EP3548204A1 - Buse de coulée - Google Patents

Buse de coulée

Info

Publication number
EP3548204A1
EP3548204A1 EP17811507.7A EP17811507A EP3548204A1 EP 3548204 A1 EP3548204 A1 EP 3548204A1 EP 17811507 A EP17811507 A EP 17811507A EP 3548204 A1 EP3548204 A1 EP 3548204A1
Authority
EP
European Patent Office
Prior art keywords
shell
shells
housing body
casting
upper shell
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
Application number
EP17811507.7A
Other languages
German (de)
English (en)
Other versions
EP3548204B1 (fr
Inventor
Sebastian BÖCKING
Guido Fick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3548204A1 publication Critical patent/EP3548204A1/fr
Application granted granted Critical
Publication of EP3548204B1 publication Critical patent/EP3548204B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B22D11/0642—Nozzles
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0608—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/0657—Caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0688—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the caterpillars

Definitions

  • the invention relates to a pouring nozzle for feeding molten metal into a moving casting mold of a caster casting machine, according to the preamble of claim 1.
  • horizontal block casting machines are known, in particular for the production of aluminum alloys, which function in the manner of a revolving caster casting machine.
  • Such a casting machine is e.g. from EP 1 704 005 B1 or WO 95/27145.
  • the cooling elements of the casting machine form the wall of a moving casting mold on the straight sections or runs of casting caterpillars arranged opposite one another.
  • the casting caterpillars each consist of a plurality of endlessly interconnected cooling blocks, which are transported along the orbits of the caterpillars.
  • the cooling blocks are mounted on supporting elements, which are placed on chains and thus articulated as members of a chain.
  • prior art for feeding molten metal into a moving mold of a block casting machine, prior art, for example from EP 0 424 837 B1, discloses pouring nozzles in which an elongated housing body is interspersed with a plurality of flow passages which open into a slot-like outlet side, which is directed into the moving mold.
  • Another generic pouring nozzle according to the preamble of claim 1 is known from DE 2 131 435 A.
  • the aforementioned prior art pouring nozzles have in common that they have a width of about 400-500 mm.
  • Corresponding they are based on the disadvantage that, when supplying a moving casting mold with a larger width, it is necessary to switch or operate a plurality of such nozzles next to one another. This may result in the areas in which such pouring nozzles laterally adjoin each other, no uniform entry of molten metal into the moving mold, which can result in quality problems in the cast material produced.
  • the invention has for its object to provide a casting nozzle for feeding molten metal into a moving mold in which larger dimensions in width are possible with mechanically simple and reliable means.
  • a pouring nozzle is for feeding molten metal, particularly non-ferrous metal such as aluminum or aluminum alloys, into a moving mold of a horizontal block caster, and comprises an elongate casing body having a slit-like discharge side. Within the housing body a plurality of flow passages are formed along the longitudinal direction thereof and across the width thereof, through which molten metal can be passed in the direction of the outlet side and fed from there into the moving casting mold.
  • the housing body is formed at least in two parts in the direction of its height, and has at least one upper shell and at least one lower shell.
  • the upper shell and the lower shell, in the assembled state, are spaced apart by separating webs, wherein the individual flow passages extend within the housing body between the separating webs.
  • the housing body is in its width direction, or in the direction of the width of the pouring nozzle, each of a plurality of upper shells and lower shells, wherein at an upper connection point, where two upper shells adjoin one another, an opposite lower shell or a separating web provided thereon has a continuous region.
  • an opposite upper shell or a separating web provided thereon has a continuous region.
  • the invention is based on the essential knowledge that the housing body consists of a plurality of upper shells and lower shells in its width direction, these upper shells and lower shells being assembled in the manner of a "butt joint technique.” Specifically, this means that at an upper connection point, namely there Similarly, this also means that at a lower connection point, namely where two lower shells adjoin one another, an opposite upper shell or a separating web provided thereon is provided. This results in the said "butt joint technique", according to which vertical parting lines, which form between adjoining upper shells or lower shells, at no point extend completely over the height (z-direction) of the casting nozzle s.
  • a resulting overall width for the casting nozzle according to the invention can thus be greater than 1 .000 mm, preferably greater than 1 .500 mm, more preferably greater than 2,000 mmm.
  • the housing body is formed in its width direction by using a plurality of upper shells and lower shells, is that it too a plurality of flow passages are formed, which are uniformly spaced along the width direction of the housing body, ie over the entire width of the casting nozzle according to the invention.
  • the individual flow passages each extend between the separating webs, by means of which the upper shells and the lower shells are spaced from each other.
  • the respective dividers by means of which - seen in the direction of the height (z-direction) of the housing body - an upper shell and a lower shell are spaced apart completely along the longitudinal direction (x-direction) of Housing body extend and thereby separate the individual flow passages from each other.
  • molten metal passing through each of the flow passages can not flow across a flow passage to an adjacent flow passage.
  • the invention differs from a generic pouring nozzle according to DE 2 131 435 A, in which certain webs which are arranged between the opposite plates of such a pouring nozzle, in comparison to the entire longitudinal extent of this pouring nozzle in a relatively small portion thereof are formed ,
  • this prior art casting nozzle within the associated housing body and its oppositely disposed plates flow the molten metal, which can lead to turbulence in the flow of the molten metal and thus uneven feeding into the moving casting mold.
  • the partitions are completely formed on the upper shell and sit with their foot portions on the opposite lower shell and attached thereto when the upper shell and the lower shell are mounted together.
  • the partitions are completely formed on the lower shell, in which case the foot portions of the partitions sit on the opposite upper shell and are fixed thereto in the assembled state of the casting nozzle.
  • the respective other shell element (lower shell or upper shell) is in particular formed on both sides as a flat planar body, which preferably has a planar extension.
  • a shell element in the form of a flat body is manufacturing technology advantageous and can be made in particular inexpensively.
  • the upper shell and the lower shell which are each designed as planar bodies as explained, may also have a curvature along their longitudinal extent.
  • both shell elements i. Upper shell and lower shell, both sides are each formed as a flat body.
  • the dividers are provided as separate elements, which are introduced in an assembly of upper shell and lower shell therebetween and secured to the upper shell and lower shell.
  • the production of both the upper and lower shell in each case as a two-sided planar body is also advantageous in terms of manufacturing technology and enables production at a lower cost.
  • the abovementioned variants of the casting nozzle according to the invention according to which at least one shell element (upper shell or lower shell) is designed in the form of a two-sided planar body, apply mutatis mutandis to the plurality of upper shells and the plurality of lower shells which run along one Width of the casting nozzle is provided and from which the housing body in its width direction.
  • the upper shells or the lower shells, from which the housing body is formed in its width direction can also each be designed in the form of flat bodies.
  • the components of the pouring nozzle according to the invention i. the upper shells, the lower shells and the associated dividers, each formed from refractory materials. This ensures a long service life of the casting nozzle according to the invention, in particular with regard to the comparatively high temperatures of the molten metal, which is passed through the flow passages of the casting nozzle.
  • the flow pattern through the individual flow passages is improved within the pouring nozzle according to the invention, whereby turbulences in the cast material are avoided and any alloying elements present can distribute more uniformly, in particular over the width of the pouring nozzle.
  • FIG. 1 shows a side view of a pouring nozzle according to the invention
  • FIG. 2 shows the use of the pouring nozzle of FIG. 1 in a moving casting mold of a caster casting machine
  • 3 is a perspective view of an upper shell of the pouring nozzle of Fig. 1,
  • Fig. 4 is a side view of an outlet side of the pouring nozzle of Fig. 1, from
  • FIG. 5 is a plan view of an inner surface of a disassembled lower shell of the pouring nozzle of FIG. 1, FIG.
  • FIG. 10 is a side view of a caster casting machine employing a pouring nozzle of FIG. 1, and FIG. 1 is a side elevational view of two opposed endless dies
  • a pouring nozzle 10 which for feeding molten metal 1 1, in particular non-ferrous metal such.
  • molten metal 1 in particular non-ferrous metal such.
  • a moving mold 12 of a caster casting machine 14 is used.
  • Identical features in the drawing are each provided with the same reference numerals. At this point, it should be noted separately that the drawing is merely simplified and shown in particular without scale.
  • FIG. 1 shows a side view of the pouring nozzle 10 according to the invention, which has a housing body 20 with an inlet side E and an outlet side A.
  • the housing body 20 is formed in two parts in the direction of its height (in the vertical direction in FIG. 1) and in this case comprises at least one upper shell 24 and at least one lower shell 26 which are separated from one another by separating webs 28 are spaced (see, for example, Fig. 6). Between these separating webs 28, individual flow passages extend from the inlet side E to the outlet side A, which will be explained in detail below.
  • 10 shows a simplified side view of a caster casting machine 14 in which the pouring nozzle 10 according to the invention is used.
  • the caster casting machine 14 has an upper bead 14. 1 and a lower bead 14.
  • FIG. 11 shows a side view of two guide rails 17, with which two endlessly arranged endless orbits for the crawler casting machine 14 of FIG. 10 are formed.
  • a plurality of support elements 15 are guided with cooling blocks 16 attached thereto, such that a continuous chain of support elements 15 is formed, which are conveyed or transported in the transport direction T along the guide rails 17.
  • a circulation of the upper bead 14.1 and the lower bead 14.2 and the attached thereto support members 15 is ensured by associated drive wheels 18.
  • FIG. 11 shows a side view of two guide rails 17, with which two endlessly arranged endless orbits for the crawler casting machine 14 of FIG. 10 are formed.
  • cooling blocks 16 attached thereto
  • FIG. 1 1 further clarifies that a casting mold 12 is formed between the cooling blocks 16 which come into opposition in the straight sections of the circulation path U of the guide rails 17.
  • a moving mold In view of the transport direction T of the support elements 15 along the guide rails 17 is in this mold 12 is a moving mold.
  • the use of the casting nozzle 10 in a caster casting machine 14 is shown again in FIG. 2 in an enlarged view.
  • the casting nozzle 10 is with her Inlet side E suitably attached to a melt container 13, is received in the molten metal. Accordingly, the molten metal from the melt container 13 is directed through the attached pouring nozzle 10 toward the discharge side A (see Fig. 1) of the pouring nozzle 10.
  • Fig. 3 shows the upper shell 24 in a perspective view obliquely from above right.
  • the relatively large overall width B of the pouring nozzle 10 can be seen, which in any case is greater than a length of the pouring nozzle in the longitudinal direction x of the housing body 20.
  • the outlet side A is shown in the image area on the right, the present in shape a slot-like thin rectangular opening is formed.
  • a uniform entry of molten metal into a moving mold 12 of a caster casting machine 14 is also possible over a considerable width.
  • the housing body 20 of the pouring nozzle 10 is formed of a plurality of upper shells 24 and a plurality of lower shells 26 which are positioned in the direction of a height (z-direction) of the housing body 20 by separating webs 28 (see Fig. 6-9) spaced from each other , 4 shows a side view of the pouring nozzle 10, namely from the direction of the arrow A of FIG. 3.
  • the housing body 20 in the direction of its width (y-direction) respectively consists of a plurality of upper shells 24 and of a plurality of lower shells 26 .
  • An essential feature of the invention in this case is that the upper shells 24 and the lower shells 26 - seen in the width direction y of the housing body 20 - each overlap laterally, and arranged in the manner of a "butt joint technique.”
  • an opposite upper shell 24 is provided a continuous region 33.
  • the resulting total width B of the pouring nozzle 10 is greater than the area shown in Fig. 4 for the housing body 20 in its widthwise direction y. Accordingly, the housing body 20 then consists in its width direction y of more than two upper shells 24 and lower shells 26, e.g. of three or more such shell elements, in which case the total width, as explained, is greater than shown in Fig. 4.
  • FIG. 5 shows a plan view of the lower shell 26 in the disassembled state of the casting nozzle 10, namely on that side which, in the mounted state of the casting nozzle 10, is arranged opposite the upper shell 24.
  • FIG. 5 shows a plan view of an inner surface of the lower shell 26.
  • Zu recognize that on a surface of the lower shell 26, a plurality of separating webs 28 are formed, which extend along the longitudinal axis x of the housing body 20. If the upper shell 24 and the lower shell 26 are mounted together, a spacing of these two shells 24, 26 from each other by a height of these dividers 28 in the vertical direction (z-direction, see Fig.
  • Fig. 5 illustrates that the individual flow passages 22 each open into the outlet side A of the pouring nozzle 10.
  • screws can be used which pass through the upper shells 24 and the lower shells 26 and the separating webs 28 provided therebetween in the z-direction, and are symbolized in FIG. 5 along the separating webs 28 in each case by small circles.
  • FIGS. 6-9 various embodiments of the pouring nozzle 10 according to the invention will be explained, which differ with regard to an embodiment of the separating webs 28.
  • the illustrations in FIGS. 6-9 each show cross-sectional views of the housing body 20 along the width B of the casting nozzle and along the width direction y of the housing body 20.
  • both the upper shells 24 and the lower shells 26 each have partitions 28 on. This corresponds to the representation according to the plan view of Fig. 5.
  • the illustration in Fig. 6 corresponds to that of Fig. 4, and illustrates that the vertical joints existing between adjacent upper and lower shells at the joints 30, 32, respectively, not completely over the height or z Direction of the housing body 20 extend.
  • FIG. 7 shows a modified embodiment for the pouring nozzle 10, in which the separating webs 28 are completely formed on the upper shells 24.
  • the lower shells 26 are each formed as a flat body. Notwithstanding this, it remains the case that at an upper connection point 30, the dividing webs 28, which are respectively formed on side edges of adjoining upper shells 24, rest with their foot regions 34 on a continuous region 31 of an opposing lower shell 26. In the same way, two adjacent lower shells 26 are in contact at a lower connection point 32 with a continuous region 33 of a separating web 28 of an upper shell 24 arranged opposite thereto.
  • FIG. 8 A further embodiment of the pouring nozzle 10 is shown in FIG. 8, which corresponds to a kinematic reversal of the embodiment of FIG. 7.
  • the dividers 28 are each formed on the lower shells 26, wherein the upper shells 24 are each formed as a flat body.
  • the joining of the respective upper shells 24 and lower shells 26 at the upper connection points 30 and the lower connection points 32 mutatis mutandis corresponds to the embodiment of Fig. 7, so that reference may be made to the intersection of repetitions to their explanation.
  • the individual separating webs 28 are integrally formed with the respective upper shells 24 and lower shells 26.
  • these upper and lower shells in connection with the dividers are made in one piece, and can be produced for example by milling or the like. Accordingly, a separate fastening of the dividers on the upper and lower shells is not required.
  • FIG. 9 Yet another embodiment of the pouring nozzle 10 is shown in FIG. 9.
  • all upper shells 24 and lower shells 26, from which the housing body 20 is formed in its width direction y each formed as a flat planar body.
  • the individual separating webs 28, which are provided in the installed state of the casting nozzle 10 between the upper shells 24 and lower shells 26, are in each case formed as separate elements.
  • these separate dividing webs 28, as explained, for example, by using screws, which are symbolized in Fig. 5 as small circles, with the upper and lower shells 24, 26 may be attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention concerne une buse de coulée (10) pour injecter du métal fondu dans un moule de coulée en mouvement d'une machine de coulée à chenilles, comprenant un corps (20) de boîtier allongé pourvu d'un côté sortie (A) de type fente, plusieurs orifices d'écoulement étant formés dans le corps (20) de boîtier le long de sa direction longitudinale (x) et sur sa largeur (B), à travers lesquels le métal fondu peut être guidé vers le côté sortie (A) et être injecté dans le moule de coulée en mouvement, le corps (20) de boîtier étant conçu au moins en deux parties dans le sens de la hauteur et présentant au moins une coquille supérieure et au moins une coquille inférieure, la coquille supérieure et la coquille inférieure étant écartées l'une de l'autre par des entretoises de séparation et les différents orifices d'écoulement s'étendant entre les entretoises de séparation.
EP17811507.7A 2016-11-29 2017-11-24 Buse de coulée Active EP3548204B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016223720 2016-11-29
PCT/EP2017/080429 WO2018099834A1 (fr) 2016-11-29 2017-11-24 Buse de coulée

Publications (2)

Publication Number Publication Date
EP3548204A1 true EP3548204A1 (fr) 2019-10-09
EP3548204B1 EP3548204B1 (fr) 2020-04-08

Family

ID=60629672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17811507.7A Active EP3548204B1 (fr) 2016-11-29 2017-11-24 Buse de coulée

Country Status (6)

Country Link
US (1) US11052457B2 (fr)
EP (1) EP3548204B1 (fr)
JP (1) JP6781839B2 (fr)
CN (1) CN110035843B (fr)
DE (1) DE102017221109A1 (fr)
WO (1) WO2018099834A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3219626A1 (fr) * 2021-06-02 2022-12-08 Novelis Inc. Conception d'embout pour coulee continue a haute performance

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508433A (de) * 1970-06-24 1971-06-15 Prolizenz Ag C O Schweiz Kredi Düse für die Zuführung des geschmolzenen Metalles beim Bandgiessen in Raupenkokille
FR2398565A1 (fr) * 1977-07-27 1979-02-23 Scal Gp Condit Aluminium Busette d'alimentation en metal liquide pour machine de coulee continue de bande
CH633205A5 (de) 1978-01-30 1982-11-30 Alusuisse Vorrichtung zum zufuehren einer metallschmelze beim bandgiessen.
JPS57165162A (en) * 1981-04-01 1982-10-12 Sumitomo Metal Ind Ltd Supplying method for molten steel in belt caster
CH661882A5 (de) * 1983-06-01 1987-08-31 Lauener W F Ag Verfahren zum zufuehren einer metallschmelze in den giessspalt einer giessmaschine und giessmaschine zur durchfuehrung des verfahrens.
JPS62166056A (ja) * 1986-01-16 1987-07-22 Daido Steel Co Ltd 急冷凝固金属薄帯の製造方法および製造装置
JPS62183941A (ja) * 1986-02-06 1987-08-12 Sumitomo Heavy Ind Ltd 無限軌道式連続鋳造機の給湯設備
US4972900A (en) 1989-10-24 1990-11-27 Hazelett Strip-Casting Corporation Permeable nozzle method and apparatus for closed feeding of molten metal into twin-belt continuous casting machines
JPH0441053A (ja) * 1990-06-05 1992-02-12 Mitsubishi Heavy Ind Ltd ツインベルト式連続鋳造用ノズル
US5645122A (en) 1994-03-30 1997-07-08 Lauener Engineering, Ltd. Block fixation and adjustment in a continuous caster
JPH08117937A (ja) 1994-10-21 1996-05-14 Nippon Steel Corp 薄板連続鋳造用広幅フラットノズル
JPH11179496A (ja) * 1997-12-24 1999-07-06 Sumitomo Metal Ind Ltd 薄板連続鋳造用分流板および薄板連続鋳造方法
AU2004313616B2 (en) 2004-01-14 2010-04-15 Lamec Ag Casting machine
US20060191664A1 (en) * 2005-02-25 2006-08-31 John Sulzer Method of and molten metal feeder for continuous casting
EP1946866A1 (fr) * 2007-01-20 2008-07-23 MKM Mansfelder Kupfer und Messing GmbH Procédé et dispositif destinés à la coulée de bains de fusion non ferreux, en particulier de cuivre et d'alliages de cuivre
DE102009012985A1 (de) * 2009-03-12 2010-09-23 Salzgitter Flachstahl Gmbh Gießdüse für eine horizontale Bandgießanlage
CN105195698B (zh) * 2014-06-24 2017-11-03 晟通科技集团有限公司 铸嘴装置
CN203917844U (zh) * 2014-06-24 2014-11-05 湖南创元铝业有限公司 铸嘴装置
CN204504165U (zh) * 2015-04-14 2015-07-29 富阳怀邦机械有限公司 一种新型铝合金铸轧机用铸嘴
CN105665668B (zh) * 2016-01-20 2017-11-03 晟通科技集团有限公司 铸嘴夹具

Also Published As

Publication number Publication date
DE102017221109A1 (de) 2018-05-30
CN110035843B (zh) 2021-06-18
CN110035843A (zh) 2019-07-19
US11052457B2 (en) 2021-07-06
US20190299277A1 (en) 2019-10-03
JP2019535528A (ja) 2019-12-12
WO2018099834A1 (fr) 2018-06-07
JP6781839B2 (ja) 2020-11-04
EP3548204B1 (fr) 2020-04-08

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