EP0571789A1 - Bar or wire rod device with a continuous rolling train for small rections or wire - Google Patents
Bar or wire rod device with a continuous rolling train for small rections or wire Download PDFInfo
- Publication number
- EP0571789A1 EP0571789A1 EP93107310A EP93107310A EP0571789A1 EP 0571789 A1 EP0571789 A1 EP 0571789A1 EP 93107310 A EP93107310 A EP 93107310A EP 93107310 A EP93107310 A EP 93107310A EP 0571789 A1 EP0571789 A1 EP 0571789A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stand
- loop
- finishing
- train
- pilot
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 2
- 241000283153 Cetacea Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- 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
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
Definitions
- the invention relates to a rolling mill for wire or bar steel with a continuous fine steel or wire mill, comprising a single-core or multi-core roughing mill with pilot stand, at least one single-core downstream of it, a cooling section with subsequent compensation section and an intermediate stand group, and a finishing train downstream of this with single-core Finishing stand group.
- the invention has for its object to improve a rolling mill for wire or bar steel of the type mentioned in such a way that the aforementioned difficulties and technical limits, caused by uneven temperature distribution over the bar length and bar cross-section and the resulting consequences of changing finishing speeds and overcome simple Kind of be balanced.
- the object is achieved with the invention in a rolling mill of the type mentioned in the preamble of claim 1 in that between the pilot stand and the intermediate stand group, a first compensation section with a 180 o loop of the rolling stock guided by a first horizontal loop former and between the intermediate stand group and the finishing stand group is arranged with a second compensation section with a 180 o loop of the rolling stock guided through a second horizontal loop former.
- the running length of the rolling stock is more than doubled and tripled in some cases with the spatial distance between the roughing train and finishing train unchanged.
- the run length between the roughing train and the finishing train, and thus this route can be chosen to be so large that a satisfactory temperature compensation between core and surface is achieved even with the use of a water box in the compensation section with the resulting longer running time of the rolling stock.
- the lengthening of the barrel length by forming a horizontal 180 o loop also applies to the section between the intermediate stand group and the finishing train, which ensures that the possible temperature control of the rolling stock by means of the water box ensures that it is at a uniform temperature both over the bar length and also enters the finishing stand group via the cross-section of the bar.
- Multi-core roads can be operated according to the invention like single-core, and the top speed can be increased without increasing the disturbance rate.
- the rolling stock (30, 30a) leaves the pilot stand (2) of the roughing train (1). Its cross-section fluctuates in a range of approx. 5% due to the inevitable longitudinal tension between the scaffolding in front of it (1) and the pilot scaffold (2). Because these cross-sectional differences in the downstream single-core intermediate line (5) are compensated for by the intermediate frame group (3), this leads to speed differences. These are now compensated in the first 180 o loop (25), which according to the invention is connected upstream of the intermediate scaffold group (3), within the first compensation section (10) which is lengthened as a result.
- the first loop former (20) is arranged to be displaceable on rails in the direction of the arrow (22) and is equipped with drive means for displacement. That not shown in detail Drive means is designed, for example, with a pneumatic piston-cylinder unit, the stroke length (22) of which can be approximately one meter.
- the run length of the rolling stock (30) between the pilot stand (2) and the finishing train (6) is almost tripled by the rolling stock (30) once in the direction of the arrows (31) as shown in the drawing by right to left and after redirection in the first loop former (20) by 180 o according to arrow (32) again from left to right and then for the third time, again after redirection in second loop former (21) by 180 o , according to arrow ( 33) for the third time.
- An embodiment of the invention provides that the pilot stand (2) is arranged downstream of at least one water box (12) in the o of the first 180 -Schlinge (25) compensating section (10) formed, can be carried out with the temperature control of the rolling stock.
- a further embodiment of the invention provides that the intermediate stand group (3) is arranged downstream of at least one water box (13) within the o from the second 180 -Schlinge (26) compensating section (11) formed.
- This water box (13) has a sufficiently long running distance up to the inlet into the finishing stand (4) of the finishing train (6), so that the required temperature compensation between the core and the surface of the rolling stock is ensured.
- a particularly expedient arrangement results from the fact that the intermediate stand group (3), the loop formers (20, 21) and the 180 o loops (25, 26) extending between them are offset laterally next to the roughing train (1) and the finishing train ( 4) connecting production line (xx) are arranged.
- the last roughing mill stand can also be designed as a pilot stand and at the same time the two finishing lines (6, 6a) can work as fixed stands at constant speed, with all speed differences, in particular as a result of cross-sectional fluctuations in the pilot stand and the resulting length differences in the 180 o - Loop tables (25, 26, 25a, 26a) can be caught.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
Die Erfindung betrifft ein Walzwerk für Draht oder Stabstahl mit einer kontinuierlichen Feinstahl- oder Drahstraße, umfassend eine ein- oder mehradrige Vorstraße mit Pilotgerüst, mindestens eine diesem nachgeordnete einadrige, eine Kühlstrecke mit anschließender Ausgleichsstrecke und eine Zwischengerüstgruppe aufweisende Zwischenstraße sowie eine dieser nachgeordnete Fertigstraße mit einadriger Fertiggerüstgruppe.The invention relates to a rolling mill for wire or bar steel with a continuous fine steel or wire mill, comprising a single-core or multi-core roughing mill with pilot stand, at least one single-core downstream of it, a cooling section with subsequent compensation section and an intermediate stand group, and a finishing train downstream of this with single-core Finishing stand group.
Bei modernen Draht- und Stabstahlstraßen mit großen Anstichquerschnitten vergrößern sich, auch bei hohen Endwalzgeschwindigkeiten, die durch ungleichmäßige Temperaturverteilung über die Stablänge und den Stabquerschnitt resultierenden Probleme. Bei mehradrigen Straßen werden zusätzlich pendelnde Fertiggeschwindigkeiten beobachtet. Diese resultieren aus den unterschiedlichen Walzgutquerschnitten im mehradrigen Bereich der Straße, die zu einer schnellen Geschwindigkeitsregelung der hinter dem Pilotgerüst angeordneten Anlagenteile führen. Die sich hieraus ergebenden Schwierigkeiten können so groß werden, daß letztlich die Fertigwalzgeschwindigkeit reduziert werden muß. Beispielweise schwankt bei dem aus dem Pilotgerüst austretenden Walzgut dessen Querschnitt infolge des unvermeidlichen Längszuges zwischen den davorliegenden Gerüsten, wobei die auftretenden Querschnittsdifferenzen zwischen einem minimalen und einem maximalen Wert im Bereich von ca. 5 % liegen können. Diese Querschnittsdifferenzen werden dann in der nachgeordneten einadrigen Zwischenstraße weitgehend ausgeglichen. Dies führt jedoch zu Geschwindigkeitsunterschieden, die bei hohen Fertigwalzgeschwindigkeiten so groß werden können, daß diese reduziert werden müssen, um Störungen zu vermeiden.In modern wire and bar steel mills with large tapping cross sections, even at high final rolling speeds, the problems resulting from uneven temperature distribution over the bar length and bar cross section increase. In the case of multi-core roads, oscillating finished speeds are also observed. These result from the different rolled material cross-sections in the multi-core area of the road, which lead to fast speed control of the system parts arranged behind the pilot stand. The resulting difficulties can become so great that ultimately the finish rolling speed must be reduced. For example, the cross-section of the rolling stock emerging from the pilot stand fluctuates as a result of the inevitable longitudinal tension between the stands in front of it, the cross-sectional differences that occur between a minimum and a maximum value being in the range of approximately 5%. These cross-sectional differences are then largely compensated for in the downstream single-core intermediate street. However, this leads to speed differences which can become so great at high finishing speeds that they have to be reduced in order to avoid malfunctions.
Der Erfindung liegt die Aufgabe zugrunde, ein Walzwerk für Draht oder Stabstahl der eingangs genannten Art dahingehend zu verbessern, daß die vorgenannten Schwierigkeiten und technischen Grenzen, hervorgerufen durch ungleichmäßige Temperaturverteilung über die Stablänge und den Stabquerschnitt sowie die daraus resultierenden Folgen wechselnder Fertiggeschwindigkeiten überwunden und auf einfache Art ausgeglichen werden.The invention has for its object to improve a rolling mill for wire or bar steel of the type mentioned in such a way that the aforementioned difficulties and technical limits, caused by uneven temperature distribution over the bar length and bar cross-section and the resulting consequences of changing finishing speeds and overcome simple Kind of be balanced.
Die Lösung der Aufgabe gelingt mit der Erfindung bei einem Walzwerk der im Oberbegriff von Anspruch 1 genannten Art dadurch, daß zwischen dem Pilotgerüst und der Zwischengerüstgruppe eine erste Ausgleichsstrecke mit einer durch einen ersten horizontalen Schlingenbildner geführten 180o-Schlinge des Walzgutes und zwischen der Zwischengerüstgruppe und der Fertiggerüstgruppe eine zweite Ausgleichsstrecke mit einer durch einen zweiten horizontalen Schlingenbildner geführten 180o-Schlinge des Walzgutes angeordnet ist.The object is achieved with the invention in a rolling mill of the type mentioned in the preamble of claim 1 in that between the pilot stand and the intermediate stand group, a first compensation section with a 180 o loop of the rolling stock guided by a first horizontal loop former and between the intermediate stand group and the finishing stand group is arranged with a second compensation section with a 180 o loop of the rolling stock guided through a second horizontal loop former.
Mit Vorteil wird durch die Erfindung mit der Bildung von horizontalen Schlingen erreicht, daß die Lauflänge des Walzgutes bei unveränderter räumlicher Entfernung zwischen Vorstraße und Fertigstraße mehr als verdoppelt und fallweise verdreifacht wird. Auf diese Weise kann ohne Vergrößerung der Hallenlänge die Lauflänge zwischen Vorstraße und Fertigstraße und damit diese Strecke so groß gewählt werden, daß bei der dadurch verlängerten Laufzeit des Walzgutes ein zufriedenstellender Temperaturausgleich zwischen Kern und Oberfläche auch bei Einsatz eines Wasserkastens in der Ausgleichsstrecke erzielt wird. In gleicher Weise trifft die Verlängerung der Lauflänge durch Bildung einer horizontalen 180o-Schlinge auch auf die Strecke zwischen der Zwischengerüstgruppe und der Fertigstraße zu, wodurch sichergestellt wird, daß durch die mögliche Temperaturregelung des Walzgutes mittels des Wasserkastens dieses mit gleichmäßiger Temperatur sowohl über die Stablänge als auch über den Stabquerschnitt in die Fertiggerüstgruppe einläuft. Bei entsprechend gewählten Abständen innerhalb der Schlingen- bzw. von Schlingenbildner zu Schlingenbildner ist infolge der damit erzielbaren Laufzeitverlängerung eine vollkommene Rekristallisation des Walgutes ohne Schwierigkeiten erreichbar.It is advantageously achieved by the invention with the formation of horizontal loops that the running length of the rolling stock is more than doubled and tripled in some cases with the spatial distance between the roughing train and finishing train unchanged. In this way, without increasing the length of the hall, the run length between the roughing train and the finishing train, and thus this route, can be chosen to be so large that a satisfactory temperature compensation between core and surface is achieved even with the use of a water box in the compensation section with the resulting longer running time of the rolling stock. In the same way, the lengthening of the barrel length by forming a horizontal 180 o loop also applies to the section between the intermediate stand group and the finishing train, which ensures that the possible temperature control of the rolling stock by means of the water box ensures that it is at a uniform temperature both over the bar length and also enters the finishing stand group via the cross-section of the bar. With correspondingly selected distances within the loop or from loop former to loop former, a complete recrystallization of the whale material can be achieved without difficulty due to the prolongation of the transit time which can be achieved thereby.
Wegen der großen Lauflängenkapazität der 180o-Schlingen ist es möglich, die Geschwindigkeit der Fertiggerüstgruppe über einen Stabdurchlauf konstant zu halten. Dabei werden die vorstehend geschilderten Schwierigkeiten bei mehradrigen Straßen und insbesondere die am Auslauf aus den Fertiggerüsten zu beobachtenden Probleme verringert. Mehradrige Straßen können nach der Erfindung wie einadrige betrieben werden, und die Endgeschwindigkeit kann gesteigert werden, ohne daß hierdurch die Störrate ansteigt.Because of the large run length capacity of the 180 o loops it is possible to keep the speed of the finishing stand group constant over a bar run. The above-described difficulties with multi-core roads and in particular the problems to be observed at the outlet from the finishing stands are reduced. Multi-core roads can be operated according to the invention like single-core, and the top speed can be increased without increasing the disturbance rate.
Ausgestaltungen der Erfindungen sind entsprechend den Unteransprüchen vorgesehen. Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles. Bei diesem verläßt das Walzgut (30, 30a) das Pilotgerüst (2) der Vorstraße (1). Sein Querschnitt schwankt infolge des unvermeidlichen längszuges zwischen den davorliegenden Gerüsten der Vorstraße (1) sowie des Pilotgerüstes (2) in einem Bereich von ca. 5%. Weil diese Querschnittsunterschiede in der nachgeordneten einadrigen Zwischenstraße (5) durch die Zwischengerüstgruppe (3) ausgeglichen werden, führt dies zu Geschwindigkeitsunterschieden. Diese werden nunmehr in der ersten 180o-Schlinge (25), welche erfindungsgemäß der Zwischengerüstgruppe (3) vorgeschaltet ist, innerhalb der dadurch verlängerten ersten Ausgleichsstrecke (10) ausgeglichen. Zum Ausgleich ist der erste Schlingenbildner (20) in Richtung des Pfeiles (22) auf Schienen verschiebbar angeordnet und mit Antriebsmitteln zum Verschieben ausgestattet. Das im einzelnen nicht dargestellte Antriebsmittel ist beispielsweise mit einer pneumatischen Kolben-Zylinder-Einheit ausgebildet, dessen Hublänge (22) etwa einen Meter betragen kann.Refinements of the inventions are provided in accordance with the subclaims. Further details, features and advantages of the invention result from the following explanation of an exemplary embodiment shown schematically in the drawing. In this, the rolling stock (30, 30a) leaves the pilot stand (2) of the roughing train (1). Its cross-section fluctuates in a range of approx. 5% due to the inevitable longitudinal tension between the scaffolding in front of it (1) and the pilot scaffold (2). Because these cross-sectional differences in the downstream single-core intermediate line (5) are compensated for by the intermediate frame group (3), this leads to speed differences. These are now compensated in the first 180 o loop (25), which according to the invention is connected upstream of the intermediate scaffold group (3), within the first compensation section (10) which is lengthened as a result. To compensate, the first loop former (20) is arranged to be displaceable on rails in the direction of the arrow (22) and is equipped with drive means for displacement. That not shown in detail Drive means is designed, for example, with a pneumatic piston-cylinder unit, the stroke length (22) of which can be approximately one meter.
Die noch verbleibenden Querschnittsunterschiede des aus der Zwischengerüstgruppe (3) austretenden Walzgutes werden in der anschließenden Fertiggerüstgruppe (4) der Fertigstraße (6) ausgeglichen. Dies führt zu weiteren Geschwindigkeitsunterschieden, welche nunmehr erfindungsgemäß mit der zweiten 180o-Schlinge (26) mit der dadurch gebildeten zweiten Ausgleichsstrecke (11) kompensiert werden.The remaining cross-sectional differences of the rolling stock emerging from the intermediate stand group (3) are compensated in the subsequent finishing stand group (4) of the finishing train (6). This leads to further speed differences, which are now compensated according to the invention with the second 180 o loop (26) with the second compensation section (11) formed thereby.
Dabei wird die Lauflänge des Walzgutes (30) zwischen dem Pilotgerüst (2) und der Fertigstraße (6) nahezu verdreifacht, indem das Walzgut (30) den größten Teil dieser Strecke einmal in Richtung der Pfeile (31) entsprechend der Darstellung in der Zeichnung von rechts nach links und nach Umlenkung im ersten Schlingenbildner (20) um 180o entsprechend dem Pfeil (32) nochmals von links nach rechts und sodann zum dritten Mal, wiederum nach erfolgter Umlenkung im zweiten Schlingenbildner (21) um 180o, entsprechend dem Pfeil (33) zum dritten Mal durchläuft. Dabei ergibt sich eine erste Ausgleichsstrecke (10) und eine dieser nachgeordnete zweite Ausgleichsstrecke (11). Eine Ausgestaltung der Erfindung sieht vor, daß dem Pilotgerüst (2) in der von der ersten 180o-Schlinge (25) gebildeten Ausgleichsstrecke (10) wenigstens ein Wasserkasten (12) nachgeordnet ist, mit dem eine Temperaturregelung des Walzgutes erfolgen kann.The run length of the rolling stock (30) between the pilot stand (2) and the finishing train (6) is almost tripled by the rolling stock (30) once in the direction of the arrows (31) as shown in the drawing by right to left and after redirection in the first loop former (20) by 180 o according to arrow (32) again from left to right and then for the third time, again after redirection in second loop former (21) by 180 o , according to arrow ( 33) for the third time. This results in a first compensation section (10) and a second compensation section (11) arranged after this. An embodiment of the invention provides that the pilot stand (2) is arranged downstream of at least one water box (12) in the o of the first 180 -Schlinge (25) compensating section (10) formed, can be carried out with the temperature control of the rolling stock.
In der nunmehr durch die Schlinge (25) innerhalb der ersten Ausgleichsstrecke sich ergebenden vergleichsweise großen Lauflänge kann sich ein Temperaturausgleich zwischen Kern und Oberfläche des Walzgutes einstellen. Die Durchlaufstrecke zwischen dem Pilotgerüst (2) und der Fertiggerüstgruppe (4) der Fertigstraße (6) ist infolge Anordnung der beiden Schlingen (25) und (26) so groß, daß nunmehr das Walzgut mit gleichmäßigerer Temperatur sowohl über die Stablänge als auch über den Stabquerschnitt in die Fertiggerüstgruppe (4) einläuft. Wegen der Ausgleichs-Kapazität der 180o-Schlingen infolge Verfahrbarkeit (22) der Schlingenbildner (20, 21) ist es möglich, die Geschwindigkeit der Fertiggerüstgruppe über einen Stabdurchlauf konstant zu halten.Temperature compensation between the core and the surface of the rolling stock can take place in the comparatively long run length which now results from the loop (25) within the first compensation section. The throughput distance between the pilot stand (2) and the finishing stand group (4) of the finishing train (6) is so large due to the arrangement of the two loops (25) and (26) that now the rolling stock with a more uniform temperature over both the bar length and the Bar cross-section runs into the finishing stand group (4). Because of the equalizing capacity of the 180 o loops due to the movability (22) of the loop formers (20, 21), it is possible to keep the speed of the finishing stand group constant over one rod pass.
Eine weitere Ausgestaltung der Erfindung sieht vor, daß der Zwischengerüstgruppe (3) innerhalb der von der zweiten 180o-Schlinge (26) gebildeten Ausgleichsstrecke (11) wenigstens ein Wasserkasten (13) nachgeordnet ist. Dabei ist diesem Wasserkasten (13) noch eine genügend lange Laufstrecke bis zum Einlauf in das Fertiggerüst (4) der Fertigstraße (6) nachgeordnet, so daß der erforderliche Temperaturausgleich zwischen Kern und Oberfläche des Walzgutes gewährleistet ist.A further embodiment of the invention provides that the intermediate stand group (3) is arranged downstream of at least one water box (13) within the o from the second 180 -Schlinge (26) compensating section (11) formed. This water box (13) has a sufficiently long running distance up to the inlet into the finishing stand (4) of the finishing train (6), so that the required temperature compensation between the core and the surface of the rolling stock is ensured.
Eine besonders zweckmäßige Anordnung ergibt sich dadurch, daß die Zwischengerüstgruppe (3), die Schlingenbildner (20, 21) und die zwischen diesen sich erstreckenden 180o-Schlingen (25, 26) seitlich versetzt neben der die Vorstraße (1) und die Fertigstraße (4) verbindenden Produktionslinie (x-x) angeordnet sind.A particularly expedient arrangement results from the fact that the intermediate stand group (3), the loop formers (20, 21) and the 180 o loops (25, 26) extending between them are offset laterally next to the roughing train (1) and the finishing train ( 4) connecting production line (xx) are arranged.
Dadurch, daß die beiden Schlingenbildner (20, 21) in antipodischer Position, dabei der erste Schlingenbildner (20) eine vrgleichsweise kurze Strecke vor der Fertiggerüstgruppe (4) und der zweite Schlingenbildner (21) eine vergleichweise kurze Strecke nach dem Pilotgerüst (2), jeweils neben diesen nach außen versetzt angeordnet sind, ergibt sich eine optimale Nutzung der Raumverhältnisse bei unveränderter Länge der Produktionshalle.Characterized in that the two loop formers (20, 21) in antipodic position, the first loop formers (20) a comparatively short distance in front of the finishing stand group (4) and the second loop formers (21) a comparatively short distance after the pilot stand (2), are arranged next to each other offset to the outside, resulting in an optimal use of space with unchanged length of the production hall.
Eine entsprechend der zeichnerischen Darstellung sehr vorteilhafte Anordnung ergibt sich bei einer zweiadrigen Vorstraße (1) nach der Erfindung dadurch, daß der Vorstraße (1) in spiegelbildlicher Parallel-Anordnung je zwei einadrige Zwischenstraßen (5, 5a) und Fertigstraßen (4, 4a) nachgeordnet sind und jede Zwischenstraße (5, 5a) mit zwei 180o-Schlingen (25, 25a; 26, 26a) ausgebildete Ausgleichsstrecken (10, 10a) bzw. (11, 11a) aufweist.An arrangement which is very advantageous in accordance with the drawing is obtained in the case of a two-core roughing mill (1) according to the invention in that the roughing mill (1) is followed by two single-core intermediate streets (5, 5a) and finishing streets (4, 4a) in a mirror-image parallel arrangement are and each intermediate road (5, 5a) with two 180 o loops (25, 25a; 26, 26a) formed compensation lines (10, 10a) or (11, 11a).
Dabei kann auch das letzte Vorstraßengerüst als Pilotgerüst ausgebildet sein und zugleich können die beiden Fertigstraßen (6, 6a) als Festgerüste mit konstanter Geschwindigkeit arbeiten, wobei alle Geschwindigkeitsunterschiede, insbesondere infolge von Querschnittsschwankungen im Pilotgerüst und die dadurch verursachten Walzgut-Längenunterschiede in den 180o-Schlingentischen (25, 26, 25a, 26a) aufgefangen werden.The last roughing mill stand can also be designed as a pilot stand and at the same time the two finishing lines (6, 6a) can work as fixed stands at constant speed, with all speed differences, in particular as a result of cross-sectional fluctuations in the pilot stand and the resulting length differences in the 180 o - Loop tables (25, 26, 25a, 26a) can be caught.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4217149A DE4217149A1 (en) | 1992-05-23 | 1992-05-23 | Rolling mill for wire or bar steel with a continuous fine steel or wire mill |
| DE4217149 | 1992-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0571789A1 true EP0571789A1 (en) | 1993-12-01 |
| EP0571789B1 EP0571789B1 (en) | 1996-09-18 |
Family
ID=6459599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93107310A Expired - Lifetime EP0571789B1 (en) | 1992-05-23 | 1993-05-05 | Bar or wire rod device with a continuous rolling train for small rections or wire |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5345805A (en) |
| EP (1) | EP0571789B1 (en) |
| JP (1) | JP3271823B2 (en) |
| AT (1) | ATE142918T1 (en) |
| DE (2) | DE4217149A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0987064A2 (en) * | 1998-09-19 | 2000-03-22 | Sms Schloemann-Siemag Aktiengesellschaft | Continuous rolling mill for small sections or wire |
| US6327885B1 (en) | 1999-07-26 | 2001-12-11 | Voest-Alpine Industrieanlagenbau Gmbh | Rolling-mill installation |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6185972B1 (en) | 1999-03-11 | 2001-02-13 | Morgan Construction Company | Rolling mill finishing section |
| DE19913452A1 (en) * | 1999-03-25 | 2000-09-28 | Sms Demag Ag | Arrangement of the multi-stand finishing block and the downstream multi-stand post block in single-core wire rolling mills |
| ITMI20042002A1 (en) * | 2004-10-21 | 2005-01-21 | Danieli Off Mecc | BAR TREATMENT PROCESS |
| ITMI20050428A1 (en) * | 2005-03-16 | 2006-09-17 | Vai Pomini Srl | LAMINATION MONOBLOC WITH INTERFRIGERATION |
| DE102005044299A1 (en) * | 2005-09-16 | 2007-03-22 | Sms Meer Gmbh | Wire path for rolling wire has preliminary, intermediate and completed paths with wire store between them for receiving and issuing wire |
| CN111215446B (en) * | 2019-11-18 | 2021-10-08 | 盐城市联鑫钢铁有限公司 | High-speed rod production line of double-line |
| CN111229830B (en) * | 2020-01-15 | 2021-12-07 | 无锡瑞进智能工程有限公司 | Equipment for producing wire or bar by using 180-degree uniform-temperature large loop rolled by real heat engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1598129A (en) * | 1968-01-11 | 1970-06-29 | ||
| FR2251385A1 (en) * | 1973-11-15 | 1975-06-13 | Bethlehem Steel Corp | |
| DE2717780A1 (en) * | 1977-04-21 | 1978-11-02 | Hamburger Stahlwerke Gmbh | METHOD FOR MANUFACTURING ROLLED WIRE |
| DE2924954A1 (en) * | 1979-06-21 | 1981-01-22 | Kocks Technik | CONTINUOUS ROLLING MILL FOR ROLLING WIRE OR BARS |
| GB2175524A (en) * | 1985-05-25 | 1986-12-03 | Kocks Technik | Method of controlled rod or wire rolling of alloy steel |
| EP0264868A2 (en) * | 1986-10-20 | 1988-04-27 | Sms Schloemann-Siemag Aktiengesellschaft | Medium or light section rolling mill |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US820396A (en) * | 1902-08-01 | 1906-05-15 | Fred H Daniels | Rod-rolling mill. |
| US1307156A (en) * | 1918-07-30 | 1919-06-17 | John L Smith | Retarder for rod-mills. |
| DE1158932B (en) * | 1962-02-24 | 1963-12-12 | Siemag Siegener Masch Bau | Continuous rolling mill for wire and fine iron, in particular for rolling stainless steel, consists of several staggered lines |
| DE3830101A1 (en) * | 1988-09-05 | 1990-03-15 | Schloemann Siemag Ag | METHOD FOR OPERATING A STEEL ROLLING MILL WITH A REFRIGERATION LINE ARRANGED ON A ROLLING LINE FOR THERMOMECHANICAL FINISHED ROLLS AND ROLLING STEEL ROLLING MILL FOR IMPLEMENTING THE METHOD |
-
1992
- 1992-05-23 DE DE4217149A patent/DE4217149A1/en not_active Withdrawn
-
1993
- 1993-05-05 DE DE59303819T patent/DE59303819D1/en not_active Expired - Lifetime
- 1993-05-05 EP EP93107310A patent/EP0571789B1/en not_active Expired - Lifetime
- 1993-05-05 AT AT93107310T patent/ATE142918T1/en active
- 1993-05-19 US US08/065,097 patent/US5345805A/en not_active Expired - Lifetime
- 1993-05-21 JP JP11977693A patent/JP3271823B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1598129A (en) * | 1968-01-11 | 1970-06-29 | ||
| FR2251385A1 (en) * | 1973-11-15 | 1975-06-13 | Bethlehem Steel Corp | |
| DE2717780A1 (en) * | 1977-04-21 | 1978-11-02 | Hamburger Stahlwerke Gmbh | METHOD FOR MANUFACTURING ROLLED WIRE |
| DE2924954A1 (en) * | 1979-06-21 | 1981-01-22 | Kocks Technik | CONTINUOUS ROLLING MILL FOR ROLLING WIRE OR BARS |
| GB2175524A (en) * | 1985-05-25 | 1986-12-03 | Kocks Technik | Method of controlled rod or wire rolling of alloy steel |
| EP0264868A2 (en) * | 1986-10-20 | 1988-04-27 | Sms Schloemann-Siemag Aktiengesellschaft | Medium or light section rolling mill |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0987064A2 (en) * | 1998-09-19 | 2000-03-22 | Sms Schloemann-Siemag Aktiengesellschaft | Continuous rolling mill for small sections or wire |
| US6105412A (en) * | 1998-09-19 | 2000-08-22 | Sms Schloemann-Siemag Aktiengesellschaft | Continuous light-section or wire train |
| EP0987064A3 (en) * | 1998-09-19 | 2003-05-02 | SMS Demag AG | Continuous rolling mill for small sections or wire |
| US6327885B1 (en) | 1999-07-26 | 2001-12-11 | Voest-Alpine Industrieanlagenbau Gmbh | Rolling-mill installation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3271823B2 (en) | 2002-04-08 |
| US5345805A (en) | 1994-09-13 |
| JPH0639402A (en) | 1994-02-15 |
| DE59303819D1 (en) | 1996-10-24 |
| DE4217149A1 (en) | 1993-11-25 |
| ATE142918T1 (en) | 1996-10-15 |
| EP0571789B1 (en) | 1996-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0571789B1 (en) | Bar or wire rod device with a continuous rolling train for small rections or wire | |
| EP2310152B1 (en) | Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method | |
| DE3103530A1 (en) | METHOD FOR INTERLOCKING CALIBERS INTENDED FOR THE DIVING STICK OF A UNIVERSAL ROLLING PROCESS OF PROFILE PIECES, AND ROLLING, ROLLING DEVICES AND ROLLING MACHINES FOR CARRYING OUT THIS METHOD | |
| EP0593002A1 (en) | Method and device for rolling of hot wide strip of continuously cast thin stabs | |
| DE3245090A1 (en) | METHOD AND DEVICE FOR ROLLING METAL STRIPS | |
| AT410063B (en) | METHOD AND SYSTEM FOR ROLLING WARMED METALLIC GOODS | |
| WO2016165933A1 (en) | Casting/rolling system and method for operating same | |
| EP0987064B1 (en) | Continuous rolling mill for small sections or wire | |
| EP1767289B2 (en) | Dispositif permettant de guider les barres de coulee | |
| DE1427875A1 (en) | Rolling mill for rolling and method for producing profiles, such as double T-beams or the like. with thin wall thickness | |
| DE2522070A1 (en) | ROLLED GOODS GUIDE FOR A ROLLING STAND | |
| DE19625811A1 (en) | Rolling of rod or wire with narrow tolerances - in a rolling installation, including at least two rolling units of high stiffness positioned one after another | |
| DE10032833B4 (en) | Rolling mill | |
| DE19543605A1 (en) | Process for cross-sectional control of rolling stock | |
| DE2908409C2 (en) | Rolling train for rolling bars or wire | |
| EP0845310B1 (en) | Wire cooling | |
| EP0560115A1 (en) | Method and rolling mill for precision rolling wire or stock having a circular cross-section | |
| DE4446659C1 (en) | Working method for producing pipe in drawing roller | |
| DE10257971A1 (en) | Sheet metal strip cold rolling mill has contact rollers which may be displaced left or right in accordance with the metal strip running direction | |
| EP0913210B1 (en) | Rolling installation for the rolling of all types of finished profiles | |
| AT523692B1 (en) | Process and device for the production of welded reinforcement grids with high strength and elongation values | |
| DE2745684C2 (en) | Cross rolling mill | |
| EP0181474A2 (en) | Six-high roll stand | |
| DE3841980A1 (en) | Six-high rolling mill | |
| DE102005036184A1 (en) | Controlling the cross-section of wire strands leaving a wire rod mill comprises carrying out drawing for the cross-sectional changes in front of the last common drive group of a roll stand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19930527 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR GB IT SE |
|
| 17Q | First examination report despatched |
Effective date: 19941213 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR GB IT SE |
|
| REF | Corresponds to: |
Ref document number: 142918 Country of ref document: AT Date of ref document: 19961015 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59303819 Country of ref document: DE Date of ref document: 19961024 |
|
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
| ET | Fr: translation filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19961212 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030512 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050131 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120523 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120522 Year of fee payment: 20 Ref country code: SE Payment date: 20120522 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120529 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20120511 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59303819 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20130504 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 142918 Country of ref document: AT Kind code of ref document: T Effective date: 20130505 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20130504 Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20130507 |