EP0934786A1 - Procédé pour la coulée continue de metal et installation de coulée continue appropriée - Google Patents

Procédé pour la coulée continue de metal et installation de coulée continue appropriée Download PDF

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Publication number
EP0934786A1
EP0934786A1 EP99890050A EP99890050A EP0934786A1 EP 0934786 A1 EP0934786 A1 EP 0934786A1 EP 99890050 A EP99890050 A EP 99890050A EP 99890050 A EP99890050 A EP 99890050A EP 0934786 A1 EP0934786 A1 EP 0934786A1
Authority
EP
European Patent Office
Prior art keywords
zone
radius
mold
bending
circular arc
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
EP99890050A
Other languages
German (de)
English (en)
Other versions
EP0934786B1 (fr
EP0934786B2 (fr
Inventor
Heinz Hödl
Michael Stiftinger
Andreas Eichinger
Kurt Engel
Jean-Francois Marioton
Gerard Zurita
Vincent Guyot
Catherine Lopes
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.)
Primetals Technologies Austria GmbH
Sollac Fos
Original Assignee
Voest Alpine Industrienlagenbau GmbH
Sollac Fos
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=3522250&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0934786(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voest Alpine Industrienlagenbau GmbH, Sollac Fos filed Critical Voest Alpine Industrienlagenbau GmbH
Priority to SI9930001T priority Critical patent/SI934786T2/xx
Publication of EP0934786A1 publication Critical patent/EP0934786A1/fr
Publication of EP0934786B1 publication Critical patent/EP0934786B1/fr
Application granted granted Critical
Publication of EP0934786B2 publication Critical patent/EP0934786B2/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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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 strand below the mold is usually guided in a straight line led, which extends over a length that the strand due to the direct cooling below the mold secures a sufficiently strong strand shell so that the strand can then be bent in a bending zone such that it is along a Circular arc guide that connects to the bending zone and a predetermined radius has, can be promoted.
  • An end straightening zone adjoins the circular arc guide in which the strand is again straightened. In the straight state The strand is conveyed over an approximately horizontally aligned straight guide.
  • Arc mold is the cavity into which the liquid metal is poured, arcuate, preferably formed in a circular arc, so that the strand emerging from the mold be supported and promoted directly after exiting using an arcuate guide can.
  • arcuate preferably formed in a circular arc
  • the invention has for its object a method for continuous casting and a Continuous caster to carry out the process in which the strand under Using a straight mold and using the most important components a continuous caster with a curved mold, e.g. the circular arc guide, casting platform etc. can be poured.
  • Another object of the invention is in a continuous caster with a straight mold, about the height required by a continuous caster with curved Has mold with the same radius of the casting strand or the circular arc guide. Necessary conversions when changing from an arc mold to a straight mold should be minimized in terms of time and costs.
  • the task is the beginning of a method for continuous casting of a metal strand described type in that the strand in at least one bending zone along a Transition curve is bent into a circular arc shape having a first radius and in at least one downstream directional zone along a transition curve into a Arc shape with a larger radius than the radius that the strand after the first Has bending zone, is bent, the larger radius preferably the radius of the Circular arc guidance in front of the final straightening zone corresponds.
  • the strand having a first radius is preferably between the first Bending zone and the first subordinate straightening zone along a circular arc guide this first radius, advantageously the straight strand emerging from the mold between the mold and the first bending zone along a vertical straight line becomes.
  • a continuous caster for carrying out the method according to the invention with a straight mold, with one of these downstream in the strand extraction direction a bending zone, a circular arc guide and an end straightening zone followed by approximately Horizontal straight guidance is characterized in that at least one bending zone at least one straightening zone with subsequent circular arc guidance is arranged downstream.
  • a preferred embodiment is characterized in that according to the AT-B - 331 439 the course of the curve caused by the bending zone (s) or straightening zones Elongation of the strand in at least one of the two transition areas approximately the shape of an obliquely distorted "S" with a turning tangent, the slope on The beginning and end of the expansion curve plotted over the area is zero on the X axis of a Cartesian coordinate system, the origin of which is on The beginning of the transition curve is located and its X-axis is a tangent to the Represents transition curve.
  • the slope of the turning tangent suitably corresponds to a maximum of one permissible change in elongation of 0.0025% / mm for bending and 0.0030% / mm for Judge.
  • the straight mold is installed in the caster at a level that is different from the level the arc mold deviates only slightly, preferably lies slightly above this level, whereby the deviation from the level of the arc mold depends on the height of the hall installed crane system etc.
  • a "small height deviation" is usually one referred to, in which a reconstruction of the hall structure can be avoided in any case;
  • the height deviation for conventionally designed casting halls is 1 ⁇ 2 m to maximum one meter.
  • Fig. is a schematic side view of a Continuous caster with straight mold and curved mold shows.
  • Strand guide 2 illustrates, the strand guide to simplify the illustration 2 in the upper area - i.e. immediately below the bow mold 1 - only by one dashed line, which illustrates the outside or underside of the strand.
  • This Strand guide 2 is, as usual, of support and adjoining the mold Guide rollers 2 'formed, the strand on both sides, ie on the outside or bottom and also support on the inside or top at close intervals.
  • the one with a dashed line The illustrated bottom or outside of the strand thus forms an envelope of all of these Roll.
  • the casting platform 3 lies approximately at the height of the upper edge of the arc mold 1.
  • the interior 4 of the arc mold 1, ie the continuous cavity 4, into which the molten metal flows via a conventional ladle (not shown) into a likewise not shown but conventionally designed intermediate vessel and flows from this over a pouring tube into the arc mold 1, is designed in an arc shape, etc. circular arc.
  • the circular arc guide 2 adjoining the arc mold 1 has a radius R end .
  • the center point 5 of this circular arc guide is located approximately at the level of the lower half of the arc mold 1 and thus by the height Ho below the mold level 6 of the arc mold 1.
  • the straightening zone 7 advantageously has a transition curve according to AT-B - 331 439 um to ensure a gentle straightening of the strand.
  • an approximately horizontally oriented straight guide 8 is provided, which is also closely adjacent Has support and guide roles. The strand runs along this straight guide 8 conveyed out, then separated into individual strand pieces or directly rolled.
  • the Straight guide 8 can also deviate from the horizontal; so are 5 ° ⁇ from that Horizontal easily possible.
  • this straight mold 9 is also offset by a small amount in terms of height relative to the curved mold 1, etc. raised by the height H v .
  • a vertically oriented straight guide 11 adjoins the straight mold 9, ie a mold 9 with a vertically oriented and rectilinear cavity 10 into which the molten metal is poured. This ensures a purely vertically aligned section of the cast strand, which ensures efficient cleaning, ie rising of impurities and gas bubbles which are flushed into the liquid core of the strand with the pouring jet.
  • a bending zone 12 is provided, the one Has transition curve, along which the strand from straight to a circular arc shape is bent.
  • This transition curve is also expedient according to AT-B - 331 439 designed.
  • the circular arc shape has a radius R min which is smaller than the radius R end of the circular arc guide 2, which was provided for the arc mold 1.
  • R min Downstream of the bending zone 12 is a circular arc guide 13 with the radius R min, which extends only over a smaller radius angle of approximately 20 °.
  • a straightening zone 14 adjoins this circular arc guide 13, in which the strand is slightly straightened, etc. is bent precisely to the radius R end that the circular arc guide 2 originally intended for the arc mold 1 has.
  • R min is to be selected depending on the material to be cast, the casting speed and the casting thickness (strand thickness). When choosing R min it should be noted that the strand shell is not subjected to excessive loads (no excessive change in elongation) when it is bent for the first time.
  • the strand emerging from the straight mold 9 is first bent to a radius R min which is smaller than the radius R end of the circular arc guide 2 of the arc mold 1, and only then is it bent to this radius R end .
  • This bending of the straight strand to the radius R end can also take place in several stages, for example by arranging several straightening zones 14 one behind the other, but also by bending in a first bending zone 12 which bends the straight strand to a narrower radius R min than the radius R end of the circular arc guide, then aiming at a slightly larger radius than R min , which the strand assumes when it leaves the first bending zone, this process also being able to be repeated several times, until the radius R end of the circular arc guide of the arc mold is reached .
  • These variants with multiple straightening or multiple bending straightening can be used advantageously if it is desired that the straight mold 9 is exactly at the level 3 of the arch mold 1 removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP99890050A 1998-11-06 1999-02-10 Procédé pour la coulée continue de métal et installation de coulée continue appropriée Expired - Lifetime EP0934786B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9930001T SI934786T2 (en) 1998-11-06 1999-02-10 Process of continuous casting of metal and continuous casting plant for carrying out the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0184498A AT406746B (de) 1998-11-06 1998-11-06 Verfahren zum stranggiessen von metall sowie stranggiessanlage hierzu
AT184498 1998-11-06

Publications (3)

Publication Number Publication Date
EP0934786A1 true EP0934786A1 (fr) 1999-08-11
EP0934786B1 EP0934786B1 (fr) 2000-04-26
EP0934786B2 EP0934786B2 (fr) 2003-12-03

Family

ID=3522250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890050A Expired - Lifetime EP0934786B2 (fr) 1998-11-06 1999-02-10 Procédé pour la coulée continue de métal et installation de coulée continue appropriée

Country Status (19)

Country Link
US (1) US6155332A (fr)
EP (1) EP0934786B2 (fr)
JP (1) JP2002529248A (fr)
KR (1) KR100585998B1 (fr)
CN (1) CN1214884C (fr)
AT (1) AT406746B (fr)
AU (1) AU766532B2 (fr)
BR (1) BR9915112A (fr)
CA (1) CA2346999C (fr)
DE (1) DE59900002D1 (fr)
DK (1) DK0934786T4 (fr)
ES (1) ES2148008T5 (fr)
MX (1) MXPA01004540A (fr)
PL (1) PL191476B1 (fr)
RU (1) RU2229957C2 (fr)
SI (1) SI934786T2 (fr)
TW (1) TW424018B (fr)
WO (1) WO2000027565A1 (fr)
ZA (1) ZA200103606B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103321A1 (fr) * 1999-11-24 2001-05-30 SMS Demag AG Configuration des rayons d'un système de guidage de barres de coulée pour installation de coulée continue verticale-courbe
EP2893993A1 (fr) * 2013-11-29 2015-07-15 SMS Siemag AG Installation de tronçons de coulée et procédé de coulée d'une barre métallique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104588604B (zh) * 2015-01-06 2017-01-11 燕山大学 一种连铸机弯曲段和矫直段辊列设计方法
CN105945248B (zh) * 2016-06-21 2018-01-23 燕山大学 一种直弧型连铸机的蠕变弯曲蠕变矫直方法
CN115415489B (zh) * 2022-09-05 2024-02-13 东北大学 一种铝/铝合金薄板坯连铸装备及工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT331439B (de) * 1973-07-24 1976-08-25 Voest Ag Strangfuhrung fur eine stranggiessanlage
AT373518B (de) * 1982-05-18 1984-01-25 Voest Alpine Ag Strangfuehrung fuer eine stranggiessanlage zum kontinuierlichen giessen von metallschmelze

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124450B (de) * 1960-11-18 1962-03-01 Bergwerksverband Gmbh Einrichtung zum Abstuetzen des Bergeversatzes in der steilen und halbsteilen Lagerung
DE1250973B (fr) * 1963-05-03 1967-09-28
JPS5030575B1 (fr) * 1970-01-29 1975-10-02
JPS5180624A (en) * 1975-01-13 1976-07-14 Nippon Kokan Kk Haganenorenzokuchuzoho oyobi sonosochi
JPS5257027A (en) * 1975-11-06 1977-05-11 Ishikawajima Harima Heavy Ind Method of continuous casting
JPS56134054A (en) * 1980-03-22 1981-10-20 Hitachi Zosen Corp Guiding method for continuously cast ingot
DE3011137C2 (de) * 1980-03-22 1988-03-24 Mannesmann AG, 4000 Düsseldorf Verfahren zum Regeln der Einzelantriebe einer Bogenstranggieß-Vielrollenmaschine für Stahl
JPS58363A (ja) * 1981-06-25 1983-01-05 Nippon Steel Corp 多点矯正彎曲型連続鋳造方法及び装置
JPS59118257A (ja) * 1982-12-24 1984-07-07 Nippon Steel Corp 連続鋳造機
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
US5853643A (en) * 1996-07-19 1998-12-29 Bauer; Scott V. Method for constructing a liquid-impervious electric motor assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT331439B (de) * 1973-07-24 1976-08-25 Voest Ag Strangfuhrung fur eine stranggiessanlage
AT373518B (de) * 1982-05-18 1984-01-25 Voest Alpine Ag Strangfuehrung fuer eine stranggiessanlage zum kontinuierlichen giessen von metallschmelze

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103321A1 (fr) * 1999-11-24 2001-05-30 SMS Demag AG Configuration des rayons d'un système de guidage de barres de coulée pour installation de coulée continue verticale-courbe
EP2893993A1 (fr) * 2013-11-29 2015-07-15 SMS Siemag AG Installation de tronçons de coulée et procédé de coulée d'une barre métallique

Also Published As

Publication number Publication date
CA2346999A1 (fr) 2000-05-18
CN1325330A (zh) 2001-12-05
US6155332A (en) 2000-12-05
DE59900002D1 (de) 2000-05-31
WO2000027565A1 (fr) 2000-05-18
ATA184498A (de) 2000-01-15
AU766532B2 (en) 2003-10-16
CA2346999C (fr) 2008-06-17
ES2148008T3 (es) 2000-10-01
KR20010082285A (ko) 2001-08-29
SI934786T1 (en) 2000-08-31
DK0934786T4 (da) 2004-02-02
AU1018000A (en) 2000-05-29
MXPA01004540A (es) 2003-09-10
SI934786T2 (en) 2004-04-30
ES2148008T5 (es) 2004-07-16
PL348099A1 (en) 2002-05-06
TW424018B (en) 2001-03-01
CN1214884C (zh) 2005-08-17
EP0934786B1 (fr) 2000-04-26
EP0934786B2 (fr) 2003-12-03
RU2229957C2 (ru) 2004-06-10
AT406746B (de) 2000-08-25
ZA200103606B (en) 2002-02-11
KR100585998B1 (ko) 2006-06-01
PL191476B1 (pl) 2006-05-31
JP2002529248A (ja) 2002-09-10
BR9915112A (pt) 2001-07-31
DK0934786T3 (da) 2000-09-25

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