GB780486A - Improvements in or relating to rolling mills - Google Patents

Improvements in or relating to rolling mills

Info

Publication number
GB780486A
GB780486A GB2323/54A GB232354A GB780486A GB 780486 A GB780486 A GB 780486A GB 2323/54 A GB2323/54 A GB 2323/54A GB 232354 A GB232354 A GB 232354A GB 780486 A GB780486 A GB 780486A
Authority
GB
United Kingdom
Prior art keywords
representing
output
slider
speed
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
GB2323/54A
Inventor
Wilfrid Cecil Frede Hessenberg
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.)
British Iron and Steel Research Association BISRA
Original Assignee
British Iron and Steel Research Association BISRA
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 US25075D priority Critical patent/USRE25075E/en
Priority to BE535052D priority patent/BE535052A/xx
Application filed by British Iron and Steel Research Association BISRA filed Critical British Iron and Steel Research Association BISRA
Priority to GB2323/54A priority patent/GB780486A/en
Priority to DEB34181A priority patent/DE1118866B/en
Priority to FR1142917D priority patent/FR1142917A/en
Priority to US483910A priority patent/US2851911A/en
Publication of GB780486A publication Critical patent/GB780486A/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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • B21B37/46—Roll speed or drive motor control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/235—Calendar

Landscapes

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

Abstract

780,486. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Jan. 11, 1955 [Jan. 26, 1954], No. 2323/54. Class 83 (4). [Also in Groups XIX, XXXV and XXXVIII] In a multi-stage rolling mill for rolling wide steel or other strip, the thickness (h 2 ) of strip leaving the mill is measured, and indicated, by compounding signals representing the speed (v 1 ) and thickness (h 1 ) of the strip between two successive stages with a signal representing the speed (v 2 ) of strip leaving the mill, the product of speed and thickness being constant at all rolling stages. The derived signal representing (h 2 ) is compared with a reference value, and the resultant difference signal used for controlling the mill to maintain (h 2 ) at a desired value. The strip 15 passes between successive rollers 12a, 12b, 12c for intimate winding on a reel 20, driven by a motor 21, the rollers being driven by motors 22, and being adjustable by motors 23. A tachometer generator 19, associated with a speed sensing disc 18, has its output, representing the speed v 2 , applied to an arcuate potentiometer 25, a proportion of this output being tapped by a slider 26 for feeding to the input of a high-gain amplifier 27 in series opposition with the output of a second tachometer 17 representing the speed v 1 . The output of amplifier 27 energizes a motor 28 whose shaft carries slider 26, whereby the latter is adjusted to give zero input to the amplifier so that the proportion of the output of tachometer 19 which is tapped by the slider is in the ratio v 1 /v 2 . The output of a micrometer 13, representing the thickness h 1 , is applied to a second potentiometer 30 and a proportion, representing v 1 h 1 /v 2 , and thus h 2 , is tapped by a slider 29 adjustable by the motor-shaft in correspondence with slider 26. The output of slider 29, which operates an indicator 31 showing the value of h 2 , is compared with a reference value set on a potentiometer 33, the resulting error signal being applied to any of motors 21, 22, 23 to control the mill, thereby maintaining h 2 at a required value. In a modification, signals representing percentage deviations of v 1 h 1 and v 2 from set values are opposed to give a control signal representing the percentage deviation of h 2 from the required value.
GB2323/54A 1954-01-26 1954-01-26 Improvements in or relating to rolling mills Expired GB780486A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US25075D USRE25075E (en) 1954-01-26 Rolling mills
BE535052D BE535052A (en) 1954-01-26
GB2323/54A GB780486A (en) 1954-01-26 1954-01-26 Improvements in or relating to rolling mills
DEB34181A DE1118866B (en) 1954-01-26 1955-01-19 Device for measuring and regulating the thickness of a strip leaving a rolling mill
FR1142917D FR1142917A (en) 1954-01-26 1955-01-19 Improvements concerning rolling mills
US483910A US2851911A (en) 1954-01-26 1955-01-25 Rolling mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2323/54A GB780486A (en) 1954-01-26 1954-01-26 Improvements in or relating to rolling mills

Publications (1)

Publication Number Publication Date
GB780486A true GB780486A (en) 1957-08-07

Family

ID=9737527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2323/54A Expired GB780486A (en) 1954-01-26 1954-01-26 Improvements in or relating to rolling mills

Country Status (5)

Country Link
US (2) US2851911A (en)
BE (1) BE535052A (en)
DE (1) DE1118866B (en)
FR (1) FR1142917A (en)
GB (1) GB780486A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000243A (en) * 1955-09-09 1961-09-19 Westinghouse Electric Corp Sheet length controller
US3089363A (en) * 1957-05-29 1963-05-14 Westinghouse Electric Corp Strip thickness control apparatus
US3045517A (en) * 1957-05-29 1962-07-24 Westinghouse Electric Corp Strip thickness control apparatus
US3030836A (en) * 1957-07-08 1962-04-24 Jones & Laughlin Steel Corp Continuous strip gauge control means
US3096670A (en) * 1957-07-16 1963-07-09 Westinghouse Electric Corp Apparatus and method for workpiece thickness control
GB899532A (en) * 1957-09-17 1962-06-27 British Aluminium Co Ltd Improvements in or relating to the manufacture of metal sheet or strip
US3049950A (en) * 1957-09-17 1962-08-21 British Aluminium Co Ltd Manufacture of metal sheet or strip
BE572065A (en) * 1957-10-16
US3024680A (en) * 1958-06-02 1962-03-13 Ind Nuclconics Corp Process measurement and control
US3015974A (en) * 1958-09-18 1962-01-09 Gen Electric Automatic control system for rolling mills and adjustable dies
US3078746A (en) * 1958-11-21 1963-02-26 George P Dirth Gage control system for strip mill
US3036481A (en) * 1958-11-21 1962-05-29 George P Dirth Gage control system for strip mill
DE1293712B (en) * 1959-02-05 1969-04-30 Rega Gmbh & Co Kg Thickness control device for rolling machines
LU38301A1 (en) * 1959-02-26
US3054311A (en) * 1959-04-17 1962-09-18 Allegheny Ludlum Steel Automatic control system for rolling mills and adjustable dies with automatic error detection
US3054310A (en) * 1959-05-21 1962-09-18 Industrial Nucleonics Corp Control system
US3177346A (en) * 1959-11-06 1965-04-06 United Steel Companies Ltd Apparatus for use in controlling a rolling mill
US3103138A (en) * 1960-06-09 1963-09-10 Westinghouse Electric Corp Foil thickness control apparatus
US3151507A (en) * 1961-05-23 1964-10-06 Datex Corp Speed control system
BE624109A (en) * 1961-10-27
US3169424A (en) * 1962-01-30 1965-02-16 Gen Electric Automatic control system for rolling mills and adjustable dies
DE1290234B (en) * 1962-12-24 1969-03-06 Siemens Ag Device for controlling the thickness of the rolled material in hot rolling mills
US3365920A (en) * 1963-09-02 1968-01-30 Hitachi Ltd Control apparatus for tandem rolling mills
CH207631A (en) * 1964-12-28 1939-11-15 Caironi Walter Light alloy wheel rim and method of making the same.
GB1163274A (en) * 1965-12-28 1969-09-04 British Iron Steel Research Improvements in and relating to Rolling Mills
US3444713A (en) * 1966-07-15 1969-05-20 Gen Dynamics Corp Volume flow automatic gage control
AT284043B (en) * 1966-12-06 1970-08-25 Boehler & Co Ag Geb Process for regulating working conditions in the manufacture of rolled products from continuously cast products made from refractory metals, in particular from unalloyed and alloyed steels
FR1513585A (en) * 1967-01-06 1968-02-16 Spidem Ste Nle Method and device for controlling or measuring the thickness of a strip which is wound in continuous motion on a drum
US3564882A (en) * 1968-04-22 1971-02-23 Allegheny Ludlum Steel Rolling mill control system
DE2947233C2 (en) * 1979-11-23 1992-03-12 Kocks Technik Gmbh & Co, 4010 Hilden Device for controlling the wall thickness of pipes
GB8432438D0 (en) * 1984-12-21 1985-02-06 De La Rue Syst Sensing sheets
CN108043881B (en) * 2017-12-12 2019-03-29 中冶南方工程技术有限公司 A kind of thickness of single-stand cold-rolling machine and the decoupling control method and system of tension

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977619A (en) * 1931-04-15 1934-10-23 Aluminum Co Of America Automatic gauge control system for rolling mills
US2137611A (en) * 1933-10-20 1938-11-22 Aluminum Co Of America Gauge control apparatus
US2051018A (en) * 1934-03-28 1936-08-11 Gen Electric Speed ratio indicating device
US2264095A (en) * 1936-12-18 1941-11-25 Gen Electric Control system
US2281083A (en) * 1938-04-28 1942-04-28 Westinghouse Electric & Mfg Co Control system for rolling mills
GB533162A (en) * 1938-08-11 1941-02-07 British Thomson Houston Co Ltd Improvements in and relating to the automatic control of the thickness of material issuing from rolling mills and the like
US2275509A (en) * 1938-08-22 1942-03-10 Aetna Standard Eng Co Control for rolling mills
US2297812A (en) * 1939-06-30 1942-10-06 Westinghouse Electric & Mfg Co Draft control system
DE740975C (en) * 1939-06-30 1943-11-01 Siemens Ag Device for regulating the cross-section reduction of the rolling stock in strip rolling mills
US2303596A (en) * 1941-04-18 1942-12-01 Sperry Prod Inc Sheet thickness gauge for continuous rolling mills
US2332272A (en) * 1941-04-18 1943-10-19 Sperry Prod Inc Sheet thickness gauge for continuous rolling mills
DE815063C (en) * 1949-01-01 1951-10-22 Brown Device for monitoring of winding devices driven by electric motors
BE498632A (en) * 1949-10-11

Also Published As

Publication number Publication date
DE1118866B (en) 1961-12-07
US2851911A (en) 1958-09-16
BE535052A (en)
FR1142917A (en) 1957-09-24
USRE25075E (en) 1961-10-31

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