EP1365874A2 - Procede et dispositif de fabrication de brames minces - Google Patents
Procede et dispositif de fabrication de brames mincesInfo
- Publication number
- EP1365874A2 EP1365874A2 EP01995634A EP01995634A EP1365874A2 EP 1365874 A2 EP1365874 A2 EP 1365874A2 EP 01995634 A EP01995634 A EP 01995634A EP 01995634 A EP01995634 A EP 01995634A EP 1365874 A2 EP1365874 A2 EP 1365874A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- segment
- thickness
- strand guide
- wedge
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000009749 continuous casting Methods 0.000 claims abstract description 11
- 238000007711 solidification Methods 0.000 claims abstract description 11
- 230000008023 solidification Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 230000009467 reduction Effects 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000161 steel melt Substances 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
Definitions
- the invention relates to a method and an apparatus for producing thin slabs, the cross section of which is reduced during solidification, in a continuous casting installation, the strand guide of which follows the die guide for changing the thickness of the strand or the thin slab, wedge-shaped adjustable roller sections or strand segments.
- each roller carrier is arranged in a fixed frame and divided into several roller-bearing segments, to which adjusting devices are assigned.
- the roller-bearing segments are articulated to one another in such a way that each segment can be adjusted and adjusted at any angle to the strand. Mechanical, hydraulic or mechanical-hydraulic adjustment devices are used for this.
- DE 196 39 297 A1 discloses a method and a device for high-speed continuous casting plants with a reduction in strand thickness during solidification.
- the strand cross-section is reduced linearly over a minimum length of the strand guide immediately below the mold.
- soft reduction the remaining strand guidance
- a continuous casting with a distribution of the Thickness reduction over the length of the strand guide has also become known from EP 0 611 610 A1, where the casting of the strand is followed by hot rolling of slabs of certain lengths previously separated from the strand.
- the invention has for its object to provide a method and a device of the type mentioned, which enable an optimized LCR (Liquid Core Reduction) and reduce the investment.
- LCR Liquid Core Reduction
- This object is achieved for thin slabs in the thickness range from about 40 to 120 mm with a method according to the invention in that the strand thickness only at one point of the strand guide below the first segment following the mold in a region of the strand having a liquid core by wedge adjustment of the strand guide rollers there is reduced with a smooth transition.
- the knowledge gained through extensive operating experience is hereby implemented that, with small thickness reductions, an action on the strand at only one point in the strand guide is sufficient. It is therefore no longer necessary to provide all segments with hydraulic adjustment or adjusting means, which otherwise requires a high investment and maintenance effort.
- the first segment immediately following the mold can be designed in a simple and maintenance-friendly manner.
- the simple design of the first segment is of particular advantage because of the high risk of breakthrough there, especially when special steel grades, such as stainless steels, are poured.
- the simple construction of the segments arranged between the mold and the reduction area also creates the prerequisite for modernization to maintain the existing segments for this strand guiding area, whereby the modernization effort is limited to only a partial area of the continuous casting machine or plant and thus lowers the investment costs.
- such an operation of the continuous caster can be realized in which the The sump or the liquid core can be shifted as far down as possible and final solidification can always be achieved in the same area of the strand guide. This is independent of the width of the strand to be cast and the casting speed.
- the thickness is reduced in the range from 1 to 25 mm, depending on the casting format and the exact location of the employed segment performing the mini reduction within the strand guide.
- the specific location of the action of the strand is therefore decisive for the degree of thickness reduction to be carried out accordingly.
- a device for carrying out the method has a pivot point on a segment immediately following the segment immediately downstream of the mold, and preferably force- and / or position-controlled adjusting means arranged on the inlet side and on the outlet side. At least the first segment following the mold is therefore not used for the reduction in thickness and thus remains in its parallel position from the start of the strand guide rollers, so that no hydraulic adjustments are required for this segment.
- a simpler and less complex wedge adjustment is achieved due to the inlet-side pivot point than with an entire wedge adjustment using adjusting means.
- a preferred embodiment of the invention provides that the segment carrying out the mini reduction is subdivided and only the strand guide rollers arranged in the upper sub-segment are set against the strand.
- this sub-segment which then has the pivot point at the top and the actuating means or actuating means on the outlet side, the wedge adjustment is in any case followed by a parallel section of the strand guide even if the wedge adjustment takes place in the last segment of the strand guide.
- the driven rollers of the bending driver which adjoin the segments of the strand guide are assigned adjusting cylinders on the loose side. This on the loose side - the fixed side in continuous casting systems is generally in the direction of the turret providing the ladles with the molten steel melt - has the advantage that it automatically adjusts itself to the thickness of the strand.
- FIG. 2 shows a representation corresponding to FIG. 1 with a reduction in thickness in the upper part of the last strand guide segment
- FIG. 3 shows a representation corresponding to FIG. 2, in contrast to that for reducing the thickness of a wedge adjustment of the entire last strand guide segment.
- FIGS. 1 to 3 the oscillating mold 2, the strand guide consisting of several segments 3 or 4 and n and the bending driver 6 following this in the strand pull-out direction 5 are shown in FIGS.
- the segments 3, 4 and n are provided with numerous guide rollers 8 supporting the strand 7.
- the bending driver 6 has successive driven rollers 9a, 9b lying opposite one another in pairs, the respective ones on the loose side I of the continuous caster 1 hydraulic bending cylinders 10 are assigned to the bending driver rollers 9b.
- Some of the segments of the strand guide are assigned from the fixed side II of the continuous casting plant 1 with their piston rods to roller carriers 11 or 11 a, 11 b attacking actuating cylinders 12.
- the mini reduction in the thickness of the strand 7 in the area of the liquid core 13 is carried out directly in the segment 4 following the first segment 3, and only there by means of the roller carrier 11a of this segment 4, which is functionally divided into two.
- the roller carrier 11a has a pivot point 14 on the inlet side and is pivoted into the wedge position shown for reducing the thickness of the strand 7 by means of the stela cylinder 12 engaging the roller carrier 11a at the bottom.
- the actuating cylinders 12 acting on the roller carrier 11 b - or on the roller carrier 11 or of the adjoining sub-segment or the subsequent segments n - a parallel segment adjustment lasting over a very long distance and thus a large operating window are achieved.
- the final solidification - cf. the sump tip 15 of the strand 7 takes place in the area of the last segment n, but can easily move up or down there over a large area depending on the respective casting conditions and specifications.
- the last segment n of the strand guide is divided according to FIG. 2 and the upper roller carrier 11 a is made wedge-shaped about the pivot point 14.
- the last segment n of the strand guide is divided according to FIG. 2 and the upper roller carrier 11 a is made wedge-shaped about the pivot point 14.
- FIG. 3 Another variant of the reduction in thickness of the strand, while the start-up is otherwise unchanged, is shown in FIG. 3.
- the entire roller support 11 of the last strand guide segment n is made wedge-shaped here by pivoting about the pivot point 14.
- a targeted final solidification is more problematic, it is ensured in any case that the final solidification tion as in all other versions takes place unchanged in the same area, namely in the last segment n.
- All versions have in common that at least the first segment 3 adjoining the mold 2 - according to FIGS. 2 and 3 furthermore also the following segment or segments 4 - do without hydraulic adjustments, as a result of which the investment and maintenance costs are decisively reduced.
- the first segment 3 which is particularly at risk of breakthrough, a maintenance-friendly design of the continuous casting installation 1 or its strand guidance is thus achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Producing Shaped Articles From Materials (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Glass Compositions (AREA)
- Metal Rolling (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10057160 | 2000-11-16 | ||
DE10057160A DE10057160A1 (de) | 2000-11-16 | 2000-11-16 | Verfahren und Vorrichtung zum Herstellen von Dünnbrammen |
PCT/EP2001/013229 WO2002040201A2 (fr) | 2000-11-16 | 2001-11-15 | Procede et dispositif de fabrication de brames minces |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1365874A2 true EP1365874A2 (fr) | 2003-12-03 |
EP1365874B1 EP1365874B1 (fr) | 2006-01-25 |
Family
ID=7663722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01995634A Revoked EP1365874B1 (fr) | 2000-11-16 | 2001-11-15 | Procede et dispositif de fabrication de brames minces |
Country Status (14)
Country | Link |
---|---|
US (1) | US7069974B2 (fr) |
EP (1) | EP1365874B1 (fr) |
JP (1) | JP3884383B2 (fr) |
KR (1) | KR100819123B1 (fr) |
CN (1) | CN1277636C (fr) |
AT (1) | ATE316431T1 (fr) |
AU (1) | AU2002226335A1 (fr) |
CA (1) | CA2428528C (fr) |
DE (2) | DE10057160A1 (fr) |
ES (1) | ES2257466T3 (fr) |
RU (1) | RU2280532C2 (fr) |
UA (1) | UA76732C2 (fr) |
WO (1) | WO2002040201A2 (fr) |
ZA (1) | ZA200303533B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004002783A1 (de) * | 2004-01-20 | 2005-08-04 | Sms Demag Ag | Verfahren und Einrichtung zum Bestimmen der Lage der Sumpfspitze im Gießstrang beim Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen |
DE102007006458A1 (de) * | 2007-02-05 | 2008-08-07 | Sms Demag Ag | Stranggießeinrichtung zum Erzeugen von Brammen aus Stahl |
ITRM20070150A1 (it) * | 2007-03-21 | 2008-09-22 | Danieli Off Mecc | Processo e impianto per la produzione di nastro metallico |
DE102007016575A1 (de) | 2007-04-07 | 2008-10-09 | Sms Demag Ag | Strangführungsvorrichtung |
AT506835B1 (de) * | 2008-05-16 | 2010-09-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum sichern eines anfahrstranges in einer stranggiessanlage und stranggiessanlage mit einem anfahrstrang |
US7931847B2 (en) * | 2009-08-26 | 2011-04-26 | Microsoft Corporation | Injection molding of part having nonuniform thickness |
DE102013214939A1 (de) | 2013-07-30 | 2015-02-05 | Sms Siemag Ag | Gießwalzanlage zum Herstellen von Metallbändern |
US20160108488A1 (en) * | 2014-10-15 | 2016-04-21 | Sms Siemag Ag | Process for producing grain-oriented electrical steel strip and grain-oriented electrical steel strip obtained according to said process |
IT201600116859A1 (it) * | 2016-11-18 | 2018-05-18 | Danieli Off Mecc | Dispositivo di colata continua per bramme sottili |
IT201800009259A1 (it) * | 2018-10-08 | 2020-04-08 | Danieli Off Mecc | Metodo di produzione di un nastro metallico, ed impianto di produzione che implementa detto metodo |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT392029B (de) * | 1988-02-01 | 1991-01-10 | Hulek Anton | Stranggiessanlage zum stranggiessen von stahl |
DE4010966A1 (de) * | 1990-04-05 | 1991-10-10 | Schloemann Siemag Ag | Vorrichtung zur stuetzung eines metallgiessstranges, insbesondere zur weichreduktion bei einer vorband-giessanlage |
JPH0515956A (ja) * | 1991-07-11 | 1993-01-26 | Kobe Steel Ltd | 連続鋳造方法 |
AT398396B (de) * | 1993-02-16 | 1994-11-25 | Voest Alpine Ind Anlagen | Verfahren zum herstellen eines bandes, vorstreifens oder einer bramme |
AT401744B (de) * | 1993-10-14 | 1996-11-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zum stranggiessen |
DE4403048C1 (de) * | 1994-01-28 | 1995-07-13 | Mannesmann Ag | Stranggießanlage und Verfahren zur Erzeugung von Rechteck-Dünnbrammen |
US5577754A (en) * | 1994-04-26 | 1996-11-26 | Hwu; Chyn-Herng | Anti-reverse sliding motion mechanism |
JP3008821B2 (ja) * | 1994-07-29 | 2000-02-14 | 住友金属工業株式会社 | 薄鋳片の連続鋳造方法および装置 |
US6102101A (en) * | 1995-10-18 | 2000-08-15 | Sumitomo Metal Industries, Ltd. | Continuous casting method and apparatus thereof |
DE19639297C2 (de) * | 1996-09-25 | 2000-02-03 | Schloemann Siemag Ag | Verfahren und Vorrichtung für Hochgeschwindigkeits-Stranggießanlagen mit einer Strangdickenreduktion während der Erstarrung |
DE19720768C1 (de) * | 1997-05-07 | 1999-01-14 | Mannesmann Ag | Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl |
DE19933635A1 (de) * | 1999-07-17 | 2001-01-18 | Sms Demag Ag | Verfahren und Vorrichtung zur Formatdickenänderung des Gußstranges einer Stranggießanlage im kontinuierlichen Gießbetrieb |
DE10011689A1 (de) * | 2000-03-10 | 2001-09-13 | Sms Demag Ag | Verfahren zum Stranggiessen von Brammen und insbesondere von Dünnbrammen |
-
2000
- 2000-11-16 DE DE10057160A patent/DE10057160A1/de not_active Withdrawn
-
2001
- 2001-11-15 RU RU2003117440/02A patent/RU2280532C2/ru not_active IP Right Cessation
- 2001-11-15 UA UA2003065543A patent/UA76732C2/uk unknown
- 2001-11-15 EP EP01995634A patent/EP1365874B1/fr not_active Revoked
- 2001-11-15 KR KR1020037006598A patent/KR100819123B1/ko not_active IP Right Cessation
- 2001-11-15 ES ES01995634T patent/ES2257466T3/es not_active Expired - Lifetime
- 2001-11-15 CA CA002428528A patent/CA2428528C/fr not_active Expired - Fee Related
- 2001-11-15 AU AU2002226335A patent/AU2002226335A1/en not_active Abandoned
- 2001-11-15 AT AT01995634T patent/ATE316431T1/de not_active IP Right Cessation
- 2001-11-15 WO PCT/EP2001/013229 patent/WO2002040201A2/fr active IP Right Grant
- 2001-11-15 JP JP2002542558A patent/JP3884383B2/ja not_active Expired - Fee Related
- 2001-11-15 DE DE50108810T patent/DE50108810D1/de not_active Expired - Lifetime
- 2001-11-15 CN CNB018190154A patent/CN1277636C/zh not_active Expired - Fee Related
- 2001-11-16 US US10/416,985 patent/US7069974B2/en not_active Expired - Fee Related
-
2003
- 2003-05-08 ZA ZA200303533A patent/ZA200303533B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO0240201A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002040201A2 (fr) | 2002-05-23 |
JP3884383B2 (ja) | 2007-02-21 |
DE10057160A1 (de) | 2002-05-29 |
KR20030097792A (ko) | 2003-12-31 |
ATE316431T1 (de) | 2006-02-15 |
WO2002040201A3 (fr) | 2003-09-12 |
CN1277636C (zh) | 2006-10-04 |
AU2002226335A1 (en) | 2002-05-27 |
CA2428528A1 (fr) | 2002-05-23 |
ES2257466T3 (es) | 2006-08-01 |
EP1365874B1 (fr) | 2006-01-25 |
ZA200303533B (en) | 2004-02-09 |
US20040035550A1 (en) | 2004-02-26 |
KR100819123B1 (ko) | 2008-04-02 |
RU2003117440A (ru) | 2005-01-20 |
RU2280532C2 (ru) | 2006-07-27 |
DE50108810D1 (de) | 2006-04-13 |
CA2428528C (fr) | 2009-07-07 |
JP2004531394A (ja) | 2004-10-14 |
CN1549753A (zh) | 2004-11-24 |
UA76732C2 (uk) | 2006-09-15 |
US7069974B2 (en) | 2006-07-04 |
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