EP1525060B1 - Procede et dispositif de fabrication en continu de bandes metalliques - Google Patents

Procede et dispositif de fabrication en continu de bandes metalliques Download PDF

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Publication number
EP1525060B1
EP1525060B1 EP03766145A EP03766145A EP1525060B1 EP 1525060 B1 EP1525060 B1 EP 1525060B1 EP 03766145 A EP03766145 A EP 03766145A EP 03766145 A EP03766145 A EP 03766145A EP 1525060 B1 EP1525060 B1 EP 1525060B1
Authority
EP
European Patent Office
Prior art keywords
strip
equipment
rolling
chemical treatment
heating
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.)
Expired - Lifetime
Application number
EP03766145A
Other languages
German (de)
English (en)
Other versions
EP1525060A1 (fr
Inventor
Withold Richert
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1525060A1 publication Critical patent/EP1525060A1/fr
Application granted granted Critical
Publication of EP1525060B1 publication Critical patent/EP1525060B1/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
    • 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
    • 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
    • B21B15/0035—Forging or pressing devices as units
    • B21B15/005—Lubricating, cooling or heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • 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
    • B21B45/004—Heating the product
    • 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
    • B21B45/04—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 de-scaling, e.g. by brushing
    • B21B45/06—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 de-scaling, e.g. by brushing of strip material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Definitions

  • the invention relates to a method for continuously producing a metallic, preferably cold-rolled strip, in particular a stainless steel strip, wherein the strip to be produced is guided in a conveying direction through a device in which the strip is subjected to a rolling process, a heating and a chemical treatment. Furthermore, the invention relates to a suitable system.
  • a metal strip passes through a production device in which various processes are carried out on the strip.
  • the strip is reduced in a rolling process in its thickness.
  • a heat treatment can be followed, which gives the band special material properties.
  • the tape must have a scale-free surface, which is why it passes through a pickling line in which the scale is removed by means of a chemical treatment.
  • the hot-rolled steel strip For further processing - eg., by cold rolling, for a metallic coating or the direct processing into a final product - the hot-rolled steel strip must have a scale-free surface. Therefore, the scale formed during hot rolling and subsequent cooling must be removed completely. This is usually done by a pickling process, wherein the consisting of the various iron oxides (FeO, Fe 3 O 4 , Fe 2 O 3 ) or in stainless steels also chromium-rich iron oxides existing scale depending on the steel quality by means of various acids (eg., Hydrochloric acid, sulfuric acid , Nitric acid or mixed acid) is dissolved at elevated temperatures by chemical reaction with the acid.
  • various acids eg., Hydrochloric acid, sulfuric acid , Nitric acid or mixed acid
  • a method or a system of the generic type is known from DE 100 22 045 C1. There, it is disclosed that a strip is passed through a pickling device, wherein in front of and behind the pickling device a respective rolling unit is arranged. In the conveying direction of the belt behind the second roller unit, the belt passes through an annealing furnace and then a pickling tank in which the scale is removed from the surface of the belt. Before winding up the tape that has been completed so far, it can be finally finished in a temper rolling mill.
  • WO 00/37189 and WO 00/37190 disclose a device for producing a metal strip, in which the strip is first reduced in its thickness to a multi-stand rolling course. Subsequently, the tape enters an annealing furnace; in the further course, the strip is passed through a pickling device. Before the tape is wound up, a rolling operation can follow, but only a slight reduction of the thickness on the belt is required.
  • US 2001/0037667 A1 discloses a similar apparatus for producing a metal strip. Here, however, no heating of the band is provided. The strip is passed through a rolling mill only after descaling in a pickling line.
  • the rolling mill following facilities and in particular the annealing furnace and the pickling line, must be adjusted in their dimensions of the reduced by the rolling process typically 30 to 40% band thickness ; Since the strip is already thinner, but longer, the annealing furnace and the pickling line must be designed to be correspondingly long, which leads to high costs of the system.
  • the invention is therefore based on the object to provide a method and an associated system of the type mentioned, with which or with which it is possible to avoid the disadvantages mentioned, which in particular achieves a higher productivity and efficiency in the production of a strip to be Furthermore, the surface quality of the finished strip is to be improved.
  • the solution of this problem by the invention according to the method is characterized in that the rolling process is carried out only after the heating of the belt and after the chemical treatment.
  • This procedure ensures that the three process steps of rolling the strip to the desired thickness, carrying out a heat treatment of the strip by an annealing process and descaling the strip by means of pickling are carried out in the production plant, the above-mentioned disadvantages not being apparent Bandes of the original to the reduced, final thickness takes place only in the conveying direction after annealing and pickling, both the annealing furnace and the pickling line can be made smaller in their respective dimensions. Furthermore, said rolling process takes place only on a completely descaled strip surface, so that the roller wear remains low. Furthermore, the proposed procedure results in improved strip surface quality without the need for further measures.
  • the rolling process is preferably a tandem rolling process.
  • rolling process is to be understood here as meaning that the strip is substantially reduced in its thickness, preferably by at least 20%.
  • the chemical treatment of the strip is preferably a pickling process.
  • the device according to the invention for the continuous production of a metal, cold-rolled strip has a device for heating, i. H. in particular for annealing the strip, means for chemically treating the strip, and means for rolling the strip.
  • the device for rolling the strip in the conveying direction is arranged behind the device for heating the strip and the device for chemically treating the strip, wherein the device for rolling the strip has at least one tandem rolling train.
  • This consists of several rolling stands, which can be designed as a rolling mill of the type 6-high or as a rolling mill of the Z-high type. In addition to this rolling device no further device for the purpose of reducing the thickness of the tape is required.
  • a draft straightening unit can be arranged between the device for heating the strip (annealing furnace) and the device for chemically treating the strip (pickling line). Furthermore, a metal grain jet unit can be arranged between the annealing furnace and the pickling line.
  • a trimming unit may further be arranged to laterally trim the strip.
  • the device has at least one, preferably three band memory.
  • the described manufacturing device can also be operated as a combined hot and cold strip annealing and pickling line with integrated rolling train (tandem mill).
  • a degreasing device can additionally be arranged in the conveying direction before the device for heating the strip, in particular in front of the inlet strip store.
  • FIG. 1 An embodiment of the invention is shown.
  • the single figure shows schematically a device for producing a stainless steel strip.
  • a device 2 can be seen, on which a metal strip 1 (metal strand) is processed.
  • the tape 1 of the device 2 is supplied.
  • the belt 1 is unwound from an unwinding unit, not shown, and directed into the device 2.
  • a degreasing device 12 follows, in which the strip surface is cleaned.
  • the tape 1 enters a tape storage 9 (inlet storage), which is positioned below a device 3 for heating the strip 1 (annealing furnace).
  • About the tape storage 9 can be achieved that even with minor external disturbances in the tape feed a continuous run of the tape is achieved.
  • the strip 1 is subjected to a heat treatment.
  • Ansch manend it comes to a stretcher straightening unit 6, in which the band 1 is smoothed.
  • Downstream of the drafting straightening unit 6 is a metal-grain jet unit 7.
  • a device 4 for the chemical treatment of the belt 1 is arranged, namely a pickling line, in which the belt 1 is passed through tanks, which are filled with acid.
  • a pickling line in which the belt 1 is passed through tanks, which are filled with acid.
  • a tape storage 11 (buffer) is arranged below the pickling line 4. From this, the tape 1 runs in a Beklamyer 8, in which the sides of the tape 1 are cut. From the trimming unit 8, the belt 1 passes through a further belt store 10 (discharge storage) to the device 5 for rolling the belt 1.
  • This device 5 is designed as a tandem rolling mill. There are three consecutively arranged rolling stands 5a, 5b and 5c, in which the strip 1 is rolled and thereby reduced in thickness.
  • an outlet section 14 is arranged, which has a winding unit, not shown, with which the finished tape 1 can be wound.
  • the tandem rolling train 5 has three rolling stands 5a, 5b and 5c, which may be designed in the form of a multi-roll cold rolling mill, a 6-high rolling mill or a Z-high rolling mill. Due to the fact that the reduction in the thickness of the strip 1 takes place only in the only device 5 for rolling the strip 1 at the end of the device 2, the strip 1 has before the tandem rolling mill 5 still a relatively large thickness, namely the thickness at which the tape 1 enters the device 2, on. This has the consequence that the length of both the annealing furnace 3 and the pickling line 4 can be kept relatively low.
  • Both the annealing furnace 3 and the pickling line 4 can therefore be designed for the original thickness of the strip 1, with which the strip 1 enters the device 2.
  • a reduction in thickness can be made without prior annealing, resulting in a smaller maximum thickness reduction of a maximum of 30 to 40%.
  • the maximum thickness reduction of the belt 1 per pass through the device 2 depends only on the materials and the performance of the tandem rolling mill 5; no consideration has to be given to the unannealed tape.
  • a rolling stand of the tandem rolling train 5 can be designed so that the band 1 can be dressed during a final annealing.
  • the descaled and preferably already edged strip can - following the device 2 - without intermediate storage under constant tension continuously in a follow-up device (hot dip galvanizing, etc.) enter.
  • the finished tape can be wound behind the Nach Riverside Published alternately with two reels and divided with a pair of scissors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Manufacturing Of Electric Cables (AREA)

Claims (12)

  1. Procédé pour la fabrication en continu d'un feuillard métallique laminé à froid (1), en particulier d'un feuillard en acier spécial, dans lequel un feuillard métallique laminé à chaud est déroulé d'une unité de déroulement et le feuillard à finir (1) est mené en direction de transport (R) à travers un dispositif (2) dans lequel le feuillard (1) est soumis à un processus de laminage, à un échauffement et à un traitement chimique,
    caractérisé en ce que
    le processus de laminage est réalisé uniquement après l'échauffement du feuillard et après le traitement chimique.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    l'échauffement du feuillard (1), le traitement chimique du feuillard (1) et le processus de laminage sont réalisés dans cet ordre.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    le processus de laminage est un processus de laminage tandem.
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce que
    par le processus de laminage, le feuillard (1) est réduit sensiblement vis-à-vis de son épaisseur, de préférence d'au moins 20 %.
  5. Procédé selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le traitement chimique est un processus de décapage.
  6. Installation comportant une unité de déroulement et un dispositif (2) pour la fabrication en continu d'un feuillard métallique laminé à froid (1), en particulier d'un feuillard en acier spécial, en particulier pour mettre en oeuvre le procédé selon l'une des revendications 1 à 5, dans lequel un feuillard métallique laminé à chaud est déroulé de l'unité de déroulement et le feuillard à finir (1) traverse le dispositif (2) en direction de transport (R), et le dispositif (2) comprend un moyen (3) pour chauffer le feuillard (1), un moyen (4) pour le traitement chimique du feuillard (1) et un moyen (5) pour laminer le feuillard (1),
    caractérisée en ce que
    le moyen (5) pour laminer le feuillard (1) est agencé en direction de transport (R) derrière le moyen (3) pour chauffer le feuillard (1) et du moyen (4) pour le traitement chimique du feuillard (1), et le moyen (5) pour laminer le feuillard (2) comprend un train de laminoir tandem (5a, 5b, 5c).
  7. Installation selon la revendication 6,
    caractérisée en ce que
    les cages de laminoir (5a, 5b, 5c) sont réalisées sous la forme d'un laminoir à froid à plusieurs cylindres avec un agencement de cylindres dit "6-high" ou "Z-high".
  8. Installation selon la revendication 6 ou 7,
    caractérisée en ce que
    le moyen (4) pour le traitement chimique du feuillard (1) est un moyen de décapage.
  9. Installation selon l'une des revendications 6 à 8,
    caractérisée en ce que
    une unité d'étirage/dressage (6) est agencée entre le moyen (3) pour chauffer le feuillard (1) et le moyen (4) pour le traitement chimique du feuillard (1).
  10. Installation selon l'une des revendications 6 à 9,
    caractérisée en ce que
    une unité de projection de grains métalliques (7) est agencée entre le moyen (3) pour chauffer le feuillard (1) et le moyen (4) pour le traitement chimique du feuillard (1).
  11. Installation selon l'une des revendications 6 à 10,
    caractérisée en ce que
    une unité de rognage (8) est agencée en direction de transport (R) derrière le moyen (4) pour le traitement chimique du feuillard (1).
  12. Installation selon l'une des revendications 6 à 11,
    caractérisée en ce que
    un moyen de dégraissage (12) est agencé en direction de transport (R) avant le moyen (3) pour chauffer le feuillard (1).
EP03766145A 2002-07-26 2003-07-10 Procede et dispositif de fabrication en continu de bandes metalliques Expired - Lifetime EP1525060B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10234109 2002-07-26
DE10234109A DE10234109A1 (de) 2002-07-26 2002-07-26 Verfahren und Vorrichtung zur kontinuierlichen Herstellung metallischer Bänder
PCT/EP2003/007464 WO2004012878A1 (fr) 2002-07-26 2003-07-10 Procede et dispositif de fabrication en continu de bandes metalliques

Publications (2)

Publication Number Publication Date
EP1525060A1 EP1525060A1 (fr) 2005-04-27
EP1525060B1 true EP1525060B1 (fr) 2006-08-30

Family

ID=30010423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766145A Expired - Lifetime EP1525060B1 (fr) 2002-07-26 2003-07-10 Procede et dispositif de fabrication en continu de bandes metalliques

Country Status (15)

Country Link
US (1) US20060053617A1 (fr)
EP (1) EP1525060B1 (fr)
JP (1) JP2006502003A (fr)
KR (1) KR100990865B1 (fr)
CN (1) CN1671490A (fr)
AT (1) ATE337862T1 (fr)
AU (1) AU2003250025B2 (fr)
BR (1) BR0312756B1 (fr)
DE (2) DE10234109A1 (fr)
ES (1) ES2271651T3 (fr)
MX (1) MXPA05001083A (fr)
RU (1) RU2350415C2 (fr)
TW (1) TWI273929B (fr)
WO (1) WO2004012878A1 (fr)
ZA (1) ZA200500458B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI389747B (zh) * 2007-10-16 2013-03-21 Ihi Metaltech Co Ltd 鎂合金板之重捲設備
KR101103346B1 (ko) * 2009-07-14 2012-01-11 주식회사 동방플랜텍 냉연 강판의 프로세싱 라인장치
RU2499640C1 (ru) * 2012-06-14 2013-11-27 Открытое акционерное общество "Северсталь" (ОАО "Северсталь") Способ производства холоднокатаного проката для упаковочной ленты
RU2592609C1 (ru) * 2015-04-21 2016-07-27 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Способ производства холоднокатаного проката для упаковочной ленты
TWI625172B (zh) * 2016-09-19 2018-06-01 複合式冷軋線
WO2020067236A1 (fr) * 2018-09-28 2020-04-02 Ｊｆｅスチール株式会社 Procédé de production d'une tôle d'acier électromagnétique à grains orientés et équipement de laminage à froid

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05161901A (ja) * 1991-12-12 1993-06-29 Sumitomo Metal Ind Ltd 表面光沢の良好な冷延金属帯の製造方法
JPH07164008A (ja) * 1993-12-15 1995-06-27 Nkk Corp 酸洗−冷間圧延設備
JPH0824936A (ja) * 1994-07-15 1996-01-30 Nisshin Steel Co Ltd 金属帯の圧延方法および設備
JPH08246060A (ja) * 1995-03-10 1996-09-24 Kawasaki Steel Corp 缶用鋼板の製造方法
DE19532278B4 (de) * 1995-09-01 2006-07-27 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zur Herstellung eines kaltgewalzten Bandes in einem Durchlauf
FR2775205B1 (fr) * 1998-02-25 2000-03-24 Usinor Installation de fabrication de bandes d'acier inoxydable laminees a froid
DE69940282D1 (de) * 1998-12-18 2009-02-26 Outokumpu Oy Verfahren zur Herstellung von Edelstahlbändern
JP3460612B2 (ja) * 1999-03-04 2003-10-27 Ｊｆｅスチール株式会社 表面欠陥計を備えるプロセスライン
JP3695212B2 (ja) * 1999-03-30 2005-09-14 Ｊｆｅスチール株式会社 ステンレス鋼帯の冷間圧延方法
DE10022045C1 (de) * 2000-02-22 2001-07-19 Sundwig Gmbh Fertigungslinie und Verfahren zum kontinuierlichen Herstellen von kaltgewalzten metallischen Bändern
JP2001262232A (ja) * 2000-03-15 2001-09-26 Kawasaki Steel Corp ステンレス鋼帯の製造方法
FR2807957B1 (fr) * 2000-04-21 2002-08-02 Vai Clecim Procede et installation de laminage a froid
JP2001340905A (ja) * 2000-05-31 2001-12-11 Kawasaki Steel Corp 黒皮鋼板の圧延方法

Also Published As

Publication number Publication date
ATE337862T1 (de) 2006-09-15
ES2271651T3 (es) 2007-04-16
BR0312756B1 (pt) 2011-05-31
AU2003250025B2 (en) 2008-08-28
KR100990865B1 (ko) 2010-10-29
AU2003250025A1 (en) 2004-02-23
RU2005105314A (ru) 2005-07-20
DE50304876D1 (de) 2006-10-12
CN1671490A (zh) 2005-09-21
BR0312756A (pt) 2005-04-26
RU2350415C2 (ru) 2009-03-27
ZA200500458B (en) 2006-04-26
EP1525060A1 (fr) 2005-04-27
WO2004012878A1 (fr) 2004-02-12
TWI273929B (en) 2007-02-21
US20060053617A1 (en) 2006-03-16
KR20050021565A (ko) 2005-03-07
JP2006502003A (ja) 2006-01-19
DE10234109A1 (de) 2004-02-05
TW200414942A (en) 2004-08-16
MXPA05001083A (es) 2005-06-06

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