ES389002A1 - Method and apparatus for controlling continuous tandem rolling mills - Google Patents

Method and apparatus for controlling continuous tandem rolling mills

Info

Publication number
ES389002A1
ES389002A1 ES389002A ES389002A ES389002A1 ES 389002 A1 ES389002 A1 ES 389002A1 ES 389002 A ES389002 A ES 389002A ES 389002 A ES389002 A ES 389002A ES 389002 A1 ES389002 A1 ES 389002A1
Authority
ES
Spain
Prior art keywords
mill
mill stand
counted
gauge
predetermined
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
ES389002A
Other languages
Spanish (es)
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 ES389002A1 publication Critical patent/ES389002A1/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
    • B21B37/24—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

Landscapes

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

Abstract

In a continuous tandem rolling mill, for varying the gauge of a strip during high speed rolling operation thereof, the number of pulse signals from a pulse transmitter associated with a deflector roller on the entry side of a plurality of mill stands is counted in response to a signal from a gauge varying point detector disposed on the entry side of the mill, the first mill stand is set to a predetermined rolling schedule when the number of pulse signals counted has reached a predetermined value under the assumption that the gauge varying point reaches the first mill stand, at the same time the counting operation of the number of pulses from a pulse transmitter associated with the roll of the first mill stand is commenced, the second mill stand is set to the predetermined rolling schedule when the counted number of pulses from the last mentioned pulse transmitter reaches the predetermined value, and similar setting operations are repeated for succeeding mill stands until the last mill stand is set to the predetermined rolling schedule.
ES389002A 1970-03-07 1971-03-06 Method and apparatus for controlling continuous tandem rolling mills Expired ES389002A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45019212A JPS4817146B1 (en) 1970-03-07 1970-03-07

Publications (1)

Publication Number Publication Date
ES389002A1 true ES389002A1 (en) 1974-02-16

Family

ID=11993046

Family Applications (1)

Application Number Title Priority Date Filing Date
ES389002A Expired ES389002A1 (en) 1970-03-07 1971-03-06 Method and apparatus for controlling continuous tandem rolling mills

Country Status (6)

Country Link
US (1) US3750437A (en)
JP (1) JPS4817146B1 (en)
DE (1) DE2110539C3 (en)
ES (1) ES389002A1 (en)
FR (1) FR2081773B1 (en)
GB (1) GB1304809A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035900B2 (en) * 1972-03-28 1975-11-19
US3852983A (en) * 1973-04-25 1974-12-10 Westinghouse Electric Corp Work strip gauge change during rolling in a tandem rolling mill
US4011743A (en) * 1976-04-20 1977-03-15 Westinghouse Electric Corporation Stand speed reference circuit for a continuous tandem rolling mill
JPS5467550A (en) * 1977-11-09 1979-05-31 Mitsubishi Electric Corp Shape control of rolled material
JPS6378856U (en) * 1986-11-10 1988-05-25
US4887343A (en) * 1987-05-29 1989-12-19 Fuji Photo Film Co., Ltd. Method and apparatus for roller leveler
US6526793B1 (en) * 2000-10-25 2003-03-04 Donald M. Danko Magnetic marking and positioning system for unfinished metal bars

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109966A (en) * 1958-06-19 1963-11-05 Armco Steel Corp Signal impulse integrator with variable time delay
BE621475A (en) * 1961-08-29
FR1338835A (en) * 1961-11-13 1963-09-27 Verwaltungs Ges Moeller & Neum Device for periodically switching on a shear to cut a rolled product in motion
BE637694A (en) * 1962-09-21
CH439825A (en) * 1965-12-23 1967-07-15 Velectra S A Device for advancing in steps of a strip of material having perforations
US3564882A (en) * 1968-04-22 1971-02-23 Allegheny Ludlum Steel Rolling mill control system
US3603124A (en) * 1968-05-09 1971-09-07 Nippon Kokan Kk Computer control system for rolling metal strips using feed-forward and prediction

Also Published As

Publication number Publication date
FR2081773B1 (en) 1974-02-22
GB1304809A (en) 1973-01-31
US3750437A (en) 1973-08-07
FR2081773A1 (en) 1971-12-10
JPS4817146B1 (en) 1973-05-26
DE2110539C3 (en) 1980-02-14
DE2110539B2 (en) 1979-06-21
DE2110539A1 (en) 1971-10-07

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