EP4015099A1 - Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage - Google Patents

Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage Download PDF

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Publication number
EP4015099A1
EP4015099A1 EP20214219.6A EP20214219A EP4015099A1 EP 4015099 A1 EP4015099 A1 EP 4015099A1 EP 20214219 A EP20214219 A EP 20214219A EP 4015099 A1 EP4015099 A1 EP 4015099A1
Authority
EP
European Patent Office
Prior art keywords
strip
intermediate strip
temperature
descaling
inductive
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.)
Pending
Application number
EP20214219.6A
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German (de)
English (en)
Inventor
Heinz Fürst
Simon Grosseiber
Thomas Lengauer
Michael Zahedi
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria 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
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP20214219.6A priority Critical patent/EP4015099A1/fr
Priority to US17/550,028 priority patent/US11987859B2/en
Priority to CN202111532335.4A priority patent/CN114632819A/zh
Publication of EP4015099A1 publication Critical patent/EP4015099A1/fr
Priority to US18/599,283 priority patent/US20240209471A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/60—Continuous furnaces for strip or wire with 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
    • B21B1/46—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
    • 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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
    • 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
    • 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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/06—Thermomechanical rolling

Definitions

  • the present invention relates to the technical field of steel metallurgy, specifically the particularly energy-efficient production of a ferritic hot strip in a combined casting and rolling plant.
  • the invention relates to a method for producing a ferritic hot strip in a combined casting and rolling plant, comprising the steps of: continuous casting of a liquid steel to form a strand with a slab or thin slab cross section in a continuous casting plant; Pre-rolling the strand into an intermediate strip in a multi-stand roughing train; descaling the broad sides of the heated intermediate strip in a descaling device; Finish rolling of the descaled intermediate strip to form the hot strip in a multi-stand finishing train, with at least the last rolling pass in the finishing train taking place in the ferritic temperature range of the steel; Setting the hot strip to coiler temperature; and coiling the hot strip in a coiler.
  • the invention relates to a combined casting and rolling plant which is particularly well suited for the production of a ferritic hot strip, comprising: a continuous casting plant for continuously casting a liquid steel into a strand with a slab or thin slab cross section; a multi-stand roughing train for rough-rolling the strand into an intermediate strip; a descaling device for descaling the broad sides of the heated intermediate strip; a multi-stand finishing train for finish-rolling the descaled intermediate strip to form the hot strip, with at least the last rolling pass in the finishing train taking place in the ferritic temperature range of the steel; a cooling line to adjust the hot strip to coiler temperature; and a coiler for coiling the hot strip.
  • a ferritic hot strip in a combined casting and rolling plant through the steps of continuously casting a strand with a slab or thin slab cross-section, pre-rolling of the strand to form an intermediate strip in a multi-stand roughing train, heating the intermediate strip to an average temperature ⁇ 1070 °C, descaling the heated intermediate strip, finish-rolling the descaled intermediate strip to form a hot strip in a multi-stand finishing train, with at least the last rolling pass in the finishing train in the ferritic temperature range takes place, cooling the hot strip to coiler temperature, and coiling the hot strip in a coiler.
  • the ferritic hot strip produced has good metallurgical properties and a good surface quality
  • the process is energy-intensive, since the average temperature of the intermediate strip is first brought to a high temperature ⁇ 1070 °C, the intermediate strip is then descaled and then the average temperature of the intermediate strip is increased in an intensive cooling step Intermediate bands is cooled to ⁇ 900 °C. How the process can be changed so that the hot strip has the same good metallurgical properties and good surface quality, but the use of energy is greatly reduced, is not clear from the document.
  • the object of the invention is to modify a method for producing a ferritic hot strip in a combined casting and rolling plant in such a way that the ferritic hot strip can be produced much more energy-efficiently, but still has good metallurgical properties and a good surface quality.
  • a particularly well-suited casting-rolling compound system is to be specified.
  • the solution is a method for producing a ferritic hot strip in a combined casting and rolling plant, with the steps: continuous casting of a liquid steel to form a strand with a slab or thin slab cross section in a continuous casting plant; Pre-rolling the strand into an intermediate strip in a multi-stand roughing train; Heating the broadsides of the intermediate strip by one or preferably more inductive surface heating modules to a surface temperature ⁇ 1000 ° C, preferably ⁇ 1050 ° C, wherein the surface heating module is operated with an alternating current with a first frequency f1 and for the first frequency f1 applies: f1 ⁇ 20 kHz, preferably f1 ⁇ 50 kHz, particularly preferably f1 ⁇ 100 kHz; descaling the broad sides of the heated intermediate strip in a descaling device; Finish rolling of the descaled intermediate strip into the hot strip in a multi-stand finishing train, where the descaled intermediate strip enters a first stand of the finishing train after descaling without further cooling at
  • the mean temperature (also known as average temperature) is understood to mean that temperature which corresponds to the average temperature of the different layers of the intermediate strip in the thickness direction. It is therefore not generally the temperature that the intermediate strip has in the middle (i.e. in the central region) in the thickness direction.
  • the hot strip When the hot strip is adjusted to the coiler temperature, the hot strip is typically thermally insulated in the area between the last stand of the finishing train and the coiler, so that the average temperature of the hot strip drops only slightly. As a result, a high coiling temperature is achieved without actively heating or reheating the hot strip. As an alternative to this, the hot strip can either be actively cooled or even heated up by a heating device. A combination of a heating device after the last stand of the finishing mill and a cooling section for actively cooling the hot strip before coiling is also conceivable and advantageous for certain steel grades.
  • the intermediate strip is heated to a surface temperature ⁇ 1000° C. by at least one surface heating module. Since the surface heating module or modules are operated with an alternating current with a first frequency f1 and the following applies to the first frequency f1: f1 ⁇ 20 kHz, only the near-surface layers of the broadsides are heated, with the temperature of the core of the intermediate strip changing only slightly. In other words, the surface temperature on the broad sides of the intermediate strip is increased by the surface heating module or modules to a much greater extent than the average temperature of the intermediate strip.
  • the broad sides of the hot intermediate strip are then descaled, for example using a pinch roll descaler.
  • the descaled intermediate strip enters the first stand of the finishing train at an average temperature of 775 - 900 °C and is finish-rolled in the multi-stand finishing train to form the hot strip.
  • the temperature of the ferritic hot strip adjusted to the coiling temperature and in the coiling system to bundles, engl. coils, coiled.
  • the inductive surface heating modules only heat the layers of the broad sides close to the surface and not all layers of the intermediate strip evenly. Since the broadsides have a surface temperature ⁇ 1000 °C before descaling, descaling is very thorough, which results in a high surface quality of the hot strip.
  • the descaled intermediate strip enters the first stand of the finishing mill directly at an average temperature of 775 - 900 °C without being cooled down separately in an intensive cooling step after descaling. Accordingly, energy is saved on the one hand, since only the layers close to the surface of the broad sides of the intermediate strip have to be heated to a comparatively high temperature before descaling and not the entire intermediate strip.
  • the average temperature of the intermediate strip before descaling can be very low (e.g. between 875 and 990°C), which in turn is very favorable for the energy efficiency of the manufacturing process.
  • the ratio between the thickness s of the intermediate strip and the penetration depth d into the heated intermediate strip is preferably: s/d ⁇ 6, preferably s/d ⁇ 10, particularly preferably s/d ⁇ 14 and very particularly preferably s/d ⁇ 16
  • the so-called penetration depth ⁇ also known as the current penetration level
  • the penetration depth d may be a maximum of 4 mm for s/ d ⁇ 6.
  • An inductive surface heating module preferably heats the intermediate strip by transverse field heating. However, it is also possible that heating through Longitudinal field heating takes place. With transverse field heating, it is advantageous for a first inductor to heat the upper broadside of the intermediate strip and a second inductor to heat the lower broadside of the intermediate strip.
  • the so-called coupling gap which is the vertical distance between an upper inductor and an upper broad side of the intermediate strip, as a function of the intermediate strip thickness.
  • the adjustment is made e.g. by a linear motor.
  • each broad side of the intermediate strip is descaled by at least one row, each with a plurality of spray nozzles.
  • the spray nozzles in a row are either stationary or arranged on rotating rotors.
  • a good descaling effect is achieved if the descaling is carried out using a liquid descaling agent, for example water, with the descaling agent being applied to the spray nozzles at a pressure of 450 bar>p>100 bar.
  • a liquid descaling agent for example water
  • a pair of driver rollers pinch rolls is arranged in front of the first row and behind the last row of spray nozzles.
  • the average temperature of the intermediate strip can be increased in an induction furnace using several inductive through-heating modules before the broadsides are heated.
  • the average temperature of the intermediate band is increased to about the same extent as the surface temperature by the heating module or modules. It is advantageous here if the inductive surface heating modules are operated at a first frequency f1 and the inductive through-heating modules at a second frequency f2, where: f1>f2, preferably f1 ⁇ 2*f2, particularly preferably f1 ⁇ 5*f2.
  • a temperature controller taking into account T is dependent a set surface temperature T set outputs a manipulated variable to at least one, preferably to several, inductive heating modules, and the heating modules heat the intermediate strip to such an extent that the measured surface temperature T actual corresponds as closely as possible to the set surface temperature T set .
  • This method is based on the finding that the temperature of the heated and descaled intermediate strip before the finishing train can only be measured imprecisely and that the temperature measurement in one of the intermediate stand areas of the first three stands is much more accurate.
  • the inductive through-heating modules are controlled by a temperature controller depending on the measured actual temperature, taking into account the target temperature, so that the actual temperature corresponds as closely as possible to the target temperature.
  • An induction furnace with a plurality of inductive through-heating modules is preferably arranged in the material flow direction between the roughing train and the inductive surface heating modules, with the induction furnace increasing the average temperature of the intermediate strip.
  • a pyrometer for measuring the surface temperature T actual of the partially finish-rolled intermediate strip is arranged between the first and the second or between the second and the third finishing stand of the finishing train, the pyrometer with a temperature controller and the temperature controller with at least one inductive heating module in terms of signaling are connected, the temperature controller can output a manipulated variable to at least one inductive heating module, taking into account T actual as a function of a target surface temperature T setpoint , with the heating modules being able to heat the intermediate strip to such an extent that the measured surface temperature T actual is as close as possible to the target surface temperature T should correspond.
  • the strand 3 leaves the continuous caster 2 with a thickness of 90 mm and a speed of 6 m/min.
  • the partially solidified strand 3 is preferably subjected to a soft core or a liquid core reduction (LCR) in the curved strand guide. This reduces the thickness of the strand and improves its internal quality.
  • the strand 3 enters the three-stand roughing train 5 uncut and is reduced there to an intermediate strip 4 with a thickness of 12.4 mm.
  • the last pass in stand R3 of roughing train 5 takes place in the austenitic temperature range at a final rolling temperature of 1050°C.
  • the average temperature of the intermediate strip 4 is then increased from 900° C. to 950° C.
  • the surface temperature of the broad sides of the through-heated intermediate strip 4 is heated to 1070° C. by two surface heating modules 7 .
  • the surface heating modules are operated at a frequency of 50 kHz and heat the intermediate strip by transverse field heating. Due to the heating of the broadsides, the mean temperature of the intermediate strip rises to 960°C.
  • the broad sides of the intermediate strip 4 are descaled in a descaling device D, specifically a so-called pinch roll descaler .
  • the average temperature of the intermediate strip drops to 850 °C.
  • the descaled intermediate strip 3 enters the five-stand finishing train 8 and is finish-rolled there in 5 passes to form a hot strip 6 with a thickness of 1.7 mm. Since the last rolling pass in stand F5 takes place at an average temperature of 760°C, a hot strip with a ferritic structure is present after the last rolling pass at the latest.
  • the last three rolling passes in the roll stands F3, F4 and F5 (particularly preferably all rolling passes in) of the finishing train 8 are carried out using roll gap lubrication.
  • a mineral oil is sprayed between the work rolls of the finishing stand and the rolling stock, which reduces the coefficient of friction in the roll gap to a value ⁇ ⁇ 0.15.
  • the hot strip 6 leaves the finishing train 8 with a surface temperature of 760°C.
  • the hot strip is not actively cooled in the region of the cooling section 9 shown in dashed lines, but is thermally insulated by insulating panels 14 .
  • the winding temperature is 700°C.
  • the endless hot strip is cut crosswise by the shears 10 and that winding on another (in figure 1 not shown) winding device continued, the ferrite in the hot strip 6 at least partially forms a ⁇ 1 1 1 ⁇ texture.
  • the hot strip 6 is cut directly in front of the winding devices and wound up alternately by at least two winding devices DC.
  • the coiled hot strip 6 has good deep-drawing properties, without the hot strip 6 having to be cold-rolled or annealed after the hot-rolling.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Metal Rolling (AREA)
EP20214219.6A 2020-12-15 2020-12-15 Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage Pending EP4015099A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20214219.6A EP4015099A1 (fr) 2020-12-15 2020-12-15 Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage
US17/550,028 US11987859B2 (en) 2020-12-15 2021-12-14 Energy-efficient production of a ferritic hot-rolled strip in an integrated casting-rolling plant
CN202111532335.4A CN114632819A (zh) 2020-12-15 2021-12-15 在铸轧复合设备中铁素体的热轧带材的有能效的制造
US18/599,283 US20240209471A1 (en) 2020-12-15 2024-03-08 Energy-efficient production of a ferritic hot-rolled strip in an integrated casting-rolling plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20214219.6A EP4015099A1 (fr) 2020-12-15 2020-12-15 Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage

Publications (1)

Publication Number Publication Date
EP4015099A1 true EP4015099A1 (fr) 2022-06-22

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Application Number Title Priority Date Filing Date
EP20214219.6A Pending EP4015099A1 (fr) 2020-12-15 2020-12-15 Fabrication efficace en énergie d'un feuillard à chaud ferritique dans une installation composite de coulée et de laminage

Country Status (3)

Country Link
US (2) US11987859B2 (fr)
EP (1) EP4015099A1 (fr)
CN (1) CN114632819A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115351082B (zh) * 2022-08-24 2024-07-09 中冶赛迪工程技术股份有限公司 一种连续热轧超薄低碳带钢的方法及生产线

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758108C1 (de) * 1997-12-17 1999-01-14 Mannesmann Ag Produktionsverfahren und -anlage zur endlosen Erzeugung von warmgewalzten dünnen Flachprodukten
EP3025799A1 (fr) * 2014-11-28 2016-06-01 SMS group GmbH Installation de laminage, installation de coulé-laminage et procédé de fabrication d'une bande de métal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795005B1 (fr) * 1999-06-17 2001-08-31 Lorraine Laminage Procede de fabrication de toles aptes a l'emboutissage par coulee directe de bandes minces, et toles ainsi obtenues
JP2002210510A (ja) * 2001-01-15 2002-07-30 Mitsubishi Heavy Ind Ltd 圧延ロールの誘導加熱装置および誘導加熱方法
ITMI20021996A1 (it) * 2002-09-19 2004-03-20 Giovanni Arvedi Procedimento e linea di produzione per la fabbricazione di nastro a caldo ultrasottile sulla base della tecnologia della bramma sottile
JP4169624B2 (ja) * 2003-03-31 2008-10-22 三菱電機株式会社 トランスバース型誘導加熱装置
MXPA06009715A (es) * 2004-02-27 2007-03-26 Hermetik Hydraulik Ab Dispositivo hidraulico que se usa para descascarillar productos laminados calientes.
EP2524971A1 (fr) * 2011-05-20 2012-11-21 Siemens VAI Metals Technologies GmbH Procédé et dispositif de préparation de produits de laminage en acier avant le laminage à chaud
WO2016129040A1 (fr) * 2015-02-09 2016-08-18 東芝三菱電機産業システム株式会社 Système de décalaminage, et dispositif et procédé de commande associés
EP3769862A1 (fr) 2019-07-24 2021-01-27 Primetals Technologies Austria GmbH Procédé de fabrication d'une bande finie à emboutir d'acier dans une installation combinée de laminage en coulée continue

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758108C1 (de) * 1997-12-17 1999-01-14 Mannesmann Ag Produktionsverfahren und -anlage zur endlosen Erzeugung von warmgewalzten dünnen Flachprodukten
EP3025799A1 (fr) * 2014-11-28 2016-06-01 SMS group GmbH Installation de laminage, installation de coulé-laminage et procédé de fabrication d'une bande de métal

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Publication number Publication date
US20220186340A1 (en) 2022-06-16
US20240209471A1 (en) 2024-06-27
US11987859B2 (en) 2024-05-21
CN114632819A (zh) 2022-06-17

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