EP0344095B2 - Procédé de laminage direct continu - Google Patents

Procédé de laminage direct continu Download PDF

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Publication number
EP0344095B2
EP0344095B2 EP89730119A EP89730119A EP0344095B2 EP 0344095 B2 EP0344095 B2 EP 0344095B2 EP 89730119 A EP89730119 A EP 89730119A EP 89730119 A EP89730119 A EP 89730119A EP 0344095 B2 EP0344095 B2 EP 0344095B2
Authority
EP
European Patent Office
Prior art keywords
flat product
thickness
flat
product
continuous casting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89730119A
Other languages
German (de)
English (en)
Other versions
EP0344095B1 (fr
EP0344095A3 (fr
EP0344095A2 (fr
Inventor
Fritz-Peter Dr. Pleschiutschnigg
Lothar Parschat
Armin Burau
Werner Dr. Rahmfeld
Gerd Möllers
Hans-Jürgen Ehrenberg
Hans Georg Eberhardt
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6355277&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0344095(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to AT89730119T priority Critical patent/ATE92797T1/de
Publication of EP0344095A2 publication Critical patent/EP0344095A2/fr
Publication of EP0344095A3 publication Critical patent/EP0344095A3/fr
Publication of EP0344095B1 publication Critical patent/EP0344095B1/fr
Application granted granted Critical
Publication of EP0344095B2 publication Critical patent/EP0344095B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B21B1/463—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 in a continuous process, i.e. the cast not being cut before rolling
    • 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
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands

Definitions

  • the invention relates to a method for continuous Casting rolls of flat metal products from steel.
  • Flat products are the starting material for the production of sheets or strips. Such Flat products are also called slabs or Inscribed thin slabs. Will be slabs with a size exceeding a certain thickness generation problems usually occur on. According to DE-OS 24 44 443 should be the segregation prevented with such products be that in the continuous caster on the Strand within the solidification section, if possible just before the solidification point, a deformation with a degree of reduction of 0.1 to 2% is exercised.
  • EP 0286862 A1 (State of the art according to Art. 54 (3) EPC.) is a system for Manufacture of a steel strip known, the strand emerging from the continuous caster, the already reduced in thickness by compression has been in a subsequent rolling stand is rolled into the actual strip.
  • the invention is based on the object Specify the procedure with which the Continuous caster a product with a high proportion Rolling structure is made available with the thickness dimension leaving the casting plant is coil capable.
  • the thickness reduction of the flat product is in the field of solidification and coordinated with one another in the solidified area, that the total reduction of the flat product is at least 60%.
  • the so generated Flat product is at a thickness of max. 35 mm coil capable, so that in a further embodiment the invention following the casting and rolling process the flat product obtained is coiled.
  • the flat product emerging from the mold due to the scaling of the flat product protecting atmosphere should cover the entire area the deformation distance are maintained. This can be done in particular by the fact that an inert gas atmosphere within the strand guide section is maintained. Should this be out not be possible for operational reasons descaling as an equivalent measure of the flat product within the deformation section on.
  • Embodiment of the invention can the roles be surface-coated in the sense of a reduction the cooling effect caused by the rollers.
  • the temperature range from 1500 - 1200 ° C for further reduction has turned out to be special proven beneficial for obtaining an isotropic Structure.
  • the Invention will be explained in more detail.
  • steel is turned into a mold the cross-sectional dimension 60 mm x 1200 mm shed.
  • the one that partially froze across the cross-section Strand is withdrawn from the mold with a speed of approx. 3.5 m / min and by means of Led pairs of roles.
  • the pairs of roles are individual or combined into segments against the strand adjustable and are so against pressed the strand that in the area of the solidification section, from the end of the mold to solidification, the strand to a thickness of 36 mm (approx. 40% of the dimension at the mold exit) is reduced.
  • This area is included another area with pairs of roles in which one further thickness reduction from 36 to 25 mm (30% from the already reduced strand thickness) is made.
  • the flat product produced in this way can then be wound up into the coil or directly fed for further processing by rolling become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Moulding By Coating Moulds (AREA)
  • Mold Materials And Core Materials (AREA)

Claims (6)

  1. Procédé pour le laminage de coulée continue d'éléments plats métalliques, avec lequel par introduction d'un bain de fusion en acier dans une coquille de coulée continue est produit un élément plat avec une épaisseur de 50 à 100 mm, qui, après avoir quitté la coquille de coulée continue et après sa solidification partielle, est rectifié et refroidi sur la section transversale de coulée exclusivement au moyen de paires de rouleaux refroidis intérieurement et est déformé de façon réduite au moyen de ces paires de rouleaux globalement d'au moins 60 % de son épaisseur à un élément plat présentant une épaisseur inférieure ou égale à 35 mm, la réduction dans l'étendue de solidification étant d'au moins 10 à 70 % et valant au moins 30 96 supplémentaire dans la zone solidifiée pour des températures juste au-dessous de la température de solidus, en particulier dans la plage de températures de 1500-1200°C.
  2. Procédé selon la revendication 1,
    caractérisé en ce que l'élément plat est refroidi par des rouleaux à revêtement de surface.
  3. Procédé selon l'une des revendications 1 et 2,
    caractérisé en ce que l'élément plat, sortant de la coquille, est guidé, jusqu'à la fin de l'étendue de déformation, dans une atmosphère évitant une oxydation.
  4. Procédé selon la revendication 3,
    caractérisé en ce que l'élément plat est guidé sous une atmosphère de gaz inerte.
  5. Procédé selon l'une des revendications 1 à 4,
    caractérisé en ce que l'élément plat est désoxydé pendant la déformation.
  6. Procédé selon la revendication 1,
    caractérisé en ce que, après avoir quitté les paires de rouleaux, l'élément plat produit est bobiné.
EP89730119A 1988-05-25 1989-05-11 Procédé de laminage direct continu Expired - Lifetime EP0344095B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89730119T ATE92797T1 (de) 1988-05-25 1989-05-11 Verfahren zum kontinuierlichen giesswalzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3818077A DE3818077A1 (de) 1988-05-25 1988-05-25 Verfahren zum kontinuierlichen giesswalzen
DE3818077 1988-05-25

Publications (4)

Publication Number Publication Date
EP0344095A2 EP0344095A2 (fr) 1989-11-29
EP0344095A3 EP0344095A3 (fr) 1991-03-06
EP0344095B1 EP0344095B1 (fr) 1993-08-11
EP0344095B2 true EP0344095B2 (fr) 2000-03-22

Family

ID=6355277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730119A Expired - Lifetime EP0344095B2 (fr) 1988-05-25 1989-05-11 Procédé de laminage direct continu

Country Status (9)

Country Link
US (1) US4976306A (fr)
EP (1) EP0344095B2 (fr)
JP (1) JP3065321B2 (fr)
CN (1) CN1018157B (fr)
AT (1) ATE92797T1 (fr)
BR (1) BR8902396A (fr)
CA (1) CA1311991C (fr)
DE (2) DE3818077A1 (fr)
ES (1) ES2044205T5 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535368B1 (fr) * 1991-09-19 1996-06-05 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif de coulée continue d'un lingot métallique
DE4134159C1 (en) * 1991-10-11 1992-12-17 Mannesmann Ag, 4000 Duesseldorf, De Continuous casting process of steel, for redn. of scrap - comprises pouring molten steel into open-ended mould to produce strand, then reducing cross=section
AT398396B (de) * 1993-02-16 1994-11-25 Voest Alpine Ind Anlagen Verfahren zum herstellen eines bandes, vorstreifens oder einer bramme
DE4403049C1 (de) * 1994-01-28 1995-09-07 Mannesmann Ag Stranggießanlage und Verfahren zur Erzeugung von Dünnbrammen
DE4403048C1 (de) * 1994-01-28 1995-07-13 Mannesmann Ag Stranggießanlage und Verfahren zur Erzeugung von Rechteck-Dünnbrammen
EP0707908B1 (fr) 1994-04-04 2001-11-28 Nippon Steel Corporation Procede de coulee en continu a double rouleaux
JP3008821B2 (ja) * 1994-07-29 2000-02-14 住友金属工業株式会社 薄鋳片の連続鋳造方法および装置
IT1280171B1 (it) * 1995-05-18 1998-01-05 Danieli Off Mecc Linea di colata verticale per bramme
DE19529049C1 (de) * 1995-07-31 1997-03-20 Mannesmann Ag Hochgeschwindigkeits-Dünnbrammenanlage
KR100368253B1 (ko) 1997-12-09 2003-03-15 주식회사 포스코 미니밀프로세스에의한열연판의제조방법
IT1302582B1 (it) * 1998-10-01 2000-09-29 Giovanni Arvedi Processo e relativa linea di produzione per la fabbricazione direttadi pezzi finiti stampati o imbutiti da nastro a caldo ultrasottile
DE19931331A1 (de) 1999-07-07 2001-01-18 Siemens Ag Verfahren und Einrichtung zum Herstellen eines Stranges aus Metall
FI116453B (fi) * 2000-12-20 2005-11-30 Outokumpu Oy Menetelmä kerrosmetallituoteaihion valmistamiseksi ja kerrosmetallituoteaihio
CN100427229C (zh) * 2005-07-26 2008-10-22 北京交通大学 一种钢背铝基复合板液液相复合方法及装置
CN100396391C (zh) * 2005-09-01 2008-06-25 中冶东方工程技术有限公司 薄带钢铸轧生产工艺
IT202000000928A1 (it) 2020-01-20 2021-07-20 Kverneland Group Ravenna Srl Rotopressa

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE898135C (de) * 1948-12-19 1953-11-26 Adolf Reimitz Verfahren zum Herstellen von Blechen, Baendern, Profilen und Rohren aus Metallen durch Giessen duenner Vorprodukte im Walzenspalt
AT280191B (de) * 1966-12-01 1970-04-10 Gerb Boehler & Co Ag Verfahren zur Herstellung von Walzprodukten aus Stranggußerzeugnissen mit Hilfe von zwei Walzenpaaren
JPS5916862B2 (ja) * 1973-03-26 1984-04-18 日本鋼管株式会社 連続鋳造法
JPS5422777B2 (fr) * 1973-09-17 1979-08-09
JPS5160633A (en) * 1974-11-25 1976-05-26 Nippon Kokan Kk Haganeno renzokuchuzoho
JPS5180624A (en) * 1975-01-13 1976-07-14 Nippon Kokan Kk Haganenorenzokuchuzoho oyobi sonosochi
US4519439A (en) * 1977-07-26 1985-05-28 Jernjontoret Method of preventing formation of segregations during continuous casting
JPS5516752A (en) * 1978-07-24 1980-02-05 Nippon Steel Corp Directly rolling molten steel to thin sheet
JPS56119607A (en) * 1980-02-25 1981-09-19 Mitsubishi Heavy Ind Ltd Continuous manufacture of thin steel sheet
EP0286862B1 (fr) * 1987-04-13 1992-05-13 Thyssen Stahl Aktiengesellschaft Procédé pour fabriquer une bande d'acier

Also Published As

Publication number Publication date
CN1018157B (zh) 1992-09-09
CN1038955A (zh) 1990-01-24
EP0344095B1 (fr) 1993-08-11
ES2044205T5 (es) 2000-07-01
ATE92797T1 (de) 1993-08-15
ES2044205T3 (es) 1994-01-01
US4976306A (en) 1990-12-11
DE58905221D1 (de) 1993-09-16
EP0344095A3 (fr) 1991-03-06
CA1311991C (fr) 1992-12-29
EP0344095A2 (fr) 1989-11-29
JP3065321B2 (ja) 2000-07-17
DE3818077A1 (de) 1989-11-30
DE3818077C2 (fr) 1991-06-20
JPH0220650A (ja) 1990-01-24
BR8902396A (pt) 1990-01-16

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