EP1286796A1 - Strangführung für eine stranggiessanlage - Google Patents
Strangführung für eine stranggiessanlageInfo
- Publication number
- EP1286796A1 EP1286796A1 EP01940010A EP01940010A EP1286796A1 EP 1286796 A1 EP1286796 A1 EP 1286796A1 EP 01940010 A EP01940010 A EP 01940010A EP 01940010 A EP01940010 A EP 01940010A EP 1286796 A1 EP1286796 A1 EP 1286796A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- longitudinal
- strand guide
- guide according
- track
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1282—Vertical casting and curving the cast stock to the horizontal
Definitions
- the invention relates to a strand guide for a continuous caster, with two oppositely arranged, one strand on opposite sides supporting, equipped with support elements, such as support rollers, straight and or curved support tracks, the support elements in each case one of the support tracks to two or more Support frames are arranged, which are supported in a plurality on a foundation frame supported on the foundation, which foundation frame has two first longitudinal beams lying to the side of a first lower or outer outer support track and extending in the longitudinal direction of this first support track, and two further second upper bars opposite the first support track or the inner support track lying and extending in the longitudinal direction of the second support track second longitudinal beam.
- a strand guide of this type is known for example from DE 198 11 651 AI.
- strand guide rollers are each combined to form a plurality of functional units carrying one strand guide roller of the opposing support tracks in one segment.
- several segments are fastened one behind the other in the longitudinal direction of the strand curtain to foundation frames supported on the foundation.
- the foundation frame is formed by upper and lower side members lying to the side of the segments, each of which is attached to the foundation.
- Each segment has laterally arranged support beams which extend perpendicular to the strand guide and on which the frames carrying the frame guide rollers are mounted via plungers for setting a predetermined strand thickness.
- the segments can only be viewed as a whole, i.e. remove with the lower or outer support rollers and the frame supporting the upper and inner support rollers.
- the invention aims to avoid these disadvantages and difficulties and has the object to further develop a strand guide of the type described with the advantage of extending in the longitudinal direction of the strand guide longitudinal members - which allow easy and accurate adjustment of the supporting elements supporting the strand - that in the event of a defect in the parts causing the main maintenance work, namely the support elements supporting the strand, such as support rollers, only these parts need to be replaced. Furthermore, there should be full accessibility to the strand guide from the side, in spite of the first and second longitudinal beams extending in the longitudinal direction of the strand guide.
- the construction of the strand guide should be as light as possible and a combination of the advantages of one So-called segment construction (known from AT 335 650 B) with the advantages of integrally formed strand guides (known from AT 343 303 B) enable disadvantages such as cumbersome adjustment and poor accessibility and repairs that are difficult to carry out to be avoided.
- first longitudinal beams are each rigidly connected to a first longitudinal beam lying on the same side of the support tracks by means of spaced connecting means and are supported on the foundation by the first longitudinal beams,
- the second side members are rigidly connected to the first side members via connecting means arranged at a distance and are supported on the foundation via the first side members results in a particularly light construction of the base frame with excellent lateral accessibility.
- the support frames of the first support track and the second support track are connected to supports, which in turn are connected to the longitudinal beams of the foundation frame are supported.
- the connecting means provided according to the invention only serve to connect the first and the second longitudinal members, etc. without contact to the support frame, and it is the support frame on which the support elements supporting the strand, such as the support rollers, are supported, independently of these connecting means, each supported on the associated side members and not, as in the known system, connected by supports.
- the construction according to the invention enables a simple pre-assembly of the system in the workshop, since only the first longitudinal beams are supported on the foundation and the other construction parts are built on these longitudinal beams.
- the support frames of the first support track are expediently connected to the first longitudinal beams via adjusting means, etc. regardless of the connecting means of the side members.
- the connecting means of the longitudinal beams are preferably designed as tie rods, as a result of which these connecting means can be made particularly slim and the lateral accessibility to the strand guide is optimized.
- the tie rods are preferably designed as bending rods, the second longitudinal beams, however, only being in the longitudinal direction of the strand guide compared to the first longitudinal beams
- the bending rods are designed to be rigid.
- the first and the second long beams are secured against one another at one point of their longitudinal extent by means of an element absorbing thrust forces acting between the longitudinal beams.
- a particularly simple removal and installation of the support frames at least one of the support tracks is provided in that the first and / or second longitudinal beams with guide tracks extending approximately perpendicular to their longitudinal extension for receiving sliding elements which are provided on the support frames of the first and second support tracks , are provided.
- the guideways are preferably designed as modules which can be installed in the longitudinal beams and can be fixed relative to these longitudinal beams, so that these guideways can be easily machined, regardless of the second longitudinal beams which have a very large longitudinal extent.
- An embodiment requiring little labor and resulting in an accurate guidance of the support frame is characterized in that support frames of the first and / or second support track are connected to the first and second longitudinal beams via spiral springs, the spiral springs extending with their main direction in the longitudinal direction of the longitudinal beams ,
- support frames of the first and / or second support track are connected to the first and second longitudinal members via links.
- the support frames of the first and / or second are preferred Support track supported on the first or second longitudinal beams by means of pressure medium cylinders, in particular hydraulic cylinders.
- a construction which is easy to manufacture is characterized in that the support frames of the first and / or second support track are supported on the pressure medium cylinders by means of a stool, with media supply lines advantageously leading to the stool and opening into the connections of the support frame via the latter.
- the pressure medium cylinders are expediently acted upon in the casting operation in the direction of the respectively opposite longitudinal beams and between the supporting frames of the first and / or second supporting track and the first and second longitudinal beams, casting thickness supplements for the purpose of fixing the Position of the support frame relative to the longitudinal beams provided.
- casting thickness supplements are provided between support rods arranged on the first longitudinal supports and on the support frames of the second support track and / or between support rods arranged on the second longitudinal supports and on the support frames of the first support track.
- the support frames of the first and / or second support track are supported on each associated longitudinal member only by means of a single pressure medium cylinder.
- the support frames of the first and / or second support track are supported on the first and second longitudinal members via four pressure medium cylinders each arranged on the corner regions appearing in the plan of the support frame.
- displacement sensors are preferably provided, preferably on extensions arranged laterally and directed against one another.
- the hydraulic cylinders provided between the first and / or second longitudinal beams and the support frames of the first and / or second support track are preferably equipped with a control for setting a predetermined position of the support frames relative to one another and / or relative to the longitudinal beams.
- cooling chamber walls can be provided in a simple manner directly on the support frame of the first and second support track, as a result of which it is possible to accommodate all delicate components, such as displacement sensors, hydraulic cylinders, casting thickness supplements etc., unaffected by the coolant for the strand, i.e. to keep dry.
- the hydraulic cylinders provided to support the support frame on the longitudinal members are advantageous by means of a quick-release connection on the longitudinal members and / or on the support frame or, if provided attached to a stool, preferably by means of a wedge connection.
- a preferred embodiment is characterized in that displacement sensors are provided both between the first longitudinal beams and the support frame of the first support track and between the support frame of the first and second support track.
- An advantageous embodiment is characterized in that the support frames of the first and / or second support track are provided with the associated longitudinal beams on the outside spanning lateral extensions, with which the support frame is supported on the associated longitudinal beams directly or via adjusting means or in the case of providing a stool on the latter are.
- the longitudinal members are formed in one piece with the connecting means.
- a further advantageous embodiment is characterized in that a separate module for accommodating at least one pair of rollers, formed by rollers arranged opposite one another, is provided between adjacent support frames.
- the module advantageously has two cross members, one of the cross members being supported on and on the first longitudinal member and the other cross member on the second longitudinal member each of the cross members is supported at least one driven roller, either directly or indirectly.
- a driven roller on the cross member is expediently supported by an adjusting device, such as a pressure medium cylinder.
- the relative position of adjacent support frames is measured, such as by means of the displacement sensors or by a casting gap measuring device or by pressure evaluations of the pressures of the actuating means during a trial operation and / or during the casting operation, and is formed by the when determining deviations in the casting gap path Support frame corrected the target position of the support frame using the adjusting means.
- the solidification point of the strand can advantageously be determined by means of strain measurements carried out on the connecting means of the long beams.
- FIG. 1 illustrating a side view of a strand guide according to the invention in accordance with a first embodiment.
- 2 shows a detail of FIG. 1 on an enlarged scale, partly in section
- FIG. 3 shows a sectional view along the line 111-111 of FIG. 2.
- FIGS. 4, 6, 8, 10 and 12 each show side views according to FIG 2 for different embodiments, and FIGS. 5, 1, 9, 11 and 13 sectional views according to FIG. 3 for the embodiments shown in FIGS. between lines V-V, VE-V ⁇ , IX-IX, XI-XI and Xm-Xm.
- FIG. 14 shows a detail of a further embodiment in a partially sectioned side view according to FIG. 2.
- FIG. 15 shows a modified embodiment in the representation of FIG. 6.
- Fig. 1 shows the strand guide in the straight area, but this can also extend in the arc area of a continuous caster.
- the support rollers 6 are each rotatably mounted on a plurality of support frames 7 and 8.
- the respective support frames 7 (hereinafter referred to as "first" support frames 7) that receive the outer or lower support rollers 6 are independent of the support frames 8 that support the upper or inner support rollers 6, hereinafter referred to as “second” support frames 8 denotes, on the side of the support frame 7 arranged first longitudinal beams 9, which extend in the longitudinal direction 10 of the strand guide, etc. fixed over several support frames 7, over brackets 11.
- the upper or second support frames 8 are also fastened to second longitudinal beams 12 which extend in the longitudinal extension 10 of the strand guide and which extend approximately equidistantly from the first longitudinal beams 9.
- the second side members 12 are supported on the first side members 9, which are mounted on the foundation 13, by means of connecting means 14, which are advantageously designed as tie rods - for receiving the ferrostatic pressure.
- These tie rods 14 can be designed as bending rods, as a result of which different longitudinal expansions of the first longitudinal beams 9 compared to the second longitudinal beams 12 can be compensated for in a very simple manner.
- the longitudinal beams 9, 12 can be screwed or welded to the connecting means 14; However, it is also possible to design the construction acting as a disc and formed by a lower and upper side member 9, 12 and the connecting means 14 in one piece.
- the lower side members 9 can also be part of a foundation construction.
- This element 15 absorbs shear forces acting between the first and second longitudinal members and, in the exemplary embodiment shown, is designed as a support oriented approximately at 45 °.
- the first and the second longitudinal beams 9 and 12 each form with the connecting means 14 a foundation frame supported on the foundation 13, between which a scale channel extends at the bottom, which also serves to discharge the cooling water which is used for cooling the strand 3.
- the upper and second support frames 8 are movable on the second longitudinal beams 12 via four hydraulic cylinders 16 supported, the arrangement of the four hydraulic cylinders 16 being such that when viewed from above they lie at the corner points of the second support frame 8, which is approximately rectangular in plan.
- the hydraulic cylinders 16 or their piston rods 17 are supported with the second longitudinal members 12 and the support frames 8 or stools 8 ′′ via articulated bearings, so that it is possible to set a wedge-shaped casting gap.
- the hydraulic cylinders 16 and their pistons 17 with the second longitudinal members 12 and / or with the second support frames 8 or the stools 8 "are more easily detachable by means of folding screws or hydraulic clamping means or other Lanyard connected.
- the upper or second support frames 8 are guided on guideways 18 which extend approximately perpendicular to the longitudinal extent 10 of the strand guide by means of sliding elements 19, such as sliding blocks, the guideways 18 on the second one according to FIG Longitudinal beams and the sliding blocks 19 are arranged on the bolsters 8 ′′; however, the guideways 18 could also be provided on the support frame 8.
- the guideways 18 are provided on the intermediate frame 12 ′ according to a preferred embodiment.
- a cooling chamber can be formed by simply attaching cooling chamber covers 20 to the supporting frames 7 and 8, so that only the supporting rollers are located inside, whereas the hydraulic cylinders 16 and the longitudinal beams 9, 12 outside the same lie.
- the cooling chamber covers 20 extend between the support arms 7 and 8, etc. left and right of the outside support cheeks 21 of the lower and upper support frames 7 and 8.
- a first media feed 22 for the lower or first support frames 7 leads to the lower longitudinal members 9, and a second media feed 23 for the supply of cooling water or pressure medium to the hydraulic cylinders 16 leads to the upper second support frames 8 via the stool 8 ′′ , which are mounted on the support frame 8 Lines when placing the support frame 8 on the stool 8 "are automatically connected to the lines 23, for example by so-called manifold connections.
- a distance measurement is carried out via the hydraulic cylinders 16, and thus a measurement of the casting gap directly in the cylinders, i.e. this distance measurement is integrated in the hydraulic cylinders 16.
- the casting gap can be set with casting thickness supplements 25, which are provided between the upper and second support frames 8 and the second longitudinal members 12.
- bending springs 26 are used which extend in the longitudinal direction of the second longitudinal beams with their main direction. These bending springs 26 are designed as leaf spring assemblies. They are connected on the one hand to the second longitudinal beams 12 and on the other hand to the second support frame 8.
- the hydraulic cylinders 16 are fastened to the second support frame 8 and, in this embodiment, have piston rods 17 which are designed as bending rods, which pass through the second longitudinal beams 12 with play and whose ends are rigidly fastened to the lower or first longitudinal beams 9.
- piston rods 17 which are designed as bending rods, which pass through the second longitudinal beams 12 with play and whose ends are rigidly fastened to the lower or first longitudinal beams 9.
- displacement sensors 27 are provided to the side of the strand tracks 1 and 2, which are provided on extensions 28 and laterally arranged and mutually directed extensions 28. This allows measurement errors caused by deformation of the side members 9 and 12 and the Avoid connecting means 14 connecting longitudinal beams 9 and 12.
- FIGS. 10 and 11 Another type of setting of the casting gap by means of casting thickness supplements 25 is shown in FIGS. 10 and 11, the casting thickness supplements 25 acting here between the second support frame 8 and the first support frame 7. Both the first support frame 7 and the second support frame 8 are provided with projections 29 directed towards one another and receiving the casting thickness supplements 25 between them.
- the casting thickness supplements 25 can be adjusted in height for the purpose of setting different casting thicknesses or can be exchanged for other casting thickness supplements 25 with a different height.
- FIGS. 12 and 13 An advantageous embodiment is further shown in FIGS. 12 and 13, according to which not only the second support frames 8 are supported on the second side members 12 via hydraulic cylinders 16, but also the first support frames 7 on the first side members 9.
- the first side members 9 arranged via support columns 30 at a distance 31 from the foundation 13 and supported against this.
- All of the above-described embodiments of the mounting or guiding of the second support segments 8 on the second longitudinal members 12 can also be used for positioning and guiding the first support frames 7 on the first longitudinal members 9, so that an essentially symmetrical to the longitudinal guide central plane, illustrated by the line 10, trained strand guide is formed.
- displacement sensors 27 are provided between the first and second support frames 7 and 8 and additionally between the first support frame 7 and the first longitudinal members 9 to set the casting gap.
- the hydraulic cylinders 16 are supported on a module 32 which has the guide tracks 18 for the second support frame 8, which module 32 is inserted into the second longitudinal beams 12 and is fastened thereon with a quick-release connection.
- the quick-release connection is formed here by half rings 33, which are equipped with wedge surfaces which engage on mating wedge surfaces of the module 32.
- the module 32 is formed by the intermediate frame 12 ', the drain middle cylinders 16 and the stool 8 ".
- the construction according to the invention has numerous advantages over the known constructions, such as, for example, the simple possibility of changing the support frame 8 and, as shown in FIGS. 12 and 13, the support frame 7 without major conversion work, excellent accessibility from the side, simple cooling chamber encapsulation, and also offers the possibility of being able to carry out an automatic casting thickness adjustment with position measurement.
- Another advantage is the fact that when changing a support frame 7 or 8, the hydraulics and electrics do not have to be decoupled, since when changing a support frame 7 or 8, the hydraulic cylinders 16 and possibly displacement measuring elements 27 can remain in the system.
- FIG. 15 shows an embodiment of a standard guide analogous to the illustration of FIG. 6 f , but in contrast to the embodiment according to FIG. 6, between two adjacent elements formed by the support frames 7 and 8, a module 34 for receiving them that is independent of these support frames 7 and 8 a pair of rollers driven rollers 35 is installed.
- This module 34 is formed by a lower cross member 36 and an upper cross member 37, the lower cross member 36 being fastened to the lower, ie first side member 9 and the upper cross member 37 to the upper side member, ie to the second side member 12.
- the upper driven roller 35 of the pair of rollers can be raised and lowered via pressure medium cylinders 38 in order to be able to be adjusted to different strand formats or to be pressed against the surface of the strand.
- the advantage of this embodiment can be seen in the fact that the support frames 7 and 8 can be changed independently of the driven rollers 35, so that such a change is less time-consuming, especially since driven rollers require a high expenditure of change time and the like. because of the drive shafts to be decoupled. Such decoupling of the propeller shafts only has to take place according to this embodiment if a driven roller itself has to be changed and not for a change of non-driven rollers.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT9732000A AT408853B (de) | 2000-06-02 | 2000-06-02 | Strangführung für eine stranggiessanlage |
AT973002000 | 2000-06-02 | ||
PCT/AT2001/000182 WO2001091942A1 (de) | 2000-06-02 | 2001-06-01 | Strangführung für eine stranggiessanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1286796A1 true EP1286796A1 (de) | 2003-03-05 |
EP1286796B1 EP1286796B1 (de) | 2007-01-03 |
Family
ID=3683723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01940010A Expired - Lifetime EP1286796B1 (de) | 2000-06-02 | 2001-06-01 | Strangführung für eine stranggiessanlage |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1286796B1 (de) |
AT (1) | AT408853B (de) |
DE (1) | DE50111806D1 (de) |
WO (1) | WO2001091942A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008009136A1 (de) | 2008-02-14 | 2009-10-15 | Sms Siemag Aktiengesellschaft | Strangführung, insbesondere für eine Stahlbrammen-Stranggießanlage |
DE102011088127A1 (de) * | 2011-06-07 | 2012-12-13 | Sms Siemag Ag | Strangführungssegment einer Strangführung einer Stranggießanlage und Verfahren zum Betreiben eines Strangführungssegments |
CN115418471B (zh) * | 2022-09-19 | 2023-08-29 | 祝桥金属材料启东有限公司 | 一种钢带热处理装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH495800A (de) * | 1969-05-20 | 1970-09-15 | Concast Ag | Auszieh- und Richtvorrichtung für Stranggiezzanlagen mit gekrümmter Strangführung |
BE787511A (fr) * | 1971-08-16 | 1973-02-12 | Uss Eng & Consult | Procede et appareil pour redresser des pieces coulees en continu |
AT337386B (de) * | 1975-09-03 | 1977-06-27 | Voest Ag | Rollengerust fur stranggiessanlagen |
AT368049B (de) * | 1979-11-28 | 1982-08-25 | Voest Alpine Ag | Einrichtung an einem stuetz- und fuehrungsgeruest fuer eine stranggiessanlage |
DE3303386A1 (de) * | 1983-02-02 | 1984-08-09 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Stuetzfuehrung in einer stranggiessanlage |
DE3829549A1 (de) * | 1988-08-31 | 1990-03-08 | Voest Alpine Ind Anlagen | Strangfuehrungsgeruest fuer eine stranggiessanlage |
DE4306853C2 (de) * | 1993-02-26 | 1996-03-21 | Mannesmann Ag | Strangführungsgerüst |
DE19811651A1 (de) * | 1998-03-18 | 1999-09-23 | Schloemann Siemag Ag | Stützführung für den Gießstrang einer Stranggießanlage |
-
2000
- 2000-06-02 AT AT9732000A patent/AT408853B/de not_active IP Right Cessation
-
2001
- 2001-06-01 DE DE50111806T patent/DE50111806D1/de not_active Expired - Fee Related
- 2001-06-01 EP EP01940010A patent/EP1286796B1/de not_active Expired - Lifetime
- 2001-06-01 WO PCT/AT2001/000182 patent/WO2001091942A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0191942A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATA9732000A (de) | 2001-08-15 |
WO2001091942A1 (de) | 2001-12-06 |
AT408853B (de) | 2002-03-25 |
DE50111806D1 (de) | 2007-02-15 |
EP1286796B1 (de) | 2007-01-03 |
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