EP0881018A2 - Procédé et dispositif pour mesurer et ajuster la température et la quantité d'eau de refroidissement pour parois de lingotières de coulée continue refroidies par eau - Google Patents
Procédé et dispositif pour mesurer et ajuster la température et la quantité d'eau de refroidissement pour parois de lingotières de coulée continue refroidies par eau Download PDFInfo
- Publication number
- EP0881018A2 EP0881018A2 EP98109430A EP98109430A EP0881018A2 EP 0881018 A2 EP0881018 A2 EP 0881018A2 EP 98109430 A EP98109430 A EP 98109430A EP 98109430 A EP98109430 A EP 98109430A EP 0881018 A2 EP0881018 A2 EP 0881018A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- cooling water
- temperature
- water
- area
- 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
- 239000000498 cooling water Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009749 continuous casting Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract 2
- 238000005266 casting Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims 2
- 238000001816 cooling Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 9
- 238000007654 immersion Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012549 training Methods 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
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009474 immediate action Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 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
- 230000010355 oscillation Effects 0.000 description 1
- 239000000843 powder Substances 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
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 method for measuring and controlling Temperature and amount of water cooling per unit of time, in particular, independent mold walls made of copper plates flowing cooling water of a continuous casting mold.
- the invention also relates to an apparatus for performing the method.
- Your education depends on a number of interacting ones Factors such as casting speed, steel temperature, material, Strand geometry, immersion mold, conicity of the mold as well the type and composition of a slag-forming lubricant, that, applied to the mold level, the inevitable Reduce friction between the strand shell and the mold.
- the lubricant is evenly distributed in the area of the mold walls, this in the form of a so-called a so-called mold powder applied to the mold level, thereby melted and by oscillating movements of the molten steel between these and the mold walls.
- a so-called mold powder applied to the mold level, thereby melted and by oscillating movements of the molten steel between these and the mold walls.
- One if possible even spread of the lubricant between the itself forming strand shell and the mold walls is related with the heat transfer conditions between the strand shell and the mold wall of particular importance.
- the prior art includes a number of configurations and Measures known to ensure safe continuous casting without the aforementioned Ensuring disadvantages and difficulties.
- E.g. is over DE 24 15 224 C3 discloses a plate mold for slabs, the Chill walls have cooling chambers, each with delimited cooling areas include.
- To the inlet and outlet pipes for cooling water Broad side walls are measuring elements for determining the discharged Heat quantity or the cooling capacities arranged. With the help of this Measuring elements become an average value of the cooling capacity of the cooling chambers calculates which is sent to an average educator, with which the conicity of the narrow sides is controlled.
- the disadvantage here is that the molds differentiated Information about the partial heat flows along the mold width not be made. This is also disadvantageous because for the safe casting of slabs and especially thin slabs a determination at comparatively high casting speeds differentiated specific heat transfers in the area of the broadsides and especially in the middle of the slab in the area of the dip tube is not made. Only if you know these specific heat transfers can regulate the heat flows over the entire Mold wide side and thus reached over the entire slab side be to disturbances in particular due to uneven training to avoid the strand shell.
- the present invention is based on the aforementioned prior art the task of a method and an apparatus in a Specify mold of the type mentioned in the preamble of claim 1, which are suitable to melt inside the mold forming heat flows by means of sensitive, differentiated Measurements of the heat flows corresponding to these of the Cooling water flowing through mold walls without any time delay to capture in order to get control impulses for adjustment in time undesirable heat exchange conditions, especially with regard to derive the formation of the strand shell in the area of the mold walls.
- the solution to this is a method for measuring and controlling temperature and amount of cooling water of the type mentioned with the invention provided that the cooling water temperature of a mold wall at least two places in the area of the drain openings of a copper plate and the associated water tank measured and from the above the width of the copper plate measured values a temperature profile created and temperature profiles obtained with each other in time intervals be compared.
- the procedure enables a differentiated statement about the Distribution of partial heat flows along the mold width and thus a simple and safe temperature control of the wall Heat flows of the melt within the mold including the Broadside center in the area of the immersion tube or immersion spout.
- the process enables the width of a mold and especially in the area of the diving spout compared to the remaining parts of the broad sides and one to the narrow sides extremely sensitive and uniform cooling performance and to avoid disturbances caused, for example, by flow shadows due to the immersion spout, due to non-uniform lubricating film thickness, high Membrane effect of the strand shell in the middle of the slab and through Turbulence of the casting mirror caused across the slab width can be.
- a liquid-cooled plate mold according to the Preamble of claim 1 generic type, in particular for Implementation of the method according to the invention is characterized in that in the water drainage area between a copper plate and the cooling water drain openings of the water tank in particular Temperature sensor at least at two points per broad side plate arranged and the signal lines to a computer, preferably with an online screen.
- the water drainage openings are evenly between the copper plate and water tank in the mold width distributed and each for the passage of one constant, equal amount of water.
- Use of the method and the device according to the invention is used for both the production of thin slabs from steel Strand thicknesses between preferably 40 and 150 mm at comparative high casting speeds as well as billet molds for continuous casting of rectangular or round-shaped continuous casting profiles.
- Fig. 1 shows a mold broad side wall made of copper 1 with a surface part 3 facing the molten metal bath 2.
- the solid copper wall is followed by coolant holes 4 arranged, the flow of cooling water flows from bottom to top are. These open into a collecting channel on the upper side 10, which by means of holes 5 in a water tank 7th transfers. This is with the plate-shaped elements 6 and 11 the water box 7 formed.
- thermal coupling 8 in the form of a copper longitudinal bar with channels for receiving of the signal lines leading to the individual thermal sensors 20 (FIG. 2) 9.
- the thermal coupling can, for example, be an independent assembly be the individual thermocouples 20 with their signal lines 9 records. It can be used with TP 100 silicone in the corner area be attached to the wall part 6 in such a way that it with at least two areas in the flow area of the coolant. A hole can also be drilled through the water tank in each measuring point upper area, which are then from the outside with a Sensor can be provided.
- Fig. 2 shows the surface part 3 of a plate mold with a variety of cooling water drain holes 5 according to the invention in the upper Area of the broad side wall 1 in a horizontal projection to both Sides of the dip tube 21.
- In the lower area of the broad side wall 1 are in close succession for the supply of cooling water and 5 inlet bores each in a vertical plane with the drain bores 15, also on both sides of the mold wall median plane v-v.
- the holes 15 cooperate to 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 water drain 25.
- Right and left of the median plane v-v are the lateral termination of the broad side wall 1 forming narrow side walls 22 and 23.
- Between two water drain holes 5, the thermal sensor 20 is installed. In doing so each with two water drain holes 5 arranged next to each other two water inlet holes arranged in the same vertical plane 15 each have a flow field A, B, C, D or A ', B', C ', D
- FIG. 3 shows a three-dimensional diagram with the representation of Temperature profiles, measured in each case across the width A 'to D.
- Slab mold plate with, for example, four times apart and temperature profiles to be compared with one another in time Intervals of ten time units each according to the time axis Z.
- the width of the mold plate is on the abscissa x-x and the value of the measured heat transfer is plotted on the ordinate Y.
- the Representation corresponds, for example, to a diagram on the screen of the Computer and enables immediate evaluation or adjustment in the event of a deviation from a predetermined temperature profile.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722877 | 1997-05-31 | ||
DE19722877A DE19722877C2 (de) | 1997-05-31 | 1997-05-31 | Flüssigkeitsgekühlte Stranggießkokille |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0881018A2 true EP0881018A2 (fr) | 1998-12-02 |
EP0881018A3 EP0881018A3 (fr) | 1999-01-07 |
EP0881018B1 EP0881018B1 (fr) | 2002-01-02 |
Family
ID=7831056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109430A Expired - Lifetime EP0881018B1 (fr) | 1997-05-31 | 1998-05-25 | Lingotières de coulée continue refroidies par eau |
Country Status (5)
Country | Link |
---|---|
US (1) | US6152209A (fr) |
EP (1) | EP0881018B1 (fr) |
AT (1) | ATE211417T1 (fr) |
DE (2) | DE19722877C2 (fr) |
ES (1) | ES2170980T3 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1070560A1 (fr) * | 1999-07-17 | 2001-01-24 | SMS Demag AG | Procédé pour réguler la vitesse de passage de l'eau de refroidissement à travers les parois larges de lingotières de coulée continue |
EP1149648A1 (fr) * | 2000-04-25 | 2001-10-31 | SMS Demag AG | Procédé et dispositif pour le contrôle thermique d'une lingotière de coulée continue |
EP1491275A1 (fr) * | 2003-06-27 | 2004-12-29 | SMS Demag Aktiengesellschaft | Procedé et dispositif de mesure pour la détection d'ébullition dans les canaux de refroidissement d'une coquille de coulée continue |
WO2008052689A1 (fr) * | 2006-11-02 | 2008-05-08 | Sms Demag Ag | Procédé et dispositif de régulation de l'évacuation de chaleur d'une plaque latérale d'une lingotière |
Families Citing this family (8)
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 |
ATE243589T1 (de) * | 1998-12-22 | 2003-07-15 | Sms Demag Ag | Verfahren und vorrichtung zum stranggiessen von brammen |
DE19916190C2 (de) * | 1998-12-22 | 2001-03-29 | Sms Demag Ag | Verfahren und Vorrichtung zum Stranggießen von Brammen |
EP1193493A1 (fr) * | 2000-09-29 | 2002-04-03 | Infineon Technologies SC300 GmbH & Co. KG | Procédé et dispositif pour mesurer et contrôler la teneur en eau dans une solution aqueuse |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2415224A1 (de) * | 1973-03-30 | 1974-10-10 | Concast Ag | Verfahren und vorrichtung zum steuern der kuehlleistung von schmalseitenwaenden bei plattenkokillen beim stranggiessen |
DE3423475A1 (de) * | 1984-06-26 | 1984-11-29 | Mannesmann AG, 4000 Düsseldorf | Verfahren und einrichtung zum stranggiessen von fluessigen metallen, insbesondere von fluessigem stahl |
WO1997004900A1 (fr) * | 1995-08-02 | 1997-02-13 | Mannesmann Ag | Moule en fonte pour plaques permettant de produire des barres d'acier |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
-
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 DE DE59802779T patent/DE59802779D1/de not_active Expired - Lifetime
- 1998-05-25 ES ES98109430T patent/ES2170980T3/es not_active Expired - Lifetime
- 1998-05-25 EP EP98109430A patent/EP0881018B1/fr not_active Expired - Lifetime
- 1998-05-25 AT AT98109430T patent/ATE211417T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2415224A1 (de) * | 1973-03-30 | 1974-10-10 | Concast Ag | Verfahren und vorrichtung zum steuern der kuehlleistung von schmalseitenwaenden bei plattenkokillen beim stranggiessen |
DE3423475A1 (de) * | 1984-06-26 | 1984-11-29 | Mannesmann AG, 4000 Düsseldorf | Verfahren und einrichtung zum stranggiessen von fluessigen metallen, insbesondere von fluessigem stahl |
WO1997004900A1 (fr) * | 1995-08-02 | 1997-02-13 | Mannesmann Ag | Moule en fonte pour plaques permettant de produire des barres d'acier |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1070560A1 (fr) * | 1999-07-17 | 2001-01-24 | SMS Demag AG | Procédé pour réguler la vitesse de passage de l'eau de refroidissement à travers les parois larges de lingotières de coulée continue |
EP1149648A1 (fr) * | 2000-04-25 | 2001-10-31 | SMS Demag AG | Procédé et dispositif pour le contrôle thermique d'une lingotière de coulée continue |
EP1491275A1 (fr) * | 2003-06-27 | 2004-12-29 | SMS Demag Aktiengesellschaft | Procedé et dispositif de mesure pour la détection d'ébullition dans les canaux de refroidissement d'une coquille de coulée continue |
WO2008052689A1 (fr) * | 2006-11-02 | 2008-05-08 | Sms Demag Ag | Procédé et dispositif de régulation de l'évacuation de chaleur d'une plaque latérale d'une lingotière |
Also Published As
Publication number | Publication date |
---|---|
US6152209A (en) | 2000-11-28 |
EP0881018A3 (fr) | 1999-01-07 |
DE19722877C2 (de) | 1999-09-09 |
ATE211417T1 (de) | 2002-01-15 |
EP0881018B1 (fr) | 2002-01-02 |
ES2170980T3 (es) | 2002-08-16 |
DE59802779D1 (de) | 2002-02-28 |
DE19722877A1 (de) | 1998-12-03 |
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