EP0615802B1 - Installation de coulée continue de lingots pour laminage - Google Patents

Installation de coulée continue de lingots pour laminage Download PDF

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Publication number
EP0615802B1
EP0615802B1 EP94101178A EP94101178A EP0615802B1 EP 0615802 B1 EP0615802 B1 EP 0615802B1 EP 94101178 A EP94101178 A EP 94101178A EP 94101178 A EP94101178 A EP 94101178A EP 0615802 B1 EP0615802 B1 EP 0615802B1
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EP
European Patent Office
Prior art keywords
casting machine
continuous casting
machine according
vertical continuous
raised part
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
EP94101178A
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German (de)
English (en)
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EP0615802A2 (fr
EP0615802A3 (fr
Inventor
Wolfgang Dr.-Ing. Schneider
Werner Dr.-Ing. Droste
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.)
Vereinigte Aluminium Werke AG
Vaw Aluminium AG
Original Assignee
Vereinigte Aluminium Werke AG
Vaw Aluminium AG
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Publication of EP0615802A2 publication Critical patent/EP0615802A2/fr
Publication of EP0615802A3 publication Critical patent/EP0615802A3/fr
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Publication of EP0615802B1 publication Critical patent/EP0615802B1/fr
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    • 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

Definitions

  • the invention relates to a vertical continuous casting plant for billets, consisting of a mold with a shaping attachment 1 and one that closes the mold 2 downwards in the start-up state Sprue stone 3, which from the shaping attachment 1 a metal melt directed vertically at the sprue records.
  • Vertical continuous casters of the type mentioned are for example from the aluminum paperback, 14th edition, P.22ff known.
  • the mold consists of a low, water-cooled Ring that can be lowered before the start of casting by one on the Casting base attached or a sprue completed becomes.
  • Round bars are made with cylindrical mold and cylindrical cast stone, including centrally arranged Elevations were used to fix the ingot foot (see e.g. US 5 217 060). With the onset of solidification the pouring furnace flowing in at a low temperature via a channel Metal, the table is lowered and the exiting one Block cooled directly by targeted water spraying.
  • the bar base bulges with its Corners upwards away from the sprue.
  • the extent of this warping grows with the aspect ratio and with the bar format.
  • the bars lose their stability due to the warping on the sprue. In the gap between the sprue and Ingot runs water, evaporates and leads to "bumping". In connection the bars can wobble with less stability and goes wrong. The thermal contact continues through the gap lost between the sprue and the bottom of the bar.
  • the casting conditions are particularly difficult to control Continuous casting of rolled bars, because of the different Length-width ratios in the rectangular cross-section entirely different mass distributions occur.
  • the ingot can melt on the underside or under conditions break open and metal can flow out. This leads to one of the casting situation, which is critical in terms of safety.
  • the rim shell formed there from the cooling mold tread lifted off, the growth of the edge shell is disturbed, at unfavorable conditions, the edge shell can break open and melt and melt can leak down. This leads to then again on the one hand to a critical casting situation, on the other hand So-called beards form on the narrow sides (narrow.
  • N.B.Bryson (Canadian Metallurgical Quarterly, 7 (1968, pp.55 / 59) proposes a so-called pulse water cooling, in which in the Pouring phase of the cooling water flow is interrupted periodically.
  • the bar surface can temporarily heat up again and cooling voltages are not so strong built up, the bar foot curvature is reduced.
  • systems become complex, fast-switching Valves necessary to quickly turn the cooling water quantities off and on to be able to switch on, moreover by the fast Switch strong pressure surges can be induced in the pipe network.
  • H.Yu Light Metals, AIME Proceedings, 1980, pp.613 / 628) tried to influence the actual cooling process by using gases, preferably CO2, dissolves in water.
  • gases preferably CO2
  • the gas When hitting the hot Ingot, the gas is supposed to form a thin insulating vapor layer, which reduces the cooling, reduces the tension build-up and the bar foot curvature is reduced.
  • water depends heavily on the initial temperature and the Composition of the water.
  • a targeted attitude of Cooling effect i.e. a dosage tailored to the water quality the addition of CO2 is only possible with complex measuring methods.
  • the device consists of a detachably fastened in the starter block Lag screw that has a conical head with a also conical has tapered thread.
  • the object of the present invention is a vertical continuous casting installation for rolling bars of the type mentioned at the beginning improve that cast-on security and ingot stability enlarged and the formation of a warp as well as the appearance foot scrap is significantly reduced.
  • the side surfaces of the Collection By a clever design of the side surfaces of the Collection, for example by corrugation or continuous Angle change, it manages the heat flow from the To influence the melt in the sprue stone favorably, so that a good cooling of the solidifying ingot at high Heat dissipation is made possible from the inside is cooled or consists of an insert part that in the bottom of the sprue is inserted positively.
  • the insert is made of made of a copper alloy that is particularly cheap Has heat transfer properties.
  • This embodiment represents a particularly simple one and safe device for cooling the sprue represents.
  • the sprue block according to the invention is in the Top view according to view A and in two sections B, C shown.
  • the sprue stone (3) has a circumferential one Edge (4), which is beveled towards the recess (5).
  • the depression according to the invention 80 mm while at a bar format of 2200 x 600 mm or 1050 x 600 mm the depression can be 140 mm +/- 40mm.
  • the width S the circumferential edge is preferably 5-40 mm.
  • the inclination of the side wall (11) and (12) is between 30 - 60 ° (angle d) during the inclination of the side surface (13) between 30 - 36 ° (angle e) measured to the vertical is.
  • the distances between the edge (4) and the elevation (6) on the ground the recess (5) are between 0-200 mm, the Distance to the narrow side measured as a preferred 100 - 150 mm and to the broad side of the sprue down, measured as b is preferably 30-100 mm.
  • a drain channel (32) for what accumulates in the recess Cooling water.
  • the height H of the elevation (6) is preferably approximately that Half to two thirds of the height h of the recess (5). It is advantageous if the edges of the side walls (11), (12) and (13) of the survey (6) are rounded off. On average B and C are the rounding radii with R.
  • Fig. 1 shows the simplest possible embodiment of the invention.
  • the sprue stone is made of solid material. As a basic shape, it has a trough-shaped inner contour, where the tub depth h depends on the bar width is. Such a tub usually has one circumferential edge with the width s, this width on the bar size does not have to be constant.
  • the tub is not completely worked out from the solid material, the cone according to the invention remains in the tub.
  • the shape of the cone is rectangular. Of the Distance a is chosen so that additional drainage holes to prevent bumping to the sides or can be attached downwards. These holes are closed in a known manner at the start of casting.
  • the size of the cone and the tub can be coordinated so that the filling volume of the stone corresponds to that of a conventional sprue stone. Then it is also possible to combine the process of casting on with a sprue block with a cone with already known measures for reducing stress in the casting phase, such as for example the CO 2 technology, the pulsed water technology or the turbo technology.
  • roof plane (25) of the elevation in the longitudinal direction of the sprue flattened towards the narrow sides. This results in sloping roof surfaces (23), (24), which is particularly advantageous for a flat metal inlet for the formation of a stable boundary layer to care.
  • the lowering of the roof levels (23), (24) to the Narrow sides of the rectangular sprue become straight chosen so that the edge shell formed on the roof at and after the bar foot warps in the pouring phase is not flown directly.
  • the first example is a bar measuring 600 x 200 mm, so that the outer dimension of the sprue is also 600 x 200 mm.
  • the roof area (23) of the roof plane (25) can have the following values: L 1 is approximately 1/8 of the cone length and L 2 is approximately 1/4 of the cone length, the length of the cone being 480 mm in the foot area and 285 in the roof area mm. If the elevation is conical, the thickness or width is 70 mm in the upper region and 100 mm in the lower region of the cone foot.
  • a bar measuring 1000 x 400 mm is cast with a suitably dimensioned mold.
  • the sprue stone has a conical elevation, the length of which is 870 mm in the lower region (base level) and 620 mm in the upper region.
  • the thickness or width of the conical elevation is 95 mm in the upper area and 200 mm in the foot area.
  • This information relates to the formats of the sprue shown in Figure 2.
  • the angles g and f associated with the lengths L 1 and L 2 are in the range from 30-60 °. When rounding off the fold edge, the counter angles must be formed to determine the correct position.
  • FIG 3 shows a further variant of the invention Shown in the sprue, in which the flattening in longitudinal and Has an elliptical plan in the transverse direction, with the radii R1, R2, R3 and R4.
  • Fig. 1 Similar to Fig. 1 are also in the embodiment 3 to choose the angles c, d and e so that the Ingot when shrinking a firm hold on the cone-like Has seat of the survey (6), but at the end of Casting process can be easily removed. With one too steep angle of, for example, over 65 ° slips Ingot up on the cone and finds no solid Stop. If the angle is too small of less than 25 ° the ingot clings so tightly to the cone that it can no longer be lifted off the sprue.
  • the assessment with an elliptical layout has the advantage that a larger range is specified for the optimal angle can be made without the bar foot shrinking too tightly or loses its hold.
  • FIG Side surfaces of the elevation (16) are spherical. From Looking at the bottom of the recess (5), the angle x increases of the inclined side surfaces (15) continuously so that a bevel (28) is formed. Compared to the variant shown in Fig. 3 has the continuous casting system with the sprue shown here more favorable operating behavior in the sprue phase and on Pouring.
  • Angußstein has the elevation (33) Side surfaces (34), (35) with a corrugated structure.
  • the Corrugations (14) have alternating angles v, w, where one of the two angles is smaller and one larger than is the optimal angle. This allows the bar foot to open shrink the conical side surfaces and at the same time slide up. The ingot has therefore during the Pouring a firm hold.
  • the adhesive surface between bars and corrugated Side walls (34), (35) so small that the bar without great additional effort from the sprue can be.
  • the heat problem is that the sprue stone is not worked out from a full block but that the bump made of another metal is preferred a copper alloy is manufactured and in the Sprue stone is used in a fluid form.
  • the invention is Sprue stone in the trough-shaped recess (5) provided with an elevation (38) on its top equipped with a groove (26) in the longitudinal direction is.
  • the depth of the groove (26) is such that the bar base up on the cone-shaped part of the elevation can slip without falling out of the groove.
  • the width of the groove is dimensioned so that it melts with the metal can be filled in well, so that a forms a fixed web on the bar foot, which engages in the groove (26).
  • the angle e of the side surface of the elevation on the Long side is larger than the optimal angle, is expressed the ingot shrinking up on the cone. It can happen that the ingot is on the lifts both long sides differently. This has to As a result, the bar gets a kink in the foot area. The ingot is guided through the groove so that it is on both Sides evenly slides up on the cone and has a firm hold. Basically, the groove can also through one or more holes or through another Leadership to be replaced.
  • sprue 8 are a plurality of elevations running in parallel (33), (34) in the longitudinal direction in the depression of the sprue arranged. Compared to that shown in Fig. 1 Sprue stone with only one elevation can increase the height hs are kept smaller in the present example, so that the enclosed by the border (4) Volume increased compared to the previous examples.
  • the melt absorption capacity of the sprue 8 is particularly for alloys that are difficult to cast cheaper.
  • Fig. 9 is a sprue block according to the invention with several Cooling water holes (29) shown in the survey (6).
  • Water is preferably used as the cooling medium.
  • the cooling medium can also be targeted using conventional inserts down to particularly stressed areas of the cone-shaped Elevation to be directed.
  • Fig. 9 are cooling coils as inserts shown.
  • the water inlet is marked with (39) and opens into a water chamber (40) from which the cooling spiral is charged with the cooling medium.
  • the water drain is via a line (41) directly from the Cooling spiral out through the wall of the sprue guided.
  • the secondary cooling water is made using a sprue (3) attached collection device and collected Drilled holes (31) in the interior of the sprue.
  • the collecting device preferably consists of baffles (30) that is right at the bottom of the sprue are attached.
  • the water comes out through a pipe (42) in the central axis (8) below the Elevation (6) is arranged.
  • the secondary water is with Arrows (43) indicated. Because the cooling only when filling of the sprue and the mold until the Lower bar edge required in the area of the secondary cooling and it makes sense, it is sufficient that the cooling water supply also from the secondary cooling alone branched water is accomplished.
  • FIG. 11 shows one in the longitudinal direction from the peripheral edge (4) continuous part of the elevation (17), which has a trapezoidal cross section.
  • the inclined side surfaces (18), (19) leave relatively wide Channels b arise, so that here preferably easily pourable Alloys such as Pure aluminum used can be.
  • FIG. 12 A schematic representation of the behavior of the edge shell in the area of the narrow sides of a continuous ingot casting plant shows Fig. 12.
  • the timing is with T1 - T4 specified, the formation of the warping in the Bar foot (42) can be seen.
  • Number (1) is a hot head designated with overhang F.
  • the sprue stone (3) is in the mold (2) is retracted and the filling process begins.
  • T2 the edge shell has completely developed and at T3 the ingot buckles due to the shrinking process on. Can in the dotted areas Exactions occur.
  • FIG. 13 shows that with an exemplary embodiment of a sprue according to the invention for a format of 1100 x 400 mm reduction in bar warping compared to a conventional sprue same casting conditions.
  • the conventional sprue stone had a depth of 60 mm, the sprue according to FIG. 1 a depth of 160 mm and a cone of 100 mm.
  • the Warpage was linear during casting Position sensor recorded, the measuring points were on the In the middle of the narrow side, each is shown Mean of the left and right (or front and rear) measured values.
  • the warping at the end of the sprue phase was from about 33 mm to about 18 mm on each Side reduced.
  • the sprue with cone especially the Warping speed reduced at the beginning of warping.
  • This speed is the conventional one Sprue block at approx. 50 mm / min on each side at the level of the Casting speed.
  • the warping on the two narrow sides means that that one of the narrow sides is opposite to the casting direction can move up into the mold.
  • the maximum warping speed is less than 20 mm / min reduced.
  • Even with one-sided warping the resulting warping speed of the other side with less than 40 mm / min smaller than that Lowering speed.
  • the lower warpage also has a smaller gap between mold and sprue.
  • water penetrates, the water evaporates and the ingot can start "bumping" on the sprue.
  • This effect is tried through drainage holes in the Counter the area of the narrow sides in the tub.
  • holes are made with aluminum plugs locked. The plugs are in the bottom of the bar cast in and by the deformation of the bar base pulled out of the holes. Before the penetrating into the gap Water can cause the bars to bump through this drain holes. Due to the lower deformation the gap with the cone has less penetration Water, so fewer drainage holes are necessary.
  • Fig. 12 it is indicated schematically how the edge shell 43 in the area of the narrow sides during the warping process lifts off the tread of the mold and a gap with greatly reduced heat removal from the outer shell evokes.
  • segregations can occur arise up to the complete melting of the shell.
  • This gap becomes smaller.
  • Fig. 14 are the results of the attempts to reduce the warping when using a sprue Cone for a format of 600 x 200 mm compared to a conventional sprue.
  • the casting conditions were in all attempts equal, especially the same ones Pouring speeds and cooling water quantities used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (29)

  1. Installation de coulée continue verticale pour lingot de laminage, comprenant une coquille dotée d'un prolongement de mise en forme (1) et un culot d'injection (3) qui referme la coquille (2) vers le bas dans l'état rapproché, ledit culot d'injection (3) recevant depuis le prolongement de mise en forme (1) une fonte de métal dirigée en direction verticale sur ledit culot d'injection,
    caractérisée en ce que
    le culot d'injection (3) est constitué d'un bloc qui correspond approximativement au format de la coquille, dans lequel est ménagé un renfoncement (5) sensiblement en forme de cuvette, ledit renfoncement étant délimité par une bordure périphérique (4),
    dans le renfoncement (5) et symétriquement par rapport a l'axe médian (7, 8) du culot d'injection, est agencée au moins une bosse (6) avec un contour rectangulaire ou ellipsoïdal en vue de dessus, les parois latérales de la bordure périphérique (4) et de la bosse (6) étant biseautées en direction du renfoncement (5), et le biseautage s'étend en forme de V, vu en section transversale ; et
    entre la paroi (4) et la bosse (6) il existe dans le renfoncement (5) un volume de cuvette suffisant pour la réception de la fonte et pour la formation d'une coque de bordure.
  2. Installation de coulée continue verticale selon la revendication 1, caractérisée en ce que
    le renfoncement (5) est constitué par des surfaces latérales inclinées en forme de V et réalisées de manière asymétrique, les surfaces latérales (9, 10) de la bordure périphérique (4) étant inclinées par rapport à la verticale sous un angle c compris entre 0° et 30°, tandis que les surfaces latérales (11, 12) de la bosse (6) sont inclinées par rapport à la verticale sous un angle d compris entre 25° et 65° degrés.
  3. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    le contour approximativement rectangulaire présente une dimension qui correspond au contour de la coquille.
  4. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la paroi du culot d'injection et/ou de la bosse présente un bombement, afin de compenser la variation de section transversale qui se produit lors du rétreint d'un lingot rectangulaire.
  5. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    pour une section rectangulaire, un angle e des surfaces latérales (13) sur les grands côtés de la bosse (6) est compris entre 30° et 36°, mesuré par rapport à la verticale, et sur les petits côtés (11, 12) entre 30° et 60°.
  6. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    pour une section rectangulaire, la distance (A) entre les parois latérales de la bordure (4) et de la bosse (6) au fond du renfoncement (5) s'élève entre 100 mm et 150 mm sur le petit côté, et la distance (B) au niveau du grand côté s'élève entre 30 mm et 100 mm.
  7. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    au moins une paire de surfaces latérales opposées de la bosse (6) présentent des moletages en gradins (14).
  8. Installation de coulée continue verticale selon la revendication 7, caractérisée en ce que
    les moletages réalisés en gradins (14) de la bosse (6) présentent des angles alternants v, w.
  9. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    l'angle x des surfaces latérales (15) de la bosse (16), mesuré par rapport à la verticale, augmente en continu en partant du fond du renfoncement (5).
  10. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    les surfaces latérales (18, 19) de la bosse (17) s'étendent en direction longitudinale sans interruption jusqu'à la bordure des petits côtés (20, 21) du culot d'injection.
  11. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la bordure supérieure (4) présente une largeur (S) entre 5 mm et 40 mm.
  12. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la hauteur H de la bosse (6, 16, 17), vue en section transversale, est comprise entre 40% et 100% de la hauteur h de la bordure (4).
  13. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    le rapport entre la hauteur h de la bordure (4) et la plus grande largeur du renfoncement (5) dans la direction longitudinale est compris entre 1:2 et 1:3.
  14. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la face supérieure (25), tournée vers l'entrée de métal (22), de la bosse (6, 16, 17) est aplatie en partant du milieu en direction des côtés.
  15. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la région médiane de la bosse (6, 16, 17) est plane sur la face supérieure, et redescend vers le renfoncement (5) par l'intermédiaire de surfaces inclinées en forme de toit.
  16. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la face supérieure (25) de la bosse (6, 16, 17) comporte plusieurs perçages ou gorges (26) afin de réaliser une liaison à coopération de formes avec la fonte de métal solidifiée.
  17. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la bosse (6, 16, 17) et la face supérieure (25) présentent en vue de dessus un contour ellipsoïdal (27).
  18. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la surface latérale périphérique (15) de la bosse (16) est bombée vers l'extérieur, ou formée de façon convexe, et présente une pente de démoulage (25).
  19. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la bosse (6, 16, 17) est réalisée sous la forme d'une pièce d'insert (26), laquelle est constituée en matériau avec une meilleure conductivité thermique et une meilleure résistance à haute température par comparaison au matériau du culot d'injection, et est mise en place par coopération de formes dans le fond (27) du culot d'injection (3).
  20. Installation de coulée continue verticale selon la revendication 19, caractérisée en ce que
    la pièce d'insert (26) est constituée en alliage de cuivre.
  21. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la bosse (6, 16, 17) est revêtue en surface, au moins au niveau de la surface supérieure.
  22. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la bosse (6, 16, 17) est totalement ou partiellement lissée.
  23. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la transition depuis le plan au fond du renfoncement (5) vers la paroi latérale de la bosse (6) est arrondie et présente un rayon inférieur à 5 mm.
  24. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    la bosse (6, 16, 17, 26) comporte au moins un perçage (29) pour de l'eau de refroidissement.
  25. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    le culot d'injection (3) comporte des tôles de guidage latérales (3) afin de capter l'eau de refroidissement qui s'écoule hors de la coquille (2), et
    l'eau de refroidissement collectée au pied des tôles de guidage (30) est amenée dans les perçages de refroidissement (31).
  26. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    des perçages de drainage (32) sont agencés au fond du renfoncement (5).
  27. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    il est prévu deux bosses (33, 34) qui s'étendent parallèlement et en direction longitudinale du culot d'injection (3), lesdites bosses présentant une section de forme trapézoïdale, et la distance C entre les bosses parallèles est supérieure à la distance D, E par rapport à la bordure (4) du culot d'injection (3), et en ce que les perçages de drainage (32, 35) sont agencés dans le renfoncement (36, 37) entre les bosses parallèles.
  28. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    le prolongement de mise en forme (1) est constitué par un insert à tête de chauffage qui pénètre par un surplomb F dans la chambre de coquille.
  29. Installation de coulée continue verticale selon l'une des revendications précédentes, caractérisée en ce que
    à titre de prolongement de mise en forme, on utilise une coquille à "air", ou bien une coquille électromagnétique.
EP94101178A 1993-03-05 1994-01-27 Installation de coulée continue de lingots pour laminage Expired - Lifetime EP0615802B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4306943A DE4306943C2 (de) 1993-03-05 1993-03-05 Anfahrkopf für eine Vertikal-Stranggießanlage
DE4306943 1993-03-05

Publications (3)

Publication Number Publication Date
EP0615802A2 EP0615802A2 (fr) 1994-09-21
EP0615802A3 EP0615802A3 (fr) 1997-11-12
EP0615802B1 true EP0615802B1 (fr) 1999-08-11

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EP94101178A Expired - Lifetime EP0615802B1 (fr) 1993-03-05 1994-01-27 Installation de coulée continue de lingots pour laminage

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Country Link
US (1) US5947183A (fr)
EP (1) EP0615802B1 (fr)
JP (1) JP2668329B2 (fr)
AU (1) AU663435B2 (fr)
CA (1) CA2117016C (fr)
DE (2) DE4306943C2 (fr)
NO (1) NO300164B1 (fr)
RU (1) RU2082544C1 (fr)
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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6453712B1 (en) 2000-06-07 2002-09-24 Alcoa Inc. Method for reducing crop losses during ingot rolling
US6474074B2 (en) 2000-11-30 2002-11-05 International Business Machines Corporation Apparatus for dense chip packaging using heat pipes and thermoelectric coolers
JP5074197B2 (ja) * 2005-11-02 2012-11-14 東邦チタニウム株式会社 金属の溶解装置および製造方法
JP4586166B2 (ja) * 2006-06-21 2010-11-24 国立大学法人富山大学 羽毛状晶アルミニウム合金鋳塊及びその鋳造方法
US20090050290A1 (en) * 2007-08-23 2009-02-26 Anderson Michael K Automated variable dimension mold and bottom block system
US9545662B2 (en) * 2007-08-23 2017-01-17 Wagstaff, Inc. Automated variable dimension mold and bottom block system
US8893804B2 (en) 2009-08-18 2014-11-25 Halliburton Energy Services, Inc. Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well
US8646483B2 (en) 2010-12-31 2014-02-11 Halliburton Energy Services, Inc. Cross-flow fluidic oscillators for use with a subterranean well
US8733401B2 (en) * 2010-12-31 2014-05-27 Halliburton Energy Services, Inc. Cone and plate fluidic oscillator inserts for use with a subterranean well
US8356655B2 (en) 2011-02-09 2013-01-22 United Technologies Corporation Shot tube plunger for a die casting system
US8573066B2 (en) 2011-08-19 2013-11-05 Halliburton Energy Services, Inc. Fluidic oscillator flowmeter for use with a subterranean well
US8955585B2 (en) 2011-09-27 2015-02-17 Halliburton Energy Services, Inc. Forming inclusions in selected azimuthal orientations from a casing section
JP2013091072A (ja) * 2011-10-25 2013-05-16 Sumitomo Light Metal Ind Ltd アルミニウムの半連続鋳造装置および該装置を用いるアルミニウムの半連続鋳造方法
AR109299A1 (es) * 2016-08-08 2018-11-14 Vesuvius Crucible Co Placa de impacto
WO2018060246A1 (fr) * 2016-09-27 2018-04-05 Hydro Aluminium Rolled Products Gmbh Procédé de coulée multiple de barres métalliques
US20220362838A1 (en) * 2021-05-11 2022-11-17 Wagstaff, Inc. Starting head for a continuous casting mold and associated method
WO2023096919A1 (fr) * 2021-11-23 2023-06-01 Oculatus Llc Bloc inférieur pour coulée semi-continue

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE810062C (de) * 1948-10-02 1951-08-06 Ver Leichtmetallwerke Gmbh Verfahren und Vorrichtung zum Giessen von Bloecken, Barren o. dgl.
US3384152A (en) * 1966-04-01 1968-05-21 Anaconda Aluminum Co Starting block assembly for continuous casting apparatus
US3620285A (en) * 1969-03-21 1971-11-16 Olsson International Slab casting apparatus
BE757226A (fr) * 1969-10-08 1971-03-16 Alusuisse Dispositif pour la coulee verticale continue a plusieurs jets (multiple) de l'aluminium et de ses alliages
CA947940A (en) * 1970-03-12 1974-05-28 Robert S. Clegg Metal casting
US3702631A (en) * 1971-03-22 1972-11-14 Alcan Res & Dev Apparatus for continuous casting of metal ingots
US3702152A (en) * 1971-03-22 1972-11-07 Alcan Res & Dev Procedures and apparatus for continuous casting of metal ingots
CH631645A5 (de) * 1978-08-24 1982-08-31 Alusuisse Vorrichtung zum herausziehen eines metallstranges aus der kokille einer stranggussanlage.
GB2034216B (en) * 1978-11-02 1982-09-22 Olin Corp Mouldless casting
JPS5990434A (ja) * 1982-11-15 1984-05-24 Nec Corp 適応形反響消去装置
US4509580A (en) * 1982-12-09 1985-04-09 Kaiser Aluminum & Chemical Corporation Bottom block
JPS61195757A (ja) * 1985-02-26 1986-08-30 Ishikawajima Harima Heavy Ind Co Ltd ブロツク式連鋳機のスタ−ト法
JPS629747A (ja) * 1985-07-08 1987-01-17 Sumitomo Light Metal Ind Ltd 連続鋳造用鋳型装置
US4693298A (en) * 1986-12-08 1987-09-15 Wagstaff Engineering, Inc. Means and technique for casting metals at a controlled direct cooling rate
SU1764789A1 (ru) * 1989-08-07 1992-09-30 Ступинский металлургический комбинат Головка затравки дл полунепрерывного лить круглых слитков из алюминиевых сплавов
IT1243500B (it) * 1990-12-20 1994-06-15 Alures S C P A Fondello mobile per apparecchiature di colata in verticale di leghe leggere, particolarmente di alluminio e sue leghe
JPH07106433B2 (ja) * 1991-02-25 1995-11-15 新日本製鐵株式会社 双ロール式薄板連続鋳造におけるダミーシート
JPH0550186A (ja) * 1991-08-23 1993-03-02 Showa Alum Corp アルミニウムの半連続鋳造装置用下型

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JP2668329B2 (ja) 1997-10-27
EP0615802A2 (fr) 1994-09-21
JPH071083A (ja) 1995-01-06
CA2117016A1 (fr) 1994-09-06
DE59408598D1 (de) 1999-09-16
ZA941247B (en) 1994-09-19
NO300164B1 (no) 1997-04-21
DE4306943A1 (de) 1994-09-08
NO940709D0 (no) 1994-03-01
CA2117016C (fr) 2000-05-02
AU663435B2 (en) 1995-10-05
RU2082544C1 (ru) 1997-06-27
DE4306943C2 (de) 1995-05-18
US5947183A (en) 1999-09-07
AU5754894A (en) 1994-09-15
EP0615802A3 (fr) 1997-11-12
NO940709L (no) 1994-09-06

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