EP0156764A1 - Electromagnetical continuous casting mould - Google Patents
Electromagnetical continuous casting mould Download PDFInfo
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- EP0156764A1 EP0156764A1 EP85810058A EP85810058A EP0156764A1 EP 0156764 A1 EP0156764 A1 EP 0156764A1 EP 85810058 A EP85810058 A EP 85810058A EP 85810058 A EP85810058 A EP 85810058A EP 0156764 A1 EP0156764 A1 EP 0156764A1
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- European Patent Office
- Prior art keywords
- pressure chamber
- main piston
- piston
- cylinder
- mold according
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 11
- 230000006698 induction Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/049—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting
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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
- B22D11/01—Continuous casting of metals, i.e. casting in indefinite lengths without moulds, e.g. on molten surfaces
- B22D11/015—Continuous casting of metals, i.e. casting in indefinite lengths without moulds, e.g. on molten surfaces using magnetic field for conformation, i.e. the metal is not in contact with a mould
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls
Definitions
- the invention relates to an electromagnetic continuous casting mold with side and end walls, which each consist of an inductor part with an induction loop and a screen, at least one end wall being slidably attached to the side walls via releasable locking bolts, while the respective inductor parts and the screens are connected via a clamping device with in Cylinder chambers seated pistons are connected to closed loops.
- molten metal is poured at a predetermined speed onto a start-up base attached within a loop-shaped electrical inductor.
- the approach floor is lowered at a speed adapted to the casting rate.
- High frequency alternating current in the inductor generates an electromagnetic force field which confines the molten metal introduced inside the inductor horizontally in a form which is substantially determined by the inner contours of the I nduktorschlaufe.
- a coolant for example water
- Such systems usually have a tapering electromagnetic shield. This is attached coaxially within the inductor and consists of a Metal (e.g. stainless steel). Due to its shape, this screen serves to weaken the magnetic field above the inductor, so that the electromagnetic forces constricting the cross section of the bar head are reduced.
- a further explanation of the advantages of such a screen can be found in US Pat. No. 3,605,865.
- Electromagnetic continuous casting molds are complex and costly, primarily due to the narrow dimensional tolerances that must be observed during the production of the molds.
- the numerous different cast ingot formats also entail the uneconomical need to keep a correspondingly large number of molds in stock.
- a conventional continuous casting mold with adjustable mold end walls is known from DE-AS 1 059 626.
- task and construction of a conventional continuous casting mold are fundamentally different from those of an electromagnetic strand g iesskokille; thus there is no possibility of transmission.
- the mold in the conventional case is used to dissipate the heat of fusion through contact with the melt.
- it forms the vessel wall for the melt and must therefore be leakproof over its entire circumference.
- the electromagnetic mold does not come into contact with the melt. It is used to conduct current in a defined manner and also contains devices for additionally influencing the magnetic field.
- the contact pressure for the contact elements depends solely on the rotation of the camshaft, which, if it is designed to run very smoothly, also runs the risk of changing during the operation of the mold, so that the contact pressure decreases. Furthermore, the contact elements can only be moved out of the clamping device as far as the height of the cam mountain.
- the inventor set himself the goal of clamping to create direction for the connection between the front wall and side walls, which does not have these disadvantages, and in particular can be brought into effect very quickly. Furthermore, the possible extension range of the plungers and their contact pressure should be designed to be variable.
- the cylinder spaces are connected via branch lines or channels to a pressure chamber in a cylinder bore and are filled with a pressure medium which can be pressurized by a main piston.
- the main piston should preferably be covered by the pressure chamber with a bellows, on which sits a plate on which there is a disk which is eccentrically pierced by an axle shaft. If this disc is moved in a certain direction by means of a lever, the disc presses due to the eccentrically arranged axle shaft on the plate, this on the bellows and thus also on the main piston.
- the bellows essentially serves as a buffer to absorb excessive pressure in the pressure chamber or, for example, to compensate for vibrations within the mold. In this way, the entire clamping device can be brought into the desired contact with the inductor parts or the screen with a single handle. The same goes for that Relax the clamping device.
- a control piston delimits the pressure chamber in the cylinder bore, the position of which can be changed using an adjusting screw.
- All pistons are in sealing contact with their respective cylinder chambers via ring seals.
- This clamping device is extremely simple and therefore very little prone to failure.
- Any pressure medium can be located in the pressure chamber or the channels or branch lines, a pressure fluid is preferred.
- the mold 10 shown in FIGS. 1 to 3 has a pair of opposite side walls 12 and a pair of movable end walls 14, which together form a mold opening 16.
- the end walls 14 can slide with a sliding shoe 18 on the surface 19 of the side walls 12.
- a spring-loaded locking pin 20 is attached to each slide shoe 18 of the end walls 14 and fits into blind holes 22, which are arranged at a predetermined distance in the surface 19 of the end walls 12; the end walls 14 can thus be attached at the desired locations along the side walls 12.
- FIG. 3 has a side wall 12 of the mold 10 has a K okillenrahmen 24 on the screws 28 with an insulating body is attached 26th An induction loop 30 held by screws 34, which cools a cooling channel 32, bears against this.
- An electromagnetic screen 36 is attached to the mold frame 24 with further screws 37, which leaves a gap 38 to the induction loop 30, from which a cooling jet from a water chamber 40 via a channel 42 onto the surface of a cast ingot - shown only in broken lines in FIG. 1 43 hits.
- the end walls 14 have a structure similar to that of the side walls 12.
- a clamping device 44 is attached to both the induction loop 30 of the side wall 12 with an induction loop (not shown) on the end wall 14 and the screen 36 on the side wall 12 to be electrically connected to a screen on the front wall.
- this clamping device 44 has a cylinder bore 46 which is bridged by an axle shaft 48 which passes through a disk 50 eccentrically, the disk 50 being able to be moved around the shaft 48 in the direction x by means of a lever 52.
- the eccentrically mounted disc 50 presses on a plate 54 in the cylinder bore 46, which presses a main piston 58 via a bellows 56.
- a control piston 60 there is a pressure chamber 62 for receiving compressed air or a pressure fluid.
- the pressure chamber and thus the pressure in the pressure chamber can be changed via the control piston 60. This is done by means of an adjusting screw 64, which passes through the clamping device 44 or the cylinder bore 46 from below with a thread 66 and engages the control piston 60 in the opposite direction from the pressure chamber 62.
- Channels 68 lead out of the pressure chamber 62 on both sides and are connected to two cylinder spaces 72 and 73 via branch lines 70. Pistons 74 and 76 with end plates 75 are arranged in each of these. The upper pistons 74 engage the screen 36 of the side wall 12 in the position of use, while the lower pistons 76 serve to connect to the induction loop 30. To compensate for differences between the side and end walls 12, 14, contact elements (not shown) can be used.
- All pistons 58, 60, 74, 76 are provided with ring seals 78.
- Lines 80 are used to guide the cooling liquid in the cooling channels 32 of the induction loop 30.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Rehabilitation Tools (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Eine elektormagnetische Stranggiesskokille besteht aus Seiten- und Stirnwänden (12, 14), welche jeweils einen Induktorteil mit Induktionsschleife (20) und einen Schirm (36) aufweisen. Eine Stirnwand (14) ist über lösbare Sperrbolzen (20) verschiebbar an den Seitenwänden (12) befestigt, während die jeweiligen Induktorteile und die Schirme (36) über eine Klemmeinrichtung (44) mit in Zylinderräumen (72) sitzenden Kolben (74, 76) zu geschlossenen Schleifen verbunden sind. Zur Verbesserung dieser Halterungen und zur schnelleren Festlegung sollen die Zylinderräume (72, 73) über Zweigleitungen (70) bzw. Kanäle (68) mit einer Druckkammer (62) in einer Zylinderbohrung (46) in Verbindung stehen und mit einem Druckmittel gefüllt sind, welches durch einen Hauptkolben (58) unter Druck setzbar ist.An elector-magnetic continuous casting mold consists of side and end walls (12, 14), each of which has an inductor part with an induction loop (20) and a screen (36). An end wall (14) is slidably attached to the side walls (12) via releasable locking bolts (20), while the respective inductor parts and the shields (36) are clamped (44) with pistons (74, 76) located in cylinder spaces (72). are connected to closed loops. To improve these brackets and to fix them more quickly, the cylinder spaces (72, 73) should be connected via branch lines (70) or channels (68) to a pressure chamber (62) in a cylinder bore (46) and should be filled with a pressure medium which can be pressurized by a main piston (58).
Description
Die Erfindung betrifft eine elektromagnetische Stranggiesskokille mit Seiten- und Stirnwänden, welche jeweils aus einem Induktorteil mit Induktionsschleife und einem Schirm bestehen, wobei zumindest eine Stirnwand über lösbare Sperrbolzen verschiebbar an den Seitenwänden befestigt ist, während die jeweiligen Induktorteile und die Schirme über eine Klemmeinrichtung mit in Zylinderräumen sitzenden Kolben zu geschlossenen Schleifen verbunden sind.The invention relates to an electromagnetic continuous casting mold with side and end walls, which each consist of an inductor part with an induction loop and a screen, at least one end wall being slidably attached to the side walls via releasable locking bolts, while the respective inductor parts and the screens are connected via a clamping device with in Cylinder chambers seated pistons are connected to closed loops.
Bei derartigen elektromagnetischen Stranggiesskokillen wird Metallschmelze mit vorgegebener Geschwindigkeit auf einen innerhalb eines schlaufenförmigen elektrischen Induktors angebrachten Anfahrboden gegossen. Der Anfahrboden wird mit einer der Giessrate angepassten Geschwindigkeit gesenkt. Hochfrequenter Wechselstrom im Induktor erzeugt ein elektromagnetisches Kraftfeld, welches die eingeführte Metallschmelze innerhalb des Induktors horizontal in einer Form begrenzt, die im wesentlichen durch die Innenkonturen der Induktorschlaufe bestimmt wird. Durch Beaufschlagung mit einem Kühlmittel, beispielsweise Wasser, erfolgt eine rasche Erstarrung der oberflächennahen Schicht des sinkenden Stranges.In such electromagnetic continuous casting molds, molten metal is poured at a predetermined speed onto a start-up base attached within a loop-shaped electrical inductor. The approach floor is lowered at a speed adapted to the casting rate. High frequency alternating current in the inductor generates an electromagnetic force field which confines the molten metal introduced inside the inductor horizontally in a form which is substantially determined by the inner contours of the I nduktorschlaufe. When a coolant, for example water, is applied, the near-surface layer of the sinking strand rapidly solidifies.
Solche Anlagen weisen meist einen sich nach unten verjüngenden elektromagnetischen Schirm auf. Dieser ist koaxial innerhalb des Induktors angebracht und besteht aus einem Metall (beispielsweise rostfreiem Stahl). Durch seine Form dient dieser Schirm der Abschwächung des Magnetfeldes oberhalb des Induktors, so dass die den Querschnitt des Barrenkopfes einengenden elektromagnetischen Kräfte geringer werden. Eine weitergehende Darlegung der Vorteile eines solchen Schirmes findet sich im U.S. Patent 3 605 865.Such systems usually have a tapering electromagnetic shield. This is attached coaxially within the inductor and consists of a Metal (e.g. stainless steel). Due to its shape, this screen serves to weaken the magnetic field above the inductor, so that the electromagnetic forces constricting the cross section of the bar head are reduced. A further explanation of the advantages of such a screen can be found in US Pat. No. 3,605,865.
Wie beim konventionellen Stranggiessen von Rechteckbarren, weisen auch mit obengenanntem Strangguss mit elektromagne- tischer Kokille gefertigte Barren üblicherweise etwas konkave Seitenflächen auf. Die Ursachen dieses störenden Effektes sind in der DE-OS 28 48 808 ausführlich beschrieben.As with the conventional continuous casting of rectangular ingots have also above of continuous casting with elec g ferrous genetic mold ingot manufactured usually somewhat concave side surfaces. The causes of this disruptive effect are described in detail in DE-OS 28 48 808.
Elektromagnetische Stranggiesskokillen sind aufwendig und kostspielig, vor allem aufgrund der engen Masstoleranzen, welche bei der Herstellung der Kokillen eingehalten werden müssen. Die zahlreichen unterschiedlichen Gussbarrenformate bringen zudem die unwirtschaftliche Notwendigkeit mit sich, eine entsprechend grosse Zahl von Kokillen auf Lager zu halten.Electromagnetic continuous casting molds are complex and costly, primarily due to the narrow dimensional tolerances that must be observed during the production of the molds. The numerous different cast ingot formats also entail the uneconomical need to keep a correspondingly large number of molds in stock.
Eine konventionelle Stranggiesskokille mit verstellbaren Kokillenstirnwänden ist aus der DE-AS 1 059 626 bekannt. Aufgabe und Aufbau einer konventionellen Stranggiesskokille unterscheiden sich jedoch grundlegend von jenen einer elektromagnetischen Stranggiesskokille; somit besteht keine Uebertragungsmöglichkeit. Die Kokille im konventionellen - Falle dient der Ableitung der Schmelzwärme durch Kontakt mit der Schmelze. Zudem bildet sie die Gefässwand für die Schmelze und muss daher in ihrem gesamten Umfang dicht sein.A conventional continuous casting mold with adjustable mold end walls is known from DE-AS 1 059 626. However, task and construction of a conventional continuous casting mold are fundamentally different from those of an electromagnetic strand g iesskokille; thus there is no possibility of transmission. The mold in the conventional case is used to dissipate the heat of fusion through contact with the melt. In addition, it forms the vessel wall for the melt and must therefore be leakproof over its entire circumference.
Die elektromagnetische Kokille jedoch kommt mit der Schmelze nicht in Berührung. Sie dient der Stromführung in definierter Art und Weise und enthält überdies Vorrichtungen zur zusätzlichen Beeinflussung des Magnetfeldes.However, the electromagnetic mold does not come into contact with the melt. It is used to conduct current in a defined manner and also contains devices for additionally influencing the magnetic field.
Für eine elektromagnetische Stranggiesskokille wurden deshalb besondere Sperrelemente für die wahlweise Positionierung und Befestigung der Stirnwände an den Seitenwänden entwickelt, welche ermöglichen, das Ausmass der Kokillenöffnung zu verändern. Eine an den Stirnwänden angeordnete spezielle Klemmvorrichtung verbindet die jeweiligen Induktorenteile und Schirme miteinander, so dass innerhalb der Kokille jeweils geschlossene Schleifen entstehen. Diese Klemmvorrichtung weist eine Nockenwelle auf, bei deren Drehung Kolben spezielle Kontaktelemente in Verbindung bringen. Diese Klemmeinrichtung hat jedoch den Nachteil, dass sie für jede der beidseitigen Verbindungen zwischen Seiten-und Stirnwand gesondert getätigt werden müss, wobei es zu ihrer gleichmässigen Einstellung genau abgestimmter, synchroner Bewegungen bedarf. Weiterhin hängt der Anpressdruck für die Kontaktelemente allein von der Drehung der Nockenwelle ab, die zudem, wenn sie sehr leichtgängig ausgebildet ist, Gefahr läuft, während des Betriebs der Kokille sich zu verändern, so dass der Kontaktdruck abnimmt. Weiterhin sind die Kontaktelemente nur so weit aus der Klemmeinrichtung ausfahrbar wie die Höhe des Nockenberges ist.For an electromagnetic continuous casting mold, special locking elements for the optional positioning and attachment of the end walls to the side walls were therefore developed, which make it possible to change the size of the mold opening. A special clamping device arranged on the end walls connects the respective inductor parts and shields to one another, so that closed loops are created within the mold. This clamping device has a camshaft, the rotation of which pistons connect special contact elements. However, this clamping device has the disadvantage that it has to be carried out separately for each of the two-sided connections between the side wall and the end wall, with precisely coordinated, synchronous movements being required for its uniform setting. Furthermore, the contact pressure for the contact elements depends solely on the rotation of the camshaft, which, if it is designed to run very smoothly, also runs the risk of changing during the operation of the mold, so that the contact pressure decreases. Furthermore, the contact elements can only be moved out of the clamping device as far as the height of the cam mountain.
Der Erfinder hat sich zum Ziel gesetzt, eine Klemmeinrichtung für die Verbindung zwischen Stirnwand und Seitenwänden zu schaffen, welche diese Nachteile nicht aufweist, und insbesondere sehr schnell zur Wirkung gebracht werden kann. Weiterhin soll der mögliche Ausfahrbereich der Presskolben und deren Anpressdruck variabel gestaltet sein.The inventor set himself the goal of clamping to create direction for the connection between the front wall and side walls, which does not have these disadvantages, and in particular can be brought into effect very quickly. Furthermore, the possible extension range of the plungers and their contact pressure should be designed to be variable.
Zur Lösung dieser Aufgabe führt, dass die Zylinderräume über Zweigleitungen bzw. Kanäle mit einer Druckkammer in einer Zylinderbohrung in Verbindung stehen und mit einem Druckmittel gefüllt sind, welches durch einen Hauptkolben unter Druck setzbar ist.To achieve this object, the cylinder spaces are connected via branch lines or channels to a pressure chamber in a cylinder bore and are filled with a pressure medium which can be pressurized by a main piston.
Wird nun auf den Hauptkolben ein Druck ausgeübt, so ist gewährleistet, dass sich die Kolben in den Zylinderräumen gleichmässig bewegen und auch einem gleichmässigen Anpress- druck unterliegen.Is now exerted on the main piston, a pressure, so it is ensured, the pistons in the cylinder chambers that move uniformly and also a uniform pressure npress- A subject.
Bevorzugt soll der Hauptkolben andererseits von der Druckkammer mit einem Faltenbalg belegt sein, dem eine Platte aufsitzt, auf welcher eine Scheibe steht, die exzentrisch von einer Achswelle durchbohrt ist. Wird diese Scheibe mittels eines Hebels in eine bestimmte Richtung bewegt, so drückt die Scheibe infolge der exzentrisch angeordneten Achswelle auf die Platte, diese auf den Faltenbalg und damit auch auf den Hauptkolben. Der Faltenbalg dient dabei im wesentlichen als Puffer, um einen zu hohen Druck in der Druckkammer abzufangen oder auch beispielsweise Vibrationen innerhalb der Kokille auszugleichen. Auf diese Weise kann mit einem einzigen Handgriff die gesamte Klemmeinrichtung in den gewünschten Kontakt mit den Induktorenteilen bzw. dem Schirm gebracht werden. Das gleiche gilt auch für das Entspannen der Klemmeinrichtung.On the other hand, the main piston should preferably be covered by the pressure chamber with a bellows, on which sits a plate on which there is a disk which is eccentrically pierced by an axle shaft. If this disc is moved in a certain direction by means of a lever, the disc presses due to the eccentrically arranged axle shaft on the plate, this on the bellows and thus also on the main piston. The bellows essentially serves as a buffer to absorb excessive pressure in the pressure chamber or, for example, to compensate for vibrations within the mold. In this way, the entire clamping device can be brought into the desired contact with the inductor parts or the screen with a single handle. The same goes for that Relax the clamping device.
Jenseits des Hauptkolbens begrenzt ein Regelkolben in der Zylinderbohrung den Druckraum, dessen Lage mittels einer Stellschraube verändert werden kann. Hierdurch kann einmal der Druck auf die Zylinderkolben mit den Kontaktelementen erhöht werden, zum anderen können aber auch grössere Abstandsdifferenzen zwischen der Klemmeinrichtung und den Seitenwänden ausgeglichen werden.Beyond the main piston, a control piston delimits the pressure chamber in the cylinder bore, the position of which can be changed using an adjusting screw. As a result, the pressure on the cylinder pistons with the contact elements can be increased, on the other hand, larger differences in distance between the clamping device and the side walls can also be compensated for.
Sämtliche Kolben liegen über Ringdichtungen ihren jeweiligen Zylinderräumen abdichtend an.All pistons are in sealing contact with their respective cylinder chambers via ring seals.
Diese Klemmeinrichtung ist ausserordentlich einfach ausgestaltet und deshalb sehr wenig störungsanfällig. In dem Druckraum bzw. den Kanälen oder Zweigleitungen kann sich ein beliebiges Druckmedium befinden, bevorzugt wird eine Druckflüssigkeit.This clamping device is extremely simple and therefore very little prone to failure. Any pressure medium can be located in the pressure chamber or the channels or branch lines, a pressure fluid is preferred.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnung; diese zeigt in
- Figur 1 eine Draufsicht auf eine Hälfte einer verstellbaren elektromagnetischen Kokille;
- Figur 2 einen vergrössert dargestellten Längsschnitt durch eine Klemmeinrichtung;
- Figur 3 einen Schnitt durch die Kokillenseitenwand entlang der Linie III - III nach Figur 1.
- Figure 1 is a plan view of one half of an adjustable electromagnetic mold;
- FIG. 2 shows an enlarged longitudinal section through a clamping device;
- Figure 3 shows a section through the mold side wall along the line III - III of Figure 1.
Die in den Figuren 1 bis 3 dargestellte Kokille 10 weist ein Paar gegenüberliegende Seitenwände 12 und ein Paar bewegliche Stirnwände 14 auf, welche zusammen eine Kokillen- öffnung 16 bilden. Die Stirnwände 14 können mit einem Gleitschuh 18 auf der Oberfläche 19 der Seitenwände 12 gleiten. Ein federgespannter Sperrbolzen 20 ist an jedem Gleitschuh 18 der Stirnwände 14 angebracht und passt in Sacklöcher 22, welche in vorbestimmtem Abstand in der Oberfläche 19 der Stirnwände 12 angeordnet sind; die Stirnwände 14 können damit an den gewünschten Stellen längs der Seitenwände 12 befestigt werden.The
Nach Figur 3 weist eine Seitenwand 12 der Kokille 10 einen Kokillenrahmen 24 auf, an dem mit Schrauben 28 ein Isolationskörper 26 befestigt ist. Diesem liegt eine von Schrauben 34 gehaltene Induktionsschleife 30 an, welche ein Kühlkanal 32 kühlt. Am Kokillenrahmen 24 wird mit weiteren Schrauben 37 ein elektromagnetischer Schirm 36 angebracht, welcher zur Induktionsschleife 30 einen Spalt 38 offenlässt, aus dem ein Kühlstrahl von einer Wasserkammer 40 über einen Kanal 42 auf die Oberfläche eines gegossenen -in Figur 1 nur gestrichelt dargestellten -- Barrens 43 trifft. Die Stirnwände 14 weisen im übrigen einen ähnlichen Aufbau auf wie die Seitenwände 12.According to figure 3 has a
Auf der Rückseite 24 der Stirnwand 14 ist eine Klemmeinrichtung 44 angebracht, um sowohl die Induktionsschleife.30 der Seitenwand 12 mit einer -- nicht dargestellten -- Induktionsschleife an der Stirnwand 14, als auch den Schirm 36 an der Seitenwand 12 mit einem Schirm an der Stirnwand elektrisch zu verbinden.On the
Diese Klemmeinrichtung 44 weist nach Figur 2 eine Zylinderbohrung 46 auf, welche von einer Achswelle 48 überbrückt ist, die eine Scheibe 50 exzentrisch durchsetzt, wobei die Scheibe 50 um die Welle 48 mittels eines Hebels 52 in Richtung x bewegt werden kann. Dabei drückt die exzentrisch gelagerte Scheibe 50 auf eine Platte 54 in der Zylinderbohrung 46, welche über einen Faltenbalg 56 einen Hauptkolben 58 unter Druck setzt. Zwischen diesem und einem Regelkolben 60 befindet sich eine Druckkammer 62 zur Aufnahme von Druckluft oder einer Druckflüssigkeit. Ueber den Regelkolben 60 kann der Druckraum und damit der Druck in der Druckkammer verändert werden. Dies geschieht mittels einer Stellschraube 64, welche die Klemmeinrichtung 44 bzw. die Zylinderbohrung 46 von unten her mit einem Gewinde 66 durchsetzt und den Regelkolben 60 entgegengesetzt von der Druckkammer 62 angreift.According to FIG. 2, this
Beidseits führen aus der Druckkammer 62 Kanäle 68, welche über Zweigleitungen 70 mit jeweils zwei Zylinderräumen 72 und 73 verbunden sind. In diesen sind jeweils Kolben 74 bzw. 76 mit Stirnplatten 75 angeordnet. Die oberen Kolben 74 greifen in Gebrauchslage den Schirm 36 der Seitenwand 12 an, während die unteren Kolben 76 der Verbindung mit der Induktionsschleife 30 dienen. Zum Ausgleich von Differenzen zwischen Seiten- und Stirnwand 12,14 können -- nicht gezeigte -- Kontaktelemente eingesetzt werden.
Sämtliche Kolben 58,60,74,76 sind mit Ringdichtungen 78 versehen.All
Leitungen 80 dienen dem Führen der Kühlflüssigkeit in den Kühlkanälen 32 der Induktionsschleife 30.
Claims (5)
dadurch gekennzeichnet, dass die Zylinderräume (72,73) über Zweigleitungen (70) bzw. Kanäle (68) mit einer Druckkammer (62) in einer Zylinderbohrung (46) in Verbindung stehen und mit einem Druckmittel gefüllt sind, welches durch einen Hauptkolben (58) unter Druck setzbar ist.1. Electromagnetic continuous casting mold with side and end walls, which each consist of an inductor part with an induction loop and a screen, at least one end wall being slidably attached to the side walls via releasable locking bolts, while the respective inductor parts and the screens are connected via a clamping device with seats in cylinder spaces Pistons are connected in closed loops,
characterized in that the cylinder spaces (72, 73) are connected via branch lines (70) or channels (68) to a pressure chamber (62) in a cylinder bore (46) and are filled with a pressure medium which is supplied by a main piston (58 ) can be put under pressure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH84884 | 1984-02-22 | ||
| CH848/84 | 1984-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0156764A1 true EP0156764A1 (en) | 1985-10-02 |
| EP0156764B1 EP0156764B1 (en) | 1987-09-09 |
Family
ID=4196618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85810058A Expired EP0156764B1 (en) | 1984-02-22 | 1985-02-15 | Electromagnetical continuous casting mould |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4892134A (en) |
| EP (1) | EP0156764B1 (en) |
| JP (1) | JPS60203342A (en) |
| AU (1) | AU573691B2 (en) |
| CA (1) | CA1231511A (en) |
| DE (2) | DE3406699C1 (en) |
| IS (1) | IS1350B6 (en) |
| NO (1) | NO162750C (en) |
| ZA (1) | ZA85894B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0679460A1 (en) * | 1994-04-06 | 1995-11-02 | Alusuisse-Lonza Services AG | Adjustable electromagnetic continuous casting mould |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994004582A1 (en) * | 1992-08-21 | 1994-03-03 | S/S Performance Products, Inc. | Novel epoxy resin cure catalyst |
| NO302803B1 (en) * | 1996-03-20 | 1998-04-27 | Norsk Hydro As | Equipment for use in continuous casting of metal |
| US6857464B2 (en) * | 2002-09-19 | 2005-02-22 | Hatch Associates Ltd. | Adjustable casting mold |
| US7007739B2 (en) * | 2004-02-28 | 2006-03-07 | Wagstaff, Inc. | Direct chilled metal casting system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1059626B (en) * | 1957-04-06 | 1959-06-18 | Aluminium Walzwerke Singen | Continuous casting mold |
| CH470815A (en) * | 1966-10-27 | 1969-03-31 | Ajax Magnethermic Corp | Induction heating device |
| US3605865A (en) * | 1969-12-23 | 1971-09-20 | Getselev Zinovy N | Continuous casting apparatus with electromagnetic screen |
| DE2848808A1 (en) * | 1977-12-05 | 1979-06-07 | Alusuisse | INDUCTOR FOR AN ELECTROMAGNETIC CONTINUOUS CHOCOLATE |
| EP0109357A1 (en) * | 1982-11-12 | 1984-05-23 | Schweizerische Aluminium Ag | Electromagnetic continuous casting mould |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2009515A (en) * | 1933-09-16 | 1935-07-30 | Hydromatic Corp | Valve system |
| US2399505A (en) * | 1943-08-12 | 1946-04-30 | Lee A Phillips | Throttle and pressure control |
| US2414675A (en) * | 1945-02-14 | 1947-01-21 | Stelzer William | Power brake |
| FR1469166A (en) * | 1965-12-29 | 1967-02-10 | Creusot Forges Ateliers | Mold setting device for continuous metal casting |
| US4093184A (en) * | 1977-03-07 | 1978-06-06 | Harnischfeger Corporation | Hydraulic brake system for crane hoist drum |
-
1984
- 1984-02-24 DE DE3406699A patent/DE3406699C1/en not_active Expired
-
1985
- 1985-02-01 IS IS2976A patent/IS1350B6/en unknown
- 1985-02-06 ZA ZA85894A patent/ZA85894B/en unknown
- 1985-02-14 US US06/701,962 patent/US4892134A/en not_active Expired - Lifetime
- 1985-02-14 AU AU38715/85A patent/AU573691B2/en not_active Ceased
- 1985-02-15 EP EP85810058A patent/EP0156764B1/en not_active Expired
- 1985-02-15 DE DE8585810058T patent/DE3560551D1/en not_active Expired
- 1985-02-20 NO NO850662A patent/NO162750C/en unknown
- 1985-02-21 CA CA000474836A patent/CA1231511A/en not_active Expired
- 1985-02-22 JP JP60034269A patent/JPS60203342A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1059626B (en) * | 1957-04-06 | 1959-06-18 | Aluminium Walzwerke Singen | Continuous casting mold |
| CH470815A (en) * | 1966-10-27 | 1969-03-31 | Ajax Magnethermic Corp | Induction heating device |
| US3605865A (en) * | 1969-12-23 | 1971-09-20 | Getselev Zinovy N | Continuous casting apparatus with electromagnetic screen |
| DE2848808A1 (en) * | 1977-12-05 | 1979-06-07 | Alusuisse | INDUCTOR FOR AN ELECTROMAGNETIC CONTINUOUS CHOCOLATE |
| EP0109357A1 (en) * | 1982-11-12 | 1984-05-23 | Schweizerische Aluminium Ag | Electromagnetic continuous casting mould |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, Band 4, Nr. 183, 17. Dezember 1980, Seite 62 M 47 (M-47) (665); & JP-A-55-130362 (SUMITOMO KEIKINZOKU KOGYO) 09-10-1980 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0679460A1 (en) * | 1994-04-06 | 1995-11-02 | Alusuisse-Lonza Services AG | Adjustable electromagnetic continuous casting mould |
| CH688991A5 (en) * | 1994-04-06 | 1998-07-15 | Alusuisse Lonza Services Ag | Individual electromagnetic continuous casting. |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1231511A (en) | 1988-01-19 |
| JPS60203342A (en) | 1985-10-14 |
| DE3560551D1 (en) | 1987-10-15 |
| NO850662L (en) | 1985-08-23 |
| NO162750C (en) | 1990-02-14 |
| EP0156764B1 (en) | 1987-09-09 |
| IS1350B6 (en) | 1989-03-20 |
| AU3871585A (en) | 1985-08-29 |
| US4892134A (en) | 1990-01-09 |
| ZA85894B (en) | 1985-09-25 |
| NO162750B (en) | 1989-11-06 |
| DE3406699C1 (en) | 1985-01-10 |
| IS2976A7 (en) | 1985-08-23 |
| AU573691B2 (en) | 1988-06-16 |
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