EP1525931A1 - Dispositif pour déterminer la consistance d'un lingot coulée et/ou l'ouverture de rouleaux dans une machine de coulée continue - Google Patents

Dispositif pour déterminer la consistance d'un lingot coulée et/ou l'ouverture de rouleaux dans une machine de coulée continue Download PDF

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Publication number
EP1525931A1
EP1525931A1 EP04024352A EP04024352A EP1525931A1 EP 1525931 A1 EP1525931 A1 EP 1525931A1 EP 04024352 A EP04024352 A EP 04024352A EP 04024352 A EP04024352 A EP 04024352A EP 1525931 A1 EP1525931 A1 EP 1525931A1
Authority
EP
European Patent Office
Prior art keywords
guide element
arrangement according
plane
axis
strand
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
EP04024352A
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German (de)
English (en)
Other versions
EP1525931B1 (fr
Inventor
Ingo Dr. Schubert
Britta Schubert
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.)
SCHUBERT, BRITTA
SCHUBERT, INGO, DR.
Original Assignee
Individual
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Publication of EP1525931A1 publication Critical patent/EP1525931A1/fr
Application granted granted Critical
Publication of EP1525931B1 publication Critical patent/EP1525931B1/fr
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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • 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

Definitions

  • the invention relates to an arrangement for determining the consistency of a cast strand in a continuous casting plant and / or the mouth width of the same.
  • the productivity of a continuous casting machine is determined by the casting speed and determines the casting format.
  • the format thickness is usually through the following Specified processing plants.
  • Productivity increases are essentially achievable by the highest possible casting speed. It should the casting speed be adjusted so that the solidification ideally in the end the strand guide assembly of the continuous casting is done.
  • the continuous casting plant it is known where the swamp tip is located, and where the strand is already solidified.
  • the swamp tip in the cast strand are known various methods. Especially the sump tip detection is favorable by using the mechanical or dynamic properties of the cast strand depending on its consistency.
  • Such a method is, for example, in the article "Innovation in the Continuous Casting: Improving Quality and Efficiency through CyberLink - Technology "by Peter Müller, Georg Grundmann, Horst von Wyl and Wolfram Jung and Ingo Schubert, described in steel and iron of September 2002.
  • a continuous casting which has a guide assembly for the casting strand several paired lower and upper frames and guide rollers has, provided that the upper frame of a pair arranged to the stationary Subframe is oscillatable, so that the jaw width varies between the two becomes.
  • the oscillation then moves in a small adjustment range of ⁇ 0.3 mm with a frequency of 3 Hz.
  • the way of the Upper frame and the required cylinder force measured in the actuating cylinder and plotted in a force path diagram, resulting in a hysteresis curve results whose surface area represents the energy required for the oscillation.
  • Predefined value ranges are representative of the assessment of the condition the cast strand, for example, the solidified strand.
  • the invention is based on the object, an arrangement for determining the consistency a cast strand in a continuous casting of the same and / or the mouth width which allows a more accurate measurement, in particular with that for the Evaluation signals are provided, the more accurate measurement results generate, and the retrofitting of existing continuous casters cost allowed.
  • a particularly favorable arrangement results when the linear actuator two actuators which respectively close to the longitudinal ends of the measuring roller on the first Attacking guide element and both individually and together for transmission to serve a linear movement.
  • the actuators can synchronously and For example, at the same time generate an oscillating motion, so that the signals can be evaluated separately from the two actuators, for example with a relatively wide cast strand consistency differences towards To better recognize the lateral ends of the cast strand.
  • a hydraulic linear drive for example a Hydraulic cylinder, provided. Hydraulic oscillating drives are known per se.
  • the actuators are designed as hydraulic cylinders, the near the longitudinal ends of the measuring roller on the inner guide element, which is the Wearing measuring roll, interacting.
  • the arrangement according to the invention is to be used as a single unit, that of the usual arrangements with a top frame and a subframe is separated, or is assigned to a top frame opposite in the casting operation the sub-frame is held stationary, it is provided that the second guide element connected to an actuator and through this at least between two positions is adjustable along the placement plane.
  • This actuator can also be shown as a hydraulic cylinder.
  • a particularly favorable and low-friction mutual association between the first guide element and the second guide element is achieved by the second guide element surrounds the first guide element like a frame, that the first guide element with the second guide element without contact is connected by at least two cable elements and that the first guide element by at least one spring supported on the second guide element is acted upon so that the rope elements are claimed to train.
  • the frequency designed be that it is in the range of natural frequency of the unit. With this measure the accuracy of the resulting measurement results is favorably influenced.
  • at least three rope elements are provided, their profiles instantaneous poles form on a line that runs parallel to the plane and the Rotary axis at right angles with distance crosses, are arranged.
  • the arrangement be taken so that the rope elements V-shaped toward each other are arranged.
  • This arrangement causes the rope elements an alignment the measuring roller to the cast strand such that the axis of rotation perpendicular to Casting direction sets.
  • the Rope elements and the at least one spring each with their axes at rest of the linear drive are arranged lying in planes that the job plane cross at right angles and run parallel to the axis of rotation.
  • the springs are preserved a bias.
  • an arrangement provided in the four rope elements each of which has two rope elements in one of two parallel planes are arranged, and arranged in the associated plane extending toward each other are.
  • the axis of the at least one spring is preferably rectangular arranged standing on the standing plane.
  • two groups of springs are provided, which are arranged in parallel planes.
  • the measuring roller off the axis of rotation centered part rolls is formed.
  • the arrangement according to the invention is also favorable, in which the upper frame a continuous casting plant, in which the upper frame itself to the associated Subframe by means of power drive approachable or moved away from this to For example, an adjustment to each other to Dickeneinregelung the cast strand to make or the upper frame closer to the subframe when starting to be approached by means of a Anfahrstranges.
  • the Retrofit in continuous casting in which the upper frame in its position a subframe is fixed in a fixed position, i. is also provided for, that the second guide element on a provided with guide rollers
  • Upper frame of a strand guide assembly for the casting strand of a continuous casting plant is movably arranged in the plane of the digit.
  • a Strand guide for a continuous casting plant in which the upper frame to the subframe is adjustable by means of hydraulic cylinders, is for example in EP 0 963 263 B1 described.
  • a preferred embodiment of the invention is schematically in the drawing shown.
  • FIG. 1 is a plan view of a top frame 1 for the strand guide a Continuous casting plant can be seen.
  • the upper frame 1 has several parallel to each other arranged trusses 2, which at their lateral ends on spars with each other are connected.
  • a measuring roller unit 4 which is linearly adjustable in a plane which is perpendicular to the sheet plane is arranged between the inner trusses 2, i. into the leaf level and can be moved out of this.
  • Fig. 2 is a section II-II of Fig. 1 represents.
  • Fig. 2 are schematically the support rollers 3 of the upper frame 1 opposite Subframe shown. Between which the trusses 2 lateral connecting Holmen of the upper frame 1 is the measuring roller unit 4 by means of sliding guides 13 in a plane which is parallel to the drawing plane of Fig. 2, linear adjustably guided, that is, the knife roller unit 4 can on the support rollers 3 to or be moved away from these, around the resting on the support rollers 3 cast strand 5 to act on.
  • the measuring roller unit 4 comprises the measuring roller 6, which around the rotation axis 7, in the Set level S is arranged, is rotatable.
  • the measuring roller 6 is about the rotation axis 7 at a first guide element 11, that in particular from FIGS. 3 to 6 can be seen is stored above camp 10.
  • the measuring roller 6 is drivable to the Outer contour of the measuring roller 6 is facing away from the support rollers 3 surface the casting strand 5 can be brought into contact and indeed force and / or path controlled.
  • the first guide member 11 in a frame-like enclosing this second guide member 12 in the set plane S by means of two as a hydraulic cylinder designed actuators 14 linearly movable.
  • actuators 14 can over a hydraulic circuit, not shown, pressure and / or driven away controlled be, so that there is a corresponding adjustment of the measuring roller 6.
  • the measuring roller 6 is otherwise made of two centered on the axis of rotation 7 part rollers formed, which laterally connect to the bearings 10.
  • the measuring roller 6 forms first longitudinal end 8 and second longitudinal end 9.
  • the two actuators 14 are In addition, connected to a circuit in a known method, for. B. electro-hydraulic, can be designed.
  • the two actuating units 14 are based on the one hand on the first guide member 11th and on the other hand on the second guide element 11 enclosing the first Guide element 12 from. It can be seen in particular in FIG. 2 that the two Actuators 14 are each arranged to a longitudinal end 8 and 9 out. hereby For example, the measurement signals for the two actuation units 14 can be recorded separately and evaluated, so that the condition of the cast strand in the area can be detected individually to the two longitudinal ends 8,9 out.
  • the second guide element 12 is between the two inner trusses 2 and the connecting them Holmen guided by the sliding guide 13. Further can the measuring roller 6, which also by a rotary drive, not shown around the Rotary shaft 7 may be driven in rotation, from the position shown opposite the support rollers 3 in a position further approximated by an actuator 15 are adjusted in the form of a hydraulic cylinder, this one hand on the second guide element 12 and on the other hand on the adjacent trusses 2, between which the second guide element 12 is arranged linearly adjustable, is supported.
  • the two actuators 14 are designed only in their linear movement so that the for the measurement required force or path controlled movement are carried out in terms of size can. However, such movements are in the range of ⁇ 0.2 mm ⁇ 5 mm.
  • the arrangement of the first guide element 11 in relation to the second guide element 12, by which it is enclosed, arises in particular in context with the Fig. 3 to 7, wherein in these the actuating units 14 and the actuator 15 are not shown.
  • the top frame against the subframe sufficient for starting can be adjusted to dispense with the arrangement of the actuator 15.
  • the second guide member 12 part of the upper frame be formed, for example, by traverses thereof.
  • the two actuation units 14 according to FIG. 2 serve to illustrate that shown in FIGS. 3 to 6 first guide member 11 relative to the second guide member 12 in to adjust the setting plane S linear means of actuators, not shown there.
  • the first guide element 11 is opposite to the second guide element 12 held as described below, so that practically a frictionless Movement is possible.
  • each cable element 16 is the 16th passed through a bore in the first guide member 12 and by means of a first Fixing element 17 fixed to the first guide member 11.
  • Every rope element 16 is further provided with a second fastener 18 on the second guide member 12 fixed, wherein the length of the cable element 16 is sized, that no contact between the first guide member 11 and the second guide member 12, which surrounds the first guide member 11 is given.
  • the rope axis the rope elements 16 are each denoted by 19. Of the two in the plane E1 rope elements 16 shown, the second is shown only with the cable axis 19. Further, in the plane E1 is an arrangement which, as shown in FIG. 2 in connection with Fig. 3, still a spring 20 includes, designed as a compression spring is and whose axis 21 lies in the planes E1.
  • the spring 20 is supported by a Cover 22 on the second guide member 12 and sits in a bore 27th of the second guide element 12.
  • a stepped through hole 25 in a support pot 23 with a collar 24 is held axially.
  • the spring is supported 20 off with their other end.
  • the arrangement is such that the spring 20 the cable element 16 claimed to train, whereby the first guide member 11th is kept free of investment in the second guide member 12.
  • the spring axis 21 extends at right angles to the position plane S.
  • FIG. 7 as a schematic diagram, the two cable shafts 19 at an angle such that, for example, the extensions of the cable shafts 19 at the intersection with the imaginary plane E3 each form a momentary pole P1.
  • the two rope elements located in the plane E1 intersect with their cable axes 19 the plane E3 against the casting direction G to the axis of rotation 7 of the measuring roller. 6 offset in the common instantaneous P1.
  • a similar arrangement is with respect to the cable elements 16 and the spring 20 for however, a total of four spring arrangements are formed in the second plane E2 this level are provided. Otherwise, two rope elements with cable axles 19 arranged in this plane E2. And according to the arrangement in the plane E1, but the two cable axes 19, the imaginary plane E3 in a common Momentary pole P2 cut to the instantaneous pole P1 is offset.
  • the Momentanpole P1, P2, the cable axles 19 are associated, in different Layers E1 and E2 are located on a line L, which lies in the plane E3 and the Rotary axis 7 of the measuring roller 6 perpendicularly intersects at a distance.
  • the training with a total of four spring arrangements in the field of E2 level and two spring arrangements in the region of the plane E1 is taken, for example Moments that are generated via the contact of the measuring roller 6 with the cast strand 5, intercept.
  • the arrangement of the cable elements 16 and the springs 20 is shown in Fig. 4 in the second Level E2 mirror image in relation to the arrangement of FIG. 3 in the plane Hit E3. That while the springs 20 in the first plane E1, the first guide element 11 act in the casting direction G, the arrangement is carried out in the second plane E2 so that the application of the springs 20 against the Casting is given.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP04024352A 2003-10-24 2004-10-13 Dispositif pour déterminer la consistance d'un lingot coulée et/ou l'ouverture de rouleaux dans une machine de coulée continue Active EP1525931B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349962 2003-10-24
DE10349962A DE10349962B3 (de) 2003-10-24 2003-10-24 Anordnung zur Ermittlung der Konsistenz eines Gießstranges in einer Stranggießalage und/oder Maulweite derselben

Publications (2)

Publication Number Publication Date
EP1525931A1 true EP1525931A1 (fr) 2005-04-27
EP1525931B1 EP1525931B1 (fr) 2010-05-12

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EP04024352A Active EP1525931B1 (fr) 2003-10-24 2004-10-13 Dispositif pour déterminer la consistance d'un lingot coulée et/ou l'ouverture de rouleaux dans une machine de coulée continue

Country Status (3)

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EP (1) EP1525931B1 (fr)
AT (1) ATE467473T1 (fr)
DE (2) DE10349962B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007137712A1 (fr) * 2006-05-31 2007-12-06 Sms Demag Ag Dispositif de guidage de barre pour guider une bande de métal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512214B1 (de) 2011-12-05 2015-04-15 Siemens Vai Metals Tech Gmbh Prozesstechnische massnahmen in einer stranggiessmaschine bei giessstart, bei giessende und bei der herstellung eines übergangsstücks

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315433A1 (de) * 1973-03-28 1974-10-10 Lotz Kg Gastechnik Messvorrichtung fuer stranggiessanlagen
DE19720768C1 (de) * 1997-05-07 1999-01-14 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl
EP0963263A1 (fr) * 1997-01-27 1999-12-15 MANNESMANN Aktiengesellschaft Dispositif de guidage du produit coule en particulier pour une installation de coulee en continu de brames
DE10039016A1 (de) * 2000-08-10 2002-02-21 Sms Demag Ag Verfahren zum Erzeugen von Brammen aus Stahl
US6568460B1 (en) * 1999-04-10 2003-05-27 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for adjusting the profile of a continuously cast slab, particularly of a thin slab
EP1369192A1 (fr) * 2002-05-31 2003-12-10 SMS Demag AG Procédé pour déterminer la pointe du noyeau liquide d'une coulée continue en appliquant une oscillation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806583A1 (de) * 1988-02-26 1989-09-07 Mannesmann Ag Verfahren an einer giessanlage zur erzeugung von straengen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315433A1 (de) * 1973-03-28 1974-10-10 Lotz Kg Gastechnik Messvorrichtung fuer stranggiessanlagen
EP0963263A1 (fr) * 1997-01-27 1999-12-15 MANNESMANN Aktiengesellschaft Dispositif de guidage du produit coule en particulier pour une installation de coulee en continu de brames
DE19720768C1 (de) * 1997-05-07 1999-01-14 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von Brammen aus Stahl
US6568460B1 (en) * 1999-04-10 2003-05-27 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for adjusting the profile of a continuously cast slab, particularly of a thin slab
DE10039016A1 (de) * 2000-08-10 2002-02-21 Sms Demag Ag Verfahren zum Erzeugen von Brammen aus Stahl
EP1369192A1 (fr) * 2002-05-31 2003-12-10 SMS Demag AG Procédé pour déterminer la pointe du noyeau liquide d'une coulée continue en appliquant une oscillation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MUELLER P ET AL: "VERBESSERUNG VON QUALITAET UND WIRTSCHAFTLICHKEIT IN DER STRANGGIESSTECHNIK BENEFITS IN QUALITY AND ECONOMICS IN CONTINUOUS CASTING", STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DUSSELDORF, DE, vol. 9, no. 122, 16 September 2002 (2002-09-16), pages 67 - 72, XP001141792, ISSN: 0340-4803 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007137712A1 (fr) * 2006-05-31 2007-12-06 Sms Demag Ag Dispositif de guidage de barre pour guider une bande de métal

Also Published As

Publication number Publication date
DE502004011152D1 (de) 2010-06-24
EP1525931B1 (fr) 2010-05-12
DE10349962B3 (de) 2005-06-02
ATE467473T1 (de) 2010-05-15

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