EP1819463A1 - Verfahren zur erhöhung der lebensdauer der breitseitenwände einer verstellkokille - Google Patents
Verfahren zur erhöhung der lebensdauer der breitseitenwände einer verstellkokilleInfo
- Publication number
- EP1819463A1 EP1819463A1 EP05783651A EP05783651A EP1819463A1 EP 1819463 A1 EP1819463 A1 EP 1819463A1 EP 05783651 A EP05783651 A EP 05783651A EP 05783651 A EP05783651 A EP 05783651A EP 1819463 A1 EP1819463 A1 EP 1819463A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- side walls
- gießmittenachse
- mold
- displacement
- 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
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls
-
- 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
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
-
- 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
- B22D11/14—Plants for continuous casting
-
- 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
- B22D11/168—Controlling or regulating processes or operations for adjusting the mould size or mould taper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Definitions
- the invention relates to a method for increasing the service life of the broad side walls of an adjustment mold formed by broad side walls and narrow side walls in a continuous casting plant for continuous casting of a metal strand.
- the casting center axis is defined in the mold by equal distances to the narrow side walls and this G discernmittenachse continues in conventional continuous casting even in the middle of the strand emerging from the continuous casting mold and the strand guide of the casting continuous cast metal strand. It is therefore located in a plant longitudinal level. Now, if the G manmittenachse offset from its original position of a central plant longitudinal plane parallel to itself by a small amount, so the mold leaving the mold is offset by this small amount off-center promoted by the strand guide of the continuous casting.
- the shifting of the casting center axis takes place by a synchronous displacement of the narrow side walls in the same direction between the broad side walls of the adjusting mold.
- the already existing in an adjustment mold preferably hydraulically operated and controlled from the plant control level from adjusting used.
- the continuous shifting of the casting center axis takes place between two predetermined range limits. Due to the continuous shifting of the casting center axis during the entire casting time within these range limits, there is a substantially uniform wear on the broad side walls of the mold in the areas that is coated by the edges of the narrow side walls. These range limits are defined in the computer program that controls the adjustment process.
- the distance of the region boundaries is preferably between 10 mm and 50 mm.
- the displacement movement of the G manmittenachse between the area boundaries and thus the narrow side walls along the broad side walls follows a steady curve, preferably a sinusoidal curve. However, other curves can be selected.
- a second possible embodiment of the method according to the invention is achieved in that a plurality of operating points for the positioning of the G manmittenachse are set for discontinuous shifting of G manmittenachse between the narrow side walls and that after reaching a certain level of wear on the broad side wall at an operating point G manmittenachse is assigned to a new operating point.
- At least one further operating point is provided on each side of this central operating point, ie
- the distance between adjacent operating points is expediently at least between 5 mm and 50 mm.
- the displacement movement between two operating points follows a continuous curve, preferably a sinusoid curve.
- a continuous curve preferably a sinusoid curve.
- other curves can be selected.
- the particular wear value through wear determining factors such as casting time, casting length, batch number, casting speed, or similar factors, as the melt temperature, strand thickness and other factors are significant Influence on the formation of the strand edge, in particular its temperature, in the exit region of the mold and thus on the intensity of wear.
- the filling of the adjustment mold with molten metal should be carried out centrally, so that the melt distribution and the flow conditions in the mold run substantially symmetrically and thus the cooling conditions are kept uniform.
- the shifting of the casting center axis causes a slightly asymmetric melt supply, which hardly affects the flow conditions.
- the supply of melt from the intermediate vessel arranged above the adjusting mold can be aligned with the position of the casting center axis.
- the orientation of the supply of melt by a synchronous with the G manmittenachse taking place lateral displacement of the tundish takes place.
- This calibration can be performed with the standard equipment provided on the continuous caster.
- the position change of G manmittenachse is automatically performed by the process control system of the continuous casting.
- the process computer assigned to the process control system has access to all essential data influencing factors that cause the wear with different intensity and can determine the optimum time for the displacement of the G manmittenachse with a matching mathematical model and give appropriate control signals to the adjustment of the narrow side walls of the adjustment.
- control room of the continuous casting plant can manually intervene in the process control system and a control signal for shifting the casting center axis can be generated.
- a preferred field of application of this invention is steel continuous casting.
- FIG. 2 shows a broad side wall of an adjustment mold with the wear patterns with a continuous displacement movement of the casting center axis between two area boundaries according to a first embodiment of the invention
- Fig. 3 is a broad side wall of an adjustment mold with the wear patterns at three operating points of the casting center axis according to the invention according to a second embodiment of the invention.
- FIG. 1 is an adjustment mold 1 in a continuous casting with broad side walls 2, 3 and with this between the wide side walls clamped arranged narrow side walls 4, 5 shown schematically.
- Each narrow side wall is assigned two adjusting devices 6, 7 and 8, 9 arranged one above the other, with which the narrow side walls can be set to predetermined casting widths B and to a pouring-width-dependent casting cone in accordance with the production program.
- the adjusting devices preferably comprise controllable pressure medium cylinders, which are controlled by a process computer on the plant control level 10.
- the two narrow side walls 4, 5 are arranged symmetrically to G cummittenachse 11. If only one submersible pouring tube 12 is provided for the supply of melt, the supply of melt takes place in alignment with the pouring center axis 11.
- the casting center axis 11 continues below the adjusting mold 1 in the casting direction through the strand guide, not shown, of the continuous casting plant.
- FIG. 2 shows a wide side wall 2 with the wide wedge-shaped wear marks 14 occurring on the melt-side surface when using a first embodiment of the method according to the invention for a long casting duration with a constant casting width.
- two virtual range limits G 1 , G 2 are provided, which are determined in a mathematical model and retrievable from the process computer. Based on a central casting center axis 11 0, casting area axes 1 I 1 and 11 2 are assigned at the same distance to these area boundaries, at which orientation the position of the narrow side walls, not shown here, is oriented. Accordingly, a metal strand emerges from the adjusting mold, which in its positioning in the mold guide subsequent to the mold is fixed in its maximum deflections by the position-related casting widths B 1 and B 2 .
- the cast strand emerges from the Mold with a narrow side position, which follows a sine curve 17 with a large wavelength and corresponds to the continuous narrow side movement in the mold. Due to the pendulum movement of the casting center axis in the adjustment range between the range limits, there is a comparatively low and largely uniform wear on the broad side walls, whereby the service life of the broad side walls is substantially increased.
- FIG. 3 shows a broad side wall 2 with the wedge-shaped wear marks occurring on the melt-side surface when using a second embodiment of the method according to the invention for a long casting duration with a constant casting width.
- three virtual operating points Po, Pi, P 2 are provided, which are determined in a mathematical model and retrievable from the process computer. Casting center axes 11 0 , 11 i, H 2 are associated with these operating points, at which point the positions of the narrow side walls (not shown here) are oriented. Accordingly, a metal strand emerges from the adjusting mold, which in its positioning in the strand guide subsequent to the mold is fixed by the position-related casting widths B 0 , B 1 and B 2 .
- the operating point P 0 which corresponds to the centered standard setting of a continuous casting plant, is assigned to the casting center axis 11 0 , in which the cast metal strand enters centrically with the position B 0 in the strand guide 13 indicated by dot-dash lines.
- wear marks 14 which extend from the edges 14a in the direction of the casting center axis 11 0 occur .
- the edge 14a is formed substantially along the line of contact of the narrow side wall with the broad side wall of the adjustment mold by the frictional action of the edge region of the forming cast strand on the broad side wall.
- wear marks 15 are formed at the operating point Pi and wear marks 16 at the operating point P 2 . Overall, the total wear on the wide side wall is evened out and minimized by the shifting of the casting center axis 11 between the operating points P 0 , Pi, P 2 and thus substantially increases the service life of the broad side walls.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
- Road Signs Or Road Markings (AREA)
- Pens And Brushes (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0170704A AT500814B1 (de) | 2004-10-13 | 2004-10-13 | Verfahren zur erhöhung der lebensdauer der breitseitenwände einer verstellkokille |
PCT/EP2005/010032 WO2006042603A1 (de) | 2004-10-13 | 2005-09-16 | Verfahren zur erhöhung der lebensdauer der breitseitenwände einer verstellkokille |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1819463A1 true EP1819463A1 (de) | 2007-08-22 |
EP1819463B1 EP1819463B1 (de) | 2008-07-09 |
Family
ID=35276357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05783651A Not-in-force EP1819463B1 (de) | 2004-10-13 | 2005-09-16 | Verfahren zur erhöhung der lebensdauer der breitseitenwände einer verstellkokille |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1819463B1 (de) |
KR (1) | KR20070073901A (de) |
CN (1) | CN100592944C (de) |
AT (2) | AT500814B1 (de) |
DE (1) | DE502005004678D1 (de) |
WO (1) | WO2006042603A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104801683A (zh) * | 2015-04-17 | 2015-07-29 | 钢铁研究总院 | 一种降低板坯结晶器在线调宽阻力的窄面铜板 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT506673B1 (de) | 2008-05-13 | 2012-07-15 | Siemens Vai Metals Tech Gmbh | Verfahren zur kühlmittelaufbringung auf einen gegossenen metallstrang in einer stranggiessanlage und stranggiessanlage dazu |
CN113523207A (zh) * | 2021-08-19 | 2021-10-22 | 常州市发振机械股份有限公司 | 一种可拼装的钢锭模 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216449B2 (de) * | 1972-08-14 | 1977-05-10 | ||
DE3604818A1 (de) * | 1986-02-15 | 1987-08-20 | Mannesmann Ag | Motorsteuerung fuer die verstellung einer schmalseitenplatte von stranggiesskokillen fuer metall, insbesondere fuer stahl |
DE3908328A1 (de) * | 1989-03-10 | 1990-09-13 | Mannesmann Ag | Einrichtung zur regelung der konizitaet |
EP0448752B1 (de) * | 1990-03-27 | 1995-05-24 | Siemens Aktiengesellschaft | Einrichtung zur Lageregelung von Maschinenteilen in Hüttenwerken |
JP2639758B2 (ja) * | 1991-08-01 | 1997-08-13 | 新日本製鐵株式会社 | スラブ連続鋳造のスタート方法 |
DE19748305A1 (de) * | 1997-10-31 | 1999-05-06 | Schloemann Siemag Ag | Stranggießkokille |
DE19756164A1 (de) * | 1997-12-17 | 1999-06-24 | Km Europa Metal Ag | Verfahren zur Herstellung eines Kokillenkörpers und Kokillenkörper |
DE19933026A1 (de) * | 1999-07-15 | 2001-01-18 | Sms Demag Ag | Stranggießkokille |
-
2004
- 2004-10-13 AT AT0170704A patent/AT500814B1/de not_active IP Right Cessation
-
2005
- 2005-09-16 WO PCT/EP2005/010032 patent/WO2006042603A1/de active IP Right Grant
- 2005-09-16 DE DE502005004678T patent/DE502005004678D1/de active Active
- 2005-09-16 AT AT05783651T patent/ATE400381T1/de not_active IP Right Cessation
- 2005-09-16 KR KR1020077010754A patent/KR20070073901A/ko not_active Application Discontinuation
- 2005-09-16 EP EP05783651A patent/EP1819463B1/de not_active Not-in-force
- 2005-09-16 CN CN200580035103A patent/CN100592944C/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006042603A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104801683A (zh) * | 2015-04-17 | 2015-07-29 | 钢铁研究总院 | 一种降低板坯结晶器在线调宽阻力的窄面铜板 |
Also Published As
Publication number | Publication date |
---|---|
WO2006042603A1 (de) | 2006-04-27 |
AT500814A1 (de) | 2006-04-15 |
AT500814B1 (de) | 2006-11-15 |
KR20070073901A (ko) | 2007-07-10 |
DE502005004678D1 (de) | 2008-08-21 |
CN101039765A (zh) | 2007-09-19 |
EP1819463B1 (de) | 2008-07-09 |
ATE400381T1 (de) | 2008-07-15 |
CN100592944C (zh) | 2010-03-03 |
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