EP0252008B1 - Bloc de rive pour la fermeture latérale de la chambre de coulée d'une machine de coulée continue à deux bandes et procédé pour l'entretien de la machine de coulée continue - Google Patents

Bloc de rive pour la fermeture latérale de la chambre de coulée d'une machine de coulée continue à deux bandes et procédé pour l'entretien de la machine de coulée continue Download PDF

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Publication number
EP0252008B1
EP0252008B1 EP87810354A EP87810354A EP0252008B1 EP 0252008 B1 EP0252008 B1 EP 0252008B1 EP 87810354 A EP87810354 A EP 87810354A EP 87810354 A EP87810354 A EP 87810354A EP 0252008 B1 EP0252008 B1 EP 0252008B1
Authority
EP
European Patent Office
Prior art keywords
side dam
casting
blocks
carrier
dam according
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.)
Expired - Lifetime
Application number
EP87810354A
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German (de)
English (en)
Other versions
EP0252008A2 (fr
EP0252008A3 (en
Inventor
Wilhelm Friedrich Lauener
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.)
Larex AG
Original Assignee
Larex AG
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 Larex AG filed Critical Larex AG
Priority to AT87810354T priority Critical patent/ATE55931T1/de
Publication of EP0252008A2 publication Critical patent/EP0252008A2/fr
Publication of EP0252008A3 publication Critical patent/EP0252008A3/de
Application granted granted Critical
Publication of EP0252008B1 publication Critical patent/EP0252008B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0605—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two belts, e.g. Hazelett-process
    • 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
    • B22D11/066—Side dams

Definitions

  • the invention relates to a side dam for the lateral closure of the casting space of a continuous casting machine with rotating molds, with links connected in a chain-like manner, which lie in the area of the casting space between the rotating molds and close the casting space and run with the casting material, the orbit of the side dam in one plane parallel to the mold surfaces in the areas of the casting space.
  • side dams for the aforementioned purpose consist of an endless, flexible steel strip or wire rope, on which cuboid blocks are attached, the dimensions of which are of the order of about 40 to 60 mm in length and 40 to 60 mm in width, and the height of which is the thickness of the cast Band or strand corresponds (Hermann, handbook of continuous casting, page 49, picture 140, 142).
  • the side dams are considered wear parts, and their manufacture is complex and correspondingly expensive. In addition, handling the finished side dams and assembling them in the casting machine is extremely uncomfortable.
  • a first aim of the present invention is to provide a solution to these problems and to ensure optimal guidance, sealing action and movement of the members of the side dam both in the area of the casting space and in particular at the deflection points.
  • This solution consists in that the links have a pivotable foot on one side and are connected to the foot of the adjacent link on the other side by means of a pivotable coupling rod. Thanks to the special pivot connection of the links of the side dam with special feet, an optimal movement sequence is achieved.
  • the known side dams mentioned have a limited lifespan due to the thermal and mechanical stress and often give rise to malfunctions and interruptions in operation.
  • Another object of the present invention is to achieve a significant improvement in this direction as well.
  • the solution is that the links of the side dam each consist of a carrier which is connected in a chain-like manner to the other carriers and each consist of an interchangeable block, each block being connected to the associated carrier by means of releasable holding means. This makes it possible to replace individual damaged blocks during operation, so that interruptions in operation occur far less frequently than with known machines.
  • the easy interchangeability of the blocks is particularly favored if, according to the first solution mentioned above, the orbit of the side dam lies in a plane parallel to the mold surfaces. Any blocks to be exchanged are then on the outside and can be removed from the outside and replaced by new blocks from the outside.
  • the links at the deflection points are free to move freely and independently of one another, for example a chain, radially and in the direction of rotation, which permits problem-free deflection, and that they are rigid and rigid in the area of the casting space are practically immovable and guided at a constant speed.
  • This solution also allows the use of longer links in the order of magnitude of 100 to 250 mm or more, which has an additional advantageous effect on the production costs and significantly reduces the time previously required when changing a side dam.
  • the side dam can run freely due to friction with the molds and the cast material or can be driven via a deflection roller.
  • the side dam designed as an endless, chain-like structure, is guided over two deflection rollers 1 and 2.
  • the two rollers are equipped on the circumference with cylindrical pins or supports 3, which are dimensioned such that they engage in corresponding semi-cylindrical notches 4 of each foot 5 of a link 6 of the side dam.
  • the feet 5 of all links are articulated with a chain 7.
  • each foot 5 is pivotally mounted between two side plates 9 and 10 of a box-shaped carrier.
  • the side walls 9 and 10 are bolted or riveted together by means of bolts 11.
  • a coupling rod 12 is pivotably mounted on the bolt 8 of each carrier 9, 10.
  • the other end of the same is also pivotally mounted on the outer end of the adjacent support 9, 10 in bearing bushes 13 by means of a bolt 14.
  • the carriers 9, 10 are thus arranged outside the chain 7 with respect to the same radially and somewhat movable in the circumferential direction.
  • the support on the deflection rollers 1 and 2 is carried out neither by the chain 7 nor by the carrier 9, 10 directly, but by the feet 5 of the carrier.
  • Each block has a notch 16 in the center, into which a wedge 17 engages, which is fastened to the outside of the carrier 9, 10.
  • One possibility of fastening the blocks to the supports is that each block 15 preferably has an eyelet on both sides of the notch 16, to which tension springs 19 are suspended, the other end of which is anchored to the bolt 20.
  • the bolts 20 are hollow so that they can be gripped from the outside with a mandrel, and they are held in locking recesses 21 at one end by L-shaped slots 22. They have shoulders at the ends, which axially secure them between the side walls 9 and 10.
  • FIG. 6 Another type of fastening is that the blocks 15 are held on the carriers by magnetic forces, for which purpose a permanent magnet 35 with sufficient attraction is installed between the side walls by means of rivets 37 (FIG. 6).
  • a permanent magnet 35 with sufficient attraction is installed between the side walls by means of rivets 37 (FIG. 6).
  • Several and / or other magnets, e.g. Pot magnets can also be used.
  • the magnetic force is advantageously chosen so that a block is securely held, but on the other hand can be removed by hand and replaced by another.
  • Ceramic or non-magnetic blocks 15 these can be provided with a ferromagnetic plate 36 fastened on the side facing the magnet.
  • An antimagnetic material preferably austenitic steel sheet, is used as the material for the side plates 9.
  • the feet 5 are supported with their flat inner surfaces 5a on straight guide rails 23 and thus guide the links or the blocks 15 straight.
  • the blocks 15 lie against one another and form a tight lateral closure of the casting space 24.
  • the blocks 15 are already guided in the area of the pouring nozzle 26 and thus also form a seal to the rear.
  • a drive can be provided which moves the blocks 15 downward in the area of the casting space 24 at the desired speed corresponding to the casting strip in FIG. 1.
  • these blocks can also be taken along by the cast material and thus drive the entire side dam.
  • the length of the connecting rods 12 and the arrangement of their pivot axes 8 and 14 in the adjacent supports are dimensioned such that the supports 9, 10 and the blocks 15 lie on the straight sections of the side dam at exactly the same height above the guide rails 23, so that the outer surfaces the blocks 15 merge into each other.
  • the coupling rods 12 ensure that the blocks move freely apart in the circumferential direction and can also move radially inwards in accordance with the pivoting of the coupling rods, so that the critical, outermost edges 15a of the blocks 15 when lifting off the solidified cast strip 30 do not penetrate its side surface 30a but be lifted off cleanly. This process is particularly clear and somewhat exaggerated in Fig. 1 below.
  • Defective blocks 15 can be easily removed and replaced on the outer, exposed run of the side dam during operation. Using tension springs for holding the blocks, all that is necessary for this purpose is to unhook the bolts 20 from their catches 21 and to guide them inwards and upwards in the slots 22, with the result that the springs 19 can be relaxed and finally removed with the block 15. Then a new block is inserted, its springs 19 are attached to the bolt 20 and the bolts for tensioning the springs are returned to their catches 21.
  • one block to be replaced can be lifted by hand and another can be put on.
  • the blocks 15 are of the same thickness as the carriers 9, 10. In the event that thicker strips have to be produced, the blocks 15 can also be of a thicker design. Of course, the pouring nozzle must also correspond to the strip thickness to be cast. In both cases, the blocks 15 with their supports 9, 10 can penetrate as deep as desired between the mold strips 25 in a relatively large area and thus determine the width of the cast strip.
  • the frame on which the side dam is mounted can be arranged with the lever arm 28 and the spring 27 on a slide which can be adjusted laterally in order to vary the casting width.
  • FIG. 5 shows such an embodiment variant, in which corresponding parts have the same designations as in FIGS. 1 to 4.
  • An axis 31 protrudes beyond the two side walls 9 and 10 of the carrier. It carries two guide rollers 32 which are supported against additional guide rails 33 and 34 which are mounted on the guides 23. Corresponding additional guide rails 33 and 34 can of course be provided at the deflection points.
  • the feet 5 ' engage in a groove 23a of a guide rail 23', with which the links 6 are also supported vertically.
  • the upper mold belt 25 ' is also indicated in FIG. 5.
  • the figure also shows a variant of the block 15, which is denoted here by 15 'and has a concave outer surface 15b.
  • a cast strip with a convex edge is produced, which is desirable in many cases, in particular in the case of thicker strips and when casting steel.
  • chain wheels could also be provided, in which the chain sections or a coherent, endless chain engages.
  • the feet would have to grip around the chain and be attached to it in an articulated manner, or else the chain wheels would have gaps to accommodate the feet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Blast Furnaces (AREA)
  • Motor Or Generator Cooling System (AREA)

Claims (13)

1. Bloc de rive pour la fermeture de la chambre de coulée (24) d'une machine de coulée continue avec des coquilles circulantes (25), avec des chaînons (6) liés entre eux sous forme de chaîne qui, dans le domaine de la chambre de coulée, sont disposés l'un contre l'autre entre les coquilles circulantes, fermant l'espace de coulée et avançant avec la masse de coulée (30), la trajectoire du bloc de rive (6, 7) se trouvant dans un plan parallèle aux surfaces des coquilles (25) dans le domaine de l'espace de coulée (24), caractérisé en ce que les chaînons (6) comprennent d'un côté un pied pivotant (5) et qu'ils sont reliés de l'autre côté au pied (5) du chaînon voisin (6) à l'aide d'une tige de couplage pivotante (12).
2. Bloc de rive selon la revendication 1, caractérisé en ce que les chaînons consistent chacun en un porteur (9, 10) relié sous forme de chaîne avec les autres porteurs, et en un bloc interchangeable (15), chaque bloc étant relié au porteur associé par des moyens de retenue détachables.
3. Bloc de rive selon la revendication 1 ou 2, caractérisé en ce que les pieds sont des éléments de guidage (5) qui peuvent être menés librement sur des poulies de guidage (1, 2), et en ce qu'elles ont une vitesse régulière à leur entrée dans le domaine de l'espace de coulée (24), en ce que la distance entre la ligne médiane de l'espace de coulée (24) et le bloc de rive n'est pas soumise à des fluctuations lors de la rotation des poulies de guidage (1, 2).
4. Bloc de rive selon l'une des revendications 1 à 3, caractérisé en ce que les blocs (15) sont en matériau céramique ou en matériaux métalliques, ou qu'ils sont prévus avec une couche de protection céramique ou chimique.
5. Bloc de rive selon l'une des revendications 1 à 4, caractérisé en ce que les blocs (15; 14 ?) ont une longueur de 100 à 250 mm ou plus.
6. Bloc de rive selon l'une des revendications 1 à 5, caractérisé en ce que la base de chaque porteur consiste en deux plaques latérales (9, 10) liées l'une à l'autre de manière fixe avec une distance mutuelle telle que la dimension mesurée par dessus les plaques est égale à ou plus petite que l'épaisseur du bloc (15), tous les éléments de fixation et de liaison pour les blocs étant disposés entre les plaques.
7. Bloc de rive selon l'une des revendications 1 à 6, caractérisé en ce que les blocs (15) sont tendus à l'aide de ressorts (19) sur les porteurs (9, 10) ou tenus magnétiquement sur les porteurs.
8. Bloc de rive selon l'une des revendications 1 à 7, caractérisé en ce que les plaques (9, 10) comprennent des fentes en forme de L (22) pour saisir et tendre un ressort (19) ancré au bloc (15) par son extrémité libre à l'aide d'un boulon transversal (20) et pour loger le boulon dans un évidement (21).
9. Bloc de rive selon la revendication 8 ( 9?), caractérisé en ce que le boulon (20) comprend un perçage longitudinal.
10. Bloc de rive selon l'une des revendications 1 à 9, caractérisé en ce que chaque porteur (9, 10) est lié de manière pivotante à une extrémité avec un pied (5) et est guidé à l'autre extrémité par une tige (12) qui agit de manière pivotante d'une part sous le bloc (15) d'un chaînon et d'autre part au point de rotation (8), ou à proximité de celui-ci, du pied (5) du porteur voisin (9, 10).
11. Bloc de rive selon l'une des revendications 1 à 10, caractérisé en ce que le bloc de rive est pivotant dans le plan de circulation et qu'il peut être appuyé de manière élastique contre la face frontale de la buse de coulée (26).
12. Bloc de rive selon l'une des revendications 1 à 11, caractérisé en ce que la surface (15b) de chaque bloc (15') qui limite l'espace de coulée (24) est profilée, p. ex. courbée de manière concave.
13. Procédé de maintenance d'une machine de coulée continue avec des coquilles (25) circulantes et avec un bloc de rive selon l'une des revendications 2 à 12, dans lequel on fait circuler le bloc de rive dans un plan parallèle aux surfaces des coquilles (25) dans le domaine de l'espace de coulée, caractérisé en ce que l'on échange pendant le fonctionnement des blocs (15) au brin du bloc de rive qui n'agit pas entre les coquilles.
EP87810354A 1986-07-01 1987-06-22 Bloc de rive pour la fermeture latérale de la chambre de coulée d'une machine de coulée continue à deux bandes et procédé pour l'entretien de la machine de coulée continue Expired - Lifetime EP0252008B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810354T ATE55931T1 (de) 1986-07-01 1987-06-22 Seitendamm zum seitlichen abschluss des giessraumes einer stranggiessmaschine mit umlaufenden kokillen und verfahren zum unterhalt der stranggiessmaschine.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH264386 1986-07-01
CH2643/86 1986-07-01
CH341086 1986-08-25
CH3410/86 1986-08-25

Publications (3)

Publication Number Publication Date
EP0252008A2 EP0252008A2 (fr) 1988-01-07
EP0252008A3 EP0252008A3 (en) 1988-10-05
EP0252008B1 true EP0252008B1 (fr) 1990-08-29

Family

ID=25691020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810354A Expired - Lifetime EP0252008B1 (fr) 1986-07-01 1987-06-22 Bloc de rive pour la fermeture latérale de la chambre de coulée d'une machine de coulée continue à deux bandes et procédé pour l'entretien de la machine de coulée continue

Country Status (8)

Country Link
US (1) US4794978A (fr)
EP (1) EP0252008B1 (fr)
JP (1) JPH0832357B2 (fr)
AT (1) ATE55931T1 (fr)
CA (1) CA1277119C (fr)
DE (1) DE3764556D1 (fr)
ES (1) ES2016860B3 (fr)
GR (1) GR3001114T3 (fr)

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JPH0636965B2 (ja) * 1987-01-27 1994-05-18 三菱重工業株式会社 ベルト式連続鋳造機
JP3132733B2 (ja) * 1991-07-16 2001-02-05 沖電気工業株式会社 ドット印字ヘッドの駆動方法
US5645159A (en) * 1994-03-30 1997-07-08 Lauener Engineering, Ltd. Method and apparatus for continuously casting metal
US6325204B1 (en) 1994-03-30 2001-12-04 Nichols Aluminum-Golden, Inc. Method and drive apparatus for continuously casting metal in a continuous block caster
US5645122A (en) * 1994-03-30 1997-07-08 Lauener Engineering, Ltd. Block fixation and adjustment in a continuous caster
US5725046A (en) * 1994-09-20 1998-03-10 Aluminum Company Of America Vertical bar caster
US5687789A (en) * 1995-12-28 1997-11-18 Larex A.G. Caster with improved coil changing system
US5787968A (en) * 1995-12-28 1998-08-04 Larex A.G. Movably mounted side dam and an associated method of sealing the side dam against the nozzle of a belt caster
US5640868A (en) * 1995-12-28 1997-06-24 Larex A.G. Apparatus and method for work hardening an endless belt for use in a belt caster
US5711367A (en) * 1996-01-11 1998-01-27 Larex A.G. Apparatus for delivering molten metal to a caster including wear strips
US5613547A (en) * 1996-01-11 1997-03-25 Larex A.G. Nozzle with a baffle for a caster and an associated method of casting molten metal
US5671801A (en) * 1996-01-11 1997-09-30 Larex A.G. Cooling system for a belt caster and associated methods
US5778967A (en) * 1996-01-11 1998-07-14 Larex A.G. Side dam for a caster having improved contact with solidifying metal
US5823246A (en) * 1997-03-03 1998-10-20 Larex A.G. Tundish including a baffle for directing molten metal therethrough and an associated caster and method of casting molten metal
US5967220A (en) * 1997-03-25 1999-10-19 Larex, A.G. Caster including a gas delivery means to resist backflowing and freezing of molten metal to the tip of a nozzle
US5964276A (en) * 1998-07-24 1999-10-12 Hazelett Strip-Casting Corporation Edge-DAM blocks having abuttable upstream and downstream faces meshing with each other in mating relationship for continuous casting of molten metals--methods and apparatus
US5975190A (en) * 1998-09-30 1999-11-02 Golden Aluminum Company Block fixation in a continuous caster
CN1964806B (zh) * 2004-01-14 2012-01-25 拉米克股份公司 铸造机、铸造方法及更换铸造机块部件的方法
US8122938B2 (en) * 2009-03-27 2012-02-28 Novelis Inc. Stationary side dam for continuous casting apparatus
DE102011078654A1 (de) * 2011-07-05 2013-01-10 Sms Siemag Ag Vorrichtung zur Seitenabdichtung einer Gießanlage
DE102016108806A1 (de) * 2016-05-12 2017-11-16 Salzgitter Flachstahl Gmbh Horizontale Bandgießanlage mit optimierten Seitenbegrenzungselementen
JP6867488B2 (ja) * 2016-11-29 2021-04-28 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 搬送装置
IT201700055326A1 (it) 2017-05-22 2018-11-22 Cryovac Inc Confezione, apparecchiatura e processo di realizzazione di detta confezione
IT201700073576A1 (it) 2017-06-30 2018-12-30 Cryovac Inc Supporto, confezione, apparecchiatura e procedimento di realizzazione di detto supporto e detta confezione
WO2019123255A1 (fr) 2017-12-22 2019-06-27 Cryovac, Llc Emballage, appareil et procédé de fabrication dudit emballage
EP3728068B1 (fr) 2017-12-22 2022-02-02 Cryovac, LLC Emballage, processus et appareil de fabrication dudit emballage

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US2640235A (en) * 1949-06-02 1953-06-02 Clarence W Hazelett Metal manufacturing apparatus
FR1043135A (fr) * 1951-06-25 1953-11-06 Ile D Etudes De Centrifugation Procédé et dispositifs pour la coulée continue de métaux
US3342251A (en) * 1965-06-03 1967-09-19 Reliance Steel Prod Co Apparatus for casting of sections with parallel members and transverse connections
US3865176A (en) * 1973-09-28 1975-02-11 Hazelett Strip Casting Corp Casting method for twin-belt continuous metal casting machines
JPS59199154A (ja) * 1983-04-28 1984-11-12 Kawasaki Steel Corp 湾曲式連続鋳造機
JPS614441U (ja) * 1984-06-14 1986-01-11 富士電機株式会社 高圧ダイオ−ドアレ−
DE3422654C1 (de) * 1984-06-15 1986-01-23 Schweizerische Aluminium Ag, Chippis Kokillenglied einer Raupenkokille
US4632176A (en) * 1985-04-19 1986-12-30 Pearce Ronald A Apparatus for continuous strip casting of aluminum sheet material

Also Published As

Publication number Publication date
ES2016860B3 (es) 1990-12-01
EP0252008A2 (fr) 1988-01-07
EP0252008A3 (en) 1988-10-05
CA1277119C (fr) 1990-12-04
GR3001114T3 (en) 1992-05-12
ATE55931T1 (de) 1990-09-15
US4794978A (en) 1989-01-03
JPH0832357B2 (ja) 1996-03-29
JPS6330154A (ja) 1988-02-08
DE3764556D1 (de) 1990-10-04

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