WO2011018217A2 - Vorrichtung und verfahren zum herstellen eines dünnen warmbandes - Google Patents
Vorrichtung und verfahren zum herstellen eines dünnen warmbandes Download PDFInfo
- Publication number
- WO2011018217A2 WO2011018217A2 PCT/EP2010/004913 EP2010004913W WO2011018217A2 WO 2011018217 A2 WO2011018217 A2 WO 2011018217A2 EP 2010004913 W EP2010004913 W EP 2010004913W WO 2011018217 A2 WO2011018217 A2 WO 2011018217A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolls
- strip
- wear
- low
- casting
- Prior art date
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
-
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/032—Rolls for sheets or strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/24—Roll wear
Definitions
- the invention relates to an apparatus for producing a thin Warmban- by casting rolls in a continuous process, with a casting machine, in which a thin slab is cast, with at least one of the casting machine downstream rolling mill, in which the thin slab rolled using the primary heat of the casting process and with a number of finishing mills arranged in a rear region in the conveying direction of the strip, in which the strip can be rolled with work rolls to a final thickness. Furthermore, the invention relates to a method for producing a thin hot strip by casting rolls in an endless process.
- Plants of this type are known as thin slab / thin strip caster under the name CSP plants. They enable efficient production of hot strip, if the rigid connection of continuous casting plant and rolling train and their temperature control is dominated by the entire plant.
- EP 0 286 862 A1 and EP 0 771 596 B1 describe endless rolling out of the casting heat. Here, the casting and rolling processes are directly coupled. A separation of the endless belt with a pair of scissors is done just before the reel. Similar processes for the continuous production of strip steel in the coupling of casting and rolling plant are disclosed in EP 0 415 987 B2 and EP 0 889 762 B1
- HSS rolls work rolls in rolling mills, which have a special low-wear roll surface, which is formed in particular by a layer of low-wear material.
- Such rolls are known as HSS rolls or semi-HSS rolls or as PM rolls.
- HSS stands for high-speed steel and a material that has a relatively low carbide content. After casting, a re-esterification takes place with subsequent hardening and tempering.
- the PM rolls are those made by the HIP process (hot isostatic pressing).
- powdery shell material is pressed together under high pressure.
- a roll core is conventionally prefabricated (nodular cast iron or forged).
- the HSS shell material is connected to the core.
- the core as well as the powdery shell material in special HIP systems are heated above its yield point at a very high, all-round gas pressure and high temperature (about 1100 ° C.) and thereby compressed.
- such rolls are not yet used for finish rolling, but only in the front of a rolling stand squadron.
- the invention is therefore based on the object, a device and a method for producing a thin hot strip according to the above-mentioned type so that they can be achieved increased efficiency and higher efficiency.
- the work rolls of the finishing mills have a low-wear roller surface. This is achieved in particular by forming the surface of the roll by means of a layer of low-wear material.
- the low-wear layer can consist of powder metallurgical material in a conventional manner.
- the low-wear layer is preferably made by the hot isostatic pressing (HIP) method.
- the wear-resistant layer can also consist of a metal-ceramic composite material (so-called "cermets").
- the work rolls are designed as HSS rolls or semi-HSS rolls (high-speed steel rolls).
- all work rolls of the at least one rolling train have a low-wear roll surface.
- the method for producing a thin hot strip by casting rolls in an endless process is characterized in that the work rolls of the finish rolling stands are those with a low-wear roll surface, in particular those with a layer of low-wear material.
- the roll gap between the work rolls is raised at least in the area of the finish rolling stands before the strip enters, and the roll gap is moved to the setpoint after the strip has entered.
- the drive-up of the roll gap is preferably carried out to a value at which a damage-free for the work roll rolling is possible at a certain thickness to be rolled.
- the roll gap is raised from the desired value to a larger value.
- the strip is rolled in the finish rolling stands to a finished strip thickness between 0.5 mm and 1.5 mm.
- the basic idea of the invention specifically focuses on the fact that - what is previously unknown and uncommon - for the finish rolling of a thin hot strip by casting rollers in a continuous process wear-resistant work rolls are used, which are indeed known as such, but due to the high roll load at Prefabricated rolls could not be used so far. This is supported or made possible by the described procedural measures, which ensure that even during the finish rolling process, there is no excessive load on the work rolls.
- the productivity of the entire system can be increased by extending the rolling programs or casting sequences.
- FIG. 1 is a schematic view of a cast roll mill according to a first embodiment of the invention with roughing line and finishing train; and Fig. 2 is a casting rolling in an alternative to Fig. 1 embodiment of the invention with a compact rolling mill.
- an apparatus for producing a thin hot strip 1 is outlined.
- the strip is produced by casting rolls in an endless process.
- a casting machine 2 is provided, in which initially a thin slab 3 is poured.
- a rolling train 4, 5 is connected downstream.
- the thin slab 3 is gradually rolled by using the primary heat of the casting process to the finished strip.
- a roughing 4 and a finishing train 5 are provided.
- the finishing train 5 has a number of finish rolling stands 7, which are arranged in a rear region 6 of the rolling train 4, 5 viewed in the conveying direction F.
- the strip 1 is here rolled to the final thickness, which is preferably in the range between 0.5 mm and 1, 5 mm.
- the rolling of the strip in the finish rolling stands 7 takes place with work rolls 8 supported by support rolls.
- the work rolls 8 of the finishing stands 7 have a low-wear roll surface.
- the roll surface is formed by a layer of low-wear material.
- Metal-ceramic composites also referred to as cermets, are used as wear-resistant materials in a large number of components due to the combination of high hardness and fracture toughness, which is also utilized in the present case.
- use of the low-wear work rolls can be provided in all the structures of the hot strip mill, ie also in the roughing train 4 (the latter measure is already known as such in the prior art).
- Threading with an open nip or threading the tape head can be carried out with product dimensions that are sure to be produced (thicker finished strip). Only after the threading of the strip into the finishing stand is the thickness of the roll gap then set to a critical thickness to be produced, preferably to a value below 1, 5 mm.
- the unthreading of the tape can be done again with a larger final thickness or open nip.
- the device shown in Fig. 2 differs from that of FIG. 1 essentially only in that here a compact rolling mill 4 is provided. However, this also has a downstream in the conveying direction F ren part 6, in which the work rolls 8 are provided with low-wear roller surface. In this plant, an endless rolling process or alternatively a batch operation can be run.
- the work rolls 8 used in the finishing stands 7 are known as such under the designations HSS rolls, semi-HSS rolls, PM-HIP rolls or cermet rolls.
- Other sheath materials are also possible which are wear-resistant but generally sensitive.
- the rolling program length is usually determined by the depth of wear or shape of the work rolls or - associated - the desired band contour. Particularly disturbing are a high band edge drop (edge drop) or beads by z. B. high edge wear.
- the roll and strip surface quality significantly influences the rolling program length. Not only high roughness, but also impressions on the roll surface by z. B. banded band ends, are relevant.
- this technology namely the thin strip rolling in an endless thin slab plant with the use of low-wear work rolls (also in the last framework) is particularly suitable.
- the endless technology avoids rolling defects and the low-wear rollers improve the quality of the product and allow lengthening of the rolling program length.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10747585A EP2464469A2 (de) | 2009-08-12 | 2010-08-11 | Vorrichtung und verfahren zum herstellen eines dünnen warmbandes |
CN2010800468628A CN102574174A (zh) | 2009-08-12 | 2010-08-11 | 用于制造薄的热轧带的装置和方法 |
US13/388,410 US20120175076A1 (en) | 2009-08-12 | 2010-08-11 | Apparatus for making thin hot strip |
RU2012108837/02A RU2012108837A (ru) | 2009-08-12 | 2010-08-11 | Устройство и способ для изготовления тонкой горячекатаной полосы |
JP2012524144A JP2013501625A (ja) | 2009-08-12 | 2010-08-11 | 薄い熱間ストリップを製造するための装置および方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009037278A DE102009037278A1 (de) | 2009-08-12 | 2009-08-12 | Vorrichtung und Verfahren zum Herstellen eines dünnen Warmbandes |
DE102009037278.4 | 2009-08-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011018217A2 true WO2011018217A2 (de) | 2011-02-17 |
WO2011018217A3 WO2011018217A3 (de) | 2011-04-07 |
Family
ID=43448280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/004913 WO2011018217A2 (de) | 2009-08-12 | 2010-08-11 | Vorrichtung und verfahren zum herstellen eines dünnen warmbandes |
Country Status (9)
Country | Link |
---|---|
US (1) | US20120175076A1 (de) |
EP (1) | EP2464469A2 (de) |
JP (1) | JP2013501625A (de) |
KR (1) | KR20120041241A (de) |
CN (1) | CN102574174A (de) |
DE (1) | DE102009037278A1 (de) |
RU (1) | RU2012108837A (de) |
TW (1) | TW201105438A (de) |
WO (1) | WO2011018217A2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT512399B1 (de) | 2012-09-10 | 2013-08-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum Herstellen eines mikrolegierten Röhrenstahls in einer Gieß-Walz-Verbundanlage und mikrolegierter Röhrenstahl |
CN103433298B (zh) * | 2013-08-15 | 2016-01-27 | 柳州钢铁股份有限公司 | 薄规格轧制集装箱板尾部控制方法 |
DE102014108823B9 (de) | 2014-06-24 | 2016-10-06 | Steinhoff Gmbh & Cie. Ohg | Walze und Verfahren zum Herstellen einer Walze zum Warm- oder Kaltwalzen von Metallflachprodukten |
ES2873299T3 (es) | 2015-09-08 | 2021-11-03 | Deutsche Edelstahlwerke Specialty Steel Gmbh & Co Kg | Procedimiento para fabricar un componente con una sección de núcleo consistente en acero |
WO2017140891A1 (de) | 2016-02-17 | 2017-08-24 | Sms Group Gmbh | Endloswalzen in einer mehr-strang-csp-anlage |
DE102016216727A1 (de) | 2016-09-05 | 2018-03-08 | Sms Group Gmbh | Im Endlosbetrieb betreibbare Produktionsanlage und Verfahren zum Betrieb der Produktionsanlage im Störfall |
US11000888B2 (en) * | 2016-11-10 | 2021-05-11 | Sms Group Gmbh | Method for producing a metal strip in a cast-rolling installation |
DE102017213986A1 (de) | 2017-08-10 | 2019-02-14 | Sms Group Gmbh | Vorrichtung und Verfahren zum Reibschweißen warmer metallischer Produkte |
AT522073B1 (de) * | 2019-05-16 | 2020-08-15 | Primetals Technologies Austria GmbH | Warmwalzen mit flexibler Konfiguration der Walzgerüste |
IT202000020434A1 (it) * | 2020-08-26 | 2022-02-26 | Danieli Off Mecc | Processo e apparato per produrre prodotti siderurgici, in particolare di tipo merchant, in particolare in modalita’ endless |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0286862A1 (de) | 1987-04-13 | 1988-10-19 | Thyssen Stahl Aktiengesellschaft | Verfahren zum Herstellen eines Stahlbandes |
EP0889762B1 (de) | 1996-03-28 | 1999-10-27 | MANNESMANN Aktiengesellschaft | Verfahren zur herstellung von warmgewalztem stahlband |
EP0415987B2 (de) | 1988-05-26 | 1999-11-24 | MANNESMANN Aktiengesellschaft | Verfahren zur kontinuierlichen herstellung von bandstahl oder stahlblech aus nach dem bogenstranggiessverfahren hergestellten flachprodukten |
EP0771596B1 (de) | 1995-11-03 | 2000-07-26 | SMS Demag AG | Produktionsanlage zum kontinuierlichen- oder diskontinuierlichen Auswalzen von Warmband |
EP1365869B1 (de) | 2001-01-23 | 2004-10-06 | SMS Demag Aktiengesellschaft | Walzgerüst zur herstellung planer walzbänder mit gewünschter bandprofilüberhöhung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11129001A (ja) * | 1997-10-28 | 1999-05-18 | Nippon Steel Corp | タイトスケール鋼板の製造方法 |
DE10047044A1 (de) * | 2000-09-22 | 2002-04-25 | Sms Demag Ag | Verfahren und Anlagen zum Herstellen von Bändern und Blechen aus Stahl |
JP3743793B2 (ja) * | 2002-10-28 | 2006-02-08 | 日鉄ハイパーメタル株式会社 | 熱間圧延用複合ロール及びその製造方法並びにそれを用いた熱間圧延方法 |
JP2007175736A (ja) * | 2005-12-28 | 2007-07-12 | Hitachi Metals Ltd | 圧延用複合ロールおよびその製造方法 |
-
2009
- 2009-08-12 DE DE102009037278A patent/DE102009037278A1/de not_active Withdrawn
-
2010
- 2010-08-11 JP JP2012524144A patent/JP2013501625A/ja not_active Withdrawn
- 2010-08-11 RU RU2012108837/02A patent/RU2012108837A/ru unknown
- 2010-08-11 CN CN2010800468628A patent/CN102574174A/zh active Pending
- 2010-08-11 EP EP10747585A patent/EP2464469A2/de not_active Withdrawn
- 2010-08-11 KR KR1020127005638A patent/KR20120041241A/ko not_active Application Discontinuation
- 2010-08-11 WO PCT/EP2010/004913 patent/WO2011018217A2/de active Application Filing
- 2010-08-11 US US13/388,410 patent/US20120175076A1/en not_active Abandoned
- 2010-08-12 TW TW099126841A patent/TW201105438A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0286862A1 (de) | 1987-04-13 | 1988-10-19 | Thyssen Stahl Aktiengesellschaft | Verfahren zum Herstellen eines Stahlbandes |
EP0415987B2 (de) | 1988-05-26 | 1999-11-24 | MANNESMANN Aktiengesellschaft | Verfahren zur kontinuierlichen herstellung von bandstahl oder stahlblech aus nach dem bogenstranggiessverfahren hergestellten flachprodukten |
EP0771596B1 (de) | 1995-11-03 | 2000-07-26 | SMS Demag AG | Produktionsanlage zum kontinuierlichen- oder diskontinuierlichen Auswalzen von Warmband |
EP0889762B1 (de) | 1996-03-28 | 1999-10-27 | MANNESMANN Aktiengesellschaft | Verfahren zur herstellung von warmgewalztem stahlband |
EP1365869B1 (de) | 2001-01-23 | 2004-10-06 | SMS Demag Aktiengesellschaft | Walzgerüst zur herstellung planer walzbänder mit gewünschter bandprofilüberhöhung |
Non-Patent Citations (2)
Title |
---|
CH. WILLEMS ET AL.: "PM-HIP-Lösungen für Werkzeuge und Formen", STAHL, 1998, pages 38 - 40 |
M. ANDERSSON ET AL.: "Introduction of enhanced indefinite chill and high speed steel rolls in European hot strip mills", IRONMAKING AND STEELMAKING, vol. 31, no. 5, 2004, pages 383 FF |
Also Published As
Publication number | Publication date |
---|---|
EP2464469A2 (de) | 2012-06-20 |
WO2011018217A3 (de) | 2011-04-07 |
US20120175076A1 (en) | 2012-07-12 |
TW201105438A (en) | 2011-02-16 |
CN102574174A (zh) | 2012-07-11 |
JP2013501625A (ja) | 2013-01-17 |
DE102009037278A1 (de) | 2011-02-17 |
KR20120041241A (ko) | 2012-04-30 |
RU2012108837A (ru) | 2013-09-20 |
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