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EP2379244B1 - Procédé et dispositif de décalaminage d'une bande de métal - Google Patents

Procédé et dispositif de décalaminage d'une bande de métal Download PDF

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Publication number
EP2379244B1
EP2379244B1 EP09799265.5A EP09799265A EP2379244B1 EP 2379244 B1 EP2379244 B1 EP 2379244B1 EP 09799265 A EP09799265 A EP 09799265A EP 2379244 B1 EP2379244 B1 EP 2379244B1
Authority
EP
European Patent Office
Prior art keywords
flat products
nozzles
train
edges
strip edges
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.)
Not-in-force
Application number
EP09799265.5A
Other languages
German (de)
English (en)
Other versions
EP2379244A2 (fr
Inventor
Hans-Jürgen Bender
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 Siemag 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 Siemag AG filed Critical SMS Siemag AG
Publication of EP2379244A2 publication Critical patent/EP2379244A2/fr
Application granted granted Critical
Publication of EP2379244B1 publication Critical patent/EP2379244B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21B45/08—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 hydraulically
    • 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
    • B21B1/224—Edge rolling of flat products
    • 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
    • B21B1/26—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 hot-rolling, e.g. Steckel hot 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
    • B21B1/30—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 non-continuous process
    • B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers

Definitions

  • the invention relates to a method for producing flat products made of steel from continuously cast slabs of large or medium thickness or thin strands, which are compressed and then undergo a roughing and a finishing train.
  • a process is known by rolling the thin strip of carbon steels or alloyed temper or temper steels in two stages with a break for intermediate cooling by reversing on the roller table to one or more pre-ribbons.
  • the Vorb be heated by the combined effect of the covers and the heater to a defined temperature over the length and width and rolled in the multi-stand finishing line in the two-phase area (austenite ferrite) to thin, high-strength finished tapes, which is due to the lying in the upper Austenit capable rolling temperature the first forming step in the roughing train at a total decrease of 40 to 70%, the continuous cast structure is converted into a rolling structure by complete recrystallization.
  • the transformation start temperature of the transition into the two-phase region is raised and, in order to lower the forming resistances, the conversion time is shortened.
  • the Vorband is uniform over its length and width by the combined effect of the closed covers and an inductive heating device to a targeted Temperature adjusted so that rolling takes place in the finishing mill for all stitches in the two-phase area.
  • the tinder scrubber is mounted in the rolling direction behind the roughing train and immediately before the finishing train and serves for descaling the surfaces, not the edges of the slabs.
  • a hot rolling method in which a compression device is provided for the lateral upsetting of the rolled strip in front of the roughing stand.
  • a descaling device is provided between the upsetting device and the roughing stand, by which the continuous casting slabs are descaled on their surfaces by water jets. Therefore, shielding plates are attached to the upsetting device on both side upsetting rollers to prevent the water of the descaling device from cooling the rolled strip at the sides.
  • the shield plates are attached to lateral guides, so that changes with a change in the bandwidth and the distance of the shielding plates to the rolled strip.
  • the EP 1 305 102 B1 describes a production process and a plant for the production of thin flat products with a scale scrubber for descaling the top and bottom a continuous casting slab.
  • the flat products are descaled once again at their strip edges after passing through the roughing train and before passing through the finishing train. Then they can be upset again.
  • At least one high-pressure water jet is directed onto the flat products at an angle of 60 ° to 90 ° relative to the lateral surface of the flat products, in particular at an angle of 75 °.
  • the Entzu mattersstation before the roughing water jets are preferably directed to the band edges of three superimposed nozzles.
  • the invention also relates to a rolling mill for producing flat steel products from continuously or substantially thick slabs of medium or thin strands with a first upsetting device, a roughing train and a finishing train.
  • the rolling train is characterized in that a first descaling device for descaling the strip edges of the flat products is arranged in front of the first stuffing device, that a first descaling device for descaling the strip edges of the flat products is arranged in front of the first stuffing device, that the first descaling device at both strip edges of the flat products each having a plurality of directed to the band edges nozzles, in particular three nozzles, and that the nozzles are attached to the side guides of the rolling train to the upsetting device facing the ends of the side guides and are width-adjustable together with the side guides.
  • the attachment of the nozzles to the side guides has the advantage that the distance of the nozzles to the band edge is always constant, provided that the side guides or rulers are always moved out to the band edges (which is always the case in practice).
  • the constant distance between the nozzles and the strip edge advantageously produces a constant force impulse of the water jet from the nozzles onto the strip edges and thus a uniform descaling effect.
  • the nozzles are attached to the rulers of the side guides and width adjustable together with the rulers.
  • a second upsetting device can be provided in front of the finishing train, and in front of this a second descaling device for descaling the strip edges of the flat products.
  • the nozzles radiate the fluid respectively at an angle of 60 ° to 90 °, based on the lateral surface of the flat products, in particular at an angle of 75 °, on the band edges of the flat products.
  • a rolling train for example, downstream of a casting machine for producing large or medium-sized continuous slabs, comprises a pair of scissors for dividing the cast strand into slabs, a heating or equalizing furnace for heating the cold or warm continuously cast slabs or for balancing the thin strands to rolling start temperature and before a compression device 1 (FIG. Fig. 2 ) for laterally compressing the flat products a Entzu concerningsvorrichung 2 ( Fig. 1 . 2 ) for descaling the lateral strip edges of the flat products, wherein the compression device 1 in turn is arranged in front of the roughing train.
  • the flat products or ribbons are conveyed via rollers 3.
  • At their two longitudinal edges of the flat products are guided by rulers 4, 5, depending on the width of the flat products at different positions. This requires that the two rulers 4, 5, are arranged symmetrically to the center in the direction of a double arrow A transversely to the rolling direction of the flat products slidably.
  • three spray nozzles 6a, 6b, 6c and 7a, 7b and 7c are arranged for spraying high-pressure water jets on the strip edges of the rolled strip. From each of the nozzles 6a, 6b, 6c, 7a, 7b and 7c, the water becomes conical blasted, covering the water jets to fully impact the side edges of the flat products and remove the scale.
  • a splash wall 8, 9 which is preferably fixed in position.
  • each flexible media chain 10 and 11 each having a high-pressure hose 12, 13 for supplying the water from a common supply line 14 inside.
  • the nozzles 6a, 6b, 6c and 7a, 7b and 7c are respectively integrated on both sides with spray bars 15, 16, which form the mechanically rigid end piece of the tubes 12, 13.
  • the spray bars 15, 16 are mounted on the rulers 4, 5 and movable with them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (8)

  1. Procédé pour la production de produits plats en acier à partir de brames que l'on obtient par coulée continue, de grande ou de moyenne épaisseur, ou bien à partir de minces produits d'extrusion, que l'on soumet à un refoulement et que l'on fait ensuite passer par un train ébaucheur et par un train finisseur, et les produits plats, avant le refoulement, sont soumis à un décapage le long de leurs arêtes de feuillard via un fluide mis sous pression élevée, en particulier via au moins un jet d'eau sous haute pression, le fluide, le long des deux arêtes de feuillard, étant projeté sur les arêtes de feuillard via respectivement plusieurs buses orientées en direction des arêtes de feuillard, caractérisé en ce que les buses sont appliquées contre les règles (4, 5) des guidages latéraux du laminoir contre les extrémités des guidages latéraux, orientées dans la direction du dispositif de refoulement, et sont réglées en ce qui concerne leur largeur conjointement avec les règles (4,5).
  2. Procédé selon la revendication 1, caractérisé en ce que les produits plats sont soumis à un décapage supplémentaire le long de leurs arêtes de feuillard, après leur passage par le train ébaucheur et avant leur passage par le train finisseur.
  3. Procédé selon l'une quelconque des revendications 1 et 2, caractérisé en ce que ledit au moins un jet d'eau sous pression est projeté sur les produits plats en formant un angle de 60° à 90° par rapport à la surface latérale des produits plats, en particulier en formant un angle de 75°.
  4. Laminoir pour la production de produits plats en acier à partir de brames que l'on obtient par coulée continue, de grande ou de moyenne épaisseur, ou bien à partir de minces produits d'extrusion, comprenant un dispositif de refoulement (1), un train ébaucheur et un train finisseur, caractérisé en ce qu'un premier dispositif de décapage (2) pour le décapage des arêtes de feuillard des produits plats est disposé avant le premier dispositif de refoulement (1), en ce que le premier dispositif de décapage (2) présente le long des deux arêtes de feuillard des produits plats respectivement plusieurs buses orientées en direction des arêtes de feuillard, en particulier trois buses (6a, 6b, 6c ; 7a, 7b, 7c) et en ce que les buses (6a, 6b, 6c ; 7a, 7b, 7c), le long des guidages latéraux du laminoir, sont appliquées contre les extrémités des guidages latéraux, tournées vers le dispositif de refoulement (1) et peuvent être réglées en ce qui concerne leur largeur conjointement avec les guidages latéraux.
  5. Laminoir selon la revendication 4, caractérisé en ce que les buses sont appliquées contre les règles (4, 5) des guidages latéraux et peuvent être réglées en ce qui concerne leur largeur conjointement avec les règles (4, 5).
  6. Laminoir selon la revendication 4 ou 5, caractérisé en ce qu'on prévoit un deuxième dispositif de refoulement avant le train finisseur et un deuxième dispositif de décapage pour le décapage des arêtes de feuillard des produits plats est disposé avant le dernier cité.
  7. Laminoir selon la revendication 6, caractérisé en ce que le deuxième dispositif de décapage, le long des deux arêtes de feuillard, présente respectivement au moins une buse orientée sur chacune des deux arêtes de feuillard des produits plats, à partir de laquelle on peut projeter un fluide, en particulier de l'eau sous pression élevée sur les arêtes de feuillard.
  8. Laminoir selon l'une quelconque des revendications 4 à 7, caractérisé en ce que le fluide peut être projeté sur les produits plats respectivement en formant un angle de 60° à 90° par rapport à la surface latérale des produits plats, en particulier en formant un angle de 75°, à partir des buses (6a, 6b, 6c ; 7a, 7b, 7c).
EP09799265.5A 2008-12-18 2009-12-17 Procédé et dispositif de décalaminage d'une bande de métal Not-in-force EP2379244B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008063547A DE102008063547A1 (de) 2008-12-18 2008-12-18 Verfahren und Vorrichtung zur Entzunderung eines Metallbandes
PCT/EP2009/009077 WO2010069574A2 (fr) 2008-12-18 2009-12-17 Procédé et dispositif de décalaminage d'une bande de métal

Publications (2)

Publication Number Publication Date
EP2379244A2 EP2379244A2 (fr) 2011-10-26
EP2379244B1 true EP2379244B1 (fr) 2013-12-04

Family

ID=42199247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09799265.5A Not-in-force EP2379244B1 (fr) 2008-12-18 2009-12-17 Procédé et dispositif de décalaminage d'une bande de métal

Country Status (9)

Country Link
US (1) US20110247382A1 (fr)
EP (1) EP2379244B1 (fr)
JP (1) JP2012512029A (fr)
KR (1) KR20110071135A (fr)
CN (1) CN102256719A (fr)
DE (1) DE102008063547A1 (fr)
RU (1) RU2481907C2 (fr)
UA (1) UA103065C2 (fr)
WO (1) WO2010069574A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103042055B (zh) * 2012-12-27 2015-06-10 攀钢集团西昌钢钒有限公司 热轧钢坯粗轧除鳞方法
DE102015204664A1 (de) * 2015-03-16 2016-09-22 Lechler Gmbh Flachstrahldüse und Verwendung einer Flachstrahldüse
CN113042553B (zh) * 2021-02-25 2023-02-17 首钢京唐钢铁联合有限责任公司 一种热轧的精除鳞装置及热轧生产线

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* Cited by examiner, † Cited by third party
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JPS60136807U (ja) * 1984-02-21 1985-09-11 日本鋼管株式会社 熱間圧延用スケ−ルブレ−カ
JPH03106510A (ja) * 1989-09-14 1991-05-07 Sumitomo Metal Ind Ltd 熱間圧延鋼板のスケール除去方法
JPH05177242A (ja) * 1992-01-06 1993-07-20 Nippon Steel Corp 熱間圧延鋼板の脱スケール装置
JPH0619908U (ja) * 1992-08-19 1994-03-15 住友金属工業株式会社 熱間圧延鋼材側端面のデスケーリング装置
IT1259487B (it) * 1992-08-26 1996-03-20 Danieli Off Mecc Procedimento per la produzione di lamiere sottili ed impianto di laminazione compatto adottante tale procedimento
ATE163370T1 (de) * 1993-05-17 1998-03-15 Danieli Off Mecc Produktionslinie zur herstellung von bändern und/oder blechen
JPH0747419A (ja) 1993-08-09 1995-02-21 Kawasaki Steel Corp 極低炭素鋼材の熱間圧延方法
JP3362076B2 (ja) * 1994-04-01 2003-01-07 川崎製鉄株式会社 鋼片の連続熱間圧延方法
JPH07284838A (ja) * 1994-04-12 1995-10-31 Nippon Steel Corp 鋼板の圧延方法
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JPH08197130A (ja) * 1995-01-24 1996-08-06 Sumitomo Metal Ind Ltd 熱間圧延鋼材のデスケーリング方法
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DE19613718C1 (de) * 1996-03-28 1997-10-23 Mannesmann Ag Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband
NL1007739C2 (nl) * 1997-12-08 1999-06-09 Hoogovens Staal Bv Werkwijze en inrichting voor het vervaardigen van een stalen band met hoge sterkte.
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CN100540165C (zh) * 2007-08-22 2009-09-16 马鞍山钢铁股份有限公司 一种薄板坯连铸连轧生产薄带钢卷方法

Also Published As

Publication number Publication date
WO2010069574A3 (fr) 2010-08-12
RU2011129648A (ru) 2013-01-27
WO2010069574A2 (fr) 2010-06-24
US20110247382A1 (en) 2011-10-13
KR20110071135A (ko) 2011-06-28
CN102256719A (zh) 2011-11-23
EP2379244A2 (fr) 2011-10-26
DE102008063547A1 (de) 2010-07-01
RU2481907C2 (ru) 2013-05-20
JP2012512029A (ja) 2012-05-31
UA103065C2 (uk) 2013-09-10

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