EP1227906A1 - Procede pour actionner une machine a coulee en bande pour produire une bande de metal et machine a coulee en bande appropriee - Google Patents

Procede pour actionner une machine a coulee en bande pour produire une bande de metal et machine a coulee en bande appropriee

Info

Publication number
EP1227906A1
EP1227906A1 EP00964203A EP00964203A EP1227906A1 EP 1227906 A1 EP1227906 A1 EP 1227906A1 EP 00964203 A EP00964203 A EP 00964203A EP 00964203 A EP00964203 A EP 00964203A EP 1227906 A1 EP1227906 A1 EP 1227906A1
Authority
EP
European Patent Office
Prior art keywords
casting
sealing plate
casting machine
casting rolls
end faces
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
EP00964203A
Other languages
German (de)
English (en)
Other versions
EP1227906B1 (fr
Inventor
Heinrich A. Marti
Jacques Barb
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.)
Main Management Inspiration AG
SMS Siemag AG
Original Assignee
Main Management Inspiration AG
SMS Demag 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4217691&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1227906(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Main Management Inspiration AG, SMS Demag AG filed Critical Main Management Inspiration AG
Publication of EP1227906A1 publication Critical patent/EP1227906A1/fr
Application granted granted Critical
Publication of EP1227906B1 publication Critical patent/EP1227906B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams
    • 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
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
    • 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

Definitions

  • the invention relates to a method for operating a strip casting machine for producing a metal strip, with two casting rolls arranged side by side, forming a casting gap, and with side seals, each of which has a sealing plate adjoining the casting rolls on both sides of the casting rolls, the contact pressure of the sealing plate on the Casting rolls and / or the friction conditions between them are measured, as well as an associated belt casting machine.
  • the device for the side sealing of the casting rolls consists of refractory sealing plates, which are pressed against two end faces of the casting rolls located on the same side and thereby prevent the between the Poured steel melt can flow away to the side of casting rolls, but rather how a metal bath is created in a conventional mold.
  • These sealing plates are during the contact pressure due to the rotating casters is exposed to frictional wear and this in the event of severe heat exposure from the metal bath. It is therefore one of the main problems with such a casting machine that the side seals offer a secure seal during the entire casting time.
  • the contact state between the sealing walls and the casting rolls is determined by measuring the contact pressure and the friction conditions, and at least one of the casting parameters is adjusted, if necessary, after comparison with setpoints.
  • the closure walls are each held by an arrangement which consists of a main carrier which is displaceable in the axial direction of the rollers and a carrier which is guided horizontally on the main carrier.
  • the present invention was based on the object of creating a method for operating a belt casting machine of the type mentioned at the outset which enables the side seals to be sealed for the entire duration of the casting, and this with the use of an optimal casting roll diameter ,
  • the object is achieved according to the invention in that the sealing plates are positioned to these end faces of the casting rolls in each case less than at a distance of a few tenths of a millimeter or completely against the end faces, without or with the contact pressure, in such a way that even in the heated operating state, the desired positions of the Sealing plates on the end faces of the casting rolls can be held very precisely.
  • FIG. 2 shows a longitudinal section through a side seal according to FIG. 1,
  • FIG. 3 shows a section of the side seal along the line III-III according to FIG. 2,
  • FIG. 4 shows a block diagram of a monitoring system of the side seals with a schematic view and a top view of the side seal
  • FIG. 5 shows a partial longitudinal section through a casting roll.
  • 1 shows a strip casting machine 20 of a metal strip 15 that can be produced in a continuous casting process, in particular a steel strip.
  • This band casting machine 20 stands on an indicated steel structure 12 and is supplied with molten metal from a distributor vessel above it, as is known in conventional continuous casting plants.
  • the distributor vessel expediently has a pouring opening which can be closed with a stopper or the like and through which the melt can flow off.
  • this band casting machine 20 has two casting rolls 22, 24 arranged essentially parallel to one another with an approximately horizontal course of the axis of rotation, a side seal 25 being able to be pressed onto each of the end faces, thereby forming an all-round closed opening with a casting gap which is open towards the bottom.
  • the casting rolls 22, 24 are rotatably supported on both sides on a machine stand 32 and driven by a motor.
  • the band casting machine 20 standing on an indicated steel structure 12 'or the like is enclosed by the housing 30, so that this band casting can be carried out with a protective gas, sealed from the air.
  • Sliding doors 35 are provided on the top of the housing 30 to open or close it.
  • These side seals 25 each have a sealing plate 61 that can be pressed onto the casting rollers 22, 24 on the face side by a pressing means and that produce a mechanical seal.
  • These triangular sealing plates 61 made of a refractory material, cover approximately the upper part of the end faces 22 ', 24' of the casting rolls.
  • the respective sealing plate 61 is arranged such that it can be displaced by the pressing means against the end faces 22 ', 24' of the casting roller and, moreover, via a joint means, in the present case via a spherical joint 81, floating, in order to achieve a constant positioning and an exact parallel arrangement of its sealing surface 61 'to the two end faces of the casting rolls running in one plane.
  • three cylinders 71 each adjustable approximately at right angles to the sealing plate 61, are provided, each with a piston 72, which, in the manner of a three-point support, exert an approximately constant controllable pressure on the respective sealing plate 61 via a support frame 64, 65, these cylinders 71 expediently being the ones due to the Arrange the casters approximately triangular sealing plate 61 each in one of their corner areas.
  • the sealing plates 61 are positioned to these end faces 22 ', 24' of the casting rolls 22, 24 less than at a distance of a few tenths of a millimeter or completely against the end faces 22 ', 24', without or with the contact pressure, in such a way that Even in the heated operating state, the target position of the respective sealing plate on the end faces of the casting rolls can be kept very precisely.
  • the two are optimally adjusted to one another, be it that the sealing plates can be positioned contactlessly with the casting rolls or advantageously against them without or with a contact pressure ,
  • an optimal seal and, on the other hand, the smallest possible wear on the sealing plates and also on the end parts of the casters adjacent to these can be achieved.
  • the support frame 64, 65 receiving the sealing plate 61 is supported by means of articulated connections 66, 67 on a connecting plate 80 which in turn is floating on the support element 41 by the ball joint 81. hold, the support frame 64, 65 is permanently pressed against the piston 72 of the pressing means via an elastic connection, namely an adjustable tension spring 68 with an anchor, between it and the connecting plate 80.
  • the articulated connections are each formed by an approximately horizontal and a vertically arranged articulated lever 66, 67, these articulated levers 66, 67 also being spherically supported at one end on the support frame 64 and at the other end on the connecting plate 80, so that the sealing plate 61 is parallel can move horizontally and vertically to the connecting plate 80.
  • a protruding centering pin 82 is provided at the ball joint 82, by means of which the carrier element 41 can be centered relative to the device 85.
  • An eccentric 83 or the like enables the side seal 25 to be centered vertically relative to the carrier element 41.
  • a flexible holding element 84 is provided between the connecting plate 80 and the head part 41 'of the carrier element 41.
  • a stop screw 86 on this head part 41 ′ limits the swivel range of the plate 80.
  • the carrier element 41 holding the side seals 25 belongs to a manipulator 40, by means of which the respective side seal can be fed in or out laterally to the casting rolls 22, 24.
  • the side seals 25, after they have been fed from the manipulator 40 into the position on the side of the casting rolls 22, 24, are centered by a device 85 arranged on the machine stand 32 of the casting rolls and the cylinder 71 thereof is connected to a respective drive element. In the opposite sense, the side seals 25 can be removed from the manipulator for maintenance after the device 85 has been released.
  • the device 85 is in the Stand 32 arranged; however, it could also be present on the manipulator.
  • a monitoring and control system according to FIG. 4 for these side seals 25 enables the sealing plates 61 to be optimally adjusted to the casting rollers 22, 24, and preventive monitoring and early detection of faults, leaks or the like, with on-line troubleshooting, in particular in the sealing plate.
  • the piston stroke lengths of the cylinders 71 are measured with the measuring members 151, 152, 153 and the positions of the end faces of the cast rollers with the displacement sensors 127, 128, 129 and are likewise passed to a receiver 150 and from there to the evaluation unit 100.
  • the displacement sensors 127, 128, 129 enable the wear and the expansion of the cast rolls to be recorded.
  • three temperature probes 1 1 1, 1 12, 1 13 are provided, by means of which the temperatures at the contact points of the sealing plate 61 with the casting rollers 22, 24 in the end regions of the sealing plates 61 are measured. These temperatures are then recorded by means of a receiver 110 and are preferably compared with a target profile by a central evaluation unit 100. As long as the temperatures at these contact points are lower than those of the melt, normal operation can be assumed. However, as soon as at least one of these temperatures rises disproportionately, leakage between the sealing plate 61 and at least one casting roller 22, 24 must be assumed. The computer 100 then triggers an immediate closure of the stopper in the distributor vessel via a line 101, and from this a flow of melt between the casting rolls is stopped.
  • Another temperature probe 114 is assigned to the holding frame 65 of the sealing plate 61 approximately in the center thereof. The temperature measured there allows conclusions to be drawn about the functionality of this holding frame 65 and in particular about deformations thereof.
  • three pressure measuring cells 121, 122, 123 are provided in the cylinders 71 in this monitoring system. These pressures, which are also advantageously continuously measured at a corresponding receiver 120, can be used, on the one hand, to generate a control of the pressures in the evaluation unit in a comparison with a set course of the cylinder pressures.
  • strain gauges 131, 141 are provided in the case of the articulated levers 66, 67 within the scope of the invention, by means of which and the receivers 130, 140 the force course and therefrom the friction conditions between the sealing plate 61 and the casting rollers 22, 24 are determined.
  • An increase in the coefficient of friction while the contact pressure remains the same may indicate an increased wear of the sealing plate 61, meanwhile a decrease can be inferred from a decrease in the vertical force component and a correction in the sense of an increase in the contact pressure must be made therefrom.
  • the sealing plates 61 which are made of refractory material, are pressed against the end faces 22 ', 24' by the cylinders and ground in before casting on. With the help of these strain gauges 131, 141, the frictional forces between casting rolls and sealing plate can be determined and set to a defined size.
  • a vibrometer 161 can advantageously be mounted between the sealing plate 61 and the holding frame 65 for measuring the vibrations during the casting.
  • an operational malfunction can be quickly determined in the event of a deviation from a target vibration, for example if the vibration strength generated between a casting roll and a casting plate inevitably changes between them.
  • the contact pressure can also be corrected to bring it closer to the desired size.
  • this vibration measurement leads to improved utilization or durability of the sealing plate 61 made of refractory.
  • the values are stored and can thus be stored by the evaluation unit 100 as long-term storage and statistical values can be derived therefrom, which can advantageously be used on-line.
  • the temperature control 110, 100 is based on the controller 106 of the heating device 155 indicated in FIG. side seals available for replacement can influence.
  • the casting roller 22 shows a device for axially displacing and aligning the end faces 22 'of the casting rolls 22 to be sealed relative to one another.
  • the casting roller 22 consists of a stationary axle 1 with axle journal 2, which in turn is supported on a stand 3.
  • the casting roller 22 comprises an annular support element 4 which is connected to the cylindrical jacket 5 by means of a wedge brace 6.
  • the jacket 5 is provided on its circumference with axially extending cooling bores 7, which are connected to further coolant supply and discharge bores 9, 10, 11 in the support element 4, in the axis 1 and in the stator 3.
  • the jacket 5 and the support element 4 are driven by a motor / transmission device, not shown.
  • the jacket 5 is arranged to be displaceable together with the support element 4 on the stationary axis 1.
  • the displacement takes place with an annular, double-acting piston-cylinder unit 13, which is assigned to both the support element 4 and the axis 1 and is installed at the end of the casting roller 22.
  • a piston ring 14 on the support element 4 engages at a distance in a circumferential groove 16 of the axis 1, so that cylinder chambers 17 are formed on both sides of the piston ring 14, each of which is pressurized with a pressure medium via pressure lines p1 and p2.
  • a pressure difference With the help of a pressure difference, an axial displacement of the support element 4 and thus the end face 22 'of the casting roller 22 is effected by a maximum amount, for example of 8 millimeters, to one side or the other.
  • the position of the casting roll in the axial direction is measured by the displacement sensors 127, 128, 129 and in the event of a deviation from one to the other in a control process
  • Casting roll 22, 24 made a correction in the sense that the end faces 22 ', 24' on one or on the other side of the casting rolls are aligned again. This is done by actuating the piston-cylinder unit 13 by means of a valve, not shown.
  • one casting roll is shorter in length than the other due to wear, manufacturing tolerances or the like, e.g. 0.3 mm, these casting rolls are very advantageously positioned on both sides with half the length difference (e.g. 0.15 mm) to each other. This has created an additional effective means of preventing leakages.
  • a side seal 25 could be provided, which includes a mechanical and / or a magnetic seal. To simplify the design of this monitoring system, only one or two measuring elements could be provided instead of three.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Coating With Molten Metal (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Basic Packing Technique (AREA)
  • Induction Machinery (AREA)
EP00964203A 1999-09-24 2000-09-19 Procede pour actionner une machine a coulee en bande pour produire une bande de metal et machine a coulee en bande appropriee Expired - Lifetime EP1227906B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01750/99A CH691574A5 (de) 1999-09-24 1999-09-24 Bandgiessmaschine zur Erzeugung eines Metallbandes.
CH175099 1999-09-24
PCT/EP2000/009159 WO2001023121A1 (fr) 1999-09-24 2000-09-19 Procede pour actionner une machine a coulee en bande pour produire une bande de metal et machine a coulee en bande appropriee

Publications (2)

Publication Number Publication Date
EP1227906A1 true EP1227906A1 (fr) 2002-08-07
EP1227906B1 EP1227906B1 (fr) 2003-05-21

Family

ID=4217691

Family Applications (3)

Application Number Title Priority Date Filing Date
EP99811003A Withdrawn EP1088609A1 (fr) 1999-09-24 1999-11-03 Machine de coulée de bandes pour la production d'une bande métallique
EP00964203A Expired - Lifetime EP1227906B1 (fr) 1999-09-24 2000-09-19 Procede pour actionner une machine a coulee en bande pour produire une bande de metal et machine a coulee en bande appropriee
EP00964204A Expired - Lifetime EP1225992B2 (fr) 1999-09-24 2000-09-19 Machine de coulee en bande pour produire une bande de metal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99811003A Withdrawn EP1088609A1 (fr) 1999-09-24 1999-11-03 Machine de coulée de bandes pour la production d'une bande métallique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00964204A Expired - Lifetime EP1225992B2 (fr) 1999-09-24 2000-09-19 Machine de coulee en bande pour produire une bande de metal

Country Status (11)

Country Link
US (2) US6655447B1 (fr)
EP (3) EP1088609A1 (fr)
KR (2) KR100686518B1 (fr)
CN (2) CN1191897C (fr)
AT (2) ATE240805T1 (fr)
AU (2) AU7520900A (fr)
CH (1) CH691574A5 (fr)
DE (2) DE50002296D1 (fr)
EA (2) EA003382B1 (fr)
ES (2) ES2200937T5 (fr)
WO (2) WO2001023122A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20021505A1 (it) * 2002-07-10 2004-01-12 Danieli Off Mecc Dispositivo di supporto di rulli per colata continua di nastro metallico
ITMI20021853A1 (it) * 2002-08-27 2004-02-28 Danieli Off Mecc Dispositivo di contenimento del bagno metallico tra i
WO2005002757A1 (fr) * 2003-07-01 2005-01-13 Sms Demag Aktiengesellschaft Procede d'exploitation d'une machine de coulee en bande pour produire un feuillard
CH696756A5 (de) 2003-10-08 2007-11-30 Main Man Inspiration Ag Verfahren zum Erzeugen von oszillierenden Bewegungen an Seitenabdichtungen einer Bandgiessmaschine für die Erzeugung eines Metallbandes sowie eine Vorrichtung zum Durchführen des Verfahrens.
CN1329146C (zh) * 2005-01-31 2007-08-01 宝山钢铁股份有限公司 薄带连铸粘辊在线预报方法
CN100368120C (zh) * 2005-12-02 2008-02-13 重庆大学 双辊连铸镁合金薄带浇铸装置
KR100797240B1 (ko) * 2006-12-27 2008-01-23 주식회사 포스코 스트립캐스팅 공정에서 스트립 웨지 제어방법
DE102008010653B4 (de) * 2008-02-22 2019-04-04 Outokumpu Nirosta Gmbh Verfahren und Zwei-Walzen-Gießmaschine zum Herstellen von aus einer Metallschmelze gegossenem Band
US7888158B1 (en) 2009-07-21 2011-02-15 Sears Jr James B System and method for making a photovoltaic unit
KR101264232B1 (ko) * 2009-12-28 2013-05-14 주식회사 포스코 쌍롤식 박판 주조기의 에지댐 수평 진동 제어 장치 및 그 제어 방법
WO2018031823A1 (fr) 2016-08-10 2018-02-15 Nucor Corporation Procédé de coulée de bandes minces
CN110087800B (zh) * 2016-12-26 2022-02-15 宝山钢铁股份有限公司 双辊薄带连铸侧封板的安装装置及其安装方法
CN111036865B (zh) * 2020-01-10 2024-04-30 中冶赛迪技术研究中心有限公司 一种电液直驱小方坯连铸结晶器振动驱动装置

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JPS6015051A (ja) 1983-07-08 1985-01-25 Nippon Kokan Kk <Nkk> 金属板の連続鋳造装置
JPS6083754A (ja) * 1983-10-14 1985-05-13 Ishikawajima Harima Heavy Ind Co Ltd 双ロ−ル式連続鋳造機
JPH03114633A (ja) 1989-09-28 1991-05-15 Kawasaki Steel Corp ベルト式連続鋳造方法
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Also Published As

Publication number Publication date
CN1376097A (zh) 2002-10-23
KR100741729B1 (ko) 2007-07-24
EP1225992B1 (fr) 2003-05-21
DE50002296D1 (de) 2003-06-26
EA003383B1 (ru) 2003-04-24
KR20020063864A (ko) 2002-08-05
CN1376095A (zh) 2002-10-23
EP1225992A1 (fr) 2002-07-31
ES2200937T5 (es) 2007-05-01
ATE240805T1 (de) 2003-06-15
EP1088609A1 (fr) 2001-04-04
KR20020063863A (ko) 2002-08-05
US6655447B1 (en) 2003-12-02
ES2200936T3 (es) 2004-03-16
EP1227906B1 (fr) 2003-05-21
AU7521000A (en) 2001-04-30
US6651729B1 (en) 2003-11-25
AU7520900A (en) 2001-04-30
EP1225992B2 (fr) 2006-09-13
WO2001023121A1 (fr) 2001-04-05
WO2001023122A1 (fr) 2001-04-05
ATE240806T1 (de) 2003-06-15
CN1191897C (zh) 2005-03-09
EA200200399A1 (ru) 2002-10-31
KR100686518B1 (ko) 2007-02-23
ES2200937T3 (es) 2004-03-16
EA200200398A1 (ru) 2002-10-31
CN1200786C (zh) 2005-05-11
EA003382B1 (ru) 2003-04-24
CH691574A5 (de) 2001-08-31
DE50002302D1 (de) 2003-06-26

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