EP2991783B1 - Verfahren zur herstellung eines metallischen bandes - Google Patents

Verfahren zur herstellung eines metallischen bandes Download PDF

Info

Publication number
EP2991783B1
EP2991783B1 EP14720168.5A EP14720168A EP2991783B1 EP 2991783 B1 EP2991783 B1 EP 2991783B1 EP 14720168 A EP14720168 A EP 14720168A EP 2991783 B1 EP2991783 B1 EP 2991783B1
Authority
EP
European Patent Office
Prior art keywords
strip
sheet
cooling
cooling medium
rolling mill
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.)
Revoked
Application number
EP14720168.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2991783A1 (de
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
Original Assignee
SMS Group GmbH
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=51727301&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2991783(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2991783A1 publication Critical patent/EP2991783A1/de
Application granted granted Critical
Publication of EP2991783B1 publication Critical patent/EP2991783B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B21B45/02—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 lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/06—Thermomechanical rolling
    • 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
    • B21B45/02—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 lubricating, cooling, or cleaning

Definitions

  • the invention relates to a method for producing a metallic strip, in which the strip is rolled in a multi-stand rolling mill, applied behind the last roll stand of the rolling mill in the conveying direction and cooled in a cooling device.
  • a method according to the preamble of claim 1 is of the US 2012/0068391 A1 and the JP S60 243226 A known. Other solutions show that WO 02/070157 A1 and the JP S60 221115 A ,
  • the mechanical properties of steel materials can be influenced in many ways. Increasing the strength is achieved by supplementing certain alloying elements (solid solution hardening). In addition, during rolling, the finishing line temperature may be lowered to achieve a higher dislocation density (dislocation hardening). By alloying micro-alloying elements - such as Nb, V or Ti - precipitates are formed which cause an increase in strength (precipitation hardening). However, these mechanisms have the disadvantage that the toughness is adversely affected. In contrast, a fine grain structure (fine grain hardening) has a positive effect on the strength and, at the same time, on the toughness properties. With a small grain size, the strength and toughness properties of the steel material are improved.
  • a decrease in the ferrite grain diameter results in an increase in the yield strength and tensile strength.
  • the Hall-Petch relationship gives a good representation of the results of industrially produced unalloyed low carbon steels (LC steels) and microalloyed steels.
  • Microalloyed steels generally have a smaller grain size due to repressed recrystallization and are accordingly higher in strength than ordinary LC steels.
  • a small ferrite grain size has a positive effect on the toughness.
  • the transition temperature DBTT Ductile Brittle Transition Temperature
  • thermo-mechanical rolling uses these effects deliberately in hot rolling and heavy plate mills.
  • the most important mechanism is the dynamic recrystallization of austenite during forming.
  • thermo-mechanical rolling has been used to steadily improve the controlled temperature control during rolling and subsequent cooling and to set smaller ferrite grain sizes.
  • a grain size of 3 to 5 microns for ordinary CMn steels represents a limit that can not be further undercut with industrial processes and conventional alloying concepts, no matter how high the induced deformation of the austenite phase is during rolling.
  • Hall-Petch equation predicts another grain refinement.
  • a grain size of 1 ⁇ m would lead to an increase in strength of around 350 MPa with simultaneously improved toughness. Therefore, the motivation in material development is to generate new concepts in plant, process and process engineering and to produce high-strength materials of this size on an industrial scale.
  • the disadvantage is that it comes after rolling the strip or sheet to a pronounced grain growth in the structure, which is superimposed by recrystallization and recovery operations.
  • the grain growth leads to a deterioration of the mechanical properties.
  • Another aspect concerns the flatness of the strip or sheet.
  • the invention is therefore based on the object to provide a generic method that allows a better adjustment of the mechanical properties and the phase components of the metallic material, in particular of the steel, especially in a hot strip and plate mill. Furthermore, the degree of planarity of the produced strip or sheet should be as large as possible.
  • the volume flow of cooling medium applied from below to the strip or sheet is at least 150% of the volume flow of cooling medium applied from above onto the strip or sheet.
  • the volume flow of cooling medium applied from below onto the strip or sheet is preferably at most 400% of the volume flow of cooling medium applied from above onto the strip or sheet. It has been shown that at values above 400%, the band edges may bulge downwards.
  • a cooling medium in such an amount (and optionally applied with such pressure) that the cooling of the strip or sheet on its surface with a gradient of at least 500 K / s, preferably with a gradient of at least 750 K / s, more preferably with a gradient of at least 1,000 K / s.
  • the strip or sheet is preferably produced by first casting a slab in a continuous casting plant, which is then heated to a defined temperature in an oven, in particular in a roller hearth furnace, and immediately thereafter rolled down to the finished strip thickness in the rolling mill functioning as a finishing train ,
  • a steel strip or a steel sheet is preferably produced.
  • the strip may be steel strip to which alloying constituents are added.
  • the rolling mill is preferably a hot rolling mill.
  • the rapid cooling extends from the interior of the last roll stand of the rolling mill in the conveying direction (ie in the rolling direction) over a distance between 2 m and 15 m, preferably between 6 m and 10 m.
  • the cooling device behind the last rolling stand of the rolling mill in the conveying direction preferably begins at a distance greater than 10 m.
  • a procedure which influences the grain structure and sets the smallest possible ferrite grain.
  • a rapid cooling is arranged in the last frame of the finishing train.
  • the time between the passage of the last roll gap and the cooling of the strip or sheet is thus minimal.
  • the rapid cooling is preferably designed so that cooling rates above 1,000 K / s on the surface are possible.
  • the amounts of water are applied in such a way that optimum flatness results.
  • the rolling or conveying direction behind the rapid cooling measuring instruments for the thickness of the band or for the same temperature
  • the (conventional) laminar cooling and then the coiling of the strip take place.
  • the present invention allows the improved production of strips and sheets, in particular of metallic materials (especially steel and iron alloys) in hot and heavy plate mills.
  • the resulting grain structure is the result of recrystallization and recovery processes occurring in the material during forming. Grain growth takes place especially after the last pass in a hot strip mill or in a heavy plate stand and can be prevented or reduced by the earliest possible cooling of the strip.
  • the fields of application of the present invention are thus generally rolling mills, hot strip and plate rolling mills, the production of strips and sheets of steel and iron alloys.
  • the proposed method can be used wherever materials have to be cooled in the production process, in particular in a hot strip and heavy plate train, each with associated units.
  • the present invention provides an answer and describes an arrangement in which a rapid cooling immediately adjoins the last roll stand.
  • a rapid cooling immediately adjoins the last roll stand.
  • the quantities of water on the top and bottom of the strip or sheet are applied in such a way that a flat strip or sheet results.
  • the water ratio between the top and bottom is 1: 1 up to 1: 1.15. This means that the water volumes on the top and bottom are the same or on the bottom up to 15% more volume flow is given up than on the top.
  • the present invention has found that this ratio is detrimental to the setting of good planarity. There are edge waves, so that the band edge is no longer resting on the roller table. This is prevented according to the present invention and a high degree of flatness is achieved when the water flow ratio is in a range between 1: 1.2 and 1: 4, ie At least 120% and up to 400% of the volume flow is discharged to the bottom than is the case on the top of the belt.
  • the slab In the production of hot strip, the slab is first cast in a continuous casting plant, then heated in a roller hearth to the desired oven temperature and immediately afterwards in the finishing mill (rolling mill) rolled down to the finished strip thickness (heating insert).
  • the slab can also be heated in the oven after a longer laytime and then further processed in the rolling mill (cold use).
  • the necessary furnace temperature depends essentially on the final thickness and bandwidth to be rolled as well as on the strip material.
  • the higher toughness results from the decrease in grain size according to the Cottrell-Petch equation. This can be measured in terms of a decrease in the DBTT transition temperature (Ductil Brittle Transition Temperature) or higher values in the notched bar impact test.
  • the rapid cooling is an effective tool to improve the mechanical properties over setting a smaller grain size.
  • the flatness of the strip or sheet is adversely affected by the high volumes of water necessary to set a high cooling rate.
  • the optimal loading between the top and bottom is of particular importance. If the amounts of water are applied in the same ratio, due to thermal stresses to a buckling of the strip or sheet such that the strip or sheet edges stand out from the roller table. However, if the water levels are adjusted to give the same temperatures on the top and bottom of the belt, optimum flatness is achieved and the belt / sheet edge lies flat on the roller table like the belt center. However, it is necessary to increase the amount of water on the bottom.
  • FIG. 1 An embodiment of the invention is shown.
  • the single figure shows schematically the last framework of a finishing train for producing a steel strip and a subsequent laminar cooling including coiler.
  • the figure shows the rolling stand 2 of a finishing train.
  • the strip 1 is rolled in the finishing train and leaves in the conveying direction F, the last rolling stand 2.
  • the belt 1 is cooled, using a quick-cooling 4 is used, the structure of the classical Construction corresponds.
  • a cooling medium (water) is sprayed onto the top and bottom of the belt 1.
  • the cooling device 3 is divided into 10 sections.
  • the length L 1 of the rapid cooling 4 in the exemplary embodiment amounts to approximately 9 m from the middle of the roll stand 2;
  • the rapid cooling begins as described immediately behind or in the nip of the last rolling mill. 2
  • the distance L 2 of the cooling device 3, ie the beginning thereof, is in the exemplary embodiment at about 14 m behind the center of the roll stand second
  • Behind the cooling device 3 is a reel device 5 for winding the now finished tape.
  • Temperature measuring elements 6 and 7 determine the respective temperature at the corresponding location in order to be able to monitor the course of the process.
  • the strength and elongation of the strip (or sheet) are increased, which is due to the small grain size, which is achieved when using the proposed method.
  • grain growth takes place immediately after recrystallization. This can be prevented if the strip temperature is reduced as quickly as possible after rolling in an area in which grain growth no longer takes place.
  • the strip must therefore be cooled from the final rolling temperature, which is at about 800 ° C to 920 ° C, on average at 860 ° C, to at least 700 ° C.
  • the proposed method is used in combination with a CSP plant with X-strands, oscillation and use of the tunnel kiln, or in a conventional hot rolling mill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP14720168.5A 2013-05-03 2014-04-30 Verfahren zur herstellung eines metallischen bandes Revoked EP2991783B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013208145 2013-05-03
DE102013221072 2013-10-17
DE102013019698.1A DE102013019698A1 (de) 2013-05-03 2013-11-26 Verfahren zur Herstellung eines metallischen Bandes
PCT/EP2014/058935 WO2014177664A1 (de) 2013-05-03 2014-04-30 Verfahren zur herstellung eines metallischen bandes

Publications (2)

Publication Number Publication Date
EP2991783A1 EP2991783A1 (de) 2016-03-09
EP2991783B1 true EP2991783B1 (de) 2017-03-01

Family

ID=51727301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14720168.5A Revoked EP2991783B1 (de) 2013-05-03 2014-04-30 Verfahren zur herstellung eines metallischen bandes

Country Status (8)

Country Link
US (1) US9833823B2 (zh)
EP (1) EP2991783B1 (zh)
JP (1) JP6138347B2 (zh)
KR (1) KR101759915B1 (zh)
CN (1) CN105324190B (zh)
DE (1) DE102013019698A1 (zh)
RU (1) RU2635500C2 (zh)
WO (1) WO2014177664A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016002950A1 (de) 2016-03-11 2017-09-14 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen System zu extrakorporalen Elimination von Kohlenmonoxid
CN110191769B (zh) * 2017-01-24 2021-05-04 首要金属科技奥地利有限责任公司 铸轧设备和通过这种设备处理工件的方法
IT201700039423A1 (it) * 2017-04-10 2018-10-10 Arvedi Steel Eng S P A Impianto e procedimento per la produzione in molteplici modalita' di nastri e lamiere d’acciaio
RU2686504C1 (ru) * 2018-10-01 2019-04-29 Акционерное общество "Выксунский металлургический завод" Способ производства рулонной полосы на широкополосном прокатном стане
JP7233533B2 (ja) 2018-11-15 2023-03-06 シュトゥート・テオドール 第一の金属ストリップと少なくとも１つの更なる金属ストリップとからロールプロファイリングにより原線材を製造する方法
DE102019203088A1 (de) 2019-03-06 2020-09-10 Sms Group Gmbh Verfahren zur Herstellung eines metallischen Bandes oder Blechs
DE102019220033A1 (de) * 2019-03-18 2020-09-24 Sms Group Gmbh Anlage und Verfahren zur Herstellung von metallischem Warmband
BR112022023731A2 (pt) 2020-06-04 2023-04-11 Constellium Muscle Shoals Llc Processo e equipamento de resfriamento sobre um laminador reversível a quente
FR3112297B1 (fr) 2020-07-07 2024-02-09 Constellium Neuf Brisach Procédé et équipement de refroidissement sur un Laminoir réversible à chaud

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022115A (ja) 1983-07-18 1985-02-04 Derufuai:Kk ポリゴンミラ駆動装置
JPS60221115A (ja) 1984-04-04 1985-11-05 Kobe Steel Ltd 鋼板冷却方法
JPS60243226A (ja) 1984-05-15 1985-12-03 Kawasaki Steel Corp 熱間圧延材の材質制御方法および装置
WO2002070157A1 (de) 2001-03-03 2002-09-12 Sms Demag Aktiengesellschaft Verfahren zum entzundern von bändern
US20080257522A1 (en) 2004-12-03 2008-10-23 Joachim Schwellenbach Csp Continuous Casting System With a Roler Hearth Furnace and Pivoting Conveyors
JP2010227991A (ja) 2009-03-30 2010-10-14 Jfe Steel Corp 熱鋼板の冷却設備
US20120068391A1 (en) 2009-06-30 2012-03-22 Sumitomo Metal Industries, Ltd. Cooling apparatus, cooling method, manufacturing apparatus and manufacturing method of hot-rolled steel sheet
EP2505277A1 (en) 2009-11-24 2012-10-03 Sumitomo Metal Industries Limited Hot-rolled steel sheet manufacturing device, and hot-rolled steel sheet manufacturing method
EP2072157B1 (en) 2006-10-30 2017-04-19 JFE Steel Corporation Method of cooling hot-rolled steel strip

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU988880A1 (ru) 1981-06-15 1983-01-15 Институт Черной Металлургии Мчм Ссср Способ ускоренного охлаждени полосового проката
JPS6156722A (ja) 1984-08-28 1986-03-22 Kawasaki Steel Corp 熱延鋼板の熱間仕上圧延機出側直近急冷方法
SU1817714A3 (en) 1991-12-06 1993-05-23 Орско-Халиловский металлургический комбинат Method of cooling thick-sheet rolled metal
JP3508540B2 (ja) 1998-03-30 2004-03-22 Ｊｆｅスチール株式会社 鋼板冷却設備
DE19911287C1 (de) * 1999-03-13 2000-08-31 Thyssenkrupp Stahl Ag Verfahren zum Erzeugen eines Warmbandes
CN1304133C (zh) * 2002-08-08 2007-03-14 杰富意钢铁株式会社 热轧钢带的冷却装置、热轧钢带的制造方法以及热轧钢带的生产线
JP4029865B2 (ja) 2004-06-04 2008-01-09 住友金属工業株式会社 熱延鋼板の製造設備及び熱延鋼板の製造方法
JP4029871B2 (ja) 2004-07-22 2008-01-09 住友金属工業株式会社 鋼板の冷却装置、熱延鋼板の製造装置及び製造方法
JP4586682B2 (ja) * 2005-08-30 2010-11-24 Ｊｆｅスチール株式会社 鋼板の熱間圧延設備および熱間圧延方法
JP2006035223A (ja) 2005-09-20 2006-02-09 Eacle Kk 比重選別機、及び土木・建築の廃材から骨材を再生する方法
JP4924538B2 (ja) 2008-05-23 2012-04-25 住友金属工業株式会社 熱延鋼板の製造装置及び製造方法
JP4678069B1 (ja) * 2009-03-30 2011-04-27 Ｊｆｅスチール株式会社 熱延鋼板の冷却装置
JP5673530B2 (ja) 2009-06-30 2015-02-18 新日鐵住金株式会社 熱延鋼板の冷却装置、冷却方法、製造装置、及び、製造方法
JP4788851B2 (ja) 2009-06-30 2011-10-05 住友金属工業株式会社 鋼板の冷却装置、熱延鋼板の製造装置及び製造方法
JP4678448B2 (ja) 2009-07-15 2011-04-27 住友金属工業株式会社 熱延鋼板の製造装置、及び鋼板の製造方法
IN2012DN02260A (zh) 2009-10-07 2015-08-21 Nippon Steel & Sumitomo Metal Corp
JP4735785B1 (ja) 2009-11-24 2011-07-27 住友金属工業株式会社 熱延鋼板の製造方法、および熱延鋼板の製造装置
BR112012022221A2 (pt) * 2010-03-11 2016-07-05 Sumito Metal Ind Ltd processo para a fabricação e aparelho para a fabricação de folha de aço laminado a quente
JP5531852B2 (ja) * 2010-08-16 2014-06-25 新日鐵住金株式会社 冷媒流量の決定方法
JP5646261B2 (ja) 2010-09-22 2014-12-24 三菱日立製鉄機械株式会社 熱延鋼帯の冷却装置
JP4918155B2 (ja) 2010-09-28 2012-04-18 三菱日立製鉄機械株式会社 熱延鋼帯の製造装置及び製造方法
TWI445581B (zh) 2011-03-01 2014-07-21 Nippon Steel & Sumitomo Metal Corp 熱軋鋼板的製造裝置以及熱軋鋼板的製造方法
US9211574B2 (en) * 2011-07-27 2015-12-15 Nippon Steel & Sumitomo Metal Corporation Method for manufacturing steel sheet

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022115A (ja) 1983-07-18 1985-02-04 Derufuai:Kk ポリゴンミラ駆動装置
JPS60221115A (ja) 1984-04-04 1985-11-05 Kobe Steel Ltd 鋼板冷却方法
JPS60243226A (ja) 1984-05-15 1985-12-03 Kawasaki Steel Corp 熱間圧延材の材質制御方法および装置
WO2002070157A1 (de) 2001-03-03 2002-09-12 Sms Demag Aktiengesellschaft Verfahren zum entzundern von bändern
US20080257522A1 (en) 2004-12-03 2008-10-23 Joachim Schwellenbach Csp Continuous Casting System With a Roler Hearth Furnace and Pivoting Conveyors
EP2072157B1 (en) 2006-10-30 2017-04-19 JFE Steel Corporation Method of cooling hot-rolled steel strip
JP2010227991A (ja) 2009-03-30 2010-10-14 Jfe Steel Corp 熱鋼板の冷却設備
US20120068391A1 (en) 2009-06-30 2012-03-22 Sumitomo Metal Industries, Ltd. Cooling apparatus, cooling method, manufacturing apparatus and manufacturing method of hot-rolled steel sheet
EP2505277A1 (en) 2009-11-24 2012-10-03 Sumitomo Metal Industries Limited Hot-rolled steel sheet manufacturing device, and hot-rolled steel sheet manufacturing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. NECATI ÖZISIK: "Heat Transfer - A Basic Approach", 1985, ISBN: 0-07-047982-8, article "Heat transfer", pages: 30-37 - 490-493, XP055438575

Also Published As

Publication number Publication date
KR20150139612A (ko) 2015-12-11
JP6138347B2 (ja) 2017-05-31
CN105324190A (zh) 2016-02-10
DE102013019698A1 (de) 2014-11-06
RU2635500C2 (ru) 2017-11-13
RU2015151581A (ru) 2017-06-08
US9833823B2 (en) 2017-12-05
US20160082491A1 (en) 2016-03-24
WO2014177664A1 (de) 2014-11-06
EP2991783A1 (de) 2016-03-09
KR101759915B1 (ko) 2017-07-20
CN105324190B (zh) 2017-10-31
JP2016516590A (ja) 2016-06-09

Similar Documents

Publication Publication Date Title
EP2991783B1 (de) Verfahren zur herstellung eines metallischen bandes
AT512399B1 (de) Verfahren zum Herstellen eines mikrolegierten Röhrenstahls in einer Gieß-Walz-Verbundanlage und mikrolegierter Röhrenstahl
DE3825634C2 (de) Verfahren zur Erzeugung von Warmbad oder Grobblechen
EP2516075B1 (de) Thermomechanisches behandlungsverfahren
DE102004061284A1 (de) Verfahren zum Erzeugen von Warmbändern aus Leichtbaustahl
EP2401413B1 (de) Mikrolegierter kohlenstoffstahl als texturgewalzter bandstahl insbesondere für federelemente
EP2507399B1 (de) Warmwalzwerk und verfahren zum warmwalzen eines metallbandes oder -blechs
EP2651578B1 (de) WALZSTRAßE ZUR RÖHRENSTAHL- UND DÜNNBANDERZEUGUNG
EP3902931A1 (de) Verfahren zur herstellung von konventionell warmgewalzten, profilierten warmbanderzeugnissen
EP1918403A1 (de) Verfahren zum Herstellen von Stahl-Flachprodukten aus einem ein martensitisches Gefüge bildenden Stahl
DE102009036378A1 (de) Verfahren und Vorrichtung zum Herstellen eines mikrolegierten Stahls, insbesondere eines Röhrenstahls
DE19520832A1 (de) Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften
DE102018132908A1 (de) Verfahren zur Herstellung von thermo-mechanisch hergestellten Warmbanderzeugnissen
DE102014005662A1 (de) Werkstoffkonzept für einen umformbaren Leichtbaustahl
DE3518925C2 (zh)
DE60203733T2 (de) In-line-verfahren zum rekristallisieren von erstarrten grobbändern in unlegiertem stahl und niedrig legiertem stahl
DE102015210863A1 (de) Gieß-Walz-Anlage und Verfahren zu deren Betrieb
EP3206808B1 (de) Anlage und verfahren zur herstellung von grobblechen
DE102006032617B4 (de) Verfahren zur Herstellung eines zum Formhärten geeigneten Blechhalbzeugs
EP3899060A1 (de) Verfahren zur herstellung von konventionell warmgewalzten warmbanderzeugnissen
EP3719147A1 (de) Warmgewalztes stahlflachprodukt und verfahren zu seiner herstellung
DE102009048567B4 (de) Verfahren und Anordnung zum Kühlen eines Gießstrangs in einer Stranggießanlage
WO2022258376A1 (de) Verfahren zur herstellung eines mikrolegierten stahls, ein mit dem verfahren hergestellter mikrolegierter stahl und giess-walz-verbundanlage
DE19913498C1 (de) Verfahren zum Herstellen eines Warmbandes und Warmbandlinie zur Durchführung des Verfahrens
WO2008052920A1 (de) Verfahren zum herstellen von stahl-flachprodukten aus einem mit aluminium legierten mehrphasenstahl

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20151203

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DER ERFINDER HAT AUF SEINE NENNUNG VERZICHTET.

INTG Intention to grant announced

Effective date: 20160916

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 870668

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014002858

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170301

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170601

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502014002858

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170701

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170703

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: ARCELORMITTAL

Effective date: 20171129

Opponent name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Effective date: 20171130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170502

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170430

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170430

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170430

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140430

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170301

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: ARCELORMITTAL

Effective date: 20171129

REG Reference to a national code

Ref country code: DE

Ref legal event code: R103

Ref document number: 502014002858

Country of ref document: DE

Ref country code: DE

Ref legal event code: R064

Ref document number: 502014002858

Country of ref document: DE

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230426

Year of fee payment: 10

Ref country code: DE

Payment date: 20220620

Year of fee payment: 10

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230707

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20230420

Year of fee payment: 10

27W Patent revoked

Effective date: 20221122

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Effective date: 20221122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230419

Year of fee payment: 10

REG Reference to a national code

Ref country code: AT

Ref legal event code: MA03

Ref document number: 870668

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 20221122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 20221122