EP3099430A1 - Kühlstrecke mit zweifacher kühlung auf eine jeweilige sollgrösse - Google Patents
Kühlstrecke mit zweifacher kühlung auf eine jeweilige sollgrösseInfo
- Publication number
- EP3099430A1 EP3099430A1 EP15700669.3A EP15700669A EP3099430A1 EP 3099430 A1 EP3099430 A1 EP 3099430A1 EP 15700669 A EP15700669 A EP 15700669A EP 3099430 A1 EP3099430 A1 EP 3099430A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- section
- control device
- rolling stock
- phase
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 260
- 239000002826 coolant Substances 0.000 claims abstract description 63
- 238000005096 rolling process Methods 0.000 claims description 98
- 238000011017 operating method Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 19
- 239000003507 refrigerant Substances 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241001387976 Pera Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000007668 thin rolling process Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0463—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
Definitions
- the present invention relates to an operating method for a cooling line for cooling a rolling stock
- portions of the rolling stock are first cooled in a first cooling phase by means of front cooling means of the cooling section with a liquid coolant during the passage of the cooling section, then not cooled in a subsequent to the first cooling phase second cooling phase with the liquid coolant and finally in one of the second cooling phase subsequent third cooling phase are cooled by means of rear cooling means of the cooling section again with the liquid coolant,
- a control device of the cooling section in each case receives an initial quantity of energy, which have the Ab ⁇ sections before passing through the cooling section, - wherein the control means further comprises a target energy ent ⁇ against takes
- control device determines based on the initial quantity of energy and the target energy a first desired coolant ⁇ running, with which the respective portion of the rolling stock is to be loaded in the first cooling phase,
- control means controls the front cooling means according to the first target coolant flow path, while the respective section of the rolling stock passes through the front cooling means.
- the present invention further relates to a Computerpro ⁇ program comprising machine code that is processable by a controller for a cooling section, wherein the execution of the machine code effected by the control means that the control means operates the cooling section according ei ⁇ nem such a method of operation.
- the present invention further relates to a control device for a cooling section, wherein the control device is programmed with such a computer program.
- the present invention further relates to a cooling section for cooling a rolling stock,
- said cooling section having front and rear cooling devices, by means of which a respective in-an effective range of the respective cooling device portion of the rolling material with a respective coolant quantity beaufschlag ⁇ bar,
- cooling section has a transport device, from which the rolling stock can be transported through the cooling section, so that the sections of the rolling stock pass through the effective areas of the cooling devices in succession,
- cooling section has such a control device on ⁇ which operates the cooling section according to such Be ⁇ operating method.
- Such an operating method is for example from the
- WO 2005/099 923 AI known operating method is carried out in the third cooling phase quenching of the rolling stock to a desired temperature or below.
- a hot strip mill or plate mill steel is provided ⁇ forth.
- the material properties of the rolling stock are adjusted by the there taking place cooling of the rolling stock.
- the time course of the cooling process the material properties achieved are fixed.
- the temporal cooling course is often prescribed as a time stamp ⁇ raturverlauf.
- a distribution of an amount of water according to a predetermined cooling strategy in conjunction with a temperature at the end of the cooling section is given. It is also possible a two-stage
- the operating method known from DE 10 2008 011 303 B4 works quite well even for steels with a high carbon content.
- a disadvantage of this method that the phase transformation can be controlled as such only suboptimal.
- the cooling is often not the ⁇ art determined that the phase conversion requires the shortest possible time. This is disadvantageous especially for relatively short cooling distances. If cooling provides a relatively high contribution to the overall cooling through the rolling surrounding air and by contact with the transport ⁇ roll of the cooling section, it is still difficult to keep the material properties constant.
- the object of the present invention is to provide possibilities by means of which an improved operation of the cooling section is possible.
- the object is achieved by an operating method for a cooling section with the features of claim 1.
- An operating method of the type called ge ⁇ is configured by
- control device determined based on an expected for each section in the second cooling phase enthalpy and the desired enthalpy a second desired coolant flow, with which the respective section of the rolling stock is to be acted upon in the third cooling phase, and
- control means controls the rear cooling means according to the second target coolant flow path, while the respective section of the rolling stock passes through the rear cooling means.
- the initial energy size and the target energy are temperatures. This procedure is the special ⁇ possible if a possible phase transition has not yet begun at the end of the first cooling phase. In any case, it is possible that the initial energy size and energy energy are enthalpies. In this case, however, the target energy is - although it is an enthalpy han ⁇ delt - one different from the Sollenthalpie size.
- control device determines the first setpoint coolant course in such a way that the respective section of the rolling stock is acted upon from the entry into the cooling section with the maximum possible amount of coolant, so that the first cooling phase ends as early as possible.
- There- by the length of the portion of the cooling section is mini ⁇ mized, which is required to achieve the target energy.
- the Steuereinrich- processing determines the second target refrigerant course such that the respective portion of the rolling stock up to the exit from the cooling section with the maximum possible amount of coolant be ⁇ is alsschlagt, so that the third cooling phase, as late as possible starts. This leaves the largest possible time span for carrying out the phase transformation.
- the rolling stock is transported by means of transport rollers through thedestre ⁇ bridge.
- the control means based on the target power or a Istenergy determined based on the target power and an actual first coolant course, and a chemical composition of the rolled stock a desired roller cooling curve for in a corresponding with the second cooling phase region determines the cooling section arranged transport rollers and cools these transport rollers according to the determined target roll cooling curve.
- the desired roll cooling history may be for a particular one of the transport rollers or a particular group of transport rollers as a simple binary (on-off) function of the time or location of the transport
- the desired roll cooling course will be determined such that the cooling of the transport rollers is turned off while the rolling passes through the corresponding area of the cooling section. In the remaining time, so while no rolling passes through the corresponding area of the cooling section, the transport rollers are actively cooled in this case.
- the cooling can be switched off shortly before the rolling stock reaches the appropriate range.
- the resulting adjustment range of the total cooling acting on the rolling stock can be further increased.
- the quality of the cooling can be improved. This is especially true when the cooling of the transport rollers is realized as external cooling, so that the coolant is injected from the outside onto the transport rollers.
- the transport rollers are only cooled if there is no rolling stock in the corresponding area of the cooling path.
- this Küh ⁇ ment be realized in that the transport rollers are acted upon by those cooling means with coolant, by means of which normally the rolling stock is acted upon with coolant.
- own cooling devices may be provided for the transport rollers.
- the controller determines the expected in the two ⁇ th cooling phase for the respective section En ⁇ enthalpy based on the initial energy size of the respective portion of the rolling stock and the actuation of the respective portion of the rolling material with an actual first coolant course.
- This provides a particularly reliable value for the expected enthalpy.
- control device for a cooling section with the features of claim 10.
- control device is programmed with a computer program according to the invention.
- a cooling section for cooling a rolling stock with the features of claim 11.
- He ⁇ invention has, according to the cooling section has a control device according to the invention, which operates the cooling line according to one he ⁇ inventive operating method.
- a rolling stock 1 is to be cooled in a cooling section 2.
- the rolling stock 1 is made of metal.
- the rolling stock 1 is a flat rolling stock, for example a metal strip, in particular a steel strip.
- it can be a heavy plate (usually also made of steel).
- the cooling section 2 is usually a rolling train - for example, a rolling mill tigides - downstream, in which the rolling stock 1 was warmed warge ⁇ .
- the mill on several roll ⁇ scaffolding.
- FIG. 1 for the sake of clarity, only one rolling stand 3 - for example the last rolling stand 3 of the rolling train - is shown.
- Tem ⁇ pera tower space 4 is often arranged to which a temperature T of the rolling stock 1 is detected.
- the temperature measuring station 4 is referred to below as the distinction of other, later introduced temperature measuring stations as an input-side temperature measuring station 4.
- the cooling section 2 has a plurality of transport rollers 5. By means of the transport rollers 5, the rolling stock 1 is transported through the cooling section 2. As a rule, at least some of the transport rollers 5 are driven.
- the transport rollers 5 in their entirety form a transport device, from which the rolling stock 1 is transported through the cooling section 2 at a transport speed v.
- the cooling section 2 also has a multiplicity of front cooling devices 6, middle cooling devices 7 and rear cooling devices 8.
- the cooling means 6 to 8 act in a respective active area on the rolling stock 1.
- the rolling stock 1 is (ge ⁇ more precisely, which exploiting Dende at this time, in the effective range of the respective cooling device 6 to 8 portion of the rolling guts 1 ) is acted upon by a respective amount of coolant of a liquid, mostly water-based coolant 9.
- the cooling section 2 also has a control device 10. Under control and control by the control device 10, the cooling section 2 is operated.
- the control device 10 is usually programmed with a computer program 11.
- the computer program 11 may be the Control device 10 are supplied for example via a data carrier 12, on which the computer program 11 is stored in machine-readable form (preferably in an exclusively machine-readable form, in particular in electronic form).
- the data carrier 12 can be configured as desired.
- the illustration in FIG 1, in which the disk 12 is shown as a USB memory stick, is only by way of example ⁇ .
- the computer program 11 comprises machine code 13, which can be processed by the control device 10.
- the processing of the machine code 13 by the control device 10 causes the control device 10 operates the cooling section 2 in accordance with a loading ⁇ operating method, which will be explained in more detail below in connection with FIG 2.
- the controller 9 receives first counter in a step Sl, an information about the chemical composition C ⁇ reduction of the rolling stock. 1
- the rolling stock 1 within the control device 9 is subdivided into a plurality of sections 14 in a step S2 (see FIG. 3).
- the sections 14 are only present virtually within the control device 9.
- the sections 14 may be determined, for example, by a predetermined length, by a predetermined mass or by a time clock. Other subdivisions are possible.
- the controller 10 takes a respective section 14, an initial quantity of energy EA against ⁇ ent.
- the controller 10 the initial energy quantity EA is specified as such.
- the control device 10 it is possible for the control device 10 to specify variables by means of which the control device 10 determines the initial energy quantity EA.
- the tax direction 10 are given a temperature. If the temperature is high enough, it can be easily assumed that the respective section 14 of the rolling stock 1 is completely in the austenite phase. In this case, directly the enthalpy can be determined as anfängli ⁇ che energy EA size without mare- res based on the temperature. It is also possible to specify the temperature and at least one phase portion and to determine the enthalpy based on the temperature and the at least one phase portion.
- the initial energy quantity EA with a jewei ⁇ term thermal energy corresponds to the initial energy quantity EA with a jewei ⁇ term thermal energy, which has the respective section 14 before passing through the cooling section 2.
- EA size for example, a detected at the input-side temperature measuring station 4 temperature T of the corresponding portion 14.
- EA is optionally additionally taken into account to ⁇ for temperature T and the phase state of the corresponding section 14 in the initial energy quantity.
- the control device 10 also receives a target energy E1 * and a target enthalpy E2 * for the corresponding section 14.
- the desired energy El * is of the same type as the initial energy quantity EA.
- the target energy El * is also a temperature.
- the target energy El * is also an enthalpy.
- the target energy El * is in any case a variable different from the target enthalpy E2 *.
- the target ⁇ enthalpy E2 * is always an enthalpy in the result.
- the desired enthalpy E2 * alternatively directly by specifying an enthalpy or indirectly by specifying a
- the target energy El * indicates which Istenergy the El ent ⁇ speaking portion 14 of the rolling material 1 on the end of a first cooling phase I (see FIG 4) is intended to have.
- the desired enthalpy E2 * indicates which actual enthalpy E2 the corresponding section 14 of the rolling stock 1 should have at the end of a third cooling phase III (see FIG. 4).
- the first and the third cooling phase I, III are separated according to FIG 4 by a second Abkühl ⁇ phase II. However, the second cooling phase II follows directly on the first cooling phase I. Similarly, the third cooling phase III follows directly on the second cooling II.
- the control device 10 determines a first desired coolant path Kl *.
- the first Sollkühlsch- course Kl * indicates which amount of coolant the jeweili ⁇ ge section 14 of the rolling stock 1 in the first cooling phase I to be acted upon.
- the control device 10 determines the first desired coolant course K1 * based on the initial energy quantity EA and the target energy E1 *.
- the determination of ER follows such that a Istenergy El from the corresponding ⁇ section 14 of the rolling material 1 corresponds at the end of the first cooling phase I as well as possible with the target energy El *.
- the determination of the first desired coolant path Kl * by the control device 10 can take place as required.
- the controller determines the first target refrigerant course Kl * such that the respective portion 14 of the rolling material 1 from the occurrence is loaded in the cooling section 2 with the ma ⁇ ximal possible amount of coolant until the total required amount of refrigerant of the first Abkühlpha ⁇ se I to the corresponding section 14 is applied. Since ⁇ is achieved by that the first cooling phase I ends as soon as possible.
- the corresponding procedure is indicated in FIG. 4 by an arrow A which is intended to indicate the displacement of the end of the first cooling phase I to the earliest possible point in time.
- the control device 10 controls the front cooling devices 6 in accordance with the determined first desired coolant path K1 *. The unit is controlled, currency ⁇ end of the corresponding section 14 of the rolling stock 1, the vorde- ren cooling means 6 passes.
- control device 10 preferably also detects an actual activation state of the corresponding front cooling devices 6 and determines therefrom an actual first coolant path K1.
- the difference between the first target coolant path K1 * and the actual first coolant path K1 consists in that the first target cooling ⁇ medium extending Kl * a desired control of the front cooling devices 6 corresponding to the actual first coolant ⁇ extending Kl, however, corresponds to the time course of the application of an actual amount of refrigerant to the corresponding section 14 of the rolling material 1 through the front cooling devices 6 ,
- the control device 10 determines an expected enthalpy EZ.
- the expected enthalpy EZ is an enthalpy which the corresponding section 14 of the rolling stock 1 has in the second cooling phase II.
- the expected enthalpy EZ can be assumed by the corresponding section 14 of the rolling stock 1 at the beginning, in a middle region or at the end of the second cooling phase II. It is possible for the control device 10 to determine the expected enthalpy EZ within the scope of the step S6 on the basis of the initial energy quantity EA and the first setpoint coolant gradient K1 *.
- ⁇ preferably determines the control means 10, however, the expected enthalpy EZ, as shown in FIG 2 on the basis of the initial quantity of energy EA of the respective section 14 of the rolling material 1 and the loading of the respective section 14 of the rolling material 1 with the actual ers ⁇ th coolant course Kl .
- the control device 10 determines a second desired coolant flow path K2 *.
- the second desired coolant ⁇ course K2 * indicates which amount of coolant the respec ⁇ ge section 14 of the rolling stock 1 is to be acted upon in the third cooling phase III.
- the controller 10 determines the second target refrigerant course K2 * on the basis of job for each ⁇ portion 14 in the second cooling phase II expect ⁇ th enthalpy EZ and Sollenthalpie E2 *. The determination takes place in such a way that an actual enthalpy E2 of the corresponding section 14 of the rolling stock 1 at the end of the third cooling phase III corresponds as well as possible to the desired enthalpy E2 *.
- the determination of the second desired coolant flow K2 by the control device 10 can take place as required.
- the control device 10 determines the second set coolant course K2 * such that the respective section 14 of the rolling stock 1 until it leaves the cooling section 2
- control device 10 controls the rear cooling devices 8 in accordance with the determined second desired coolant flow path K2 *.
- the control takes place while the corresponding section 14 of the rolling stock 1 passes through the rear cooling devices 8.
- the steps S3 to S8 are carried out as shown in FIG. 2 for each section 14 of the rolling stock 1.
- a (further) temperature measuring station is as shown in FIG 1 downstream of the cooling section 2 arranged 15 on which also a temperature T of the roll 1 is detected ⁇ guts.
- the temperature measuring Platz 15 is nachfol ⁇ quietly referred to distinguish it from the input-side temperature measuring station 4 as the output-side temperature measuring 15th.
- the temperature T of the rolling stock 1 detected there is compared by the control device 10 with an expected temperature in a step S9.
- the expected temperature can be determined by the control device 10, for example, based on the expected enthalpy EZ and the second desired coolant flow K2 * or - preferably - based on the expected enthalpy EZ and an actual second target coolant flow K2. Based on the comparison, for example, within the control device 10, a model of the cooling section 2 (not shown in the FIG) can be adapted.
- a temperature measuring point 16 can also be arranged in the region of the cooling section 2 corresponding to the second cooling phase II, referred to below as a mean temperature measuring point 16 for distinguishing between the input-side and output-side temperature measuring stations 4, 15 ,
- a detection of a temperature T of the rolling stock 1 can take place.
- an adaptation of the model of the cooling section 2 can take place.
- the target energy El * is preferably determined so that a phase transformation of the corresponding section 14 of the rolling material 1 has not started or has just begun, and further includes a conversion rate of Me ⁇ talls at the corresponding temperature T of the corresponding section 14 of the rolling material 1 is maximum.
- the Tempe ⁇ temperature T should be kept as constant as possible in the second cooling phase II. At 100%, this constant is generally not possible, but it should be sought as far as possible. For this purpose, it is advantageous to adjust the heat output as possible so that the heat output as a result corresponds as possible with the heat of transformation generated by the Phasenum ⁇ conversion.
- the transport rollers 5 often have a cooling.
- the cooling may be formed, for example, as internal cooling.
- the transport rollers 5 - preferably in particular in the vicinity of the outer periphery of the Trans ⁇ portrollen 5 - flowed through by a liquid cooling medium.
- the cooling medium can be sprayed onto the transport rollers 5 from the outside by means of spray nozzles or the like (external cooling).
- the liquid cooling medium in both cases is mostly water or at least based on water.
- step S11 the controller 10 determines a target roll cooling history KR *.
- the desired roll cooling curve KR * gives a nominal cooling curve for a region of the cooling section 2 corresponding to the second cooling phase II. ment of arranged in this area transport rollers 5 at.
- the determination of the step Sil is carried out on the basis of the Sollener ⁇ gie El * or the Istenergy El.
- the control device 10 additionally uses the information C about the chemical composition of the rolling stock 1.
- step S12 the cooling of the corresponding transport rollers 5 takes place in accordance with the desired roll cooling curve KR *.
- the cooling of the transport rollers 5 in this area of the cooling section 2 is maintained.
- the cooling of the transport rollers 5 is reduced in this area of the cooling section 2 or in extreme cases even completely switched off. This extreme case is - purely by way of example - shown in FIG.
- step S13 the cooling of the transport rollers 5 in the region of the cooling section 2 corresponding to the second cooling phase II is reduced or simply switched off.
- the adaptation of the cooling of the transport rollers 5 takes place only during the period during which the rolling stock 1 is in the corresponding area - that is the area corresponding to the second cooling phase II - the cooling section 2. If there is no rolling stock in this area, the transport rollers 5 are temporarily or permanently cooled.
- the present invention relates to fol ⁇ constricting facts:
- Portions 14 of a rolling material 1 is first cooled during the pres ⁇ fens a cooling section 2 in a first cooling phase I by means of front cooling means 6, then in egg ner subsequent thereto second cooling phase II is not cooled and finally cooled in a subsequent third cooling phase III by means of rear cooling means 8 of the cooling section 2 again.
- a control device 10 of the cooling section in each case receives an initial energy quantity EA which the sections 14 have before passing through the cooling section 2. She continues to be a target energy El * and ei ⁇ ne Sollenthalpie E2 * contrary. Based on the initial energy quantity EA and the setpoint energy El *, the control device 10 determines a first setpoint coolant flow rate Kl *.
- the controller 10 determines a second set coolant path K2. It controls the rear cooling means 8 * corresponding to the second target refrigerant course K2 during the jewei ⁇ celled section 14 of the rolling material 1 passes through the rear cooling devices.
- the present invention has many advantages. Insbeson ⁇ particular to the material properties are set to ⁇ reliably even in steels with a high carbon content. Furthermore, the present invention is also applicable when the cooling section 2 is relatively short. The material properties over the entire length of the rolling stock can be one sailed ⁇ hen adjusted very evenly. As a result, the rolling stock 1 seen over its length has a relatively low
- Cooling section 2 is given a good planarity. In the case of a strip as rolling stock 1 tape running problems and reel ⁇ leme be avoided. Finally, the Umwandlungsgeschwindig ⁇ ness can be maximized.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (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 |
---|---|---|---|
EP14152872.9A EP2898963A1 (de) | 2014-01-28 | 2014-01-28 | Kühlstrecke mit zweifacher Kühlung auf eine jeweilige Sollgröße |
PCT/EP2015/050662 WO2015113825A1 (de) | 2014-01-28 | 2015-01-15 | Kühlstrecke mit zweifacher kühlung auf eine jeweilige sollgrösse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3099430A1 true EP3099430A1 (de) | 2016-12-07 |
EP3099430B1 EP3099430B1 (de) | 2017-11-01 |
Family
ID=50000880
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14152872.9A Withdrawn EP2898963A1 (de) | 2014-01-28 | 2014-01-28 | Kühlstrecke mit zweifacher Kühlung auf eine jeweilige Sollgröße |
EP15700669.3A Active EP3099430B1 (de) | 2014-01-28 | 2015-01-15 | Kühlstrecke mit zweifacher kühlung auf eine jeweilige sollgrösse |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP14152872.9A Withdrawn EP2898963A1 (de) | 2014-01-28 | 2014-01-28 | Kühlstrecke mit zweifacher Kühlung auf eine jeweilige Sollgröße |
Country Status (4)
Country | Link |
---|---|
US (1) | US10413950B2 (de) |
EP (2) | EP2898963A1 (de) |
CN (1) | CN106163684B (de) |
WO (1) | WO2015113825A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018205685A1 (de) * | 2018-04-13 | 2019-10-17 | Sms Group Gmbh | Kühleinrichtung und Verfahren zu deren Betrieb |
EP3599037A1 (de) * | 2018-07-25 | 2020-01-29 | Primetals Technologies Germany GmbH | Kühlstrecke mit einstellung der kühlmittelströme durch pumpen |
DE102019104419A1 (de) * | 2019-02-21 | 2020-08-27 | Sms Group Gmbh | Verfahren zur Einstellung verschiedener Kühlverläufe von Walzgut über der Bandbreite einer Kühlstrecke in einer Warmband- oder Grobblech-Straße |
DE102019106730A1 (de) * | 2019-03-18 | 2020-01-02 | Primetals Technologies Austria GmbH | Kühlung von flachem Walzgut ohne Nachlaufen des Headers |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000167615A (ja) | 1998-12-03 | 2000-06-20 | Toshiba Corp | 巻取温度制御方法及び制御装置 |
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 |
DE19963185A1 (de) * | 1999-12-27 | 2001-07-12 | Siemens Ag | Verfahren und Einrichtung zum Kühlen eines aus einem Walzgerüst auslaufenden warmgewalzten Metallbandes |
DE10129565C5 (de) * | 2001-06-20 | 2007-12-27 | Siemens Ag | Kühlverfahren für ein warmgewalztes Walzgut und hiermit korrespondierendes Kühlstreckenmodell |
DE10156008A1 (de) | 2001-11-15 | 2003-06-05 | Siemens Ag | Steuerverfahren für eine einer Kühlstrecke vorgeordnete Fertigstraße zum Walzen von Metall-Warmband |
DE10251716B3 (de) | 2002-11-06 | 2004-08-26 | Siemens Ag | Modellierverfahren für ein Metall |
EP1596999B2 (de) | 2003-02-25 | 2011-05-25 | Siemens Aktiengesellschaft | Verfahren zur regelung der temperatur eines metallbandes, insbesondere in einer kühlstrecke |
DE102004005919A1 (de) * | 2004-02-06 | 2005-09-08 | Siemens Ag | Rechnergestütztes Modellierverfahren für das Verhalten eines Stahlvolumens mit einer Volumenoberfläche |
DE502004005051D1 (de) | 2004-04-06 | 2007-10-31 | Siemens Ag | Verfahren zum herstellen eines metalls |
JP4767544B2 (ja) | 2005-01-11 | 2011-09-07 | 新日本製鐵株式会社 | 鋼板の冷却制御方法 |
JP4958761B2 (ja) | 2007-12-21 | 2012-06-20 | 株式会社日立製作所 | 巻取り温度制御装置および制御方法 |
DE102008011303B4 (de) | 2008-02-27 | 2013-06-06 | Siemens Aktiengesellschaft | Betriebsverfahren für eine Kühlstrecke zum Kühlen eines Walzguts mit von der Temperatur losgelöster Kühlung auf einen Endenthalpiewert |
CN101745551B (zh) | 2008-12-11 | 2011-11-23 | 宝山钢铁股份有限公司 | 一种热轧带钢自由冷却方法 |
EP2386365A1 (de) * | 2010-05-06 | 2011-11-16 | Siemens Aktiengesellschaft | Betriebsverfahren für eine Fertigstraße mit Prädiktion der Leitgeschwindigkeit |
JP5610869B2 (ja) | 2010-06-21 | 2014-10-22 | 株式会社神戸製鋼所 | 圧延材の冷却制御方法、及びこの冷却制御方法が適用された連続圧延機 |
JP2012011448A (ja) | 2010-07-05 | 2012-01-19 | Kobe Steel Ltd | 圧延材の冷却制御方法、及びこの冷却制御方法が適用された連続圧延機 |
EP2468905A1 (de) | 2010-12-22 | 2012-06-27 | Siemens VAI Metals Technologies GmbH | Kühlstrecke mit integriertem Vertikalbandspeicher |
EP2527054A1 (de) * | 2011-05-24 | 2012-11-28 | Siemens Aktiengesellschaft | Steuerverfahren für eine Walzstraße |
JP5693392B2 (ja) | 2011-06-15 | 2015-04-01 | 株式会社神戸製鋼所 | 冷却又は加熱される鋼板における変態率の算出方法、及び鋼板の変態率の制御方法 |
EP2540404A1 (de) * | 2011-06-27 | 2013-01-02 | Siemens Aktiengesellschaft | Steuerverfahren für eine Warmbandstraße |
-
2014
- 2014-01-28 EP EP14152872.9A patent/EP2898963A1/de not_active Withdrawn
-
2015
- 2015-01-15 WO PCT/EP2015/050662 patent/WO2015113825A1/de active Application Filing
- 2015-01-15 CN CN201580006292.2A patent/CN106163684B/zh active Active
- 2015-01-15 US US15/114,647 patent/US10413950B2/en active Active
- 2015-01-15 EP EP15700669.3A patent/EP3099430B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
US20160346822A1 (en) | 2016-12-01 |
EP3099430B1 (de) | 2017-11-01 |
CN106163684A (zh) | 2016-11-23 |
CN106163684B (zh) | 2018-07-17 |
US10413950B2 (en) | 2019-09-17 |
EP2898963A1 (de) | 2015-07-29 |
WO2015113825A1 (de) | 2015-08-06 |
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