WO2018082943A1 - Procédé et installation de production d'une bande métallique - Google Patents
Procédé et installation de production d'une bande métallique Download PDFInfo
- Publication number
- WO2018082943A1 WO2018082943A1 PCT/EP2017/076887 EP2017076887W WO2018082943A1 WO 2018082943 A1 WO2018082943 A1 WO 2018082943A1 EP 2017076887 W EP2017076887 W EP 2017076887W WO 2018082943 A1 WO2018082943 A1 WO 2018082943A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- driver
- strip
- bending
- conveying direction
- tensile stress
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/04—Flatness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/02—Tension
- B21B2265/08—Back or outlet tension
Definitions
- the invention relates to a method for producing a metallic strip, wherein the strip is rolled in a rolling mill, wherein the strip is subjected to a bending straightening process in a bending straightener at a location downstream of the mill in the conveying direction and wherein the strip is at a location downstream of the bending straightener in the conveying direction is reeled on a reel. Furthermore, the invention relates to a system for producing a metallic strip.
- the invention is therefore based on the object of providing a method and a system with which it is possible to increase the degree of flatness of the strip.
- the solution to this problem by the invention is characterized in that the strip is held at least temporarily under a first tensile stress between the rolling mill and the bending stripper, that the strip is held in the conveying direction behind the bending stripper at least temporarily under a second tensile stress and that the Band is held at least temporarily under a third tensile stress in the region of the bending straightener, wherein the third tensile stress is greater than the first tensile stress and the second tensile stress.
- the first tensile stress and the second tensile stress are preferably between 5 and 25 N / mm 2 .
- the third tensile stress is preferably between 30 and 80 N / mm 2 , more preferably between 40 and 60 N / mm 2 . Excluded from said tension are the head and the end of the band.
- the train level on the transport route before the bending straightener section and the transport route after the bending straightener section may be different.
- the mean tension level within the drafting straightener section is preferably determined as a function of the strip material, the strip temperature within the straightening section and the strip thickness, and is preferably set and controlled using a process model.
- the train level in the adjacent transport routes also defines a process model.
- the train levels on the long transport route between the last active rolling stand and the first driver of the bending jig and the transport distance from the second driver of the bending jig and the reel driver or the reel is thus lower than the Switzerlandmony within the Bending trek judge distance. Accordingly, the trains are decoupled from the neighboring routes in the area of the bending stretcher route.
- the tension in the belt is preferably influenced, controlled or regulated by a first driver and a second driver, wherein the first driver is arranged in the conveying direction before the bending straightener and the second driver in the conveying direction behind the bending straightener or the two drivers the extension of the bending straightener in the conveying direction limit (in the latter case, the two drivers are thus part of the bending straightener).
- the different train levels are thus adjusted by the drivers in front of and behind the bending straightener.
- a scissors driver or a reel driver instead of the second driver behind the Biegestreckrichter can also take over their task, a scissors driver or a reel driver. In this case, the increased third tensile stress is built up in the area of the bending straightener between the first driver and a reel driver.
- the distance a then applies between the first driver and the reel driver.
- the second driver is then opened or not installed.
- the second tension is then only between reel driver and reel.
- At least one further driver eg a scissors driver
- the strip is preferably subjected to cooling in a cooling section between the rolling mill and the bending straightener.
- cooling in the conveying direction behind the bending straightener no longer takes place.
- the advantage of this type of cooling of the belt is that in this way the cooling section no longer influences the flatness of the belt.
- the strip preferably has a temperature in its bending straightening process which is between 20 ° C and 750 ° C, more preferably between 200 ° C and 600 ° C. With the method mentioned, it is particularly advantageous to produce a hot strip having a thickness of between 0.5 mm and 2.5 mm.
- the plant for producing a metallic strip comprises a rolling mill for rolling the strip, a rolling mill downstream of the rolling mill in the conveying direction of the strip and at least one downstream of the bending straightener in the conveying direction and provides according to the invention that the bending straightener arranged in the conveying direction at the front first driver and a in the conveying direction arranged behind the second driver, wherein the two drivers limit the extension of the bending straightener and wherein the distance in the conveying direction between the first driver and the second driver is at most 20 m. Preferably, the distance is at most 5 m. This minimizes the cycle time through the bending straightener and the associated constriction of the band due to the train.
- a cooling section is preferably arranged; behind the bending straightener preferably no cooling track follows.
- the bending straightener has a number of rollers for introducing a bending moment into the belt, wherein the diameter of the rollers is preferably at least 50 mm, particularly preferably at least 100 mm.
- the bending straightener section comprises a bending straightener consisting of a number of rollers (for example 5 rollers) and / or a back bending unit consisting of further rollers (for example 3 rollers).
- the driver may be in the classic design of successive two roles or be designed with an offset arrangement of the rollers to produce a wrap angle and optionally additional torque transmission.
- the drafting strip rolls preferably have internal cooling and / or are externally cooled with stripper plates to shield the water from the strip to allow the strip to cool Reel temperature is not adversely affected.
- the strip cooling in the bending straightener section is further taken into account and taken into account when determining the target strip temperature behind the cooling section, so that the desired coil temperature is generated.
- the invention thus relates in particular to a hot bending stripper behind a hot strip mill.
- the proposed solution thus provides an optimization of the Biegestreckrichter- arrangement and the Switzerlandverotti ready, resulting in the consequence to an improved degree of planarity of the produced strip.
- a good flatness improvement by means of a bending straightening process results for a given strip material at high strip tension, high strip temperatures and small bending radii of the strip, d. H. with small straightening roll diameters.
- Too small roll diameter are disadvantageous in terms of maintenance, service life or role wear. Too high a draft and / or too high strip temperatures will result in large width constrictions on the long stretch between the last mill stand of the hot strip mill and the reel. The width constriction due to strip tension is also dependent on the flatness state itself and thus difficult to determine. Furthermore, the cooling section also influences the flatness condition of the belt.
- Fig. 1 shows a schematic side view of a system for producing a belt
- Fig. 2 shows the course of the tensile stress in the band over the extension in the longitudinal direction of the plant.
- FIG. 1 a plant for the production of a steel strip 1 is shown, of a rolling mill 2, only the last rolling mill is indicated, from which the belt 1 in the conveying direction F in the direction of a reel 4 expires (provided here are two reel 4). Between the rolling mill 2 and the reel 4, a bending straightener 3 is arranged, in which the band is directed by a bending straightening process.
- the bending straightener 3 is limited by a first driver 5 and a second driver 6 in its extension in the conveying direction F, wherein there is a distance a between the two drivers 5, 6.
- the bending straightener 3 has a number of rollers 8, which are designed to apply corresponding bending stress on the band 1 in a conventional manner.
- a cooling section 7, which is arranged between the rolling mill 2 and the bending straightener 3 and with which the belt 1 can be cooled. Furthermore, some components are indicated in FIG. 1, which are relevant for carrying out the production process of the strip 1, namely a flatness measuring device 9, a temperature measuring device 10, a temperature measuring device 11, a pair of scissors 12 and a reel temperature measuring device 13.
- the promotion of the belt 1 between the rolling mill 2 and the reel 4 results from the interaction of the last mill stand of the rolling mill, the first and the second driver 5, 6 and in the embodiment by a reel driver 14.
- the tension in the band can be influenced.
- first tensile stress ⁇ which is preferably in a range between 5 and 25 N / mm 2 .
- a second tensile stress ⁇ 2 which is also preferably in a range between 5 and 25 N / mm 2 .
- the two tensile stress ⁇ and ⁇ 2 must by no means be the same.
- the tensile stress in the region of the bending straightener 3 is at a higher level.
- the present here third tension ⁇ 3 is in a preferred range between 40 and 60 N / mm 2. It is advantageously provided that the distance a is relatively short and preferably extends only over about 5 m. As a result, the throughput time is low by the bending jig 3, resulting in only a small constriction of the band due to the train.
- the scissors 12 is used in continuous rolling.
- the bending straightening process is thereby significantly improved. This applies in particular if the process is operated with further parameters, as explained above.
- the temperature control which is preferably chosen so that the band 1 in the region of the bending jig 3 has a temperature between 200 ° C and 600 ° C.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
L'invention concerne un procédé pour la fabrication d'une bande métallique (1), la bande (1) étant laminée dans un laminoir (2), la bande (1) étant soumise à un procédé de cintrage-étirage-dressage dans un dispositif (3) de cintrage-étirage-dressage en un emplacement disposé en aval du laminoir (2) dans le sens du transport (F) et la bande étant bobinée sur une bobine (4) en un emplacement disposé en aval du dispositif (3) de cintrage-étirage-dressage dans le sens du transport (F). Pour augmenter le degré de planéité de la bande, selon l'invention, la bande (1) est maintenue au moins temporairement sous une première contrainte de traction (σ1) entre le laminoir (2) et le dispositif (3) de cintrage-étirage-dressage, la bande (1) est maintenue au moins temporairement sous une deuxième contrainte de traction (σ2) en aval du dispositif (3) de cintrage-étirage-dressage dans le sens du transport (F) et la bande (1) est maintenue au moins temporairement sous une troisième contrainte de traction (σ3) au niveau du dispositif (3) de cintrage-étirage-dressage, la troisième contrainte de traction (σ3) étant supérieure à la première contrainte de traction (σ1) et à la deuxième contrainte de traction (σ2). L'invention concerne en outre une installation pour la fabrication d'une bande métallique.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019522852A JP6796715B2 (ja) | 2016-11-07 | 2017-10-20 | 金属のストリップを製造するための方法および設備 |
EP17787184.5A EP3535071B1 (fr) | 2016-11-07 | 2017-10-20 | Procédé et installation de production d'une bande métallique |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016221712 | 2016-11-07 | ||
DE102016221712.7 | 2016-11-07 | ||
DE102017202909.9 | 2017-02-23 | ||
DE102017202909.9A DE102017202909A1 (de) | 2016-11-07 | 2017-02-23 | Verfahren und Anlage zur Herstellung eines metallischen Bandes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018082943A1 true WO2018082943A1 (fr) | 2018-05-11 |
Family
ID=62002860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/076887 WO2018082943A1 (fr) | 2016-11-07 | 2017-10-20 | Procédé et installation de production d'une bande métallique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3535071B1 (fr) |
JP (1) | JP6796715B2 (fr) |
DE (1) | DE102017202909A1 (fr) |
WO (1) | WO2018082943A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111974801A (zh) * | 2020-08-13 | 2020-11-24 | 无锡市城南带钢有限公司 | 热轧带钢的生产方法 |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2537188A1 (de) | 1975-08-21 | 1977-02-24 | Bwg Bergwerk Walzwerk | Verfahren und warmbandstrasse zur verbesserung der qualitaetseigenschaften von warmband |
US4316376A (en) | 1980-05-15 | 1982-02-23 | Sumitomo Metal Industries, Ltd. | Method for preventing wandering of strip under roller leveling in hot rolling line |
US4539830A (en) | 1982-09-15 | 1985-09-10 | Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh | System for making thin metal strip |
GB2163689A (en) | 1984-08-31 | 1986-03-05 | Davy Mckee | Hot rolling metal strip |
EP0498038A2 (fr) * | 1991-02-08 | 1992-08-12 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Installation de dressage pour les bandes finies, en particulier pour les bandes métalliques |
EP1029819A2 (fr) * | 1999-02-15 | 2000-08-23 | Sumitomo Heavy Industries, Ltd. | Méthode et dispositif pour niveler une bande |
DE19953915A1 (de) | 1999-11-10 | 2001-07-05 | Thyssenkrupp Stahl Ag | Verfahren und Vorrichtung zum Bearbeiten eines Warmbandes auf dem Auslaufrollgang einer Warmbandstraße |
EP0906797B1 (fr) | 1997-09-30 | 2004-04-07 | SMS Demag AG | Procédé et installation de dressage d'une bande métallique dans une installation de laminage à chaud |
EP1230993B1 (fr) | 2001-02-07 | 2007-12-19 | SMS Demag AG | Dispositif pour améliorer la planéité de bandes laminées, en particulier de bandes d'acier |
DE102005060046B4 (de) | 2005-12-15 | 2008-08-14 | Siemens Ag | Walzstrasse mit mindestens zwei Bandbeeinflussungseinrichtungen und Verfahren zum Betrieb einer solchen Walzstrasse |
EP2038076B1 (fr) | 2006-06-28 | 2010-03-31 | SMS Siemag AG | Procédé et dispositif pour enrouler une bande métallique |
DE102012020444A1 (de) * | 2012-10-18 | 2014-04-24 | Vdeh-Betriebsforschungsinstitut Gmbh | Zugfestigkeits-Softsensor für Formschlussbiegemaschinen und Streckbiegerichtanlagen |
DE102013214344A1 (de) | 2013-07-23 | 2015-01-29 | Sms Siemag Ag | Kühlstrecke und Verfahren zum Kühlen von warmgewalztem Metallband |
EP3061535A1 (fr) | 2015-02-27 | 2016-08-31 | Primetals Technologies Austria GmbH | Dispositif de bobineuse doté d'un refroidissement asymétrique de la bande bobinée |
-
2017
- 2017-02-23 DE DE102017202909.9A patent/DE102017202909A1/de not_active Withdrawn
- 2017-10-20 EP EP17787184.5A patent/EP3535071B1/fr active Active
- 2017-10-20 JP JP2019522852A patent/JP6796715B2/ja active Active
- 2017-10-20 WO PCT/EP2017/076887 patent/WO2018082943A1/fr unknown
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2537188A1 (de) | 1975-08-21 | 1977-02-24 | Bwg Bergwerk Walzwerk | Verfahren und warmbandstrasse zur verbesserung der qualitaetseigenschaften von warmband |
US4316376A (en) | 1980-05-15 | 1982-02-23 | Sumitomo Metal Industries, Ltd. | Method for preventing wandering of strip under roller leveling in hot rolling line |
US4539830A (en) | 1982-09-15 | 1985-09-10 | Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh | System for making thin metal strip |
GB2163689A (en) | 1984-08-31 | 1986-03-05 | Davy Mckee | Hot rolling metal strip |
EP0498038A2 (fr) * | 1991-02-08 | 1992-08-12 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Installation de dressage pour les bandes finies, en particulier pour les bandes métalliques |
EP0906797B1 (fr) | 1997-09-30 | 2004-04-07 | SMS Demag AG | Procédé et installation de dressage d'une bande métallique dans une installation de laminage à chaud |
EP1029819A2 (fr) * | 1999-02-15 | 2000-08-23 | Sumitomo Heavy Industries, Ltd. | Méthode et dispositif pour niveler une bande |
DE19953915A1 (de) | 1999-11-10 | 2001-07-05 | Thyssenkrupp Stahl Ag | Verfahren und Vorrichtung zum Bearbeiten eines Warmbandes auf dem Auslaufrollgang einer Warmbandstraße |
EP1230993B1 (fr) | 2001-02-07 | 2007-12-19 | SMS Demag AG | Dispositif pour améliorer la planéité de bandes laminées, en particulier de bandes d'acier |
DE102005060046B4 (de) | 2005-12-15 | 2008-08-14 | Siemens Ag | Walzstrasse mit mindestens zwei Bandbeeinflussungseinrichtungen und Verfahren zum Betrieb einer solchen Walzstrasse |
EP2038076B1 (fr) | 2006-06-28 | 2010-03-31 | SMS Siemag AG | Procédé et dispositif pour enrouler une bande métallique |
DE102012020444A1 (de) * | 2012-10-18 | 2014-04-24 | Vdeh-Betriebsforschungsinstitut Gmbh | Zugfestigkeits-Softsensor für Formschlussbiegemaschinen und Streckbiegerichtanlagen |
DE102013214344A1 (de) | 2013-07-23 | 2015-01-29 | Sms Siemag Ag | Kühlstrecke und Verfahren zum Kühlen von warmgewalztem Metallband |
EP3061535A1 (fr) | 2015-02-27 | 2016-08-31 | Primetals Technologies Austria GmbH | Dispositif de bobineuse doté d'un refroidissement asymétrique de la bande bobinée |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111974801A (zh) * | 2020-08-13 | 2020-11-24 | 无锡市城南带钢有限公司 | 热轧带钢的生产方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3535071A1 (fr) | 2019-09-11 |
JP6796715B2 (ja) | 2020-12-09 |
DE102017202909A1 (de) | 2018-05-09 |
EP3535071B1 (fr) | 2020-04-15 |
JP2020500713A (ja) | 2020-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4402402B4 (de) | Verfahren zur Herstellung von warmgewalztem Stahlband aus stranggegossenem Vormaterial und Anlage zur Durchführung des Verfahrens | |
DE3234160C2 (de) | Verfahren und Warmbandstraße zum Herstellen von dünnem Metallband, insbesondere Metall-Breitband, aus Warmband | |
DE1946025A1 (de) | Einrichtung zum Abschrecken oder Abkuehlen von Kuehlgut,insbesondere von laenglichen Flachstahlteilen u.dgl. | |
EP1955787B1 (fr) | Procédé et dispositif destinés à l'étirement de bandes de métal | |
EP1456421A1 (fr) | Procede et dispositif pour dresser et refroidir de maniere regulee un feuillard metallique large, notamment un feuillard d'acier ou une tole, sortant d'un laminoir a chaud pour feuillards | |
DE69501054T2 (de) | Vorrichtung und Verfahren zur Herstellung von zweimal gewalztem Stahlband | |
DE102011006357A1 (de) | Walzstraße zum Herstellen eines Metallbandes und Verfahren zur Herstellung einer Walzstraße | |
EP1812609A1 (fr) | Procede et dispositif de façonnage a proximite de la cale-etalon de produits de depart en forme de fils et de barres et profile plat ainsi obtenu | |
EP3535071B1 (fr) | Procédé et installation de production d'une bande métallique | |
EP1132161B1 (fr) | Procédé pour la coulée continue de brames, en particulier de brames minces | |
EP3441157B1 (fr) | Procédé et dispositif pour la coulée continue d'un produit métallique | |
DE102013212951A1 (de) | Gießwalzanlage und Verfahren zum Herstellen von metallischem Walzgut | |
DE10261632B4 (de) | Verfahren und Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen Rohren | |
WO2004065030A1 (fr) | Procede et dispositif pour produire des brames d'acier par coulee continue | |
EP2379244B1 (fr) | Procédé et dispositif de décalaminage d'une bande de métal | |
EP3206808B1 (fr) | Installation et procédé de fabrication de tôles fortes | |
EP1525060B1 (fr) | Procede et dispositif de fabrication en continu de bandes metalliques | |
EP3941655B1 (fr) | Installation et procédé pour fabriquer un feuillard à chaud métallique | |
WO2011095265A2 (fr) | Train de laminage à chaud pour le laminage d'un feuillard à chaud, procédé pour faire fonctionner un train de laminage à chaud pour le laminage d'un feuillard à chaud, ainsi que dispositif de commande et/ou de régulation | |
DE3324548A1 (de) | Verfahren zum kuehlen von bandstahl mit hilfe von kuehlrollen | |
DE102013214940A1 (de) | Gießwalzanlage und Verfahren zum Herstellen von Brammen | |
EP0925850A2 (fr) | Procédé de laminage pour une bande métallique | |
DE10025080A1 (de) | Verfahren zum Herstellen von Metallband | |
DE102021207947A1 (de) | Verfahren und Vorrichtung zum Herstellen eines metallischen Bandes | |
AT242311B (de) | Stranggießanlage mit gekrümmter Führung des Stranges nach der Kokille |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17787184 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2019522852 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2017787184 Country of ref document: EP Effective date: 20190607 |