GB964607A - Improvements in or relating ti a method of and means for investigating and controlling the tension or compression of stock between two or more roll stands in continuous mill trains - Google Patents

Improvements in or relating ti a method of and means for investigating and controlling the tension or compression of stock between two or more roll stands in continuous mill trains

Info

Publication number
GB964607A
GB964607A GB1512762A GB1512762A GB964607A GB 964607 A GB964607 A GB 964607A GB 1512762 A GB1512762 A GB 1512762A GB 1512762 A GB1512762 A GB 1512762A GB 964607 A GB964607 A GB 964607A
Authority
GB
United Kingdom
Prior art keywords
stand
speed
rolls
stock
photo
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
GB1512762A
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.)
Schloemann AG
Original Assignee
Schloemann AG
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 Schloemann AG filed Critical Schloemann AG
Publication of GB964607A publication Critical patent/GB964607A/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
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

Landscapes

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

Abstract

964,607. Rolling. SCHLOEMANN A.G. April 18, 1962 [April 20, 1961], No. 15127/62. Heading B3M. [Also in Division G4] The rolls of a rolling mill are adjusted to avoid tension or compression in the stock passing between a pair of stands by measuring the speed of the leading end of the stock as it emerges from the first stand and the speed of the trailing end as it is drawn into the second stand and comparing them. Adjustments are made to make both speeds the same. In the form shown the speed of the leading end emerging from stand 1 is measured by gating clock pulses from a source 17 into a counter 15 during the interval between the time the leading end passes a photo-cell 10 and the time it passes a photo-cell 11. The speed of the trailing end being drawn into stand 6 is measured in the same way using the interval between the times at which the photo-cells 10 and 11 are uncovered. The two counts may be compared visually and adjustment made to the speed and/or pressure of the rolls 2 and 3 or rolls 8 and alternatively the comparison and control may be effected automatically. Instead of using photo-cells 10 and 11 the speed of the end emerging from stand 1 may be measured by counting pulses over the interval between the surges of current which accompany the entry of the end of the stock between the rolls 2 and 3 of stand 1 and subsequently between the rolls 7 and 8 of stand 6. The trailing end speed is similarly obtained from the times of sudden drops in current as the billet leaves stand 1 and then stand 6. In a further modification a measuring roller between the stands, pulses being counted during a revolution of the measuring roller.
GB1512762A 1961-04-20 1962-04-18 Improvements in or relating ti a method of and means for investigating and controlling the tension or compression of stock between two or more roll stands in continuous mill trains Expired GB964607A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961SC029573 DE1240795B (en) 1961-04-20 1961-04-20 Method and device for determining indirect tensile and compressive stresses between two rolling stands of a continuous rolling train for rigid rolling stock

Publications (1)

Publication Number Publication Date
GB964607A true GB964607A (en) 1964-07-22

Family

ID=7431474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1512762A Expired GB964607A (en) 1961-04-20 1962-04-18 Improvements in or relating ti a method of and means for investigating and controlling the tension or compression of stock between two or more roll stands in continuous mill trains

Country Status (2)

Country Link
DE (1) DE1240795B (en)
GB (1) GB964607A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391785A1 (en) * 1977-05-28 1978-12-22 Nippon Steel Corp LAMINATION PROCESS OF METAL PARTS AND ROLLING MACHINE FOR ITS IMPLEMENTATION

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564121C (en) * 1931-07-15 1932-11-14 Sack Gmbh Maschf Device for displaying the ratio of the speeds imparted to the rolling stock in successive rolling stands of continuous rolling mills during the rolling process
US2332573A (en) * 1941-10-01 1943-10-26 Carnegie Illinois Steel Corp Extensometer
US2332797A (en) * 1941-10-18 1943-10-26 Carnegie Illinois Steel Corp Extensometer
US2333864A (en) * 1942-01-15 1943-11-09 Carnegie Illinois Steel Corp Extensometer
GB640071A (en) * 1948-01-29 1950-07-12 Norton Co Ltd Sir James Farmer Improved means for measuring and indicating the tension in strip passing through a rolling mill
DE968271C (en) * 1954-04-01 1958-03-20 Schloemann Ag Device for regulating the tensile and compressive stresses occurring in the rolling stock between the individual roll stands of a continuously operating roll train
DE1808304U (en) * 1957-10-17 1960-03-24 Moeller & Neumann Gmbh DEVICE FOR THE INDEPENDENT SPEED CONTROL OF THE ROLLERS IN CONTINUOUS ROLLER MILLS.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391785A1 (en) * 1977-05-28 1978-12-22 Nippon Steel Corp LAMINATION PROCESS OF METAL PARTS AND ROLLING MACHINE FOR ITS IMPLEMENTATION

Also Published As

Publication number Publication date
DE1240795B (en) 1967-05-24

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