EP0881018B1 - Wasserkühlbare Stranggiesskokille - Google Patents
Wasserkühlbare Stranggiesskokille Download PDFInfo
- Publication number
- EP0881018B1 EP0881018B1 EP98109430A EP98109430A EP0881018B1 EP 0881018 B1 EP0881018 B1 EP 0881018B1 EP 98109430 A EP98109430 A EP 98109430A EP 98109430 A EP98109430 A EP 98109430A EP 0881018 B1 EP0881018 B1 EP 0881018B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- water
- chill mould
- cooling water
- outlet
- 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.)
- Expired - Lifetime
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005266 casting Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 230000009189 diving Effects 0.000 description 4
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000161 steel melt Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
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
Definitions
- the invention relates to a liquid-cooled continuous casting mold with each other independent mold walls made of copper plates.
- Your education depends on a number of interacting factors such as casting speed, steel temperature, material, strand geometry, Immersion mold, taper of the mold and the type and composition of a slag-forming lubricant that, when applied to the mold level, reduce the inevitable friction between the strand shell and the mold should. It is particularly important that the lubricant is evenly distributed in the area of the mold walls, this in the form of a so-called Casting powder applied to the mold level, thereby melting and by oscillating movements of the molten steel between these and the mold walls arrives. The lubricant should spread as evenly as possible between the strand shell that forms and the mold walls is related with the heat transfer conditions between the strand shell and the mold wall of particular importance.
- a plate mold for is from DE 24 15 224 C3 Slabs known, the mold walls have cooling chambers, each delimited Include cooling areas.
- the broad side walls are measuring elements for determining the amount of heat dissipated or the cooling capacities arranged. With the help of these measuring elements a Average value of the cooling capacity of the cooling chambers, which one Average generator is fed in, with which the conicity of the narrow sides is controlled becomes.
- the disadvantage here is that differentiated information in the molds mentioned about the partial heat flows along the mold width are not made. This is also disadvantageous because for the safe casting of slabs and especially of thin slabs at comparatively high casting speeds a determination of differentiated specific heat transfers in the area of the broadsides and especially not in the middle of the slab in the area of the dip tube becomes. Only with knowledge of these specific heat transfers can a regulation of the heat flows over the entire broadside of the mold and so that over the entire slab side can be reached in order to disturbances in particular to avoid by uneven formation of the strand shell.
- the broad side walls have at least three side by side and mutually independent cooling segments, these being symmetrical are divided to the center axis and separate in the area of the mold outlet Have connections for the independent supply of a liquid cooling medium.
- the cooling water temperature of a mold wall is at a point in the area of the drain openings of a copper plate and the associated water tank measured.
- the temperature readings of the The mold wall and the cooling water are a controller for changing the Taper of the mold narrow sides or to change the mold oscillation switched.
- the object of the invention based on specifying an improved continuous casting mold, which is suitable in Inside the mold, heat flows are formed in the melt by means of sensitive, differentiated measurements of the heat flows corresponding to these of the cooling water flowing through the mold walls without any time delay to capture in time control impulses to regulate unwanted Heat exchange conditions, especially with regard to training derive the strand shell in the area of the mold walls.
- the task is solved with a continuous casting mold with independent of each other Mold walls made of copper plates, the lower part of the Broad side wall of the mold the inlet of cooling water and in the upper area of the Broad side wall of the drainage of cooling water is arranged, in close succession and each in a vertical plane cooling channels with inlet bores and outlet bores are arranged, the inlet holes cooperating the Form water inlet of the cooling water flow into the cooling channels of the mold wall, while the sum of the drain holes combined the water drain form, and in the cooling water inlet at least one temperature sensor and one Dispenser is arranged for the inflow amount per unit of time and also in Water drainage area between a copper plate and the cooling water drainage openings of the water tank, in particular at least per broad side plate Two places temperature sensors are arranged, the signal lines together with the signal lines of the temperature sensors of the water inlet to a computer, preferably with an online screen.
- the mold according to the invention enables a differentiated statement about the Distribution of partial heat flows along the mold width and thus a simple one and safe temperature control of the heat flows close to the wall of the melt inside the mold including the middle of the broadside in the area of the dip tube or the diving spout.
- it is possible along the width of a Chill mold and especially in the area of the diving spout compared to the other areas of the broad sides and to the narrow sides an extreme sensitive and uniform cooling performance and thus disturbances Avoid, for example, the flow shadow caused by the diving spout non-uniform lubricating film thickness, high membrane effect of the strand shell in the Slab center and due to turbulence of the casting level across the slab width can be caused.
- the water drain openings are between Copper plate and water box are evenly distributed in the mold width and each designed for the passage of a constant, equal amount of water.
- the continuous casting mold according to the invention is both for the production of thin slabs made of steel with strand thicknesses between preferably 40 and 150 mm comparatively high casting speeds as well as for billet molds for Continuous casting of rectangular or round-shaped continuous casting profiles provided.
- Fig. 1 shows an existing copper mold side wall 1 with a Metal melt bath 2 'facing surface part 3.
- a Metal melt bath 2 'facing surface part 3 In the solid wall made of copper are arranged in close succession of coolant holes 4, the bottom of are forced to flow above with cooling water. These open on the upper side in a collecting channel 10, which by means of drain holes 5 in a water tank 7 transfers. This is with the plate-shaped elements 6 and 11 of the water tank 7 trained.
- thermal coupling 8 in the form of a copper longitudinal bar with channels to accommodate the individual Thermal sensors 20 (Fig. 2) leading signal lines 9.
- the thermal coupling can For example, be an independent assembly that the individual thermal sensors 20th records with their signal lines 9. It can be used with TP 100 silicone in Corner area of the wall part 6 can be fastened in such a way that it has at least two Surfaces in the flow area of the coolant. Also per measuring point a hole is drilled through the water box in the upper area, which can then be provided with a sensor from the outside.
- Fig. 2 shows the surface part 3 of a plate mold with an inventive Plenty of cooling water drain holes 5 in the upper area of the broad side wall 1 in a horizontal projection on both sides of the dip tube 21.
- In the lower Area of the broad side wall 1 are in for the supply of cooling water close sequence and each in a vertical plane with the drain holes 5 Inlet bores 15, also on both sides of the mold wall center plane v-v.
- the bores 15 cooperatively form the water inlet 24 of the cooling water flow into the cooling channels 4 of the mold wall 1, while the sum of the drain holes 5 taken together form the water drain 25.
- On the right and to the left of the median plane v-v are the side closure of the Broad side wall 1 forming narrow side walls 22 and 23.
- the thermal sensor 20 is installed between each two water drain holes 5, the thermal sensor 20 is installed. In doing so in each case two water drain holes 5 arranged next to one another with two in the same vertical plane arranged water inlet holes 15 each Flow field A, B, C, D or A ', B'
- FIG. 3 shows a three-dimensional diagram with the representation of temperature profiles, measured across the width A 'to D of a slab mold plate with, for example, four that are separated in time and can be compared Corresponding temperature profiles at intervals of ten time units the time axis Z.
- the width of the mold plate is on the abscissa x-x and the value of the measured heat transport is plotted on the ordinate Y.
- the representation corresponds, for example, to a diagram on the computer screen and enables immediate evaluation or correction in the event of a deviation from a given temperature profile.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
- Figur 1
- im Querschnitt einen Teil einer Kokillen-Längswand mit zugeordnetem Wasserkasten und Anordnung einer Thermokupplung mit Wärmefühlern;
- Figur 2
- eine Ansicht einer Kokillen-Breitseitenwand mit Anordnung von Kühlwasser-Temperatur-Meßeinrichtungen im Bereich des Wasserzulaufs sowie im Bereich des Wasserablaufs, teilweise im Schnitt;
- Figur 3
- mehrere Temperaturprofile entlang einer Breitseite einer Kokille im Vergleich mit in Zeitintervallen gewonnen Temperaturprofilen.
- 1
- Breitseitenwand
- 2
- Stahl-Schmelzenbad
- 3
- Wandseite/Flächenteil
- 4
- Kühlwasser-Bohrung
- 5
- Kühlwasser-Ablaufbohrung
- 6
- Platten-Element
- 7
- Wasserkasten
- 8
- Thermokupplung
- 9
- Signalleitung
- 10
- Sammelkanal
- 11
- Platten-Element
- 15
- Zulaufbohrungen
- 20
- Thermofühler
- 21
- Tauchrohr
- 22
- Schmalseitenwände
- 23
- Schmalseitenwände
- 24
- Wasserzulauf
- 25
- Wasserablauf
Claims (5)
- Flüssigkeitsgekühlte Stranggießkokille mit von einander unabhängigen Kokillenwänden aus Kupferplatten, wobei im unteren Bereich der Breitseitenwand der Kokille der Zulauf (24) von Kühlwasser und im oberen Bereich der Breitseitenwand der Ablauf (25) von Kühlwasser angeordnet ist, wobei in dichter Folge und jeweils in einer vertikalen Ebene Kühlkanäle (4) mit Zulaufbohrungen (15) und Ablaufbohrungen (5) angeordnet sind, wobei die Zulaufboh-rungen zusammenwirkend den Wasserzulauf (24) des Kühlwasserstromes in die Kühlkanäle (4) der Kokillenwand bilden, während die Summe der Ablaufbohrungen (5) zusammen den Wasserablauf (25) bilden und im Kühlwasserzulauf (24) wenigstens ein Temperaturfühler und ein Geber für die Zulaufmenge pro Zeiteinheit angeordnet ist und wobei ferner im Wasserablaufbereich zwischen einer Kupferplatte (1) und den Kühlwasser-Ablauföffnungen (5) des Wasserkastens (7) pro Breitseitenplatte mindestens an zwei Stellen Temperaturfühler (20) angeordnet sind, deren Signalleitungen zusammen mit den Signalleitungen der Temperaturfühler des Wasserzulaufs an einen Rechner mit einem Online-Bildschirm angeschlossen sind.
- Kokille nach Anspruch 1,
dadurch gekennzeichnet, daß im Bereich wenigstens jeder zweiten Ablauföffnung (5) ein Temperaturfühler enthaltendes Thermo-Kupplungsglied angeordnet und bevorzugt mit Silicone vom Typ TP 100 befestigt ist oder daß je Thermofühler eine Bohrung in den Wasserkasten im Bereich der Ablaufbohrung (5) eingebracht wird, die von außen mit einem Thermofühler versehen werden kann. - Kokille nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß Temperaturfühler (9) symmetrisch zur Mittenachse jeder Kokillenbreitseite (1) sowie in Gießrichtung angeordnet sind. - Kokille nach einem der vorhergehenden Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß Kühlwasserablauföffnungen (5) gleichmäßig über die Breite der Breitseitenwände (1) verteilt sind und jeweils zwischen zwei Ablauföffnungen (5) ein Temperaturfühler installiert ist. - Kokille nach einem der vorhergehenden Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Wasserablauföffnungen (5) zwischen Kupferplatte (1) und Wasserkasten (7) in der Kokillenbreite gleichmäßig verteilt angeordnet und jeweils für den Durchtritt einer konstanten, gleichen Wassermenge ausgebildet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722877A DE19722877C2 (de) | 1997-05-31 | 1997-05-31 | Flüssigkeitsgekühlte Stranggießkokille |
DE19722877 | 1997-05-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0881018A2 EP0881018A2 (de) | 1998-12-02 |
EP0881018A3 EP0881018A3 (de) | 1999-01-07 |
EP0881018B1 true EP0881018B1 (de) | 2002-01-02 |
Family
ID=7831056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109430A Expired - Lifetime EP0881018B1 (de) | 1997-05-31 | 1998-05-25 | Wasserkühlbare Stranggiesskokille |
Country Status (5)
Country | Link |
---|---|
US (1) | US6152209A (de) |
EP (1) | EP0881018B1 (de) |
AT (1) | ATE211417T1 (de) |
DE (2) | DE19722877C2 (de) |
ES (1) | ES2170980T3 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19810672B4 (de) * | 1998-03-12 | 2006-02-09 | Sms Demag Ag | Verfahren und Stranggießkokille zum Erzeugen von Brammensträngen, insbesondere aus Stahl |
US6415850B1 (en) * | 1998-08-24 | 2002-07-09 | Sms Schloemann-Siemag Aktiengesellschaft | Method of measuring and regulating temperature and quantity of cooling water for water-coolable mold walls of a continuous casting mold |
DE19916190C2 (de) * | 1998-12-22 | 2001-03-29 | Sms Demag Ag | Verfahren und Vorrichtung zum Stranggießen von Brammen |
ATE243589T1 (de) * | 1998-12-22 | 2003-07-15 | Sms Demag Ag | Verfahren und vorrichtung zum stranggiessen von brammen |
EP1070560B1 (de) * | 1999-07-17 | 2004-12-01 | SMS Demag AG | Verfahren zum Regeln der Kühlwasser-Durchflussgeschwindigkeit durch Kokillenbreitseiten |
ATE299766T1 (de) * | 2000-04-25 | 2005-08-15 | Sms Demag Ag | Verfahren und vorrichtung zur thermischen kontrolle einer stranggiesskokille |
EP1193493A1 (de) * | 2000-09-29 | 2002-04-03 | Infineon Technologies SC300 GmbH & Co. KG | Verfahren und Vorrichtung zum Messen und Regeln des Wassergehalts einer wässrigen Lösung |
DE10329033A1 (de) * | 2003-06-27 | 2005-01-13 | Sms Demag Ag | Verfahren und Messanordnung zum Erkennen von Blasensieden in den Kühlkanälen einer Stranggießkokille |
DE102006060673A1 (de) * | 2006-11-02 | 2008-05-08 | Sms Demag Ag | Verfahren und Regelvorrichtung zum Regeln der Wärmeabfuhr einer Seitenplatte einer Kokille |
DE102012224132B4 (de) * | 2012-12-21 | 2023-10-05 | Primetals Technologies Austria GmbH | Überwachungsverfahren für eine Stranggießkokille mit Aufbau einer Datenbank |
DE102014112206A1 (de) * | 2014-08-26 | 2016-03-03 | Peter Valentin | Verfahren zum Stranggießen eines Metalls, insbesondere eines Stahls, und Vorrichtung zum Stranggießen |
CN113710031B (zh) * | 2021-08-30 | 2023-08-11 | 无锡格林沃科技有限公司 | 一种主板控制箱外体装置及其制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH558687A (de) * | 1973-03-30 | 1975-02-14 | Concast Ag | Verfahren zum steuern der kuehlleistung von schmalseitenwaenden bei plattenkokillen beim stranggiessen und plattenkokille zur durchfuehrung des verfahrens. |
AT337381B (de) * | 1973-04-17 | 1977-06-27 | Mannesmann Ag | Verfahren zur ermittlung und uberwachung der schalendicke und des schalenwachstums eines stranges |
IT1021775B (it) * | 1974-10-11 | 1978-02-20 | Centro Speriment Metallurg | Processo e dispositivo per il controllo della fusione di metalli sotto scoria elettrofusa |
JPS5653853A (en) * | 1979-10-05 | 1981-05-13 | Hitachi Ltd | Production of sheet and its apparatus |
DE3423475C2 (de) * | 1984-06-26 | 1986-07-17 | Mannesmann AG, 4000 Düsseldorf | Verfahren und Einrichtung zum Stranggießen von flüssigen Metallen, insbesondere von flüssigem Stahl |
US4949777A (en) * | 1987-10-02 | 1990-08-21 | Kawasaki Steel Corp. | Process of and apparatus for continuous casting with detection of possibility of break out |
JPH0787976B2 (ja) * | 1988-11-30 | 1995-09-27 | 川崎製鉄株式会社 | オンライン鋳片表面欠陥検出方法 |
JPH02179344A (ja) * | 1988-12-28 | 1990-07-12 | Hitachi Ltd | ベルト式連鋳機およびその制御方法 |
DE4117073A1 (de) * | 1991-05-22 | 1992-11-26 | Mannesmann Ag | Temperaturmessung brammenkokille |
DE4323475C2 (de) * | 1993-07-14 | 1997-07-31 | Eisenmann Kg Maschbau | Überwachungsverfahren und Überwachungseinrichtung zu seiner Durchführung |
DE19529931C1 (de) * | 1995-08-02 | 1997-04-03 | Mannesmann Ag | Plattenkokille zur Erzeugung von Strängen aus Stahl |
-
1997
- 1997-05-31 DE DE19722877A patent/DE19722877C2/de not_active Expired - Fee Related
-
1998
- 1998-05-21 US US09/082,884 patent/US6152209A/en not_active Expired - Fee Related
- 1998-05-25 ES ES98109430T patent/ES2170980T3/es not_active Expired - Lifetime
- 1998-05-25 DE DE59802779T patent/DE59802779D1/de not_active Expired - Lifetime
- 1998-05-25 AT AT98109430T patent/ATE211417T1/de not_active IP Right Cessation
- 1998-05-25 EP EP98109430A patent/EP0881018B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0881018A2 (de) | 1998-12-02 |
DE59802779D1 (de) | 2002-02-28 |
DE19722877A1 (de) | 1998-12-03 |
US6152209A (en) | 2000-11-28 |
EP0881018A3 (de) | 1999-01-07 |
ATE211417T1 (de) | 2002-01-15 |
DE19722877C2 (de) | 1999-09-09 |
ES2170980T3 (es) | 2002-08-16 |
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