EP2083957A1 - Extrusion die - Google Patents

Extrusion die

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Publication number
EP2083957A1
EP2083957A1 EP07817718A EP07817718A EP2083957A1 EP 2083957 A1 EP2083957 A1 EP 2083957A1 EP 07817718 A EP07817718 A EP 07817718A EP 07817718 A EP07817718 A EP 07817718A EP 2083957 A1 EP2083957 A1 EP 2083957A1
Authority
EP
European Patent Office
Prior art keywords
fastening
cooling channels
threads
mold
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07817718A
Other languages
German (de)
French (fr)
Other versions
EP2083957B1 (en
Inventor
Markus Reifferscheid
Albrecht Girgensohn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
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SMS Siemag AG
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Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2083957A1 publication Critical patent/EP2083957A1/en
Application granted granted Critical
Publication of EP2083957B1 publication Critical patent/EP2083957B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • 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
    • B22D11/059—Mould materials or platings

Definitions

  • the invention relates to a continuous casting mold with the casting cross-section surrounding Kokillenplatten in which run cooling channels, wherein the mold plates are connected by means of screw elements with a water tank and the screw elements of fastening bolts with a threaded shaft, which can be screwed into mounting thread in the mold plate.
  • molds for the continuous casting of steel consist of several mold plates, which form a cavity when combined. In this cavity, the liquid steel is filled, partially solidified and is discharged downward. Depending on the shape of this cavity, a distinction is made between slab, Dünnbrammen-, Vorblock- or beam blank formats.
  • the mold plates which are almost without exception made of copper alloys, have very high thermal and mechanical loads. So that the mold retains its shape despite the forces acting during casting, the mold plates are attached to the back of a water tank. In particular, this should prevent the formation of larger gaps in the contact area between the individual mold plates of a mold. Also, the cooling water of the mold must not escape uncontrollably and come into contact with the liquid steel.
  • the mounting threads or tapped holes In order to ensure sufficient strength against the tearing of the fasteners from the copper, the mounting threads or tapped holes must be sufficiently deep and have a sufficiently large diameter.
  • the back of the mold plates is also required to dissipate the extremely high amounts of heat released by the solidification and cooling of steel.
  • the fastening threads may be behind the cooling level.
  • the production of drilled chill plates in comparison with mold plates with milled cooling channels is relatively expensive.
  • the depth of milled cooling channels and thus the distance between the cooling channels and the Kokillenvorderseite be changed over the length and width of Kokillenplatte and so adapted to the thermal stresses occurring.
  • a mold arrangement is known in which coolant holes are provided in the copper plate parallel to each other.
  • the fastening bolts are each arranged with their central longitudinal axes extending centrally between two adjacent coolant holes.
  • the distance between the respective outer walls of the adjacent cooling medium bores is greater than the outer diameter of the fastening bolts or the threaded bore, into which the shank of the fastening bolt is screwed.
  • the supporting threaded portion is in this arrangement in the wall between the adjacent coolant holes.
  • fastening bores and cooling channels are located next to one another in the prior art.
  • cooling holes In the direction of the heat flow in front of the threaded holes still cooling holes can be located or the cooling channels do not extend perpendicular to the height of the mold plate, but at least the next channels next to the rows of mounting holes drive around the fortifications with the smallest possible distance (slalom slot).
  • the object of the invention is to arrange or form the mounting holes and the milled cooling channels on the backs of mold plates so that a nearly uniform cooling is achieved.
  • This object is achieved according to the invention with a continuous casting mold with the casting cross-section surrounding Kokillenplatten in which run cooling channels, wherein the mold plates are connected by means of screw elements with a water tank and the screw elements of fastening bolts with a threaded shaft which can be screwed into mounting thread in the mold plate, wherein the Fixing thread with its central longitudinal axes are each arranged between two adjacent coolant channels extending, the diameter of each threaded hole is greater than the distance between two adjacent cooling channels (4) and the holes for the fastening threads at a distance from the sole of the cooling channels, limiting the depth of engagement of the fastening bolts, end up.
  • the holes for the fastening threads are no longer separate next to the cooling channels, but overlap partially with the cooling channels or are cut by these.
  • the fastening bolts protrude a little way into the cooling channels when they have been screwed into the fastening threads. In the area of the cooling channels, however, the fastening bolts are not in engagement with the fastening thread because it is missing there.
  • the fastening thread is also in the mutually remote wall regions of the adjacent cooling channels, so that in this way the tear resistance is greater in comparison to the centrally arranged fastening threads in cooling holes.
  • the load-bearing surface x of the thread depth is defined as the bearing surface.
  • the bearing circumference is the circumference of the thread minus the circular arcs cut out of the cooling channels.
  • cooling channels are deeper than the holes for the fastening threads.
  • the channel cross-section above / below and laterally of the fastening thread can be reduced by filling pieces. In the area of the fasteners then remain islands for receiving the threaded inserts.
  • Fig. 1 shows schematically the arrangement or design of fastening threads in the back of a mold plate
  • Fig. 2 sections A-A and B-B of Figure 1.
  • the mold plate is designated 1.
  • the fastening threads 2 are covered by the cooling channels 4, so surrounded slalomartig.
  • fastening threads 5 which are located outside the cooling channels and thus in the solid material, are shown on the far right in FIG.
  • fastening threads 5 which are located outside the cooling channels and thus in the solid material.
  • the section B-B in Fig. 2 shows a cross section through the solid material of the mold, where the bore 3 is not cut from the cooling channel 4. In the solid material, the remaining there fastening thread 2 can be seen.
  • the fastening threads 2 and the holes for these threads are of lesser depth than the depth of the cooling channels 4, to allow a coolant flow through the cooling channel even with a screwed fastening bolts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Continuous casting mold comprises mold plates (1) containing cooling channels (4) and connected to a water tank using screw elements. The screw elements are fixing bolts with a threaded shaft which can be screwed into the fixing threads (2, 3) in the mold plates. The fixing threads run with their middle longitudinal axes between two neighboring cooling channels. The diameter of each threaded bore is larger than the distance between two neighboring cooling channels. The bores for the fixing threads terminate at a distance from the bottom of the cooling channels.

Description

Stranggießkokille continuous casting
Die Erfindung betrifft eine Stranggießkokille mit den Gießquerschnitt umschließenden Kokillenplatten, in denen Kühlkanäle verlaufen, wobei die Kokillenplatten mittels Schraubenelementen mit einem Wasserkasten verbunden sind und die Schraubenelemente aus Befestigungsbolzen mit einem Gewindeschaft bestehen, der in Befestigungsgewinde in der Kokillenplatte einschraubbar ist.The invention relates to a continuous casting mold with the casting cross-section surrounding Kokillenplatten in which run cooling channels, wherein the mold plates are connected by means of screw elements with a water tank and the screw elements of fastening bolts with a threaded shaft, which can be screwed into mounting thread in the mold plate.
Mit Ausnahme von Rohrkokillen für Knüppelformate bestehen Kokillen für das Stranggießen von Stahl aus mehreren Kokilienplatten, die zusammengesetzt einen Hohlraum bilden. In diesen Hohlraum wird der flüssige Stahl eingefüllt, erstarrt teilweise und wird nach unten abgeführt. Je nach der Form dieses Hohlraums unterscheidet man zwischen Brammen-, Dünnbrammen-, Vorblock- oder Beam Blank-Formaten.With the exception of tube molds for billet molds, molds for the continuous casting of steel consist of several mold plates, which form a cavity when combined. In this cavity, the liquid steel is filled, partially solidified and is discharged downward. Depending on the shape of this cavity, a distinction is made between slab, Dünnbrammen-, Vorblock- or beam blank formats.
Während des Gießbetriebes wirken auf die Kokillenplatten, die fast ausnahmslos aus Kupferlegierungen gefertigt sind, sehr hohe thermische und mechanische Belastungen. Damit nun die Kokille trotz der wirkenden Kräfte während des Gießens ihre Form behält, werden die Kokillenplatten rückseitig an einem Wasserkasten befestigt. Insbesondere soll dadurch verhindert werden, dass im Kontaktbereich zwischen den einzelnen Kokillenplatten einer Kokille größere Spalte entstehen. Auch das Kühlwasser der Kokille darf nicht unkontrolliert austreten und mit dem flüssigen Stahl in Kontakt kommen.During the casting operation, the mold plates, which are almost without exception made of copper alloys, have very high thermal and mechanical loads. So that the mold retains its shape despite the forces acting during casting, the mold plates are attached to the back of a water tank. In particular, this should prevent the formation of larger gaps in the contact area between the individual mold plates of a mold. Also, the cooling water of the mold must not escape uncontrollably and come into contact with the liquid steel.
Je nach Bauform und Abmaßen der Kokillen wird die Befestigung der Kokillenplatten auf den rückwärtigen Wasserkästen unterschiedlich realisiert.Depending on the design and dimensions of the molds, the attachment of the mold plates on the rear water tanks is realized differently.
Beispiele für die Ausbildung der Kokillenplatten sind in der EP 1 398 099 B1 und der WO 02/07915 offenbart. Üblicherweise befinden sich auf der Rückseite der Kokillenplatten Bohrungen mit Gewinden, in die Bolzen oder Schrauben eingeschraubt werden.Examples of the formation of the mold plates are disclosed in EP 1 398 099 B1 and WO 02/07915. Usually located on the back of the mold plates holes with threads into which bolts or screws are screwed.
Um eine ausreichende Festigkeit gegen das Ausreißen der Befestigungselemente aus dem Kupfer sicherstellen zu können, müssen die Befestigungsgewinde oder Gewindebohrungen ausreichend tief sein und einen genügend großen Durchmesser haben.In order to ensure sufficient strength against the tearing of the fasteners from the copper, the mounting threads or tapped holes must be sufficiently deep and have a sufficiently large diameter.
Abmessungen, Anzahl und Abstand der Gewindebohrungen hängen u. a. von der Festigkeit des Kokillenmaterials, den Abmessungen und Form der Kokillenplatte und den Belastungen während des Betriebs ab.Dimensions, number and distance of the threaded holes hang u. a. on the strength of the mold material, the dimensions and shape of the mold plate and the stresses during operation.
Neben der Befestigung wird die Rückseite der Kokillenplatten auch zur Abfuhr der extrem hohen Wärmemengen, die bei der Erstarrung und Abkühlung von Stahl freigesetzt werden, benötigt.In addition to the attachment, the back of the mold plates is also required to dissipate the extremely high amounts of heat released by the solidification and cooling of steel.
Dementsprechend befinden sich auf der Kokillenrückseite Kühlkanäle oder Kühlbohrungen, durch welche das Kühlwasser mit hohem Druck und großer Geschwindigkeit gepumpt wird.Accordingly, located on the mold back cooling channels or cooling holes through which the cooling water is pumped at high pressure and high speed.
Aus Gründen der Produktqualität und wegen der Lebensdauer der eingesetzten Kokillenplatten ist es notwendig, eine in der Fläche möglichst gleichmäßige Kühlung zu gewährleisten, damit nicht einzelne Bereiche der Kokillenvorderseite eine erheblich höhere Temperatur aufweisen als andere Bereiche direkt nebenan.For reasons of product quality and because of the lifetime of the mold plates used, it is necessary to ensure a uniform in the area as possible cooling, so that not individual areas of the mold front side have a significantly higher temperature than other areas directly next door.
Wird das Kühlwasser in der Kokillenplatte durch Kühlbohrungen geleitet, können sich die Befestigungsgewinde hinter der Kühlebene befinden. Allerdings ist die Herstellung von gebohrten Kokillenplatten im Vergleich mit Kokillenplatten mit gefrästen Kühlkanälen relativ aufwendig. Außerdem kann die Tiefe von gefrästen Kühlkanälen und damit der Abstand zwischen den Kühlkanälen und der Kokillenvorderseite über die Länge und Breite der Kokillenplatte verändert und so den auftretenden thermischen Belastungen angepaßt werden.If the cooling water in the mold plate passes through cooling holes, the fastening threads may be behind the cooling level. However, the production of drilled chill plates in comparison with mold plates with milled cooling channels is relatively expensive. In addition, the depth of milled cooling channels and thus the distance between the cooling channels and the Kokillenvorderseite be changed over the length and width of Kokillenplatte and so adapted to the thermal stresses occurring.
Aus der oben genannten WO 02/07915 ist eine Kokillenanordnung bekannt, bei der in der Kupferplatte parallel untereinander Kühlmittelbohrungen vorgesehen sind. Die Befestigungsbolzen sind mit ihren Mittellängsachsen jeweils mittig zwischen zwei benachbarten Kühlmittelbohrungen verlaufend angeordnet. Bei dieser Ausbildung ist der Abstand der jeweils außen liegenden Wandungen der benachbarten Kühimittelbohrungen voneinander größer als der Außendurchmesser der Befestigungsbolzen bzw. der Gewindebohrung, in die der Schaft des Befestigungsbolzens eingeschraubt ist.From the above-mentioned WO 02/07915 a mold arrangement is known in which coolant holes are provided in the copper plate parallel to each other. The fastening bolts are each arranged with their central longitudinal axes extending centrally between two adjacent coolant holes. In this embodiment, the distance between the respective outer walls of the adjacent cooling medium bores is greater than the outer diameter of the fastening bolts or the threaded bore, into which the shank of the fastening bolt is screwed.
Der tragende Gewindeabschnitt befindet sich bei dieser Anordnung in der Wandung zwischen den benachbarten Kühlmittelbohrungen.The supporting threaded portion is in this arrangement in the wall between the adjacent coolant holes.
Bei Kokillen mit gefrästen Kühlkanälen befinden sich im Stand der Technik Befestigungsbohrungen und Kühlkanäle nebeneinander.In the case of molds with milled cooling channels, fastening bores and cooling channels are located next to one another in the prior art.
Um dennoch eine möglichst gleichmäßige Kühlung der Kokillenplatte zu erreichen, gibt es verschiedene Möglichkeiten.Nevertheless, to achieve the most uniform possible cooling of the mold plate, there are various possibilities.
In Richtung des Wärmestroms vor den Gewindebohrungen können sich noch Kühlbohrungen befinden oder die Kühlkanäle verlaufen nicht senkrecht über die Höhe der Kokillenplatte, sondern zumindest die nächsten Kanäle neben den Reihen der Befestigungsbohrungen umfahren die Befestigungen mit einem möglichst geringen Abstand (Slalom Slot).In the direction of the heat flow in front of the threaded holes still cooling holes can be located or the cooling channels do not extend perpendicular to the height of the mold plate, but at least the next channels next to the rows of mounting holes drive around the fortifications with the smallest possible distance (slalom slot).
Aufgabe der Erfindung ist es, die Befestigungsbohrungen und die gefrästen Kühlkanäle auf den Rückseiten von Kokillenplatten so anzuordnen bzw. auszubilden, dass eine nahezu gleichmäßige Kühlung erreicht wird.The object of the invention is to arrange or form the mounting holes and the milled cooling channels on the backs of mold plates so that a nearly uniform cooling is achieved.
Gelöst wird diese Aufgabe erfindungsgemäß mit einer Stranggießkokille mit den Gießquerschnitt umschließenden Kokillenplatten, in denen Kühlkanäle verlaufen, wobei die Kokillenplatten mittels Schraubenelementen mit einem Wasserkasten verbunden sind und die Schraubenelemente aus Befestigungsbolzen mit einem Gewindeschaft bestehen, der in Befestigungsgewinde in der Kokillenplatte einschraubbar ist, wobei die Befestigungsgewinde mit ihren Mittellängsachsen jeweils zwischen zwei benachbarten Kühlmittelkanälen verlaufend angeordnet sind, der Durchmesser jeder Gewindebohrung größer ist als der Abstand zwischen zwei nebeneinander liegenden Kühlkanälen (4) und die Bohrungen für die Befestigungsgewinde im Abstand von der Sohle der Kühlkanäle, die Einschraubtiefe der Befestigungsbolzen begrenzend, enden.This object is achieved according to the invention with a continuous casting mold with the casting cross-section surrounding Kokillenplatten in which run cooling channels, wherein the mold plates are connected by means of screw elements with a water tank and the screw elements of fastening bolts with a threaded shaft which can be screwed into mounting thread in the mold plate, wherein the Fixing thread with its central longitudinal axes are each arranged between two adjacent coolant channels extending, the diameter of each threaded hole is greater than the distance between two adjacent cooling channels (4) and the holes for the fastening threads at a distance from the sole of the cooling channels, limiting the depth of engagement of the fastening bolts, end up.
Somit befinden sich die Bohrungen für die Befestigungsgewinde nicht mehr separat neben den Kühlkanälen, sondern überlappen sich partiell mit den Kühlkanälen bzw. werden von diesen durchschnitten. Die Befestigungsbolzen ragen, wenn sie in die Befestigungsgewinde eingeschraubt worden sind, ein Stück weit in die Kühlkanäle hinein. Im Bereich der Kühlkanäle stehen die Befestigungsbolzen allerdings nicht mit dem Befestigungsgewinde in Eingriff, weil dieses dort fehlt. Andererseits befindet sich das Befestigungsgewinde auch in den voneinander abgewandten Wandbereichen der benachbarten Kühlkanäle, so dass hierdurch die Ausreißfestigkeit im Vergleich zu den mittig angeordneten Befestigungsgewinden bei Kühlbohrungen größer ist.Thus, the holes for the fastening threads are no longer separate next to the cooling channels, but overlap partially with the cooling channels or are cut by these. The fastening bolts protrude a little way into the cooling channels when they have been screwed into the fastening threads. In the area of the cooling channels, however, the fastening bolts are not in engagement with the fastening thread because it is missing there. On the other hand, the fastening thread is also in the mutually remote wall regions of the adjacent cooling channels, so that in this way the tear resistance is greater in comparison to the centrally arranged fastening threads in cooling holes.
Es wurden Versuche durchgeführt, die gezeigt haben, dass die Herstellung dieser Befestigungsgewinde problemlos möglich ist und sich nicht von der Herstellung von Befestigungsgewinden in Vollmaterial unterscheidet. Außerdem wurde untersucht, ob die Befestigungsgewinde eine ausreichende Ausreißfestigkeit besitzen. Die durchgeführten Versuche zeigen, dass die Kanalgewinde bei Belastung eine vergleichsbare Ausreißfestigkeit aufweisen wie Gewinde in Vollmaterial.Experiments have been carried out which have shown that the production of these fastening threads is easily possible and does not differ from the production of fastening threads in solid material. In addition, it was examined whether the fastening threads have sufficient tear resistance. The tests carried out show that the channel threads under load have a comparable tear propagation resistance as threads in solid material.
Allerdings muß ihr Durchmesser im Vergleich mit Vollgewinden etwas größer sein, damit sie die gleiche tragende Fläche besitzen. Als tragende Fläche wird der tragende Umfang x der Gewindetiefe definiert. Der tragende Umfang ist der Umfang des Gewindes abzüglich der Kreisbögen, die von den Kühlkanälen ausgeschnitten sind.However, their diameter must be slightly larger in comparison with full threads, so they have the same bearing surface. The load-bearing surface x of the thread depth is defined as the bearing surface. The bearing circumference is the circumference of the thread minus the circular arcs cut out of the cooling channels.
Wesentlich ist, dass die Kühlkanäle tiefer sind als die Bohrungen für die Befestigungsgewinde.It is essential that the cooling channels are deeper than the holes for the fastening threads.
Damit wird erreicht, dass sich Kühlwasser unterhalb der Gewinde (zwischen Kokillenheißseite und dem Grund der Befestigungsgewinde) befindet und damit auch hier eine Kühlwirkung ergibt.This ensures that cooling water is below the thread (between Kokillenheißseite and the bottom of the mounting thread) and thus gives a cooling effect here.
Zur Verqleichmäßigung der Strömung in den Kanälen bzw. zur Erzielung von höheren Strömungsgeschwindigkeiten kann der Kanalquerschnitt oberhalb / unterhalb und seitlich der Befestigungsgewinde durch Füllstücke reduziert werden. Im Bereich der Befestigungen bleiben dann Inseln zur Aufnahme der Gewindeeinsätze stehen.To equalize the flow in the channels or to achieve higher flow velocities, the channel cross-section above / below and laterally of the fastening thread can be reduced by filling pieces. In the area of the fasteners then remain islands for receiving the threaded inserts.
Die Erfindung soll nachfolgend unter Bezug auf die Zeichnungen erläutert werden. Dabei zeigt: Fig. 1 schematisch die Anordung bzw. Ausbildung von Befestigungsgewinden in der Rückseite einer Kokillenplatte undThe invention will be explained below with reference to the drawings. Showing: Fig. 1 shows schematically the arrangement or design of fastening threads in the back of a mold plate and
Fig. 2 Schnitte A-A und B-B aus Figur 1.Fig. 2 sections A-A and B-B of Figure 1.
In der Figur 1 ist die Kokillenplatte mit 1 bezeichnet.In the figure 1, the mold plate is designated 1.
Linksseitig ist eine bekannte Anordnung der Befestigungsgewinde dargestellt, wobei diese vorstehend mit dem Begriff "Slalom Slots" bereits erwähnt worden ist.On the left side, a known arrangement of the fastening thread is shown, which has already been mentioned above with the term "Slalom Slots".
Hierbei sind die Befestigungsgewinde 2 von den Kühlkanälen 4 umfasst, also slalomartig umgeben.Here, the fastening threads 2 are covered by the cooling channels 4, so surrounded slalomartig.
Im Gegensatz dazu ist bei der mittleren Darstellung die Anordnung der BefestigungsgewindeIn contrast, in the middle illustration, the arrangement of the fastening threads
3 so, dass diese von den Kühlkanälen 4 geschnitten werden bzw. mit diesen teilweise überlappen.3 so that they are cut by the cooling channels 4 and partially overlap with these.
In dem Bereich, wo die Kühlkanäle 4 die Bohrungen 3 schneiden, befindet sich natürlich keinIn the area where the cooling channels 4 intersect the holes 3, of course, there is no
Befestigungsgewinde, wie dies auch aus der Figur 2, Schnitt A-A ersichtlich ist.Fixing thread, as can be seen also from the figure 2, section A-A.
Zum Vergleich sind in der Figur 1 ganz rechts noch Befestigungsgewinde 5 dargestellt, die sich außerhalb der Kühlkanäle und damit im Vollmaterial befinden. Zur Realisierung einer gleichen Ausreißfestigkeit bzw. gleicher tragender Flächen benötigen sie nur einen kleineren Durchmesser als die von den Kühlkanälen geschnittenen Befestigungsgewinde, weil bei letzteren im Bereich der Kühlkanäle tragendes Befestigungsgewinde fehlt.For comparison, fastening threads 5, which are located outside the cooling channels and thus in the solid material, are shown on the far right in FIG. To realize a same pull-out strength or the same bearing surfaces they only need a smaller diameter than the cut from the cooling channels fastening thread, because in the latter in the region of the cooling channels supporting fastening thread is missing.
Der Schnitt B-B in Fig. 2 zeigt einen Querschnitt durch das Vollmaterial der Kokille, wo die Bohrung 3 nicht von dem Kühlkanal 4 geschnitten wird. In dem Vollmaterial ist das dort verbliebende Befestigungsgewinde 2 zu erkennen.The section B-B in Fig. 2 shows a cross section through the solid material of the mold, where the bore 3 is not cut from the cooling channel 4. In the solid material, the remaining there fastening thread 2 can be seen.
Wie der Schnitt A-A in Fig. 2 zeigt, sind die Befestigungsgewinde 2 bzw. die Bohrungen für diese Gewinde von geringerer Tiefe als die Tiefe der Kühlkanäle 4, um einen Kühlmitteldurchfluss durch den Kühlkanal auch bei eingeschraubtem Befestigungsbolzen zu ermöglichen. As the section A-A in Fig. 2 shows, the fastening threads 2 and the holes for these threads are of lesser depth than the depth of the cooling channels 4, to allow a coolant flow through the cooling channel even with a screwed fastening bolts.

Claims

Patentansprüche: claims:
1. Stranggießkokille mit den Gießquerschnitt umschließenden Kokillenplatten (1 ), in denen Kühlkanäle (4) verlaufen, wobei die Kokillenplatten mittels Schraubenelementen mit einem Wasserkasten verbunden sind und die Schraubenelemente aus Befestigungsbolzen mit einem Gewindeschaft bestehen, der in Befestigungsgewinde (2,3) in der Kokillenplatte (1 ) einschraubbar ist, wobei die Befestigungsgewinde mit ihren Mittellängsachsen jeweils zwischen zwei benachbarten Kühlmittelkanälen verlaufend angeordnet sind, der Durchmesser jeder Gewindebohrung größer ist als der Abstand zwischen zwei nebeneinander liegenden Kühlkanälen (4) und die Bohrungen für die Befestigungsgewinde im Abstand von der Sohle der Kühlkanäle, die Einschraubtiefe der Befestigungsbolzen begrenzend, enden.1. continuous casting mold with the casting cross-section enclosing mold plates (1), in which cooling channels (4) extend, whereby the mold plates are connected by means of screw elements with a water tank and the screw elements of fastening bolts with a threaded shaft, in fastening thread (2,3) in the Chill plate (1) can be screwed, wherein the fastening threads are arranged extending with their central longitudinal axes between two adjacent coolant channels, the diameter of each threaded hole is greater than the distance between two adjacent cooling channels (4) and the holes for the fastening threads at a distance from the sole the cooling channels, limiting the depth of engagement of the fastening bolts, end.
2. Stranggießkokille nach Anspruch 1 , dadurch gekennzeichnet, dass der Durchmesser der Befestigungsgewinde (3) im Vergleich mit Befestigungsgewinden (5) in Vollmaterial größer ausgebildet ist, so dass sie die gleiche tragende Fläche besitzen.2. Continuous casting mold according to claim 1, characterized in that the diameter of the fastening thread (3) in comparison with fastening threads (5) is formed in solid material larger, so that they have the same bearing surface.
3. Stranggießkokille nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zur Verqleichmäßigung der Strömung in den Kühlkanälen bzw. zur Erzielung von höheren Strömungsgeschwindigkeiten deren Kanalquerschnitt oberhalb und/oder unterhalb sowie seitlich der Befestigungsgewinde (3) durch Füllstücke reduziert ist. 3. Continuous casting mold according to one of the preceding claims, characterized in that for the uniformity of the flow in the cooling channels or to achieve higher flow velocities whose channel cross section above and / or below and laterally of the fastening thread (3) is reduced by patches.
EP07817718A 2006-10-26 2007-10-18 Extrusion die Not-in-force EP2083957B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006051171A DE102006051171A1 (en) 2006-10-26 2006-10-26 Continuous casting mold for casting steel comprises mold plates containing cooling channels and connected to a water tank using screw elements
PCT/DE2007/001884 WO2008049398A1 (en) 2006-10-26 2007-10-18 Extrusion die

Publications (2)

Publication Number Publication Date
EP2083957A1 true EP2083957A1 (en) 2009-08-05
EP2083957B1 EP2083957B1 (en) 2011-06-29

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EP07817718A Not-in-force EP2083957B1 (en) 2006-10-26 2007-10-18 Extrusion die

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US (1) US8240357B2 (en)
EP (1) EP2083957B1 (en)
JP (1) JP5118144B2 (en)
KR (1) KR101167136B1 (en)
CN (1) CN101528386B (en)
AT (1) ATE514501T1 (en)
CA (1) CA2667402C (en)
DE (1) DE102006051171A1 (en)
ES (1) ES2366930T3 (en)
WO (1) WO2008049398A1 (en)

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DE102016124801B3 (en) * 2016-12-19 2017-12-14 Kme Germany Gmbh & Co. Kg Mold plate and mold
CN107900295A (en) * 2017-11-15 2018-04-13 安徽省恒伟铋业有限公司 A kind of refined bismuth keeps the temperature casting component

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Also Published As

Publication number Publication date
KR101167136B1 (en) 2012-07-20
US8240357B2 (en) 2012-08-14
KR20090067158A (en) 2009-06-24
ES2366930T3 (en) 2011-10-26
WO2008049398A1 (en) 2008-05-02
JP2010507485A (en) 2010-03-11
JP5118144B2 (en) 2013-01-16
CA2667402A1 (en) 2008-05-02
US20100059195A1 (en) 2010-03-11
CA2667402C (en) 2011-12-06
EP2083957B1 (en) 2011-06-29
CN101528386B (en) 2011-06-15
CN101528386A (en) 2009-09-09
ATE514501T1 (en) 2011-07-15
DE102006051171A1 (en) 2008-04-30

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