EP3441157A1 - Procédé et dispositif pour la coulée continue d'un produit métallique - Google Patents

Procédé et dispositif pour la coulée continue d'un produit métallique Download PDF

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Publication number
EP3441157A1
EP3441157A1 EP18183113.2A EP18183113A EP3441157A1 EP 3441157 A1 EP3441157 A1 EP 3441157A1 EP 18183113 A EP18183113 A EP 18183113A EP 3441157 A1 EP3441157 A1 EP 3441157A1
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EP
European Patent Office
Prior art keywords
strand
cooling section
region
cooling
edge regions
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
EP18183113.2A
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German (de)
English (en)
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EP3441157B1 (fr
Inventor
Thomas Heimann
Uwe Plociennik
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SMS Group GmbH
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SMS Group GmbH
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Filing date
Publication date
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Publication of EP3441157A1 publication Critical patent/EP3441157A1/fr
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Publication of EP3441157B1 publication Critical patent/EP3441157B1/fr
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Anticipated expiration legal-status Critical

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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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
    • 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
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • 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
    • B22D11/141—Plants for continuous casting for vertical casting
    • 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
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling

Definitions

  • the invention relates to a method for the continuous casting of a metallic product according to the preamble of claim 1, and to a corresponding continuous casting plant according to the preamble of claim 11.
  • the liquid metal is poured continuously in a mold, where it forms a first strand shell.
  • the strand emerges downwards from the mold, wherein the strand is subsequently transported along a strand guide and transferred into a bending radius in a so-called bending region, in order thereby to achieve a deflection of the strand in the direction of the horizontal.
  • the strand guide further includes a so-called straightening region, in which the strand is then completely deflected in the horizontal direction. In this straightening area, strains occur on an upper side (loose side) of the strand, which can lead to cracks or surface cross cracks.
  • the strand during continuous casting by the two-dimensional heat radiation cooled at its edges more than in the middle of the strand. This implies the danger of edge cracks. Lower cooling of the strand at its edges attempts to counteract this effect. Accordingly, in a conventional continuous casting according to Fig. 8 the amount of spray water in the edge regions of the strand - compared to an area in the middle of the strand - reduced, which then leads to less cooling in the edge regions and consequently to the generation of higher edge temperatures. Such a reduced cooling of the edge regions of the strand takes place in a so-called Fig. 8 is indicated and in the conveying direction of the strand in particular in front of the straightening area I, and possibly also within the straightening, is. Only after the short cooling section or the straightening area I is the strand then again cooled evenly over the entire strand width (also in Fig. 8 indicated).
  • the object of the invention is to achieve a uniform sump tip over the strand width during the continuous casting of a metallic product, without the edge temperature dropping below the critical temperature determined by the course of the ductility curve.
  • the invention provides a method for continuous casting of a metallic product in which a strand of the metallic product emerges continuously from a mold, in particular vertically downwards, in a continuous casting plant and is subsequently transported along a strand guide in a conveying direction.
  • the strand is deflected in a directional region in the horizontal direction, wherein the edge regions of the strand within a Minderkühlabitess which is provided at least in the conveying direction before the straightening region and preferably also within the straightening region, reduced be cooled as compared to a horizontal region of the strand guide, which lies in the conveying direction after the straightening area.
  • the edge regions of the strand are cooled at least as strongly as a central region of the strand in an intensive cooling section of the strand guide, which starts immediately after the strand emerges from the mold and lies in the conveying direction before the minor cooling section.
  • the invention also provides a continuous casting plant which serves to produce a metallic product.
  • This continuous casting plant comprises a mold, and a strand guide adjoining the mold, along which a strand issuing from the mold, in particular vertically downwards, can be transported in a conveying direction.
  • the strand guide has a straightening area, through which the strand can be deflected in the horizontal direction.
  • the strand guide has an at least in the conveying direction in front of the straightening area provided on the cooling section, in which the edge regions of the strand are cooled less than compared to a horizontal region of the strand guide, which lies in the conveying direction after the straightening.
  • the minimum cooling section can also be provided within the straightening area.
  • the strand guide Immediately after the strand has emerged from the mold, the strand guide has an intensive cooling section lying in the conveying direction in front of the minor cooling section, in which the edge regions of the strand can be cooled at least as strongly as a central region of the strand.
  • the invention is thus based on the essential knowledge that in the Intensive cooling section, the edge regions of the strand are cooled at least as strong as the central region, so that this type of cooling completely affects the liquid strand core, and thus the formation of a desired uniform or uniform Sumpfspitze the strand across its width.
  • the length difference in the sump tip over the strand width is at least reduced. Accordingly, over the strand width uniform bottom tip is realized for the strand.
  • the above-described cooling strategy takes place in any case while maintaining the condition that the minimum temperature determined by the ductility curve is not undershot along the entire length of the strand guide, and thus also within or along the intensive cooling section.
  • the intensive cooling section in which the edge regions of the strand are cooled at least as strong as the central region of the strand, be provided within a first third of the length of the continuous casting, calculated from the Kokillenaustritt the strand. Subsequent to the intensive cooling section, the cooling of the edge regions of the strand is then reduced or reduced in the minor cooling section. This ensures that the temperature of the strand does not fall below the critical temperature determined by the ductility curve even in its edge regions or near-edge zones. This is especially true for those areas of the strand where additional stresses occur, e.g. in the bending area and / or in the straightening area. As a result, according to the invention, the formation of possible surface cracks in the strand is avoided even in the minor cooling section of the strand guide.
  • the edge regions of the strand are cooled more than within the intensive cooling section of the strand guide the central area of the strand.
  • This can be conveniently achieved in that the specific amounts of water in the edge control loops are higher than the amounts of water, which is applied to the central region of the strand.
  • a temperature rise for the strand between these two cooling sections does not become too high.
  • a so-called rewarming factor WEF (° C / (mm * sec )]
  • WEF Difference between the temperature T 1 at a first measuring point P 1 and the temperature T 2 at a second measuring point P 2 / average thickness of the strand shell at the measuring points P 1 and P 2 / Transport time of the strand between the measuring points P 1 and P 2 ,
  • the respective current position or position of the sump tip is checked or taken into account.
  • a calculation of the sump length profile over the strand width is made. If it is determined on the basis of this calculation that the computed sump tip difference is too high in comparison to a predetermined maximum sump tip difference, which represents an allowed upper limit, then the cooling in the edge regions of the strand is amplified according to one of the two variants mentioned. Otherwise, namely, in the event that the detected sump tip difference should not be too high, the cooling in the intensive cooling section is not further enhanced.
  • the intensive cooling section comprises at least one cooling zone with additional cooling nozzles, which are associated with an edge region of the strand and can be switched on to reinforce the cooling of the edge regions of the strand.
  • Fig. 1 is a continuous casting 10 according to the invention shown in principle simplified in a side view.
  • the continuous caster 10 is used to produce a metallic product 11, and for this purpose comprises a mold 12 and an adjoining strand guide 14, along which one of the mold 12 preferably downwardly emerging strand S of the metallic product 11 is transported in a conveying direction F.
  • a plurality of support rollers 2 are arranged, wherein spray water 4 is sprayed onto the strand S, for the purpose of cooling the bar S.
  • the strand S is marked with the reference line "5", the strand still has a liquid sump.
  • the sump tip of the strand S is indicated by the reference numeral "6".
  • the strand S is completely solidified, eg at the in Fig. 1 with the reference line "11d" marked position.
  • a water cooling is also provided along the strand guide 14, which is marked with the reference line "8".
  • the strand guide 14 of the continuous caster 10 comprises a straightening region I, by means of which the strand S is completely deflected in the horizontal direction. Furthermore, the strand guide 14 comprises a bending region II, through which the strand S, after it has emerged from the mold 12, is deflected in the direction of the horizontal.
  • the straightening area I and the bending area II are shown in FIG Fig. 1 each simplified symbolized by dashed rectangles.
  • the conveying direction in which the strand S is transported along the strand guide 14 of the continuous casting plant 10 is shown in FIG Fig. 1 denoted by "F".
  • the strand guide 14 comprises a minimum cooling section 16 which, viewed in the conveying direction F of the strand S, lies upstream or in front of a horizontal region 18 of the strand guide 14.
  • the minor cooling section 16 can be designed such that it detects the straightening region I at least partially or completely.
  • the minimum cooling section 16 of the strand guide 14 is characterized in that the cooling zones provided therein are designed such that the edge regions of the strand S are cooled in a reduced manner compared to the horizontal region 18 of the strand guide 14.
  • the strand guide 14 has an intensive cooling section 20, which begins immediately after the emergence of the strand S from the mold 12 and - as in Fig. 1 illustrated - in the conveying direction F seen before the minor cooling section 16 is located.
  • the intensive cooling section 20 is formed with at least one cooling zone provided therein such that the edge regions of the strand S are cooled at least as strongly as a central region of the strand S.
  • Fig. 2 shows the continuous caster 10 of Fig. 1 again in a simplified side view.
  • the longitudinal extensions of the lower cooling section 16 and the intensive cooling section 20 along the strand guide 14 of the continuous casting installation 10 are illustrated.
  • the length of the intensive cooling section 20 is denoted by “L 20 ", wherein this length may amount to about one third of the length L 10 of the continuous caster 10.
  • the intensive cooling section 20 is provided within a first third of the length L 10 of the continuous caster 10, starting from the exit of the strand S from the mold 12.
  • a length of the minor cooling section 16 is shown in FIG Fig. 2 denoted by "L 16 ".
  • the difference in length in the sump tip is advantageously reduced in comparison to the prior art , This is in the presentation of Fig. 3 with the curve "A" showing a course of the sump tip 6 over the strand width.
  • the length difference d is the swamp , which is a measure of the unevenness of the swamp tip, for example only about 150 mm.
  • a substantially uniform or uniform sump tip over the strand width is achieved without the edge temperature dropping below the critical temperature determined by the ductility profile.
  • the realized by the present invention length difference d sump is substantially smaller than in the prior art, the as initially on the basis of Fig. 9 explained may be 1.5 m.
  • the temperature profile after the intensive cooling section (B) is not constant over the strand width.
  • the temperature is lower than in the center of the strand. Due to the reduced cooling of the edge region in the subsequent so-called.
  • Minderkühlabites the temperature difference largely compensates and the temperature profile after the minimum cooling section (C) over the strand width is substantially constant.
  • a temperature rise In operation of the continuous casting 10 according to the invention or in carrying out a corresponding method for continuous casting of a metallic product 11 is between the intensive cooling section 20, in which the edge regions of the strand S subjected to increased edge cooling, and the Minor cooling section 16, in which a reduced coolant for the edge regions of the strand S is provided, a temperature rise. It is important for the invention that such a temperature rise is not too high. An excessive and too rapid rise of the already solidified material of the strand S can otherwise lead to internal cracks.
  • a reheating factor WEF [° C / (mm * sec)].
  • a reheating factor WEF is determined by the quotient of the difference between a temperature T 1 at a first measuring point P 1 and a temperature T 2 at a second measuring point P 2 , the average thickness of the strand shell at the measuring points P 1 and P 2 , and Transport time of the strand S between the measuring points P 1 and P 2 . Accordingly, the unit for reheating factor WEF is determined to be [° C / (mm * sec)].
  • the first measuring point P 1 is arranged in a cooling zone within the intensive cooling section 20, the second measuring point P 2 being arranged in a cooling zone within the minor cooling section 16.
  • the first measuring point P 1 is located at the end of the last cooling zone of the intensive cooling section 20 (with reinforced edge cooling), the second measuring point P 2 being located at the end of the first cooling zone of the minor cooling section 16 (with reduced edge cooling).
  • the temperatures T 1 and T 2 are the average strand shell temperatures at the measuring points P 1 and P 2 .
  • a mathematical-physical calculation model is used to calculate the strand temperatures T 1 , T 2 , the sump tip positions and the strand shell thicknesses.
  • FIG Fig. 1 A position of the first and second measuring points along the strand guide 14 is shown in FIG Fig. 1 simplified with the designations "P 1 " and "P 2 " indicated.
  • the flowchart of Fig. 4 illustrates an optimization of the amount of coolant, preferably in the form of spray, with which the strand S is cooled in its edge regions.
  • all relevant temperatures of the strand S are calculated, in this case, inter alia, the edge temperatures of the strand S, ie the temperature of the strand S in its edge regions.
  • the edge temperature thus calculated is greater than a minimum allowable edge temperature T edge target . If this is not the case, the cooling in the intensive cooling section 20 is not amplified, so that no further minimization of the sump tip difference is possible. This is because of the proviso that the edge temperature should not fall below the critical temperature determined by the ductility curve, referred to above as T edge target .
  • the calculated edge temperature should be greater than the minimum permissible edge temperature T edge target
  • the strand shell temperatures T 1 and T 2 at the measurement points P 1 and P 2 and the average strand shell thickness between these measurement points are calculated using the mathematical-physical calculation model also determines the transport time of the strand S between the measuring points P 1 and P 2 . Taking into account the values thus calculated or determined, the actual reheating factor WEF is then actually determined on the basis of the above equation.
  • the value of the current rewarming factor WEF is currently compared with a permissible maximum rewarming factor WEF max . If WEF is currently greater than WEF max , this is an indication that the temperature rise between the intensive cooling section 20 and the minimum cooling section 16 is already too large, so that the cooling in the intensive cooling section 20 is not amplified, or the amount of coolant used in this section is not increased. However, if the condition WEF actual ⁇ WEF max should be fulfilled, in a next step the sump length course over the strand width is calculated on the basis of a mathematical-physical calculation model.
  • cooling in the intensive cooling section 20 can be appropriately enhanced by increasing the associated amount of refrigerant in At least one cooling zone of the intensive cooling section 20, preferably in all cooling zones of the intensive cooling section 20.
  • the cooling performance in the intensive cooling section 20 remains unchanged, if the calculated sump point difference for the strand S is not too high.
  • FIG. 4 illustrates that the above-described sequence of steps is formed in the form of a control loop.
  • a control circuit preferably detects all the cooling nozzles of the cooling zones, which are arranged within the intensive cooling section 20 in the edge regions of the strand S.
  • the flowchart of Fig. 5 illustrates a scheme for optimizing the nozzle assembly or the use of cooling nozzles in the edge regions of the strand S.
  • a starting point for the flowchart of Fig. 5 serves a mode of operation of the continuous casting 10, in which the edge regions or the edges of the strand S are not overspent.
  • the edge temperature of the strand S within the intensive cooling section 20 is calculated, followed by a query as to whether the calculated edge temperature is greater than a minimum edge temperature T edge target before the directional region I or within the directional region I. From this step, the flowchart corresponds to FIG. 5 essentially the logic of the flowchart of Fig. 4 so that reference may be made to avoid it.
  • the flowchart of Fig. 5 differs from the flowchart according to Fig. 4 solely in that, if the calculated sump tip difference should be classified as too high, then in at least one cooling zone of the intensive cooling section 20 additional cooling nozzles in the edge regions of the strand S are switched on. In this way, the cooling in the edge regions of the strand S is suitably reinforced.
  • Fig. 6 shows a schematically simplified plan view of cooling zones within the intensive cooling section 20 and the lower cooling section 16.
  • the additional cooling nozzles which according to the flowchart of Fig. 5 can be switched to strengthen the cooling of the edge regions of the strand S are in Fig. 6 denoted by "22".
  • the flowcharts of Fig. 4 and Fig. 5 and the determination of the current reheat factor WEF currently carried out in this case relate, for example, to the first and second measuring points P 1 , P 2 , which in the Fig. 6 also symbolically indicated by arrows.
  • these measuring points are provided in individual cooling zones of the intensive cooling section 20 or the minimum cooling section 16.
  • the determination of the current reheating factor WEF currently enables an evaluation of the temperature rise between the intensive cooling section 20 and the minor cooling section 16.
  • the measuring points P 1 and P 2 are also at different locations than in the illustration of FIG Fig. 1 and Fig. 6 can be provided indicated.
  • a plurality of first measuring points P 1 or of second measuring points P 2 are also possible, which are respectively provided within the intensive cooling section 20 and within the minimum cooling section 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP18183113.2A 2017-08-08 2018-07-12 Procédé et dispositif pour la coulée continue d'un produit métallique Active EP3441157B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017213842.4A DE102017213842A1 (de) 2017-08-08 2017-08-08 Verfahren und Anlage zum Stranggießen eines metallischen Produkts

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EP3441157A1 true EP3441157A1 (fr) 2019-02-13
EP3441157B1 EP3441157B1 (fr) 2021-04-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113414362A (zh) * 2021-05-31 2021-09-21 中南大学 一种同时提高高碳钢小方坯角部强度与塑性的冷却制度方法
CN113695548A (zh) * 2021-08-26 2021-11-26 宝武杰富意特殊钢有限公司 一种连铸小方坯的生产工艺及连铸小方坯

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417808A1 (de) * 1993-05-24 1994-12-01 Voest Alpine Ind Anlagen Verfahren zum Stranggießen eines Metallstranges
JPH09225607A (ja) * 1996-02-23 1997-09-02 Sumitomo Metal Ind Ltd 鋼の連続鋳造方法
DE19931331A1 (de) * 1999-07-07 2001-01-18 Siemens Ag Verfahren und Einrichtung zum Herstellen eines Stranges aus Metall
WO2001091943A1 (fr) * 2000-06-02 2001-12-06 Voest-Alpine Industrieanlagenbau Gmbh & Co. Procede pour couler des barres de metal en continu
DE102006056683A1 (de) * 2006-01-11 2007-07-12 Sms Demag Ag Verfahren und Vorrichtung zum Stranggießen
DE102008032970A1 (de) * 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Verfahren zum Abkühlen eines aus einer Stranggießkokille austretenden Stranges
WO2016012131A1 (fr) * 2014-07-23 2016-01-28 Sms Group Gmbh Procédé de fabrication d'un produit métallique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3596290B2 (ja) * 1998-06-30 2004-12-02 Ｊｆｅスチール株式会社 鋼の連続鋳造方法
DE19916190C2 (de) * 1998-12-22 2001-03-29 Sms Demag Ag Verfahren und Vorrichtung zum Stranggießen von Brammen
DE10001073A1 (de) * 2000-01-13 2001-07-19 Sms Demag Ag Verfahren und Vorrichtung zum Verhindern einer unerwünschten Abkühlung der Bandkantenbereiche eines Gußstranges
DE10051959A1 (de) * 2000-10-20 2002-05-02 Sms Demag Ag Verfahren und Vorrichtung zum Stranggießen und anschließendem Verformen eines Gießstranges aus Stahl, insbesondere eines Gießstranges mit Blockformat oder Vorprofil-Format
DE10329030A1 (de) * 2003-03-11 2004-09-23 Sms Demag Ag Verfahren zur Optimierung der Randbereiche von Strangoberflächen gegossener Brammen
DE102011077322A1 (de) 2011-06-09 2012-12-13 Sms Siemag Ag Verfahren zur Verarbeitung eines stranggegossenen Materials
DE102015223788A1 (de) * 2015-11-30 2017-06-01 Sms Group Gmbh Verfahren zum Stranggießen eines Metallstranges und durch dieses Verfahren erhaltener Gießstrang

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417808A1 (de) * 1993-05-24 1994-12-01 Voest Alpine Ind Anlagen Verfahren zum Stranggießen eines Metallstranges
JPH09225607A (ja) * 1996-02-23 1997-09-02 Sumitomo Metal Ind Ltd 鋼の連続鋳造方法
DE19931331A1 (de) * 1999-07-07 2001-01-18 Siemens Ag Verfahren und Einrichtung zum Herstellen eines Stranges aus Metall
WO2001091943A1 (fr) * 2000-06-02 2001-12-06 Voest-Alpine Industrieanlagenbau Gmbh & Co. Procede pour couler des barres de metal en continu
DE102006056683A1 (de) * 2006-01-11 2007-07-12 Sms Demag Ag Verfahren und Vorrichtung zum Stranggießen
DE102008032970A1 (de) * 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Verfahren zum Abkühlen eines aus einer Stranggießkokille austretenden Stranges
WO2016012131A1 (fr) * 2014-07-23 2016-01-28 Sms Group Gmbh Procédé de fabrication d'un produit métallique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113414362A (zh) * 2021-05-31 2021-09-21 中南大学 一种同时提高高碳钢小方坯角部强度与塑性的冷却制度方法
CN113414362B (zh) * 2021-05-31 2022-04-22 中南大学 一种同时提高高碳钢小方坯角部强度与塑性的冷却制度方法
CN113695548A (zh) * 2021-08-26 2021-11-26 宝武杰富意特殊钢有限公司 一种连铸小方坯的生产工艺及连铸小方坯

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EP3441157B1 (fr) 2021-04-21

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