EP0234739A1 - Fabrication de ruban métallique - Google Patents

Fabrication de ruban métallique Download PDF

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Publication number
EP0234739A1
EP0234739A1 EP87300677A EP87300677A EP0234739A1 EP 0234739 A1 EP0234739 A1 EP 0234739A1 EP 87300677 A EP87300677 A EP 87300677A EP 87300677 A EP87300677 A EP 87300677A EP 0234739 A1 EP0234739 A1 EP 0234739A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
mill
spreading
width
stand
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.)
Granted
Application number
EP87300677A
Other languages
German (de)
English (en)
Other versions
EP0234739B1 (fr
Inventor
Kenneth Thomas Lawson
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.)
Davy Mckee Sheffield Ltd
Original Assignee
Davy Mckee Sheffield Ltd
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 Davy Mckee Sheffield Ltd filed Critical Davy Mckee Sheffield Ltd
Priority to AT87300677T priority Critical patent/ATE57481T1/de
Publication of EP0234739A1 publication Critical patent/EP0234739A1/fr
Application granted granted Critical
Publication of EP0234739B1 publication Critical patent/EP0234739B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/466—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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling

Definitions

  • a continuously cast metal workpiece is hot rolled between the rolls of a spreading mill to roll a groove in each of a pair of opposite faces of the workpiece and thereafter the workpiece is rolled in a multi-stand finishing mill to reduce the thickness and increase the width of the workpiece to form strip of a predetermined gauge and width.
  • the required change in width is brought about by first forming the grooves in the opposite faces of the workpiece, which causes the width of the workpiece to be increased and thereafter by rolling the grooves out of the workpiece in the finishing mill to increase the width of the workpiece further.
  • the workpiece may be passed directly from the continuous caster to the multi-stand spreading mill but it is likely to be more convenient to coil the output from the continuous caster and, at a later stage, to re-heat the coil, uncoil it and pass the workpiece between the stands of the multi-stand spreading mill.
  • the workpiece leaving the spreading mill may be passed directly into the finishing mill but it is likely to be more convenient if the workpiece leaving the spreading mill is coiled and subsequently, after being re-heated if necessary, it is uncoiled into the finishing mill.
  • Thin metal slabs are cast in a continuous casting machine 1.
  • the thin slab 3 passes through the stands of a multi-stand spreading mill 5 where the width of the slab is increased and, on leaving the spreading mill, the slab is rolled to strip 7 of the required gauge and of still further increased width in a finishing mill 9.
  • the uncoiler 15 carries a coil of metal slab 3 previously produced in one of the continuous casters.
  • the coil is uncoiled and passed into the spreading mill 5, shown as having five two-roll stands.
  • the pair of rolls 3A constituting the first stand of the spreading mill are each provided with a collar and the collars are shaped to form respective grooves 17 in the opposite faces of the slab.
  • the provision of the grooves 17 cause the width of the slab to be increased slightly.
  • the grooves 17 are progressively widened and thereby increase the width of the slab.
  • reference 19 indicates the section of the grooved slab as it leaves the last stand of the spreading mill.
  • the slab then either passes directly into the stands of the multi-stand finishing mill 9 where first the thickened edge portions of the slab are reduced in thickness thereby widening the slab still further and thereafter the slab is progressively reduced to the required gauge.
  • the grooved slab leaving the spreading mill 5 is coiled in a coiler 21 and subsequently re-heated in a furnace 23 and uncoiled by an uncoiler 25 into the finishing mill 9.
  • a typical example of the process of the invention is for the or each continuous casting machine 1 to produce a workpiece of 50 mm thickness and 1000 mm width.
  • This workpiece is passed through the spreading mill and, when it leaves the spreading mill, it is still 50 mm thick at the edges and reduced to 25 mm at its center.
  • the workpiece is reduced to a gauge (thickness) of 2 mm and its width is 1150 mm.
  • the workpieces as cast in the continuous casting machines may have a width of between 600 -1900 mm and a thickness of between 30 - 75 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Bipolar Transistors (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP87300677A 1986-01-29 1987-01-27 Fabrication de ruban métallique Expired - Lifetime EP0234739B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87300677T ATE57481T1 (de) 1986-01-29 1987-01-27 Herstellung von metallband.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8602163 1986-01-29
GB868602163A GB8602163D0 (en) 1986-01-29 1986-01-29 Metal strip

Publications (2)

Publication Number Publication Date
EP0234739A1 true EP0234739A1 (fr) 1987-09-02
EP0234739B1 EP0234739B1 (fr) 1990-10-17

Family

ID=10592148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87300677A Expired - Lifetime EP0234739B1 (fr) 1986-01-29 1987-01-27 Fabrication de ruban métallique

Country Status (5)

Country Link
EP (1) EP0234739B1 (fr)
AT (1) ATE57481T1 (fr)
DE (1) DE3765553D1 (fr)
FI (1) FI82619C (fr)
GB (1) GB8602163D0 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056473A1 (de) * 1969-11-19 1971-05-27 Boehler & Co Ag Geb Vorrichtung zur Herstellung von Strängen
EP0164265A2 (fr) * 1984-06-08 1985-12-11 DAVY McKEE (SHEFFIELD) LIMITED Procédé pour laminer une brame métallique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056473A1 (de) * 1969-11-19 1971-05-27 Boehler & Co Ag Geb Vorrichtung zur Herstellung von Strängen
EP0164265A2 (fr) * 1984-06-08 1985-12-11 DAVY McKEE (SHEFFIELD) LIMITED Procédé pour laminer une brame métallique

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 4, no. 154 (M-38)[636], 28th October 1980; & JP - A - 55 106 601 (NIPPON KOKAN) 15-08-1980 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 47 (M-196)[1192], 24th February 1983; & JP - A - 57 195 509 (SUMITOMO KINZOKU KOGYO) 01-12-1982 *
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 64 (M-285)[1501], 27th March 1984; & JP - A - 58 215 201 (KAWASAKI SEITETSU) 14-12-1983 *

Also Published As

Publication number Publication date
FI870364A (fi) 1987-07-30
EP0234739B1 (fr) 1990-10-17
GB8602163D0 (en) 1986-03-05
FI82619B (fi) 1990-12-31
FI870364A0 (fi) 1987-01-28
DE3765553D1 (de) 1990-11-22
ATE57481T1 (de) 1990-11-15
FI82619C (fi) 1991-04-10

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