WO2000059650A1 - Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard - Google Patents

Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard Download PDF

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Publication number
WO2000059650A1
WO2000059650A1 PCT/IT1999/000082 IT9900082W WO0059650A1 WO 2000059650 A1 WO2000059650 A1 WO 2000059650A1 IT 9900082 W IT9900082 W IT 9900082W WO 0059650 A1 WO0059650 A1 WO 0059650A1
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WO
WIPO (PCT)
Prior art keywords
strip
coiling
fact
uncoiling
per
Prior art date
Application number
PCT/IT1999/000082
Other languages
English (en)
Inventor
Giovanni Arvedi
Original Assignee
Giovanni Arvedi
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 Giovanni Arvedi filed Critical Giovanni Arvedi
Priority to DE69909332T priority Critical patent/DE69909332T2/de
Priority to EP99917048A priority patent/EP1196256B1/fr
Priority to AT99917048T priority patent/ATE244078T1/de
Priority to PCT/IT1999/000082 priority patent/WO2000059650A1/fr
Priority to AU35321/99A priority patent/AU3532199A/en
Publication of WO2000059650A1 publication Critical patent/WO2000059650A1/fr

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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
    • B21B1/26—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
    • B21B1/46—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
    • B21B1/463—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 continuous process, i.e. the cast not being cut before rolling
    • 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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/68—Furnace coilers; Hot coilers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0242—Flattening; Dressing; Flexing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0252—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with application of tension

Definitions

  • the present invention concerns an integrated continuous casting and in-line hot rolling process, as well as the relative plant, for the manufacture of ultrathin steel strip in gauges down to 0.6 mm with such characteristics that, for particular uses such as deep drawing for car body parts, the rolled product obtained may replace a cold rolled product.
  • a process and plant are known for the manufacture of a pre-strip from 6 to 15 mm thick starting from a thin steel slab less than 60 mm thick.
  • the process as per the present invention may be used for example downstream of this known process, expressly concerning a coiling and subsequent uncoiling system of the pre-strip 6- 15 mm thick, such as to make possible in the subsequent hot rolling step the manufacture of ultrathin gauge coils but with characteristics similar to those of a cold rolled product.
  • the use of temporary product coiling equipment before the hot finishing rolling mill is known, the purpose of which is to separate the low speed part connected with the continuous caster from the finishing mill which instead works at high speed, so as to form coils which can be used as a spare buffer.
  • a typical application is the so-called "coil box” developed by Selco and used both for traditional plants and for so-called mini-mills which use thin slab technology.
  • the coil box in substance contains a series of entry rolls for bending and inviting the flat product to coiling, as well as motorized rolls for giving the necessary rotation to the product for the formation of the coil which in any case occurs freely, without a central core on which to be coiled and without a box shell.
  • patent US 4.703.640 tries to solve these problems by providing a box and the possibility of using a traditional mandrel, and that patent DE 4013582 supplies a possible solution with two coilers, each boxed in a casing, positioned one above the other, but both solutions have problems of technological and technical nature.
  • problems of the first type are due to the presence of heads and tails necessarily colder than the central part of the strip, which cause difficulties in the subsequent rolling, especially in the case of ultrathin gauges, giving rise in particular to: cobbles due to the so-called "refusals" of the rolling stand to accept material the head of which, over a few centimeters, shows temperature differences of several tens of degrees; out-of-tolerances of the first and last section of the strip (several metres), particularly important in the manufacture of ultrathin hot coils which can replace cold rolled ones in certain applications; and - incorrect positioning or "tail climping" of the tail of the material with consequent damage of the same material and the working rolls.
  • the strip tail being coiled which corresponds to the leading edge in the subsequent rolling is subjected to a cooling that can reach about 100°C, in this way making the rolling of strips of any gauge, thin or ultrathin (> or ⁇ 1 mm) problematical.
  • the particular positioning of the coilers, placed one above the other makes maintenance of the lower one difficult, above all in terms of time, some days being needed to disassemble the upper coiler in order to be able to have access to the lower one.
  • One of the aims of the present invention is therefore to provide a process for the manufacture of ultrathin gauge hot rolled coils with cold rolled characteristics which do not present the above-mentioned problems of the prior art; this process includes the operating steps listed in claim 1, providing therefore a pre-strip coiling and uncoiling step between the roughing and finishing rolling, followed by plastic stretching of the material which facilitates the elimination of scale in a subsequent descaling step. Additional operating steps, preferred or optional, are listed in the claims dependent on this.
  • the invention also includes a plant adapted to carry out the above- mentioned process.
  • Figure 1 is a schematic view of a part according to the present invention of a plant for the manufacture of ultrathin hot rolled coils with cold rolled characteristics, in a section between the roughing and possible heating step, downstream of the continuous caster, and the finishing rolling step;
  • Figure la is a schematic, perspective view of a complete plant including the part of Fig. 1;
  • Figure lb is a schematic view of a possible construction example with two casting lines and one finishing line;
  • Figures lc and Id show sectional views of the coiling/uncoiling device as per the invention, respectively in the coiling and uncoiling step;
  • Figures 2 and 2a show a section of the pre-strip with adherent and rolled-in scale, respectively before and after plastic stretching of the pre-strip provided by the process of the present invention
  • Figure 3 shows a schematic view, in cross section, of a possible mandrel embodiment to be used for the intermediate coiling/uncoiling coiler provided in the plant according to the present invention
  • Figure 4 shows a front view of the mandrel of figure 3, with the central body assembled by interlocking with the two side segments;
  • Figure 5 shows a sectional view taken along the line V-V of figure 4.
  • the integrated continuous casting and in-line hot rolling process of the present invention for the manufacture of ultrathin coils includes in sequence, between the initial thickness reduction step, partially with liquid core, and the hot finishing rolling, a coiling and subsequent uncoiling step of the pre-strip with a gauge of 6-15 mm, so that it may have the desired characteristics of constant profile and temperature both transversally (between centre and edges) and longitudinally (between head and tail, passing through the centre).
  • a plastic stretching step follows immediately, which facilitates the elimination of scale in the subsequent descaling step, in this way making it possible in the subsequent hot rolling step to manufacture ultrathin coils in gauges down to 0.6 mm, which, for certain applications, may replace cold rolled ones.
  • the pre-strip 10, downstream of the continuous caster 7 with simultaneous thickness reduction (not represented) and possible subsequent roughing 8, is subjected to coiling/uncoiling in at least one coiler 11 provided by a mandrel 20 which will be better described hereinafter with reference to figures 3-5.
  • a plastic stretching device 12 Downstream of the coiler 11, or more than one coiler placed horizontally on the same line, a plastic stretching device 12 is provided, composed of a battery of not less than three rolls (upper and lower) 18, such as to perform a stretching of the material.
  • the coiling/uncoiling device may preferably include auxiliary equipment to favour the entry or exit of the pre-strip in correspondence with the openings of the box casing, parallel to the pass-line, so as not to leave the final part of the pre-strip outside the casing.
  • the coiling device 11 includes, inside an insulated casing 31, a non-expandable fixed mandrel 20 presenting on its periphery a pocket 21 for inserting the head.
  • Wrapper rolls 33, 33' and 33" are also provided, represented in number of three in Figures lc and Id, being mounted on an oscillating arm and pushed inwards so as to be in contact with the outer layer of strip coiled both in complete coiling conditions and therefore at the maximum coil diameter, and at the start of coiling, a condition in which these wrapper rolls are practically in contact with the central mandrel 20.
  • the casing 11 presents two axial peripheral openings 34 and 35, respectively for the entry of the pre-strip 10 to be coiled (Fig. lc) and its exit when uncoiling (Fig. Id).
  • the two openings 34 and 35 are preferably defined and included between two respective pairs of rolls for favouring the passage of the pre-strip from outside inwards and vice versa.
  • Suitable means of control cause rotation of a deviating element 36, pivoting on the roller table 1 , until it is directed towards the opening 34 so as to invite the pre-strip 10 to enter the device 11 and, pushed by the wrapper rolls 33, 33', 33", to enter, inserting itself into pocket 21, and be held by the mandrel 20 which, rotating anti-clockwise, as shown in Figure lc, determines coiling on itself.
  • an element 37 also having an end normally outside the opening, in a retracted position, can be caused to extend until it inserts this end into the opening so as to form the invitation to the tail of the pre-strip 10 to come out at the start of the uncoiling step, as shown in Fig. Id, with the mandrel 20 rotating clockwise.
  • the deviating or coiling invitation element 36 as also the extendable and retractable element 37 for uncoiling the pre-strip 10, may of course be made in any other equivalent way suitable for this purpose.
  • the device 11 is provided movable in a parallel direction to its coiling axis along guide tracks 38 represented in cross-section in Figs, lc and Id, on which it can be blocked in fixed coiling and uncoiling positions by means of blocking devices 39.
  • the moving of device 11 may occur both for maintenance reasons and above all for transferring the coil into an uncoiling position different from the coiling one so as to allow various casting and/or roughing lines to be connected with a single heating and finishing line downstream.
  • the above-mentioned plastic bending is achieved preferably by also providing a relative penetration movement between the upper and lower rolls 18, such as to produce bending in plastic conditions which ensures a stretching of the material of more than 2%.
  • a control system for the position of the rolls 18 and the force impressed by the device 12 can be provided.
  • This control system preferably includes means able to keep stretching of the material within acceptable values ( ⁇ 0.7%) of length variation, by using a mass flow variation measuring device, obtained by means of two encoders connected to the entry and exit of the device 12.
  • the process of the present invention can also preferably include, upstream of the coiler 11 , a heating step obtained by means of an induction furnace 9, known already for example from patent EP 0415987. It is advantageous to introduce a regulation algorithm for the overheating of the pre-strip head and tail, and in particular temperature control which involves the induction furnace, the coiler and the descaler downstream, with the aim of making it industrially and continuously possible to have a pre-strip suitable for rolling in the austenitic, dual step or ferritic fields in order to obtain hot production of coils in gauges of ⁇ 1 mm with the qualities of cold rolled ones.
  • Figure 3 shows in particular the hollow central shaft 21 of the mandrel inside a central body 22 at the sides of which two steel segments 23 are provided, suitably lightened as is the central body 22.
  • the shaft 21 of the mandrel inside a central body 22 at the sides of which two steel segments 23 are provided, suitably lightened as is the central body 22.
  • FIG. 21 is cooled by water flowing through the axial hole 24 and externally presents a layer of insulation 25 which, limiting the passage of heat between the shaft and the central body 22, reduces to a minimum cooling of the first section of the strip being coiled and corresponding to the uncoiling tail in subsequent rolling.
  • Figures 4 and 5, above all the first of these, show a preferred embodiment, of interlocking fit, to join the central body 22 to the side segments 23 by means of shaped fasteners 26, 26', which engage thicknesses 27 inserted to allow assembly, without the need for tie-rods or bolts as required in traditional constructions. These were particularly unreliable because of possible breaking of the tie-rods every 2-3 months, considering that the necessary replacement of the broken tie- rods each time led to a downtime of about two days so as to allow cooling of the refractory material and its subsequent heating.
  • FIG. 3-5 not only has the purpose of increasing the reliability of the mandrel and its ease of execution, but also of making countertension possible between the coiler 11 and the downstream equipment, among which the first stand of the subsequent hot rolling mill. This also facilitates the so-called ferritic rolling in a hot rolling mill which, as stated before, can give the same results as those obtainable traditionally in the subsequent step in a cold rolling mill in order to produce coils of certain qualities, in particular in gauges of ⁇ 1 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne un procédé de laminage à chaud en ligne et de moulage continu intégré. Ce procédé comprend, en amont du laminage de finition à chaud, une étape de bobinage et de déroulage postérieur d'un pré-feuillard d'une épaisseur de 6 à 15 mm, suivie d'une étape d'étirage plastique pour faciliter l'élimination ultérieure de calamine, ce qui permet, à l'étape de laminage à chaud, la production de bobines de feuillards ultra-fins d'épaisseur inférieure à 0,6 mm qui peuvent remplacer, pour des applications spécifiques, des bandes laminées à froid. Cette invention a trait, de préférence, à une étape de chauffage par induction aux températures régulées, en amont de l'étape de bobinage/déroulage. L'usine qui réalise un tel procédé comprend pour bobiner/dérouler (11) le pré-feuillard (10) aux moins deux bobineuses pourvues d'un mandrin (20) de préférence avec un arbre (21) refroidi de manière interne isolé thermiquement vis-à-vis du corps central externe (22) auquel deux segments latéraux en acier (23) sont assemblés de manière avantageuse par un fixation d'enclenchement.
PCT/IT1999/000082 1999-04-07 1999-04-07 Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard WO2000059650A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69909332T DE69909332T2 (de) 1999-04-07 1999-04-07 Integriertes kontinuierliches stranggiess- und inline warmwalzverfahren sowie entsprechendes verfahren mit zwischenwickeln und abwickeln des vorstreifens
EP99917048A EP1196256B1 (fr) 1999-04-07 1999-04-07 Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard
AT99917048T ATE244078T1 (de) 1999-04-07 1999-04-07 Integriertes kontinuierliches stranggiess- und inline warmwalzverfahren sowie entsprechendes verfahren mit zwischenwickeln und abwickeln des vorstreifens
PCT/IT1999/000082 WO2000059650A1 (fr) 1999-04-07 1999-04-07 Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard
AU35321/99A AU3532199A (en) 1999-04-07 1999-04-07 Integrated continuous casting and in-line hot rolling process, as well as relative process with intermediate coiling and uncoiling of the pre-strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1999/000082 WO2000059650A1 (fr) 1999-04-07 1999-04-07 Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard

Publications (1)

Publication Number Publication Date
WO2000059650A1 true WO2000059650A1 (fr) 2000-10-12

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Application Number Title Priority Date Filing Date
PCT/IT1999/000082 WO2000059650A1 (fr) 1999-04-07 1999-04-07 Procede de laminage a chaud en ligne et de moulage continu integre, ainsi que procede correspondant avec bobinage intermediaire et deroulage du pre-feuillard

Country Status (5)

Country Link
EP (1) EP1196256B1 (fr)
AT (1) ATE244078T1 (fr)
AU (1) AU3532199A (fr)
DE (1) DE69909332T2 (fr)
WO (1) WO2000059650A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004026497A1 (fr) * 2002-09-19 2004-04-01 Giovanni Arvedi Process and production line for manufacturing ultrathin hot rolled strips based n the thin slab technique
EP1486267A1 (fr) * 2003-06-13 2004-12-15 Morgan Construction Company Méthode et dispositif pour l'interruption temporaire du passage d'un produit longue entre la partie en amont et la partie en aval d'un train de laminage
WO2006046266A1 (fr) * 2004-10-28 2006-05-04 Giovanni Arvedi Procede et ligne de production pour fabriquer des bandes d'acier ultraminces a chaud a l'aide de deux lignes de coulage pour une ligne de laminage sans fin unique
WO2006066552A1 (fr) * 2004-12-21 2006-06-29 Salzgitter Flachstahl Gmbh Dispositif pour la coulee horizontale d'acier en feuillards
WO2007072516A1 (fr) * 2005-12-22 2007-06-28 Giovanni Arvedi Procede et installation associee pour la production de bandes d'acier avec solution de continuite
DE102006013607A1 (de) * 2006-03-22 2007-11-15 Thyssenkrupp Steel Ag Fertigungslinie und Verfahren zum Erzeugen eines Magnesiumbandes
CN102747204A (zh) * 2012-07-13 2012-10-24 洛阳用功高频感应加热设备有限公司 一种薄钢带卷的感应加热装置及其热处理工艺方法
WO2015189742A1 (fr) 2014-06-11 2015-12-17 Arvedi Steel Engineering S.P.A. Buse de brame mince pour distribution de débits massiques élevés
EP2982453A1 (fr) * 2014-08-06 2016-02-10 Primetals Technologies Austria GmbH Réglage d'un profil de température ciblé sur une tête de bande et pied de bande devant la partie transversale d'une bande métallique
CN111842483A (zh) * 2020-07-02 2020-10-30 武汉科技大学 一种多模式节能型热轧带钢生产线及其使用方法
CN117165751A (zh) * 2023-08-08 2023-12-05 北京科技大学 一种改善微合金化高强钢冷轧基料全长组织均匀性方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057858A1 (de) 2006-12-08 2008-08-21 Vladimir Volchkov Verfahren zum Stranggießen (hoch)legierter oder/und hochgekohlter Stähle
DE102012017684A1 (de) 2012-08-31 2014-03-06 Vladimir Volchkov Verfahren zum Stranggießen der NE-Metalle
DE102012017682A1 (de) 2012-08-31 2014-03-06 Vladimir Volchkov Verfahren zum Stranggießen der NE-Metalle

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WO1993000179A1 (fr) * 1991-06-26 1993-01-07 Mannesmann Ag Four de stockage intermediaire monte en aval d'une installation de coulee de brames minces
WO1994029042A1 (fr) * 1993-06-04 1994-12-22 Giovanni Arvedi Unite d'interconnexion entre au moins une ligne d'acheminement pour le traitement a chaud de produits en acier aplatis, par exemple sous forme de minces plaques ou bandes, et un laminoir de finissage en aval
WO1997001402A1 (fr) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Procede et installation pour la fabrication d'une bande d'acier formable
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WO2004026497A1 (fr) * 2002-09-19 2004-04-01 Giovanni Arvedi Process and production line for manufacturing ultrathin hot rolled strips based n the thin slab technique
CN100335187C (zh) * 2002-09-19 2007-09-05 乔维尼·阿维迪 基于薄板技术来制造超薄热轧带材的方法和生产线
US7343961B2 (en) 2002-09-19 2008-03-18 Giovanni Arvedi Process and production line for manufacturing ultrathin hot rolled strips based on the thin slab technique
US7823431B2 (en) 2003-06-13 2010-11-02 Siemens Industry, Inc. Method and apparatus for temporarily interrupting the passage of long products between upstream and downstream paths in a rolling mill
EP1486267A1 (fr) * 2003-06-13 2004-12-15 Morgan Construction Company Méthode et dispositif pour l'interruption temporaire du passage d'un produit longue entre la partie en amont et la partie en aval d'un train de laminage
WO2006046266A1 (fr) * 2004-10-28 2006-05-04 Giovanni Arvedi Procede et ligne de production pour fabriquer des bandes d'acier ultraminces a chaud a l'aide de deux lignes de coulage pour une ligne de laminage sans fin unique
EP1657004A1 (fr) * 2004-10-28 2006-05-17 ARVEDI, Giovanni Procédé et ligne de production pour la fabrication de bandes ultrafines en acier présentant deux lignes de coulée pour une seule ligne de laminage en continu
KR101230371B1 (ko) 2004-10-28 2013-02-06 지오반니 아르베디 단일 순환 압연 라인을 위해 2개의 주조 라인을 구비한극박 핫 스틸 스트립을 위한 제조 라인 및 그 처리
AU2005298223B2 (en) * 2004-10-28 2010-11-11 Giovanni Arvedi Process and production line for manufacturing hot ultrathin steel strips with two casting lines for a single endless rolling line
US8047263B2 (en) 2004-12-21 2011-11-01 Salzgitter Flachstahl Gmbh Device for the horizontal continuous strip casting of steel
WO2006066552A1 (fr) * 2004-12-21 2006-06-29 Salzgitter Flachstahl Gmbh Dispositif pour la coulee horizontale d'acier en feuillards
WO2007072516A1 (fr) * 2005-12-22 2007-06-28 Giovanni Arvedi Procede et installation associee pour la production de bandes d'acier avec solution de continuite
DE102006013607B4 (de) * 2006-03-22 2008-08-14 Thyssenkrupp Steel Ag Verfahren zum Erzeugen eines Magnesiumbands
DE102006013607A1 (de) * 2006-03-22 2007-11-15 Thyssenkrupp Steel Ag Fertigungslinie und Verfahren zum Erzeugen eines Magnesiumbandes
CN102747204A (zh) * 2012-07-13 2012-10-24 洛阳用功高频感应加热设备有限公司 一种薄钢带卷的感应加热装置及其热处理工艺方法
CN102747204B (zh) * 2012-07-13 2013-11-27 洛阳用功高频感应加热设备有限公司 一种薄钢带卷的感应加热装置及其热处理工艺方法
WO2015189742A1 (fr) 2014-06-11 2015-12-17 Arvedi Steel Engineering S.P.A. Buse de brame mince pour distribution de débits massiques élevés
US10569326B2 (en) 2014-06-11 2020-02-25 Arvedi Steel Engineering S.P.A. Thin slab nozzle for distributing high mass flow rates
WO2016020134A1 (fr) 2014-08-06 2016-02-11 Primetals Technologies Austria GmbH Réglage d'un profil de température ciblé sur une tête de bande et un pied de bande avant le découpage transversal d'une bande métallique
CN106536074A (zh) * 2014-08-06 2017-03-22 首要金属科技奥地利有限责任公司 在横切金属带之前调整带头部和带基部处的目标温度分布
RU2679321C2 (ru) * 2014-08-06 2019-02-07 Прайметалз Текнолоджиз Аустриа ГмбХ Установка целевого температурного профиля в головной части полосы и концевой части полосы перед поперечным разделением металлической полосы
EP2982453A1 (fr) * 2014-08-06 2016-02-10 Primetals Technologies Austria GmbH Réglage d'un profil de température ciblé sur une tête de bande et pied de bande devant la partie transversale d'une bande métallique
US10870139B2 (en) 2014-08-06 2020-12-22 Primetals Technologies Austria GmbH Adjusting a targeted temperature profile at the strip head and strip base prior to cross-cutting a metal strip
CN111842483A (zh) * 2020-07-02 2020-10-30 武汉科技大学 一种多模式节能型热轧带钢生产线及其使用方法
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EP1196256B1 (fr) 2003-07-02
DE69909332D1 (de) 2003-08-07
EP1196256A1 (fr) 2002-04-17

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