EP0625387A1 - Machine pour la coulée en bande de métaux - Google Patents

Machine pour la coulée en bande de métaux Download PDF

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Publication number
EP0625387A1
EP0625387A1 EP94810247A EP94810247A EP0625387A1 EP 0625387 A1 EP0625387 A1 EP 0625387A1 EP 94810247 A EP94810247 A EP 94810247A EP 94810247 A EP94810247 A EP 94810247A EP 0625387 A1 EP0625387 A1 EP 0625387A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
outlet opening
casting
belt casting
distribution trough
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
EP94810247A
Other languages
German (de)
English (en)
Other versions
EP0625387B1 (fr
Inventor
Klaus Peter Maiwald
Michel Meyer
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.)
Constellium Issoire SAS
Original Assignee
LAUENER ENGINEERING Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LAUENER ENGINEERING Ltd filed Critical LAUENER ENGINEERING Ltd
Publication of EP0625387A1 publication Critical patent/EP0625387A1/fr
Application granted granted Critical
Publication of EP0625387B1 publication Critical patent/EP0625387B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B22D11/0642—Nozzles

Definitions

  • the invention relates to a strip casting installation for metals, in particular for aluminum and aluminum alloys, with a casting nozzle which can be displaced in the direction of flow of the liquid metal and is adjustable perpendicularly thereto, for feeding liquid metal into the adjustable roll gap between rotating molds, the casting nozzle consisting of two connected to a melt distribution trough articulated nozzle elements and two side delimiters, which form a slot-shaped outlet opening for the liquid metal.
  • the pouring nozzle has an upper and a lower, with vertical strip casting systems a left and a right nozzle element.
  • the invention further relates to a method for operating the strip casting installation.
  • horizontal strip casting systems are described in particular. However, it can also be inclined upwards, e.g. 15 °, or cast obliquely downwards and the invention can be used.
  • the invention can also be used for vertical strip casting; only a few terminology changes which are obvious to a person skilled in the art would have to be made, which are mostly omitted here and below for reasons of clarity.
  • Known belt casting systems have, according to a first variant, two casting rolls arranged one above the other (e.g. Lauener Rollcaster), according to a second variant two casting belts rotating one above the other (e.g. Hazelett) or caterpillar molds (e.g. Lauener Block Caster), which are held by a machine frame or arranged in a housing are.
  • two casting rolls arranged one above the other
  • two casting belts rotating one above the other e.g. Hazelett
  • caterpillar molds e.g. Lauener Block Caster
  • a casting trough fed by a trough system guides liquid metal into the nozzle, the outflowing metal solidifies between the casting rolls and emerges as a partially rolled strip.
  • This pouring nozzle can be installed and removed together with its nozzle holder, but accessibility is severely hindered, in particular by the machine frame or housing.
  • the nozzle must not only resist erosion or dissolution in the aggressive, liquid metal, it must also not have high thermal conductivity, because otherwise the liquid metal in the nozzle could solidify, and must withstand the rough foundry operation.
  • a 2752649 for example, a suitable material for a casting nozzle has long been known. This must be positioned so precisely that, on the one hand, unwanted parts do not damage the roll surfaces, but on the other hand no such large gaps are formed between the nozzle and the casting roll that the liquid metal cannot penetrate between the nozzle and the surface of the casting roll.
  • a distance of 0.2 mm from the nozzle to the casting roll is considered optimal; above 0.5 mm, the penetration of molten metal can hardly be prevented.
  • EP, A1 0443204 discloses a horizontally displaceable and height-adjustable casting nozzle for feeding liquid metal into a roll gap, in which the metal supply does not have to be interrupted while a nozzle is being positioned. This allows the pouring nozzle to be replaced without interrupting operation.
  • EP, A1 0137238 describes a casting system for the continuous strip casting of metals, in particular a nozzle arrangement with an extruded nozzle holder and a refractory, pre-cast nozzle.
  • the nozzle holder is extruded as one piece and has all the essential details and tolerances.
  • This nozzle holder and an additional fastening wedge are made of an extruded aluminum alloy.
  • the pouring nozzle is fastened to the holder with screws and clamped, for example, with a fastening wedge. This takes the disassembly and replacement of the nozzle with minimal time.
  • JP, A 01224144 deals with a slow and even flow of molten steel, so that a casting strand of good quality can be produced.
  • the molten metal introduced from a distribution trough is fed into the interior of the fixed nozzle element. After reducing the flow rate, the molten metal emerges from the nozzle gap 11.
  • a movable nozzle element can be moved with an actuator in the direction of the fixed nozzle element or away from it. In this way, the nozzle opening between the nozzle elements and thus the flow rate of the molten steel can be adjusted. With this vertical continuous casting process, cast ingots of good quality can be produced.
  • the inventors have set themselves the task of creating a strip casting installation for metals of the type mentioned at the outset and a method for their operation which allow a casting nozzle with optimal positioning at all times.
  • Adjustable nozzle elements ensure that when the pouring nozzle is retracted, the gap between the nozzle lip and roller is kept constant and no metal can flow back.
  • the two side delimiters of the pouring nozzle are designed in a manner known per se so that the outlet opening of the nozzle can widen when retracted, without metal being able to flow out between a nozzle element and a side delimiter.
  • a hinge arranged directly on the melt distribution trough is preferably a hinge that can be pivoted about an axis.
  • a joint on a nozzle element is expediently a hinge that can be pivoted about an axis, a film hinge, when aluminum is cast, in particular from spring steel, a molded one elastic block, in particular made of the same fiber material as the nozzle element, or a tensile fabric.
  • the nozzle elements can be constructed in a conventional manner, viewed essentially from the side in the form of a pen. At least one nozzle element is severed at a suitable location to form a joint and is connected in an articulated manner to the remaining piece rigidly articulated on the melt distribution trough.
  • the invention can also be used to simplify the design of the pouring nozzles.
  • a plate-shaped piece is rigidly connected to the melt distribution trough and has an articulated connection in the direction of the outlet opening to a much thinner plate, which can be rectangular in cross section, but correspondingly diamond-shaped or even almost triangular.
  • the very small distance of about 0.2 to 0.5 mm of a nozzle lip to the corresponding roller must be kept constant, so that there are no scuff marks on the casting rolls or metal flowing behind between the casting nozzle and the casting roll.
  • sliding inserts made of a self-lubricating material, in particular graphite or hexagonal boron nitride, are installed in the nozzle elements in the region of the nozzle lips.
  • the nozzle elements can rest on exposed areas or evenly distributed over the entire width without any grinding marks.
  • the sliding insert can also extend over the entire width of the nozzle.
  • the object is achieved according to the invention in that the Pouring the pouring nozzle for starting with the outlet opening into a starting position and then pulling it back into a working position, the outlet opening being widened to match the rotating molds.
  • the always present, albeit low, metallostatic pressure has the effect of widening the outlet opening.
  • the metallostatic pressure is preferably increased during the withdrawal of a horizontal or inclined pouring nozzle, in particular by increasing the level in the melt distribution trough. This ensures that the movable part of the nozzle elements is spread or moved parallel until the original distance from the casting rolls is restored.
  • the pivoting movement or the parallel displacement of at least one nozzle element can also take place with the help or at least with the help of mechanically exerted force.
  • the drive can be done by spring force, by a counterweight, by pneumatically, hydraulically or electrically generated force.
  • the casting nozzles according to the invention can be used in all types of strip casting systems, for example roll casting systems, casting systems with endless belts or caterpillar tracks.
  • strip casting machines can not only cast aluminum and aluminum alloys, but also other metals such as zinc, lead, copper, iron and their alloys, including steel.
  • the cast metal strip always has a level-line-free surface, i.e. no cross channels.
  • Ceramic fibers are used, which are soaked with a slip, dried and fired. This creates a relatively brittle molded body which is fire-resistant, chemically and physically resistant to the liquid metal and has a low thermal conductivity.
  • the pouring nozzle 10 shown in FIG. 1, which is articulated to a melt distribution trough 12 (FIG. 3), not shown, comprises an upper and a lower nozzle element 14, 16.
  • the upper nozzle element 14 has an adjustable mouthpiece 18 and is parallel to one another Outlet opening 20 of the pouring nozzle 10 pivotable axis A2 of a hinge 22 pivotable.
  • the pouring nozzle 10 When moving off, the pouring nozzle 10 is advanced with the outlet opening 20 into the starting position S shown in broken lines.
  • the distance between the nozzle lips 24 from the upper and lower casting rolls 26, 28 is in the range from 0.2 to 0.3 mm.
  • the distance d of the nozzle opening 20 from the roll gap 30, the smallest distance of the casting rolls 26, 28 on the connecting plane E from their axes lying outside the drawing sheet, is in the range from 20 to 50 mm.
  • the pouring nozzle 10 is withdrawn by a distance a of approximately 30 to 70 mm into the working position W of the outlet opening 20.
  • the pouring nozzle 10 also program-controlled, is lowered by the depth t, which is calculated taking into account the roller radius, not shown, and the distances a, d such that the distance of the nozzle lip 24 of the lower nozzle element 16 from the lower nozzle roller 28 remains unchanged remains about 0.2 to 0.5 mm.
  • the mouthpiece 18 of the upper nozzle element is adjusted in such a way by means shown in detail in the following figures that the same distance of the nozzle lip 24 from the upper nozzle element 16 is maintained.
  • the pouring nozzle 10 thus automatically adapts to the roller when moving back and allows relatively large adjustment options.
  • the distance d is set as small as the design of the nozzle allows, the distance a is so large that the machine is not overloaded or has to be larger.
  • a variant of Fig. 1 the lower nozzle element 16 has a pivotable via a hinge 22 with an axis A2 swiveling mouthpiece 18.
  • the pouring nozzle 10 is retracted from the starting position S into the working position W by the distance a Height not adjusted, the lowering t of FIG. 1 is omitted.
  • Both mouthpieces 18 will be discussed in more detail later shown means adjusted by pivoting about the axes A2 so that the distance of the nozzle lips 24 from the casting rolls 26, 28 remains unchanged at about 0.2 to 0.3 mm.
  • FIG. 3 shows a mobile pouring trough 32 according to EP, A1 0443204, which has a melt distribution trough 12 with a detachably articulated pouring nozzle 10 with respect to the direction of flow F of the molten metal 35, in the present case an aluminum alloy.
  • the upper nozzle element 14 is articulated via a hinge 22 with an axis A 1, the lower nozzle element 16 rigidly to the melt distribution trough 12.
  • Both nozzle elements 14, 16 are supported by a pivotable or rigid nozzle holder 34, 36, which can be removed with the pouring nozzle 10, a lowerable slide 38 closing the melt distribution trough 12.
  • the melt distribution trough 12 is separated from the mobile launder 32 by a partition 40 with an opening 42.
  • This opening 42 can be closed in a program-controlled manner by means of a flap 44 with a terminal, truncated cone-shaped pin 46.
  • the pivoting movement of the flap 44 is indicated by an arrow 48.
  • the metal level 50 in the melt distribution trough 12 can be adjusted by the immersion depth of the pin 46 in the opening 40, but it is in any case below the metal level 52 in the mobile launder 32.
  • Both the mobile launder 32 and the melt distribution trough 28 are lined with a refractory insulation layer 54.
  • a flow for the liquid metal 35 is indicated at 56.
  • the metal level 52 of the mobile casting trough 32 and the metal level 50 of the melt distribution trough 12 are checked and adjusted using floats (not shown) or contactless sensors. Both methods are known per se.
  • the signals generated are proportional to the height of the float or the distance between the sensor and the metal surface. These signals are processed and transmitted to a processor or computer, where actuation of actuators is triggered which control the metal supply in accordance with the measured metal levels 50, 52.
  • actuator is, for example, the flap 44.
  • the nozzle elements 14, 16 consist, for example, of ceramic fibers impregnated with slip, which are dried and fired and can thus meet all chemical and physical requirements for the pouring nozzle.
  • the ceramic fibers have not been impregnated with slurry over a length 1 of, for example, 20 to 30 mm over the entire width of the pouring nozzle. Thus, they remain flexible during firing and do not become brittle like the rest of the nozzle element 14.
  • This molded-in elastic block allows the outlet opening 20 to be adjusted by pivoting the mouthpiece 18 of the upper nozzle element 14.
  • a fabric hinge is flexible with respect to the bend, but does not allow elongation in the longitudinal direction. It consists of temperature and tensile fibers that cannot be oxidized, e.g. from Fiberfrax. In particular when casting aluminum or aluminum alloys, a foil hinge made of a metal, for example spring steel, can also be used. A fabric or film hinge 60 can be arranged inside or outside.
  • a nozzle can consist not only of conventional nozzle shapes with one or two cut-off mouthpieces, but also of simple molded parts, for example of a thicker and a thinner plate with a rectangular cross section.
  • FIG. 5 shows nozzle elements 14, 16 which are beveled in the direction of the outlet opening 20 and mouthpieces 18 which taper linearly over the entire length.
  • FIG. 6 shows the area of the nozzle lip of an upper nozzle element 14.
  • inserts 62 made of a self-lubricating material, in the present case graphite, are arranged at regular intervals over the entire width of the upper nozzle element. These inserts 62 protrude approximately 0.2 to 0.3 mm from the nozzle lip and can thus avoid any contact of the nozzle 10 with a casting roller 26, 28 (FIGS. 1, 2) during casting.
  • inserts 62 can also be inserted into mouthpieces 18 and into a lower casting element 16.
  • an angle piece 64, 66 is fastened to the upper nozzle element 14 and mouthpiece 18, which is connected to a fabric or film hinge 60, a total of at least two - corresponding to the width of the casting nozzle 10.
  • the angles 64, 66 lying one behind the other in the flow direction F of the molten metal are connected to one another via a spring 68. This is slightly tensioned in the approach position S (FIGS. 1, 2).
  • the mouthpiece 18 is raised in accordance with the casting roller 26.
  • only the mouthpiece 18 has an angle piece 66.
  • a threaded rod 70 which runs in the flow direction F of the molten metal, is fastened to this and carries a counterweight 72 which can be moved by rotation and which corresponds functionally to the spring 68 according to FIG. 7.
  • dosable forces can be set via cylinders and other rods articulated to the angle piece 66, which forces can be generated in a program-controlled manner by the above-mentioned pneumatic, hydraulic and electromotive means and define a precise path.
  • FIGS. 3 and 8 All figures are drawn for horizontal strip casting, but they are also suitable for oblique strip casting upwards or downwards, FIGS. 3 and 8 only for slight deviations from the horizontal. If Fig. 1, 2 and 4 to 7 are rotated by 90 °, the vertical strip casting is also shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Coating With Molten Metal (AREA)
EP94810247A 1993-05-18 1994-05-02 Machine pour la coulée en bande de métaux Expired - Lifetime EP0625387B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1506/93 1993-05-18
CH150693 1993-05-18

Publications (2)

Publication Number Publication Date
EP0625387A1 true EP0625387A1 (fr) 1994-11-23
EP0625387B1 EP0625387B1 (fr) 1998-09-16

Family

ID=4212040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810247A Expired - Lifetime EP0625387B1 (fr) 1993-05-18 1994-05-02 Machine pour la coulée en bande de métaux

Country Status (8)

Country Link
US (1) US5755274A (fr)
EP (1) EP0625387B1 (fr)
JP (1) JPH06344088A (fr)
KR (1) KR100351961B1 (fr)
AT (1) ATE171092T1 (fr)
BR (1) BR9401995A (fr)
DE (1) DE59406910D1 (fr)
ES (1) ES2123743T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5636681A (en) * 1994-07-19 1997-06-10 Alcan International Limited Process and apparatus for casting metal strip
CN109550911A (zh) * 2017-09-27 2019-04-02 上海菲特尔莫古轴瓦有限公司 一种用于铸轧机辊式浇铸线的铸嘴定位装置以及定位方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404105B (de) * 1995-07-27 1998-08-25 Voest Alpine Ind Anlagen Verfahren zum stranggiessen einer metallschmelze
ATE306996T1 (de) * 1997-10-31 2005-11-15 Fata Hunter Inc Verstellbare zufuhrsystem für erschmolzenes metall
US6363999B1 (en) 1999-12-03 2002-04-02 Fata Hunter, Inc. Variable tip width adjustment system
PL1932605T3 (pl) * 2006-12-14 2010-08-31 Mkm Mansfelder Kupfer Und Messing Gmbh Sposób i urządzenie do wytwarzania szerokich taśm z miedzi lub stopów miedzi
KR101363614B1 (ko) * 2011-12-27 2014-02-18 재단법인 포항산업과학연구원 마그네슘 합금 선재의 제조 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508433A (de) * 1970-06-24 1971-06-15 Prolizenz Ag C O Schweiz Kredi Düse für die Zuführung des geschmolzenen Metalles beim Bandgiessen in Raupenkokille
EP0123121A1 (fr) * 1983-03-26 1984-10-31 Fried. Krupp Gesellschaft mit beschränkter Haftung Installation de chargement pour alimenter en acier fondu des machines de coulée en continu dont les parois de lingotière se déplacent dans le mDme sens que la direction de coulée
EP0137238A1 (fr) * 1983-08-26 1985-04-17 Norsk Hydro A/S Système de coulée
JPH01224144A (ja) * 1988-03-03 1989-09-07 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳機の注湯装置
EP0443204A1 (fr) * 1990-02-19 1991-08-28 Lauener Engineering AG Dispositif pour charger le métal liquide dans une machine de coulée de bandes

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752649A (en) * 1952-12-27 1956-07-03 Hunter Douglas Corp Feed spout for continuous casting machine
US4648438A (en) * 1982-04-28 1987-03-10 Hazelett Strip-Casting Corporation Method and apparatus for feeding and continuously casting molten metal with inert gas applied to the moving mold surfaces and to the entering metal
CH661882A5 (de) * 1983-06-01 1987-08-31 Lauener W F Ag Verfahren zum zufuehren einer metallschmelze in den giessspalt einer giessmaschine und giessmaschine zur durchfuehrung des verfahrens.
DE3401024C2 (de) * 1984-01-13 1986-01-16 Fried. Krupp Gmbh, 4300 Essen Aus mehreren Längsabschnitten bestehende Gießdüse zum Zuführen von Metallschmelze in eine Stranggießkokille und Verfahren zur Herstellung des Mundstücks einer derartigen Gießdüse
US4641767A (en) * 1985-01-28 1987-02-10 Hunter Engineering Co., Inc. Casting tip assembly with replaceable upstream and downstream units
JPS61229449A (ja) * 1985-04-04 1986-10-13 Ishikawajima Harima Heavy Ind Co Ltd 薄板連続鋳造機用給湯装置
JPS62192229A (ja) * 1986-02-20 1987-08-22 Nippon Yakin Kogyo Co Ltd 金属薄板の直接製造装置とその製造方法
JPS63303661A (ja) * 1987-01-22 1988-12-12 Ishikawajima Harima Heavy Ind Co Ltd 注湯装置
JPH01309761A (ja) * 1988-06-08 1989-12-14 Ishikawajima Harima Heavy Ind Co Ltd 移動鋳型式連続鋳造機の注湯装置
US4972900A (en) * 1989-10-24 1990-11-27 Hazelett Strip-Casting Corporation Permeable nozzle method and apparatus for closed feeding of molten metal into twin-belt continuous casting machines
GB9003699D0 (en) * 1990-02-19 1990-04-18 Davy Mckee Poole Roll casting machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508433A (de) * 1970-06-24 1971-06-15 Prolizenz Ag C O Schweiz Kredi Düse für die Zuführung des geschmolzenen Metalles beim Bandgiessen in Raupenkokille
EP0123121A1 (fr) * 1983-03-26 1984-10-31 Fried. Krupp Gesellschaft mit beschränkter Haftung Installation de chargement pour alimenter en acier fondu des machines de coulée en continu dont les parois de lingotière se déplacent dans le mDme sens que la direction de coulée
EP0137238A1 (fr) * 1983-08-26 1985-04-17 Norsk Hydro A/S Système de coulée
JPH01224144A (ja) * 1988-03-03 1989-09-07 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳機の注湯装置
EP0443204A1 (fr) * 1990-02-19 1991-08-28 Lauener Engineering AG Dispositif pour charger le métal liquide dans une machine de coulée de bandes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 542 (M - 901)<3890> 5 December 1989 (1989-12-05) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5636681A (en) * 1994-07-19 1997-06-10 Alcan International Limited Process and apparatus for casting metal strip
CN109550911A (zh) * 2017-09-27 2019-04-02 上海菲特尔莫古轴瓦有限公司 一种用于铸轧机辊式浇铸线的铸嘴定位装置以及定位方法
CN109550911B (zh) * 2017-09-27 2023-10-13 上海菲特尔莫古轴瓦有限公司 一种用于铸轧机辊式浇铸线的铸嘴定位装置以及定位方法

Also Published As

Publication number Publication date
JPH06344088A (ja) 1994-12-20
ES2123743T3 (es) 1999-01-16
BR9401995A (pt) 1994-12-13
KR100351961B1 (ko) 2002-11-02
DE59406910D1 (de) 1998-10-22
ATE171092T1 (de) 1998-10-15
US5755274A (en) 1998-05-26
EP0625387B1 (fr) 1998-09-16

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