EP2958687B1 - Verfahren zum walzen eines blechstreifens - Google Patents

Verfahren zum walzen eines blechstreifens Download PDF

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Publication number
EP2958687B1
EP2958687B1 EP13811412.9A EP13811412A EP2958687B1 EP 2958687 B1 EP2958687 B1 EP 2958687B1 EP 13811412 A EP13811412 A EP 13811412A EP 2958687 B1 EP2958687 B1 EP 2958687B1
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EP
European Patent Office
Prior art keywords
strip
rolling mill
accumulator
rolling
output
Prior art date
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Active
Application number
EP13811412.9A
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English (en)
French (fr)
Other versions
EP2958687A1 (de
Inventor
Francis Charre
Jean-Paul Faure
Yves Guillot
Stanislas Mauuary
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.)
Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Filing date
Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP13811412.9A priority Critical patent/EP2958687B1/de
Publication of EP2958687A1 publication Critical patent/EP2958687A1/de
Application granted granted Critical
Publication of EP2958687B1 publication Critical patent/EP2958687B1/de
Active 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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids
    • 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
    • B21B1/24—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 in a continuous or semi-continuous process
    • B21B1/28—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 in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
    • 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
    • B21B2001/221—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 by cold-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • 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
    • B21B2275/06—Product speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/08—Coiler speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters

Definitions

  • the present invention relates to a method of rolling a metal strip.
  • the metal strip rolling mills in particular cold-formed and capable of rolling strips mainly made of stainless steel, requires the use of a high-capacity mill (> 400,000 tons per year) such as a tandem mill.
  • the rolling is carried out continuously (i.e., the web is continuously moving) to limit the costly loss of time and material during the introduction and release of web (such as for a discontinuous mill.
  • upstream of the rolling mill the use of a welder makes it possible to connect successive tails and band heads together in a unwinding section made by at least one uncoiling machine Downstream of the rolling mill or at least at the end of a complete rolling line it is finally required to separate these strips to wind them into separate coils by means of at least one winder.
  • the surface condition of the web is a critical component of web quality through a complete rolling line, so frequent visual inspections are most often required.
  • Rolling plants such as those of the tandem type (adapted for carbon and stainless steel strips) are preferably equipped with double coils, placed at the downstream outlet of the rolling mill) and downstream of a shear for cutting the strip preferentially to the fly and separate it by forming disjoining bands to wind them alternately on preferentially two mandrels exerting on the belt upstream of the winding a specific traction to the conditions required for a good winding, a good bobbin behavior once output of the winding mandrel and the subsequent unwinding constraints on multiple lines of operation downstream of the operation rolling.
  • the strip tension required for the winding is generally different from that required by the rolling operation: the strip tension associated with the rolling is generally greater or even much greater than the strip tension necessary for the winding, during the cutting and the transfer of the roll.
  • the head of a belt to its winding machine traction is generally established or permitted only by means of a traction unit such as a nipper capable of establishing a lower pull than the desired web tension rolling mill output for good rolling conditions, which can induce a disruption of the strip thickness and a generation of final product out of tolerance to be downgraded and often not usable, which is very expensive especially in the case of production of lamination. 'stainless steel.
  • the mill roll speed at the output of the rolling mill must be reduced during operations downstream of the rolling mill outlet, especially during cutting of the strip (shearing, beginning of winding on a mandrel, introduction of paper tape between turns of coil in stainless steel production, inspection, etc.), which induces a significant loss of productivity and also a qualitative impact on the factors of the rolling process, which generate defects in the thickness and flatness of the outgoing band of the rolling and in general all degraded qualitative factors well known by the effect of transient regimes of variations in speed and / or low speed.
  • DE 198 43 382 shows a method of implementation of the installation comprising at least: - a rolling mill in which the strip is rolled continuously, - rolling agents brought into contact with rolls of the rolling mill and with the strip, - a unit of strip traction disposed at the output of the rolling mill, - a depollution module comprising at least one degreasing means is disposed between the output of the rolling mill and the traction unit, in order to eliminate from the strip the said residual agents at the output of the rolling mill a tape accumulator is disposed at the output of at least a part of the traction unit, said accumulator maintains a tape running speed at the output of said accumulator under a maximum threshold, in order to reduce said downstream speed; of the accumulator under a definite time.
  • the strip At the outlet of the rolling mill, the strip has a surface retention, residual rolling agents such as traces of oil and other elements of coolant of the rolls and tape used for the rolling process, as well as fats coming from various possible contributions. Due to the presence of oil, other grease or other on the strip, it can not be easily exerted on the strip at the output of the rolling mill, a significantly strong tensile stress, for good rolling conditions.
  • the traction being generated by a traction unit at the output of the rolling mill such as tensioning rollers and / or roller clamping means, these traction elements are necessarily coated by accumulation of oil, other grease or other residual , which inevitably reduces the coefficient of friction and adhesions necessary to exert traction on the band.
  • An object of the present invention is to propose a method of rolling a metal strip to high productivity, by guaranteeing an increased mastery of tape running characteristics independently of the operations made at the rolling output and especially from at least one traction unit downstream of a rolling mill to a final winding downstream of the unit traction.
  • the method according to the invention should in particular allow better productivity for a predominantly stainless type strip.
  • the strip has an increased adhesion and therefore a better controlled trajectory when it passes over deflection rollers and at the inlet of each of the traction units (9, 9 '), an accumulator (10) downstream of at least a portion (9) of the traction units (9, 9 ') and other installations downstream of the rolling mill.
  • Deviations, in particular lateral deflections, of strip paths are thus avoided, because an increased mastery of tape running characteristics is therefore achieved independently of the operations made at the rolling output and especially since at least the first traction unit (9 ) downstream of the rolling mill to a final winding (13, 14) downstream of the traction unit.
  • the traction unit (9, 9 ') may comprise only tensioning rollers of the moving web for exerting a majority tensile tension, in particular said unit possibly being able to comprise only a pinching means for exerting an auxiliary tension. minority or even nil.
  • the installation provides a control module for the degreasing unit that can be controlled by parameters of the installation and the physical properties of the moving strip, such as at least one lubrication rate imposed on the rolling mill (7) and a maximum band rolling factor guaranteed by the traction unit (9, 9 ').
  • This control system thus allows a more refined optimization of adjustment of the depollution module in order to achieve a more economical depollution in terms of the use of degreasing products or other depolluting agents while ensuring an optimal depollution (therefore environmentally desirable) to achieve better control of traction and trajectory of band and a higher productivity.
  • the installation comprises successively from its main inlet and upstream of the rolling mill, at least one uncoiler (1, 2), a welder (4), an accumulator (6), at least one traction unit (5, 5 ').
  • these coupled elements allow high speeds of travel upstream of the rolling mill, knowing that the invention makes it possible to increase the running speed of rolling with increased productivity, because of better control of the strip path downstream of the rolling mill. rolling mill.
  • the installation may comprise downstream of the traction unit (9, 9 ') at least one so-called APL type line (derived from “Annealing Pickling Line” in English, as well as other types underlying CAPL «Cold Annealing Pickling Line "is directly coupled in continuous strip travel or coupled via at least one coiler downstream of the traction unit to a CAPL line-entry uncoiler.
  • a direct coupling has a disadvantage of speed of scrolling, because line CAPL imposes tape running speeds much lower than those reached by the installation according to the invention.
  • this method allows inspection (11) and shearing (12) which are performed during the second step while the tape running speed is reduced.
  • the method according to the invention allows a paper sheet insertion on the tape also initiated during the second step while the tape speed is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Cleaning In General (AREA)
  • Replacement Of Web Rolls (AREA)
  • Control Of Metal Rolling (AREA)

Claims (2)

  1. Verfahren zum Betrieb einer Anlage, umfassend wenigstens:
    - ein Walzwerk (7), in dem das Band kontinuierlich durchlaufend gewalzt wird,
    - Walzmittel, die mit den Walzen des Walzwerks und mit dem Band in Kontakt gebracht werden,
    - eine Bandzugeinheit (9, 9'), die am Ausgang des Walzwerks angeordnet ist,
    - ein mindestens eine Entfettungseinrichtung umfassendes Dekontaminationsmodul (8), das zwischen dem Ausgang des Walzwerks und der Zugeinheit angeordnet ist, um am Ausgang des Walzwerks die restlichen Mittel vom Band zu entfernen,
    - einen Bandspeicher (10), der am Ausgang mindestens eines Teils (9) der Zugeinheit (9, 9') angeordnet ist, wobei der Speicher am Ausgang des Speichers eine Banddurchlaufgeschwindigkeit unter einer Höchstgrenze beibehält, um die Geschwindigkeit hinter dem Speicher für eine Dauer zu reduzieren, die ein Einfügen einer Papierbahn mittels eines hinter dem Ausgang des Bandspeichers (10) angeordneten Papierbahn-Einfügemoduls ermöglicht, und wobei das Band im Wesentlichen ein nichtoxidierbares Metall umfasst und wobei:
    - in einem ersten Schritt die Banddurchlaufgeschwindigkeit im Walzwerk (7) bis zum Eintritt des Bandes in den Speicher (10) hinter dem Walzwerk eine Höchstgeschwindigkeit wie 400 bis 600 m/min erreicht;
    - in einem zweiten kurzzeitigen Schritt der Speicher (10) einen Austritt des Bandes in Richtung mindestens einer Wickelmaschine (13, 14) mit einer Geschwindigkeit einleitet, die gegenüber derjenigen des ersten Schritts vermindert ist, wie 30 bis 60 oder gar 100 m/min;
    - in einem dritten Schritt nach der Laufzeit von kurzer Dauer die Wickelmaschine eine maximale Bandwickelgeschwindigkeit einleitet, wie mehr als 550 m/min oder gar 750 m/min,
    - das Einfügen der Papierbahn auf dem Band im zweiten Schritt eingeleitet wird.
  2. Verfahren nach Anspruch 1, wobei während des zweiten Schritts eine Prüfung (11) und ein Schneiden (12) erfolgen.
EP13811412.9A 2013-02-22 2013-12-10 Verfahren zum walzen eines blechstreifens Active EP2958687B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13811412.9A EP2958687B1 (de) 2013-02-22 2013-12-10 Verfahren zum walzen eines blechstreifens

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13290036.6A EP2769779A1 (de) 2013-02-22 2013-02-22 Anlage und Methode zum Walzen eines Metallstreifens
PCT/EP2013/076081 WO2014127864A1 (fr) 2013-02-22 2013-12-10 Installation et méthode de laminage d'une bande métallique
EP13811412.9A EP2958687B1 (de) 2013-02-22 2013-12-10 Verfahren zum walzen eines blechstreifens

Publications (2)

Publication Number Publication Date
EP2958687A1 EP2958687A1 (de) 2015-12-30
EP2958687B1 true EP2958687B1 (de) 2019-03-06

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP13290036.6A Withdrawn EP2769779A1 (de) 2013-02-22 2013-02-22 Anlage und Methode zum Walzen eines Metallstreifens
EP13811412.9A Active EP2958687B1 (de) 2013-02-22 2013-12-10 Verfahren zum walzen eines blechstreifens

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13290036.6A Withdrawn EP2769779A1 (de) 2013-02-22 2013-02-22 Anlage und Methode zum Walzen eines Metallstreifens

Country Status (7)

Country Link
US (1) US9573174B2 (de)
EP (2) EP2769779A1 (de)
CN (1) CN105008058B (de)
BR (1) BR112015019600B1 (de)
ES (1) ES2729567T3 (de)
TR (1) TR201905534T4 (de)
WO (1) WO2014127864A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160862A1 (it) * 2016-02-18 2017-08-18 Danieli Off Mecc Impianto combinato di saldatura e laminazione di nastri metallici
DE102019110271A1 (de) 2019-04-18 2020-01-02 Primetals Technologies Austria GmbH Kaltwalzwerk mit alternativer Zuführung eines Stahlbandes über zwei verschiedene Wege
EP4124398B1 (de) * 2021-07-27 2024-04-10 Primetals Technologies Austria GmbH Verfahren zur bestimmung mechanischer eigenschaften eines walzgutes mit hilfe eines hybriden modells
CN114161165A (zh) * 2021-11-30 2022-03-11 丹阳市龙鑫合金有限公司 一种用于合金带材的热处理系统及其处理方法
CN115417178A (zh) * 2022-08-13 2022-12-02 磐石建龙钢铁有限公司 一种带钢头部机器人视觉自动牵引系统及牵引方法
CN116037651A (zh) * 2022-12-17 2023-05-02 本钢板材股份有限公司 一种冷轧清洗联合机组及方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065818A5 (de) 1969-10-15 1971-08-06 Nisshin Steel Co Ltd
DE3825110A1 (de) 1988-07-23 1990-02-01 Roland Schnettler Verfahren zum einbringen von elektrostatisch aufgeladenem papier als zwichenschicht zwischen blechen, sowie vorrichtung zur durchfuehrung eines solchen verfahrens
FR2775205B1 (fr) 1998-02-25 2000-03-24 Usinor Installation de fabrication de bandes d'acier inoxydable laminees a froid
DE19843382A1 (de) * 1998-09-22 2000-03-23 Schloemann Siemag Ag Kontinuierliche Tandemstraße
ES2260953T3 (es) * 1998-12-18 2006-11-01 Outokumpu Stainless Ab Metodo para fabricacion de bandas y linea de tren de laminacion.
JP2003094107A (ja) 2001-09-21 2003-04-02 Hitachi Ltd 連続式酸洗冷間圧延設備とその操業方法
DE102004061939B3 (de) * 2004-12-22 2006-08-03 Siemens Ag Gießwalzanlage für ein Metallband, Erzeugungsverfahren für ein Metallband und Metallband selbst
CN101376212B (zh) 2007-08-29 2010-10-13 烨联钢铁股份有限公司 以白皮钢卷产制产品钢卷的冷轧连续生产线
PL2067541T3 (pl) * 2007-12-05 2012-08-31 Yieh United Steel Corp Sposób ciągłego wytwarzania stali walcowanej na zimno

Also Published As

Publication number Publication date
BR112015019600A2 (pt) 2017-07-18
EP2769779A1 (de) 2014-08-27
TR201905534T4 (tr) 2019-05-21
EP2958687A1 (de) 2015-12-30
CN105008058A (zh) 2015-10-28
US9573174B2 (en) 2017-02-21
WO2014127864A1 (fr) 2014-08-28
US20160016212A1 (en) 2016-01-21
BR112015019600B1 (pt) 2022-06-07
CN105008058B (zh) 2017-06-20
ES2729567T3 (es) 2019-11-04

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