EP0992304A1 - Verfahren zum Messen und Regeln von Temperatur und Menge von Kühlwasser für wasserkühlbare Kokillenwände einer Stranggiesskokille - Google Patents
Verfahren zum Messen und Regeln von Temperatur und Menge von Kühlwasser für wasserkühlbare Kokillenwände einer Stranggiesskokille Download PDFInfo
- Publication number
- EP0992304A1 EP0992304A1 EP99116306A EP99116306A EP0992304A1 EP 0992304 A1 EP0992304 A1 EP 0992304A1 EP 99116306 A EP99116306 A EP 99116306A EP 99116306 A EP99116306 A EP 99116306A EP 0992304 A1 EP0992304 A1 EP 0992304A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- cooling
- temperature
- cooling water
- mold
- 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 12
- 238000000034 method Methods 0.000 title claims description 7
- 238000009749 continuous casting Methods 0.000 title claims description 3
- 230000001105 regulatory effect Effects 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 230000008020 evaporation Effects 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims description 4
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
Definitions
- the invention relates a method for measuring and controlling temperature and quantity of per unit time by water-coolable, especially from each other Independent mold walls made of cooling water flowing through copper plates a continuous casting mold, the cooling water temperature a mold wall in at least two places in the area of the drain openings a copper plate and the associated water tank is measured.
- the process is operated in such a way that cooling water inlet holes interacting the water supply in cooling channels of the mold wall form while the sum of drain holes of the cooling channels taken together form the water drain, the inlet temperature of the cooling water, the difference between the inlet and outlet temperatures determined and from the amount of cooling water per unit of time partial integral heat dissipation from a mold or from a Mold wall area determined and a temperature profile created and temperature profiles obtained in time intervals with each other compared and partial inequalities through partial quantity corrections of the cooling water are balanced.
- the flow velocity is usually used and the water pressure on the outlet side of the Water cooling system chosen so that for the hottest point of the The temperatures on the surface of the cooling channel below the mold Boiling temperature of the water according to the outlet pressure. This results on the surface of the strand in the area of Bath level a different heat load, which leads to different Melting behavior of the mold powder and thus too Irregularities in the training of the still very sensitive Strand shell leads.
- the additional registration is based on the task of the procedure of the main patent (patent application 197 22 877) further train and improve and through targeted cooling a Equalization of the temperature distribution in the area of the bath level of molds, in particular molds for casting thinner Slabs to achieve.
- the object is achieved with the invention in that the Flow rate and the water pressure of the cooling system so be set so that the lowest temperature in the range of Water outlet side or the water outlet opening of a copper plate at the boiling point, and that for everyone bubble evaporation during supercooled boiling at higher temperatures of the cooling water is excited.
- the measure Be made use of that the flow rate and the Coolant pressure in the cooling channels can be set constantly, such that an increased heat load by a corresponding increased bubble evaporation is compensated.
- the process is illustrated on the basis of a graphical representation, the heat flow density being plotted on the ordinate over the superheating temperature on the abscissa of the diagram and W standing for the water velocity.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims (2)
- Verfahren zum Messen und Regeln von Temperatur und Menge des pro Zeiteinheit durch wasserkühlbare, insbesondere voneinander unabhängige Kokillenwände aus Kupferplatten durchströmenden Kühlwassers einer Stranggießkokille, wobei die Kühlwassertemperatur einer Kokillenwand an wenigstens zwei Stellen im Bereich der Ablauföffnung einer Kupferplatte und dem zugeordneten wasserkasten gemessen wird,
dadurch gekennzeichnet,
daß die Strömungsgeschwindigkeit und der Wasserdruck des Kühlsystems im Bereich der Wasser-Austrittsseite bzw. der Wasser-Ablauföffnungen einer Kupferplatte so eingestellt werden, daß die niedrigste Temperatur IM Bereich des Wasserauslaufs an der Grenze der Siedetemperatur liegt, und daß für alle höheren Temperaturen eine Blasenverdampfung beim unterkühlten Sieden des Kühlwassers angeregt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Strömungsgeschwindigkeit und der Kühlmitteldruck in den Kühlkanälen konstant eingestellt werden, derart, daß eine erhöhte Wärmebelastung durch eine entsprechend erhöhte Blasenverdampfung kompensiert wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998138331 DE19838331A1 (de) | 1997-05-31 | 1998-08-24 | Verfahren zum Messen und Regeln von Temperatur und Menge von Kühlwasser für wasserkühlbare Kokillenwände einer Stranggießkokille |
DE19838331 | 1998-08-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0992304A1 true EP0992304A1 (de) | 2000-04-12 |
EP0992304B1 EP0992304B1 (de) | 2003-10-01 |
Family
ID=7878485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99116306A Expired - Lifetime EP0992304B1 (de) | 1998-08-24 | 1999-08-19 | Verfahren zum Messen und Regeln von Temperatur und Menge von Kühlwasser für wasserkühlbare Kokillenwände einer Stranggiesskokille |
Country Status (4)
Country | Link |
---|---|
US (1) | US6415850B1 (de) |
EP (1) | EP0992304B1 (de) |
AT (1) | ATE250998T1 (de) |
DE (1) | DE59907176D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1491275A1 (de) * | 2003-06-27 | 2004-12-29 | SMS Demag Aktiengesellschaft | Verfahren und Messanordnung zum Erkennen von Blasensieden in den Kühlkanälen einer Stranggiesskokille |
Citations (5)
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 |
DE4117073A1 (de) * | 1991-05-22 | 1992-11-26 | Mannesmann Ag | Temperaturmessung brammenkokille |
WO1997004900A1 (de) * | 1995-08-02 | 1997-02-13 | Mannesmann Ag | Plattenkokille zur erzeugung von strängen aus stahl |
DE19722877A1 (de) * | 1997-05-31 | 1998-12-03 | Schloemann Siemag Ag | Verfahren und Vorrichtung zum Messen und Regeln von Temperatur und Menge von Kühlwasser für wasserkühlbare Kokillenwände einer Stranggießkokille |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4749023A (en) * | 1986-04-30 | 1988-06-07 | Westinghouse Electric Corp. | Cooling system for continuous metal casting machines |
-
1999
- 1999-08-19 AT AT99116306T patent/ATE250998T1/de not_active IP Right Cessation
- 1999-08-19 DE DE59907176T patent/DE59907176D1/de not_active Expired - Lifetime
- 1999-08-19 US US09/377,351 patent/US6415850B1/en not_active Expired - Fee Related
- 1999-08-19 EP EP99116306A patent/EP0992304B1/de not_active Expired - Lifetime
Patent Citations (6)
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 |
DE4117073A1 (de) * | 1991-05-22 | 1992-11-26 | Mannesmann Ag | Temperaturmessung brammenkokille |
WO1997004900A1 (de) * | 1995-08-02 | 1997-02-13 | Mannesmann Ag | Plattenkokille zur erzeugung von strängen aus stahl |
DE19529931C1 (de) * | 1995-08-02 | 1997-04-03 | Mannesmann Ag | Plattenkokille zur Erzeugung von Strängen aus Stahl |
DE19722877A1 (de) * | 1997-05-31 | 1998-12-03 | Schloemann Siemag Ag | Verfahren und Vorrichtung zum Messen und Regeln von Temperatur und Menge von Kühlwasser für wasserkühlbare Kokillenwände einer Stranggießkokille |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1491275A1 (de) * | 2003-06-27 | 2004-12-29 | SMS Demag Aktiengesellschaft | Verfahren und Messanordnung zum Erkennen von Blasensieden in den Kühlkanälen einer Stranggiesskokille |
Also Published As
Publication number | Publication date |
---|---|
US6415850B1 (en) | 2002-07-09 |
DE59907176D1 (de) | 2003-11-06 |
ATE250998T1 (de) | 2003-10-15 |
EP0992304B1 (de) | 2003-10-01 |
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