ATE25013T1 - CIRCUIT ARRANGEMENT FOR CONTROLLING THE TRAINS TRANSMITTED IN THE ROLLING BETWEEN THE STANDS IN A MULTI-STAND ROLLING MILL. - Google Patents

CIRCUIT ARRANGEMENT FOR CONTROLLING THE TRAINS TRANSMITTED IN THE ROLLING BETWEEN THE STANDS IN A MULTI-STAND ROLLING MILL.

Info

Publication number
ATE25013T1
ATE25013T1 AT83106518T AT83106518T ATE25013T1 AT E25013 T1 ATE25013 T1 AT E25013T1 AT 83106518 T AT83106518 T AT 83106518T AT 83106518 T AT83106518 T AT 83106518T AT E25013 T1 ATE25013 T1 AT E25013T1
Authority
AT
Austria
Prior art keywords
theoretical
value
tension
values
stage
Prior art date
Application number
AT83106518T
Other languages
German (de)
Inventor
Roland Dipl-Ing Weber
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE25013T1 publication Critical patent/ATE25013T1/en

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
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Machine Tool Units (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

1. A circuit arrangement for the regulation of the tensile force transferred in the rolled stock between the stages (minimal tensile regulation) and the rolling speed of a mill train comprising m or 4 stages, each of which is equipped with driving means, a speed control unit for each driving means and a control circuit which comprises an actual value calculator (16) for determining the actual values of the torque, which is conditional upon the tension, from the respective values of driving, accelerating and deforming moments, and which comprise a theoretical value calculator (17) for calculating the theoretical values of the torques, which are conditional upon the tension, of each individual stage from the predetermined values of the (specific) tensile stress which is related to the cross-sectional unit of the rolled stock, the roller radius and the cross-section of the rolled stock for each stage, where a correction value for the theoretical value of the speed regulator is formed from the theoretical/actual value comparison of the torques which are conditional upon the tension, and which comprises a superimposed correction regulator which forms a correction value sigma k * which is fed to the theoretical value calculators for the superimposed correction of the theoretical values of the torques which are conditional upon the tension, characterised in that in order to stabilise the rolling speed of the mill train during the transit phase of the rolled stock the speed regulator (4.7) of the last stage (m or 4) is operated by means of a firmly predetermined, uncorrected theoretical value (n*) and the control circuit of the last stage (4.16; 4.17; 32) is designed to be such that on the basis of the theoretical/actual value comparison of the tension-dependent torque (DELTA Mz) of the stage it forms a correction value (sigma k *) for the superimposed control devices assigned to the speed regulators of all stages (1.7 to 4.7), which influences the theoretical values for the output specific tensile force (sigma A *) of the individual stages on the basis of the correction value (sigma k *) in such a manner that the deviation of the tensile force between the penultimate (m-1 or 3) and the ultimate stage (m or 4) is compensated by a predetermined theoretical value.
AT83106518T 1983-07-04 1983-07-04 CIRCUIT ARRANGEMENT FOR CONTROLLING THE TRAINS TRANSMITTED IN THE ROLLING BETWEEN THE STANDS IN A MULTI-STAND ROLLING MILL. ATE25013T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83106518A EP0130231B1 (en) 1983-07-04 1983-07-04 Circuit arrangement to regulate the tensile force transferred between the housings of a multiple housing mill train

Publications (1)

Publication Number Publication Date
ATE25013T1 true ATE25013T1 (en) 1987-02-15

Family

ID=8190557

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83106518T ATE25013T1 (en) 1983-07-04 1983-07-04 CIRCUIT ARRANGEMENT FOR CONTROLLING THE TRAINS TRANSMITTED IN THE ROLLING BETWEEN THE STANDS IN A MULTI-STAND ROLLING MILL.

Country Status (4)

Country Link
EP (1) EP0130231B1 (en)
JP (1) JPS6037207A (en)
AT (1) ATE25013T1 (en)
DE (1) DE3369256D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439663B1 (en) * 1990-02-02 1993-12-01 Siemens Aktiengesellschaft Method of controlling a continuous multistand rolling mill
DE4430550A1 (en) * 1994-08-27 1996-02-29 Licentia Gmbh Method for controlling web speeds in a device for transporting or stretching a web of material
RU2620424C2 (en) * 2015-10-21 2017-05-25 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Магнитогорский государственный технический университет им. Г.И. Носова" (ФГБОУ ВПО "МГТУ") Method of automatic control of the speed of horizontal and vertical rollers of the universal cell of the hot rolling steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226316A (en) * 1975-08-25 1977-02-26 Naniwa Seisakusho Kk Turntable reciprocative rotation type twoostation greensand mold
JPS5298663A (en) * 1976-02-16 1977-08-18 Nippon Kokan Kk Device for controlling tension in tandem rolling machine
DE2721973A1 (en) * 1977-05-14 1978-11-23 Schloemann Siemag Ag ROLLING OF HOT STRIP IN A CONTINUOUS ROLLING MILL
DE2834102C2 (en) * 1978-08-03 1982-11-18 Siemens AG, 1000 Berlin und 8000 München Device for regulating the tensile force transmitted in the rolling stock in a rolling train containing m stands

Also Published As

Publication number Publication date
EP0130231A1 (en) 1985-01-09
DE3369256D1 (en) 1987-02-26
EP0130231B1 (en) 1987-01-21
JPS6037207A (en) 1985-02-26

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee