EP1097764A2 - Procédé et dispositif de traitement de surface d'un produit en acier coulée en continue - Google Patents

Procédé et dispositif de traitement de surface d'un produit en acier coulée en continue Download PDF

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Publication number
EP1097764A2
EP1097764A2 EP00123088A EP00123088A EP1097764A2 EP 1097764 A2 EP1097764 A2 EP 1097764A2 EP 00123088 A EP00123088 A EP 00123088A EP 00123088 A EP00123088 A EP 00123088A EP 1097764 A2 EP1097764 A2 EP 1097764A2
Authority
EP
European Patent Office
Prior art keywords
surface treatment
cooling
preceded
inspection
surface processing
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
EP00123088A
Other languages
German (de)
English (en)
Other versions
EP1097764B1 (fr
EP1097764A3 (fr
Inventor
Holger Dr.-Ing Behrens
Hans Georg Dr. Hartung
Günter Dr. Kneppe
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1097764A2 publication Critical patent/EP1097764A2/fr
Publication of EP1097764A3 publication Critical patent/EP1097764A3/fr
Application granted granted Critical
Publication of EP1097764B1 publication Critical patent/EP1097764B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous 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
    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically

Definitions

  • the invention relates to a method for continuously machining a surface cast steel product in the hot state to eliminate surface defects, Surface contaminants and the like.
  • the Invention a device for this and a system for the production of tapes and sheets with a surface processing device integrated in the process flow.
  • the cast product is not one limited thickness or geometry.
  • the surface processing of sheets and strips is made of steel after rolling out in the cold state known for example by pickling.
  • RSH rust, acid and heat-resistant
  • Qualities creates an outer skin that is geometric on the one hand May have surface defects or markings and, on the other hand, impurities of segregations, oxides and mold powder residues. It is therefore desirable to remove these before rolling in order to meet the highest product requirements the surface properties of the rolled strips and sheets to suffice.
  • EP 0 435 897 B1 describes a method for grinding ingots or blocks or similar workpieces made of metal, in which surface defects or Surface contamination can be removed when warm.
  • Advantage of this advanced grinding treatment when warm, i.e. in direct connection with casting, continuous casting, rolling or other thermoforming, is that the material is sanded before cooling due to scale can form on the surface, which in addition to the cold Surface defects must be removed.
  • There will be a certain temperature interval specified for the use of the grinding process its lowest limit is the temperature at which there are essentially no scale layers form.
  • the upper limit is due to the composition of the sanding belt determined, i.e. by the highest temperature at which the tape is not disadvantageous is thermally impaired.
  • the present invention has for its object a method and a To create facility with which a surface treatment of continuous encapsulated steel products to eliminate surface defects in the hot Condition when using not necessarily adapted to high temperatures Surface processing equipment achieved with long service life becomes.
  • the targeted temperature reduction is here on the surface of the metallic Product limited and advantageously matched so that the machining resistance of the workpiece is not influenced in an undesirable manner.
  • all surfaces of the metallic product e.g. a thin slab section, i.e. Top and bottom, as well as the side surfaces, are cooled. But it is also conceivable that only one surface, for example only the top of the metallic Product is cooled, or only defined sections of surfaces.
  • the steps the surface cooling and surface processing an inspection at least a part of at least one surface of the metallic product for surface defects precedent or contamination and depending on the inspection result selective surface treatment only of those detected as defective Surface areas follows.
  • partial cooling can refer the inspection to all surfaces or only to areas.
  • the subordinate partial cooling of the surface is preferably carried out continuously, one is also conceivable limited to the areas detected as defective Cooling with corresponding additional operational expenditure and under the following Consideration of the temperature differences within the surface.
  • the Surface processing complex with the step sequence surface inspection, partial Cooling the surfaces as well as surface processing a cleaning, preferably a descaling process immediately preceding.
  • a descaling process there is an additional cooling effect, on the other hand, a scale that may have already formed or existing surface contamination becomes eliminated and a suitable basis for the inspection created the surface.
  • All known methods for surface processing can be used, such as grinding, milling or flaming.
  • Grinding can be used using known tools such as grinding belts, slices or stones with different grain and grain.
  • the bottom or top and / or the side surfaces of the cast product for example in the form of a Slab or thin slab to be processed both simultaneously and in succession.
  • simultaneous processing the processing time is reduced, and the Energy consumption is kept low, especially since the surface is removed in the warm Condition occurs in which the removal takes less energy than in the cold Condition can be done.
  • the surface processing takes place partially cooled surfaces together with the preferably proposed preparatory Process steps for a continuously cast steel product preferably between the casting and the - preferably directly following - rolling process instead of.
  • the surface treatment is either inline in this production line (X) integrated or takes place offline in a side line (Y).
  • FIG. 1 there is the plant for the production of steel sheets and - strips, in particular of rust and acid resistant steels, essentially from a continuous casting plant 1 (here schematically indicated with a mold) for a strand 2 of 30 to 250 mm thick, preferably from 30 to 130 - wherein this thickness specification does not limit the scope of the invention -, one Cross dividing device 3, a device 4 for heating or equalizing the Temperature, for example a walking beam furnace or a roller hearth furnace, and a rolling mill 5 (here schematically indicated with two rolling stands 5a, 5b). The details of the rolling mill (roughing stands, coil box, etc.) and the Cooling facilities and reel system adjoining Walzstrasse 5 not shown. Depending on the design, the separating device can be omitted become.
  • the cast slab 2 is after the deflection in the horizontal through the cross-section device 3, preferably in the form of cross-section scissors, in sections divided and conveyed through the furnace 4.
  • the in the oven 4 on homogeneous Roll temperature heated or thermally balanced slab sections are then in the illustrated embodiment in the rolling mill 5 rolled into strips. This process is subsequently called the production line (X) designated.
  • a device for surface processing 6 in the warm state of the respective slab section there is a device for surface processing 6 in the warm state of the respective slab section arranged.
  • the type of surface treatment is not specified here, for example, known methods such as grinding with grinding wheels, -bands or stones or milling.
  • the slab transport speed during the surface treatment in about the casting speed.
  • a device for partial cooling 7 is arranged before the surface treatment facility 6 is - seen in the conveying direction - .
  • both the sub and Top of the respective slab section simultaneously in a defined Part section cooled by means of a two-part cooling device (parts 7a, 7b), for example by means of nozzles that apply a cooling medium to the surface.
  • the processing means 6 in addition to a Surface cooling device 7 A surface inspection device 8 upstream.
  • This also consists of two components 8a, 8b together to define the top and bottom of the slabs 2 over a defined Section continuously as it passes through and possibly To detect surface defects.
  • a selective surface treatment is carried out, for example by the Only attack abrasives locally on the slab surfaces.
  • Such an inspection happens with known types of surface analyzers that the Scan the surface like a grid or in sections.
  • an embodiment with a descaling device 9 is made two components (9a, 9b) for simultaneous influencing of the top and bottom of the slabs 2 shown. It is also conceivable for the top and bottom or the side surfaces by means of appropriately staggered devices to process one after the other.
  • the descaling device is - in the conveying direction seen - in front of the inspection device 8 and this in turn in front of the device arranged for partial cooling 7.
  • the production line (X) of the plant is exposed a continuous slab caster 1, a cross-dividing device 3, a traversable first ferry 110, a first section of furnace 104a, a second transverse ferry 111, optionally a second furnace part 104b and one Walzstrasse 5 together.
  • the slab ferry which is in the sideline (Y), is drawn in dash-dotted lines. The transverse movement of the ferries is included Arrows shown.
  • the respective Thin slab section within the first slab ferry 110 by transverse movement moved from the production line (X) to the sideline (Y).
  • the exit 116 of the first ferry 110 is aligned with one of the Descaling device 109 - inspection device 108 - device for partial Cooling 1 07 and, for example, a grinding machine 106 Surface processing complex and a roller table for longitudinal conveyance of the thin slab section parallel to the production line (X).
  • the respective thin slab section becomes the surface treatment transported back to the production line (X) by means of the second transverse ferry 111.
  • a Homogenization of the temperatures across the slab cross section for preparation The rolling process then takes place in a second part of the roller hearth furnace 104b.
  • the respective slab section passes through without reeving in the sideline the conventional sequence of furnace and rolling mill, the two cross ferries being part of the furnace. It can also gap created by driving out the respective slab ferry to Continuation of the process from in an opposite side position Z (not shown) waiting furnace sections are closed.
  • the second part of the furnace will be switched off the production line (X) in the sideline (Y) ( Figure 5). Then sit down the production line (X) from a cross dividing device 3, a first cross slab ferry 110, an oven 112, a second transverse slab ferry 111 and one Roll road 5 together, while the sideline (Y) is the movable first ferry (shown with dashed line), the surface treatment complex (106 to 109), a subsequent furnace 113 and a second movable transverse slab ferry includes.
  • FIG. 6 Another embodiment of the system according to FIG. 4 is shown in FIG. 6.
  • the surface processing complex (106 to 109) has a buffer oven 114 upstream, which receives slabs waiting for surface treatment and ensures that these do not essentially cool down.
  • the system as shown in FIG. 7, combines the system parts of the buffer furnace 114 and heater 115, which in addition to a temperature compensation also a Allows reheating the slab sections. It is achieved that the processed slabs that were preparatively cooled near the surface to the temperature required for rolling or a Experience temperature homogenization and after the slab section has been introduced back to the production line (X) the rolling process.
  • FIG. 8 shows the embodiment of a plant for the production of Strips and sheets with the step upstream of a surface treatment the partial cooling within the production line (X), the surface treatment device is subordinate to the heating device.
  • the production line (X) sits down after the casting machine 1 after the optionally provided Separating device 3 in this embodiment from a heating device 204, which preferably consists of a roller hearth furnace, a surface treatment device 206 with preceding cooling device 207 and subsequent rolling mill 5 together.
  • the slab transport speed is already adapted to the required roller transport speed. All other embodiments described in Figures 2 to 7 are also transferable to this system in a corresponding manner.
  • FIG. 9 shows a system from the one after the other arranged components casting machine 1, device for partial Cooling 307, surface processing device 306, cross-cutting device 303, Heating device 304 and a rolling mill 5.
  • This embodiment has opposite the system with one upstream of the surface processing device Querwelinnchtung the advantage that the surface treatment does not already separate pieces of slab takes place, but in the continuous Process is integrated and therefore without interruptions and adjustments to the each slab can work continuously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Coating With Molten Metal (AREA)
EP00123088A 1999-11-04 2000-11-02 Procédé et dispositif de traitement de surface d'un produit en acier coulée en continue Expired - Lifetime EP1097764B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19953252A DE19953252A1 (de) 1999-11-04 1999-11-04 Verfahren zur Oberflächenbearbeitung eines kontinuierlich gegossenen Stahlproduktes und Einrichtung hierzu
DE19953252 1999-11-04

Publications (3)

Publication Number Publication Date
EP1097764A2 true EP1097764A2 (fr) 2001-05-09
EP1097764A3 EP1097764A3 (fr) 2003-08-13
EP1097764B1 EP1097764B1 (fr) 2007-10-03

Family

ID=7928006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00123088A Expired - Lifetime EP1097764B1 (fr) 1999-11-04 2000-11-02 Procédé et dispositif de traitement de surface d'un produit en acier coulée en continue

Country Status (7)

Country Link
US (1) US6436205B1 (fr)
EP (1) EP1097764B1 (fr)
JP (1) JP4745495B2 (fr)
AT (1) ATE374660T1 (fr)
BR (1) BR0006775A (fr)
DE (2) DE19953252A1 (fr)
ES (1) ES2291163T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007137740A1 (fr) * 2006-05-26 2007-12-06 Sms Demag Ag Procédé et dispositif permettant de produire une bande métallique par coulée continue
WO2007137747A1 (fr) 2006-05-26 2007-12-06 Sms Demag Ag Dispositif permettant de produire une bande métallique par coulée continue
WO2008000396A1 (fr) 2006-06-26 2008-01-03 Sms Demag Ag Procédé et dispositif de production de matériau de laminage de feuillards à chaud en acier au silicium à base de brames fines
WO2008128504A1 (fr) * 2007-04-24 2008-10-30 Sms Siemag Ag Procédé de reconnaissance et de classification de défauts de surface sur des brames coulées en continu
WO2013159786A1 (fr) * 2012-04-24 2013-10-31 Gaydoul Juergen Procédé et installation pour le post-traitement d'un produit acier, coulé et/ou laminé à chaud
CN106734575A (zh) * 2017-01-23 2017-05-31 上海众达汽车冲压件有限公司 一种冲压式模具生产线的加工工艺
WO2023186471A1 (fr) * 2022-03-29 2023-10-05 Sms Group Gmbh Installation de rouleaux lamineurs et procédé pour la faire fonctionner

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DE10045085C2 (de) * 2000-09-12 2002-07-18 Siemens Ag Gießwalzanlage
DE10109223C1 (de) 2001-02-26 2002-08-01 Siemens Ag Verfahren zum Betreiben einer Gießwalzanlage
DE10138794A1 (de) * 2001-08-07 2003-02-27 Sms Demag Ag Verfahren und Anlage zur Produktion von Flach- und Langprodukten
DE10252246A1 (de) * 2002-11-07 2004-05-27 Sms Demag Ag Verfahren und Anlage zur Oberflächenbehandlung innerhalb einer Stranggießanlage
DE102006005635A1 (de) * 2006-02-08 2007-08-09 Sms Demag Ag Rollenherdofen zum Aufheizen und/oder Temperaturausgleichen von Stranggiessprodukten aus Stahl oder Stahllegierung und dessen Anordnung vor einer Warmband-Fertigwalzstrasse
JP4816130B2 (ja) * 2006-02-22 2011-11-16 Ｊｆｅスチール株式会社 鋼の連続鋳造鋳片の製造方法および鋳片の表層欠陥手入システム。
DE102007022932A1 (de) * 2006-05-26 2007-12-20 Sms Demag Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Stranggießen
DE102007022927A1 (de) * 2006-05-26 2007-12-20 Sms Demag Ag Vorrichtung und Verfahren zum Herstellen eines Metallbandes durch Stranggießen
DE102007022929A1 (de) * 2006-05-26 2007-12-20 Sms Demag Ag Vorrichtung und Verfahren zum Herstellen eines Metallbandes durch Stranggießen
KR100812065B1 (ko) * 2006-11-23 2008-03-07 주식회사 포스코 스테인레스강 열간 및 냉간 압연재의 면거침 결함 개선방법
JP4867789B2 (ja) * 2007-05-24 2012-02-01 Ｊｆｅスチール株式会社 熱間スラブの表層部手入れ方法及び熱延鋼材の製造方法
ATE522289T1 (de) * 2007-07-04 2011-09-15 Baoshan Iron & Steel Hocheffizientes energiesparendes verfahren zum walzen von stahlbändern unmittelbar nach dem stranggiessen
DE102009019721B4 (de) * 2009-05-05 2011-09-01 Hoerbiger Automatisierungstechnik Holding Gmbh Hydraulisches System
ES2930080T3 (es) 2013-03-15 2022-12-07 Materion Corp Tamaño de grano uniforme en aleación de cobre espinodal trabajada en caliente
CN104056865B (zh) * 2013-03-19 2017-02-22 宝山钢铁股份有限公司 一种钢板表面处理方法及其装置
JP6154708B2 (ja) * 2013-09-27 2017-06-28 日新製鋼株式会社 連続鋳造方法
KR101998966B1 (ko) 2017-11-03 2019-07-10 주식회사 포스코 연주압연장치 및 연주압연방법
DE102020205077A1 (de) * 2019-09-23 2021-03-25 Sms Group Gmbh Vorrichtung und Verfahren zur Herstellung und Weiterbehandlung von Brammen
DE102021211339A1 (de) * 2020-10-13 2022-04-14 Sms Group Gmbh Vorrichtung und Verfahren zur Herstellung von warmgewalzten Metallbändern

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DE1508952A1 (de) * 1965-07-16 1969-11-06 R L Soc Pour L Etude Rationell Direktes und kontinuierliches Herstellungsverfahren fuer metallurgische Erzeugnisse
US3503161A (en) * 1967-09-29 1970-03-31 Cayuga Machine & Fabrication C Method of treating a continuously cast billet
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US3503161A (en) * 1967-09-29 1970-03-31 Cayuga Machine & Fabrication C Method of treating a continuously cast billet
US3774353A (en) * 1970-06-19 1973-11-27 Nippon Steel Corp Method for partially grinding surface flows of a hot bloom and slab
DE3037571A1 (de) * 1980-10-04 1982-04-22 Thyssen Edelstahlwerke AG, 4000 Düsseldorf Verfahren zum mechanischen abtragen von material von stahlstrangguss-oberflaechen und schleifvorrichtung
JPH05320771A (ja) * 1992-05-15 1993-12-03 Kawasaki Steel Corp 冷間圧延用ステンレス予備処理鋼帯の製造方法及び装置

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007137740A1 (fr) * 2006-05-26 2007-12-06 Sms Demag Ag Procédé et dispositif permettant de produire une bande métallique par coulée continue
WO2007137747A1 (fr) 2006-05-26 2007-12-06 Sms Demag Ag Dispositif permettant de produire une bande métallique par coulée continue
AU2007267401B2 (en) * 2006-05-26 2010-03-18 Sms Siemag Aktiengesellschaft Device for producing a metal strip by continuous casting
AU2007267472B2 (en) * 2006-05-26 2010-05-13 Sms Siemag Aktiengesellschaft Method and device for producing a metal strip by continuous casting
WO2008000396A1 (fr) 2006-06-26 2008-01-03 Sms Demag Ag Procédé et dispositif de production de matériau de laminage de feuillards à chaud en acier au silicium à base de brames fines
WO2008128504A1 (fr) * 2007-04-24 2008-10-30 Sms Siemag Ag Procédé de reconnaissance et de classification de défauts de surface sur des brames coulées en continu
CN101657277B (zh) * 2007-04-24 2012-12-05 Sms西马克股份公司 用于对连续铸造板坯上的表面缺陷进行识别和分类的方法
US8499821B2 (en) 2007-04-24 2013-08-06 Sms Siemag Ag Method for detecting and classifying surface defects on continuously cast slabs
WO2013159786A1 (fr) * 2012-04-24 2013-10-31 Gaydoul Juergen Procédé et installation pour le post-traitement d'un produit acier, coulé et/ou laminé à chaud
CN106734575A (zh) * 2017-01-23 2017-05-31 上海众达汽车冲压件有限公司 一种冲压式模具生产线的加工工艺
CN106734575B (zh) * 2017-01-23 2019-07-23 上海众达汽车冲压件有限公司 一种冲压式模具生产线的加工工艺
WO2023186471A1 (fr) * 2022-03-29 2023-10-05 Sms Group Gmbh Installation de rouleaux lamineurs et procédé pour la faire fonctionner

Also Published As

Publication number Publication date
ATE374660T1 (de) 2007-10-15
BR0006775A (pt) 2001-07-31
EP1097764B1 (fr) 2007-10-03
ES2291163T3 (es) 2008-03-01
EP1097764A3 (fr) 2003-08-13
DE50014689D1 (de) 2007-11-15
JP4745495B2 (ja) 2011-08-10
US6436205B1 (en) 2002-08-20
DE19953252A1 (de) 2001-05-10
JP2001170745A (ja) 2001-06-26

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