EP2841215A1 - Angleichung von bandeigenschaften durch breitenabhängige vorbandkühlung - Google Patents
Angleichung von bandeigenschaften durch breitenabhängige vorbandkühlungInfo
- Publication number
- EP2841215A1 EP2841215A1 EP13718316.6A EP13718316A EP2841215A1 EP 2841215 A1 EP2841215 A1 EP 2841215A1 EP 13718316 A EP13718316 A EP 13718316A EP 2841215 A1 EP2841215 A1 EP 2841215A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- values
- rolling
- metal strip
- strip
- cooling device
- 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
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
-
- 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
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
- C21D8/0447—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment
- C21D8/0463—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment following 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
- B21B1/22—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
-
- 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
- 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
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
-
- 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
- B21B38/08—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Definitions
- the present invention relates to a production method for a metal strip
- the present invention further relates to a Computerpro ⁇ grams, the machine comprises code can be executed directly by a control computer for a rolling mill for rolling a metal strip and its processing effected by the control computer, the control computer operates the rolling mill according to such a manufacturing method.
- the present invention further relates to a control computer for a rolling mill for rolling a metal strip.
- the present invention further relates to a rolling mill for rolling a metal strip
- the rolling mill has a roughing mill in which the metal strip is pre-rolled
- the rolling mill has a cooling device in which the metal strip is cooled after the rough rolling
- the rolling mill has a finishing train with a plurality of rolling mills, in which the metal strip is finish-rolled after cooling,
- the mill has a control computer.
- the slab is thicker on one side than on the other. This may be the case in particular when so-called
- Slit slabs are used. Slit slabs are slabs in which a cast slab is split once again after continuous casting. If the cast slab is slightly thicker in the middle than at the edge, the two slit slabs are thicker on one side than on the other.
- the strength is generally greater on one side of the slab than on the other.
- Cooling device in which the coolant (usually water) can be adjusted individually across the width.
- a rectangular cooling valve may be divided into three areas, namely a trapezoidal part in the middle and two triangular parts left and right. Each of the three parts is independently controllable with an individual amount of water.
- the left side can be cooled more than the right side and vice versa.
- any such temperature decrease which is composed of a plurality of straight pieces, can be achieved with such a cooling device within the scope of the adjustment limits.
- a cooling device is state of the art.
- the object of the present invention is to provide possibilities to further develop the above-mentioned objects in such a way that in a simple and reliable manner a metal strip with homogeneous properties seen over the bandwidth can be produced.
- expected values of a second property of the metal strip are determined spatially resolved in the bandwidth direction by means of the rolling model for a location located at or behind the first rolling stand of the finishing train,
- the procedure of the invention is particularly advantageous because in the and behind the first stand of the finishing line - especially after the last stand of the finishing line - a spatially resolved in a relatively simple and reliabil ⁇ sige way over the bandwidth actual values of a third property of the metal strip can be captured, which depend on the actual values of the second property or vice versa.
- the quality of the rolling model can therefore be easily checked and, if necessary, tracked (adapted).
- the first property of Metallban ⁇ des the temperature of the metal strip. Furthermore, no further property of the metal strip is used as the first natural ⁇ economy in the simplest case of the temperature of the metal strip out. In some cases it may be sufficient to make global statements about the entire length of the metal strip. In this case it is possible to record the first properties only once and to determine the expected values only once. The control of the cooling device can be done uniformly over the entire band length in this case.
- the initial values are respectively detected for a strip point of the metal strip that the driving ⁇ values of the cooling device for each strip point ermit- telt be that the strip points on their way from the pre ⁇ rolling mill by the cooling means and the roll stands the finishing mill are tracked and that the cooling device is each driven at the time of passage of the respective band ⁇ point with the determined for the respective band point arrival tax values.
- the driving ⁇ values of the cooling device for each strip point ermit- telt be that the strip points on their way from the pre ⁇ rolling mill by the cooling means and the roll stands the finishing mill are tracked and that the cooling device is each driven at the time of passage of the respective band ⁇ point with the determined for the respective band point arrival tax values.
- the driving ⁇ values of the cooling device for each strip point ermit- telt be that the strip points on their way from the pre ⁇ rolling mill by the cooling means and the roll stands the finishing mill are tracked and that the cooling device is each driven at the time of passage of the respective band ⁇ point with the determined for the respective
- Numerical values are between 200 and 500 tape points. In individual cases, up to 1000 band points can be utilized.
- the third property of the metal strip may include, for example, the temperature of the metal strip on its surface and / or its thickness.
- the second property is the temperature of the metal strip.
- the third properties for the band points are each detected when rolling the respective band point in the respective rolling stand of the finishing train and
- the second property of the metal strip is the material strength. It is possible that the place for the expected values he ⁇ averages are at least one further cooling device for ⁇ ordered. In this case, it is possible for the further cooling device to be spatially resolved in the bandwidth direction in such a way that the expected values of the second characteristic of the metal strip in the bandwidth direction are matched to one another.
- At least one further cooling device nachge is orders.
- the at least one further cooling device can be controlled so as to be spatially resolved in the bandwidth direction in such a way that the temperatures of the metal strip are aligned with one another in the bandwidth direction.
- the location for which the expected values are determined lies behind the last mill stand of the finishing train.
- the inventive object is also achieved by a Compu ⁇ terprogramm of the type mentioned.
- the computer program is designed in this case such that the Ab ⁇ processing of the computer program effected by the control computer, the control computer operates the rolling mill according to a inventions to the invention manufacturing process.
- the task is further solved by a correspondingly programmed control computer for the rolling mill.
- the object is further achieved in that a rolling mill of the type mentioned is configured by
- control computer implements a rolling model to which the detected initial values are fed
- control computer dissolved stationary ⁇ means of the roll model in tape width direction determines the drive values of the cooling device such that the expected values in Bandwidth direction spatially resolved nominal values of the second property are approximated
- control computer controls the cooling device according to the determined control values.
- a metal strip 1 is to be rolled in a rolling mill.
- the metal strip 1 may, for example, from steel, aluminum ⁇ minium, brass, copper or other metal.
- the rolling mill For rough rolling of the metal strip 1, the rolling mill has a roughing mill 2.
- the roughing mill 2 can be Purgerüstig currentlybil ⁇ det. Often, however, the roughing mill 2, as shown in FIG 1 on a single mill stand, in which the metal strip 1 is reversibly rolled.
- the rolling mill furthermore has a cooling device 3. In the cooling device 3, the metal strip 1 is cooled after the Vorwal ⁇ zen.
- the cooling device 3 is designed in such a way that it can cool the pre-rolled metal strip 1 in a spatially resolved manner in the direction of the strip width, ie that the cooling effect varies seen across the strip width. For example, the
- Cooling device 3 as shown in FIG 2 have a plurality of juxtaposed spray nozzles 4, which are individually controlled and in the bandwidth direction gese- each act on a portion of the metal strip 1.
- the cooling device 3 as shown in FIG 3 - as known in the art in heavy plate mills - have two triangular outlet 5 and a trapezförmige outlet 6, which are individually controllable via a respective valve 7.
- Other embodiments are possible.
- the rolling mill also has a finishing train 8.
- the finishing train 8 has a plurality of rolling stands 9.
- the number of rolling stands 9 can be as needed. As a rule, five to eight rolling stands 9 are present, usually six or seven rolling stands 9. For reasons of clarity, only the first rolling stand 9 and the last rolling stand 9 are shown in FIG. In the rolling stands 9 of the finishing train 8, the metal strip 1 is finished rolled after cooling in the cooling device 3.
- the last rolling mill 9 of the finishing train 8 is followed by a temperature measuring station 10.
- the surface temperature TO of the finished rolled metal strip 1 is detected by measurement.
- the finishing train 8 is further downstream of a cooling section 11, in which the finished rolled metal strip 1 is subjected to a defined cooling process.
- the cooling section 11 has for this purpose a plurality of further cooling devices 12, which can be controlled individually or in groups. For reasons of clarity, only a few of the further cooling devices 12 are shown in FIG.
- the finishing train 8 is usually a reel ⁇ arrangement 13 downstream.
- the reel assembly 13 has at least one reel 14, by means of which the metal strip 1 is reeled to a collar 15. If the cooling section 11 is present, the reel device 13 of the cooling section 11 is arranged downstream. The cooling section 11 is thus located in this case, between the finishing mill 8 and the Haspelanord ⁇ voltage. 13
- the rolling mill 2 is controlled by a control computer 16.
- the control computer 16 is programmed with a computer program 17.
- the computer program 17 includes machine code 18 which can be processed directly by the control computer 16.
- the processing of the machine code 18 by the control computer 16 causes the control computer 16 to control the rolling mill according to a manufacturing process.
- the STEU ⁇ errechner 16 controls the rough rolling mill 2, the cooling device 3 and the finishing mill 8.
- 16 can also control other components of the rolling mill, the control computer, for example egg ⁇ NEN the rough rolling mill 2 upstream furnace 19 or the cooling section 11, and optionally also the reel assembly 13.
- the control computer 16 may be a single control computer. But it is also possible that the control computer 16 consists of several, data-technically interconnected individual computers, each of which takes on only one or more specific subtasks.
- the control computer 16 may consist of a single computer for the control of the aggregates, a single computer for the execution of arithmetic operations such as model calculations and a single computer for receiving operator inputs and displaying results. Another or additional distribution, for example with regard to the control of system components is possible.
- the control computer 16 may alternatively or additionally be divided into a respective individual computer for controlling the rolling stand 2, the cooling device 3 and the finishing train 8.
- the rolling model 20 can be For example, based on mathematical-physical equations.
- the equations may in particular be algebraic equations and / or differential equations.
- the rolling model 20 determined on the basis of input data of the metal strip 1 in connection with influences to which the metal strip 1 is subjected to the resultant rolling, in particular its expected temperature and / or an expected Materialfestig ⁇ ness such as tensile strength, yield strength, yield strength, and the like more.
- the input data of the metal strip 1 are, for example, its chemical composition, its thickness and its temperature.
- the influences which are exerted on the Me ⁇ tallband 1 for example, the individual rolling processes in the rough rolling mill 2, and in the roll stands of the finishing train 9 8 and the cooling in the cooling means. 3
- a step S2 the metal strip 1 is pre-rolled in the roughing mill 2.
- the rough rolling is performed under control of the control ⁇ computer 16.
- the control computer 16 detects in a step S3, initial values of a first property of the metal strip 1.
- the control computation ⁇ ner 16 detects the initial values in the tape width direction stationary ⁇ dissolved.
- at least two values are detected, namely for the left and the right side of the metal strip 1 or for the center and the lateral outer area of the metal strip 1. It is also possible to detect more than two values.
- the detection of the initial values takes place at the latest at the time when the metal strip 1 enters the cooling device 11. It can also be done sooner, for example during roughing or before rough rolling.
- the initial values as such may be determined as needed.
- the initial values - see FIG. 5 - may be the temperature T of the metal strip 1 as a function of the strip thickness d (ie the temperature as a function of the location in the strip thickness direction). These initial values are usually recorded before roughing.
- it can - see FIG 6 - in addition to the temperature T as Function on the strip thickness d to the strip thickness d of the incoming in the roughing mill 2 metal strip 1 and the rolling forces occurring during roughing FV act.
- These values are recorded - at least in part - during rough rolling of the metal strip 1. If the strip thickness d and the rolling forces FV during pre-rolling are detected, these values are also detected spatially resolved in the bandwidth direction.
- the step S2 may be executed simultaneously with the step S3 or after the step S3.
- Mixed forms can also make sense.
- the control computer 16 performs the initial values detected in egg ⁇ nem step S4, the roll 20 to model.
- the control computer 16 to the roll model 20 in step S4 continues Stichplanda ⁇ th of the finishing mill to 8.
- the keyway data include Sollwalzspalte, Sollstichab66, expected rolling forces, in the rolling operations before and / or behind the corresponding rolling stand 9 occurring trains and the like.
- the stitch plan data can alternatively be spatially resolved over the bandwidth uniformly or over the bandwidth.
- the pass schedule data may alternatively be symmetrical or asymmetrical Toggle tisymmetrisch.
- the control computer 16 sets activation values S for the cooling device 3 in a step S5.
- the control values S are dissolved in Bandbrei ⁇ tencardi.
- the control computer 16 determines by means of the rolling model 20 in a step S6 Erwartungswer ⁇ te for a second property of the metal strip 1.
- the ermit ⁇ telten expectation values depend therefore - at least among other ⁇ rem - by the locally korrespondieren- in the strip width direction to the initial values and the locally corresponding in the bandwidth direction control values S of the cooling device 3 from.
- the control computer 16 determines the expected values for a location which is at the first stand 9 of the finishing train 8 or behind, for example, for the location of the first, second, etc. roll stand 9 of the finishing train 8 or for a place hin ⁇ ter the finishing train 8, ie behind the last mill stand 9 of the finishing train 8.
- the corresponding location of the temperature measuring station 10 may be ,
- the control computer 16 determines the expected values in the band ⁇ width direction spatially resolved. For example, the STEU ⁇ errechner 16, the temperature T of the metal tallbandes 1 or a mechanical property of the Metallban ⁇ of 1 as the second property - for example, a material strength - determined. If the control computer 16, the temperature T is determined, it detects it 16 determines mechanical properties typically used for the place of Temperaturmessplat ⁇ zes 10. If the control computer, it determines it as a rule for the location of the rolling stands 9 of the finishing mill 8, or the places several ⁇ rer rolling stands of the finishing train 9. 8
- the control computer 16 compares the determined expected values in a step S7 with nominal values of the second properties of the metal strip 1.
- the nominal values can be uniform across the bandwidth. Alternatively, they can vary across the bandwidth seen, so be spatially resolved. Regardless of whether the setpoint values vary over the bandwidth or not, the control computer 16 carries out the comparison, however, in a spatially resolved manner in the bandwidth direction.
- the control ⁇ calculator 16 varies in a step S8, the control values S.
- the STEU ⁇ errechner 16 performs the varying by such that the expectation value - a spatially resolved in the strip width direction - are approximated to desired values.
- control computer 16 it is possible for the control computer 16 to immediately set the activation values S in such a way that the expected values are brought as close as possible to the desired values. Alternatively, it is possible that the steps S6, S7 and S8 are iterated.
- the control computer 16 controls the cooling device 3 in a step S9 in accordance with the determined activation values S.
- the control computer 16 detects according to FIG 4 in a step S10 at the location for which he has determined the expected values of the second property, actual values of a third property of the metal strip 1.
- the control computer 16 shown in FIG 5 at the tempera - Turmessplatz 10 detect the temperature TO of the metal strip 1 at his ⁇ ner surface.
- control computer 16 in finish rolling occurring before and / or behind the rolling stands 9 of the finishing train 8 trains Z occurring in the rolling stands 9 of the finishing mill 3 rolling forces F and occurring in the rolling stands 9 of the finishing line 8 jobs s capture.
- the actual values of the detected third property depend on actual values of the second property.
- the temperature depends TO the metal strip 1 on its surface it ⁇ clearly on the temperature T of the metal strip 1 from. Also hang the rolling forces F from example, from the Materialver ⁇ fixing and the temperature T.
- the control computer 16 it is possible for the control computer 16 to adapt the rolling model 20 based on a comparison in a step S11, the expected values of the second property and the actual values of the third property being included in the comparison.
- the adaptation of the rolling model 20 can be oriented ⁇ staltet as needed.
- the tempera ture ⁇ T d as a function of the strip thickness as part of the rolling model 20 is determined.
- the determination rule for determining the temperature T as a function of the strip thickness d can be adapted.
- the adaptation takes place in the strip width direction in a spatially resolved.
- the initial values in the longitudinal direction of the Metallban ⁇ 1 seen without spatial resolution it is also sufficient to determine the expected values in the longitudinal direction of the metal strip 1 only once and, if appropriate, to carry out the adaptation only once per metal strip 1.
- each gene successes the detection of the initial values.
- each strip point corresponds to a 21 From ⁇ cut the metal strip 1, by the respective Trans ⁇ port speed v of the metal strip 1 is defined at the time of acquisition ⁇ point and the power stroke.
- the band points 21 may correspond to portions of the metal band 1 of predefined length, for example a length of 10, 15, 20,... Cm.
- the band points 21 may correspond to a predefined mass, for example 20, 30, 50, ... 100 kg.
- the cooling device 3 is driven in each case at the time of passing through the respective band point 21 with the control values S determined for the respective band point 21.
- the implementation of a tracking including the timely control of the individual devices 2, 3, 9 of the rolling mill is well known to those skilled in the art. Also this detection corresponding to the displacement monitoring for each strip point 21 is also the control of the rolling stands 9 of the finishing mill 8, it ⁇ follows in this case individually for each strip point 21. If actual values are recorded at least a third property of the metal strip 1. This applies regardless of whether the surface temperature TO, the rolling forces F, the rolling stand positions s, the trains Z, etc. are detected as actual values of the third property.
- further cooling means 12 be nachge ⁇ assigns. If at least one of the further cooling devices 12 can be controlled in a spatially resolved manner in the bandwidth direction, this activation can be carried out in such a way that the expected values of the second properties in the bandwidth direction are approximated to one another. This embodiment can be realized independently of what the second property of the metal strip 1 is.
- the temperature TO of the metal strip 1 can be detected at the location for which the expected values are determined, or spatially resolved behind this location in the bandwidth direction.
- the temperature measuring station 10 may be present regardless of whether the temperature T of the metal strip 1 or its material strength is used as a second property. In the former case, the
- Temperature detection usually at the location for which the expected values are determined. In the latter case, the temperature detection follows behind the location for which the expected values are determined. Because in this case, the expected values in the place of supply of at least one roll stand 9 determines the finishing mill 8, before the Tem ⁇ pera turmes place 10th In this case too, it is possible for at least one of the further cooling devices 12, that is to say a cooling device 12 of the cooling section 11, to be controllable in the direction of the bandwidth in a spatially resolved manner . In this case, the activation of the corresponding cooling device 12 can take place in such a way that the temperature T of the metal strip 1 is adjusted in the direction of the strip width.
- the present invention has many advantages.
- homogenization of material properties can be achieved by means of the width-dependent cooling of the metal strip 1 before the finish rolling.
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- 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)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13718316.6A EP2841215B1 (de) | 2012-04-27 | 2013-04-17 | Angleichung von bandeigenschaften durch breitenabhängige vorbandkühlung |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12165879 | 2012-04-27 | ||
| EP13718316.6A EP2841215B1 (de) | 2012-04-27 | 2013-04-17 | Angleichung von bandeigenschaften durch breitenabhängige vorbandkühlung |
| PCT/EP2013/057973 WO2013160166A1 (de) | 2012-04-27 | 2013-04-17 | Angleichung von bandeigenschaften durch breitenabhängige vorbandkühlung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2841215A1 true EP2841215A1 (de) | 2015-03-04 |
| EP2841215B1 EP2841215B1 (de) | 2016-05-18 |
Family
ID=48182895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13718316.6A Active EP2841215B1 (de) | 2012-04-27 | 2013-04-17 | Angleichung von bandeigenschaften durch breitenabhängige vorbandkühlung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2841215B1 (de) |
| CN (1) | CN104254408B (de) |
| WO (1) | WO2013160166A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019216261A1 (de) | 2019-07-02 | 2021-01-07 | Sms Group Gmbh | Verfahren zur Steuerung einer Kühleinrichtung in einer Walzstraße |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19963186B4 (de) * | 1999-12-27 | 2005-04-14 | Siemens Ag | Verfahren zur Steuerung und/oder Regelung der Kühlstrecke einer Warmbandstrasse zum Walzen von Metallband und zugehörige Vorrichtung |
| DE10156008A1 (de) * | 2001-11-15 | 2003-06-05 | Siemens Ag | Steuerverfahren für eine einer Kühlstrecke vorgeordnete Fertigstraße zum Walzen von Metall-Warmband |
| JP2008238241A (ja) | 2007-03-28 | 2008-10-09 | Kobe Steel Ltd | アルミニウム金属板の製造方法 |
| DE102007053523A1 (de) * | 2007-05-30 | 2008-12-04 | Sms Demag Ag | Vorrichtung zur Beeinflussung der Temperaturverteilung über der Breite |
| EP2280323A1 (de) * | 2009-07-08 | 2011-02-02 | Siemens Aktiengesellschaft | Steuerverfahren für eine Beeinflussungseinrichtung für ein Walzgut |
| JP5565200B2 (ja) | 2010-08-20 | 2014-08-06 | Jfeスチール株式会社 | 熱間圧延における仕上温度制御装置 |
-
2013
- 2013-04-17 EP EP13718316.6A patent/EP2841215B1/de active Active
- 2013-04-17 WO PCT/EP2013/057973 patent/WO2013160166A1/de not_active Ceased
- 2013-04-17 CN CN201380021835.9A patent/CN104254408B/zh active Active
Non-Patent Citations (1)
| Title |
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| See references of WO2013160166A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013160166A1 (de) | 2013-10-31 |
| CN104254408B (zh) | 2016-11-09 |
| CN104254408A (zh) | 2014-12-31 |
| EP2841215B1 (de) | 2016-05-18 |
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