GB859566A - Improvements in or relating to rolling mill control apparatus - Google Patents

Improvements in or relating to rolling mill control apparatus

Info

Publication number
GB859566A
GB859566A GB3946/57A GB394657A GB859566A GB 859566 A GB859566 A GB 859566A GB 3946/57 A GB3946/57 A GB 3946/57A GB 394657 A GB394657 A GB 394657A GB 859566 A GB859566 A GB 859566A
Authority
GB
United Kingdom
Prior art keywords
speed
rolling mill
relating
feb
control apparatus
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
GB3946/57A
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.)
Dalmine SpA
Original Assignee
Dalmine SpA
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 Dalmine SpA filed Critical Dalmine SpA
Publication of GB859566A publication Critical patent/GB859566A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills

Landscapes

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

Abstract

859,566. Automatic speed control systems. DALMINE S.p.A. Feb. 5, 1957 [Feb. 8, 1956], No. 3946/57. Class 38 (4). In a pilger type rolling mill the speed of the motor driving the rolls and the feed electric motor are electrically maintained in a predetermined relationship. The speed of feed roller B is determined by the energization of its field and the field applied to the Ward-Leonard generator E in accordance with the outputs of tachometers A 1 , B 1 . Amplifying control unit C responsive to the tachometer outputs is influenced also by a speed'programming device D. Bias according to work resistance may also be provided.
GB3946/57A 1956-02-08 1957-02-05 Improvements in or relating to rolling mill control apparatus Expired GB859566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT859566X 1956-02-08

Publications (1)

Publication Number Publication Date
GB859566A true GB859566A (en) 1961-01-25

Family

ID=11329844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3946/57A Expired GB859566A (en) 1956-02-08 1957-02-05 Improvements in or relating to rolling mill control apparatus

Country Status (2)

Country Link
FR (1) FR1165727A (en)
GB (1) GB859566A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951264C2 (en) * 1979-12-17 1981-11-19 Mannesmann AG, 4000 Düsseldorf Equipment at hot pilger mills for rolling seamless tubes
DE3376806D1 (en) * 1983-12-13 1988-07-07 Sumitomo Metal Ind COLD PILGER MILL

Also Published As

Publication number Publication date
FR1165727A (en) 1958-10-28

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