EP0283425A1 - Procédé et dispositif pour la coulée de bandes métalliques, en particulier en acier - Google Patents

Procédé et dispositif pour la coulée de bandes métalliques, en particulier en acier Download PDF

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Publication number
EP0283425A1
EP0283425A1 EP88730032A EP88730032A EP0283425A1 EP 0283425 A1 EP0283425 A1 EP 0283425A1 EP 88730032 A EP88730032 A EP 88730032A EP 88730032 A EP88730032 A EP 88730032A EP 0283425 A1 EP0283425 A1 EP 0283425A1
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EP
European Patent Office
Prior art keywords
conveyor belt
casting
pouring
cooled
nozzle
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
EP88730032A
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German (de)
English (en)
Other versions
EP0283425B1 (fr
Inventor
Wolfgang Prof. Dr.-Ing. Reichelt
Matthias Scheulen
Klaus Prof. Dr.-Ing. Schwerdtfeger
Peter Dr.-Ing. Voss-Spilker
Ewald Dipl.-Ing. Feuerstacke
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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
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Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0283425A1 publication Critical patent/EP0283425A1/fr
Application granted granted 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt

Definitions

  • the invention relates to a device for casting strips of metal, in particular steel, consisting of a storage vessel with a pouring nozzle and a shaping device for the casting belt, the storage vessel and shaping device being mounted on a frame which is adjustable in inclination to the horizontal.
  • Such a device with a frame adjustable in inclination, is described in DE-AS 21 16 870. It is used for casting non-ferrous metals with metal strip thicknesses of a few millimeters. A practically advantageously applicable embodiment for steel as molten metal is not known.
  • Such a method requires a momentary acceleration of the molten metal from the exit direction of the molten metal, starting from the pouring nozzle in the direction of movement of the cooled conveyor belt.
  • the occurring differences in speed cause an unsafe flow, so that the desired thickness is difficult to control and differences in thickness cannot be excluded.
  • the invention has for its object to improve the casting and continuous casting dynamically and fluidically.
  • the casting device With the casting device according to the invention, only a weak deflection of the individual sub-layer flows is achieved with layer-dependent acceleration in the direction of movement of the conveyor belt, so that a largely laminar flow is achieved on the cooled conveyor belt.
  • the discharge speed at the end of the pouring nozzle is almost equal to the conveyor belt speed.
  • the parameters to be observed are in particular the metal strip thickness, the overheating temperature and the properties of the respective steel grades.
  • the casting process is initiated by gradually tilting the conveyor belt from an approximately horizontal starting position of the impact surface for the molten metal into the inclined operating position for starting.
  • the design of the pouring device has the advantage of a common inclination of the storage vessel and the conveyor belt level as well to be able to adjust like a separate adjustment between the storage container and the conveyor belt level, taking into account the height distance apart from the inclination.
  • a further improvement provides that a slide guide for an adjustable slide is provided on the frame, on which the storage container and at least lifting devices for the storage container are arranged.
  • the storage vessel can be set on the one hand to the conveyor belt and on the other hand can be completely removed from the area of the conveyor belt so that the conveyor belt is accessible.
  • a support for the cooled conveyor belt is arranged between the drums, that the support has a continuous contour that runs over a tangent to the drum circumference and that at least in the area of Pouring nozzle of the storage vessel is provided with a height that corresponds at least to the thickness of the cooled conveyor belt together with the thickness of the cast belt and is adapted to the course of the continuous contour of the support or the cooled conveyor belt and is arranged laterally.
  • a suitable base for guiding the conveyor belt and for weight absorption also created the cast belt and on the other hand created a basis for a basis connected with the inclination adjustment for setting the most favorable flow conditions by the continuous contour. Then the moving seal solves the problem of lateral leakage of the casting material or lateral thickness differences across the cross section of the cast strip.
  • the cooled smoothing roller is arranged in the region of the pouring nozzle of the storage container.
  • the smoothing takes place in a certain warm area, in which an influence on the surface is advantageous.
  • An advantageous measure to protect the conveyor belt is that a cooling medium can be introduced under pressure between the curved support and the cooled conveyor belt. This increases the cooling for the conveyor belt, which means that a considerable amount of heat has to be dissipated when the casting belt cools down.
  • a further embodiment of the invention consists in that a guide for the cooled conveyor belt is assigned to the drum on the casting side, which is arranged in the region of the pouring nozzle. Such a guide reduces possible wear between the laterally arranged, rotating seals at the height of the conveyor belt.
  • a further improvement is that the drum on the casting side is assigned a cleaning or spraying device for applying size. This advantageously favors the loosening of the cast belt from the conveyor belt.
  • the lateral, rotating seal consists of metallic elements forming a flat surface in the operating position.
  • the consumption of inert gas can also be limited in that a hood protecting against oxidation is arranged after the smoothing roll in the casting direction.
  • the cast strip 1 to be cast is made of molten metal 2 (molten steel), which flows from a storage vessel 3 through a pouring nozzle 4 and arrives at a conveyor belt 5, to which the nozzle mouth 6 with its plane extending over the width 1a has a thickness of 7 mm Casting belt 1 is set at an acute angle to the conveyor belt plane 5a of the conveyor belt 5. An angle adjustment is made in such a way that the nozzle mouth 6 is sealed at its rear part 6a in the direction of movement 8 by the surface tension of the molten metal 2 (meniscus) and at its front part 6b in the direction of movement 8 is at the acute angle, which is the thickness 7 to Conveyor belt level 5a results.
  • molten metal 2 molten steel
  • the conveyor belt plane 5a forms an acute angle 11 to the horizontal 9 in the casting direction 10, which is formed by a corresponding curvature or curvature of the course of the conveyor belt plane 5a.
  • the inclination of the conveyor belt 5 to the horizontal 9 in the casting direction 10 is set as a function of the casting speed and the material parameters of the molten metal (e.g. metal belt thickness 7, superheating temperature, type of steel and the like), so that the outflow speed 12 within the pouring nozzle 4 is equal to the conveyor belt speed 15 .
  • the conveyor belt speed 15 can also be regulated to the specified dimensions of the pouring nozzle 4 and the discharge speed 12 in order to bring the discharge speed into line with the conveyor belt speed 15.
  • the thickness 7 of the cast strip 1 is drawn greatly enlarged in FIGS. 2 and 3 in order to make the speed profile 14 more visible.
  • the speed profile 14 in the front part 6b of the nozzle mouth 6 is advantageously also influenced by a tear-off ring 18 which roughly corresponds to the crushing rings usual in horizontal continuous casting within a horizontal continuous casting mold, i.e. e.g. is made of boron nitride, but causes the metal melt to tear off continuously.
  • the casting device for cast strips 1 with a thickness 7 of a few millimeters has a storage vessel 3 (FIG. 4) which is provided with a lining 19, an intermediate wall 20, a cover 21 and the pouring nozzle 4.
  • the pouring nozzle 4 is mounted in a pouring stone 22 and held by a sealing ring 24 by means of a retaining ring 23 fastened to the vessel jacket 3a.
  • the pouring nozzle 4 is therefore easy to replace.
  • Either a cooling device 25 or a heating device 26 is arranged around the front area 4a, both of which can also be combined and can be switched on or off depending on the temperature of the molten metal 2.
  • an adjustable, cooled smoothing roller 27 above the conveyor belt level 5a at a distance of the thickness 7 of the casting belt 1, the length of which is dimensioned in accordance with the width of the casting belt 1.
  • the smoothing roller 27 is also rotatably supported in a pivot bearing 28 (FIG. 5) which is supported on a pair of articulated arms 29 and a pair of columns 30.
  • a (hydraulic) pair of lifting units 31 is used for setting and adjusting the smoothing roller 27.
  • the storage vessel 3 for the molten metal 2 and the drums 5b and 5c with the conveyor belt 5 are arranged on a frame 32.
  • the frame 32 consists of two parallel beams 32a and 32b (Fig. 6).
  • the frame 32 can be pivoted about the horizontal axis 33 of the bearing block pair 34 by a piston-cylinder engine 36 supported on the corridor 35 and articulated on the frame 32.
  • the storage vessel 3 is, as will be described in more detail below, on the frame 32 adjustable in height and inclination to the conveyor belt level 5a.
  • a slide guide 37 for an adjustable slide 38 is also provided on the frame 32.
  • the carriage 38 carries the storage vessel 3 and a lifting device 39 for the storage vessel 3.
  • the carriage 38 is designed here as a carriage 38a with wheels 40 and can be moved horizontally.
  • the carriage 38 has a drive in the form of a displacement cylinder 41, the cylinder housing 42 of which is articulated on the carriage guide 43 at 43a.
  • a support 44 is arranged between the drums 5b and 5c (FIG. 4), which is provided with a special contour 45 opposite the smoothing roller 27.
  • the contour 45 has a continuous course which runs continuously but arched above a tangent 46 placed on the drum circumferences (FIG. 2).
  • a moving seal 47 which is adapted to the course of the continuous contour 45 and which projects beyond the thickness 7 of the cast strip 1 and is flexible and is guided in each case via pairs of rollers 48 and 49.
  • the axes 50 of the pairs of rollers 48 and 49 accordingly run perpendicular or obliquely to the horizontal 9.
  • the flexible seal 47 consists of metallic elements 52 forming a flat surface 51 in the operating position.
  • a cooling medium 53 is introduced under pressure between the arched support 44 and the conveyor belt 5.
  • the conveyor belt 5 is also guided laterally in the region of the pouring nozzle 4 by a guide 54 (FIG. 7), to keep wear to the flexible seal 47 low.
  • a cleaning device 55 and a spray device 56 (FIG. 4) are also assigned to the casting-side drum 5b.
  • a pouring chamber 57 (FIG. 4) is formed between the pouring nozzle 4 of the storage container 3, the cooled conveyor belt 5 guided on the support 44, the smoothing roller 27 and the lateral, rotating seal 47, which is formed by an inert gas, e.g. Argon or nitrogen, is fulfilled and is therefore surrounded by a hood 58 (FIG. 5), into which the inert gas enters through a pipeline 59 and flows out through a gap 60 and thus keeps the atmospheric oxygen away from the cast strip 1 during solidification.
  • an inert gas e.g. Argon or nitrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP88730032A 1987-03-12 1988-02-11 Procédé et dispositif pour la coulée de bandes métalliques, en particulier en acier Expired - Lifetime EP0283425B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873707897 DE3707897A1 (de) 1987-03-12 1987-03-12 Verfahren und giessvorrichtung zum giessen von baendern aus metall, insbesondere aus stahl
DE3707897 1987-03-12

Publications (2)

Publication Number Publication Date
EP0283425A1 true EP0283425A1 (fr) 1988-09-21
EP0283425B1 EP0283425B1 (fr) 1990-08-08

Family

ID=6322821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730032A Expired - Lifetime EP0283425B1 (fr) 1987-03-12 1988-02-11 Procédé et dispositif pour la coulée de bandes métalliques, en particulier en acier

Country Status (6)

Country Link
US (1) US4836271A (fr)
EP (1) EP0283425B1 (fr)
JP (1) JPH0761527B2 (fr)
AU (1) AU607970B2 (fr)
BR (1) BR8801084A (fr)
DE (1) DE3707897A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999059750A1 (fr) * 1998-05-19 1999-11-25 Sms Demag Ag Dispositif et procede de coulee de metal, proche des cotes finales

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810302A1 (de) * 1988-03-24 1989-10-12 Mannesmann Ag Giesseinrichtung zur kontinuierlichen herstellung von metallband
DE4039959C1 (fr) * 1990-12-14 1992-01-23 Wieland-Werke Ag, 7900 Ulm, De
CA2096365A1 (fr) * 1992-06-23 1993-12-24 Donald G. Harrington Methode et appareil de coulee continue des metaux
SE508311C2 (sv) * 1995-08-16 1998-09-21 Mannesmann Ag Sätt och anordning för att direktgjuta tunna metallband
JP3132832B2 (ja) * 1996-06-07 2001-02-05 マンネスマン・アクチエンゲゼルシャフト 薄板鋳造設備用の鋳造ノズル
DE19636697C1 (de) * 1996-06-07 1997-08-14 Preussag Stahl Ag Gießdüse für Dünnbandgießanlagen
KR20030085641A (ko) * 2002-04-29 2003-11-07 김학배 비철금속판재의 주조장치
KR20040023119A (ko) * 2002-09-10 2004-03-18 김학배 비철금속판재의 주조장치
DE102009031236B3 (de) * 2009-06-26 2010-12-02 Salzgitter Flachstahl Gmbh Verfahren und Vorrichtung zum Erzeugen von Stahlbändern mittels Bandgießen
CN103286291B (zh) * 2013-05-27 2015-04-29 平湖东创新材料科技有限公司 板材成型设备
CN112843860A (zh) * 2020-12-23 2021-05-28 沧州华润化工有限公司 一种环保节能的镀锌板光整液混合喷淋系统
CN112893789B (zh) * 2021-01-15 2022-08-30 台州学院 一种用于生产半导体材料箔的装置及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467284A (en) * 1967-05-24 1969-09-16 Bethlehem Steel Corp Distributor for continuous casting machine
DE2116870A1 (de) * 1970-04-15 1971-11-04 Prohzenz AG, Chur (Schweiz) Verfahren zum Ingangsetzen einer Maschine mit Raupenkokille zum Band gießen von Nichteisenmetallen und Ma schine zur Durchführung des Verfahrens
US4646812A (en) * 1985-09-20 1987-03-03 Battelle Development Corporation Flow casting

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348178A (en) * 1937-11-03 1944-05-02 Joseph M Merle Method of making metallic products of sheetlike form
JPS57142748A (en) * 1981-02-27 1982-09-03 Hitachi Ltd Molding device for thin plate
ATE70752T1 (de) * 1985-06-19 1992-01-15 Sundwiger Eisen Maschinen Verfahren zum herstellen eines metallstranges, insbesondere in form eines bandes oder profils durch giessen und vorrichtung zur durchfuehrung dieses verfahrens.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467284A (en) * 1967-05-24 1969-09-16 Bethlehem Steel Corp Distributor for continuous casting machine
DE2116870A1 (de) * 1970-04-15 1971-11-04 Prohzenz AG, Chur (Schweiz) Verfahren zum Ingangsetzen einer Maschine mit Raupenkokille zum Band gießen von Nichteisenmetallen und Ma schine zur Durchführung des Verfahrens
US4646812A (en) * 1985-09-20 1987-03-03 Battelle Development Corporation Flow casting

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 157 (M-227)[1302], 9. Juli 1983; & JP-A-58 065 549 (KAWASAKI SEITETSU K.K.) 19-04-1983 *
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 217 (M-245)[1362], 27. September 1983; & JP-A-58 112 638 (SUMITOMO JUKIKAI KOGYO K.K.) 05-07-1983 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 55 (M-362)[1778], 9. März 1985; & JP-A-59 189 044 (KAWASAKI SEITETSU K.K.) 26-10-1984 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 92 (M-373)[1815], 20. April 1985; & JP-A-59 218 244 (FUJIKURA DENSEN K.K.) 08-12-1984 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999059750A1 (fr) * 1998-05-19 1999-11-25 Sms Demag Ag Dispositif et procede de coulee de metal, proche des cotes finales
CZ298804B6 (cs) * 1998-05-19 2008-02-06 Sms Demag Ag Zpusob a zarízení pro odlévání kovu na rozmery blízké finálním

Also Published As

Publication number Publication date
AU1217188A (en) 1988-09-15
EP0283425B1 (fr) 1990-08-08
AU607970B2 (en) 1991-03-21
DE3707897A1 (de) 1988-09-22
BR8801084A (pt) 1988-10-18
JPH01241358A (ja) 1989-09-26
US4836271A (en) 1989-06-06
JPH0761527B2 (ja) 1995-07-05
DE3707897C2 (fr) 1990-07-05

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