[go: up one dir, main page]

GB2009974A - Modified twin stand control system - Google Patents

Modified twin stand control system

Info

Publication number
GB2009974A
GB2009974A GB7846494A GB7846494A GB2009974A GB 2009974 A GB2009974 A GB 2009974A GB 7846494 A GB7846494 A GB 7846494A GB 7846494 A GB7846494 A GB 7846494A GB 2009974 A GB2009974 A GB 2009974A
Authority
GB
United Kingdom
Prior art keywords
width
stand
speed
controls
stock
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.)
Withdrawn
Application number
GB7846494A
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 British Steel Corp filed Critical British Steel Corp
Priority to GB7846494A priority Critical patent/GB2009974A/en
Publication of GB2009974A publication Critical patent/GB2009974A/en
Withdrawn legal-status Critical Current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
    • B21B37/48—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
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process

Landscapes

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

Abstract

Errors in the width of stock rolled in a train of mill stands are detected and the rotational speed or the roll separation of one mill stand adjusted to vary interstand tension in a sense to minimise the detected errors in the stock width. The roll separation or roll rotational speed, respectively, of at least one other mill stand of the train is subsequently adjusted in a sense to minimise the interstand tension caused by the adjustment to the first-mentioned mill stand. The stock has substantially equal width and height dimensions. In the figure, 8 measures the height for control of the gap of stand 2 and the width for speed control via "conditioner" 13, limiter 14 and "set point controller" 15.6 measures interstand tension and also controls speed via 15; it also controls the gap of stand 1. "Back tension" is measured at 21 and controls the speed of both stands. No circuit details are disclosed. <IMAGE>
GB7846494A 1977-11-30 1978-11-29 Modified twin stand control system Withdrawn GB2009974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7846494A GB2009974A (en) 1977-11-30 1978-11-29 Modified twin stand control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4984877 1977-11-30
GB7846494A GB2009974A (en) 1977-11-30 1978-11-29 Modified twin stand control system

Publications (1)

Publication Number Publication Date
GB2009974A true GB2009974A (en) 1979-06-20

Family

ID=26266556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7846494A Withdrawn GB2009974A (en) 1977-11-30 1978-11-29 Modified twin stand control system

Country Status (1)

Country Link
GB (1) GB2009974A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000002677A1 (en) * 1998-07-10 2000-01-20 Abb Ab A method and a device for controlling a rolling mill
EP1066891A3 (en) * 1999-07-07 2003-01-15 Morgan Construction Company Tension control system and method for reducing front and tail end overfill of a continuously hot rolled product
SE546655C2 (en) * 2016-09-09 2025-01-07 Kocks Technik Gmbh & Co Kg Regulation of the operation of a rolling mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000002677A1 (en) * 1998-07-10 2000-01-20 Abb Ab A method and a device for controlling a rolling mill
US6519990B1 (en) 1998-07-10 2003-02-18 Abb Ab Method and a device for controlling a rolling mill
EP1066891A3 (en) * 1999-07-07 2003-01-15 Morgan Construction Company Tension control system and method for reducing front and tail end overfill of a continuously hot rolled product
SE546655C2 (en) * 2016-09-09 2025-01-07 Kocks Technik Gmbh & Co Kg Regulation of the operation of a rolling mill

Similar Documents

Publication Publication Date Title
DE3479790D1 (en) Rolling mill strip thickness controller
GB1549551A (en) Device for automatic adjustment of a roll gap in a mill stand
GB2009974A (en) Modified twin stand control system
GB1072866A (en) Rolling mill control apparatus
JPS53112253A (en) Controlling method for interstand tension in continuous rolling mill
KR840003047A (en) Automatic Plate Control
JPS56168906A (en) Method and apparatus for controlling breadth of steel sheet rolled by rolling mill
GB898613A (en) Automatic control system for continuous strip mill
GB1450958A (en) Method of shape control for tandem rolling mill
GB1449665A (en) Rolling mill
EP0662869A1 (en) Rolling mill with a device for controlling the rotational speed of the rolls
GB885784A (en) Improvements in or relating to rolling mills
GB1501627A (en) Method of operating a rolling mill
JPS5561307A (en) Controlling method for sheet breadth in hot strip mill
JPS56139210A (en) Controlling method for strip thickness in rolling mill
JPS56117815A (en) Method and apparatus for controlling sheet breadth in hot rolling mill
JPS5680311A (en) Controlling method for rolling mill
JPS544856A (en) Method and apparatus for controlling looper
SU607615A1 (en) Rolling mill stand roll speed control system
Shibahara et al. Automatic width control system at roughing train in hot strip mill
JPS53144450A (en) Method of and apparatus for controlling timing of rolling mill
JPS55122616A (en) Automatic plate breadth control method in cold roll tandem mill
JPS55165210A (en) Rolling apparatus
JPS57103706A (en) Method for decreasing plate crown
JPS56114508A (en) Controlling method for rolling mill

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)