EP0761326B1 - Installation pour la production d'une bande mince laminée à chaud - Google Patents
Installation pour la production d'une bande mince laminée à chaud Download PDFInfo
- Publication number
- EP0761326B1 EP0761326B1 EP96113523A EP96113523A EP0761326B1 EP 0761326 B1 EP0761326 B1 EP 0761326B1 EP 96113523 A EP96113523 A EP 96113523A EP 96113523 A EP96113523 A EP 96113523A EP 0761326 B1 EP0761326 B1 EP 0761326B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stand
- reversing
- production plant
- plant according
- stands
- 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
Links
- 238000009434 installation Methods 0.000 title 1
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 42
- 238000000034 method Methods 0.000 description 6
- 241001136792 Alle Species 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- B21B1/22—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
- B21B1/30—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 non-continuous process
- B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/34—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
-
- 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
- B21B1/466—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 non-continuous process, i.e. the cast being cut before 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
Definitions
- the invention relates to a production plant for the production of hot-rolled flat products, consisting of a multi-stand Rolling mill on at least the first stand as a reversing stand is designed, an outlet roller table with devices for cooling of the hot strip and with downstream winding machines for winding of the tape.
- a generic rolling mill is known from US-A-5 150 597 become.
- Such rolling plants for the production of hot-rolled strips are generally designed and operated today so that the Forming takes place in the individual scaffolding austenitic, that is, it is ensured that the rolling temperatures in the individual Rolling stands above the GOS line of the iron carbon diagram lie. Only after the last rolling pass, which is necessary to achieve a fine-grained final structure as close as possible to the GOS line should, cooling to the reel temperature takes place with structural change in the cooling section or in the wound bundle.
- the finish rolling temperature that is the temperature in the last roll stand of the rolling mill depending on the height the carbon content at approx. 840 to 920 ° C.
- Compliance with the Final rolling temperature is done by changing the final rolling speed, with the natural cooling of the strip in the rolling mill and the supply of heat through the drive power of the roll stands can be controlled.
- This method can be used without any problems for strip thicknesses above a minimum strip thickness, depending on the type of road is of the order of 1.3 mm. Will this strip thickness below the required rolling speed with values above 12 m per second at the tape head, a height that no longer in the free run on the roller table behind the rolling mill can be mastered.
- a preferred method sees pre-rolling in austenitic Range up to an intermediate thickness of 2 to 8 mm and one finish roll in the ferritic range to the lowest final thicknesses below of 1.3 mm in front.
- the rolling stock must be between the two process stages from the final rolling temperature in the austenitic range to the rolling temperature be cooled in the ferritic range. This means one Cooling from the temperature range of 840 to 920 ° C to the Temperature range from 600 to 780 ° C.
- the finish rolling temperature is after the second deformation stage also in the range of 600 to 780 ° C and thus on the order of magnitude, in which recrystallization of the Structure occurs in the wound bundle.
- a structure is created which means the use of the product without further cold forming or Allows heat treatment.
- Compliance is essential for a good result a minimum cooling time for cooling from the austenitic Area in the ferritic area. So that the transformation of austenite sufficient cooling in ferrite, this minimum cooling time be respected. This lies depending on the selected temperature and alloy composition for entry into the first ferritic forming on the order of a few seconds to towards a few minutes.
- the process described above is implemented in one conventionally designed hot strip mill considerable difficulties.
- the transition from austenitic to ferritic Forming should be carried out in the thickness range from 2 to 8 mm, that is, in a thickness range in which the rolling stock is roughly in Located in the middle of a conventional finishing train. Because the lead time from scaffolding to scaffolding at this point only a few seconds is, in principle, it is possible to implement cooling, however, adherence to the time required for the conversion cannot be realized. Carrying out ferritic rolling according to the method described is conventional for that designed hot strip mill impossible.
- At least the first framework the rolling mill is designed as a reversing stand, the at least A reel furnace is upstream and downstream, with between in front of the reel furnace and the following reversing stand controllable cooling device is provided.
- a production plant constructed in this way can, like conventional ones Plants operated in the austenitic area.
- This will be Rolled material supplied by a roughing mill or thin slab casting machine, which usually has a thickness of 50 - 100 mm, in one Oven tempered to approx. 1100 ° C and in which one or more Scaffolding existing reversing line (Steckel No) by queuing rolled by one or more stands and in which the Steckel tile subsequent Steckel or reel furnace.
- the strip is removed from the Steckel furnace withdrawn and in one or more scaffolding of the Steckel tile approx. 5 to 15 mm thick rolled down and then in the input side Steckel oven wound up.
- the temperature of the belt is in this area still above 850 ° C.
- the tape is from on the input side of the Steckel furnace and in the Steckel stands and rolled down the rest of the rolling mill to a thickness of approximately 1 mm and wound up by the winding machine.
- a cooling device be provided, by means of which the approx. 5 to 15 mm thick Belt is cooled to temperatures below 850 ° C.
- the tape can be converted in the Steckelstrasse and the rest rolled down the rolling mill into a strip with a thickness of approx. 1 mm become.
- the output side Dispense with reel furnace there is also the possibility on the output side Dispense with reel furnace.
- the belt is opened in the reversing line rolled down about 5 to 15 mm, again here before the It is decided to wind up on the reel furnace on the input side, whether by switching the cooling device on or off in the following Rolling process in the ferritic or austenitic range should be rolled.
- Figure 1 shows a continuous caster 1, the scissors 2, a Oven 3, a pair of scissors 4, which is only intended for emergency cuts and a descaling device 5 connects.
- one each Controllable cooling device follows as required, by means of which the belt if necessary can be cooled in the ferritic range.
- the strip can also have austenitic temperatures or after cooling in the cooling device 7 with its temperature are only in the ferritic range.
- a heating device 12 preferably closes the reversing line an induction furnace, which can be used for the belt if necessary temperature required in the austenitic or ferritic range.
- the heater 12 follows one further scissors 13, a descaling device 14, the rolling mill 15, a winding machine 16, a cooling section 17 and another Winding machine 18.
- Figure 3 shows a similar production facility as in Figure 2. Here is shown after the emergency scissors 4, the reel furnace 6, which the Cooling and / or descaling device 19, the reversing line 20 ', the descaling device 14, the reversing line 20 ′′ and a Roller table 22 connects.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Claims (9)
- Installation de production pour la réalisation de produits plats laminés à chaud, comprenant une chaíne de laminage (8, 9, 15, 20) à plusieurs cages, dans laquelle la première cage au moins (8) est réalisée sous forme de cage réversible, comprenant une piste de sortie à rouleaux avec des moyens pour le refroidissement de la bande chaude et des machines d'embobinage (16, 18) agencées en aval pour embobiner la bande,
caractérisée en ce que
un four à dévidoir respectif (6, 11) est agencé en amont et en aval de la première cage (8) au moins de la chaíne de laminage (20), et en ce qu'il est prévu un dispositif de refroidissement commandé (7) entre le four à dévidoir amont (6) et la cage réversible (8) qui le suit. - Installation de production selon la revendication 1,
caractérisée en ce qu'il est prévu un dispositif de chauffage (12) entre la cage réversible (8), ou respectivement entre les cages réversibles (8, 9) et la cage suivante de la chaíne de laminage (15). - Installation de production selon l'une ou l'autre des revendications 1 et 2,
caractérisée en ce qu'il est prévu un dispositif de refroidissement entre la cage réversible (8), ou respectivement entre les cages réversibles (8, 9) et les cages suivantes de la chaíne de laminage (15). - Installation de production de selon l'une des revendications 1 à 3,
caractérisée en ce que des dispositifs de décalaminage (14) sont associés aux dispositifs de refroidissement et/ou de chauffage (7, 12). - Installation de production selon l'une ou l'autre des revendications 1 et 4,
caractérisée en ce que toutes les cages de la chaíne de laminage (20) sont réalisées sous forme de cages réversibles. - Installation de production selon la revendication 5,
caractérisée en ce que la piste de sortie à rouleaux (22) présente une longueur qui permet la réception d'un tronçon non laminé de la bande de coulée. - Installation de production selon la revendication 6,
caractérisée en ce que seule la machine d'embobinage (16, 18) est disposée en aval de la chaíne de laminage (20', 20"). - Installation de production selon l'une des revendications 1 à 7,
caractérisée en ce que le four à dévidoir (6) disposé en amont de la première cage de laminoir (8) est susceptible de fonctionner avec une température prédéterminée. - Installation de production selon l'une des revendications 1 à 8,
caractérisée en ce qu'il est prévu deux fours à dévidoir en amont de la première cage de laminoir (8), maintenus de préférence à des températures différentes.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19532792 | 1995-09-06 | ||
DE19532792 | 1995-09-06 | ||
DE19538341 | 1995-10-14 | ||
DE19538341A DE19538341A1 (de) | 1995-09-06 | 1995-10-14 | Warmbandproduktionsanlage für das Walzen von dünnem Walzband |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0761326A1 EP0761326A1 (fr) | 1997-03-12 |
EP0761326B1 true EP0761326B1 (fr) | 2000-02-09 |
Family
ID=26018324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96113523A Expired - Lifetime EP0761326B1 (fr) | 1995-09-06 | 1996-08-23 | Installation pour la production d'une bande mince laminée à chaud |
Country Status (7)
Country | Link |
---|---|
US (2) | US5743125A (fr) |
EP (1) | EP0761326B1 (fr) |
JP (1) | JP4024329B2 (fr) |
CN (1) | CN1106233C (fr) |
AT (1) | ATE189627T1 (fr) |
CA (1) | CA2184798C (fr) |
ES (1) | ES2142528T3 (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1003293C2 (nl) * | 1996-06-07 | 1997-12-10 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een stalen band. |
CA2275873C (fr) * | 1996-12-19 | 2005-02-08 | Hoogovens Staal B.V. | Procede et dispositif de production d'un ruban ou d'une tole d'acier |
GB2322320A (en) * | 1997-02-21 | 1998-08-26 | Kvaerner Metals Cont Casting | Continuous casting with rolling stages separated by a temperature controlling stage |
IT1290743B1 (it) * | 1997-04-10 | 1998-12-10 | Danieli Off Mecc | Procedimento di laminazione per prodotti piani con spessori sottili e relativa linea di laminazione |
EP0893168B1 (fr) * | 1997-07-23 | 2002-05-22 | SMS Demag AG | Méthode pour produire des bandes à chaud de 0.5 mm d'épaisseur dans un train |
DE19758108C1 (de) * | 1997-12-17 | 1999-01-14 | Mannesmann Ag | Produktionsverfahren und -anlage zur endlosen Erzeugung von warmgewalzten dünnen Flachprodukten |
GB9802443D0 (en) * | 1998-02-05 | 1998-04-01 | Kvaerner Metals Cont Casting | Method and apparatus for the manufacture of light gauge steel strip |
GB9803409D0 (en) * | 1998-02-19 | 1998-04-15 | Kvaerner Metals Davy Ltd | Method and apparatus for the manufacture of light gauge steel strip |
DE19815032A1 (de) | 1998-04-03 | 1999-10-07 | Schloemann Siemag Ag | Walzverfahren für ein Metallband |
US6182490B1 (en) * | 1999-03-19 | 2001-02-06 | Danieli Technology Inc. | Super thin strip hot rolling |
DE10137944A1 (de) * | 2001-08-07 | 2003-02-20 | Sms Demag Ag | Warmwalzanlage |
DE10203711A1 (de) * | 2002-01-31 | 2003-08-14 | Sms Demag Ag | Verfahren und Anlage zur Herstellung von Warmband aus austenitischen nichtrostenden Stählen |
DE102008010062A1 (de) * | 2007-06-22 | 2008-12-24 | Sms Demag Ag | Verfahren zum Warmwalzen und zur Wärmebehandlung eines Bandes aus Stahl |
CN101590488B (zh) * | 2008-05-27 | 2011-06-15 | 中冶赛迪工程技术股份有限公司 | 一种热轧带钢粗轧工序的轧制工艺技术 |
EP2301685A1 (fr) * | 2009-09-23 | 2011-03-30 | Siemens Aktiengesellschaft | Procédé de commande pour une installation de traitement d'un produit de laminage étendu en longueur |
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 |
CN101882796B (zh) * | 2010-06-02 | 2013-03-27 | 马鞍山钢铁股份有限公司 | 一种高速线材轧机抛尾速升机械动能回馈速率的控制方法 |
IT1405453B1 (it) * | 2010-06-14 | 2014-01-10 | Danieli Off Mecc | Procedimento di laminazione per prodotti piani e relativa linea di laminazione |
DE102013214939A1 (de) | 2013-07-30 | 2015-02-05 | Sms Siemag Ag | Gießwalzanlage zum Herstellen von Metallbändern |
CN104785521A (zh) * | 2015-04-21 | 2015-07-22 | 山东泰山钢铁集团有限公司 | 410s铁素体不锈钢轧制方法及其*** |
JP6233614B2 (ja) * | 2016-01-27 | 2017-11-22 | Jfeスチール株式会社 | 熱延鋼帯の製造設備列および熱延鋼帯の製造方法 |
IT201700028768A1 (it) * | 2017-03-15 | 2018-09-15 | Danieli Off Mecc | Impianto combinato di colata continua e laminazione di nastri metallici a caldo |
CN108787745A (zh) * | 2017-04-26 | 2018-11-13 | 中国宝武钢铁集团有限公司 | 一种控温连续轧制生产镁合金产品的生产线 |
CN107876564A (zh) * | 2017-12-15 | 2018-04-06 | 唐山全丰薄板有限公司 | 一种铁素体轧制控制装置及其控制工艺 |
CN109482646B (zh) * | 2018-10-31 | 2020-03-13 | 燕山大学 | 基于无头轧制动态变规程铁素体轧制方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5948688B2 (ja) * | 1977-04-13 | 1984-11-28 | 株式会社日立製作所 | 可逆圧延機のク−ラント装置 |
US4505141A (en) * | 1982-07-13 | 1985-03-19 | Tippins Machinery Company, Inc. | Apparatus for thermomechanically rolling hot strip product to a controlled microstructure |
JPS59110404A (ja) * | 1982-12-14 | 1984-06-26 | Ishikawajima Harima Heavy Ind Co Ltd | 熱間タンデムリバ−ス圧延設備 |
JPS62151209A (ja) * | 1985-12-25 | 1987-07-06 | Sumitomo Metal Ind Ltd | 鋼板の圧延方法 |
US4782683A (en) * | 1986-03-03 | 1988-11-08 | Tippins Incorporated | Hot strip mill shape processor and method |
AU2669088A (en) * | 1987-12-18 | 1989-06-22 | Hitachi Limited | Apparatus and method for hot-rolling slab into sheets |
JPH0694043B2 (ja) * | 1989-05-26 | 1994-11-24 | 川崎製鉄株式会社 | 多段式レバース圧延機 |
JP3152241B2 (ja) * | 1990-06-12 | 2001-04-03 | 株式会社日立製作所 | 熱間薄板製造設備及び製造方法 |
IT1244295B (it) * | 1990-07-09 | 1994-07-08 | Giovanni Arvedi | Processo ed impianto per l'ottenimento di nastri di acciaio avvolti, aventi caratteristiche di laminati a freddo ottenuti direttamente in linea di laminazione a caldo |
US5140837A (en) * | 1991-05-28 | 1992-08-25 | Tippins Incorporated | Process for rolling soft metals |
US5540074A (en) * | 1994-12-07 | 1996-07-30 | Ipsco Enterprises Inc. | Unitary assembly of peripheral devices for use with steckel mill |
-
1996
- 1996-08-23 ES ES96113523T patent/ES2142528T3/es not_active Expired - Lifetime
- 1996-08-23 AT AT96113523T patent/ATE189627T1/de active
- 1996-08-23 US US08/701,969 patent/US5743125A/en not_active Expired - Lifetime
- 1996-08-23 EP EP96113523A patent/EP0761326B1/fr not_active Expired - Lifetime
- 1996-09-04 JP JP23423396A patent/JP4024329B2/ja not_active Expired - Fee Related
- 1996-09-04 CA CA002184798A patent/CA2184798C/fr not_active Expired - Fee Related
- 1996-09-06 CN CN96113308A patent/CN1106233C/zh not_active Expired - Fee Related
-
1997
- 1997-08-07 US US08/907,388 patent/US5910184A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1106233C (zh) | 2003-04-23 |
ATE189627T1 (de) | 2000-02-15 |
JP4024329B2 (ja) | 2007-12-19 |
JPH09122709A (ja) | 1997-05-13 |
CA2184798C (fr) | 2008-04-08 |
US5743125A (en) | 1998-04-28 |
CN1150554A (zh) | 1997-05-28 |
US5910184A (en) | 1999-06-08 |
ES2142528T3 (es) | 2000-04-16 |
CA2184798A1 (fr) | 1997-03-07 |
EP0761326A1 (fr) | 1997-03-12 |
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