EP4611953A1 - ABDICHTSYSTEM ZUR VERWENDUNG MIT EINEM KALTSTRANGKOPF EINER STRANGGIEßANLAGE UND VERFAHREN ZUM HERSTELLEN EINES METALLISCHEN PRODUKTS MITTELS STRANGGIEßEN UNTER VERWENDUNG DES ABDICHTSYSTEMS - Google Patents
ABDICHTSYSTEM ZUR VERWENDUNG MIT EINEM KALTSTRANGKOPF EINER STRANGGIEßANLAGE UND VERFAHREN ZUM HERSTELLEN EINES METALLISCHEN PRODUKTS MITTELS STRANGGIEßEN UNTER VERWENDUNG DES ABDICHTSYSTEMSInfo
- Publication number
- EP4611953A1 EP4611953A1 EP23800465.9A EP23800465A EP4611953A1 EP 4611953 A1 EP4611953 A1 EP 4611953A1 EP 23800465 A EP23800465 A EP 23800465A EP 4611953 A1 EP4611953 A1 EP 4611953A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- head
- sealing system
- cold strand
- plates
- continuous casting
- 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
- B22D11/08—Accessories for starting the casting procedure
- B22D11/081—Starter bars
- B22D11/083—Starter bar head; Means for connecting or detaching starter bars and ingots
-
- 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
- B22D11/08—Accessories for starting the casting procedure
- B22D11/088—Means for sealing the starter bar head in the moulds
Definitions
- Sealing system for use with a cold strand head of a continuous casting plant and method for producing a metallic product by continuous casting using the sealing system
- the invention relates to a sealing system for use with a cold strand head of a continuous casting plant and to methods for producing a metallic product by means of continuous casting using the sealing system.
- the sealing systems known from the state of the art each have an upper component that is precisely adapted to the shape of the cold-roll head. This results in the disadvantage that such an upper part, to which the seal is already attached or which serves to fix a seal underneath, only ever fits a certain shape of cold-roll head and is not suitable for use with other types of cold-roll heads. If different mold formats are cast or the mold is sufficiently worn, new sealing systems must always be used.
- the invention is based on the object of providing a sealing system which is suitable for use with a cold strand head of a Continuous casting plant and with which the start of the continuous casting process can be carried out more easily and cost-effectively and the associated work preparations can be carried out more quickly.
- the head element can be easily adapted to different mold formats or different wear conditions of a mold.
- the underside of the adapter element is preferably adapted to the upper end face of the cold strand head and can be attached to the upper end face of the cold strand head by first fastening means.
- Adapted in the sense of the invention means that the end face of the cold strand head and the underside of the adapter plate have at least partially complementary surface areas. This makes it possible to achieve a partial positive connection between the cold strand head and the adapter plate.
- a first fastening means is preferably designed to be form-fitting.
- the form-fitting of the fastening means facilitates the connection of the two components.
- the first fastening means preferably have at least one web which has a bead or hook at its free end.
- the bead or the hook preferably have at least one recess, wherein the bead or hook of the web and the recess can be brought into engagement with one another.
- the web preferably has a bead, in particular a mushroom-shaped bead, and the recess comprises a widened region complementary thereto.
- the bead, in particular a mushroom-shaped bead, and the widened region of the recess are designed to be complementary to one another. It is more preferred that the web is attached to an underside of the adapter element and the recess is designed in the cold strand head adjacent to its upper end face, wherein the recess opens into this end face.
- the recess preferably comprises a narrow bottleneck-like section which, starting from the upper end face of the dummy bar head, leads into the widened area of the recess.
- the recess is preferably open on at least one side face of the dummy bar head, so that the web with its bead can be introduced into the recess from this side face.
- the head element and the adapter element preferably each have a rectangular cross-section with a long side and a short side in a plane orthogonal to the transport direction of the cold strand head, wherein a Longitudinal extension of the long side is many times greater than a longitudinal extension of the short side. It is more preferred that the head element and the adapter element with their cross section in the plane orthogonal to the transport direction of the cold strand head are each adapted to a cross section of a mold of a continuous casting plant. Adapted in the sense of the invention means that at least the geometric dimensions of the inside of a mold and the cross section of the head element with the associated adapter plate are similar and existing deviations can be compensated by the movement options of the adapter element.
- a short side of the rectangular cross-section of the adapter element or the head element preferably has a length of at least 100 mm, more preferably of at least 120 mm, even more preferably of more than 150 mm.
- the head element is preferably designed as a standardized component.
- a standardized component in the sense of the invention is a component that can be used with a large number of different mold formats. To this end, the head element must be adapted in its dimensions and adjustment ranges to all the different mold formats used in a continuous casting plant.
- the head element and the adapter element can preferably be connected to one another by second, in particular form-fitting, fastening means.
- the second fastening means preferably comprise a plurality of through-openings which are formed in the head element, which is in particular plate-shaped.
- the second fastening means also comprise a plurality of bolts, screws or the like which are attached to the top of the adapter element and can be inserted through the through-openings formed in the head element.
- a slot is formed at a free end of a bolt or adjacent thereto.
- a wedge can be driven through the slot, which is located on an upper side of the head element when its through holes are placed on the bolts.
- At least one elevation is formed on an upper side of the head element.
- the seal is preferably made of plastic. It is more preferred that the external dimensions of the seal are slightly larger than a cross-section of a mold of a continuous casting plant in a plane orthogonal to the transport direction of the dummy bar head.
- the head member preferably comprises at least three plates and a first plate forms a central plate.
- the second and third plates are arranged on opposite sides of the central plate.
- the second and third plates are preferably each connected to the central plate by a clamping element.
- a metallic product is produced by continuous casting using a sealing system according to one of claims 1 to 16, wherein at least the following work steps are carried out:
- the molten metal is sufficiently cooled when it is poured into the mold of a continuous casting plant by contact with the upper side of the head element and the elevation(s) provided there, so that this beginning of the process can be carried out without cooling scrap.
- Fig. 1 - 3 Head element with different positions of the plates and states of the clamping element
- Fig. 4 Central plate
- Figures 1 to 3 show different partial views of a head element 12 of the sealing system 10 according to the invention, wherein the plates 37 in connection with the clamping elements 374 assume different positions in the figures.
- the first central plate 371 is fixedly connected to the cold strand head 1 by an adapter element 18 and the second plate 372 is movable relative to the first plate 371.
- a third plate 373 (not shown) can be attached in mirror image to the opposite side of the central plate 371.
- a seal 14 (not shown) can be attached all the way around the edge in the edge region 13 of the head element 12.
- the clamping element 374 is formed by a screw and corresponding counter bearings or webs on the plates 37. The screw of the clamping element can limit the movement of the plates 371, 372, 373 relative to one another.
- the movable second plate 372 of the head element 12 is shown in a middle position. This means that the second plate 372 can be moved in both directions relative to the first plate 371.
- the clamping screw limits the range of movement B max of the second plate 372 relative to the maximum range of movement B max of the second plate 372. If the head element 12 is arranged in the mold, the head element 12 can be clamped within the mold by screwing the screw in further.
- Figure 3 shows a state of the sealing system 10 according to the invention in which the movable plate 372 is extended as far as possible relative to the first plate 371.
- the clamping screw is screwed in so far that no more movement of the plates 371, 372 relative to one another is possible.
- Figure 4 shows the first central plate 371 of Figures 1 to 3. This is firmly connected to the cold strand head by an adapter element 18 (not shown).
- the two vertically upward-standing plates on the surface of the plate form a clamping element 374 in conjunction with a screw (not shown).
- the second movable plate 372, 373 is shown in Figure 5.
- a movable connection to the first plate 371 can be made through the elongated hole in the movable plate 372, 373 and the T-shaped formation of the plate on the central plate 371.
- the small plate on the surface of the movable plate 372, 373 forms the counter bearing for the clamping screw.
- Figure 6 shows the sealing system 10 according to the invention in connection with a cold strand head 1.
- the first fastening means 22 connects the cold strand 1 to the underside 19 of the adapter element 18.
- An exemplary embodiment of the first Fastening means 22 is shown in Figure 11.
- the first fastening means 22 consists of a straight web 24 and a bead 25 attached thereto over the entire width K of the adapter element 18.
- the complementary receptacle in the cold strand 1 is shown in Figure 12.
- the receptacle consists of a recess 26 complementary to the web 24 and bead 25. This forms a widened area 27 and a bottleneck-like section 28 in the recess 26.
- the sealing system in connection with the cold strand and inserted into a mold is shown in Figure 13.
- Elevations are attached to the surface of the head element. These enable the head element to be connected to the hot strand.
- the movable plates of Figures 1 to 3 are not shown.
- the head element itself is connected to the adapter element by means of several screw connections.
- the elevations can also be attached to the movable plates.
- the figure shows an example of a length to width ratio of a sealing system according to the invention.
- the length K here is 160 mm and the length L is 1440 mm.
- Figure 14 shows the device according to the invention in connection with a narrow mold 4.
- the long side L is shortened so far that the width of the sealing system is minimized.
- the cold strand is pulled in the direction of the arrow (T) from the lower opening 5 of the mold 4
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022211680 | 2022-11-04 | ||
| DE102023210885.2A DE102023210885A1 (de) | 2022-11-04 | 2023-11-02 | Abdichtsystem zur Verwendung mit einem Kaltstrangkopf einer Stranggießanlage und Verfahren zum Herstellen eines metallischen Produkts mittels Stranggießen unter Verwendung des Abdichtsystems |
| PCT/EP2023/080655 WO2024094846A1 (de) | 2022-11-04 | 2023-11-03 | ABDICHTSYSTEM ZUR VERWENDUNG MIT EINEM KALTSTRANGKOPF EINER STRANGGIEßANLAGE UND VERFAHREN ZUM HERSTELLEN EINES METALLISCHEN PRODUKTS MITTELS STRANGGIEßEN UNTER VERWENDUNG DES ABDICHTSYSTEMS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4611953A1 true EP4611953A1 (de) | 2025-09-10 |
| EP4611953B1 EP4611953B1 (de) | 2026-04-29 |
Family
ID=88690274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23800465.9A Active EP4611953B1 (de) | 2022-11-04 | 2023-11-03 | Abdichtsystem zur verwendung mit einem kaltstrangkopf einer stranggiessanlage und verfahren zum herstellen eines metallischen produkts mittels stranggiessen unter verwendung des abdichtsystems |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4611953B1 (de) |
| WO (1) | WO2024094846A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643731A (en) * | 1969-05-27 | 1972-02-22 | United States Steel Corp | Detachable joint between continuous-casting starter bar and casting |
| CH504256A (de) * | 1970-01-27 | 1971-03-15 | Concast Ag | Anfahrkopf zum Giessen von Strangquerschnitten unterschiedlicher Breiten in einer Stranggiessanlage |
| DE3603190A1 (de) | 1986-02-03 | 1987-08-06 | Schloemann Siemag Ag | Anfahrkopf fuer eine stahlbandgiessanlage |
| AT399834B (de) | 1993-02-12 | 1995-07-25 | Voest Alpine Ind Anlagen | Anfahrkopf für eine stranggiessanlage |
| ITMI991295A1 (it) | 1999-06-10 | 2000-12-10 | Danieli Off Mecc | Metodo per la sigillatura dell'insieme lingotteria - falsa barra in un impianto di colata continua e relativo elemento sigillante |
| DE202005001310U1 (de) | 2005-01-26 | 2005-04-14 | Hetsch, Walter | Verbundgußplatte |
| KR100739633B1 (ko) * | 2006-04-19 | 2007-07-16 | 주식회사 포스코 | 더미바 헤드 |
| EP2127780B1 (de) | 2008-05-23 | 2012-12-05 | Concast Ag | Kaltstrangkopf-Abdichtsystem in einer Kokille einer Stranggiessanlage zum Giessen grossformatiger Vorprofile |
-
2023
- 2023-11-03 WO PCT/EP2023/080655 patent/WO2024094846A1/de not_active Ceased
- 2023-11-03 EP EP23800465.9A patent/EP4611953B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4611953B1 (de) | 2026-04-29 |
| WO2024094846A1 (de) | 2024-05-10 |
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