EP1504832B1 - Procédé et dispositif pour la mesure sans contact de l'épaisseur et/ou du profil de lingots métalliques continus, en particulier lingots d'acier, dans une installation de coulée continue à plusieurs lignes - Google Patents

Procédé et dispositif pour la mesure sans contact de l'épaisseur et/ou du profil de lingots métalliques continus, en particulier lingots d'acier, dans une installation de coulée continue à plusieurs lignes Download PDF

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Publication number
EP1504832B1
EP1504832B1 EP04014660A EP04014660A EP1504832B1 EP 1504832 B1 EP1504832 B1 EP 1504832B1 EP 04014660 A EP04014660 A EP 04014660A EP 04014660 A EP04014660 A EP 04014660A EP 1504832 B1 EP1504832 B1 EP 1504832B1
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EP
European Patent Office
Prior art keywords
measuring
profile
strip
sensors
base frame
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.)
Expired - Lifetime
Application number
EP04014660A
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German (de)
English (en)
Other versions
EP1504832A1 (fr
Inventor
Axel Weyer
Thomas Fest
Feldhaus Dr.Stephan
Eric Froese Johannes
Arlt Alfred
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 EP1504832A1 publication Critical patent/EP1504832A1/fr
Application granted granted Critical
Publication of EP1504832B1 publication Critical patent/EP1504832B1/fr
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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
    • B22D11/14—Plants for continuous casting
    • B22D11/147—Multi-strand plants
    • 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 and a device for contactless measurement of the profile thickness and / or the profile shape of casting strands of a Mehrstrangg messstrom for liquid metals, especially for steel, in the profile thicknesses or profile shapes of a billet, block.
  • Beam blank, slab or thin slab strand can be measured by sensors.
  • Such profile thickness measurements are used on continuous casting plants based on laser or isotope radiation systems.
  • the systems are positioned either laterally or vertically to the measurement product and determine the profile thickness of the measurement product via the respective number of sensors used, depending on the measurement task, and the corresponding evaluation method.
  • Such a device for determining the Sp dirtykantmaschine of continuous casting billets during the casting process is from the DE 32 40 515 A1 known.
  • Two distance measuring sensors are arranged around the billet cross-section per side, from whose distance-proportional signals the position of the respective billet side and therefrom the skewer angularity are determined.
  • the spit angularity is an error that occurs during continuous casting with subsequent cooling by an uneven spraying with cooling water.
  • the measure of spit angularity can be used for a better controlled variable, so that the spit can be reduced.
  • the invention has for its object to monitor a uniform spreading of all casting strands in a Mehrstranggellostrom and if necessary. To change the control variables of individual casting strands.
  • the stated object is achieved according to the invention in that, after selecting a casting strand to be measured, a non-stationary measuring device moves into a measuring position perpendicular to the course of a strand group of the parallel casting strands and the measuring process is triggered. This makes it possible to adjust individual casting strands with the parameters of their controlled variables the conditions of the remaining casting strands again and thus to ensure uniform spreading.
  • transient measuring device is adjusted to the respective center of the cast strand. This measuring method is suitable for profile thickness measurements.
  • the setting of the measuring position is carried out in a casting pause.
  • Working on the sensor can be carried out according to further features such that for setting the measuring position, the measuring device is moved to a parking position outside the radiation range of the strand group or in a shielded maintenance area.
  • Changes in the controlled variables or deviations from the specifications can be further taken into account by measuring either the entire profile shape of a cast strand or at least one profile side.
  • the device for contactless measurement of the profile thickness and / or the profile shape of casting strands of a Mehrstrangg messstrom for liquid metals, especially for liquid steel, with cross-sectional shapes and dimensions of a billet, block, Beamblank-, slab or thin slab strand goes from a stand the technique by means of sensors which are arranged within a base frame surrounding the cross-sectional shape.
  • This device achieves the object according to the invention in that perpendicular to the parallel strand course of the strand group a rail guide for an internally cooled, reciprocable base frame runs, in which the measuring device is arranged with the sensors, the sensors with an evaluation electronics away from the Casting strands communicate.
  • the measuring device is arranged with the sensors, the sensors with an evaluation electronics away from the Casting strands communicate.
  • the rail guide may be similar to a crane runway or a sliding door device. Likewise, friction-reducing components, for example. Wheels, rollers u. Like., Are used.
  • the rail guide is disposed outside the spray area of the cooling chamber.
  • the internal cooling compensates for a possible temperature expansion.
  • the measurement results are considerably more accurate compared to an arrangement of the base frame within the cooling chamber.
  • the cooling of the base frame can be further made such that the internally cooled base frame is coupled by means of flexible media connections to media connections or connectable in the respective measuring position via locally provided couplings.
  • compressed air, cooling water and lubrication can be taken into account.
  • the connection is thus variable and applicable to all positions of the base frame.
  • the internally cooled base frame is made of stainless steel. As a result, only limited thermal expansion occurs in conjunction with the internal water cooling. The sensors thereby retain their exact position during measurement.
  • the different positions of the base frame can be taken into account by the sensors being connected to the evaluation electronics via flexible and / or variable cable connections or communicating via a wireless radio link.
  • the evaluation electronics can be accommodated in the form of a measuring computer in the switching house of the continuous casting machine.
  • recordings, their assignment to the measured casting strand and the evaluation of the measurement results can be carried out centrally.
  • the measurement of the profile thickness or the profile shape can in each case take place in that the sensors are arranged symmetrically in pairs in the base frame for a two-sided distance measurement to the respective profile side in pairs.
  • continuous casting machines 2 form the special type of plant of a Mehrstrangg eyestrom 3, which may, for example, consist of six billet strands 1 a ( Fig. 3 ).
  • the liquid metal in particular steel 4, passes from a ladle 5 via a distributor vessel 6 (of which two can be present in a 6-strand system) each through the continuous casting mold 7 (primary cooling) in a cooling chamber 8 (secondary cooling) and is by means of a Support roller frame 9 out in the bow and in the horizontal by a directional driver unit 10 again straightened ( Fig. 1 ).
  • the invention serves for non-contact measurement of the profile thickness 11 (FIG. Fig. 8 ) or the entire profile shape 12 with cross-sectional shapes 13 of a billet strand 1a by means of sensors 14 which are arranged within a cross-sectional shape 13 of a billet.
  • Fig. 2 is perpendicular to the parallel strand course 16 (FIG. Fig. 3 and 4 ) of the strand groups 17 of the base frame 15 shown in a trained as a carrier rail guide 18 and herverfahrbar.
  • a measuring device 19 is arranged with pairwise sensors 14.
  • the sensors 14 are connected to an evaluation electronics 20.
  • the rail guide 18 is in the Fig. 2 and 4 arranged outside the spray area 21.
  • the internally cooled base frame 15 is connected by means of flexible media connections 22 (FIG. Fig. 7 ) to a media port 23 (for air, water and / or lubricants) connected.
  • the internally cooled base frame 15 may be made of stainless steel.
  • From the sensors 14 ( Fig. 8 ) leads a flexible cable connection 24 to the evaluation electronics 20.
  • the evaluation electronics 20 can as Measuring computer 26 be configured.
  • the measuring computer 26 is in a switching house 27 of the Mehrstrangg matterstrom 3 ( Fig. 3 ) housed.
  • the center 1 b in each case forms a measuring position 28 on the travel path 29 of the base frame 15.
  • the sensors 14 can therefore also be arranged horizontally (additionally) for scanning a profile side 1c.
  • the two sensors 14 are designed as a triangulation laser system.
  • the method for the contactless measurement of the profile thickness 11 or the profile shape 12 on individual casting strands 1 of the Mehrstrangg messstrom 3 for liquid metals, especially for liquid steel 4, determines the profile thickness 11 or a profile shape 12 of the listed cross-sectional shapes 13 of each species on the sensors 14th
  • the transient measuring device 19 is moved perpendicular to the parallel strand profile 16 of the strand groups 17 of the parallel casting strands 1 into a measuring position 28 and then the measuring process is triggered. It is set in the transient measuring device 19 to the respective center 1 b of the cast strand 1.
  • the setting of the measuring position 28 can take place in a casting pause.
  • the measuring device 19 can be moved to a parking position 30 (FIG. Fig. 7 ) outside the radiation range of the respective strand group 17 or in a shielded maintenance area 31.
  • a parking position 30 (FIG. Fig. 7 ) outside the radiation range of the respective strand group 17 or in a shielded maintenance area 31.
  • Fig. 8 Either the entire profile form 12 of a casting strand 1 or at least one profile side 1 c can be scanned.
  • FIGS. 5 and 6 the process is shown in front view to the directional driver unit 10, wherein the base frame 15 is shown in dashed lines with the measuring device 19. There are also the strand groups 17, 17 visible. In the same position, the base frame 15 is in Fig. 6 ,
  • the determination of the profile thickness 11 via a corresponding signal evaluation and processing in the evaluation electronics 20 The position of the billet strand 1 a with a cross-sectional shape 13 within the base frame 15 is due to the measuring principle used. Each sensor 14 detects position and distance of the respective profile page 1 c. Due to the used time-synchronous evaluation of the signals, an independent of the cross-sectional shape 13 measurement of the profile thickness 11 can be made. The chosen measuring method will not be affected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Claims (13)

  1. Procédé pour la mesure sans contact de l'épaisseur du profil (11) et/ou de la forme du profil (12) sur des barres de coulée (1) d'une installation de coulée à plusieurs lignes (3) pour des métaux liquides, notamment pour de l'acier (4), dans lequel les épaisseurs du profil (11) ou les formes du profil (12) d'une barre de coulée (1) en format billettes, blocs, beamblank, de brames ou de brames fines sont mesurées via des capteurs (14) caractérisé en ce que,
    après sélection d'une barre de coulée (1) à mesurer, un dispositif de mesure (19) non stationnaire est déplacé dans une position de mesure (28), à la perpendiculaire du tracé d'un groupe de barres (17) des barres de coulées (1) parallèles et le processus de mesure est déclenché.
  2. Procédé selon la revendication 1,
    caractérisé en ce que,
    le dispositif de mesure (19) non stationnaire est réglé sur le centre respectif (1 b) de la barre de coulée (1).
  3. Procédé selon les revendications 1 et 2,
    caractérisé en ce que,
    le réglage de la position de mesure (28) est réalisé pendant une pause de coulée.
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que,
    pour le réglage de la position de mesure (28), le dispositif de mesure (19) est déplacé dans une position de stationnement (30) à l'extérieur de la zone de rayonnement du groupe de barres (17) ou dans une zone de maintenance(31) blindée.
  5. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que,
    il est mesuré soit l'ensemble de la forme du profil (12) d'une barre de coulée (1) ou au moins une face du profil (1 c).
  6. Installation pour la mesure sans contact de l'épaisseur du profil (11) et/ou de la forme du profil (12) sur des barres de coulée (1) d'une installation de coulée à plusieurs lignes (3) pour des métaux liquides, notamment pour de l'acier liquide (4) avec des formes (13) et dimensions de section transversale d'une barre de coulée (1) en format billettes, blocs, beamblank, de brames ou de brames fines au moyen de capteurs (14) qui sont disposés à l'intérieur d'un cadre de base (15) entourant la forme de la section transversale (13)
    caractérisée en ce que,
    à la perpendiculaire du tracé parallèle de la barre (16) du groupe de barres (17) s'écoule un guidage par rail (18) pour un cadre de base (15) refroidi à l'intérieur, déplaçable de part et d'autre, dans lequel le dispositif de mesure (19) est disposé avec les capteurs (14), les capteurs (14) communiquant avec une électronique d'évaluation (20), éloignée des barres de coulée (1).
  7. Installation selon la revendication 6,
    caractérisée en ce que,
    le guidage par rail (18) est disposé à l'extérieur de la zone d'injection (21) de la chambre de refroidissement (8).
  8. Installation selon l'une quelconque des revendications 6 ou 7,
    caractérisée en ce que,
    le cadre de base (15) refroidi à l'intérieur est couplé au moyen de liaisons flexibles par fluides (22) sur des raccords de fluides (23) ou dans la position de mesure (28) concernée, est susceptible d'être relié par l'intermédiaire d'accouplements prévus localement.
  9. Installation selon l'une quelconque des revendications 6 à 8,
    caractérisée en ce que,
    le cadre de base refroidi à l'intérieur (15) est fabriqué en acier inoxydable.
  10. Installation selon l'une quelconque des revendications 6 à 9,
    caractérisée en ce que,
    les positions de mesure (28) correspondant à chaque barre de coulée (1) sont reproductibles au moyen de fixations mécaniques.
  11. Installation selon la revendication 6,
    caractérisée en ce que,
    les capteurs (14) sont raccordés au moyen de liaisons par câbles flexibles et/ou variables (24) sur l'électronique d'évaluation (20) ou communiquent via une liaison radio sans fil.
  12. Installation selon l'une quelconque des revendications 6, 10 ou 11,
    caractérisée en ce que,
    l'électronique d'évaluation (20) est logée sous la forme d'un ordinateur de mesure (26) dans l'armoire de distribution (27) de la machine de coulée continue (2).
  13. Installation selon l'une quelconque des revendications 6, 11 et 12,
    caractérisée en ce que,
    pour une mesure bilatérale de la distance par rapport au côté du profil (1c) concerné, les capteurs (14) sont disposés symétriquement, à l'opposée, par paires, dans le cadre de base (15).
EP04014660A 2003-08-08 2004-06-23 Procédé et dispositif pour la mesure sans contact de l'épaisseur et/ou du profil de lingots métalliques continus, en particulier lingots d'acier, dans une installation de coulée continue à plusieurs lignes Expired - Lifetime EP1504832B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10336444A DE10336444A1 (de) 2003-08-08 2003-08-08 Verfahren und Einrichtung zum berührungslosen Messen der Profildicke und/oder der Profilform an Gießsträngen einer Mehrstranggießanlage für flüssige Metalle, insbesondere für Stahl
DE10336444 2003-08-08

Publications (2)

Publication Number Publication Date
EP1504832A1 EP1504832A1 (fr) 2005-02-09
EP1504832B1 true EP1504832B1 (fr) 2008-02-13

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ID=33547154

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EP04014660A Expired - Lifetime EP1504832B1 (fr) 2003-08-08 2004-06-23 Procédé et dispositif pour la mesure sans contact de l'épaisseur et/ou du profil de lingots métalliques continus, en particulier lingots d'acier, dans une installation de coulée continue à plusieurs lignes

Country Status (3)

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EP (1) EP1504832B1 (fr)
AT (1) ATE385867T1 (fr)
DE (2) DE10336444A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055530A1 (de) † 2005-11-22 2007-05-24 Sms Demag Ag Verfahren und Vorrichtung zum Anstellen von mindestens einem Rollensegment einer Strangführungseinrichtung an einen Strang

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644803A (en) * 1979-09-21 1981-04-24 Bridgestone Corp System measuring for thickness of nonmetallic sheet like object
DE3240515A1 (de) * 1982-10-30 1984-05-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zur bestimmung der spiesskantigkeit von stranggiessknueppeln waehrend des giessprozesses
US5388341A (en) * 1993-08-04 1995-02-14 Data Measurement Corporation Virtual two gauge profile system

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ATE385867T1 (de) 2008-03-15
EP1504832A1 (fr) 2005-02-09
DE10336444A1 (de) 2005-03-10
DE502004006165D1 (de) 2008-03-27

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