EP1550523A1 - Régulation diversifié du refroidissement secondaire dans une installation de coulée continue - Google Patents
Régulation diversifié du refroidissement secondaire dans une installation de coulée continue Download PDFInfo
- Publication number
- EP1550523A1 EP1550523A1 EP04029168A EP04029168A EP1550523A1 EP 1550523 A1 EP1550523 A1 EP 1550523A1 EP 04029168 A EP04029168 A EP 04029168A EP 04029168 A EP04029168 A EP 04029168A EP 1550523 A1 EP1550523 A1 EP 1550523A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- strand
- segment
- casting
- secondary cooling
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 78
- 238000009749 continuous casting Methods 0.000 title claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 21
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005204 segregation Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 description 17
- 230000001419 dependent effect Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
- B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling
Definitions
- the invention relates to a method for diversified control of the secondary cooling a continuous casting plant, in which the secondary cooling to the current Casting task regarding steel grade, difficulties during the casting process etc. is adjusted.
- the document DE 44 17 808 A1 discloses a method for continuous casting of a metal strand.
- a strand is drawn with a trapped by a strand shell liquid core from a cooled continuous casting mold and supported in a continuous casting mold downstream strand support means and cooled with coolant.
- thermodynamic state changes of the strand such as changes in surface temperature, center temperature, shell thickness and also the mechanical states
- the deformation behavior in a mathematical simulation model by solving the heat equation is constantly included and the cooling of the strand is dependent on the calculated value of at least one of thermodynamic state variables are set, taking into account for the simulation of the strand thickness and the chemical analysis of the metal and the continuously measured casting speed.
- the document EP 0 650 790 B1 discloses a method for thermal surface treatment of strands of fine-grained structural steel in a continuous casting machine, which is a heating furnace for heating the strands of a hot batch assigned to the elimination of compounds of aluminum, vanadium, To prevent niobium and the like, and to surface defects due to eliminate or at least substantially reduce stress.
- the related continuous casting machine has a mold, a secondary cooling chamber, an extraction and alignment unit and a cutting unit.
- the related method has a first cooling step for strands within the secondary cooling chamber and a second cooling step for the strands the cutting unit.
- the process is characterized by surface quenching the outer layer of the strands with the aid of the second cooling step, this by intensive and concentrated cooling of the surface of the strands is reached, the surface temperature of the strands after the natural, Anneals caused by the hot core of the strands are between about 400 ° C and to reduce about 900 ° C, this intense and concentrated cooling is realized by a cooling fluid through a plurality of spray nozzles water-based under pressure against the surface of the strands is sprayed.
- the intense and concentrated cooling is dependent on the dimensions of the strands depends and becomes immediately or immediately after the step of undressing and aligning the strands through the extension and alignment unit.
- the document WO 01/91943 A1 discloses a method for continuous casting of a Metal strands, in particular a steel strand, wherein a strand of a cooled Continuous mold pulled out, downstream in one of the continuous casting mold Strand support device supported and cooled with coolant and possibly reduced in thickness becomes.
- a specific microstructure in the cast strand is the continuous casting under on-line calculation on the basis of a Training certain structure descriptive computational models performed.
- the structure formation influencing variable of the continuous casting process, such. B. is provided for cooling the strand specific coolant amount is set during ongoing casting.
- the document DE 195 42 434 C2 discloses a method and a device for optimizing the cooling or coolant quantity during continuous casting.
- the method can be used in particular at variable strand speed, wherein the cooling and solidification behavior of the strand is influenced by fixed cooling devices, in particular water spraying, and the amount of coolant according to a predetermined strand material dependent relationship between the time that a strand segment of the cooling is exposed and the and the strand material dependent relationship between the time that the strand segment is exposed to cooling and the optimum cooling amount is determined from known strand segment dependent relationships between strand velocity and optimum cooling.
- the relationships between strand velocity and cooling are selected by setting a virtual strand velocity, which is arbitrary and independent of the actual strand velocity.
- the document DE 196 12 420 C2 discloses a method for controlling the Cooling of a strand in continuous casters, in which the cooling or the solidification behavior of the strand by that used for cooling the strand Coolant quantity and the type of coolant application can be influenced wherein the necessary amount of coolant or application by means of a cooling model as a function of a predetermined nominal temperature distribution in Strand or an equivalent size is determined.
- a cooling model is constantly the temperature distribution in the strand as a function of the amount of coolant or -aufbringungsart determined in real time.
- the necessary amount of coolant or -aufbringungsart is iteratively depending on a given Setpoint temperature distribution is determined, iterating as often as the deviation the determined with the cooling model temperature distribution of the given Target temperature distribution is smaller than a predetermined tolerance value.
- the document DE 1 960 671 A1 discloses a method for cooling from a fürlaufkokille exiting strand, wherein the strand surface acting on Cooling water quantity is adjustable.
- Setpoint values of the cooling water quantity are dependent on the composition set of the material, the cross section and the solidification time.
- the nominal values are determined during casting as a function of the instantaneous Integral value of the casting speed during the path of the strand of the Melt surface up to the respective cooling zone a matching to the cooling zone Setpoint selected and used for cooling water control, the strand surface temperature remains predeterminable.
- Document DE 2 344 438 A2 discloses a method for controlling cooling a strand emerging from a continuous casting mold, wherein the Strand surface acting on cooling water amounts for individual sections the cooling area are adjustable and at the beginning of a casting by a Calculator setpoints of these cooling water quantities depending on the chemical Composition of the strand material, the cross section and the desired Casting speed given and dependent during casting from the running time of unreal strand sections from the mold to the corresponding one Section of the cooling area to be changed.
- the document DE 25 42 290 C2 discloses a method for controlling the Continuous casting of metal in a continuous casting plant with a water-cooled Mold, wherein by primary cooling of the liquid metal, a metal strand with liquid Core is formed, which emerges from the mold and successive Secondary cooling passes through, in which he over control slide with cooling water is applied in controllable amounts, with the optimal, the predetermined Quality requirements appropriate casting speed and determines the synchronous course of casting with the associated treatment furnaces of the metal is maintained by pouring at the optimum speed is measured. Before the start of casting a certain temperature profile according to the optimum casting speed along the strand surface predetermined, for which set the amounts of water of the secondary cooling zone become. During casting, the measured actual casting speed becomes compared with the optimal casting speed and the deviant actual casting speed from the optimum casting speed is used for the Nach Kunststoffmaschine the control slide for the amounts of water.
- the document DE 26 51 573 A1 discloses a method for secondary cooling a metal strand, in particular of steel, by quantity-controlled spraying a coolant in individual cooling areas with nozzles, in which the Strand shell on the surface in each case areawise, intermittently in Sequence of the strand feed cooled and by the inflowing out of the strand inside Heat is reheated.
- the each nozzle in the unit of time supplied Coolant quantity is set to default values of the coolant amount, each Strand surface unit is supplied from a nozzle controlled.
- the amount of coolant for the individual by a distance X the furthest from the Continuous casting mold removed nozzle of each cooling area of the continuous casting mold is set in percentages of the total secondary cooling section specified cooling areas set to values that in a graph of the coolant quantity above the secondary cooling section between the intersection points at the location of the am furthest away from the continuous casting die nozzle of the abscissa individual cooling areas erected vertical lie.
- the invention Based on the aforementioned extensive prior art, the invention based on the need and the task, through a more flexible rule principle, which addresses more directly the cooling requirements of continuous casting, a more extensive one Improvement of secondary cooling to achieve.
- An embodiment of the invention provides that the control of the cooling circuits for the individual segments is done with a cooling model, which has specific tasks includes.
- Another embodiment provides that in this cooling model for each segment Strand shell thickness or shell strength, solidification length, segregation behavior, Microstructure, strand surface temperature, strand shell tension or the like can be calculated and an assignment of said Functions for the respective segment of the respective casting task dynamically he follows.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410001037 DE102004001037A1 (de) | 2004-01-03 | 2004-01-03 | Diversifizierte Regelung der Sekundärkühlung einer Stranggießanlage |
| DE102004001037 | 2004-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1550523A1 true EP1550523A1 (fr) | 2005-07-06 |
Family
ID=34559859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04029168A Withdrawn EP1550523A1 (fr) | 2004-01-03 | 2004-12-09 | Régulation diversifié du refroidissement secondaire dans une installation de coulée continue |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1550523A1 (fr) |
| DE (1) | DE102004001037A1 (fr) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009034847A1 (de) | 2009-07-27 | 2011-02-03 | Sms Siemag Ag | Vorrichtung und Verfahren zur geregelten Sekundärkühlung einer Stranggießanlage |
| DE102009049897A1 (de) | 2009-10-20 | 2011-04-28 | Sms Siemag Ag | Verfahren und Vorrichtung zum Stranggießen eines Metallstranges |
| DE102010052247A1 (de) | 2010-11-23 | 2012-05-24 | Sms Siemag Ag | Vorrichtung und Verfahren zur geregelten Sekundärkühlung einer Stranggießanlage |
| US9079243B2 (en) | 2007-12-03 | 2015-07-14 | Sms Siemag Aktiengesellschaft | Method of and device for controlling or regulating a temperature |
| EP2788133B1 (fr) | 2011-12-05 | 2016-02-03 | Primetals Technologies Austria GmbH | Mesures d'amélioration du processus dans une machine de coulée continue au démarrage de la coulée, à la fin de la coulée et lors de la production d'un élément de jonction |
| AT518450A1 (de) * | 2016-03-17 | 2017-10-15 | Primetals Technologies Austria GmbH | Verfahren und Kühleinrichtung zum Kühlen eines metallischen Strangs |
| CN109702163A (zh) * | 2019-03-07 | 2019-05-03 | 山东钢铁股份有限公司 | 一种用于控制铸坯脱方的二次冷却配水装置及方法 |
| CN115194114A (zh) * | 2022-06-02 | 2022-10-18 | 南京钢铁股份有限公司 | 一种连铸坯表面热处理方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189237B (zh) * | 2008-12-30 | 2013-04-17 | 内蒙古包钢钢联股份有限公司 | 连铸坯动态轻压下系统集成技术 |
| CN113245519B (zh) * | 2021-04-29 | 2022-07-15 | 北京科技大学 | 一种连铸方坯二冷水量的动态控制方法及系统 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3915216A (en) * | 1972-09-06 | 1975-10-28 | Concast Ag | Method of controlling the secondary cooling of a continuously cast strand |
| DE4417808A1 (de) * | 1993-05-24 | 1994-12-01 | Voest Alpine Ind Anlagen | Verfahren zum Stranggießen eines Metallstranges |
| US5988259A (en) * | 1996-03-28 | 1999-11-23 | Siemens Aktiengesellschaft | Method and apparatus for controlling the cooling of a strand in a continuous casting installation |
| WO2001091943A1 (fr) * | 2000-06-02 | 2001-12-06 | Voest-Alpine Industrieanlagenbau Gmbh & Co. | Procede pour couler des barres de metal en continu |
-
2004
- 2004-01-03 DE DE200410001037 patent/DE102004001037A1/de not_active Withdrawn
- 2004-12-09 EP EP04029168A patent/EP1550523A1/fr not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3915216A (en) * | 1972-09-06 | 1975-10-28 | Concast Ag | Method of controlling the secondary cooling of a continuously cast strand |
| DE4417808A1 (de) * | 1993-05-24 | 1994-12-01 | Voest Alpine Ind Anlagen | Verfahren zum Stranggießen eines Metallstranges |
| US5988259A (en) * | 1996-03-28 | 1999-11-23 | Siemens Aktiengesellschaft | Method and apparatus for controlling the cooling of a strand in a continuous casting installation |
| WO2001091943A1 (fr) * | 2000-06-02 | 2001-12-06 | Voest-Alpine Industrieanlagenbau Gmbh & Co. | Procede pour couler des barres de metal en continu |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9079243B2 (en) | 2007-12-03 | 2015-07-14 | Sms Siemag Aktiengesellschaft | Method of and device for controlling or regulating a temperature |
| WO2011038800A1 (fr) | 2009-07-27 | 2011-04-07 | Sms Siemag Aktiengesellschaft | Dispositif et procédé de refroidissement secondaire commandé d'une installation de coulée continue |
| DE102009034847A1 (de) | 2009-07-27 | 2011-02-03 | Sms Siemag Ag | Vorrichtung und Verfahren zur geregelten Sekundärkühlung einer Stranggießanlage |
| DE102009049897B4 (de) | 2009-10-20 | 2023-09-14 | Sms Group Gmbh | Verfahren und Vorrichtung zum Stranggießen eines Metallstranges |
| DE102009049897A1 (de) | 2009-10-20 | 2011-04-28 | Sms Siemag Ag | Verfahren und Vorrichtung zum Stranggießen eines Metallstranges |
| DE102010052247A1 (de) | 2010-11-23 | 2012-05-24 | Sms Siemag Ag | Vorrichtung und Verfahren zur geregelten Sekundärkühlung einer Stranggießanlage |
| WO2012069234A1 (fr) | 2010-11-23 | 2012-05-31 | Sms Siemag Ag | Dispositif et procédé permettant le refroidissement secondaire régulé d'une installation de coulée continue |
| EP2788133B1 (fr) | 2011-12-05 | 2016-02-03 | Primetals Technologies Austria GmbH | Mesures d'amélioration du processus dans une machine de coulée continue au démarrage de la coulée, à la fin de la coulée et lors de la production d'un élément de jonction |
| AT518450B1 (de) * | 2016-03-17 | 2021-02-15 | Primetals Technologies Austria GmbH | Verfahren und Kühleinrichtung zum Kühlen eines metallischen Strangs |
| AT518450A1 (de) * | 2016-03-17 | 2017-10-15 | Primetals Technologies Austria GmbH | Verfahren und Kühleinrichtung zum Kühlen eines metallischen Strangs |
| CN109702163A (zh) * | 2019-03-07 | 2019-05-03 | 山东钢铁股份有限公司 | 一种用于控制铸坯脱方的二次冷却配水装置及方法 |
| CN109702163B (zh) * | 2019-03-07 | 2024-04-09 | 山东钢铁股份有限公司 | 一种用于控制铸坯脱方的二次冷却配水方法 |
| CN115194114A (zh) * | 2022-06-02 | 2022-10-18 | 南京钢铁股份有限公司 | 一种连铸坯表面热处理方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004001037A1 (de) | 2005-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20041209 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMS SIEMAG AG |
|
| 17Q | First examination report despatched |
Effective date: 20091016 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20100629 |