ATE236740T1 - SYSTEM AND METHOD FOR ROLLING SLAB - Google Patents

SYSTEM AND METHOD FOR ROLLING SLAB

Info

Publication number
ATE236740T1
ATE236740T1 AT97900997T AT97900997T ATE236740T1 AT E236740 T1 ATE236740 T1 AT E236740T1 AT 97900997 T AT97900997 T AT 97900997T AT 97900997 T AT97900997 T AT 97900997T AT E236740 T1 ATE236740 T1 AT E236740T1
Authority
AT
Austria
Prior art keywords
slab
roll stand
desired tension
roll
torque
Prior art date
Application number
AT97900997T
Other languages
German (de)
Inventor
Milton-Scott Bouchillon
Dietrich Wohld
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 ATE236740T1 publication Critical patent/ATE236740T1/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/04—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/10—Motor power; motor current
    • B21B2275/12—Roll torque

Landscapes

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

Abstract

A method and a device are provided for rolling a slab (1, 5), in particular a slab whose thickness varies over its length, using at least two roll stands (6, 7) with a substantially constant and preferably low tension being maintained in the slab (1, 5) between the first and the second roll stand, and with substantially constant exit thickness. Until the desired tension is reached in the slab, the rotational speed in the second roll stand (7) is kept constant and the torque in the first roll stand (6) is controlled so as to build up the desired tension in the slab (1, 5) between the first and the second roll stand. After the desired tension is reached, the rotational speed of the first roll stand (6) and the torque of the second roll stand (7) are kept constant.
AT97900997T 1996-01-23 1997-01-10 SYSTEM AND METHOD FOR ROLLING SLAB ATE236740T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96100923 1996-01-23
PCT/EP1997/000098 WO1997027012A1 (en) 1996-01-23 1997-01-10 System and method for rolling slabs

Publications (1)

Publication Number Publication Date
ATE236740T1 true ATE236740T1 (en) 2003-04-15

Family

ID=8222426

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97900997T ATE236740T1 (en) 1996-01-23 1997-01-10 SYSTEM AND METHOD FOR ROLLING SLAB

Country Status (5)

Country Link
EP (1) EP0876227B1 (en)
KR (1) KR100477238B1 (en)
AT (1) ATE236740T1 (en)
DE (1) DE69720689T2 (en)
WO (1) WO1997027012A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2135314C1 (en) * 1998-03-12 1999-08-27 Галкин Михаил Петрович Method of automatic control of process of bar metal continuous rolling with minimal tension or end pushing
RU2147951C1 (en) * 1999-06-07 2000-04-27 Открытое акционерное общество "Магнитогорский металлургический комбинат" Strip interstand tension automatic control system
CN101602068B (en) * 2009-07-07 2011-08-17 东北大学 Control method and control system of tension in the process of rolling periodic variable-thickness strips
RU2437731C1 (en) * 2010-05-14 2011-12-27 Закрытое акционерное общество "Автоматизированные системы и комплексы" Method of automatic control over continuous bar rolling with minimum tension or metal support between stands

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274832A (en) *
DE1427804A1 (en) * 1958-12-29 1969-03-27 Stich Dr Ing Wilhelm Process for operating a continuous hot strip finishing train
DE1602203A1 (en) * 1967-03-28 1970-04-16 Wissenschaftlich Tech Zentrum Drive for rolling and roller straightening machines
US3807206A (en) * 1972-09-29 1974-04-30 J Connors Strip gage change during rolling in a tanden rolling mill
FR2354154A1 (en) * 1976-06-11 1978-01-06 Jeumont Schneider STRAIN-FREE LAMINATION PROCESS OF METALS AND DEVICE FOR IMPLEMENTING THIS PROCESS
AU493666B2 (en) * 1976-07-16 1976-09-30 Hitachi Limited Interstand tension control method and apparatus for tandem rolling mills
JPS56114522A (en) * 1980-02-13 1981-09-09 Kikai Syst Shinko Kyokai Speed control method of direct rolling mill
FR2483268A1 (en) * 1980-05-28 1981-12-04 Jeumont Schneider METHOD AND DEVICE FOR THE ROLLING WITHOUT CCONTRAINTE OF METALS
JPS58205609A (en) * 1982-05-25 1983-11-30 Toshiba Corp Control device for continuous rolling mill
JPS58218304A (en) * 1982-06-14 1983-12-19 Hitachi Ltd Control device for continuous casting equipment
DE3839151A1 (en) * 1988-11-17 1990-05-23 Mannesmann Ag METHOD FOR PRODUCING HOT-ROLLED STEEL STRIP FROM A STRIP-SHAPED PRE-MATERIAL

Also Published As

Publication number Publication date
DE69720689T2 (en) 2003-12-24
WO1997027012A1 (en) 1997-07-31
DE69720689D1 (en) 2003-05-15
KR19990082214A (en) 1999-11-25
EP0876227B1 (en) 2003-04-09
EP0876227A1 (en) 1998-11-11
KR100477238B1 (en) 2005-07-12

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