EP0201744A2 - Method for hot-rolling slabs into wide strips - Google Patents
Method for hot-rolling slabs into wide strips Download PDFInfo
- Publication number
- EP0201744A2 EP0201744A2 EP86105241A EP86105241A EP0201744A2 EP 0201744 A2 EP0201744 A2 EP 0201744A2 EP 86105241 A EP86105241 A EP 86105241A EP 86105241 A EP86105241 A EP 86105241A EP 0201744 A2 EP0201744 A2 EP 0201744A2
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- EP
- European Patent Office
- Prior art keywords
- strip
- lengths
- hot
- rolling
- finishing train
- 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.)
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Classifications
-
- 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
- B21B15/0085—Joining ends of material to continuous strip, bar or sheet
-
- 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
- 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
- B21B15/0007—Cutting or shearing the product
-
- 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
Definitions
- the invention relates to a method for rolling from pre-strip to hot wide strip, with pre-strip lengths being rolled successively in a finishing train.
- Hot strip mills of conventional design consist of single or multi-stand roughing streets and multi-stand finishing lines.
- the roughing mill produces a hot strip with a thickness in the range of 25 to 60 mm, which can run freely behind the roughing mill before it is introduced into the finishing mill.
- the belt is scooped before entering the finishing train. At this point it has already left the Vor No.
- the finishing train When tapping into the finishing train, the finishing train is at a so-called infeed rate, which for small finished thicknesses of 2-3 mm is of the order of 1 m / s.
- This speed results as a limitation from the exit roller table behind the finishing train, which does not allow a higher speed of approx. 11 m / s for the start of the belt. If the speed were to be increased, the beginning of the belt would be thrown up by bumping against the roller table rollers and would be bent between the roller table rollers if it fell. This results in known disruptive effects behind the finishing train.
- the belt runs at a speed of 11 m / s constantly or with little acceleration over the roller table and is taken up in the reel system. After grasping the reel system, the speed limit no longer applies. The road can be accelerated.
- the finish rolling temperature in the finishing stand increases. This increase in finish roll temperature is undesirable.
- the increase is compensated for by a steady drop in temperature in the hot strip with increasing rolling time. If the acceleration is selected correctly, the temperature rise due to the acceleration can compensate for the temperature drop due to the increasing rolling time. The acceleration is therefore called temperature acceleration.
- the production of the finishing train is limited for a given ring weight by the maximum possible threading speed of e.g. 10 to 11 m / s and the maximum possible temperature acceleration. Production can be increased if the acceleration is increased beyond the temperature acceleration. This measure is known and is practiced, but leads to the need for additional cooling in the finishing train.
- the object of the invention is to provide a method and a system for rolling from pre-strip to hot wide strip with higher dimensional accuracy and more uniform structure, the productivity being increased again and the power requirement being reduced.
- this is achieved by successively connecting pre-strip lengths fed to the finishing train to form an endless strip, which is finished-rolled at a constant speed, and then the connection points are separated from the finished hot-rolled strip.
- the successive pre-strip lengths can be welded on the end face entirely or over partial areas.
- the successive pre-strip lengths can be connected in a form-fitting manner, the positive-locking contour advantageously being produced by notching end faces of the pre-strip lengths assigned to one another.
- a hot strip production line is preceded by a strip length connecting device which is movable in the conveying direction and a flying cross-cutting unit, a switch and a plurality of strip reels are arranged downstream.
- pre-strip lengths produced by continuous casting can be used in the method according to the invention.
- Strip lengths 1a, 1b coming from a roughing train or directly from a continuous caster are kept in a furnace 2 at the rolling temperature and successively conveyed out on a roller table 3.
- the pre-strip lengths 1a, 1b pass through a descaler 4 and are then fed by a driver 5 to a device for connecting their associated ends.
- This connecting device 6 is movable along a guide 7 parallel to the roller table 3 in parallel with the lengths of the sliver and back.
- the pre-strip lengths can be connected either by butt welding according to FIG. 3 or by notching and latching the ends according to FIG. 4.
- the moving connecting device 6 consists of a cutting device 8 and a butt welding device 9.
- the ends of the pre-strip lengths 1a, 1b are first tapered in width and then pressed together and butt-welded according to FIG. 3.
- the connecting device consists of the cutting device 8 and a latching device 10.
- First, complementary form-fitting contours 11 are produced at the assigned ends of the pre-strip lengths 1a, 1b, which are brought into engagement in the latching device by sliding one over the other.
- a hot wide strip finishing train consisting of seven four-high rolling stands 12.
- Spray cooling devices 13 are arranged between the four-high rolling stands 12 in order to reduce excessively high final rolling temperatures.
- the rolled hot wide strip 1c is cooled to reel temperature in a laminar cooling section 14.
- a flying cross-cut shear 15 is arranged behind the laminar cooling section 14, by means of which the welding or interlocking connection point S or E is separated from the hot wide strip 1c.
- the hot wide strip 1c is optionally guided to reels 17 and 19 via deflection and drive rollers 16, 18 serving as switches.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
@ Bei einem Verfahren zum Walzen von Vorband zu Warmbreitband werden Vorbandlängen in einer Fertigstraße aufeinanderfolgend gewalzt.@ In a method for rolling from pre-strip to hot wide strip, pre-strip lengths are rolled in succession in a finishing train.
Zur Schaffung eines Verfahrens und einer Anlage zum Walzen von Vorband zu Warmbreitband mit höherer Maßhaltigkeit und gleichförmigerem Gefüge bei höherer Produktivität und geringerem Leistungsbedarf werden aufeinanderfolgend der Fertigstraße (12) zugeführte Vorbandlängen (1a, 1b) zu einem Endlosband verbunden, das mit konstanter Geschwindigkeit fertiggewalzt wird. Aus dem fertigen Warmbreitband (1c) werden vordem Aufhaspeln die Verbindungsstellen herausgetrennt.
Description
Die Erfindung betrifft ein Verfahren zum Walzen von Vorband zu Warmbreitband, wobei Vorbandlängen in einer Fertigstraße aufeinanderfolgend gewalzt werden.The invention relates to a method for rolling from pre-strip to hot wide strip, with pre-strip lengths being rolled successively in a finishing train.
Warmbreitbandstraßen konventioneller Bauart bestehen aus ein-oder mehrgerüstigen Vorstraßen und mehrgerüstigen Fertigstraßen.Hot strip mills of conventional design consist of single or multi-stand roughing streets and multi-stand finishing lines.
Die Vorstraße erzeugt ein Warmband mit einer Dicke im Bereich von 25 bis 60 mm, welches hinter der Vorstraße frei auslaufen kann, bevor es in die Fertigstraße eingeführt wird. Das Band wird vor dem Eintritt in die Fertigstraße geschopft. Zu diesem Zeitpunkt hat es bereits die Vorstraße verlassen.The roughing mill produces a hot strip with a thickness in the range of 25 to 60 mm, which can run freely behind the roughing mill before it is introduced into the finishing mill. The belt is scooped before entering the finishing train. At this point it has already left the Vorstraße.
Bei Anstich in die Fertigstraße steht die Fertigstraße auf einer sogenannten Einlaufgeschindigkeit, die für geringe Fertigdicken von 2-3 mm in der Größenordnung von 1m/s liegt. Diese Geschwindigkeit ergibt sich als Begrenzung aus dem Auslaufrollgang hinter der Fertigstraße, der eine höhere Geschwindigkeit von ca. 11 m/s für den Bandanfang nicht zuläßt. Würde man die Geschwindigkeit erhöhen, so würde der Bandanfang durch Anstoßen an die Rollgangsrollen hochgeschleudert und beim Herabfallen zwischen die Rollgangsrollen abgekantet werden. Hieraus ergeben sich bekannte Störeffekte hinter der Fertigstraße.When tapping into the finishing train, the finishing train is at a so-called infeed rate, which for small finished thicknesses of 2-3 mm is of the order of 1 m / s. This speed results as a limitation from the exit roller table behind the finishing train, which does not allow a higher speed of approx. 11 m / s for the start of the belt. If the speed were to be increased, the beginning of the belt would be thrown up by bumping against the roller table rollers and would be bent between the roller table rollers if it fell. This results in known disruptive effects behind the finishing train.
Nach dem Austritt aus dem Fertiggerüst läuft das Band somit mit einer Geschwindigkeit von 11 m/s konstant oder mit geringer Beschleunigung über den Rollgang und wird in der Haspelanlage gefaßt. Nach dem Fassen der Haspelanlage entfällt die Geschwindigkeitsbegrenzung. Die Straße kann beschleunigt werden.After leaving the finishing stand, the belt runs at a speed of 11 m / s constantly or with little acceleration over the roller table and is taken up in the reel system. After grasping the reel system, the speed limit no longer applies. The road can be accelerated.
Mit Beschleunigung der Fertigstraße steigt die Endwalztemperatur im Fertiggerüst. Dieser Anstieg der Endwalztemperatur ist unerwünscht. In der konventionellen Bauart wird jedoch der Anstieg kompensiert durch einen stetigen Temperaturabfall im Warmband mit zunehmender Walzzeit. Bei richtiger Wahl der Beschleunigung kann der Temperaturanstieg infolge der Beschleunigung gerade den Temperaturabfall infolge zunehmender Walzzeit kompensieren. Die Beschleunigung wird demzufolge Temperaturbeschleunigung genannt.As the finishing train accelerates, the finish rolling temperature in the finishing stand increases. This increase in finish roll temperature is undesirable. In the conventional design, however, the increase is compensated for by a steady drop in temperature in the hot strip with increasing rolling time. If the acceleration is selected correctly, the temperature rise due to the acceleration can compensate for the temperature drop due to the increasing rolling time. The acceleration is therefore called temperature acceleration.
Die Produktion der Fertigstraße wird für ein gegebenes Ringgewicht begrenzt durch die maximal mögliche Einfädelgeschwindigkeit von z.B. 10 bis 11 m/s und die maximal mögliche Temperaturbeschleunigung. Eine Steigerung der Produktion ist möglich, wenn die Beschleunigung über die Temperaturbeschleunigung hinaus erhöht wird. Diese Maßnahme ist bekannt und wird praktiziert, führt jedoch zu dem Erfordernis zusätzlicher Kühlung in der Fertigstraße.The production of the finishing train is limited for a given ring weight by the maximum possible threading speed of e.g. 10 to 11 m / s and the maximum possible temperature acceleration. Production can be increased if the acceleration is increased beyond the temperature acceleration. This measure is known and is practiced, but leads to the need for additional cooling in the finishing train.
Modernere Vorstraßenkonzepte sehen bereits Möglichkeiten für die Realisierung einer konstanten Einlauftemperatur für die Fertigstraße vor. Hierzu gehören:
- - Coilbox
- - Warmhaltehauben
- - Durchlauföfen
- - Stoßöfen
- - Coil box
- - warming hoods
- - continuous furnaces
- - push furnaces
Doch auch bei dieser Konzeption gilt die Begrenzung der Anstichgeschwindigkeit der Fertigstraße so lange, bis der Bandanfang im Haspel erfaßt ist. Falls bei derartigen Straßen zur Produktionssteigerung mit höherer Geschwindigkeit gefahren werden soll, muß eine unzulässig hohe Endwalztemperatur durch entsprechende Kühlung zwischen den Gerüsten vermieden werden.But even with this concept the limitation of the tapping speed of the finishing train applies until the beginning of the strip is recorded in the reel. If you want to drive at higher speeds on such roads to increase production, an impermissibly high final rolling temperature must be achieved by ent talking cooling between the scaffolding can be avoided.
Mit der Erfindung sollen die vorbeschriebenen Nachteile beseitigt werden. Aufgabe der Erfindung ist die Schaffung eines Verfahrens und einer Anlage zum Walzen von Vorband zu Warmbreitband mit höherer Maßhaltigkeit und gleichförmigerer Gefügeausbildung, Wobei die Produktivität nochmals erhöht und der Leistungsbedarf verringert wird.The disadvantages described above are to be eliminated with the invention. The object of the invention is to provide a method and a system for rolling from pre-strip to hot wide strip with higher dimensional accuracy and more uniform structure, the productivity being increased again and the power requirement being reduced.
Nach der Erfidnung wird dies dadurch erreicht, daß aufeinanderfolgend der Fertigstraße zugeführte Vorbandlängen zu einem Endlosband verbunden werden, das mit konstanter Geschwindigkeit fertiggewalzt wird und anschließend die Verbindungsstellen aus dem fertigen Warmbreitband herausgetrennt werden.According to the invention, this is achieved by successively connecting pre-strip lengths fed to the finishing train to form an endless strip, which is finished-rolled at a constant speed, and then the connection points are separated from the finished hot-rolled strip.
Durch die entstehende Endlosbandlänge entfällt der Nachteil limitierter Geschwindigkeit bei Anstich im letzten Fertiggerüst. Die Straße kann mit einer konstanten höheren Produktionsgeschwindigkeit gefahren werden. Bedingt durch die hierdurch entstehende höhere Umformwärme ist es möglich, die Einlauftemperatur abzusenken auf einen Wert, der in etwa identisch ist mit der Temperatur am Bandende einer konventionellen Anlage. Hieraus ergeben sich insgesamt die folgenden Vorteile:
- - Die konstante höhere Produktionsgeschwindigkeit ermöglicht, bezogen auf eine Grundlänge des Vorbandes, eine geringere Walzzeit und damit höhere Produktion.
- - Die Einlauftemperatur in die Fertigstraße kann deutlich abgesenkt werden.
- - Die Fertigstraße benötigt keine Beschleunigung zur Konstanthaltung der Temperatur.
- - Die konstante Temperatur in jedem Gerüst der Fertigstraße verbessert die Voraussetzungen für eine qualitativ hochwertige Dickenregelung.
- - Eine zeitweilige Kühlung zur Kompensation von Zwischenbeschleunigungen entfällt, wodurch nachteilige Auswirkungen auf die Qualität der Dickenregelung vermieden werden.
- - Die Walzentemperaturen erreichen stationäre Betriebswerte. Hierdurch werden Auswirkungen auf das Bandprofil infolge sich ändernder Temperaturzustände in den Walzen vermieden.
- - Die Gefügeausbildung im fertigen Produkt wird durch die konstante Endwalztemperatur gleichförmiger als bei konventioneller Fahrweise.
- - The constant higher production speed, based on a basic length of the preliminary strip, enables a shorter rolling time and thus higher production.
- - The inlet temperature in the finishing train can be significantly reduced.
- - The finishing train does not need any acceleration to keep the temperature constant.
- - The constant temperature in every stand of the finishing train improves the conditions for high-quality thickness control.
- - Temporary cooling to compensate for intermediate accelerations is omitted, thereby avoiding adverse effects on the quality of the thickness control.
- - The roller temperatures reach steady operating values. This avoids effects on the strip profile due to changing temperature conditions in the rolls.
- - Due to the constant final rolling temperature, the microstructure formation in the finished product is more uniform than with conventional driving.
Die aufeinanderfolgenden Vorbandlängen können stirnseitig ganz oder über Teilbereiche verschweißt werden.The successive pre-strip lengths can be welded on the end face entirely or over partial areas.
Alternativ können die aufeinanderfolgenden Vorbandlängen formschlüssig verbunden werden, wobei die Formschlußkontur vorteilhaft durch Ausklinken einander zugeordneter Stirnseiten der Vorbandlängen erzeugt wird.Alternatively, the successive pre-strip lengths can be connected in a form-fitting manner, the positive-locking contour advantageously being produced by notching end faces of the pre-strip lengths assigned to one another.
Gemäß einem weiteren Merkmal der Erfindung ist einer Warmbreitbandfertigstraße eine in Förderrichtung bewegliche Bandlängenverbindungsvorrichtung vorgeordnet und eine fliegende Querteilanlage, eine Weiche und mehrere Bandhaspeln nachgeordnet.According to a further feature of the invention, a hot strip production line is preceded by a strip length connecting device which is movable in the conveying direction and a flying cross-cutting unit, a switch and a plurality of strip reels are arranged downstream.
Bei dem erfindungsgemäßen Verfahren können vorteilhaft durch Stranggießen erzeugte Vorbandlängen verwendet werden.Advantageously, pre-strip lengths produced by continuous casting can be used in the method according to the invention.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen
- Fig. 1 Schematisch die Seitenansicht einer Warmbreitbandstraße,
- Fig. 2 einen Grundriß zu Fig. 1,
- Fig. 3 eine Schweißverbindung zweier Vorbandlängen und
- Fig. 4 eine Einrastverbindung zweier Vorbandlängen.
- F ig. 1 Schematic the side view of a hot wide strip mill,
- 2 is a plan view of FIG. 1,
- F ig. 3 a welded connection between two lengths of pre-strip and
- Fig. 4 shows a snap connection of two pre-strip lengths.
Von einer Vorstraße oder direkt von einer Stranggießanlage kommende Vorbandlängen 1a, 1b werden in einem Ofen 2 auf Walztemperatur gehalten und aufeinanderfolgend auf einem Rollgang 3 ausgefördert. Die Vorbandlängen 1a, 1b durchlaufen einen Entzunderer 4 und werden anschließend von einem Treiber 5 einer Vorrichtung zum Verbinden ihrer zugeordneten Enden zugeführt. Diese Verbindungsvorrichtung 6 ist entlang einer Führung 7 parallel zum Rollgang 3 gleichlaufend mit den Vorbandlängen und zurück beweglich.
Die Vorbandlängen können entweder gemäß Fig. 3 durch Stumpfschweißen oder gemäß Fig. 4 durch Ausklinken und Einrasten der Enden verbunden werden. Im Falle einer Schweißverbindung besteht die mitlaufende Verbindungsvorrichtung 6 aus Schneidvorrichtung 8 und einer Stumpfschweißvorrichtung 9. Hierbei werden die Enden der Vorbandlängen 1a, 1b zunächst in der Breite verjüngt und danach aufeinandergepreßt und gemäß Fig. 3 stumpfgeschweißt.The pre-strip lengths can be connected either by butt welding according to FIG. 3 or by notching and latching the ends according to FIG. 4. In the case of a welded connection, the moving connecting
Zur Bildung einer Einrastverbindung gemäß Fig. 4 besteht die Verbindungsvorrichtung aus der Schneidvorrichtung 8 und einer Einrasteinrichtung 10. Dabei werden zunächst an den zugeordneten Enden der Vorbandlängen 1a, 1b einander ergänzende Formschlußkonturen 11 hergestellt, die in der Einrastvorrichtung durch übereinanderschieben in Eingriff gebracht werden.4, the connecting device consists of the cutting device 8 and a latching device 10. First, complementary form-fitting
Im Anschluß an die Verbindungsvorrichtung 6 befindet sich eine aus sieben Quartowalzgerüsten 12 bestehende Warmbreitbandfertigstraße. Zwischen den Quartowalzgerüsten 12 sind Sprühkühleinrichtungen 13 zur Reduzierung zu hoher Endwalztemperaturen angeordnet.Following the connecting
Das gewalzte Warmbreitband 1c wird in einer Laminarkühlstrecke 14 auf Haspeltemperatur abgekühlt. Hinter der Laminarkühlstrecke 14 ist eine fliegende Querteilschere 15 angeordnet, durch die die Schweiß- bzw. Formschlußverbindungsstelle S bzw. E aus dem Warmbreitband 1c herausgetrennt wird.The rolled hot
Das Warmbreitband 1c wird über als Weiche dienende Umlenk-und Treibrollen 16, 18 wahlweise zu Haspeln 17 bzw, 19 geleitet.The hot
Claims (6)
dadurch gekennzeichnet,
daß aufeinanderfolgend der Fertigstraße zugeführte Vorbandlangen (1a, 1b) zu einem Endlosband verbunden werden, daß mit konstanter Geschwindigkeit fertiggewalzt wird und daß anschließend die Verbindungsstellen aus dem fertigen Warmbreitband (1c) herausgetrennt werden.1. Method of rolling hot wide strip to pre-strip, where V orbandlängen be rolled sequentially in the finishing train,
characterized,
that pre-strip lengths (1a, 1b) fed in succession to the finishing train are connected to form an endless strip, that finish-rolling is carried out at a constant speed and that the connection points are then separated from the finished hot-rolled strip (1c).
dadurch gekennzeichnet,
daß die aufeinanderfolgenden Vorbandlängen (1a, 1b) stirnseitig ganz oder über Teilbereiche geschweißt werden.2. The method according to claim 1,
characterized,
that the successive pre-strip lengths (1a, 1b) are welded on the end face entirely or over partial areas.
dadurch gekennzeichnet,
daß die aufeinanderfolgenden Vorbandlängen (1a, 1b) formschlüssig verbunden werden.3. The method according to claim 1,
characterized,
that the successive pre-strip lengths (1a, 1b) are positively connected.
dadurch gekennzeichnet,
daß die Formschlußkontur durch Ausklinken einander zugeordneter Stirnseiten der Vorbandlängen erzeugt wird.4. The method according to claims 1 and 3,
characterized,
that the form-locking contour is generated by notching end faces of the pre-strip lengths assigned to one another.
dadurch gekennzeichnet,
daß einer Warmbreitbandstraße (12) ein Treiber (5) und eine in Förderrichtung bewegliche Bandlängenverbindungseinrichtung (8, 9 bzw. 10) vorgeordnet und eine fliegende Querteilanlage (15, eine Weiche (16, 18) und mehrere Bandhaspeln (17, 19) nachgeordnet sind.5. Plant for performing the method according to claim 1,
characterized,
that a hot strip mill (12) is preceded by a driver (5) and a strip length connecting device (8, 9 or 10) movable in the conveying direction and a flying cross-section system (15, a switch (16, 18) and several strip reels (17, 19) are arranged downstream .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3517090 | 1985-05-11 | ||
| DE19853517090 DE3517090A1 (en) | 1985-05-11 | 1985-05-11 | METHOD FOR ROLLING FROM ROOF TO WARM BROADBAND |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0201744A2 true EP0201744A2 (en) | 1986-11-20 |
| EP0201744A3 EP0201744A3 (en) | 1987-11-04 |
Family
ID=6270539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86105241A Withdrawn EP0201744A3 (en) | 1985-05-11 | 1986-04-16 | Method for hot-rolling slabs into wide strips |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4711114A (en) |
| EP (1) | EP0201744A3 (en) |
| JP (1) | JPS61259804A (en) |
| CN (1) | CN86102922A (en) |
| DE (1) | DE3517090A1 (en) |
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| EP0647484A1 (en) * | 1993-10-07 | 1995-04-12 | Kawasaki Steel Corporation | Method of rolling and cutting endless hot-rolled steel strip |
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| CN1080602C (en) * | 1994-03-18 | 2002-03-13 | 株式会社日立制作所 | System and method for manufacturing thin plate by hot working |
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| WO2019030392A1 (en) | 2017-08-10 | 2019-02-14 | Sms Group Gmbh | DEVICE AND METHOD FOR FRICTION WELDING OF WARM METALLIC PRODUCTS |
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| US5037024A (en) * | 1987-07-20 | 1991-08-06 | Fuji Photo Film Co., Ltd. | Method of splicing metal webs |
| DE3824698C2 (en) * | 1987-07-20 | 1999-05-12 | Fuji Photo Film Co Ltd | Method and device for butt-joining metal webs or strips |
| DE69206188T2 (en) * | 1991-04-26 | 1996-03-28 | Hitachi Ltd | Method and device for joining heated tapes. |
| JPH0617133A (en) * | 1992-07-03 | 1994-01-25 | Nippon Steel Corp | Method for producing grain-oriented electrical steel sheet with uniform magnetism using a large weight coil |
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| JPH06299245A (en) * | 1993-04-12 | 1994-10-25 | Nippon Steel Corp | Method for manufacturing unidirectional electrical steel sheet having a uniform high magnetic flux density in the coil longitudinal direction |
| JP3254067B2 (en) † | 1993-05-07 | 2002-02-04 | 川崎製鉄株式会社 | Control method of sheet crown in endless rolling |
| KR100241167B1 (en) * | 1995-04-18 | 2000-03-02 | 에모토 간지 | Hot-rolling method of steel piece joint during continuous hot-rolling |
| IT1288863B1 (en) * | 1996-03-15 | 1998-09-25 | Danieli Off Mecc | CONTINUOUS LAMINATION PROCESS FOR SHEETS AND / OR TAPES AND RELATED CONTINUOUS ROLLING LINE |
| FR2746214B1 (en) * | 1996-03-15 | 1998-04-24 | METHOD AND MACHINE FOR HYBRIDIZATION BY REFUSION | |
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| DE19821301A1 (en) * | 1998-05-13 | 1999-11-18 | Abb Patent Gmbh | Arrangement and method for producing steel strip |
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| JP5817430B2 (en) * | 2011-10-24 | 2015-11-18 | Ｊｆｅスチール株式会社 | Sheet bar joining method |
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| US2214618A (en) * | 1937-08-28 | 1940-09-10 | Westinghouse Electric & Mfg Co | Continuously operating strip mill |
| US2348283A (en) * | 1941-05-09 | 1944-05-09 | Bethlehem Steel Corp | Burr masher |
| US2394466A (en) * | 1943-10-01 | 1946-02-05 | Carnegie Illinois Steel Corp | Metal strip processing apparatus |
| SU75729A1 (en) * | 1948-04-17 | 1948-11-30 | А.С. Гельман | The method of joining the ends of continuously moving sheets during rolling |
| JPS50131650A (en) * | 1974-04-06 | 1975-10-17 | ||
| SU719715A1 (en) * | 1978-02-15 | 1980-03-05 | Институт черной металлургии | Method of endless rolling of strip |
| JPS5522464A (en) * | 1978-08-07 | 1980-02-18 | Hitachi Ltd | Continuous rolling method of slab |
| JPS55112104A (en) * | 1979-02-22 | 1980-08-29 | Nippon Steel Corp | Cold rolling mill |
| JPS5847241B2 (en) * | 1979-08-06 | 1983-10-21 | 新日本製鐵株式会社 | Steel hot rolling equipment row |
| JPS5677008A (en) * | 1979-11-27 | 1981-06-25 | Sumitomo Metal Ind Ltd | Cold rolling method |
| JPS58122109A (en) * | 1982-01-13 | 1983-07-20 | Kawasaki Steel Corp | Method for connecting material to be hot-rolled |
| AT372881B (en) * | 1982-03-05 | 1983-11-25 | Voest Alpine Ag | PLANT FOR THE HOT ROLLING OF TAPE OR TABLED ROLLED GOODS |
| SU1079317A1 (en) * | 1983-01-28 | 1984-03-15 | Липецкий политехнический институт | Method of preparing the strip with welds for rolling |
| KR910001541B1 (en) * | 1983-08-12 | 1991-03-15 | 가부시기가이샤 히다찌세이사꾸쇼 | Apparatus and method of continuously hot-rolling steel pieces |
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1985
- 1985-05-11 DE DE19853517090 patent/DE3517090A1/en not_active Withdrawn
-
1986
- 1986-04-16 EP EP86105241A patent/EP0201744A3/en not_active Withdrawn
- 1986-04-30 CN CN198686102922A patent/CN86102922A/en active Pending
- 1986-05-08 US US06/861,084 patent/US4711114A/en not_active Expired - Fee Related
- 1986-05-08 JP JP61103975A patent/JPS61259804A/en active Pending
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| US5260541A (en) * | 1990-12-10 | 1993-11-09 | Hitachi, Ltd. | Crop shear apparatus and crop shear equipment |
| EP0490333A3 (en) * | 1990-12-10 | 1992-09-30 | Hitachi, Ltd. | Crop shear apparatus and crop shear equipment |
| EP0528385A1 (en) * | 1991-08-16 | 1993-02-24 | Kawasaki Steel Corporation | Method of continuously hot-rolling sheet bars |
| CN1058424C (en) * | 1993-10-07 | 2000-11-15 | 川崎制铁株式会社 | Method for calender rolling and cutting of hot rolled steel belt without connecting seam |
| EP0647484A1 (en) * | 1993-10-07 | 1995-04-12 | Kawasaki Steel Corporation | Method of rolling and cutting endless hot-rolled steel strip |
| KR100231980B1 (en) * | 1993-10-07 | 1999-12-01 | 에모토 간지 | Rolling cutting method of continuous hot rolled steel |
| CN1080602C (en) * | 1994-03-18 | 2002-03-13 | 株式会社日立制作所 | System and method for manufacturing thin plate by hot working |
| CN1060528C (en) * | 1994-12-20 | 2001-01-10 | 川崎制铁株式会社 | Method for making non-directional electrical steel band with uniform magnetic property in coil |
| US5639315A (en) * | 1994-12-20 | 1997-06-17 | Kawasaki Steel Corporation | Process for producing non-oriented electromagnetic steel strip capable of retaining uniform magnetic quality in a product coil |
| EP0718412A1 (en) * | 1994-12-20 | 1996-06-26 | Kawasaki Steel Corporation | Process for producing non-oriented electromagnetic steel strip capable of retaining uniform magnetic quality in a product coil |
| WO2017140891A1 (en) | 2016-02-17 | 2017-08-24 | Sms Group Gmbh | Continuous rolling in a multi-strand csp plant |
| WO2017140886A1 (en) | 2016-02-17 | 2017-08-24 | Sms Group Gmbh | Device and method for the friction welding of warm metallic products |
| WO2019030392A1 (en) | 2017-08-10 | 2019-02-14 | Sms Group Gmbh | DEVICE AND METHOD FOR FRICTION WELDING OF WARM METALLIC PRODUCTS |
| DE102017213986A1 (en) | 2017-08-10 | 2019-02-14 | Sms Group Gmbh | Apparatus and method for friction welding warm metallic products |
| EP4122613A1 (en) * | 2021-07-23 | 2023-01-25 | SMS Group GmbH | Method for producing a metallic strip |
| EP4122614A1 (en) * | 2021-07-23 | 2023-01-25 | SMS Group GmbH | Method for producing a coil made of a metallic strip |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61259804A (en) | 1986-11-18 |
| EP0201744A3 (en) | 1987-11-04 |
| CN86102922A (en) | 1986-11-05 |
| US4711114A (en) | 1987-12-08 |
| DE3517090A1 (en) | 1986-11-13 |
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