EP1103321A1 - Configuration des rayons d'un système de guidage de barres de coulée pour installation de coulée continue verticale-courbe - Google Patents

Configuration des rayons d'un système de guidage de barres de coulée pour installation de coulée continue verticale-courbe Download PDF

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Publication number
EP1103321A1
EP1103321A1 EP00123616A EP00123616A EP1103321A1 EP 1103321 A1 EP1103321 A1 EP 1103321A1 EP 00123616 A EP00123616 A EP 00123616A EP 00123616 A EP00123616 A EP 00123616A EP 1103321 A1 EP1103321 A1 EP 1103321A1
Authority
EP
European Patent Office
Prior art keywords
zone
bending
radius
transition
configuration according
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
EP00123616A
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German (de)
English (en)
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EP1103321B1 (fr
Inventor
Werner Dr. Rahmfeld
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1103321A1 publication Critical patent/EP1103321A1/fr
Application granted granted Critical
Publication of EP1103321B1 publication Critical patent/EP1103321B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the invention relates to a radius configuration of the strand guide through Reconstruction of a vertical bending continuous casting system from a circular arc system with a straight mold and one of the vertical turning lines upstream vertical line and downstream horizontal line, comprising a turn zone; a transition straightening zone; a major radius guide zone; a transition final straightening zone.
  • Circular arc continuous casting plants with arc molds have long been known and were carried out worldwide. With the tendency to develop thin slab caster with thin slab dimensions between 20 and 150 mm thick and up to 3500 mm wide there was a considerably greater risk that impurities such as slag and gas bubbles introduced with the pouring jet are introduced into the liquid core of the strand and no longer float to the water level. Also the further economically interesting improvement of continuous casting processes with increased casting speed is one Danger to the purity of the cast product.
  • the conversion should be done in such a way that: the corresponding dimensions when replacing the conventional sheet casting machine and the adjustment to the continuous casting machine can be retained.
  • the document DE-AS 1 433 022 describes a method and an apparatus for the continuous casting of metal, in which the strand with a liquid core in the Horizontal is bent and straightened, straightening done gradually.
  • the process uses the rollers used for gradual straightening. This means that the large ones that result from leveling with liquid cores Stresses in the solidified edge zone are reduced and the overall height of Investments reduced.
  • Document EP 0 934 786 A1 describes a process for the continuous casting of metal and a continuous casting installation provided for this purpose with a straight, vertically aligned mold and subsequent removal of the straight strand formed in the mold.
  • the straight strand is first bent in a bending zone along a transition curve in a circular arc shape with a radius R end, guided end along a circular arc guide with a radius R and then straightened in a Endrichtzone along a transition curve and then discharged via an approximately horizontal straight guide.
  • the straight strand emerging from the straight mold is bent in at least one bending zone along a transition curve into a circular arc shape having a first small radius R min , in at least one downstream direction zone along a transition curve into a circular arc shape with a larger second radius R end than the first radius , which second radius R end preferably corresponds to that of the circular arc shape of an originally existing continuous casting installation with an arc mold.
  • Document AT No. 373 518 discloses a strand guide for a continuous caster for the continuous casting of molten metal.
  • the strand guide should be designed so that the roles of a following a transition curve Strand guide section less stressed by the springback of the strand are than before, and that the pulling forces for the strand are reduced.
  • the curvature of the transition curve in its end region is larger than that Curvature of the strand guide section following the transition curve.
  • the curvature of the transition curve in its end region is preferably around that Dimension of the elastic portion of the deformation chosen larger than the curvature of the strand guide section following the transition curve, so that the Strand after leaving the strand guide section with the transition curve has exactly that curvature that the following strand guide section has its initial part.
  • the object of the invention based on a radius configuration of the strand guide by rebuilding a vertical bending continuous casting system with a straight mold and one vertical upstream of the vertical turning path Specify the route and the subordinate horizontal route, whose Vertical turning path using parts as far as possible or elements and / or modules of the strand guide to be converted with arc mold with almost unchanged overall height and orientation of the continuous casting machine can be made for the tundish in the unchanged hall building, namely with strict observance of the maximum permissible elongation or compression values the strand shell in all areas of curvature of the strand guide, as well as in a type suitable for increasing the casting speed.
  • the turning zone with at least a first area comparatively more intensive turning and with a subsequent second area is designed to be comparatively gentler, with the strand guide in the first area, starting from the infinite radius of the vertical path, with a curvature from a sequence of continuously decreasing radii R1 i and in the second, adjacent area with one compared to the first area less intense curvature (R2 i ) is bent and that the transition directional zone, which forms the transition between the bending zone and the main radius guide zone, has a constant curvature with increasing length of the radii AR forming it.
  • the modified strand guide With the construction of the modified strand guide according to the invention, that in the area of intense turning, where there is a curve with of the infinite radius of the straight line and continuously smaller radii is bent, the inner deformation of the still soft strand shell to the individual bending points do not exceed the maximum permissible value of 0.25%, and that in the area of the gentle turn, where the strand shell undergoes minor bending deformations, the strand shell undergoes a recovery phase passes through, at the bending points strand shell expansions up to a maximum 0.02% will be allowed.
  • the clothoid-shaped configuration of the bending areas is particularly advantageous Bending zone and the clothoid formation of the transition straightening zone.
  • the transition final straightening zone advantageously follows the shape of a clothoid or is like the bending areas of the bending zone or the transition straightening zone part of one Clothoid.
  • the figure shows an embodiment of the radius configuration of the strand guide a vertical bending continuous casting system that was created by conversion from a circular arc system.
  • This comprises a straight mold 1 with one of the vertical bending sections 2 upstream vertical route 3 and with a subordinate horizontal route 4, comprising a turning zone 5, 6; a transition straightening zone 7; a Main radius guide zone 8; and a transition final straightening zone 9.
  • the turning zone is formed with a first region 5, which is comparatively more intensive, and with a subsequent second region 6, which is comparatively more gentle.
  • the strand guide is curved in the first area 5, starting from the infinite radius of the vertical path 3, with a curvature from a sequence of continuously decreasing radii R1 i and in the second, adjoining area 6 with a curvature R2 i that is comparatively less intensive than the first area 5 .
  • the clothoid from the straight vertical path 3 with a continuously increasing curvature 5 initially passes into the area 6 with a gentler curvature and then for a tangential transition from the last radius R2 i of the area 6 into the main radius guide zone 8 with the Radius R end, the transition straightening zone 7 is provided, the radius ⁇ R of which increases continuously up to the main radius R end .
  • the radius configuration is chosen so that the inner deformation of the strand shell at successive bend points with increasingly smaller radii in the first area 5 of the turning zone 5, 6 the maximum permissible value of Does not exceed 0.25%.
  • the strain on the strand shell is due to the invention selected radius configuration minimized.
  • a continuation of the radius configuration to the main radius guide zone 8 provides that are provided endlessly to R in the bending sector 9 constantly lengthening radii through which the bending sector 9 is bent continuously to the transition in the horizontal Strekke. 4
  • An essential embodiment of the radius configuration according to the invention is characterized in that the main part of the vertical turning section 2 Main radius guide zone 8 from a partially shortened otherwise part of the rebuilt unchanged in terms of design and radii of curvature Circular arc system exists.
  • Circular arc systems are therefore not only material and labor costs saved, but the conversion time is significantly reduced and thereby the costs The operational downtime drastically reduces what the economy of the remodeling benefits.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Paper (AREA)
EP00123616A 1999-11-24 2000-10-28 Système de guidage de barres de coulée pour installation de coulée continue verticale-courbe Expired - Lifetime EP1103321B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19956556 1999-11-24
DE19956556A DE19956556A1 (de) 1999-11-24 1999-11-24 Radien-Konfiguration der Strangführung einer Vertikalabbiege-Stranggießanlage

Publications (2)

Publication Number Publication Date
EP1103321A1 true EP1103321A1 (fr) 2001-05-30
EP1103321B1 EP1103321B1 (fr) 2005-03-30

Family

ID=7930185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00123616A Expired - Lifetime EP1103321B1 (fr) 1999-11-24 2000-10-28 Système de guidage de barres de coulée pour installation de coulée continue verticale-courbe

Country Status (5)

Country Link
US (1) US6607021B1 (fr)
EP (1) EP1103321B1 (fr)
JP (1) JP5161406B2 (fr)
AT (1) ATE291979T1 (fr)
DE (2) DE19956556A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2893993A1 (fr) * 2013-11-29 2015-07-15 SMS Siemag AG Installation de tronçons de coulée et procédé de coulée d'une barre métallique
CN106111930A (zh) * 2016-06-21 2016-11-16 燕山大学 一种全程连续弯曲连续矫直的直弧型连铸机机型曲线

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7290421B2 (en) * 2003-07-01 2007-11-06 General Motors Corporation Variable curvature tube and draw die therefor
US20110101630A1 (en) * 2009-11-04 2011-05-05 Tadashi Sakai Bend shape for anti-roll bar
JP5746803B2 (ja) * 2012-04-06 2015-07-08 日立建機株式会社 掘削バケット
CN117380916B (zh) * 2023-12-08 2024-02-23 成都利华强磁浮连铸科技有限责任公司 一种磁悬浮连铸系统及磁悬浮连铸方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290741A (en) * 1960-11-18 1966-12-13 Olsson Erik Allan Methods of bending casting in a continuous casting process
DE1433022A1 (de) * 1961-05-04 1968-10-17 Moossche Eisenwerke Ag Verfahren und Vorrichtung zum Stranggiessen
US3893503A (en) * 1973-07-24 1975-07-08 Voest Ag Continuous casting plant
AT373518B (de) * 1982-05-18 1984-01-25 Voest Alpine Ag Strangfuehrung fuer eine stranggiessanlage zum kontinuierlichen giessen von metallschmelze
EP0934786A1 (fr) * 1998-11-06 1999-08-11 Voest-Alpine Industrieanlagenbau Gmbh Procédé pour la coulée continue de metal et installation de coulée continue appropriée

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5180624A (en) * 1975-01-13 1976-07-14 Nippon Kokan Kk Haganenorenzokuchuzoho oyobi sonosochi
DE3011137C2 (de) * 1980-03-22 1988-03-24 Mannesmann AG, 4000 Düsseldorf Verfahren zum Regeln der Einzelantriebe einer Bogenstranggieß-Vielrollenmaschine für Stahl
JPS5719144A (en) * 1980-07-10 1982-02-01 Nippon Steel Corp Conveying method for high-temperature ingot
US4953614A (en) * 1987-04-09 1990-09-04 Herbert Lemper Modular continuous caster
JP3091814B2 (ja) * 1994-02-16 2000-09-25 新日本製鐵株式会社 型式変更容易な連続鋳造機
DE19639297C2 (de) * 1996-09-25 2000-02-03 Schloemann Siemag Ag Verfahren und Vorrichtung für Hochgeschwindigkeits-Stranggießanlagen mit einer Strangdickenreduktion während der Erstarrung
GB9719318D0 (en) * 1997-09-12 1997-11-12 Kvaerner Clecim Cont Casting Improvements in and relating to casting
JP4057118B2 (ja) * 1997-12-17 2008-03-05 エス・エム・エス・デマーク・アクチエンゲゼルシャフト 連続鋳造設備で薄スラブを製造する方法およびこの方法を実施するための連続体鋳造設備

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290741A (en) * 1960-11-18 1966-12-13 Olsson Erik Allan Methods of bending casting in a continuous casting process
DE1433022A1 (de) * 1961-05-04 1968-10-17 Moossche Eisenwerke Ag Verfahren und Vorrichtung zum Stranggiessen
US3893503A (en) * 1973-07-24 1975-07-08 Voest Ag Continuous casting plant
AT373518B (de) * 1982-05-18 1984-01-25 Voest Alpine Ag Strangfuehrung fuer eine stranggiessanlage zum kontinuierlichen giessen von metallschmelze
EP0934786A1 (fr) * 1998-11-06 1999-08-11 Voest-Alpine Industrieanlagenbau Gmbh Procédé pour la coulée continue de metal et installation de coulée continue appropriée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2893993A1 (fr) * 2013-11-29 2015-07-15 SMS Siemag AG Installation de tronçons de coulée et procédé de coulée d'une barre métallique
CN106111930A (zh) * 2016-06-21 2016-11-16 燕山大学 一种全程连续弯曲连续矫直的直弧型连铸机机型曲线

Also Published As

Publication number Publication date
EP1103321B1 (fr) 2005-03-30
US6607021B1 (en) 2003-08-19
DE19956556A1 (de) 2001-05-31
ATE291979T1 (de) 2005-04-15
DE50009906D1 (de) 2005-05-04
JP2001179410A (ja) 2001-07-03
JP5161406B2 (ja) 2013-03-13

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