EP0031133A1 - Device for oscillating a continuous casting mould - Google Patents

Device for oscillating a continuous casting mould Download PDF

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Publication number
EP0031133A1
EP0031133A1 EP80107964A EP80107964A EP0031133A1 EP 0031133 A1 EP0031133 A1 EP 0031133A1 EP 80107964 A EP80107964 A EP 80107964A EP 80107964 A EP80107964 A EP 80107964A EP 0031133 A1 EP0031133 A1 EP 0031133A1
Authority
EP
European Patent Office
Prior art keywords
mold
oscillation
mold table
bearing
oscillating
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
EP80107964A
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German (de)
French (fr)
Other versions
EP0031133B1 (en
Inventor
Kawakami Takashi
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SMS Concast AG
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Concast Holding AG
Concast AG
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Publication date
Application filed by Concast Holding AG, Concast AG filed Critical Concast Holding AG
Priority to AT80107964T priority Critical patent/ATE2487T1/en
Publication of EP0031133A1 publication Critical patent/EP0031133A1/en
Application granted granted Critical
Publication of EP0031133B1 publication Critical patent/EP0031133B1/en
Expired legal-status Critical Current

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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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds

Definitions

  • the invention relates to a device for oscillating a continuous casting mold with at least one oscillation lever both mounted on a bearing block and articulated on a guided mold table that carries the mold.
  • a known oscillation device (US Pat. No. 3,822,738) has one or two short oscillation levers which are pivotably mounted on a bearing block. These levers are also articulated on a mold table on which a mold is mounted. The short oscillation levers are moved around their bearing points in the bearing block via an oscillation drive and a lifting rod.
  • This object is achieved in that a force device which compensates for the bearing play is arranged between the bearing block and the mold table.
  • a driven eccentric 1 acts with a lifting rod 2 on a lever 3 which, like another lever 5, is rotatably mounted in a bearing block 4.
  • Each of the two levers 3 and 5 is rigidly provided with an axis 8, which are articulated on two sides in bearings on the mold table.
  • a mold 6 for casting a steel slab 11 is mounted on the mold table.
  • the mold table 7 and the mold 6 are carried by the lower lever 3 and the upper lever 5 is used for guidance during the oscillation movement.
  • the two levers 3 and 5 each engage on both sides of the mold table. Instead of the lever 5, the mold table can be guided on a sliding guide.
  • a power device in the form of a pressure cylinder 10 articulated, which extends approximately parallel to the levers 3 and 5.
  • Two pressure medium cylinders each mounted on one side of the mold table, can also be arranged.
  • a compressive force is exerted on the mold table 7 in this example. Therefore, the axes 8 are always pressed in the bearing points in the defined direction during the oscillation movement, thereby compensating for the bearing play. This ensures an accurate, even at higher oscillation speeds. Vibration-free oscillation movement of the mold 6 in the pull-out direction is made possible and thus an improvement in the surface quality of the strand 11 is achieved.
  • the weight of the mold table 7 on the upper side of the axis 8 would be effective at a low oscillation speed, and with a bearing play of, for example, 0.05-0.2 mm, a quiet oscillation movement along a predetermined circular arc would be possible.
  • the weight of the mold table plus mold no longer acts on the top of the axis 8 and the pressed surfaces of the axes 8 would be shifted to the right and left, causing the mold table to vibrate with the disadvantageous consequences.
  • a tensile force applied by the cylinder 10 can also be used.
  • a spring could also be used instead of the hydraulic cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Soil Working Implements (AREA)

Abstract

A continuous casting mold for casting strands is mounted in a mold table or other suitable mold mounting arrangement and is ocsillated by means of oscillation levers. The oscillation levers are mounted both at the mold table and also at a bearing block. To compensate the bearing play arising at the bearing locations a power or force-applying device is provided between the mold table and the bearing block.

Description

Die Erfindung betrifft eine Vorrichtung zum Oszillieren einer Stranggiesskokille mit mindestens einem sowohl an einem Lagerbock gelagerten als auch an einem die Kokille tragenden geführten Kokillentisch angelenkten Oszillationshebel.The invention relates to a device for oscillating a continuous casting mold with at least one oscillation lever both mounted on a bearing block and articulated on a guided mold table that carries the mold.

Es ist allgemein bekannt, eine Kokille entlang eines Kreisbogens zu oszillieren, um ein Kleben zwischen der formgebenden Kokillenwandung und dem in der Kokille gebildeten Strang zu vermeiden, die Oberflächengüte des Stranges zu verbessern und Durchbrüche zu verhindern.It is generally known to oscillate a mold along a circular arc in order to avoid sticking between the mold wall and the strand formed in the mold, to improve the surface quality of the strand and to prevent breakthroughs.

Eine bekannte Oszillationsvorrichtung (US-PS 3'822'738) weist einen oder zwei kurze Oszillationshebel auf, die an einem Lagerbock schwenkbar gelagert sind. Diese Hebel sind weiter an einem Kokillentisch angelenkt, auf dem eine Kokille montiert ist. Ueber einen Oszillationsantrieb und eine Hubstange werden die kurzen Oszillationshebel um ihre Lagerstellen im Lagerbock bewegt.A known oscillation device (US Pat. No. 3,822,738) has one or two short oscillation levers which are pivotably mounted on a bearing block. These levers are also articulated on a mold table on which a mold is mounted. The short oscillation levers are moved around their bearing points in the bearing block via an oscillation drive and a lifting rod.

Beim Oszillieren von Kokillen zum Giessen von Brammen, insbesondere mit hoher Geschwindigkeit von etwa über 100 Hüben pro Minute, kommt es durch die hohen Trägheitskräfte und das vorhandene Lagerspiel an den Lagerstellen am Kokillentisch zu Vibrationen im oszillierten System. Dies führt zu einer Verschlechterung der Gussqualität.When oscillating molds for casting slabs, especially at high speeds of over 100 strokes per minute, the high inertia forces and the bearing play at the bearing points on the mold table cause vibrations in the oscillated system. This leads to a deterioration in the casting quality.

Eine weitere bekannte Oszillationsvorrichtung ist in US-PS 3'343'592 beschrieben. Auch dort können Vibrationen während des Giessens eines Stranges auftreten.Another known oscillation device is described in US Pat. No. 3,343,592. There, too, vibrations can occur during the casting of a strand.

Es ist Aufgabe der Erfindung, eine genaue und vibrationsfreie Oszillationsbewegung auch bei höheren Oszillationsgeschwindigkeiten sicherzustellen.It is an object of the invention to ensure an accurate and vibration-free oscillation movement even at higher oscillation speeds.

Diese Aufgabe wird dadurch gelöst, dass zwischen dem Lagerbock und dem Kokillentisch ein das Lagerspiel kompensierendes Kraftgerät angeordnet ist.This object is achieved in that a force device which compensates for the bearing play is arranged between the bearing block and the mold table.

Damit werden Druck- oder Zugkräfte aufgebracht, die in den Lagerstellen das Lagerspiel kompensieren, indem die in den Lagern schwenkbar gelagerten Achsen der Oszillationshebel auch unter Berücksichtigung des Gewichtes von Kokillentisch und Kokille in definierter Richtung gepresst werden. Auch bei den hohen Trägheitskräften, die bei grossen Oszillationsgeschwindigkeiten von mehr als etwa 100 Hüben pro Minute auftreten, werden Vibrationen im oszillierenden System verhindert und somit ein ruhiger Lauf und gute Qualität des Gussproduktes sichergestellt.This applies compressive or tensile forces that compensate for the bearing play in the bearing points by pressing the pivoting axles of the oscillation levers in the bearings, taking into account the weight of the mold table and mold in a defined direction. Even with the high inertial forces that occur at high oscillation speeds of more than about 100 strokes per minute, vibrations in the oscillating system are prevented, thus ensuring smooth running and good quality of the cast product.

Die Erfindung wird anhand einer Figur näher erläutert. Ein angetriebener Exzenter 1 wirktmit einer Hubstange 2 auf einen Hebel 3, der, wie auch ein weiterer Hebel 5, in einem Lagerbock 4 drehbar gelagert ist. Jeder der beiden Hebel 3 und 5 ist starr mit je einer Achse 8 versehen, die zweiseitig in Lagern am Kokillentisch gelenkig geführt sind. Auf dem Kokillentisch ist eine Kokille 6 zum Giessen einer Stahlbramme 11 montiert. Der Kokillentisch 7 und die Kokille 6 werden durch den unteren Hebel 3 getragen und der obere Hebel 5 dient zur Führung während der Oszillationsbewegung. Die beiden Hebel 3 und 5 greifen je beidseitig des Kokillentisches an. An Stelle des Hebel 5 kann der Kokillentisch an einer Gleitführung geführt werden. Erfindungsgemäss ist zwischen dem Lagerbock 4 und dem Kokillentisch 7 in der Mitte des Kokillentisches ein Kraftgerät in Form eines Druckmittelzylinders 10 gelenkig angeordnet, der sich etwa parallel zu den Hebeln 3 und 5 erstreckt. Es können auch zwei je auf einer Seite des Kokillentisches angebrachte Druckmittelzylinder angeordnet sein. Mit diesem Zylinder 10 wird bei diesem Beispiel eine Druckkraft auf den Kokillentisch 7 ausgeübt. Daher werden die Achsen 8 während der Oszillationsbewegung in den Lagerstellen stets in definierter Richtung gepresst und dadurch das Lagerspiel kompensiert. Dadurch wird auch bei höheren Oszillationsgeschwindigkeiten eine genaue,. vibrationsfreie Oszillationsbewegung der Kokille 6 in Aus- .ziehrichtung ermöglicht und damit eine Verbesserung der Oberflächengüte des Stranges 11 erzielt.The invention is illustrated by a figure. A driven eccentric 1 acts with a lifting rod 2 on a lever 3 which, like another lever 5, is rotatably mounted in a bearing block 4. Each of the two levers 3 and 5 is rigidly provided with an axis 8, which are articulated on two sides in bearings on the mold table. A mold 6 for casting a steel slab 11 is mounted on the mold table. The mold table 7 and the mold 6 are carried by the lower lever 3 and the upper lever 5 is used for guidance during the oscillation movement. The two levers 3 and 5 each engage on both sides of the mold table. Instead of the lever 5, the mold table can be guided on a sliding guide. According to the invention between the bearing block 4 and the Ko kill table 7 in the middle of the mold table a power device in the form of a pressure cylinder 10 articulated, which extends approximately parallel to the levers 3 and 5. Two pressure medium cylinders, each mounted on one side of the mold table, can also be arranged. With this cylinder 10, a compressive force is exerted on the mold table 7 in this example. Therefore, the axes 8 are always pressed in the bearing points in the defined direction during the oscillation movement, thereby compensating for the bearing play. This ensures an accurate, even at higher oscillation speeds. Vibration-free oscillation movement of the mold 6 in the pull-out direction is made possible and thus an improvement in the surface quality of the strand 11 is achieved.

Ohne die Anordnung dieses erfindungsgemässen Zylinders 10 würde bei niedriger Oszillationsgeschwindigkeit das Gewicht des Kokillentisches 7 auf die Oberseite der Achse 8 wirksam und bei einem Lagerspiel von beispielsweise 0,05 - 0,2 mm wäre eine ruhige Oszillationsbewegung entlang eines vorgegebenen Kreisbogens möglich. Bei höheren Oszillationsgeschwindigkeiten wirkt jedoch das Gewicht des Kokillentisches plus Kokille nicht mehr auf der Oberseite der Achse 8 und die gepressten Flächen der Achsen 8 würden nach rechts und links verschoben werden, wodurch eine Vibration des Kokillentisches mit den nachteiligen Folgen verursacht wird.Without the arrangement of this cylinder 10 according to the invention, the weight of the mold table 7 on the upper side of the axis 8 would be effective at a low oscillation speed, and with a bearing play of, for example, 0.05-0.2 mm, a quiet oscillation movement along a predetermined circular arc would be possible. At higher oscillation speeds, however, the weight of the mold table plus mold no longer acts on the top of the axis 8 and the pressed surfaces of the axes 8 would be shifted to the right and left, causing the mold table to vibrate with the disadvantageous consequences.

Anstelle der hier im Beispiel angewendeten Druckkraft kann auch eine Zugkraft, aufgebracht durch den Zylinder 10, Verwendung finden. Anstelle des Hydraulikzylinders könnte auch eine Feder verwendet werden.Instead of the compressive force used here in the example, a tensile force applied by the cylinder 10 can also be used. A spring could also be used instead of the hydraulic cylinder.

Claims (1)

1. Vorrichtung zum Oszillieren einer Stranggiesskokille mit mindestens einem sowohl an einem Lagerbock (4) gelagerten als auch an einem die Kokille (6) tragenden geführten Kokillentisch (7) angelenkten Oszillationshebel (3, 5), dadurch gekennzeichnet, dass zwischen dem Lagerbock (4) und dem Kokillentisch (7) ein das Lagerspiel.kompensierendes Kraftgerät (10) angeordnet ist.1. An apparatus for oscillating a continuous casting mold with at least one oscillation lever (3, 5) mounted both on a bearing block (4) and on a guided mold table (7) carrying the mold (6), characterized in that between the bearing block (4 ) and the mold table (7) is arranged a bearing device compensating power device (10).
EP80107964A 1979-12-19 1980-12-17 Device for oscillating a continuous casting mould Expired EP0031133B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80107964T ATE2487T1 (en) 1979-12-19 1980-12-17 DEVICE FOR OSCILLATING A CONTINUOUS CASTING MOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17588579 1979-12-19
JP175885/79 1979-12-19

Publications (2)

Publication Number Publication Date
EP0031133A1 true EP0031133A1 (en) 1981-07-01
EP0031133B1 EP0031133B1 (en) 1983-02-16

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ID=16003911

Family Applications (1)

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EP80107964A Expired EP0031133B1 (en) 1979-12-19 1980-12-17 Device for oscillating a continuous casting mould

Country Status (4)

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US (1) US4456052A (en)
EP (1) EP0031133B1 (en)
AT (1) ATE2487T1 (en)
DE (1) DE3062086D1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121622A1 (en) * 1983-03-07 1984-10-17 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Method of and apparatus for continuous casting by the use of mold oscillating system
US4480678A (en) * 1981-08-10 1984-11-06 Fives-Cail Babcock Apparatus for controlling and guiding oscillations of a continuous casting mold
FR2606305A3 (en) * 1986-11-10 1988-05-13 Siderurgie Fse Inst Rech Method and device for balancing a continuous-casting ingot mould
EP0325931A1 (en) * 1988-01-28 1989-08-02 Clecim Method and apparatus for the oscillation of a continuous-casting mould
WO1996002338A1 (en) * 1994-07-20 1996-02-01 Sms Concast Inc. Mold oscillator for continuous casting apparatus
WO1997026099A1 (en) * 1996-01-18 1997-07-24 Paul Wurth S.A. Oscillator for continuous casting die

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219029A (en) * 1992-03-09 1993-06-15 Gunther Behrends Oscillator for continuous casting mold
DE102008010689B4 (en) 2008-02-22 2018-10-31 Outokumpu Nirosta Gmbh Two-roll casting machine for producing cast from a molten metal strip
CN115007829A (en) * 2022-06-14 2022-09-06 济南平阴天宫铸造有限公司 Be used for as cast pressure boost casting equipment of furnace frame

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE554126A (en) *
GB881455A (en) * 1958-03-28 1961-11-01 British Iron Steel Research Improvements in or relating to the continuous casting of metals
AT293650B (en) * 1969-08-04 1971-10-25 Ural Zd Tyazhelogo Mash Im S O Oscillating device for the mold of a continuous metal casting plant
DE1608075B1 (en) * 1967-03-06 1972-04-27 Mesta Machine Co Storage and oscillation device for a continuous casting mold
AT316038B (en) * 1972-02-07 1974-06-25 Concast Ag Device for guiding an oscillating continuous casting mold in a continuous caster with a curved strand axis
US3822738A (en) * 1972-02-01 1974-07-09 Concast Ag Apparatus for guiding an oscillating continuous casting mold at a continuous casting installation with curved path of travel of the strand
DE2546689A1 (en) * 1974-10-17 1976-04-29 Fives Cail Babcock DEVICE FOR EXCITING A CONTINUOUS CASTING CLOTH WITH A CURVED TRIGGER TO A VIBRATING MOVEMENT

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
LU40592A1 (en) * 1960-10-20 1961-11-13
US3258815A (en) * 1963-05-03 1966-07-05 Koppers Co Inc Continuous casting machine
US3664409A (en) * 1969-08-08 1972-05-23 Kolomeitsev Adolf P Mold rocking mechanism in a continuous metal casting plant
US3638714A (en) * 1970-08-14 1972-02-01 Koppers Co Inc Method and apparatus for oscillating a continuous casting mold
AT328120B (en) * 1973-06-09 1976-03-10 Schloemann Siemag Ag CONTINUOUS CASTING PLANT WITH A CHILL CARRIAGE SWIVELING OUT OF THE CASTING POSITION
FR2294005A1 (en) * 1975-12-11 1976-07-09 Danieli Off Mecc Continuous casting mould oscillator - for rectilinear and curvilinear movement
CH633204A5 (en) * 1978-10-27 1982-11-30 Concast Ag STEEL CASTING SYSTEM FOR STEEL WITH OSCILLATING CONTINUOUS CHOCOLATE.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE554126A (en) *
GB881455A (en) * 1958-03-28 1961-11-01 British Iron Steel Research Improvements in or relating to the continuous casting of metals
DE1608075B1 (en) * 1967-03-06 1972-04-27 Mesta Machine Co Storage and oscillation device for a continuous casting mold
AT293650B (en) * 1969-08-04 1971-10-25 Ural Zd Tyazhelogo Mash Im S O Oscillating device for the mold of a continuous metal casting plant
US3822738A (en) * 1972-02-01 1974-07-09 Concast Ag Apparatus for guiding an oscillating continuous casting mold at a continuous casting installation with curved path of travel of the strand
AT316038B (en) * 1972-02-07 1974-06-25 Concast Ag Device for guiding an oscillating continuous casting mold in a continuous caster with a curved strand axis
DE2546689A1 (en) * 1974-10-17 1976-04-29 Fives Cail Babcock DEVICE FOR EXCITING A CONTINUOUS CASTING CLOTH WITH A CURVED TRIGGER TO A VIBRATING MOVEMENT

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480678A (en) * 1981-08-10 1984-11-06 Fives-Cail Babcock Apparatus for controlling and guiding oscillations of a continuous casting mold
EP0121622A1 (en) * 1983-03-07 1984-10-17 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Method of and apparatus for continuous casting by the use of mold oscillating system
FR2606305A3 (en) * 1986-11-10 1988-05-13 Siderurgie Fse Inst Rech Method and device for balancing a continuous-casting ingot mould
EP0325931A1 (en) * 1988-01-28 1989-08-02 Clecim Method and apparatus for the oscillation of a continuous-casting mould
WO1996002338A1 (en) * 1994-07-20 1996-02-01 Sms Concast Inc. Mold oscillator for continuous casting apparatus
GB2305625A (en) * 1994-07-20 1997-04-16 Sms Concast Inc Mold oscillator for continuous casting apparatus
GB2305625B (en) * 1994-07-20 1997-09-03 Sms Concast Inc Mold oscillator for continuous casting apparatus
CN1047742C (en) * 1994-07-20 1999-12-29 Sms康卡斯特有限公司 Mold oscillator for continuous casting apparatus
WO1997026099A1 (en) * 1996-01-18 1997-07-24 Paul Wurth S.A. Oscillator for continuous casting die
US6167940B1 (en) 1996-01-18 2001-01-02 Paul Wurth, S.A. Continuous casting device

Also Published As

Publication number Publication date
EP0031133B1 (en) 1983-02-16
US4456052A (en) 1984-06-26
DE3062086D1 (en) 1983-03-24
ATE2487T1 (en) 1983-03-15

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