EP2293891B1 - Lingotière pour la coulée de métal - Google Patents

Lingotière pour la coulée de métal Download PDF

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Publication number
EP2293891B1
EP2293891B1 EP09768964.0A EP09768964A EP2293891B1 EP 2293891 B1 EP2293891 B1 EP 2293891B1 EP 09768964 A EP09768964 A EP 09768964A EP 2293891 B1 EP2293891 B1 EP 2293891B1
Authority
EP
European Patent Office
Prior art keywords
module
mould
temperature measuring
recess
wall
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.)
Active
Application number
EP09768964.0A
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German (de)
English (en)
Other versions
EP2293891A1 (fr
Inventor
Stephan Schulze
Dirk Lieftucht
Uwe Plociennik
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 Group GmbH
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SMS Siemag AG
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Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2293891A1 publication Critical patent/EP2293891A1/fr
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Publication of EP2293891B1 publication Critical patent/EP2293891B1/fr
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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/182—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by measuring temperature
    • 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
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
    • B22D11/202—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level by measuring temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B22D2/006—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the temperature of the molten metal

Definitions

  • thermocouples individually in each case provided for them individual holes in the mold.
  • the individual thermocouples are pressed with a spring force against the bottom of the hole to ensure there the contact of their measuring points with the mold material.
  • the thermocouples are inserted into the mold plate at different depths. This is particularly useful for determining the heat flux density in the mold plate.
  • the invention has the object, a known mold for casting metal with a plurality of temperature measuring devices to the effect that the cost of installation of the plurality of temperature measuring devices is reduced, but at the same time a high reliability and validity of the knife is maintained.
  • the wall of the mold has a recess for receiving the structural unit. It should be noted that the best possible heat transfer between the structural unit and the material of the mold is guaranteed. On the one hand, it is important for the depth of the recess to be matched to the depth or height of the module and, in particular, for the best possible large area between the base or the wall of the recess in the mold and the surface of the module or the measuring tips of the measuring devices Contact is formed to ensure optimum heat transfer between the module and mold wall. The heat transfer can be improved, for example, by the use of a thermal grease, which, however, must withstand the high temperatures that occur in the mold during casting in the mold.
  • the structural unit is e.g. from the cold side into a wall of the mold or mounted on this: So that the structural unit does not affect the flow of coolant in the cooling channels of the mold wall, the structural unit is mounted in this case between two adjacent cooling channels.
  • the recess for the structural unit as a lateral, preferably horizontal, hole in the wall of the mold between the hot side and the bottom of the cooling channels is formed.
  • the recess after installation of the structural unit is closed by a plate-shaped cover, preferably flush with the outer surface of the wall of the mold again. Then a heat flow through the cover is possible.
  • the module or the structural unit and the recess in the cold side of the mold are preferably in the thickness direction of the mold wall, i. transverse to the casting direction or from the cold to the hot side, stepped.
  • the grading advantageously ensures a stabilization of the module or the structural unit in the mold against tilting.
  • Temperaturmess Rosaceas
  • the temperature measuring device is arranged in the temperature measuring device recess such that its measuring tip or its measuring tips makes contact with the base or the wall of the recess.
  • the temperature measuring device may e.g. as a thermocouple or as a fiber optic. Temperature sensor may be formed, the latter allows a temperature measurement by means of the optical time domain reflectometry OTDR method or the Fiber Bragg Grating FBG method.
  • the fiber optic temperature sensors are very thin; This has the advantage that many temperature measuring points can be arranged close to each other without their signals or measurement results mutually influencing and falsifying.
  • the temperature measuring devices are arranged in pairs in the module, wherein the two temperature measuring devices, in particular thermocouples of a pair preferably protrude at different depths into the module or in the mold.
  • the temperature gauge recesses in the module are accordingly formed differently deep.
  • the temperature measuring devices are fixed in the temperature gauge recesses in the module.
  • the fixation can be done by gluing or clamping the temperature measuring devices in the corresponding recesses.
  • gluing is advantageously high heat-resistant resin, eg. B. Strain gauge DMS resin used.
  • the temperature measuring device can also be clamped in the temperature measuring device recess, in the case of thermocouples for example by means of an annular cone screw.
  • a thread with a conical spout is provided on the Temperaturmess issueds recess.
  • the thermocouple is passed through the annular cone, preferably made of copper, with external thread. This cone or cone screw clamps the thermocouple then when screwing and pressed it by the screw at the same time to the bottom of the hole.
  • the module and its thermocouple recesses or holes is produced by erosion.
  • the said quarter-shaped or stepped quartz-shaped form of the module is particularly suitable for this purpose.
  • the manufacturing process "eroding offers the advantage that bore burrs and Bore cone can be avoided, while maintaining very precise compliance or realization of the desired hole depth.
  • the one-time clamping of a component during erosion to produce a larger number of holes, the cost of erosion can be kept within limits.
  • the module is preferably made of the same material as the mold itself.
  • a central plug for the connection cables of the thermocouples on the module.
  • a central plug can be designed as a pure multi-pin connector or as a multiplexer.
  • the central plug can also be designed as a bus interface or bus module, for example a fieldbus module. Then the central plug would be able to convert the signals of the thermocouples into a bus format.
  • the bus interface or bus module should also be able to convert the conversion in the reverse direction, that is, from the bus format to a format for an actuator signal.
  • thermocouples can be connected to a suitable evaluation or a control device.
  • FIG. 1 a shows the cold side of a mold, more precisely a (side) wall 100 of the mold in a plan view.
  • the recesses 120 and thus also the structural units 500 or 500 ', if installed therein, are each arranged between two adjacent cooling channels.
  • FIG. 1 b) shows a section through the wall 100 of the mold according to Figure a) in the casting direction. It can be seen the recess 120 'for the structural unit and the cooling channel 200. The bottom of the recess 120 reaches very close to the hot side H of the mold wall 100 zoom. In this way, it is ensured that the thermocouples actually detect the temperature distribution in the vicinity of the hot side H of the mold in the most realistic manner possible.
  • FIG. 1c) shows a cross section through the wall 100 of the mold according to FIG. 1 a) transverse to the casting direction.
  • This figure clearly shows the different cross-sections for the recesses 120 in the depth of the mold wall 100: strictly quarry-shaped, not stepped, according to a first embodiment 120 or stepped according to a second embodiment.
  • the width of the recess 120 'or the structural unit 500' tapers in the region of greater depths. Due to this grading a greater rigidity of the structural unit is achieved when installed in the recess.
  • FIG. 2 illustrates the first embodiment for the structural unit 500.
  • the temperature gauge recesses 420 for the thermocouples 300 in the module 400 are exemplified in the form of grooves on the sidewalls of the module.
  • the formation of the grooves on the side edges has the advantage that the thermocouples are accessible after insertion into the grooves;
  • the measuring tip 310 of the thermocouples 300 may be soldered to the bottom of the groove.
  • the thermocouples are arranged in pairs opposite one another. The thermocouples involved in such a pair protrude at different depths into the module; Compare the distances A and B respectively between the measuring tips 310 of the thermocouples and the hot-side boundaries H 'of the modules. These different distances A and B are required for a reliable calculation of the heat flux density in the mold wall.
  • FIG. 3 shows the first embodiment of the module or the structural unit according to FIG. 2 supplemented with a central plug 600 on the module 400.
  • a central plug 600 To the central plug 600 all connection cables 330 of the thermocouples 300 can be connected to the module and bundled. It allows the transmission of the signals of all thermocouples via preferably only a single, but possibly multi-core output cable 700.
  • the central connector may be formed, for example in the form of a multi-pin connector.
  • the plug can also be designed as a multiplexer.
  • the central plug can also be designed as a bus interface and the cable 700 as a bus line.
  • the bus interface also called bus module, is then designed to convert the signals of the thermocouples into the format or protocol of the particular bus used.
  • FIG. 4 shows a second embodiment of the module according to the invention, here in the form of a stepped version.
  • the stage is in FIG. 4 each partially traversed in the form of vertical lines, partially indicated by dashed lines in each case with the reference symbol S. Especially vivid is the level in FIG. 1 a) to recognize.
  • FIG. 5 shows a measuring arrangement of a mold for round, rectangle and square.
  • FIG. 6 shows a measuring arrangement of a mold for Beam Blank.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Claims (12)

  1. Lingotière pour la coulée continue de métal, comprenant une multitude de dispositifs de mesure de la température (300) qui sont disposés dans une paroi (100) de la lingotière, pour l'enregistrement de la distribution de la température dans la paroi lors de la mise en oeuvre d'une coulée continue, dans laquelle les dispositifs de mesure de la température (300) sont disposés dans un module (400) en étant positionnés à demeure les uns par rapport aux autres et forment ensemble avec le module une unité intégrée (500, 500') ; dans laquelle le module (400, 400') présente au moins un évidement (420) de dispositif de mesure de la température sous la forme d'un alésage ou d'une rainure, pour que vienne s'y loger respectivement un des dispositifs de mesure de la température ; et dans laquelle l'unité intégrée (500, 500') pour l'enregistrement de la distribution de la température est fixée dans ou contre la paroi (100) de la lingotière, caractérisée en ce que les dispositifs de mesure de la température sont réalisés sous la forme de capteurs de la température à fibres optiques, qui permettent de procéder à une mesure de la température au moyen du procédé de réflectcmétrie optique temporelle OTDR ou de la technologie des réseaux de Bragg sur fibres FBG, et en ce que les évidements des dispositifs de mesure de la température (420) sont disposés et sont réalisés dans le module (400) de telle sorte que les capteurs de température à fibres optiques sont disposés par paires et dans des positions réciproquement adjacentes dans le module, et en ce que les capteurs de température individuels à fibres optiques d'une paire sont disposés à des profondeurs différentes dans, respectivement sur le module.
  2. Lingotière selon la revendication 1, caractérisée en ce que la paroi (100) de la lingotière présente un évidement (120, 120') pour que vienne s'y loger l'unité intégrée (500, 500').
  3. Lingotière selon la revendication 2, caractérisée en ce que l'évidement (120) pour l'unité intégrée (500, 500') est disposé du côté froid de la paroi de la lingotière entre les canaux de refroidissement (200) de cette dernière.
  4. Lingotière selon l'une quelconque des revendications 2 ou 3, caractérisée en ce que le module (400') et l'évidement (120') sont réalisés en formant un gradin dans la direction allant du côté froid vers le côté chaud de la lingotière.
  5. Lingotière selon la revendication 2, caractérisée en ce que l'évidement (120, 120') pour l'unité intégrée (500, 500') est réalisé sous la forme d'un alésage latéral de préférence horizontal dans la paroi de la lingotière entre le côté chaud de celle-ci et la base des canaux de refroidissement.
  6. Lingotière selon l'une quelconque des revendications 2 à 5, caractérisée en ce que l'évidement (120, 120'), après l'incorporation de l'unité intégrée (500, 500'), est fermé via un revêtement en forme de plaque, de préférence en alignement avec la surface externe de la paroi de la lingotière.
  7. Lingotière selon la revendication 1, caractérisée en ce que l'évidement (420) du dispositif de mesure de la température est réalisé avec un diamètre différent en formant un gradin, dans le sens de sa profondeur.
  8. Lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de mesure de la température (300) est introduit par collage ou inséré de manière amovible dans l'évidement (420) du dispositif de mesure de la température, de telle sorte que la pointe de mesure ou les pointes de mesure (310) du dispositif de mesure de la température (300) entrent respectivement en contact avec la base ou avec la paroi de l'évidement (420) du dispositif de mesure de la température.
  9. Lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que le module et ses évidements des dispositifs de mesure de la température sont réalisés au moins en partie par érosion.
  10. Lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que le module et/ou le revêtement pour la fermeture de l'évidement (120) sont fabriqués à partir du même matériau que celui de la lingotière, par exemple en cuivre.
  11. Lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce qu'on prévoit, dans ou sur le module, un connecteur central (600) pour la réception et l'assemblage en faisceau des cordons d'alimentation (330) de tous les dispositifs de mesure de la température (300) sur le module (400).
  12. Lingotière selon la revendication 11, caractérisée en ce que le connecteur central est réalisé sous la forme d'un multiplexeur ou d'une interface de bus, respectivement d'un module de bus.
EP09768964.0A 2008-06-25 2009-06-23 Lingotière pour la coulée de métal Active EP2293891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008029742A DE102008029742A1 (de) 2008-06-25 2008-06-25 Kokille zum Gießen von Metall
PCT/EP2009/004504 WO2009156115A1 (fr) 2008-06-25 2009-06-23 Lingotière pour la coulée de métal

Publications (2)

Publication Number Publication Date
EP2293891A1 EP2293891A1 (fr) 2011-03-16
EP2293891B1 true EP2293891B1 (fr) 2014-12-24

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EP09768964.0A Active EP2293891B1 (fr) 2008-06-25 2009-06-23 Lingotière pour la coulée de métal

Country Status (11)

Country Link
US (1) US8162030B2 (fr)
EP (1) EP2293891B1 (fr)
JP (1) JP5579174B2 (fr)
KR (1) KR101257721B1 (fr)
CN (1) CN102076442B (fr)
CA (1) CA2728866C (fr)
DE (1) DE102008029742A1 (fr)
RU (1) RU2448804C1 (fr)
TW (1) TWI454325B (fr)
UA (1) UA95591C2 (fr)
WO (1) WO2009156115A1 (fr)

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JP2005125402A (ja) 2003-10-27 2005-05-19 Hitachi Cable Ltd 鋳塊の連続鋳造方法及び鋳塊の品質判定方法
EP1591627A1 (fr) 2004-04-27 2005-11-02 Siemens Aktiengesellschaft Installation de réglage pour un compresseur et utilisation d'un réseau de Bragg dans une installation de réglage
DE102004031324A1 (de) 2004-06-29 2006-01-19 Bayer Technology Services Gmbh Temperaturprofilmessung in Reaktoren mit Faser-Bragg-Gittern
KR200376771Y1 (ko) 2004-12-02 2005-03-08 주식회사 로템 연속 주조용 롤 표면 온도 측정장치
JP4709569B2 (ja) * 2005-04-04 2011-06-22 新日鉄エンジニアリング株式会社 連続鋳造用鋳型の熱電対取付構造
JP4688755B2 (ja) * 2006-08-17 2011-05-25 新日本製鐵株式会社 鋼の連続鋳造方法
US7840102B2 (en) 2007-01-16 2010-11-23 Baker Hughes Incorporated Distributed optical pressure and temperature sensors

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UA95591C2 (ru) 2011-08-10
CA2728866A1 (fr) 2009-12-30
CN102076442A (zh) 2011-05-25
DE102008029742A1 (de) 2009-12-31
US8162030B2 (en) 2012-04-24
WO2009156115A1 (fr) 2009-12-30
JP5579174B2 (ja) 2014-08-27
US20110186262A1 (en) 2011-08-04
JP2011525426A (ja) 2011-09-22
TWI454325B (zh) 2014-10-01
KR20110017894A (ko) 2011-02-22
CA2728866C (fr) 2013-01-22
EP2293891A1 (fr) 2011-03-16
TW201016346A (en) 2010-05-01
KR101257721B1 (ko) 2013-04-24
RU2448804C1 (ru) 2012-04-27
CN102076442B (zh) 2014-04-30

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