EP3934822A1 - Method for producing a metallic strip or plate - Google Patents
Method for producing a metallic strip or plateInfo
- Publication number
- EP3934822A1 EP3934822A1 EP20700907.7A EP20700907A EP3934822A1 EP 3934822 A1 EP3934822 A1 EP 3934822A1 EP 20700907 A EP20700907 A EP 20700907A EP 3934822 A1 EP3934822 A1 EP 3934822A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- strip
- rolling mill
- sheet
- roll stand
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 88
- 238000000034 method Methods 0.000 claims abstract description 55
- 238000004364 calculation method Methods 0.000 claims abstract description 30
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims description 54
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000013528 artificial neural network Methods 0.000 claims description 3
- 238000004422 calculation algorithm Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 239000012071 phase Substances 0.000 description 22
- 239000000498 cooling water Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910017112 Fe—C Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
-
- 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
-
- 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
Definitions
- the invention relates to a method for producing a metallic strip or sheet according to the preamble of claim 1.
- a production method for a hot-rolled steel sheet is known, with cooling water being sprayed on an inside of a last stand or end stand of a rolling mill on a lower process side of the end stand in a series of hot-rolled rolling mills to thereby produce a rolling material to achieve a quick cooling.
- a surface temperature of the rolling material is measured on an entry side of the end stand in order to thereby determine an entry-side surface temperature.
- the measured inlet-side surface temperature and a predetermined inlet-side target surface temperature are then compared with one another, based on this comparison a control command to at least one unit formed from a coil box, an ingot heating device, a descaling device and / or an intermediate rolling stand cooling device is sent, so that the measured entry-side surface temperature is equal to the predetermined entry-side target surface temperature.
- the invention is based on the object of optimizing the temperature control and / or at least one further process parameter when forming or processing a strip or sheet with a multi-stand rolling stand.
- a method according to the present invention is used in the production of a metallic strip or sheet, in which the strip or sheet is rolled in a multi-stand rolling mill and is brought out behind the last roll stand of the rolling mill in the conveying direction.
- the strip or sheet is cooled in the multi-stand rolling mill and / or - seen in the conveying direction - downstream of the rolling mill, a temperature of the strip or sheet - seen in the conveying direction - being measured upstream of the last rolling stand of the rolling mill.
- This process includes the following steps:
- step (iii) Adapting (controlling, preferably regulating) at least one process parameter for the strip or sheet, taking into account the comparison of the calculated temperature with the predetermined reference value according to step (ii), the strip or sheet being processed, heated or cooled as a function of this process parameter .
- the at least one process parameter which according to step (iii) of the method according to the invention is adjusted (eg controlled or regulated), taking into account or depending on the calculated temperature at the exit of the last roll stand of the rolling mill and the comparison made for this purpose, can be act the temperature of an inter-stand cooling and / or a pre-strip cooling (influenced by the amount of cooling water supplied), which - viewed in the conveying direction of the strip or sheet - are arranged upstream of the last roll stand or the rolling mill.
- the at least one process parameter can also be the temperature of an inductive heater and / or a furnace, which - viewed in the conveying direction of the strip or sheet - are arranged upstream of the rolling mill.
- the process parameters controlled or regulated according to the invention can also be the strip speed at which the strip or sheet metal is transported through the rolling mill.
- it can be The process parameter is also the operating position of a heat insulation hood upstream of the rolling mill, seen in the conveying direction (F), the heat insulation hood being opened or closed in step (iii) taking into account the comparison in step (ii) relative to the strip or sheet metal.
- the above-mentioned variants for the method according to the invention allow the temperatures of a strip or sheet metal to be set or influenced in a targeted manner during its folding position.
- the process parameter is the temperature of a cooling device - then the technical implementation in the associated system for the production or processing of a strip or sheet metal via the amount of coolant supplied and / or the Number of active or switched-on cooling zones or spray nozzles is reached.
- the invention is based on the essential knowledge that with the help of the calculation according to step (i) it is possible to determine a process parameter, e.g. in the form of the temperature for the strip or sheet metal, directly at the exit of the last roll stand of the rolling mill, in particular also for the case that A rapid cooling device connects there.
- This calculated temperature can preferably be a surface temperature of the strip or sheet metal.
- a cooling water supply can then be controlled, preferably regulated, so that the temperature of the strip or sheet metal at the exit of the last rolling stand of the rolling mill reaches this predetermined reference value.
- step (ii) it is possible to adjust (ie control) the cooling water supply for the strip or sheet in other areas of a system with which the metallic strip or sheet is produced, taking into account the comparison according to step (ii) or to regulate), for example with an intermediate stand cooling - viewed in the conveying direction - arranged upstream of the last roll stand, with a - viewed in the conveying direction - arranged laminar cooling device downstream of the last roll stand of the rolling mill, and / or with a - viewed in the conveying direction - immediately downstream of the last Roll stand of the rolling mill arranged rapid cooling device.
- the temperature calculation model that is used in step (i) represents a preferably dynamic temperature control model or program.
- the calculation is carried out using a finite difference method.
- This model can be used, among other things, to determine the temperature distribution as a function of the process conditions in a particular section of the system with which a metallic strip or sheet is manufactured or processed.
- This model or program can also be used for control purposes in a cooling zone of a system with which a metallic strip or sheet is produced.
- the (surface) temperature of the strip can be used as a control variable or sheet metal use, which is then determined computationally at the exit of the last roll stand of the rolling mill on the basis of or proceeding from the temperature of the strip or sheet measured upstream of the last roll stand of the rolling mill, for example with the help of a pyrometer.
- the model / program calculates the amount of water required to achieve these values / parameters in a respective cooling zone. The results are immediately visualized and updated with each new cyclical calculation. In this sense, there is an online calculation and control.
- the temperature distribution in the system ie in the section of the strip or sheet that is between the point at which the temperature is measured upstream of the last roll stand of the rolling mill and the output of the last rolling stand is located
- the Fourier see 'heat equation are determined, which presents itself as follows: in which:
- T the calculated absolute temperature in Kelvin
- Phase transition liquid-solid means released energy of the system.
- the temperature distribution in the system ie in the section of the strip or sheet that is between the point at which the temperature is measured upstream of the last roll stand of the rolling mill and the Exit of the last roll stand
- a total enthalpy can be determined as the free molar total enthalpy (H) of the system by means of the Gibbs energy (G) at constant pressure (p), according to the equation: in which:
- T the absolute temperature in Kelvin
- the Gibbs energy (G) of the entire system as the sum of the Gibbs energies of the pure phases and their phase proportions are determined according to the equation: in which:
- G the Gibbs energy of the system
- f ' the Gibbs energy share of the respective phase or of the respective phase share in the overall system
- G ' the Gibbs energy of the respective pure phase or the respective phase fraction
- selected cooling zones of a system with which a metallic strip or sheet is manufactured or processed can be controlled or regulated in a targeted manner with regard to the supplied coolant quantities.
- the method according to the invention is characterized in that at least one cooling area of such a system is controlled or regulated by means of the temperature calculation model embodied as a metallurgical process model.
- the temperature profile in the named system of the strip or sheet ie in the section of the strip or sheet that is between the point at which the temperature is upstream of the last roll stand of the rolling mill is measured, and the output of the last roll stand is located) depending on the material, with the aim of thereby precisely calculating the temperature of the strip or sheet at the output of the last roll stand of the rolling mill.
- the invention therefore also provides that the temperature profile in the material block or material section is determined and set as a function of the material by means of the temperature calculation model.
- the use of the method or the calculation method is particularly suitable for performing this online and for controlling the manufacturing process for the strip or sheet metal.
- the use is therefore further characterized in that the above-mentioned temperature calculation model is used not only for online determination of the temperature of the strip or sheet at the exit of the last roll stand of the rolling mill, but also to control at least one cooling zone of a system used to produce such a strip or sheet.
- Figure 1 shows the Gibbs energy for pure iron
- FIG. 2 a (constructed) phase diagram with Gibbs energies
- FIG. 3 the course of the total enthalpy according to Gibbs for a low-carbon steel
- FIG. 4 shows a basically simplified side view of a system with which a metallic strip or sheet according to an inventive
- Figure 5 shows a temperature profile for the strip or sheet metal over the length of the
- FIG. 4 A preferred embodiment of a method according to the invention for producing a metallic strip or sheet 1 is explained below with reference to FIGS. At this point it is noted separately pointed out that the drawing in FIG. 4, FIG. 6 and FIG. 7 is only shown in a simplified manner and in particular without a scale.
- a temperature calculation model is used with which a temperature of the produced metallic strip or sheet 1 at an outlet of a last roll stand of a rolling plant can be calculated in a targeted manner.
- the basis of the temperature calculation is Fourier's heat equation (1), in which Cp represents the specific heat capacity of the system, l the thermal conductivity, p the density and s the spatial coordinate. T indicates the calculated temperature.
- Q on the right takes into account the energies released during the phase transition (equation 2). In the transition from liquid to solid, this term characterizes the heat of fusion, f s indicates the degree of phase transformation.
- the total enthalpy Fl or the molar enthalpy of a material area or material section can be calculated using the Gibbs energy as follows (3): with the molar Gibbs energy G of the system.
- the Gibbs energy of the overall system can be calculated using the Gibbs energies of the pure phases and their phase proportions
- Equation (4) the terms each correspond to a single element energy, a contribution for the ideal mixture and a contribution for the non-ideal mixture and the magnetic energy (equation 7). If the Gibbs energy of the system is known, the molar specific heat capacity can be calculated from this:
- Figure 1 shows the representation of the Gibbs energy for pure iron. It can be seen from this that the individual phases ferrite, austenite and the liquid phase assume a minimum for a certain characteristic temperature range at which these phases are stable.
- FIG. 3 shows the course of the total enthalpy according to Gibbs for a low-carbon steel as a function of temperature. In addition, the solidus and liquidus temperatures are shown in the picture.
- FIG. 4 shows, in a fundamentally simplified manner, a side view of a system 10 which is set up for the application of the method according to the invention and with which a strip or sheet metal 1 is produced or processed in a conveying direction F.
- the installation 10 comprises a multi-stand rolling mill 11 which, in the example shown here, has a first rolling stand 12, a central rolling stand 13 and a last rolling stand 14.
- a rapid cooling device 16 is arranged, on which further cooling in the form of a laminar cooling device 18 is included.
- a reel 20 is provided with which a finished strip 1 can be wound up.
- an intermediate stand cooling system which is not designated in any more detail, is provided for the rolling mill 11.
- an arrow “F” designates a conveying direction (from left to right in the image area) in which a strip or sheet 1 is moved in the system 10 or the rolling mill 11 with the mentioned rolling stands 12 -14 passes.
- the system 10 is equipped with several temperature measuring devices in order to determine the temperature of the strip or sheet metal at various points.
- These temperature measuring devices include: a first pyrometer P1, which - viewed in the conveying direction F - is arranged upstream of the first roll stand 12; a second pyrometer P2, which is arranged between the second roll stand 13 and the last roll stand 14 (and thus - as seen in the conveying direction F - upstream of the last roll stand 14); a third pyrometer P3 which - viewed in the conveying direction F - is arranged between the rolling mill 11 and the laminar cooling device 18; and a fourth pyrometer P4 arranged between the laminar cooler 18 and the reel 20.
- a temperature T2 is measured, which is the strip or sheet 1 before it enters the last roll stand 14.
- T1 and T4 are referred to below as T1, T3 and T4.
- the system 10 further comprises a computing and control device, hereinafter referred to only briefly as the control device, which is designated by “100” in FIG. 4 and symbolized in simplified form in the form of a rectangle.
- the control device 100 is equipped with the temperature calculation model.
- the temperature calculation model can have a DTR or DSC (dynamic temperature control / dynamic solidification control) control or be based on it. The calculation is carried out using a finite difference method.
- the vertical arrows that are shown in the illustration of FIG. 4 between the system 10 and the rectangle for the control device 100 symbolize the interactions between individual components of the system 10 and the control device 100.
- the arrows pointing upwards illustrate that the temperatures measured in each case by means of the pyrometers P1-P4 are input into the control device 100 and processed therein by means of signals.
- the arrows pointing downwards symbolize that the assigned components of the system 10 can be controlled or regulated by the control device 10 - this relates to the inter-stand cooling (between the first roll stand 12 and the central roll stand 13), the last roll stand 14, the rapid cooling device 16 and / or the laminar cooling device 18, for example in relation to the supply of a quantity of coolant to these
- a temperature TFM is then computationally determined based on the temperature T2, which was measured with the second pyrometer P2 upstream of the last roll stand 14 and entered into the control device 100 as explained Strip or sheet 1 is present directly at the exit A of the last roll stand 14.
- This calculation is carried out according to the finite difference method for a system of the strip or sheet 1, which is carried out through the material section of the strip or sheet 1 between the point at which the second pyrometer P2 is arranged and the output A of the last roll stand 14 is formed.
- the Fourier heat equation is solved to calculate this temperature profile or the temperature TFM.
- the boundary conditions in the rolling mill 11 eg temperature output both to air via radiation and convection and to the rolls of the last roll stand 14
- the cooling section temperature output to water cooling, air and roller table
- the development of heat caused by phase transformation which can arise either in the rolling mill 11 or in the cooling section.
- the different temperatures T1-T4 that are set along the length of the system 10 for a strip or sheet 1 produced therewith are shown in the diagram of FIG. 5 with a corresponding curve shape.
- the computer-determined temperature TFM (at the output A of the last roll stand 14) and the cooling rates CR23 and CR 34 already explained above are also identified here.
- a cooling water supply for the strip or sheet metal 1 is then possibly provided by means of the control device 100 appropriately adapted, ie controlled or regulated.
- Such a control (or regulation) of the cooling water supply can take place for the purpose that a temperature of the strip or sheet 1 at the output A of the last roll stand 14 is actually named in accordance with the predetermined reference value TFM ref , and / or that in particular the further temperatures T3 (for pyrometer P3) and / or T4 (for pyrometer P4) can be adapted accordingly.
- FIG. 6 shows a further embodiment of the system 10, in which, compared to the embodiment of FIG. 4, the components inductive heating 26, furnace 28 and / or heat insulating hood 30 are additionally provided.
- these components 26, 28, 30 - viewed in the conveying direction F of the strip or sheet - are each arranged upstream of the rolling mill 11, wherein the strip or sheet 1 can be guided through these components.
- thermal insulation hood 30 With regard to the mode of operation of the thermal insulation hood 30, it is pointed out separately that this represents a device with which the strip or sheet metal 1 is thermally insulated.
- the degree of thermal insulation for the strip or sheet metal 1 on a roller table can be influenced by opening or closing the thermal insulation hood 30. Activation by means of the control device 100 opens or closes the thermal insulation hood 30 accordingly, or also transfers it to an intermediate position, the temperature for the strip or sheet 1 being influenced as a function of the respective position of the thermal insulation hood 30 11.
- a pre-strip cooling 24 is provided for the system 10 - viewed in the conveying direction F of the strip or sheet 1 - upstream of the rolling mill 11, which, as indicated by the symbolic arrow, is also controlled or regulated by the control device 100 can be.
- an amount of coolant for this pre-strip cooling 24 is then controlled or regulated in order to specifically influence or reduce the temperature of the strip or sheet 1.
- “22” symbolizes interframe cooling, which can also be controlled or regulated by means of the control device 100, namely by adapting the amount of coolant supplied and / or by the number of spray nozzles used.
- reference values T1 ref, T2ref, T3ref, T4ref to be specified in the control device 100 or for the temperature calculation model stored therein also for the temperatures T1, T2, T3 and T4 on the basis of a structure model to achieve optimal properties.
- the reference values would have to be determined on the basis of empirical values or measurement and production data. This can be, for example, models based on neural networks, the kriging algorithm or the like.
- the temperature calculation can be carried out using the Gibbs energies and the enthalpy. In this regard, reference may be made to the explanations given above for equations (1) - (8).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019203088.2A DE102019203088A1 (en) | 2019-03-06 | 2019-03-06 | Process for the production of a metallic strip or sheet |
PCT/EP2020/050975 WO2020177937A1 (en) | 2019-03-06 | 2020-01-16 | Method for producing a metallic strip or plate |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3934822A1 true EP3934822A1 (en) | 2022-01-12 |
EP3934822B1 EP3934822B1 (en) | 2022-09-07 |
Family
ID=69172814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20700907.7A Active EP3934822B1 (en) | 2019-03-06 | 2020-01-16 | Method for producing a metallic strip or plate |
Country Status (7)
Country | Link |
---|---|
US (1) | US11858020B2 (en) |
EP (1) | EP3934822B1 (en) |
JP (1) | JP7239726B2 (en) |
CN (1) | CN113518672B (en) |
DE (1) | DE102019203088A1 (en) |
PL (1) | PL3934822T3 (en) |
WO (1) | WO2020177937A1 (en) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3604234A (en) | 1969-05-16 | 1971-09-14 | Gen Electric | Temperature control system for mill runout table |
JPS6156722A (en) | 1984-08-28 | 1986-03-22 | Kawasaki Steel Corp | Rapid cooling method nearby outlet side of hot finish rolling mill of hot rolled steel plate |
DE19963185A1 (en) * | 1999-12-27 | 2001-07-12 | Siemens Ag | Method and device for cooling a hot-rolled metal strip emerging from a roll stand |
DE10156008A1 (en) * | 2001-11-15 | 2003-06-05 | Siemens Ag | Control method for a finishing train upstream of a cooling section for rolling hot metal strip |
JP4029871B2 (en) * | 2004-07-22 | 2008-01-09 | 住友金属工業株式会社 | Steel plate cooling device, hot-rolled steel plate manufacturing apparatus and manufacturing method |
CN101745549B (en) * | 2008-12-11 | 2013-06-19 | 宝山钢铁股份有限公司 | Method for controlling steel feeding temperature of band steel of hot strip mill |
JP4735785B1 (en) * | 2009-11-24 | 2011-07-27 | 住友金属工業株式会社 | Hot rolled steel sheet manufacturing method and hot rolled steel sheet manufacturing apparatus |
WO2011111663A1 (en) * | 2010-03-11 | 2011-09-15 | 住友金属工業株式会社 | Hot-rolled steel sheet manufacturing method and manufacturing device |
DE102013019698A1 (en) | 2013-05-03 | 2014-11-06 | Sms Siemag Ag | Method for producing a metallic strip |
US10040107B2 (en) * | 2014-02-04 | 2018-08-07 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Temperature control apparatus of hot-rolling mill |
JP6447710B2 (en) * | 2015-03-26 | 2019-01-09 | 東芝三菱電機産業システム株式会社 | Temperature calculation method, temperature calculation device, heating control method, and heating control device |
JP6435234B2 (en) * | 2015-05-20 | 2018-12-05 | 株式会社日立製作所 | Hot roll finishing mill outlet temperature control device and control method thereof |
DE102016200077A1 (en) | 2015-11-30 | 2017-06-01 | Sms Group Gmbh | Method and system for controlling and / or controlling heating of a cast or rolled metal product |
-
2019
- 2019-03-06 DE DE102019203088.2A patent/DE102019203088A1/en not_active Withdrawn
-
2020
- 2020-01-16 PL PL20700907.7T patent/PL3934822T3/en unknown
- 2020-01-16 US US17/436,518 patent/US11858020B2/en active Active
- 2020-01-16 JP JP2021550062A patent/JP7239726B2/en active Active
- 2020-01-16 EP EP20700907.7A patent/EP3934822B1/en active Active
- 2020-01-16 CN CN202080018463.4A patent/CN113518672B/en active Active
- 2020-01-16 WO PCT/EP2020/050975 patent/WO2020177937A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102019203088A8 (en) | 2020-10-29 |
US20220176429A1 (en) | 2022-06-09 |
DE102019203088A1 (en) | 2020-09-10 |
CN113518672B (en) | 2023-09-01 |
WO2020177937A1 (en) | 2020-09-10 |
CN113518672A (en) | 2021-10-19 |
EP3934822B1 (en) | 2022-09-07 |
US11858020B2 (en) | 2024-01-02 |
PL3934822T3 (en) | 2022-11-21 |
JP7239726B2 (en) | 2023-03-14 |
JP2022522181A (en) | 2022-04-14 |
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