EP0823294A1 - Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon - Google Patents
Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon Download PDFInfo
- Publication number
- EP0823294A1 EP0823294A1 EP97250225A EP97250225A EP0823294A1 EP 0823294 A1 EP0823294 A1 EP 0823294A1 EP 97250225 A EP97250225 A EP 97250225A EP 97250225 A EP97250225 A EP 97250225A EP 0823294 A1 EP0823294 A1 EP 0823294A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- rolling
- low
- temperature
- carbon
- 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.)
- Withdrawn
Links
Images
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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/02—Austenitic rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/04—Ferritic 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
- B21B45/004—Heating the product
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
- C21D8/0215—Rapid solidification; Thin strip casting
Definitions
- the invention relates to a method and a plant for producing tape low-carbon and ultra-low-carbon steels according to the generic term of Claims 1 and 4.
- the intermediate strip which is hot-rolled in this way, is divided into partial lengths by means of band shears, which are wound into coils and later unwound again for further hot rolling.
- the strip-like material is heated again by inductive heating to a hot rolling temperature above 1100 ° C .; the second hot rolling is carried out at temperatures above Ar 3 . This is followed immediately by cooling to a temperature below the transition point Ar 3, preferably in the range from 600 to 250 ° C.
- the strip material thus produced is then finish-rolled by cold rolling on one or more stands connected in series and wound into coils.
- the known method aims at the production of cold rolled strip with one as little energy expenditure as possible. To do this, use the method of casting close to the final dimension (thin slab production) and does that Hot rolling in part with the heat remaining from the continuous casting process out.
- the object of the present invention is to provide a method and a system for Production of strips from low-carbon and ultra-low-carbon steels to create the kind mentioned in the beginning with the or in an endless process hot rolled ferritic strip can be produced using the casting heat, whereby a control element to achieve the recrystallization temperature in the bundle of over 700 ° C is created.
- the invention proposes that the ferritic rolled finished strip is coiled into a bundle, with a coiling temperature ⁇ 700 ° C is set.
- the reel temperature is ⁇ 700 ° C already during the last rolling passes and / or immediately before the reel is rewound
- the tape is adjusted and the finished tape is wound up at this temperature.
- the targeted setting of this temperature will be the previously missing Control facility created to take advantage of the casting and Rolling temperatures in the area below the ferritic rolling Conversion point (below 738 ° C) and on the other hand at minimum possible energy use the required reel temperature of over 700 ° C to reach.
- Reel temperature of ⁇ 700 ° C during reeling and / or in the finished bundle adjust.
- a facility for performing the above method is characterized by the features of claim 4 characterized.
- the Heating device designed to heat the finished strip as an induction heater is. If namely the heating device in the area of the last roll stand (s) is arranged, so is a very quick response for temperature regulation required. This is determined by the intensity of the coils of an induction heating device enables.
- the heating device is used to heat the federal government train tunnel furnace arranged behind the reel device. It can also Heater can be designed as a conventional hood furnace.
- a targeted temperature profile e.g. the cooling can be carried out in the bunch. It also becomes even Temperature achieved in the coil, which is particularly quicker cooling outer turns or edges of the coil is very important.
- the tunnel oven behind the reel can be arranged perpendicular to the rolling axis and at the same time serve as storage for the bundles.
- a system is roughly shown schematically, which for Implementation of the method according to the invention is suitable.
- the facility exists from the continuous casting device 1 for producing a thin slab 2, which in Subsequent arch structure of the casting plant after solidification into a horizontal Outlet direction is guided.
- a device 10 is used to set one for the Rolling process defined piercing temperature by the from the rolling process resulting temperature maintained or by radiation of the thin slab is reduced. If the temperature coming from the casting process If thin slab is too low for piercing in the rolling mill, heat is added.
- Hot rolling device 4 for producing an intermediate belt.
- the the intermediate strip leaving the hot rolling device 4 is in a cooling device 5 subjected to an accelerated cooling by means of cooling liquid, the selected temperatures according to the invention can be set. That the The intermediate belt leaving the cooling device now has a temperature below 738 ° C and is at these temperatures in a finishing mill in at least three Roll passes ferritically rolled into a strip ⁇ 0.7 mm thick.
- an inductive heating device 7 is provided on rolling mill 6, with which the finished belt is heated to a temperature ⁇ 700 ° C, with which the belt in the subsequent reel device is wound into a bundle. After The belt is reached with the help of the cross-cut shear to achieve the desired coil weight 8 separated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19632448 | 1996-08-05 | ||
DE1996132448 DE19632448A1 (de) | 1996-08-05 | 1996-08-05 | Verfahren und Anlage zur Herstellung von Band aus niedriggekohlten und ultraniedriggekohlten Stählen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0823294A1 true EP0823294A1 (fr) | 1998-02-11 |
Family
ID=7802412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97250225A Withdrawn EP0823294A1 (fr) | 1996-08-05 | 1997-07-31 | Procédé de fabrication d'une bande en acier basse et ultra basse de teneur en carbon |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0823294A1 (fr) |
DE (1) | DE19632448A1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999050463A1 (fr) * | 1998-03-27 | 1999-10-07 | Corus Staal Bv | Procede de production d'un acier de formage ayant de bonnes caracteristiques de formage et acier de formage a basse teneur en carbone |
WO2002011915A1 (fr) * | 2000-08-05 | 2002-02-14 | Sms Demag Aktiengesellschaft | Procede et installation de fabrication de produits plats minces |
WO2008110133A1 (fr) * | 2007-03-12 | 2008-09-18 | Sms Siemag Ag | Procédé de traitement de tôles |
US7832460B2 (en) | 2005-04-07 | 2010-11-16 | Giovanni Arvedi | Process and system for manufacturing metal strips and sheets without discontinuity between continuous casting and rolling |
WO2011076544A3 (fr) * | 2009-12-23 | 2011-08-18 | Sms Siemag Ag | Procédé de laminage à chaud d'une brame et laminoir à chaud |
AT509707A4 (de) * | 2010-05-04 | 2011-11-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse |
RU2463127C2 (ru) * | 2007-11-22 | 2012-10-10 | Сименс Фаи Металз Текнолоджиз Гмбх | Способ непрерывного аустенитного проката изготовленной в процессе непрерывной отливки черновой полосы и комбинированная литейная и прокатная установка для выполнения способа |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1903554A1 (de) * | 1968-01-24 | 1969-08-28 | Sumitomo Metal Ind | Verfahren zur Herstellung von warmgewalztem Bandstahl |
DE3444038A1 (de) * | 1984-12-03 | 1986-06-05 | Ruhrgas Ag, 4300 Essen | Haubenofen und verfahren zum waermebehandeln von behandlungsgut |
EP0306076A1 (fr) * | 1987-09-01 | 1989-03-08 | Hoogovens Groep B.V. | Fabrication de bandes d'acier formables |
EP0370575A1 (fr) * | 1988-11-24 | 1990-05-30 | Hoogovens Groep B.V. | Procédé pour la fabrication d'acier déformable |
WO1992008557A1 (fr) * | 1990-11-13 | 1992-05-29 | Mannesmann Aktiengesellschaft | Systeme et procede servant a former une bande mince et plate d'acier lamine a chaud |
EP0499850A1 (fr) * | 1991-02-06 | 1992-08-26 | LOI Thermprocess GmbH | Procédé et four continu pour le traitement thermique d'articles |
DE4322924C1 (de) * | 1993-07-05 | 1994-10-27 | Mannesmann Ag | Verfahren und Vorrichtung zum Herstellen von warmgewalztem kohlenstoffhaltigem Stahlband |
DE19520832A1 (de) * | 1994-10-20 | 1996-04-25 | Mannesmann Ag | Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften |
DE19600990A1 (de) * | 1996-01-14 | 1997-07-17 | Thyssen Stahl Ag | Verfahren zum Warmwalzen von Stahlbändern |
-
1996
- 1996-08-05 DE DE1996132448 patent/DE19632448A1/de not_active Ceased
-
1997
- 1997-07-31 EP EP97250225A patent/EP0823294A1/fr not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1903554A1 (de) * | 1968-01-24 | 1969-08-28 | Sumitomo Metal Ind | Verfahren zur Herstellung von warmgewalztem Bandstahl |
DE3444038A1 (de) * | 1984-12-03 | 1986-06-05 | Ruhrgas Ag, 4300 Essen | Haubenofen und verfahren zum waermebehandeln von behandlungsgut |
EP0306076A1 (fr) * | 1987-09-01 | 1989-03-08 | Hoogovens Groep B.V. | Fabrication de bandes d'acier formables |
EP0370575A1 (fr) * | 1988-11-24 | 1990-05-30 | Hoogovens Groep B.V. | Procédé pour la fabrication d'acier déformable |
WO1992008557A1 (fr) * | 1990-11-13 | 1992-05-29 | Mannesmann Aktiengesellschaft | Systeme et procede servant a former une bande mince et plate d'acier lamine a chaud |
EP0499850A1 (fr) * | 1991-02-06 | 1992-08-26 | LOI Thermprocess GmbH | Procédé et four continu pour le traitement thermique d'articles |
DE4322924C1 (de) * | 1993-07-05 | 1994-10-27 | Mannesmann Ag | Verfahren und Vorrichtung zum Herstellen von warmgewalztem kohlenstoffhaltigem Stahlband |
DE19520832A1 (de) * | 1994-10-20 | 1996-04-25 | Mannesmann Ag | Verfahren und Vorrichtung zur Herstellung von Stahlband mit Kaltwalzeigenschaften |
DE19600990A1 (de) * | 1996-01-14 | 1997-07-17 | Thyssen Stahl Ag | Verfahren zum Warmwalzen von Stahlbändern |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999050463A1 (fr) * | 1998-03-27 | 1999-10-07 | Corus Staal Bv | Procede de production d'un acier de formage ayant de bonnes caracteristiques de formage et acier de formage a basse teneur en carbone |
WO2002011915A1 (fr) * | 2000-08-05 | 2002-02-14 | Sms Demag Aktiengesellschaft | Procede et installation de fabrication de produits plats minces |
KR100796645B1 (ko) * | 2000-08-05 | 2008-01-22 | 에스엠에스 데마그 악티엔게젤샤프트 | 얇고 평탄한 제품을 제조하는 방법 및 장치 |
US7491276B2 (en) | 2000-08-05 | 2009-02-17 | Sms Demag Ag | Production method and installation for producing thin flat products |
US7832460B2 (en) | 2005-04-07 | 2010-11-16 | Giovanni Arvedi | Process and system for manufacturing metal strips and sheets without discontinuity between continuous casting and rolling |
WO2008110133A1 (fr) * | 2007-03-12 | 2008-09-18 | Sms Siemag Ag | Procédé de traitement de tôles |
CN101652195B (zh) * | 2007-03-12 | 2013-01-23 | Sms西马克股份公司 | 用于处理金属板的方法 |
RU2463127C2 (ru) * | 2007-11-22 | 2012-10-10 | Сименс Фаи Металз Текнолоджиз Гмбх | Способ непрерывного аустенитного проката изготовленной в процессе непрерывной отливки черновой полосы и комбинированная литейная и прокатная установка для выполнения способа |
WO2011076544A3 (fr) * | 2009-12-23 | 2011-08-18 | Sms Siemag Ag | Procédé de laminage à chaud d'une brame et laminoir à chaud |
CN102655959A (zh) * | 2009-12-23 | 2012-09-05 | Sms西马格股份公司 | 用于热轧制板坯的方法以及热轧机 |
KR101421976B1 (ko) * | 2009-12-23 | 2014-07-22 | 에스엠에스 지마크 악티엔게젤샤프트 | 슬래브 열간 압연 방법 및 열간 압연기 |
RU2528560C2 (ru) * | 2009-12-23 | 2014-09-20 | Смс Зимаг Аг | Способ горячей прокатки сляба и стан горячей прокатки |
CN102655959B (zh) * | 2009-12-23 | 2016-05-18 | Sms集团有限责任公司 | 用于热轧制板坯的方法以及热轧机 |
AT509707B1 (de) * | 2010-05-04 | 2011-11-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse |
AT509707A4 (de) * | 2010-05-04 | 2011-11-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum warmwalzen von stahlbändern und warmwalzstrasse |
Also Published As
Publication number | Publication date |
---|---|
DE19632448A1 (de) | 1998-02-12 |
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RBV | Designated contracting states (corrected) |
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Withdrawal date: 19991125 |