EP2437900A1 - Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage - Google Patents

Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage

Info

Publication number
EP2437900A1
EP2437900A1 EP10724421A EP10724421A EP2437900A1 EP 2437900 A1 EP2437900 A1 EP 2437900A1 EP 10724421 A EP10724421 A EP 10724421A EP 10724421 A EP10724421 A EP 10724421A EP 2437900 A1 EP2437900 A1 EP 2437900A1
Authority
EP
European Patent Office
Prior art keywords
rolling
stands
electric motors
train
mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10724421A
Other languages
German (de)
English (en)
Other versions
EP2437900B1 (fr
Inventor
Günther Winter
Norbert Moritz
Michael Diez
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP10724421.2A priority Critical patent/EP2437900B1/fr
Publication of EP2437900A1 publication Critical patent/EP2437900A1/fr
Application granted granted Critical
Publication of EP2437900B1 publication Critical patent/EP2437900B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/04—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills each stand having its own motor or motors
    • 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
    • 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
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • 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
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills

Definitions

  • the invention relates to a rolling train, in particular hot rolling, hot strip mill and / or finishing mill of a hot rolling mill, for processing rolling stock, in particular consisting of steel, aluminum, copper or titanium, with a plurality of rolling stands immediately adjacent in a rolling direction, wherein the rolling stands in each case at least two Have work rolls between which the rolling stock is machinable.
  • the invention relates to a cast-rolling compound plant, a method for operating a cast-rolling compound plant and to a method for increasing performance.
  • Metallic precursors such as slabs, hot or cold strip, sheet metal, tubes, etc., made of materials such as iron, steel, non-ferrous metals or other metallic materials are industrially subjected to various processing and refining steps in rolling mills. Typical processing steps are the rolling of cast slabs to hot strip or the down rolling of the hot strip to the thickness desired by the customer in a cold rolling train, for example a tandem mill.
  • Rolling mills conventionally occur as separate plants, which deliver their rolling stock, for example, from a separate continuous casting device, e.g.
  • hot-rolled strip can be produced in a continuous process, in particular endlessly
  • a cast-rolled composite plant is described, for example, in WO 96/01710 or in DE 694 08 595 T2 discloses.
  • the decisive component for the processing of rolling stock is a roll stand with which, for example, slabs can be rolled out in successive rolling passes to form a strip.
  • rolling speed racks are used in almost all rolling mills, in particular in hot and cold rolling mills.
  • the strips can be subjected to further processing steps.
  • the rolled-down strip is usually rolled up with the aid of a reel into so-called "coils.”
  • a direct coupling to a cold rolling plant and / or treatment line takes place.
  • the hot strip can be subjected to further intermediate steps, such as a temperature treatment, before it is fed to a cold rolling line.
  • a cold rolling mill At the end of a cold rolling mill is usually a take-up reel for receiving the rolled strip, in the continuous process if necessary combined with a pair of scissors.
  • JP 10-235416 proposes alternatively to integrate a compact superconducting electric motor into the interior of a roll of a rolling stand. Such a design entails mechanical problems, since the roll in question, with its thus reduced stability, will suffer deformations at high rolling forces.
  • the object of the present invention is to provide a rolling mill for processing rolling stock and a casting-rolling compound plant with such a rolling mill and an operating method for the cast-rolling composite plant and a method for increasing the performance of a rolling mill, which / which by means of his / her drive concept simplify the metallurgical and manufacturing processes during rolling, improve their energy efficiency and / or make it more flexible.
  • the object of the invention is achieved by a rolling mill with the features of claim 1.
  • the object of the invention is achieved by a cast-rolling composite plant according to claim 8, with respect to the operating method by a method according to claim 11 and in relation to the method of increasing performance by a method according to claim 12.
  • the rolling train comprises a plurality, in particular at least three or four, of roll stands immediately adjacent in the rolling direction, in particular in tandem operation.
  • the rolling train is either a roughing train and, with special advantage, a finishing mill of a hot rolling mill or hot strip rolling mill.
  • the rolling train comprises a plurality of laterally arranged electric motors with superconducting windings and at least three or at least four of the rolling stands each have at least one of the work rolls, preferably gearless, connected to the shaft of one of the electric motors.
  • rolling stock for example, slabs, hot strip, cold rolled strip, coarse or thin sheets, tubes, etc. come from iron, steel,
  • HTS motor An electric motor with electrically superconducting windings will be referred to as HTS motor in the following.
  • HTS motor both a machine whose rotor winding is superconducting and whose stator winding is normally conducting, and a machine, so-called fully superconducting machines, in which both the rotor and the stator winding is made using superconducting material to understand.
  • the rolling stands in a rolling mill due to the spatial extent of rolling stand, gear and electric motors must comply with a minimum distance, the minimum distance of the rolling stands is due to the Size of the scaffold stands, of possibly necessary intermediate scaffolding transport devices, limited by electric motors or gearbox.
  • the minimum distance of immediately adjacent rolling stands and thus, for example, the unwanted cooling of the rolling stock can be reduced by reduced thermal radiation.
  • HTS motors which have a much smaller size with the same power compared to conventional electric motors.
  • HTS motors which have a much smaller size with the same power compared to conventional electric motors.
  • the use of an HTS motor in a rolling mill entailed considerable energy savings potential (lower power loss) and, because of possible reduced unit spacings, also cost advantages. This is particularly advantageous in cast-rolled composite systems.
  • the rolling mills of the rolling train have at least two work rolls, between which the rolling stock is machinable, wherein at least one of the work rolls is driven by a HTS motor.
  • a rolling stand can be used both in hot and cold rolling mills.
  • a rolling mill in a cold rolling mill is used to roll down hot strip to the thickness desired by the customer.
  • the roll stand can be designed, for example, as a duo or as a quarto rolling stand or as a hexagonal roll stand.
  • the rolling mill is driven by a more compact HTS motor with the same power, the distances between the rolling stands can be selected smaller and the entire rolling train can be made shorter or more compact.
  • the inventors have recognized that use of an HTS motor in the rolling mill thus brings about considerable cost reductions as well as technological advantages as a result of reduced cooling of the continuous rolling stock.
  • An HTS engine has a more stable, stiff operating behavior (eg small rotor angle) and also responds faster to changes in reference variables compared to a conventional electric motor. This case occurs frequently during rolling. Compared to a conventional one
  • Electric motor is an HTS motor so faster regulated, which allows an improved and / or faster tapping behavior and / or improved ski control especially when its use in a rolling mill. This is particularly advantageous in heavy hot rolling reversing lines.
  • ski refers to unintentional deformation of the belt up or down, i.e. perpendicular to the direction of transport.
  • At least one of the work rolls is connected to the shaft of one of the electric motors in a gearless manner or by means of a gear which is reduced in size compared to a conventional electric drive.
  • the mechanical connection between the shaft of the HTS motor and the work roll of the rolling mill is carried out while dispensing with torque-converting mechanical intermediate elements (gear).
  • the shaft of the electric motor may be connected to the work roll via a common shaft or a spindle.
  • a spindle e.g. a double propeller shaft with two end Karden- understood hinges, which serves the torque transmission between the drive shaft of the motor and the work roll of the rolling stand.
  • the stand is configured to include a plurality of HTS motors, each of the work rolls preferably as described above directly or with miniaturized gearbox - mechanically connected to the shaft of one of the HTS motors Since the HTS motors have a smaller size compared to conventional electric motors with the same torque, eg due to a smaller stator diameter, the distance of the drive shafts can This also has a positive effect on the fact that at the same time the existing inclination of the spindles can be reduced or with constant spindle inclination the torque of the motors can be increased.With a reduction of the spindle inclination its wear, in particular in the card be lowered. As a third measure / variant, the spindle length can be shortened with the result of a better control behavior, because long spindles act like springs.
  • the electric motors are arranged directly next to one another or locally above one another (offset from each other). According to a further embodiment, these therefore advantageously have a common cooling system.
  • an HTS motor is not only advantageous in directly driven rolling stands, such as the aforementioned twin drives, but also in a rolling mill, which according to a further embodiment comprises two work rolls, which are mechanically coupled via a branching gear, said this drive side with the shaft of one of the electric motors is coupled.
  • the branching gear is a pinion gear, since this withstands high torques.
  • LTC Low Temperature Conducting
  • the superconducting material for the windings of the HTS motor can be selected such that it has a critical current density of more than 300 A / mm 2 at an operating temperature of 4.2 K has.
  • HTC high temperature conducting
  • YBCuO which has a higher transition temperature
  • the cooling-related expense of operating an HTS motor with windings made of HTC superconductor material is correspondingly lower.
  • an operating temperature between 10 and 40 K, preferably between 20 and 30 K, provided for the windings of the HTS motor.
  • metal oxide HTC superconductor material also has a high critical current density and a high critical field.
  • the HTS motors in particular those of adjacent rolling stands, have a common cooling system in a particularly advantageous manner.
  • the distance between the rolling mills causes undesirable changes in the state variables of the rolling stock.
  • the stand spacing of today's hot rolling mills in conventional construction is typically more than 5.0 m to 5.5 m.
  • the rolling stock may, for example, cool down too much between the individual rolling passes or form scales on the surface.
  • additional equipment such as an induction furnace or a descaling be compensated.
  • the use of such additional units and their integration in the rolling mill is expensive on the one hand and resource-intensive on the other hand.
  • the spacing of the rolling stands can be reduced by the use of drive motors with superconducting windings, whereby additional aggregates, e.g. for descaling or for heating the rolling stock, can be omitted.
  • At least two of the rolling stands are designed for a maximum rolling force of more than 1500 t, in particular more than 2000 t, more than 2500 t, more than 3000 t, more than 3500 t or more than 4000 t and these two rolling stands in this case have a distance of less than 5.0 m, preferably less than 4.5 m, less than 4.3 m, less than 4.0 m, less than 3.9 m in the rolling direction from each other , less than 3.7 m or less than 3.5 m.
  • the distance of the rolling stands is determined here as the distance of the axes of rotation of the work rolls of adjacent rolling stands in the rolling direction.
  • the rolling train has a control and / or regulating device designed, for example, as part of the process automation, in particular for controlling a heating device, a cooling section, a finishing stack and / or a speed of the rolling train, which is designed such that a result HTS engines are considered less expensive than conventional engines for reduced heat loss in the rolling stock.
  • a control and / or regulating device designed, for example, as part of the process automation, in particular for controlling a heating device, a cooling section, a finishing stack and / or a speed of the rolling train, which is designed such that a result HTS engines are considered less expensive than conventional engines for reduced heat loss in the rolling stock.
  • a control and / or regulating device designed, for example, as part of the process automation, in particular for controlling a heating device, a cooling section, a finishing stack and / or a speed of the rolling train, which is designed such that a result HTS engines are considered less expensive than conventional engines for reduced heat loss in the rolling stock.
  • This can be done by implementation in
  • the rolling train is part of a cast-rolling composite plant for the continuous production of hot strip.
  • the processing speed of a cast-rolling composite plant is determined by the speed of the caster. Consequently, the changes in state of the rolling stock occurring between the individual rolling passes, for example the cooling thereof, can not be compensated in a simple manner by increasing the rolling speed.
  • the inventors have recognized that a reduction in the distance of the rolling stands thus represents a very advantageous possibility of effectively avoiding intermediate units, such as, for example, descaling systems or induction furnaces, or making them less complicated.
  • a reduced distance of the rolling stands can be achieved by using HTS motors.
  • the heater is adjusted for heating power in consideration of a reduced heat loss in the rolling stock or strip due to the electric motors used ,
  • the cast-rolling composite plant can be carried out completely without such a heater.
  • the method-related object is achieved according to the invention by a method for operating a cast-rolled composite system, wherein rolled or strip material - preferably of steel - with a mass flow rate (m as mass per time) is transported through the mill train and where the heating equipped with a heating capacity (P) and / or operated according to:
  • MW stands for megawatts
  • h hours and t for (metric) tons.
  • the non-superconducting motor is replaced by a HTS motor which does not exceed the installation space limitation, ie an electric motor with superconducting windings which is designed in such a way that the maximum rolling moment in the rolling stand is increased compared to the existing rolling line. It is designed either superconducting only the rotor, or only the stator, or both.
  • FIG. 2 shows a schematic hot rolling mill in perspective
  • FIG. 3 shows a twin drive of a rolling stand in a schematic cross-sectional view
  • FIG. 4 shows a schematized tandem rolling line in a (sectional) plan view
  • FIG. 5 shows a cast-rolled composite system shown schematically
  • FIG. 6 shows a rolling force stand distance diagram
  • Figure 7 shows a rolling mill design with ski jacks, in a schematic longitudinal section.
  • a tandem cold rolling line 2 as shown in FIG. 1, is used to roll down hot strip 4 to the thickness desired by the customer.
  • the hot strip 4 rolled up to form a coil is fed to the tandem cold rolling mill 2 with the aid of an uncoiler 6 in a rolling direction W.
  • the thickness of the hot strip 4 is first determined by means of a measuring device 8, then the strip is rolled down in several successive rolling passes by means of roll stands 10 to the desired thickness.
  • Each of the rolling stands 10 has at least two work rolls 12 and two support rolls 14, wherein the rolling stock, in this case the hot strip 4, see between the work rolls 12 is processed.
  • the tape is rewound into a coil by means of a coiler 16.
  • a dividing shear 18 is available for the separation of the belt transversely to the rolling direction W.
  • the reel 16 is driven by a HTS motor 20.
  • the shaft of the HTS motor 20 is connected directly to the axis of the reel 16, i. no gear is used between the HTS motor 20 and the reel 16.
  • the work rolls 12 of the rolling stands 10 are either as twin drives, exemplified for the second rolling stand 10 in the rolling direction W, or using a branching gear, in this case a pinion gear 22, as exemplified for the third rolling stand 10 in the rolling direction W driven ,
  • a branching gear in this case a pinion gear 22
  • both work rolls 12 are each directly connected to the shaft of a respective separate HTS motor 20 (both denoted by 20).
  • the rewinding and reeling 16.6 and the rolling stands 10 are connected to a common control and / or regulating device 105, which will be discussed in detail later.
  • FIG. 2 shows a hot rolling mill 30 with which preheated slabs 32 are rolled into hot strip 4.
  • the slabs 32 are first rolled in a roughing train 34 and later with a consisting of several (here: seven) rolling stands 10 finished stagger 36 (finishing mill) to hot strip 4.
  • This is rolled up by means of a reel 16 to form a coil.
  • the individual rolling stands 10, which in each case have two working rolls 12 and two supporting rolls 14 of similar design to FIG. 1, are driven by HTS motors 20 both in the preliminary stretch 34 and in the finishing roll 36.
  • the rolled strip has a width of 0.6 m to 1.8 m, typically 0.8 m to 1.6 m.
  • the HTS motors 20 are arranged laterally with respect to the rolling direction W and laterally of the rolling stands.
  • FIG. 3 shows a highly schematic (vertical) cross-sectional view of a rolling stand 10 of the tandem cold rolling mill 2 of FIG. 1 or, more preferably, the hot rolling mill 30 of FIG. 2, whose working rolls 12 are provided with a
  • each of the work rolls 12 is connected with its shaft 23 via a spindle 24 to the motor shaft 25 of a HTS motor 20.
  • the connection between the shaft 23 of the work roll 12 and The spindle 24 and between the latter and the motor shaft 25 are each made with the aid of a cardan joint or by means of shafts with claws in comparison with conventional electric motors otherwise used in twin drives.
  • the spindle pitch ⁇ results from the offset between the shaft 23 of the work roll 12 and the motor shaft 25, which is bridged by the spindle 24.
  • the HTS motors 20 have a common cooling system 26, with which their superconducting windings are cooled.
  • the cooling system 26 is an insulated pipe system generally known from cryotechnology, in which a refrigerant circulates and in which a refrigeration unit 28 is integrated. This usually includes a reservoir for the refrigerant, which is, for example, liquid helium, neon, nitrogen or a mixture of these gases.
  • the refrigeration unit 28 also includes a compressor or a cold head for liquefying the coolant.
  • the circulation of the coolant in the cooling system 26 may be by means of a pump or driven by a thermosiphon effect.
  • FIG. 4 shows a schematic representation of four rolling stands 10 of a hot strip mill in a tandem arrangement of a hot rolling mill, as shown for example in FIG. 2 as finishing stack 36 of the hot rolling mill 30, seen in the top (transverse).
  • the rolling stands 10 are waiving other units, such as induction heaters or Entzu matterssanlagen in the rolling direction W immediately adjacent to each other, which is possible due to the compact size of their used for driving HTS motors 20.
  • the WaIz- scaffolding 10 can thereby reach a distance B from each other, which is not accessible in conventionally driven rolling stands 10. As distance B while the removal of Rotary axes D of the work rolls 12 defined in the rolling direction W.
  • the work rolls 12 are directly driven by the HTS motors 20, i. the shaft 23 of the work roll 12 and the motor shaft 25 of the HTS motors 20 form a common component.
  • the HTS motors 20 of the rolling stands 10 arranged directly next to one another have a common cooling system 26 with an integrated refrigeration unit 28.
  • FIG. 5 shows a continuous-belt casting / cogeneration unit 40 in which, starting from a casting platform 42 in a thin-slab casting device 44, thin slabs are continuously produced, which are continuously conveyed, i.e. continuously, by means of a roller table 45. without cutting, winding and intermediate storage, to a first high-rolling mill 46.
  • the motors of this rolling mill 46 are designed as HTS motors, the same applies to the drives of the following optional device 48 for cutting and / or cutting Transporting, which may include a pendulum scissors and a "plate pusher".
  • This device 48 is significant in particular in the event of production interruptions in the direction of production.
  • An optional crop shear can also have an HTS drive.
  • the drives of the rollers of the second rolling train 56 are designed as HTS engines, which just as in the rolls of the first rolling mill 46 brings special space advantages.
  • the invention has not only effects on the dimensioning of a rolling mill, but also on the control of the system and its components. Therefore, a control and / or regulating device 105 ( Figures 1, 2, 5) of the rolling train 2, 30, 46 and 56 or the cast-rolling composite system 40 for controlling a heater 52, a finishing stagger 56, a Cooling section 58 and / or a speed of the rolling train, designed such that a reduced as a result of the superconducting electric motors used compared with the use of conventional motors heat loss is taken into account.
  • FIG. 6 shows, in the hatched area 100, the preferred design of rolling trains, for example of finishing lines of a hot strip mill, wherein the distance B in the rolling direction of two rolling stands upwards and the maximum rolling force F which can be generated by the rolling stands is indicated to the right.
  • "Small installations” with a maximum rolling force of less than 1000 t (metric tons) are not considered in the example According to the invention, the stand spacing B is less than 5 m even with very large rolling forces (line 101) increasingly More and more space is needed for the drive systems and motors because they have to work against increasing forces in the roll gap, so that in the end the stand spacing increases.
  • the straight line 102 can be described by the following equation:
  • the distance B of the rolling stands is chosen to be smaller than the value for Bmax resulting from the formula for a certain rolling force F to be applied by the rolling stand:
  • Figure 7 shows an optional embodiment for further reduction of the stand spacing B, in which between two rolling stands 10 a loop lifter 110 is present as a transport device.
  • An actuating cylinder 112 performs essentially only a vertical or up and down movement to support the belt 4 and thus requires very little space.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

L'invention concerne un train de laminoir (2; 30; 56) pour le traitement de matière à laminer (4, 32), présentant au moins trois cages de laminoir (10) directement adjacentes dans la direction de laminage et entraînées par des moteurs électriques (20) munis d'enroulements supraconducteurs. On obtient ainsi des intervalles plus petits entre les cages de laminoir qu'avec des entraînements électriques classiques, de telle sorte que les pertes d'énergie lors du laminage sont réduites. Une installation combinée de coulée et de laminage (40), dont les cages de laminoir sont équipées dudit moteur électrique (20), est configurée et/ou mise en œuvre de manière efficiente en termes de puissance calorifique nécessaire.
EP10724421.2A 2009-06-04 2010-05-31 Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage Not-in-force EP2437900B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10724421.2A EP2437900B1 (fr) 2009-06-04 2010-05-31 Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09161954A EP2258491A1 (fr) 2009-06-04 2009-06-04 Outil de rotation pour une chaîne de laminage et procédé de fonctionnement d'une installation composite de coulée-laminage
EP10724421.2A EP2437900B1 (fr) 2009-06-04 2010-05-31 Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage
PCT/EP2010/057524 WO2010139659A1 (fr) 2009-06-04 2010-05-31 Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage

Publications (2)

Publication Number Publication Date
EP2437900A1 true EP2437900A1 (fr) 2012-04-11
EP2437900B1 EP2437900B1 (fr) 2014-06-25

Family

ID=41323423

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09161954A Withdrawn EP2258491A1 (fr) 2009-06-04 2009-06-04 Outil de rotation pour une chaîne de laminage et procédé de fonctionnement d'une installation composite de coulée-laminage
EP10724421.2A Not-in-force EP2437900B1 (fr) 2009-06-04 2010-05-31 Train de laminoir économe en énergie et procédé économe en énergie permettant de faire fonctionner une installation combinée de coulée et de laminage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09161954A Withdrawn EP2258491A1 (fr) 2009-06-04 2009-06-04 Outil de rotation pour une chaîne de laminage et procédé de fonctionnement d'une installation composite de coulée-laminage

Country Status (6)

Country Link
US (1) US9174255B2 (fr)
EP (2) EP2258491A1 (fr)
CN (1) CN102802825B (fr)
BR (1) BRPI1010788A2 (fr)
RU (1) RU2011153722A (fr)
WO (1) WO2010139659A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2710159B1 (fr) 2011-05-20 2018-11-07 Primetals Technologies Austria GmbH Procédé et dispositif de préparation de produits de laminage en acier avant le laminage à chaud

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EP2258491A1 (fr) 2009-06-04 2010-12-08 Siemens Aktiengesellschaft Outil de rotation pour une chaîne de laminage et procédé de fonctionnement d'une installation composite de coulée-laminage
DE102010063279A1 (de) * 2010-12-16 2012-06-21 Sms Siemag Ag Walzstraße zur Röhrenstahl- und Dünnbanderzeugung
CN103920709B (zh) * 2014-04-03 2015-12-30 青岛圣合钢管制品有限公司 一种连续式自动压轧机
DE102014208437A1 (de) * 2014-05-06 2015-11-12 Siemens Aktiengesellschaft Kühleinrichtung für wenigstens zwei zu kühlende Komponenten, Schienenfahrzeug und Verfahren zur Kühlung
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
DE102017214412A1 (de) * 2017-08-18 2019-02-21 Sms Group Gmbh Direktantrieb bei Rollen, Walzen und Winden in der Stahl/NE-Industrie
US20230056053A1 (en) * 2019-12-11 2023-02-23 Sms Group Gmbh Modular rolling train, particularly hot rolling train, preferably in conjunction with an upstream casting facility
CN112077146A (zh) * 2020-08-18 2020-12-15 上海双张新材料科技有限公司 一种高精度异型铜带连铸连轧的装置及方法
EP4019157A1 (fr) 2020-12-23 2022-06-29 Primetals Technologies Austria GmbH Installation de production destinée à la fabrication de produit de laminage et procédé de montage et de démontage de l'usine de production
CN114309072B (zh) * 2021-11-18 2023-11-03 中冶赛迪工程技术股份有限公司 一种板带无头轧制下摆剪后的层式事故处理方法及装置

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EP2710159B1 (fr) 2011-05-20 2018-11-07 Primetals Technologies Austria GmbH Procédé et dispositif de préparation de produits de laminage en acier avant le laminage à chaud

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Publication number Publication date
EP2437900B1 (fr) 2014-06-25
RU2011153722A (ru) 2013-07-20
WO2010139659A1 (fr) 2010-12-09
US9174255B2 (en) 2015-11-03
CN102802825A (zh) 2012-11-28
US20120073345A1 (en) 2012-03-29
CN102802825B (zh) 2015-02-04
EP2258491A1 (fr) 2010-12-08
EP2258491A8 (fr) 2011-03-16
BRPI1010788A2 (pt) 2016-03-29

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