[go: up one dir, main page]

WO2023052500A1 - Système et procédé de production de produits laminés plats - Google Patents

Système et procédé de production de produits laminés plats Download PDF

Info

Publication number
WO2023052500A1
WO2023052500A1 PCT/EP2022/077112 EP2022077112W WO2023052500A1 WO 2023052500 A1 WO2023052500 A1 WO 2023052500A1 EP 2022077112 W EP2022077112 W EP 2022077112W WO 2023052500 A1 WO2023052500 A1 WO 2023052500A1
Authority
WO
WIPO (PCT)
Prior art keywords
thick
slabs
heating device
hot
plant
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.)
Ceased
Application number
PCT/EP2022/077112
Other languages
German (de)
English (en)
Inventor
Wolfgang Fuchs
Georg Padberg
Matthias Peters
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 Group GmbH
Original Assignee
SMS Group GmbH
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
Priority claimed from DE102022208767.4A external-priority patent/DE102022208767A1/de
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Priority to JP2024519577A priority Critical patent/JP2024533794A/ja
Priority to EP22799874.7A priority patent/EP4408595A1/fr
Priority to CN202280066516.9A priority patent/CN118043146A/zh
Priority to US18/695,875 priority patent/US20250129444A1/en
Publication of WO2023052500A1 publication Critical patent/WO2023052500A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B21B1/46—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
    • B21B1/466—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 non-continuous process, i.e. the cast being cut before 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
    • 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
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/04—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing in a continuous process
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/42—Induction heating
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B2001/028—Slabs
    • 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
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/004—Transverse moving
    • 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

Definitions

  • the present invention relates to a system and a method for producing flat rolled products from thick cast steel and/or non-ferrous metal slabs and, in a further aspect, to the use of at least one electric heating device arranged upstream of a hot rolling mill in the direction of transport, in particular an electric heating device for direct hot use, for Heating thick slabs with a thickness of at least 160 mm to a hot rolling temperature.
  • the object of the present invention is to provide a plant that is improved compared to the prior art and a method that is improved compared to the prior art for producing a flat rolled product from thick cast steel and/or nonferrous metal slabs.
  • the object is achieved by a system having the features of patent claim 1 and by a method having the features of patent claim 12 .
  • the plant according to the invention for the production of flat rolled products from thick cast steel and/or non-ferrous metal slabs comprises a continuous casting device, by means of which a continuous product with a thickness of at least 160 mm can be cast continuously; a separating device arranged downstream of the continuous casting device, by means of which the flat continuous material can be separated into individual thick slabs; a hot rolling mill, via which the thick slabs can be rolled into the flat rolled product, the hot rolling mill comprising a roughing train and a finishing train, each with at least one roll stand and being arranged in a common (first) transport line with the at least one continuous casting device; at least one thick slab feeding device arranged transversely to the transport line and positioned between the cutting device and the rolling train; as well as at least one electrical heating device arranged upstream of the hot rolling mill in the transport direction, in particular upstream of the roughing train in the transport direction, for direct hot application, via which at least those thick slabs can be heated to a hot rolling temperature over their entire surface, which come from the
  • the thick slabs can be heated to the specified rolling temperature as required.
  • the term “thick slab” means a slab that has a minimum thickness of at least 160 mm, preferably a minimum thickness of at least 180 mm, more preferably a minimum thickness of at least 200 mm. Since the maximum thickness of the thick slabs is technologically limited due to the continuous casting equipment currently available, the maximum thickness of the thick slabs is preferably 300 mm, more preferably 250 mm. Such thick slabs typically have widths in the range from 800 to 2500 mm, preferably in the range from 1000 to 2300 mm.
  • thick slabs versus thin slabs has several positive effects.
  • the output quantity can be increased solely via the throughput, so that a higher degree of utilization can be achieved with the hot rolling mill.
  • Thick slabs also have a significant advantage over thin slabs in terms of quality.
  • thick slabs Compared to thin slabs, thick slabs have a smaller surface area per tonne of material cast. Temperature inhomogeneities of slabs transported in the transport line can be reduced. The smaller surface areas in relation to material cast per tonne reduces scale formation and there is less casting residue and surface defects, which means that material losses through their removal can be reduced.
  • the electric The heating device can advantageously comprise inductive heating devices, conductive heating devices and/or electrical heating devices with indirect resistance heating. Provision is particularly preferably made for the electrical heating device to be an inductive heating device or a conductive heating device. Due to the thickness range of the thick slabs, an inductive heating device can advantageously be operated according to the longitudinal field principle and enables rapid heating due to the high energy density. In the case of a conductive heating device, the respective thick slab forms part of the circuit and is thus heated directly by the electric current conducted through it, which enables a very high degree of efficiency (close to 1) and particularly rapid heating.
  • An inductive and/or conductive electrical heating device also has the advantage that it can be designed from a series connection of individual units both for the core and for the regions of the thick slab close to the surface.
  • an electric tunnel oven operated by resistance heating can also be provided.
  • a temperature profile can be set in the respective thick slab, which is specifically matched to the subsequent pre-rolling process, in particular the cooling that occurs during the pre-rolling. If cold spots (so-called "skid marks") are detected on the thick slab surface, which occur when using walking beam furnaces, for example, they can be specifically eliminated by selective heating, which can improve the quality of the flat rolled product then produced. The short heating times also reduce the formation of scale, which can improve both the output quantity and the surface quality.
  • the plant according to the invention enables each thick slab to be individually heated to the technologically required temperature level without overheating or undercooling.
  • full surface means that the thick slabs are heated to a specified nominal temperature over their entire surface and in a specific thickness as they pass through the electric heating device.
  • the nominal temperature of the thick slab is largely uniform and/or identical in three-dimensional dimensions, with permissible temperature differences being ⁇ 80° C., preferably ⁇ 50° C., particularly preferably ⁇ 20° C. of a set/nominal temperature.
  • the electrical heating device for direct hot use is preferably designed in such a way that the thick slabs can be heated over their entire surface.
  • a heating device not only enables specific heating of the edges, but also heating of the area between the edges middle part of the thick slab.
  • a further advantage of such an electrical heating device arranged in the transport direction before the hot rolling mill, in particular in the transport direction before the roughing train, for direct hot use is that this enables maximum utilization of the casting heat, which results in energy savings compared to conventional removal from a slab store of larger 70% are possible.
  • the present plant according to the invention is only suitable and intended for the production of flat rolled products from thick cast steel and/or non-ferrous metal slabs.
  • the thick slabs that are then produced can be temporarily stored without any problems or easily transported from a second transport line, in contrast to plants that are provided for the production of thin slabs, because of their typical dimensions.
  • thick slabs have a length of less than 12 meters, sometimes less than 10 meters, whereas thin slabs usually have lengths of at least 25 meters and are therefore more complicated to transport and store.
  • the flat rolled products of such a plant differ from plants that are provided for the production of thin slabs.
  • the length of a respective thick slab in particular for hot use, can correspond not only to a single coil length but also to a multiple thereof, since transport across the transport line and further handling steps are eliminated.
  • the continuous casting device is preferably designed in such a way that it can continuously cast a continuous product with a thickness of at least 160 mm.
  • the continuous casting device can be designed, for example, as a single or multi-strand continuous casting device.
  • the system can comprise at least one electrical pre-strip heating device arranged upstream of the finishing train in the transport direction, which is particularly preferably designed in such a way that the rolled flat rolled pre-product can be heated over its entire surface.
  • the rolled flat-rolled pre-products which leave the roughing train at a temperature of less than 1000 °C, for example, can be heated in a particularly energy-efficient manner to a temperature specifically specified for the finish-rolling process, as a result of which the desired properties of the flat-rolled product can be set.
  • temperature differences between the head and the end of a rolled flat rolled pre-product can be effectively compensated, which enables greater rolling stability and thus a higher output.
  • the associated more homogeneous temperature distribution also enables lower final strip thicknesses and more homogeneous mechanical properties of the flat rolled product produced.
  • the at least one thick slab feeding device is preferably designed as a transport and heating device, via which the transported and/or intermediately stored thick slabs, if necessary over the entire surface, are brought to the hot rolling temperature are heatable.
  • the transport and heating device can be designed in such a way that the temperature can be increased and/or maintained simultaneously or sequentially with the transport.
  • the thick slab feeding device is preferably designed in the form of a walking beam furnace which comprises at least one segment which comprises electrically operated heating elements and/or gas-operated burners.
  • a system designed in this way thus includes a first transport line, via which the thick slabs can be briefly heated to the hot rolling temperature directly using the casting heat by means of the electric heating device for direct hot use and then fed to the hot rolling mill.
  • a second transport line can also be provided parallel to the first transport line, via which thick slabs that are temporarily stored and/or cooled to 400 to 800 °C, which are usually stored in a slab store and/or a holding pit, are heated directly to the hot rolling temperature via the thick slab feeding device and then fed to the rolling process.
  • thick slabs cast in a second continuous casting device can also be fed to the rolling process via the thick slab feeding device.
  • the at least one, preferably two or a plurality of thick slab feeding devices is arranged between the electrical heating device for direct hot use and the roughing train.
  • the plant can also include at least one, preferably two or a plurality of thick slab feeding devices between the separating device and the electric heating device for direct hot use.
  • At least one electric thick slab preheating device can preferably be connected upstream on the inlet side, which is particularly preferably designed in such a way that the thick slabs can be heated over their entire surface.
  • the electric thick slab preheating device is particularly useful when higher temperatures are required for a short time to adjust the mechanical properties, such as strength, of the flat rolled products to be produced and the thick slab feeding device that then runs through is operated at a lower temperature level required for the flat rolled products to be produced can.
  • At least one electric thick slab post-heating device can be connected downstream of the at least one thick slab feeding device, which is particularly preferably designed in such a way that the thick slabs can be heated over their entire surface. Provision is particularly preferably made in this connection for the at least one electric thick slab reheating device to be arranged between the at least one thick slab feeding device and the roughing train.
  • the electric thick slab reheating device on the outlet side further increases the flexibility of the plant in order to produce in an optimal way in terms of energy on the one hand and to meet the logistical and technological requirements of the rolling mill as best as possible on the other.
  • the system can include at least one electrical supplementary thick slab heating device, which is preferably connected upstream of the at least one electrical thick slab reheating device.
  • the rolling mill should have specific rolling program profiles possible, because when using the same slab widths, the availability in the hot rolling mill is reduced due to an increase in the number of necessary work roll changes.
  • the roughing train therefore includes in the direction of transport in addition to a first and/or a second roughing stand, at least one upsetting device. Provision is preferably made for the upsetting device to comprise at least one slab upsetting press and/or, if appropriate, at least one, preferably a plurality of upsetting devices.
  • the upsetting device such as the slab upsetting press, possibly in combination with at least one upset, a necessary width and profile-related optimized rolling program can be ensured, since larger and/or constant slab widths can be cast.
  • the upsetting device is designed in such a way that the slab width can be reduced by up to 450 mm, preferably up to 350 mm.
  • the use of additional edgers enables the slab width to be further reduced by up to 100 mm per edger.
  • the system can comprise a control device with an associated calculation unit, the control device being designed to control the system on the basis of minimized energy consumption and/or a maximum throughput and/or on the basis of product properties and/or product dimensions and /or to regulate.
  • the calculation unit can preferably use a physical process model which maps the thermal conditions and determines proposals for setting the system.
  • the control device can control the system in such a way that a maximum throughput is achieved.
  • groups of batches in special thickness, width and/or length dimensions can be created through optimization the casting sequences, the introduction sequences, the transport device and/or by operating the rolling mill at the design limit, by means of which the throughput can be increased.
  • maintenance cycles such as roll change times, mold change times and/or mold changeover times can also be taken into account.
  • the grouping of batches and/or sequences according to the product dimensions has the advantage that material losses through transition pieces when changing width or thickness can be avoided as far as possible.
  • the system can also be controlled by the calculation unit in accordance with product properties. If, for example, a very high surface quality is required, the calculation unit can set a correspondingly slow casting speed, greater descaling, corresponding temperature control, etc. Equally, the setting of the system can be optimized to set optimal magnetic, mechanical and/or geometric properties.
  • the system can also include several specifically arranged thermal insulation hoods.
  • the thermal insulation hoods can be designed as passive or active thermal insulation hoods.
  • the active thermal insulation hoods are preferably operated with burners using "green" produced hydrogen as fuel or electrically.
  • the system can include a plurality of thermal insulation hoods between the separating device and the electric heating device for direct hot use and possibly between the electric heating device for direct hot use and the hot rolling mill, in particular the roughing train.
  • the system can also include a plurality of thermal insulation hoods within the roughing train. These can be arranged, for example, in the transport direction in front of and/or behind an upsetting device and, if necessary, in front of and/or behind one and/or each roughing stand.
  • the present invention also relates to a method for producing flat rolled products from thick cast steel and/or non-ferrous metal slabs, preferably using the plant according to the invention, comprising the method steps: i) continuous casting of a flat billet with a thickness of at least 160 mm, which is then separated into individual thick slabs; iia) heating the thick slabs to a temperature of at least 1000°C by means of an electric heating device for direct hot charging when the thick slab comes from the continuous casting device arranged in the common transport line; and/or üb) heating the thick slabs to a temperature of at least 1000 °C by means of at least one additional heating device and/or by means of a thick slab feeding device when the thick slabs are transported from a second transport line transversely into the first transport line, and iii) hot rolling of the one Hot rolling temperature heated thick slabs to the flat rolled product by first pre-rolled and then finish-rolled.
  • the thick slabs are preferably fed at a temperature of at least 500° C. to the first electrical heating device for direct hot use.
  • the pre-rolled flat rolled product is heated to a temperature of at least 950° C. by means of an electrical pre-strip heating device before it is finish-rolled to form the flat rolled product.
  • the present invention also relates to the use of at least one electric heating device arranged upstream of a hot rolling mill in the transport direction for direct hot use, in particular an inductive heating device, for heating thick slabs with a thickness of at least 160 mm to a hot rolling temperature.
  • FIG. 6 shows an embodiment variant of a roughing train.
  • FIG. 1 shows a first variant of a plant 1 for the production of rolled products from thick-cast steel and/or non-ferrous metal slabs.
  • the plant 1 comprises a continuous casting device 3 which is arranged in a transport line T and which in the present case is set up to continuously to cast continuous stock with a thickness in the range of 200 to 250 mm.
  • the continuous material then obtained (not shown) is then immediately separated into individual thick slabs by means of a separating device 4, for example a pendulum shear or continuous material burning device, and fed directly to a hot rolling mill 5 using the casting heat, in which they are then first pre-rolled and then finish-rolled.
  • a separating device 4 for example a pendulum shear or continuous material burning device
  • the system 1 has a roller table 6 in the first transport line T, which extends through the system 1 .
  • the roller table 6 can be covered in segments with a plurality of active or passive thermal insulation hoods 22, two of which are shown purely as an example in the present embodiment. As a result, the energy and temperature losses of the thick slabs on the transport route to the hot rolling mill 5 can be kept as low as possible.
  • the thick slabs usually cool down to an average temperature of 800 to 900° C. on the transport route to the hot rolling mill 5 .
  • the thick slabs are heated to a hot rolling temperature of 1100 to 1300° C. over their entire surface in the transport direction upstream of the hot rolling mill 5 by means of an electrical heating device for direct hot use 7 .
  • the electrical heating device 7 is designed as a longitudinal field inductor and thus enables the cooled thick slab to be heated briefly to the specific hot-rolling temperature.
  • the embodiment variant shown in FIG. 1 comprises a control device S, which includes a calculation unit B. This can determine those operating settings that have a minimized energy consumption.
  • the control device S is connected to the system 1 in terms of signals and makes the necessary settings for the system 1 for the production of the thick slab.
  • an optimization of the operating settings can additionally and/or alternatively be carried out maximum throughput, and/or product properties and/or
  • FIG. 2 shows a further variant of the system 1 according to the invention.
  • the system 1 also includes an electric pre-strip heating device 10 between a roughing train 8 and a finishing train 9 of the hot rolling mill 5.
  • the electric pre-strip heating device 10 is also designed as a longitudinal field inductor or inductor combination in such a way that the pre-rolled Flat rolled products can be heated over the entire surface.
  • the pre-rolled flat rolled products, which leave the pre-rolling train 8 at a temperature below 1100° C., are heated particularly energy-efficiently to a temperature of 950 to 1100° C. specifically specified for the finish-rolling process by means of the electrical pre-strip heating device 10 .
  • FIG 3 shows a further embodiment of the plant 1 according to the invention.
  • the plant 1 includes a to the first transport line T1 arranged parallel second transport line T2 comprising a second roller table 6.2, a second continuous casting device 11, which is also set up to continuously cast a billet with a thickness in the range from 200 to 250 mm, and a second cutting device 12.
  • the second cutting device 12 can also be designed in the form of a pendulum shear or a billet burning device.
  • the second roller table 6.2 can also be covered in segments with a plurality of active or passive thermal insulation hoods 22, as can be seen from the different ones.
  • the plant 1 in this embodiment variant also includes a thick slab feeding device 15, which is designed as a gas-operated transport and heating device.
  • the thick slab feeding device 15 is arranged between the electric heating device for direct hot charging 7 and the roughing train 8 and transversely to the direction of transport.
  • the plant 1 comprises two electric thick slab preheating devices 16.1, 16.2, which are connected upstream of the thick slab feeding device 15 on the inlet side.
  • the two preheating devices 16.1, 16.2 are also designed as longitudinal field inductors or inductor combinations in such a way that the thick slabs can be heated over their entire surface.
  • the plant 1 comprises a series of two electric heating devices 7, 17, which are arranged in the transport direction between the slab store 13 and the roughing train 8.
  • a sequence of three electrical heating devices 7, 17, 18 is arranged between the slab store 13 and the roughing train 8 in the embodiment variant according to FIG.
  • the embodiment variant shown in FIG. 5 includes the electrical heating devices 16.1, 16.2 arranged in the second transport line T2. This large number of heating devices 7, 16.1, 16.2, 17, 18 makes it possible to carry out a particularly individual and performance-related design and operation of these without loss of performance or oversized design.
  • All heating devices 7, 10, 16.1, 16.2, 17, 18 of the exemplary embodiments are shown only schematically and usually include a number of individual inductors which can be passed through sequentially. An individual switching on and off, as well as an individual power setting enables a very precise setting of the desired or necessary temperature rise.
  • inductors designed exclusively as longitudinal field inductors there are also combination sequences of longitudinal field and quadrature field inductors, which can be run through sequentially.
  • the completely or partially cooled thick slabs can be introduced from a slab store 13 into the thick slab feeding device 15 and at the same time heated to a hot rolling temperature and transported.
  • the completely or partially cooled thick slabs can be brought into the thick slab feeding device 15 from a slab store 13 or alternatively from a holding pit 14 and at the same time heated to a hot rolling temperature and transported.
  • the arrangement and number of thick slab feeding devices 15 can be varied as desired.
  • the thick slab feeding device 15 can be an electrically and/or gas-operated continuous and/or walking beam furnace.
  • a heating device belonging to the thick slab feeding device 15 can preheat the thick slab to a somewhat higher temperature, the transport itself then takes place without active heat input via a preferably insulated transport passage or walking beam.
  • the thick slabs temporarily stored and cooled in the slab store 13 or in the holding pit can be transported via the thick slab feeding device 15 14 thick slabs temporarily stored at 200 to 800 °C and slightly cooled are heated to a hot rolling temperature before they are then fed to the rolling process via the first roller table 6.1.
  • FIG. 6 also shows an embodiment variant of a roughing train 8 which, in the direction of transport, comprises an upsetting device 19 and at least a first and preferably a second roughing stand 20, 21, each of which has a horizontal and preferably a vertical stand.
  • a number of thermal insulation hoods 22 are provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)

Abstract

L'invention concerne un système (1) et un procédé de fabrication de produits laminés plats à partir de dalles d'acier à fonte épaisse et/ou de métal non ferreux, le système (1) comprenant : i) au moins un dispositif de coulée continue (3), au moyen duquel un produit coulé en continu plat d'une épaisseur d'au moins 160 mm peut être coulé en continu ; ii) un dispositif de séparation (4), qui est disposé de manière à être adjacent audit au moins un dispositif de coulée continue (3) et au moyen duquel le produit plat coulé en continu peut être séparé en dalles individuelles épaisses ; iii) un laminoir à chaud (5), par l'intermédiaire duquel les dalles épaisses peuvent être laminées pour former le produit laminé plat, le laminoir à chaud (5) comprenant un train de pré-laminage (8) et un train de laminage de finition (9), chacun de ceux-ci comprenant au moins une cage de laminoir, et le laminoir à chaud et ledit au moins un dispositif de coulée continue (3) sont disposés sur une ligne de transport commune (T1) ; iv) au moins un dispositif d'alimentation en dalles épaisses (15) qui est disposé transversalement à la direction de transport (T1) et qui est positionné entre le dispositif de séparation (4) et le train de laminage (5) ; et v) au moins un dispositif de chauffage électrique disposé devant le laminoir à chaud (5), en particulier devant le train de pré-laminage (8) dans la direction de transport, pour un processus de charge à chaud direct (7), ledit dispositif de chauffage électrique permettant à au moins les dalles épaisses provenant du dispositif de coulée continue (3) disposées sur la ligne de transport commune d'être complètement chauffées à une température de laminage à chaud.
PCT/EP2022/077112 2021-10-01 2022-09-29 Système et procédé de production de produits laminés plats Ceased WO2023052500A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2024519577A JP2024533794A (ja) 2021-10-01 2022-09-29 平らな圧延製品の製造ための設備および方法
EP22799874.7A EP4408595A1 (fr) 2021-10-01 2022-09-29 Système et procédé de production de produits laminés plats
CN202280066516.9A CN118043146A (zh) 2021-10-01 2022-09-29 用于制造扁平轧材的系统和方法
US18/695,875 US20250129444A1 (en) 2021-10-01 2022-09-29 System and method for producing flat rolled products

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102021211091 2021-10-01
DE102021211091.6 2021-10-01
DE102022208767.4 2022-08-24
DE102022208767.4A DE102022208767A1 (de) 2021-10-01 2022-08-24 Anlage und Verfahren zur Herstellung von Walzprodukten

Publications (1)

Publication Number Publication Date
WO2023052500A1 true WO2023052500A1 (fr) 2023-04-06

Family

ID=84053060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/077112 Ceased WO2023052500A1 (fr) 2021-10-01 2022-09-29 Système et procédé de production de produits laminés plats

Country Status (4)

Country Link
US (1) US20250129444A1 (fr)
EP (1) EP4408595A1 (fr)
JP (1) JP2024533794A (fr)
WO (1) WO2023052500A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024205357A1 (de) 2023-06-09 2024-12-12 Sms Group Gmbh Einrichtung und Verfahren zum Aufheizen einer Bramme

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262223B2 (fr) 1982-08-18 1990-12-25 Q P Corp
EP0610028A2 (fr) * 1993-01-29 1994-08-10 Hitachi, Ltd. Procédé et dispositif pour la coulée continue et le laminage à chaud
WO2004069440A1 (fr) * 2003-02-04 2004-08-19 Sms Demag Aktiengesellschaft Procede pour le laminage en un feuillard a chaud de brames minces et/ou epaisses en materiaux a base d'acier
DE112011105560T5 (de) * 2011-09-28 2014-05-15 Mitsubishi-Hitachi Metals Machinery, Inc. Warmwalzanlage
EP3094425B1 (fr) * 2014-01-17 2018-06-20 Danieli & C. Officine Meccaniche, S.p.A. Dispositif et procédé pour la production de produits métalliques
JP6562223B2 (ja) * 2017-01-18 2019-08-21 Ｊｆｅスチール株式会社 連続鋳造スラブの加熱方法および加熱設備

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2910490B2 (ja) * 1993-03-25 1999-06-23 株式会社日立製作所 鋳造熱間圧延連続設備及び鋳造熱間圧延連続設備の運転方法
JPH10175001A (ja) * 1996-05-01 1998-06-30 Mitsubishi Heavy Ind Ltd 熱間圧延設備及び熱間圧延方法
JPH1094801A (ja) * 1996-09-26 1998-04-14 Kawasaki Steel Corp 熱間スラブの幅プレス方法
DE10154138A1 (de) * 2001-11-03 2003-05-15 Sms Demag Ag Verfahren und Gießwalzanlage zum Herstellen von Stahlband, insbesondere von Edelstahl-Band
DE102007005015A1 (de) * 2006-06-26 2008-01-03 Sms Demag Ag Verfahren und Anlage zur Herstellung von Warmband-Walzgut aus Siliziumstahl auf der Basis von Dünnbrammen
JP6152839B2 (ja) * 2014-10-09 2017-06-28 Ｊｆｅスチール株式会社 熱延鋼板の製造設備および製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262223B2 (fr) 1982-08-18 1990-12-25 Q P Corp
EP0610028A2 (fr) * 1993-01-29 1994-08-10 Hitachi, Ltd. Procédé et dispositif pour la coulée continue et le laminage à chaud
WO2004069440A1 (fr) * 2003-02-04 2004-08-19 Sms Demag Aktiengesellschaft Procede pour le laminage en un feuillard a chaud de brames minces et/ou epaisses en materiaux a base d'acier
DE112011105560T5 (de) * 2011-09-28 2014-05-15 Mitsubishi-Hitachi Metals Machinery, Inc. Warmwalzanlage
EP3094425B1 (fr) * 2014-01-17 2018-06-20 Danieli & C. Officine Meccaniche, S.p.A. Dispositif et procédé pour la production de produits métalliques
JP6562223B2 (ja) * 2017-01-18 2019-08-21 Ｊｆｅスチール株式会社 連続鋳造スラブの加熱方法および加熱設備

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024205357A1 (de) 2023-06-09 2024-12-12 Sms Group Gmbh Einrichtung und Verfahren zum Aufheizen einer Bramme
WO2024252030A1 (fr) 2023-06-09 2024-12-12 Sms Group Gmbh Dispositif et procédé pour chauffer une brame

Also Published As

Publication number Publication date
JP2024533794A (ja) 2024-09-12
EP4408595A1 (fr) 2024-08-07
US20250129444A1 (en) 2025-04-24

Similar Documents

Publication Publication Date Title
DE69316703T2 (de) Verfahren und anlage zum stranggiessen von brammen mittlerer dicke und zum unmittelbar nachfolgenden herstellen von warmbändern und -blechen
AT522345B1 (de) Heizungsvorrichtung zum induktiven Erhitzen eines Flachstahlstreifens in einem Warmwalzwerk
DE69814513T2 (de) Walzverfahren und Walzstrasse für dünne Flacherzeugnisse
DE69125926T2 (de) System und verfahren zum formen dünner flacher warmgewalzter metallbänder
DE69730750T2 (de) Verfahren zur herstellung eines stahlbandes
DE69606137T3 (de) Verfahren und Anlage zum Walzen von Bänder und Blechen
WO2002024355A1 (fr) Procede et installation pour produire des feuillards et des toles en acier
EP0593001B1 (fr) Méthode et dispositif pour manufacture de tÔles ou poutres laminées à chaud en matière coulée
AT504782A4 (de) Verfahren zur herstellung eines warmgewalzten stahlbandes und kombinierte giess- und walzanlage zur durchführung des verfahrens
EP2464469A2 (fr) Dispositif et procédé de production d'un feuillard à chaud mince
EP1982134A1 (fr) Four à rouleaux destiné au chauffage et/ou à la compensation de température de produits de coulée continue en acier ou en alliages d'acier et disposition d'un tel four en amont d'un train finisseur à feuillards à chaud
EP2032284A1 (fr) Procédé et dispositif permettant de produire une bande métallique par coulée continue
EP3341142B1 (fr) Procédé de fonctionnement d'une installation fonctionnant suivant le concept csp (compact strip production)
EP2516079A2 (fr) Procédé de laminage à chaud d'une brame et laminoir à chaud
WO2021058433A1 (fr) Dispositif et procédé de fabrication et d'usinage ultérieur de brames
WO2023052500A1 (fr) Système et procédé de production de produits laminés plats
DE102022208767A1 (de) Anlage und Verfahren zur Herstellung von Walzprodukten
DE4009861C2 (de) Verfahren zur Herstellung von warmgewalztem Stangenmaterial wie Feinstahl oder Draht und Anlage zur Durchführung des Verfahrens
EP2663412B1 (fr) Installation et procédé destinés à produire des bandes d'acier laminées à chaud
EP3797006B1 (fr) Installation de coulée et de laminage destinée au fonctionnement par lots et continu
CN118043146A (zh) 用于制造扁平轧材的系统和方法
EP1648628A1 (fr) Dispositif permettant de chauffer une bande metallique, et installations equipees de ce dispositif, servant a produire des bandes metalliques laminees a chaud
EP0808672B1 (fr) Procédé et installation de fabrication des tôles en acier inoxydable ou en acier de carbone à partir des brames minces coulées
DE102021211339A1 (de) Vorrichtung und Verfahren zur Herstellung von warmgewalzten Metallbändern
EP4072746B1 (fr) Train de laminage modulaire, en particulier train de laminage à chaud, de préférence conjointement avec une installation de coulée en amont

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22799874

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 18695875

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2024519577

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 202280066516.9

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 202447034125

Country of ref document: IN

ENP Entry into the national phase

Ref document number: 2022799874

Country of ref document: EP

Effective date: 20240502

WWP Wipo information: published in national office

Ref document number: 18695875

Country of ref document: US