EP1393837A1 - Mould pipe - Google Patents

Mould pipe Download PDF

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Publication number
EP1393837A1
EP1393837A1 EP03018893A EP03018893A EP1393837A1 EP 1393837 A1 EP1393837 A1 EP 1393837A1 EP 03018893 A EP03018893 A EP 03018893A EP 03018893 A EP03018893 A EP 03018893A EP 1393837 A1 EP1393837 A1 EP 1393837A1
Authority
EP
European Patent Office
Prior art keywords
wall thickness
longitudinal edge
mold tube
wall
edge areas
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
EP03018893A
Other languages
German (de)
French (fr)
Other versions
EP1393837B1 (en
Inventor
Roland Hauri
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.)
KME Special Products GmbH and Co KG
Original Assignee
KM Europa Metal AG
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Filing date
Publication date
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Publication of EP1393837A1 publication Critical patent/EP1393837A1/en
Application granted granted Critical
Publication of EP1393837B1 publication Critical patent/EP1393837B1/en
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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or 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
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting

Definitions

  • the invention relates to a mold tube made of copper for the continuous casting of metals according to the features in the preambles of claims 1 and 4.
  • the prior art includes mold tubes with rectangular inner and Outside cross sections and with rounded longitudinal edge areas, which a nominal wall thickness, which is 8% to 10% of the distance from the Pipe mouth is mutually frontal inner surfaces.
  • the invention is based on the object to create mold tube made of copper for the continuous casting of metals a perfect transfer, especially at casting speeds> 2.5 m / min ensures the heat from the metal to be poured into a cooling medium.
  • the wall thickness of the rectangular mold tube in the longitudinal edge areas opposite the wall thickness in the wall areas between the longitudinal edge areas by 10% to 40% sized smaller.
  • This measure means that even at casting speeds > 2.5 m / min, the heat generated flawlessly to the respective Cooling medium can be transferred, regardless of whether a Cooling medium in a gap between a mold tube and the mold tube surrounding jacket is guided whether the cooling medium in cooling channels in the wall of a mold tube flows or whether the outer surfaces of a mold tube be sprayed directly with a cooling medium.
  • the wall thickness is preferred in accordance with the features of claim 2 Longitudinal edge areas compared to the wall thickness in the wall areas between the longitudinal edge areas by 25% to 30% smaller.
  • the reduction in wall thickness can vary over the entire length of a mold tube extend.
  • the wall thickness reduction in the Longitudinal edge areas is limited to a height range in which the respective bath level of the liquid metal.
  • the wall thickness of the mold tube in Height range of the bath level of the liquid metal over the entire circumference 10% to 40% of the nominal wall thickness reduced.
  • the cross section of the Chill pipe can be polygonal, e.g. be rectangular or round.
  • this is also the preferred one Wall thickness reduction 25% to 30% of the nominal wall thickness.
  • the bathroom mirror is in Mold tube in a height range that extends from the fill face up to about 500 mm from the front of the filler.
  • the level of the bathroom mirror is based on the characteristics of the Claim 7 preferably between 80 mm and 180 mm below the Filling end.
  • 1 is a mold tube made of copper for the continuous casting of Metals, especially steel, referred to.
  • the mold tube 1 has a rectangular inside and outside cross section with the inside and outside rounded longitudinal edge areas 2.
  • the so-called nominal Wall thickness WD of the wall areas 3 between the longitudinal edge areas 2 8% to 10% of the distance A at the pipe mouth 4 opposite each other lying inner surfaces 5.
  • the wall thickness WD1 in the longitudinal edge areas 2 is opposite the wall thickness WD in the wall areas 3 between the longitudinal edge areas 2 by 10% to 40% smaller.
  • the different wall thicknesses WD and WD1 of the mold tube 1 of FIGS. 1 and 2 are present over the entire height H (length) of the mold tube 1.
  • the cooling of the mold tube 1 can be according to one indicated in FIG first embodiment are carried out by a cooling medium which has a gap 6 flows through, between the outer surface 7 of the mold tube 1 and one Sheath 8 is formed, which envelops the mold tube 1 with a defined distance A1.
  • a second embodiment shown in FIG. 2 looks into the wall areas 3 of the mold tube 1 introduced longitudinal channels 9, which with a suitable Coolant to be applied.
  • FIG. 2 shows an embodiment of a cooling method, at which the outer surfaces 7 of the mold tube 1 in partial areas or are cooled overall by means of a cooling medium which is placed on these surfaces 7 is sprayed from nozzles 10.
  • FIG. 3 shows a mold tube 1a made of copper for the continuous casting of metals, in which the reduction in wall thickness in the longitudinal edge areas 2 to one Height range 11 is limited, in which the level of not closer illustrated bath level of the liquid metal.
  • This height range 11 generally extends between the filling face 12 of the mold tube 1a and an area that is approximately 500 mm below the filler face 12.
  • the cooling of the mold tube 1 a can take place like the cooling of the mold tube 1. In this respect, there is no need for another explanation.
  • a mold tube 1b made of copper for the continuous casting of Metals according to Figures 4 and 5 is not closer to the height range 14 of the illustrated liquid metal bath level the wall thickness WD2 Pipe wall 16 over the entire circumference to 10% to 40% of the nominal Wall thickness WD3 reduced.
  • This height range 14 extends from the Filling end face 12a from about 500 mm in the direction of the pipe mouth 4a.
  • the Bathroom mirror as such is usually in a height range 15 between 80 mm and 180 mm below the fill face 12a.
  • the nominal wall thickness WD3 is 8% to 10% of the distance A2 of the frontally opposite one another at the pipe mouth 4a inner surfaces 5a.
  • FIGS. 4 and 5 of a mold tube 1b can thus be cooled be, as was explained with reference to Figure 2. In this respect, one repeated description can be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Mold tube made from copper has a rectangular inner and outer cross-section with rounded longitudinal edge regions (2) and a nominal wall thickness which is 8-10 % of the distance of the inner surfaces (5) lying opposite each other on the tube mouth. The wall thickness in the longitudinal edge regions opposite the wall thickness of the wall regions between the longitudinal edge regions is 10-40 % smaller. An Independent claim is also included for an alternative mold tube.

Description

Die Erfindung betrifft ein Kokillenrohr aus Kupfer zum Stranggießen von Metallen gemäß den Merkmalen in den Oberbegriffen der Patentansprüche 1 und 4.The invention relates to a mold tube made of copper for the continuous casting of metals according to the features in the preambles of claims 1 and 4.

Zum Stand der Technik zählen Kokillenrohre mit rechteckigen Innen- und Außenquerschnitten sowie mit gerundeten Längskantenbereichen, welche eine nominale Wanddicke aufweisen, die 8 % bis 10 % des Abstands der an der Rohrmündung einander frontal gegenüber liegenden inneren Oberflächen beträgt.The prior art includes mold tubes with rectangular inner and Outside cross sections and with rounded longitudinal edge areas, which a nominal wall thickness, which is 8% to 10% of the distance from the Pipe mouth is mutually frontal inner surfaces.

Des Weiteren ist es bei Kokillenrohren bekannt, die inneren Oberflächen indirekt unter den Einfluß von Wärme abführenden, von außen der Rohrwand zuführbaren Kühlmedien zu stellen. Hierbei können die Kokillenrohre mit den Außenkonturen angepaßten Mänteln versehen sein, die zusammen mit den äußeren Oberflächen der Kokillenrohre genau definierte Spalte bilden, durch die Kühlmedien geleitet werden. Ferner können die Kühlmedien durch vertikal in die Wände der Kokillenrohre eingebrachte Kühlkanäle fließen. Schließlich ist es noch bekannt, die äußeren Oberflächen der Kokillenrohre über Sprühdüsen mit Kühlmedien zu beaufschlagen.Furthermore, it is known with mold tubes that the inner surfaces are indirect under the influence of heat-dissipating, from the outside of the pipe wall To provide cooling media. Here, the mold tubes with the outer contours be fitted coats that together with the outer surfaces of the Mold tubes form precisely defined gaps through which cooling media are directed. Furthermore, the cooling media can flow vertically into the walls of the mold tubes introduced cooling channels flow. Finally, it is known the outer Apply cooling media to the surfaces of the mold tubes via spray nozzles.

Im Zuge der Bestrebungen der Praxis, die Gießgeschwindigkeiten zu erhöhen, und zwar über 2,5 m/min hinaus, kann aufgrund der beschränkten Wärmedurchgangskapazität der Grundwerkstoffe der Kokillenrohre die dann anfallende Wärme nur noch zum Teil an die Wärme abführenden Kühlmedien übertragen werden. Die Folge sind partielle Überhitzungen und dabei Beschädigungen der inneren Oberflächen der Kokillenrohre. Dieser Sachverhalt ist insbesondere in den Höhenbereichen der im Niveau variierenden Badspiegel bzw. im Bereich der ersten Phasen der Primärerstarrungen der abzugießenden Metalle zu beobachten, weil dort das größte Wärmeangebot an das Kokillenmaterial herrscht.In the course of efforts to increase casting speeds, and over 2.5 m / min, due to the limited heat transfer capacity the base materials of the mold tubes are then the Only partially transfer heat to the heat-dissipating cooling media become. The result is partial overheating and damage to the inner surfaces of the mold tubes. This is particularly the case in the Height ranges of the bathroom mirror varying in level or in the area of the first Observe phases of the primary solidification of the metals to be cast, because there there is the greatest supply of heat to the mold material.

Der Erfindung liegt - ausgehend vom Stand der Technik - die Aufgabe zugrunde, ein Kokillenrohr aus Kupfer zum Stränggießen von Metallen zu schaffen, das insbesondere bei Gießgeschwindigkeiten > 2,5 m/min eine einwandfreie Überführung der Wärme aus dem abzugießenden Metall in ein Kühlmedium gewährleistet.Starting from the prior art, the invention is based on the object To create mold tube made of copper for the continuous casting of metals a perfect transfer, especially at casting speeds> 2.5 m / min ensures the heat from the metal to be poured into a cooling medium.

Diese Aufgabe wird einerseits mit den Merkmalen im kennzeichnenden Teil des Patentanspruchs 1 und alternativ dazu mit den Merkmalen im kennzeichnenden Teil des Patentanspruchs 4 gelöst.This task is on the one hand with the features in the characterizing part of the Claim 1 and alternatively with the features in the characterizing part of claim 4 solved.

Entsprechend einer 1. Lösungsalternative der Erfindung ist jetzt die Wanddicke des rechteckigen Kokillenrohrs in den Längskantenbereichen gegenüber der Wanddicke in den Wandbereichen zwischen den Längskantenbereichen um 10% bis 40% kleiner bemessen. Diese Maßnahme führt dazu, daß auch bei Gießgeschwindigkeiten > 2,5 m/min die anfallende Wärme einwandfrei an das jeweilige Kühlmedium überführt werden kann, und zwar unabhängig davon, ob nun ein Kühlmedium in einem Spalt zwischen einem Kokillenrohr und einem das Kokillenrohr umgebenden Mantel geführt wird, ob das Kühlmedium in Kühlkanälen in der Wand eines Kokillenrohrs strömt oder ob die äußeren Oberflächen eines Kokillenrohrs direkt mit einem Kühlmedium besprüht werden.According to a 1st alternative solution of the invention, the wall thickness of the rectangular mold tube in the longitudinal edge areas opposite the wall thickness in the wall areas between the longitudinal edge areas by 10% to 40% sized smaller. This measure means that even at casting speeds > 2.5 m / min, the heat generated flawlessly to the respective Cooling medium can be transferred, regardless of whether a Cooling medium in a gap between a mold tube and the mold tube surrounding jacket is guided whether the cooling medium in cooling channels in the wall of a mold tube flows or whether the outer surfaces of a mold tube be sprayed directly with a cooling medium.

Bevorzugt ist die Wanddicke gemäß den Merkmalen des Patentanspruchs 2 in den Längskantenbereichen gegenüber der Wanddicke in den Wandbereichen zwischen den Längskantenbereichen um 25 % bis 30 % kleiner bemessen. The wall thickness is preferred in accordance with the features of claim 2 Longitudinal edge areas compared to the wall thickness in the wall areas between the longitudinal edge areas by 25% to 30% smaller.

Die Wanddickenreduzierung kann sich über die gesamte Länge eines Kokillenrohrs erstrecken.The reduction in wall thickness can vary over the entire length of a mold tube extend.

Denkbar ist es aber auch in Abhängigkeit von den jeweiligen örtlichen Verhältnissen, daß nach Patentanspruch 3 die Wanddickenreduzierung in den Längskantenbereichen auf einen Höhenbereich beschränkt ist, in welchem der jeweilige Badspiegel des flüssigen Metalls liegt.But it is also conceivable depending on the respective local conditions, that according to claim 3, the wall thickness reduction in the Longitudinal edge areas is limited to a height range in which the respective bath level of the liquid metal.

Gemäß einer 2. Lösungsalternative ist entsprechend den Merkmalen im kennzeichnenden Teil des Patentanspruchs 4 die Wanddicke des Kokillenrohrs im Höhenbereich des Badspiegels des flüssigen Metalls über den gesamten Umfang auf 10% bis 40% der nominalen Wanddicke reduziert. Der Querschnitt des Kokillenrohrs kann mehreckig, das heißt z.B. rechteckig, oder auch rund sein.According to a second alternative solution, according to the characteristics in the characteristic Part of claim 4, the wall thickness of the mold tube in Height range of the bath level of the liquid metal over the entire circumference 10% to 40% of the nominal wall thickness reduced. The cross section of the Chill pipe can be polygonal, e.g. be rectangular or round.

Auch hierbei beträgt nach den Merkmalen des Patentanspruchs 5 die bevorzugte Wanddickenreduzierung 25 % bis 30 % der nominalen Wanddicke.According to the features of claim 5, this is also the preferred one Wall thickness reduction 25% to 30% of the nominal wall thickness.

Entsprechend den Merkmalen des Patentanspruchs 6 liegt der Badspiegel im Kokillenrohr in einem Höhenbereich, der sich von der Einfüllstirnseite aus bis zu etwa 500 mm von der Einfüllstirnseite erstreckt.According to the features of claim 6, the bathroom mirror is in Mold tube in a height range that extends from the fill face up to about 500 mm from the front of the filler.

Erfahrungsgemäß liegt das Höhenniveau des Badspiegels nach den Merkmalen des Patentanspruchs 7 bevorzugt zwischen 80 mm und 180 mm unterhalb der Einfüllstirnseite.Experience has shown that the level of the bathroom mirror is based on the characteristics of the Claim 7 preferably between 80 mm and 180 mm below the Filling end.

Die Erfindung ist nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Figur 1
in der Perspektive ein Kokillenrohr;
Figur 2
in vergrößertem Maßstab eine Draufsicht auf das Kokillenrohr der Figur 1 mit drei verschiedenen Kühlvarianten;
Figur 3
in der Perspektive eine weitere Ausführungsform eines Kokillenrohrs;
Figur 4
in der Perspektive eine dritte Ausführungsform eines Kokillenrohrs und
Figur 5
in vergrößertem Maßstab eine Draufsicht auf das Kokillenrohr der Figur 4.
The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawings. Show it:
Figure 1
in perspective a mold tube;
Figure 2
in an enlarged scale a top view of the mold tube of Figure 1 with three different cooling variants;
Figure 3
in perspective another embodiment of a mold tube;
Figure 4
in perspective a third embodiment of a mold tube and
Figure 5
4 shows a plan view of the mold tube of FIG. 4 on an enlarged scale.

In den Figuren 1 und 2 ist mit 1 ein Kokillenrohr aus Kupfer zum Stranggießen von Metallen, insbesondere Stahl, bezeichnet.In Figures 1 and 2, 1 is a mold tube made of copper for the continuous casting of Metals, especially steel, referred to.

Das Kokillenrohr 1 weist einen rechteckigen Innen- und Außenquerschnitt mit innen und außen gerundeten Längskantenbereichen 2 auf. Die sogenannte nominale Wanddicke WD der Wandbereiche 3 zwischen den Längskantenbereichen 2 beträgt 8 % bis 10 % des Abstands A der an der Rohrmündung 4 einander frontal gegenüber liegenden inneren Oberflächen 5.The mold tube 1 has a rectangular inside and outside cross section with the inside and outside rounded longitudinal edge areas 2. The so-called nominal Wall thickness WD of the wall areas 3 between the longitudinal edge areas 2 8% to 10% of the distance A at the pipe mouth 4 opposite each other lying inner surfaces 5.

Die Wanddicke WD1 in den Längskantenbereichen 2 ist gegenüber der Wanddicke WD in den Wandbereichen 3 zwischen den Längskantenbereichen 2 um 10 % bis 40 % kleiner bemessen.The wall thickness WD1 in the longitudinal edge areas 2 is opposite the wall thickness WD in the wall areas 3 between the longitudinal edge areas 2 by 10% to 40% smaller.

Die unterschiedlichen Wanddicken WD und WD1 des Kokillenrohrs 1 der Figuren 1 und 2 sind über die gesamte Höhe H (Länge) des Kokillenrohrs 1 vorhanden.The different wall thicknesses WD and WD1 of the mold tube 1 of FIGS. 1 and 2 are present over the entire height H (length) of the mold tube 1.

Die Kühlung des Kokillenrohrs 1 kann gemäß einer in der Figur 2 angedeuteten ersten Ausführungsform durch ein Kühlmedium erfolgen, das einen Spalt 6 durchströmt, der zwischen der äußeren Oberfläche 7 des Kokillenrohrs 1 und einem Mantel 8 gebildet ist, welcher das Kokillenrohr 1 mit definiertem Abstand A1 umhüllt. The cooling of the mold tube 1 can be according to one indicated in FIG first embodiment are carried out by a cooling medium which has a gap 6 flows through, between the outer surface 7 of the mold tube 1 and one Sheath 8 is formed, which envelops the mold tube 1 with a defined distance A1.

Eine in der Figur 2 dargestellte zweite Ausführungsform sieht in die Wandbereiche 3 des Kokillenrohrs 1 eingebrachte Längskanäle 9 vor, die mit einem geeigneten Kühlmedium beaufschlagt werden.A second embodiment shown in FIG. 2 looks into the wall areas 3 of the mold tube 1 introduced longitudinal channels 9, which with a suitable Coolant to be applied.

Schließlich zeigt die Figur 2 noch eine Ausführungsform einer Kühlmethode, bei welcher die äußeren Oberflächen 7 des Kokillenrohrs 1 in Teilbereichen oder insgesamt mittels eines Kühlmediums gekühlt werden, das auf diese Oberflächen 7 aus Düsen 10 gesprüht wird.Finally, FIG. 2 shows an embodiment of a cooling method, at which the outer surfaces 7 of the mold tube 1 in partial areas or are cooled overall by means of a cooling medium which is placed on these surfaces 7 is sprayed from nozzles 10.

Die der Figur 3 zeigt ein Kokillenrohr 1a aus Kupfer zum Stranggießen von Metallen, bei welchem die Wanddickenreduzierung in den Längskantenbereichen 2 auf einen Höhenbereich 11 beschränkt ist, in welchem sich das Niveau des nicht näher veranschaulichten Badspiegels des flüssigen Metalls befindet. Dieser Höhenbereich 11 erstreckt sich in der Regel zwischen der Einfüllstirnseite 12 des Kokillenrohrs 1a und einem Bereich, der etwa 500 mm unterhalb der Einfüllstirnseite 12 liegt.3 shows a mold tube 1a made of copper for the continuous casting of metals, in which the reduction in wall thickness in the longitudinal edge areas 2 to one Height range 11 is limited, in which the level of not closer illustrated bath level of the liquid metal. This height range 11 generally extends between the filling face 12 of the mold tube 1a and an area that is approximately 500 mm below the filler face 12.

Die Kühlung des Kokillenrohrs 1a kann wie die Kühlung des Kokillenrohrs 1 erfolgen. Insofern erübrigt sich eine nochmalige Erläuterung.The cooling of the mold tube 1 a can take place like the cooling of the mold tube 1. In this respect, there is no need for another explanation.

Aus der gemeinsamen Betrachtung der Figuren 2 und 3 ist noch ersichtlich, wie die Wanddickenreduzierung in den Längskantenbereichen 2 erfolgt. Der ursprüngliche Verlauf des Außenumfangs des Kokillenrohrs 1a im unteren Höhenbereich ist in der Figur 2 in unterbrochener Linienführung 13 veranschaulicht.From the joint consideration of Figures 2 and 3 it can still be seen how the Wall thickness reduction takes place in the longitudinal edge areas 2. The original one The course of the outer circumference of the mold tube 1 a in the lower height range is in the Figure 2 illustrates in broken lines 13.

Bei der Ausführungsform eines Kokillenrohrs 1b aus Kupfer zum Stranggießen von Metallen gemäß den Figuren 4 und 5 ist im Höhenbereich 14 des nicht näher veranschaulichten Badspiegels des flüssigen Metalls die Wanddicke WD2 der Rohrwand 16 über den gesamten Umfang auf 10 % bis 40 % der nominalen Wanddicke WD3 reduziert. Dieser Höhenbereich 14 erstreckt sich von der Einfüllstirnseite 12a aus etwa 500 mm in Richtung zur Rohrmündung 4a. Der Badspiegel als solcher liegt meistens in einem Höhenbereich 15 zwischen 80 mm und 180 mm unterhalb der Einfüllstirnseite 12a.In the embodiment of a mold tube 1b made of copper for the continuous casting of Metals according to Figures 4 and 5 is not closer to the height range 14 of the illustrated liquid metal bath level the wall thickness WD2 Pipe wall 16 over the entire circumference to 10% to 40% of the nominal Wall thickness WD3 reduced. This height range 14 extends from the Filling end face 12a from about 500 mm in the direction of the pipe mouth 4a. The Bathroom mirror as such is usually in a height range 15 between 80 mm and 180 mm below the fill face 12a.

Auch bei dieser Ausführungsform beträgt die nominale Wanddicke WD3 8 % bis 10 % des Abstands A2 der an der Rohrmündung 4a einander frontal gegenüberliegenden inneren Oberflächen 5a.In this embodiment too, the nominal wall thickness WD3 is 8% to 10% of the distance A2 of the frontally opposite one another at the pipe mouth 4a inner surfaces 5a.

Die Ausführungsform der Figuren 4 und 5 eines Kokillenrohrs 1b kann so gekühlt werden, wie es anhand der Figur 2 erläutert wurde. Insofern kann auf eine nochmalige Beschreibung verzichtet werden. The embodiment of FIGS. 4 and 5 of a mold tube 1b can thus be cooled be, as was explained with reference to Figure 2. In this respect, one repeated description can be omitted.

BezugszeichenaufstellungREFERENCE NUMBERS

1 -1 -
KokillenrohrMold pipe
1 a -1 a -
KokillenrohrMold pipe
1 b -1 b -
KokillenrohrMold pipe
2 -2 -
Längskantenbereiche v. 1Longitudinal edge areas from 1
3 -3 -
Wandbereiche zw. 2Wall areas between 2
4 -4 -
Rohrmündung v. 1Pipe mouth v. 1
4a -4a -
Rohrmündung v. 1bPipe mouth v. 1b
5 -5 -
innere Oberflächen v. 1inner surfaces v. 1
5a -5a -
innere Oberflächen v. 1binner surfaces v. 1b
6 -6 -
Spalt zw. 7 u. 8Gap between 7 and 8th
7 -7 -
äußere Oberflächen v. 1outer surfaces v. 1
8 -8th -
Mantel um 1Coat by 1
9 -9 -
Längskanäle in 3Longitudinal channels in 3
10-10-
Düsenjet
11 -11 -
Höhenbereich v. 1 aHeight range from 1 a
12 -12 -
Einfüllstirnseite v. 1 aFiller front v. 1 a
12a-12a
Einfüllstirnseite v. 1bFiller front v. 1b
13 -13 -
Umfangsverlaufcircumferential profile
14 -14 -
Höhenbereich v. 1bHeight range from 1b
15 -15 -
Höhenbereich v. 1 bHeight range from 1 b
16 -16 -
Rohrwand v. 1bRohrwand v. 1b
A -A -
Abstand v. 5Distance from 5
A1 -A1 -
Abstand v. 7 u. 8Distance from 7 u. 8th
A2 -A2 -
Abstand v. 5aDistance from 5a
H -H -
Höhe v. 1 Height of 1
WD -WD -
nominale Wanddicke v. 3nominal wall thickness v. 3
WD1 -WD1 -
Wanddicke v. 2Wall thickness v. 2
WD2 -WD2 -
Wanddicke v. 14Wall thickness v. 14
WD3 -WD3 -
nominale Wanddicke v. 1bnominal wall thickness v. 1b

Claims (7)

Kokillenrohr aus Kupfer zum Stranggießen von Metallen, das einen rechteckigen Innen- und Außenquerschnitt mit gerundeten Längskantenbereichen (2) sowie eine nominale Wanddicke (WD) aufweist, die 8 % bis 10 % des Abstands (A) der an der Rohrmündung (4) einander frontal gegenüber liegenden inneren Oberflächen (5) beträgt, wobei die inneren Oberflächen (5) indirekt unter den Wärme abführenden Einfluß eines von außen der Rohrwand (2, 3) zuführbaren Kühlmediums gestellt sind, dadurch gekennzeichnet, t, daß die Wanddicke (WD1) in den Längskantenbereichen (2) gegenüber der Wanddicke (WD) der Wandbereiche (3) zwischen den Längskantenbereichen (2) um 10 % bis 40 % kleiner bemessen ist.Mold tube made of copper for the continuous casting of metals, which has a rectangular inner and outer cross section with rounded longitudinal edge areas (2) and a nominal wall thickness (WD), which is 8% to 10% of the distance (A) from each other at the pipe mouth (4) frontally opposite inner surfaces (5), the inner surfaces (5) being placed indirectly under the heat-dissipating influence of a cooling medium that can be supplied from the outside of the tube wall (2, 3), characterized in that the wall thickness (WD1) in the The longitudinal edge areas (2) are 10% to 40% smaller than the wall thickness (WD) of the wall areas (3) between the longitudinal edge areas (2). Kokillenrohr nach Patentanspruch 1, dadurch gekennzeichnet, daß die Wanddicke (WD1) in den Längskantenbereichen (2) gegenüber der Wanddicke (WD) in den Wandbereichen (3) zwischen den Längskantenbereichen (2) um 25 % bis 30 % kleiner bemessen ist.Mold tube according to claim 1, characterized in that the wall thickness (WD1) in the longitudinal edge areas (2) is 25% to 30% smaller than the wall thickness (WD) in the wall areas (3) between the longitudinal edge areas (2). Kokillenrohr nach Patentanspruch 1 oder 2, dadurch gekennzeichnet, daß die Wanddickenreduzierung in den Längskantenbereichen (2) auf den Höhenbereich (11) beschränkt ist, in welchem das Niveau des Badspiegels des flüssigen Metalls liegt. Mold tube according to claim 1 or 2, characterized in that the reduction in wall thickness in the longitudinal edge regions (2) is limited to the height region (11) in which the level of the bath level of the liquid metal lies. Kokillenrohr aus Kupfer zum Stranggießen von Metallen, das einen mehreckigen oder runden Innen- und Außenquerschnitt sowie eine nominale Wanddicke (WD3) aufweist, die 8 % bis 10 % des Abstands (A2) der an der Rohrmündung (4a) einander frontal gegenüber liegenden inneren Oberflächen (5a) bzw. des Innendurchmessers an der Rohrmündung beträgt, wobei die inneren Oberflächen (5a) indirekt unter den Wärme abführenden Einfluß eines von außen der Rohrwand (16) zuführbaren Kühlmediums gestellt sind, dadurch gekennzeichnet, daß im Höhenbereich (14, 15) des Badspiegels des flüssigen Metalls die Wanddicke (WD2) über den gesamten Umfang auf 10 % bis 40 % der nominalen Wanddicke (WD3) reduziert ist.Chill pipe made of copper for the continuous casting of metals, which has a polygonal or round inside and outside cross section and a nominal wall thickness (WD3), which is 8% to 10% of the distance (A2) of the inner surfaces at the pipe mouth (4a) facing each other frontally (5a) or the inner diameter at the pipe mouth, the inner surfaces (5a) being placed indirectly under the heat-dissipating influence of a cooling medium that can be supplied from the outside of the pipe wall (16), characterized in that in the height range (14, 15) Level of the liquid metal, the wall thickness (WD2) is reduced over the entire circumference to 10% to 40% of the nominal wall thickness (WD3). Kokillenrohr nach Patentanspruch 4, dadurch gekennzeichnet, daß im Höhenbereich (14, 15) des Badspiegels die Wanddicke (WD2) über den gesamten Umfang auf 25 % bis 30 % der nominalen Wanddicke (WD3) reduziert ist.Mold tube according to claim 4, characterized in that in the height region (14, 15) of the bath level the wall thickness (WD2) is reduced over the entire circumference to 25% to 30% of the nominal wall thickness (WD3). Kokillenrohr nach einem der Patentansprüche 3 bis 5, dadurch gekennzeichnet, daß der Badspiegel in einem Höhenbereich (11, 14) bis zu 500 mm unterhalb der Einfüllstirnseite (12, 12a) liegt.Mold tube according to one of the claims 3 to 5, characterized in that the bath level lies in a height range (11, 14) up to 500 mm below the filling end face (12, 12a). Kokillenrohr nach einem der Patentansprüche 3 bis 6, dadurch gekennzeichnet, daß der Badspiegel in einem Höhenbereich (15) zwischen 80 mm und 180 mm unterhalb der Einfüllstirnseite (12a) liegt.Mold tube according to one of the claims 3 to 6, characterized in that the bath level lies in a height range (15) between 80 mm and 180 mm below the filling end face (12a).
EP03018893A 2002-08-29 2003-08-20 Mould pipe Expired - Lifetime EP1393837B1 (en)

Applications Claiming Priority (2)

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DE10240457A DE10240457A1 (en) 2002-08-29 2002-08-29 Mold pipe
DE10240457 2002-08-29

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EP1393837A1 true EP1393837A1 (en) 2004-03-03
EP1393837B1 EP1393837B1 (en) 2005-11-09

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JP (1) JP4318506B2 (en)
KR (1) KR20040019951A (en)
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IT1403035B1 (en) 2010-11-25 2013-09-27 Danieli Off Mecc CRYSTALLIZER FOR CONTINUOUS CASTING

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JPS5027027B1 (en) * 1969-08-11 1975-09-04
JPS5731449A (en) * 1980-07-31 1982-02-19 Kouka Kuroomu Kogyo Kk Mold for continuous casting of steel
JPS61276749A (en) * 1985-05-31 1986-12-06 Sumitomo Metal Ind Ltd Ultrasonically oscillating method for continuous casting mold
DD266753A1 (en) * 1987-10-16 1989-04-12 Zim Veb K CONTINUOUS CASTING

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JPS5436900B2 (en) * 1974-06-05 1979-11-12
JPS5611149A (en) * 1979-07-06 1981-02-04 Nippon Steel Corp Mold for continuous casting of metal
JPS63212044A (en) * 1987-02-27 1988-09-05 Sumitomo Metal Ind Ltd Ultrasonic mold continuous casting method
JPH03118943A (en) * 1989-09-29 1991-05-21 Kawasaki Steel Corp Mold and method for continuously casting low and medium carbon steel
US5247988A (en) * 1989-12-19 1993-09-28 Kurzinski Cass R Apparatus and method for continuously casting steel slabs
JPH09225593A (en) * 1996-02-26 1997-09-02 Nippon Steel Corp Mold for continuously casting square billet
JPH09239496A (en) * 1996-03-11 1997-09-16 Nippon Steel Corp Mold for continuously casting square billet

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Publication number Priority date Publication date Assignee Title
JPS5027027B1 (en) * 1969-08-11 1975-09-04
JPS5731449A (en) * 1980-07-31 1982-02-19 Kouka Kuroomu Kogyo Kk Mold for continuous casting of steel
JPS61276749A (en) * 1985-05-31 1986-12-06 Sumitomo Metal Ind Ltd Ultrasonically oscillating method for continuous casting mold
DD266753A1 (en) * 1987-10-16 1989-04-12 Zim Veb K CONTINUOUS CASTING

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Title
DATABASE WPI Section Ch Week 197540, Derwent World Patents Index; Class M22, AN 1975-66490W, XP002262783 *
PATENT ABSTRACTS OF JAPAN vol. 006, no. 097 (M - 134) 5 June 1982 (1982-06-05) *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 140 (M - 586) 8 May 1987 (1987-05-08) *

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EP1393837B1 (en) 2005-11-09
ATE309062T1 (en) 2005-11-15
TWI271237B (en) 2007-01-21
CN1486804A (en) 2004-04-07
ES2248694T3 (en) 2006-03-16
BR0303438B1 (en) 2011-03-09
RU2319575C2 (en) 2008-03-20
DE50301599D1 (en) 2005-12-15
US20040069458A1 (en) 2004-04-15
DK1393837T3 (en) 2006-03-27
KR20040019951A (en) 2004-03-06
JP4318506B2 (en) 2009-08-26
AU2003227317A1 (en) 2004-03-18
TW200403113A (en) 2004-03-01
CN1313227C (en) 2007-05-02
BR0303438A (en) 2004-09-08
CA2438248A1 (en) 2004-02-29
CA2438248C (en) 2011-10-18
AU2003227317B2 (en) 2010-03-04
US6918428B2 (en) 2005-07-19
RU2003126443A (en) 2005-02-27
JP2004090090A (en) 2004-03-25
DE10240457A1 (en) 2004-03-11
MXPA03006759A (en) 2004-05-05

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