EP1757385B1 - Parois large d' une lingotiére en forme d'entonnoir - Google Patents

Parois large d' une lingotiére en forme d'entonnoir Download PDF

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Publication number
EP1757385B1
EP1757385B1 EP06016823A EP06016823A EP1757385B1 EP 1757385 B1 EP1757385 B1 EP 1757385B1 EP 06016823 A EP06016823 A EP 06016823A EP 06016823 A EP06016823 A EP 06016823A EP 1757385 B1 EP1757385 B1 EP 1757385B1
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EP
European Patent Office
Prior art keywords
mould
wide side
recess
recesses
mould wide
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.)
Not-in-force
Application number
EP06016823A
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German (de)
English (en)
Other versions
EP1757385A3 (fr
EP1757385A2 (fr
Inventor
Hans Streubel
Jörn HOFFMEISTER
Markus Dr. Reifferscheid
Gereon Fehlemann
Thomas Lamberti
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
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SMS Siemag AG
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Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP1757385A2 publication Critical patent/EP1757385A2/fr
Publication of EP1757385A3 publication Critical patent/EP1757385A3/fr
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Publication of EP1757385B1 publication Critical patent/EP1757385B1/fr
Not-in-force 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds

Definitions

  • the invention relates to a Kokillenbreitseite a funnel mold for casting metal, especially steel.
  • Such Kokillenbreitseite is for example from the German patent application DE 198 29 606 A1 known.
  • the wide side of the mold disclosed therein has a plurality of groove-shaped cooling channels on its water side, referred to below as the rear side, which are tapered to their upper edge due to the funnel-shaped outer surface or pouring side of the pouring plate.
  • recesses are provided on the back of the Kokillenbreitseite, each extending in the longitudinal direction of the cooling channels over the entire height of the broad side and each relate to a cooling channel.
  • the recesses are filled with suitably sized patches.
  • the patches each protrude a little way into the cooling channels and thus serve to define the size of the cross section of the cooling channels in the broad side.
  • undercuts are introduced. The formation of the undercuts and the manufacturing of the filler pieces with a suitable for limiting the cross section of the cooling channels complex profile cross-section is structurally quite complex and therefore expensive.
  • the invention has for its object to simplify a known Kokillenbreitseite for a funnel mold with multiple cooling channels in terms of setting a substantially constant flow rate of a cooling medium through the cooling channel constructive.
  • the chill broad side according to the invention is characterized in that the recess is formed so that it crosses the cooling channels transversely to the longitudinal direction, that it is limited in its extent in the longitudinal direction of the cooling channels at least a portion of the cooling channels, and in this longitudinal direction a rectangular and / or wedge-shaped cross-section, so that the depth of the cooling channels in the Kokillenbreitseite in the region of the recess passing through in accordance with the cross section of the recess in the longitudinal direction of the cooling channel is adjustable and filled with corresponding filling pieces.
  • the claimed shape of the recess transversely to the longitudinal direction of the cooling channels advantageously allows, in cooperation with a filler filling the recess a simple and inexpensive way for local adjustment of the desired flow rate of a cooling medium through the cooling channel in the region of the recess.
  • the filler may simply be elongated so that it fills the recess; In particular, it does not need to be formed in the manner of 3-dimensional angled, so that it not only protrudes into the recess, but at the same time a piece in the cooling channel, as is the case in the above-mentioned prior art.
  • the depth of the recess or the thickness of the filling piece filling it define the size of the residual cross section of the cooling channel remaining in the casting plate or the extent to which the cross section of the cooling channel is locally reduced in the area of the recess that is to be intersected.
  • the cross-section of the recess in the longitudinal direction of the cooling channels are rectangular and the associated filling piece is formed cuboid; Both the recess and the filler are then particularly simple and inexpensive to manufacture. This then results in a local step-shaped reduction of the cross section of the cooling channels in the funnel region, whereby the desired flow cross section is adjusted. If the filler is formed on the contact surface to the cooling channels with an inclined surface and the recess also formed with a compatible inclined surface, so can be a continuous cooling duct cross section set.
  • the formation of the recess and thus also the adjustment of the flow rate of the cooling medium symmetrical to the mold center has the advantage that the cast metal is cooled symmetrically to the mold center; In this way, an uneven casting quality over the casting width of the cast metal is prevented.
  • the cooling ducts originally provided in the rear side of the chill broadside taper sharply, for example, due to the funnel-shaped design of the chill mold towards the upper edge of the chill mold, it is advantageous to set the desired flow rate of the cooling medium not only at one point but simultaneously at several points along the cooling channels.
  • the individual recesses have different depths or corresponding filling pieces corresponding complementary thicknesses, based on the desired course of the depth of the cooling channels in the mold plate.
  • the immediately adjacent arrangement of a plurality of recesses leads to an overall recess in the back of the Kokillenbreitseite with terraced floor, the depth of the individual stages of the terraced floor preferably increases with increasing distance from the upper edge of the mold.
  • the formation of the overall recess at least in the funnel area has the advantage that a single total filling piece can be prepared for covering or filling the overall recess. Compared to individual filler pieces, the placement or arrangement of the one Automatchell Facultys on the back of Kokillenbreitseite is less time consuming.
  • the invention provides that remain in the molding of the cooling channels and the recesses on the back of Kokillenbreitseite fixing webs; these are then formed integrally with the Kokillenbreitseite.
  • the fastening webs have threads.
  • the filler can be over its entire thickness in one piece, multi-piece, or layered on built. It is made of either a thermally conductive material, preferably copper or a copper alloy or alternatively it may be made of a non-magnetic material, preferably made of plastic.
  • FIG. 1 shows the back of a Kokillenbreitseite 100 a funnel mold.
  • the size of the funnel opening 108 of the mold is preferably in a range between 5 and 30 mm.
  • groove-shaped cooling channels 110 in the form of cooling slots were milled into the casting plate from the rear side R of the broad side of the mold 100.
  • the cooling channels are tapered towards the upper edge 105 of the funnel mold, because there the thickness of the broad side of the mold is reduced.
  • bores 120 on the back of Kokillenbreitseite which serve for receiving fastening bolts for attachment of a channel box (not shown here) on the back of Kokillenbreitseite 100.
  • the water tank is used to provide the cooling water for flowing through the cooling channels 110 in the Kokillenbreitseite 100th
  • the cooling channels 110 are relatively narrow in the present invention compared to otherwise conventional cooling channels; their width is typically only between 5 and 15 mm. At the same time, for example, its depth is between 10 and 25 mm. Due to the aforementioned taper, that is, a change in the depth of the cooling slots over the length as well as the mold width and the flow rate of the cooling water and thus the removal of heat in individual heights and widths of Kokillenbreitseite would be different.
  • the temperature profile of the Kokillenbreitseite on their back opposite working or Eing manseite and is also influenced by the wall thickness of the copper in front of the cooling channels 110 to the working side.
  • FIGS. 2 to 5 show a first embodiment of the inventive design of a Kokillenbreitseite, in particular for recesses on the back and for associated filler.
  • FIG. 2 shows, on the one hand, a rear side R of a chill broadside prepared according to the first embodiment with a plurality of corresponding recesses of different depths and, on the other hand, suitable filling pieces 140-1,... 5 for filling the recesses A1,..., A5.
  • the recesses A1, ..., A5 according to the first embodiment can be seen that they are formed symmetrically to Kokillenmitte out, so that transversely to the longitudinal direction of the cooling channels 110, a symmetrical heat distribution can be realized.
  • the example shown here has five recesses A1, ..., A5 of different depth, which are arranged immediately adjacent to each other.
  • the five different recesses are on the one hand in the open back R of the chill broadside FIG. 2 to recognize; but they are also in the same way FIG. 2 shown five different filling pieces 140-1, ...- 5 according to the first embodiment for filling the corresponding recesses represented.
  • the cooling channels in the region of the funnel opening 108 are tapered towards the upper edge 105 of the mold, as in FIG. 1 1, it is necessary for realizing a substantially constant flow rate of cooling water through the cooling passages in this area that the recesses A1, ... A5 in the upper portion of the chill broadside 100, where the cooling passages 110 are not formed very deeply, be made less deep are as in the lower part of the Kokillenbreitseite, where the cooling channels have a larger cross-section due to their greater depth. It then results in the FIG. 2 recognizable terraced formation of the back of the Kokillenbreitseite; In this case, the difference between the depths of two adjacent recesses is for example between 0.5 and 4 mm, but preferably between 1 and 2 mm.
  • the filler pieces 140-1, ..., -5 in plan view of the back R of Kokillenbreitseite 100 are substantially rectangular or U-shaped and each have one constant thickness corresponding to the depth of the recesses A1, ..., A5 to be covered by them.
  • the holes 120 remain as in FIG. 2 can be seen, obtained in the preparation of the recesses and cooling channels on the back of Kokillenbreitseite 100 by the environment of these holes 120 is excluded from the recess.
  • the contact surfaces of all fastening webs are preferably in one plane and thus offer a good opportunity to fasten the mold plate on the water tank without mechanical stresses.
  • the holes have on their inside a thread for fixing a fastening bolt, wherein the depth of the threaded hole can be up to 5 mm deeper than the depth of the adjacent cooling slots. In general, the depth of the cooling channels 110 in the region of the threads to equalize the temperature profile on the working side of Kokillenbreitseite 100 may be locally increased.
  • individual filler pieces 140-1, ..., -5 can be connected together to form a one-piece Obstll Giant.
  • the individual patches or the Obstllmaschine can be constructed in one piece or in the form of a sandwich, that is layered.
  • the filler pieces 140-1, ..., -5 are made of heat-conducting material in the form of a filler plate made of copper or a copper alloy.
  • the filler can also be made of a non-magnetic material, preferably made of plastic.
  • FIG. 3 shows the off FIG. 2 known Kokillenbreitseite 100 and the associated filling pieces 140-1, ..., -5 in the assembled state.
  • the thicknesses of the filling pieces 140-1, ..., -5 are formed slightly smaller than the depths of the recesses which they are intended to cover, so that in the assembled state the mold plate rests only in the edge region and the fastening webs on the water tank.
  • FIG. 4 shows a first cross section along the section line IV - IV through the Kokillenbreitseite according to FIG. 3 , It can be seen that the cooling channel 110 was left in its original cross section in the upper region of the broad side of the mold, that is to say in the region of the mold opening; There, the depth of the cooling channel 110 is not reduced by a filler. Furthermore, it can be seen that the profile of the depth of the cooling channel 110 in the Kokillenbreitseite 100 in the region of the intersecting recesses due to the there attached patches 140-2, ..., -4 is set stepwise locally.
  • FIG. 5 shows a second cross section along the section line V - V through the in FIG. 3 shown assembled chalkboard broadside 100.
  • the for FIG. 4 made statements apply to FIG. 5 alike, with the only difference that the cross section of the cooling channel 110 was also set in the upper part of Kokillenbreitseite 110 by a filler 140-5 and thus the flow rate of the cooling water there.
  • FIGS. 6 to 9 represent a second embodiment according to the invention, wherein like technical features are designated by like reference numerals.
  • the second embodiment differs from the first embodiment in the form of the patches 140-1, 140-2, 140-3 according to the second embodiment, unlike the first embodiment not rectangular, but U-shaped. Due to their modified embodiment, these patches in the FIGS. 6 to 9 each designated with a single quote in their reference characters. Analogously, the recesses A1 ', A2' and A3 'provided for these filling pieces are now likewise U-shaped in the second exemplary embodiment.
  • the fourth filling piece 140-4 was also already U-shaped in the first embodiment and thus remains unchanged in the second embodiment.
  • FIG. 6 shows analogously to FIG. 2 the back side R of the chill broad side with the recesses A1 ', A2', A3 'and A4 formed according to the second embodiment of the invention and the associated filling pieces 141-1', 140-2 ', 140-3' and 140-4 for filling the cutouts.
  • FIG. 7 shows the back side R of the Breitumblekokille with inserted filling pieces according to the second embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (17)

  1. Paroi large (100) d'une lingotière en forme d'entonnoir pour le coulage de métal, en particulier d'acier, comprenant :
    - des canaux de refroidissement (110) en forme de rainure dans la face arrière (R) de la plaque (100) de la lingotière ;
    - au moins un évidement (A1, ..., A5) dans la face arrière ; et
    - au moins une pièce de remplissage (140-1, ..., 140-5) pour la fermeture au moins partielle de l'évidement ;
    caractérisée en ce que l'évidement (A1, ..., A5) est façonné de manière telle qu'il croise les canaux de refroidissement (110) transversalement à leur sens longitudinal ; et en ce qu'il est limité dans son extension dans le sens longitudinal du canal de refroidissement au moins sur une section partielle du canal de refroidissement et présente dans ce sens longitudinal une section rectangulaire et/ou en forme de coin, de manière telle que la profondeur du canal de refroidissement (110) dans la paroi large (100) de la lingotière au niveau des évidements qui se croisent peut être réglée par étapes et/ou linéairement et est réalisée avec des pièces de remplissage (140-1, ..., 140-5) correspondantes.
  2. Paroi large (100) de lingotière selon la revendication 1, caractérisée en ce que l'ouverture en forme d'entonnoir est située entre 5 et 30 mm.
  3. Paroi large (100) de lingotière selon la revendication 1 ou 2, caractérisée en ce que l'évidement (A2, ..., A4) est réalisé symétriquement par rapport au centre de la lingotière.
  4. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que l'évidement (A1, ..., A5) et la pièce de remplissage associée sont réalisés en forme de rectangle ou de préférence en forme de U en vue du dessus sur la face arrière (R) de la paroi large (100) de la lingotière.
  5. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que plusieurs évidements (A1, ..., A5) présentant à chaque fois une profondeur différente sont réalisés dans la face arrière de la paroi large (100) de la lingotière répartis sur la hauteur de la paroi large de la lingotière, les profondeurs des différents évidements augmentant au fur et à mesure de l'éloignement du bord (105) supérieur et du centre de la lingotière.
  6. Paroi large (100) de lingotière selon la revendication 5, caractérisée en ce que la différence de profondeur entre deux évidements (A1, A2) adjacents est comprise entre 0,5 et 4 mm, de préférence entre 1 et 2 mm.
  7. Paroi large (100) de lingotière selon la revendication 5 ou 6, caractérisée en ce que lesdits plusieurs évidements (A1, ..., A5) sont disposés de manière immédiatement adjacente et forment un évidement global dans la face arrière de la plaque de coulée avec un fond façonné en forme de terrasse.
  8. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée par
    au moins une âme de fixation (130) réalisée sur la face arrière (R) de la paroi large (100) de coquille, de préférence en une pièce avec celle-ci, destinée à la fixation de la paroi large (100) de la coquille avec sa face arrière à un bac à eau servant à la mise à disposition de l'eau de refroidissement pour le canal de refroidissement (110), l'âme de fixation (130) restant en place lors de la réalisation du canal de refroidissement en forme de rainure et de l'évidement dans la face arrière de la paroi large (100) de la lingotière.
  9. Paroi large (100) de lingotière selon la revendication 8, caractérisée en ce que l'âme de fixation présente un trou (120) et un filet.
  10. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que la pièce de remplissage (140-1, ..., -5) est réalisée, en ce qui concerne ses dimensions extérieures et son épaisseur, au moins de manière approximativement complémentaire à l'évidement (A1, ..., A5), de manière telle qu'elle remplit le volume formé par l'évidement.
  11. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que la pièce de remplissage (140-1, ..., -5) est réalisée en une pièce, en plusieurs pièces ou en couches.
  12. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que les pièces de remplissage (140-1, ..., -5) sont reliées les unes avec les autres en une pièce de remplissage globale pour le recouvrement de plusieurs évidements (A1, ..., A5), qui représente la face arrière de la paroi large (100) de la lingotière dans une réalisation de préférence complètement plane.
  13. Paroi large (100) de lingotière selon l'une quelconque des revendications précédentes, caractérisée en ce que la pièce de remplissage (140-1, .., -5) est réalisée sous forme de tôle de remplissage en un matériau caloporteur, de préférence en cuivre ou un alliage de cuivre.
  14. Paroi large (100) de lingotière selon l'une quelconque des revendications 1 à 13, caractérisée en ce que la pièce de remplissage (140-1, ..., -5) est réalisée en un matériau non magnétique, de préférence en un matériau synthétique.
  15. Paroi large (100) de lingotière selon l'une quelconque des revendications 1 à 14, caractérisée en ce que les évidements (A1 ... A5) sont réalisés au moins partiellement en forme de U.
  16. Paroi large (100) de lingotière selon l'une quelconque des revendications 1 à 15, caractérisée en ce que la géométrie des différents canaux de refroidissement (110) et donc la vitesse d'eau est réalisée de manière différente pour le réglage d'un profil de température souhaité de la face de travail de la plaque de la lingotière.
  17. Paroi large de lingotière selon l'une quelconque des revendications 1 à 16, caractérisée en ce que les différentes pièces de remplissage (140-1, ..., - 5) sont par exemple assemblées par brasage tendre ou par collage.
EP06016823A 2005-08-27 2006-08-11 Parois large d' une lingotiére en forme d'entonnoir Not-in-force EP1757385B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005040634A DE102005040634A1 (de) 2005-08-27 2005-08-27 Kokillenbreitseite einer Trichterkokille

Publications (3)

Publication Number Publication Date
EP1757385A2 EP1757385A2 (fr) 2007-02-28
EP1757385A3 EP1757385A3 (fr) 2008-12-10
EP1757385B1 true EP1757385B1 (fr) 2010-03-24

Family

ID=37491967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016823A Not-in-force EP1757385B1 (fr) 2005-08-27 2006-08-11 Parois large d' une lingotiére en forme d'entonnoir

Country Status (4)

Country Link
US (1) US7798202B2 (fr)
EP (1) EP1757385B1 (fr)
AT (1) ATE461768T1 (fr)
DE (2) DE102005040634A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005041296A1 (de) * 2005-08-31 2007-04-05 Trw Automotive Gmbh Gassackmodul
DE102006051171A1 (de) 2006-10-26 2008-04-30 Sms Demag Ag Stranggießkokille
DE102008032672A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Stranggießkokille
CN102112255B (zh) * 2008-08-06 2014-05-07 Sms西马格股份公司 用于液态金属、特别用于液态钢的连续铸造金属铸型
DE102009060240A1 (de) * 2009-12-23 2011-06-30 SMS Siemag AG, 40237 Platte mit Kühlkanälen
DE102018123948B3 (de) 2018-09-27 2019-09-12 Kme Germany Gmbh & Co. Kg Kokillenplatte

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595302A (en) * 1967-05-11 1971-07-27 Schloemann Ag Cooling structure for continuous-casting mold
JPS5731449A (en) * 1980-07-31 1982-02-19 Kouka Kuroomu Kogyo Kk Mold for continuous casting of steel
DE19826522A1 (de) * 1998-06-15 1999-12-16 Schloemann Siemag Ag Kokillenwand einer Stranggießkokille
DE19829606A1 (de) * 1998-07-02 2000-01-05 Schloemann Siemag Ag Breitseite einer Brammenkokille
DE19842674A1 (de) * 1998-09-17 2000-03-23 Schloemann Siemag Ag Kokillenwand einer Stranggießkokille
DE19903929A1 (de) 1999-02-01 2000-08-03 Sms Demag Ag Kokillenplatte einer Kokille mit trichterförmigem Eingießbereich zum Stranggießen von Metall
DE10056910A1 (de) * 2000-11-16 2002-05-29 Sms Demag Ag Knüppel- und Blockkokille mit partiell geregelter Wärmeabfuhr über Kokillenumfang und Kokillenhöhe

Also Published As

Publication number Publication date
EP1757385A3 (fr) 2008-12-10
DE502006006494D1 (de) 2010-05-06
US7798202B2 (en) 2010-09-21
DE102005040634A1 (de) 2007-03-01
ATE461768T1 (de) 2010-04-15
EP1757385A2 (fr) 2007-02-28
US20080073483A1 (en) 2008-03-27

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