus for cold rolling mills for detecting and controlling the flatness of rolled strip

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422451B1 (en) * 1978-04-13 1981-08-07 Usinor
SE446952B (en) * 1980-04-25 1986-10-20 Asea Ab CONTROL DEVICE FOR TAPE OR PLATFORM
DE3037584A1 (en) * 1980-10-04 1982-05-19 Schloemann-Siemag AG, 4000 Düsseldorf METHOD AND ARRANGEMENT FOR ROLLING STRESS-FREE ROLLING STRIP
EP0054172B1 (en) * 1980-12-12 1985-06-05 Sms Schloemann-Siemag Aktiengesellschaft Method of and arrangement for rolling stress-free strip
US4467629A (en) * 1981-10-02 1984-08-28 Sms Schloemann-Siemag Ag Method of flattening steel strip in rolling mill
GB8326652D0 (en) * 1983-10-05 1983-11-09 Davy Mckee Sheffield Rolling mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160136A (en) * 1984-05-23 1985-12-18 Achenbach Buschhuetten Gmbh Apparatus for cold rolling mills for detecting and controlling the flatness of rolled strip
US4750343A (en) * 1984-05-23 1988-06-14 Gerhard Richter Device for detecting and regulating the planeness of strip-shaped rolled products, especially thin-gage strips, for cold rolling mills

Also Published As

Publication number Publication date
FR1597078A (en) 1970-06-22
DE1811238A1 (en) 1970-06-25

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees