CN101039765A - Method for prolonging the serviceable life of the broad side walls of a mold - Google Patents
Method for prolonging the serviceable life of the broad side walls of a mold Download PDFInfo
- Publication number
- CN101039765A CN101039765A CNA2005800351030A CN200580035103A CN101039765A CN 101039765 A CN101039765 A CN 101039765A CN A2005800351030 A CNA2005800351030 A CN A2005800351030A CN 200580035103 A CN200580035103 A CN 200580035103A CN 101039765 A CN101039765 A CN 101039765A
- Authority
- CN
- China
- Prior art keywords
- casting
- central axis
- side walls
- ingot mould
- broad side
- 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
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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
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- 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)
Abstract
The invention relates to a method for prolonging the serviceable life of the broad side walls of a mold, which is formed from broad side walls and narrow side walls, in a continuous casting installation for continuously casting a metal casting. In order to significantly prolong the serviceable life of a mold, in particular, for casting long sequences with the same casting width, the invention provides that a casting center axis is defined at the center between the narrow side walls, and the casting center axis continuously or discontinuously moves parallel to itself during casting.
Description
Technical field
The present invention relates to a kind of broad side walls method of life that is used to improve adjustable ingot mould, this adjustable ingot mould constitutes at the continuous casting installation for casting that is used for the continuously casting metal foundry goods and by broad side walls and narrow sidewall.
Background technology
Under the influence of the continuous casting billet shell that high-temperature metal liquation and ingot mould sidewall are set up along the casting direction, can cause the appearance of ingot mould inwall to be worn and torn with relevant the moving of metal casting by ingot mould.This fret wear continues to increase along the direction of ingot mould outlet side.
The ingot mould inwall is built by copper or copper alloy usually, and in order to reduce the wearing and tearing to it, known for a long time way is to be equipped with the protective layer that can reduce to wear and tear for the ingot mould sidewall of contacting metal liquation and contact continuous casting billet shell.For example be known that from EP 924 010 A1 that being equipped with quality to the ingot mould sidewall is the wear-resistant layer of chromium, the copper alloy that the ingot mould sidewall was handled by precipitation-hardening is formed, and makes the ingot mould sidewall bear further sclerosis.In order to strengthen the effect that reduces to rub at ingot mould outlet side, at US 4,688, suggestion in 320 is provided with the nickel dam face in especially easily frayed zone, compare with other zone, and higher heat is born in these zones of ingot mould.
Continuous casting installation for casting is equipped with adjustable ingot mould, adjustable ingot mould is used for casting and has the metal casting of different width cast, when the metal casting with identical width cast is cast by continuous casting installation for casting, occur the wearing and tearing of enhancing in the edge extent of broad side walls and narrow sidewall along the zone of edge process, wearing and tearing are to produce by the friction of foundry goods edge in broad side walls place and narrow side-walls.As mentioned above, under the known technology level, the formation of these wearing and tearing shows the measure that it is had no backing and reduces wear.It is thick that the wear mark of sensing foundry goods throughput direction can reach 3mm, and cause the mass loss of foundry goods in size change over (bigger casting width), also might cause ingot mould thoroughly to damage.
Summary of the invention
For these reasons, task of the present invention is a kind of method of suggestion under the prior art condition, can make the prolongation that especially is able to the service life of adjustable ingot mould in essence by this method with the long-term direct casting of identical casting width the time.
This task is solved by following way according to invention, i.e. the definition casting of center between the narrow sidewall of adjustable ingot mould central axis, this casting central axis can be during casting continuously or intermittently be parallel to self and move.
The casting central axis is defined within the narrow sidewall of distance and has equal distance in ingot mould, in traditional continuous casting installation for casting, this casting central axis is along being extended by the foundry goods center of the metal casting of being cast, and the foundry goods center extends out and strand-guiding roller by casting unit from the continuous casting ingot mould.The casting central axis is arranged in the vertical plane of equipment accordingly.From this time, the casting central axis can be relevant to from its original position the central apparatus longitudinal section and oneself be moved a smaller value abreast, thus, the metal casting that comes out from ingot mould also can be moved a smaller value and be carried prejudicially by the strand-guiding roller of continuous casting installation for casting.
In the displacement of reality, make narrow sidewall along identical direction same moved further between the broad side walls of adjustable ingot mould, thereby realize moving of casting central axis.Can use the existing adjusting device of adjustable ingot mould, adjusting device is preferably the fluid pressure type transmission and is subjected to the control on equipment master control plane for this reason.
According to first possible inventive embodiments, the casting central axis is moved between two known zone boundaries continuously.In total casting duration, move continuously in the zone boundary by the central axis of will casting, thereby making to produce uniformly in the edge of narrow sidewall skims over the zone of ingot mould broad side walls weares and teares.This zone boundary is defined in and is used for adjusting in the calculation procedure of regulating operation.The distance of zone boundary is preferably between 10mm and the 50mm.
The narrow sidewall that move and thereupon produce of casting central axis between the zone boundary followed continuous curve distribution along broad side walls mobile, and this curve distributionization is preferably sine curve and distributes.Can certainly select other curve distribution.
Second possible inventive embodiments is,, stipulates the central axis of will casting a plurality of operating points that are used for casting central axis location for moving at intervals between narrow sidewall, when the attrition value at broad side walls place reached a definite attrition value in a certain operating point after, the casting central axis was assigned to a new operating point." attrition value of determining " means the critical lower limit of the wearing and tearing that are used for the conversion operating point here.Accord with the configuration of casting central axis in traditional adjustable ingot mould or the traditional continuous casting installation for casting in the operating point at center; each side of both sides at least also is provided with an operating point in addition near this central task point; that is to say that these operating points are defined in is used for adjusting in the calculation procedure of regulating operation; after the wearing and tearing of ingot mould in certain operating point arrived critical lower limit, other operating point was regulated successively.Thereby make the continuous working period that the local strong wearing and tearing that occur run through broad side walls be divided to wider zone and fundamentally improve the service life of broad side walls with this.Critical lower limit here is prescribed with following standard, does not promptly form the surface quality damage of metal casting as yet in the zone by wear mark.Distance between the adjacent operating point should be at least between 5mm and 50mm by purpose.
Continuous curve distribution is preferably followed in moving between two operating points, is preferably sine curve and distributes.Can certainly select other curve distribution.
Consider special local casting condition, and then can determine or the regulation attrition value by the variation that can determine to wear and tear according to purpose, for example by casting time, cast length, charging speed, casting rate or similar variation, because melt temperature, casting thickness and other factors bring intensity, the especially temperature of great influence and influence wearing and tearing thereupon can for the structure at foundry goods edge in the ingot mould exit region.
Should allow molten metal inject adjustable ingot mould from the centre according to purpose, thereby make that liquation distribution and proportion of flow keep symmetry as much as possible in ingot mould and make that the cooling condition maintenance is even.The mobile meeting of casting central axis causes a little asymmetric liquation conveying, and it can not have influence on proportion of flow substantially.Can be aligned to the conveying of liquation from the intermediate receptacle that is arranged on adjustable ingot mould top the position of casting central axis for fear of such influence.The aligning that liquation is carried is preferably implemented by intermediate receptacle and synchronous being displaced sideways of casting central axis.This calibration can be implemented by the device that standardization is located on the continuous casting facility.
After interrupting, casting must utilize dummy bar to reset in accordance with known methods the casting operation.As long as the place, operating point in the middle of the casting central axis is not adjusted to just is necessary the dummy head of dummy bar to be adjusted to the current location of casting central axis when restarting the foundry goods casting.
Have advantage, the conversion of casting central axis position is guided automatically by the Process Control System of continuous casting installation for casting.The process control computer that is included into Process Control System can be caught all significant datas of influence factor, they cause the wearing and tearing with varying strength, can provide optimum time point by the Mathematical Modeling with its coordination, time point is used to inquire about the displacement of casting central axis and the control signal of the narrow sidewall adjusting device of adjustable ingot mould correspondence.
With it similarly be, control signal can be input in the Process Control System artificially by the control panel of continuous casting installation for casting, and produces the control signal of the central axis displacement that is used to cast thus.
The preferred application of the present invention is the steel casting casting.
Description of drawings
During the embodiment of the now following not restriction of other advantage of foregoing invention and mark sheet described, they related to following any view:
Fig. 1 from top and along the longitudinal section of section line A-A according to the adjustable ingot mould of prior art,
Fig. 2 is according to first embodiment of invention, and the broad side walls of adjustable ingot mould and casting central axis continue the rubbing surface when mobile between two zone boundaries,
Fig. 3 is according to second embodiment of invention, and the broad side walls of adjustable ingot mould and three are according to the casting central axis operating points of invention.
The specific embodiment
In the displaying of Fig. 1, adjustable ingot mould 1 is shown with broad side walls 2,3 and is sandwiched in narrow sidewall 4,5 between the broad side walls in continuous casting installation for casting.Each narrow sidewall is assigned with two folded mutually each other adjusting devices 6,7 and 8,9 that are provided with, and relies on them to regulate narrow sidewall according to production routine, make its reach casting width B given in advance and with the relevant casting taper gradient of casting width.Adjusting device contains the transmission fluid cylinder of preferred tunable joint, and it is controlled by the process control computer on the equipment master control plane 10.Two narrow sidewalls 4,5th, symmetrically arranged about casting central axis 11.Only be provided with one be used to carry the dive cast tubes 12 of liquation in, the conveying of liquation with the casting central axis 11 form a line.Casting central axis 11 continue to extend and strand-guiding roller by the continuous casting installation for casting that further do not illustrated along the casting direction below adjustable ingot mould 1.
What Fig. 2 showed is broad side walls 2, and it has the wide wedge shape wear mark 14 that shows when first embodiment that uses method of the present invention casts for a long time with constant casting width on narrow side surface.On adjustable ingot mould, be provided with two virtual zone boundary G
1, G
2, they are defined in the Mathematical Modeling and can be called at any time by process control computer.These zone boundaries belong to and are positioned at middle casting central axis 11
0The casting central axis 11 that spacing equates
1With 11
2, the orientation for place of the narrow sidewall that is not illustrated here is in this central axis of casting.Owing to will take out metal casting from adjustable ingot mould, the peak excursion of metal casting in the location of the strand-guiding roller of following ingot mould is by the relevant casting width B in position
1With B
2Regulation.Taken out from ingot mould by narrow side position by the foundry goods of being cast, narrow side position is followed sine curve 17 with big wavelength and corresponding with continuous narrow side shifting in the ingot mould.Come and go in the adjustable extent of casting central axis between the zone boundary and move, thereby make, extensive uniformly wearing and tearing less relatively, is improved the service life of broad side walls in itself with this in the generation of broad side walls place.
What Fig. 3 showed is broad side walls 2, and it has the wedge shape wear mark that shows when second embodiment that uses method of the present invention casts for a long time with constant casting width on narrow side surface.On adjustable ingot mould, be provided with three virtual operating point P
0, P
1, P
2, they are defined in the Mathematical Modeling and can be called at any time by process control computer.These operating points belong to casting central axis 11
0, 11
1, 11
2, the orientation for place of the narrow sidewall that is not illustrated here is in this central axis of casting.Owing to will take out metal casting from adjustable ingot mould, metal casting is followed in the location of strand-guiding roller of ingot mould by the relevant casting width B in position at it
0, B
1With B
2Regulation.By the operating point P that is provided with corresponding to the continuous casting installation for casting central standard
0Can distribute casting central axis 11
0, by the metal casting of being cast at the center corresponding to position B
0Enter into by the represented strand-guiding roller 13 of chain-dotted line.In this case, wear mark 14 from limit 14a along the casting central axis 11
0Direction extend.Limit 14a is along the contact wire of narrow sidewall of adjustable ingot mould and broad side walls in itself, forms by the rubbing action of watering the foundry goods fringe region that produces on the broad side walls.The rest may be inferred, and wear mark 15 is at operating point P
1Middle formation, wear mark 16 is at operating point P
2Middle formation.Generally speaking, can be in total wearing and tearing at broad side walls place by casting central axis 11 at operating point P
0, P
1, P
2Between move and be able to balance and reduce, thereby make be improved in itself the service life of broad side walls.
Claims (11)
1. be used to improve broad side walls (2, the 3) method of life of adjustable ingot mould, this adjustable ingot mould is at the continuous casting installation for casting that is used for the continuously casting metal foundry goods and by broad side walls (2,3) and narrow sidewall (4,5) constitute, it is characterized in that, center definition casting central axis (11,11 between narrow sidewall
0, 11
1, 11
2), and allow this casting central axis continuously or intermittently during casting be parallel to self to move.
2. in accordance with the method for claim 1, wherein, the narrow sidewall that moves through between the broad side walls of casting central axis is realized with moved further.
3. according to claim 1 or 2 described methods, wherein, the moving continuously of casting central axis at two zone boundary (G
1, G
2) between carry out.
4. in accordance with the method for claim 3, wherein, mobile between the zone boundary followed continuous curve distribution, is preferably sine curve and distributes.
5. according to claim 1 or 2 described methods, wherein,, stipulated the operating point (P of a plurality of central axis location that are used to cast for the interruption of central axis between narrow sidewall of casting moves
0, P
1, P
2), and after reaching a definite attrition value an operating point on broad side walls, the casting central axis is assigned to a new operating point.
6. in accordance with the method for claim 5, wherein, mobile between two operating points followed continuous curve distribution, is preferably sine curve and distributes.
7. according to right 5 or 6 described methods, wherein, the attrition value of determining determines by determining the variation of wearing and tearing, for example casting time, cast length, charging speed, casting rate or similar variation.
8. according to the described method of one of aforementioned claim, wherein, the conveying of liquation is aligned to the position of casting central axis from the intermediate receptacle that is arranged on adjustable ingot mould top.
9. in accordance with the method for claim 8, wherein, the aligning that liquation is carried carries out with synchronous being displaced sideways of carrying out of casting central axis by intermediate receptacle.
10. according to the described method of one of aforementioned claim, wherein, the dummy head of dummy bar is adjusted to the current location of casting central axis when restarting the foundry goods casting.
11. according to the described method of one of aforementioned claim, wherein, the evolution of casting central axis is guided automatically by the process control computer of Process Control System (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0170704A AT500814B1 (en) | 2004-10-13 | 2004-10-13 | METHOD FOR INCREASING THE LIFE OF THE WIDE-SIDED WALLS OF AN ADJUSTING COCKILLE |
| ATA1707/2004 | 2004-10-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101039765A true CN101039765A (en) | 2007-09-19 |
| CN100592944C CN100592944C (en) | 2010-03-03 |
Family
ID=35276357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580035103A Expired - Fee Related CN100592944C (en) | 2004-10-13 | 2005-09-16 | Method for prolonging the serviceable life of the broad side walls of a mold |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1819463B1 (en) |
| KR (1) | KR20070073901A (en) |
| CN (1) | CN100592944C (en) |
| AT (2) | AT500814B1 (en) |
| DE (1) | DE502005004678D1 (en) |
| WO (1) | WO2006042603A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523207A (en) * | 2021-08-19 | 2021-10-22 | 常州市发振机械股份有限公司 | Steel ingot mould that can assemble |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506673B1 (en) | 2008-05-13 | 2012-07-15 | Siemens Vai Metals Tech Gmbh | METHOD FOR LIQUID HOLDING ON A CAST METAL STRUCTURE IN A CONTINUOUS CASTING SYSTEM AND CONTINUOUS CASTING SYSTEM THEREFOR |
| CN104801683A (en) * | 2015-04-17 | 2015-07-29 | 钢铁研究总院 | Narrow-side copper plate for reducing on-line width regulating resistance of plate blank crystallizer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5216449B2 (en) * | 1972-08-14 | 1977-05-10 | ||
| DE3604818A1 (en) * | 1986-02-15 | 1987-08-20 | Mannesmann Ag | MOTOR CONTROL FOR THE ADJUSTMENT OF A NARROW-SIDE PLATE OF CONTINUOUS CASTING MILLS FOR METAL, ESPECIALLY FOR STEEL |
| DE3908328A1 (en) * | 1989-03-10 | 1990-09-13 | Mannesmann Ag | CONICITY CONTROL DEVICE |
| DE59009148D1 (en) * | 1990-03-27 | 1995-06-29 | Siemens Ag | Device for position control of machine parts in iron and steel works. |
| JP2639758B2 (en) * | 1991-08-01 | 1997-08-13 | 新日本製鐵株式会社 | How to start slab continuous casting |
| DE19748305A1 (en) * | 1997-10-31 | 1999-05-06 | Schloemann Siemag Ag | Continuous casting mold |
| DE19756164A1 (en) * | 1997-12-17 | 1999-06-24 | Km Europa Metal Ag | Process for producing a mold body and mold body |
| DE19933026A1 (en) * | 1999-07-15 | 2001-01-18 | Sms Demag Ag | Continuous casting mold |
-
2004
- 2004-10-13 AT AT0170704A patent/AT500814B1/en not_active IP Right Cessation
-
2005
- 2005-09-16 CN CN200580035103A patent/CN100592944C/en not_active Expired - Fee Related
- 2005-09-16 AT AT05783651T patent/ATE400381T1/en not_active IP Right Cessation
- 2005-09-16 KR KR1020077010754A patent/KR20070073901A/en not_active Application Discontinuation
- 2005-09-16 EP EP05783651A patent/EP1819463B1/en not_active Not-in-force
- 2005-09-16 DE DE502005004678T patent/DE502005004678D1/en active Active
- 2005-09-16 WO PCT/EP2005/010032 patent/WO2006042603A1/en active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523207A (en) * | 2021-08-19 | 2021-10-22 | 常州市发振机械股份有限公司 | Steel ingot mould that can assemble |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006042603A1 (en) | 2006-04-27 |
| ATE400381T1 (en) | 2008-07-15 |
| AT500814B1 (en) | 2006-11-15 |
| EP1819463A1 (en) | 2007-08-22 |
| EP1819463B1 (en) | 2008-07-09 |
| AT500814A1 (en) | 2006-04-15 |
| CN100592944C (en) | 2010-03-03 |
| KR20070073901A (en) | 2007-07-10 |
| DE502005004678D1 (en) | 2008-08-21 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161018 Address after: Linz, Austria Patentee after: PRIMETALS TECHNOLOGIES AUSTRIA GmbH Address before: Linz, Austria Patentee before: SIEMENS VAI METALS TECHNOLOGIES GmbH Effective date of registration: 20161018 Address after: Linz, Austria Patentee after: SIEMENS VAI METALS TECHNOLOGIES GmbH Address before: Linz, Austria Patentee before: SIEMENS VAI METALS TECHNOLOGIES GmbH & Co. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20170916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |