EP1463591A1 - Method and rolling stand for producing rods, bar stock or seamless tubes - Google Patents

Method and rolling stand for producing rods, bar stock or seamless tubes

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Publication number
EP1463591A1
EP1463591A1 EP03729229A EP03729229A EP1463591A1 EP 1463591 A1 EP1463591 A1 EP 1463591A1 EP 03729229 A EP03729229 A EP 03729229A EP 03729229 A EP03729229 A EP 03729229A EP 1463591 A1 EP1463591 A1 EP 1463591A1
Authority
EP
European Patent Office
Prior art keywords
rolling
mill
rolling mill
rolls
bar
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
Application number
EP03729229A
Other languages
German (de)
French (fr)
Other versions
EP1463591B1 (en
Inventor
Manfred Leferink
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE10261632A external-priority patent/DE10261632B4/en
Application filed by SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1463591A1 publication Critical patent/EP1463591A1/en
Application granted granted Critical
Publication of EP1463591B1 publication Critical patent/EP1463591B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—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
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—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
    • B21B1/20—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 non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/78—Control of tube rolling

Definitions

  • the invention relates to a method and a rolling plant for producing wire, rods or seamless tubes on a rolling plant for rolling heated metallic material, comprising optionally a perforated rolling mill, a multi-stand stretching rolling mill as the main drawing stage, a pull-out rolling mill, a finishing mill, viewed in the rolling direction and a wire rolling block as well as upstream, intermediate or downstream equipment such as a preheating and post-heating furnace, roller tables, separating devices and a cooling bed.
  • BESTATIGUNGSKOPIE The invention is therefore based on the object of providing a rolling method and a rolling installation of the type mentioned at the outset, which permit optimized operation with a further reduced outlay on equipment.
  • a 3-roll continuous rolling mill is used in the main stretching stage and is used both for tube rolling and for solid rolling in the production of bars, wire or the like, for which purpose a mandrel bar used for tube rolling in an out-of-operation position is brought and provided steel bar rolls with rolls calibrated for a large diameter reduction are exchanged for the rolls with their rolls calibrated for pipe rolling.
  • continuous rolling mill sometimes also called “continuous tube rolling mill” the person skilled in the art understands a rolling mill consisting of several consecutive rolling stands with an internal mandrel bar, as has become known, for example, from DE-Z "Berg- und Wegtenmännchen Monthly Bulletin 130 (1985) No. 7, pages 205 to 211. "
  • An advantageous embodiment of the method according to the invention provides that a 3-roll cross-rolling mill is also used for the perforating mill upstream of the main stretching stage, the perforated rollers for solid rolling with removed piercing mandrel bar being exchanged for provided steel bar rollers with rollers calibrated for diameter reduction.
  • the 3-roll cross-rolling mill according to the invention in a perforated rolling mill then enables the production of different bar steel diameters in the sense of a pre-reduction, i.e. with a piercing rod moved away for solid rolling. a proportional reduction in cross-section based on the total reduction of all operated rolling mills.
  • the piercing mill also fulfills a universal function.
  • a rolling mill for carrying out the method has a multi-stand 3-roll continuous rolling mill designed to hold steel bar rolls or tube rolls and a device for removing the mandrel bar.
  • the continuous rolling mill or the main stretching stage takes on either the one or the other stands or sets of rolls, each consisting of three rolls, on a frame.
  • Corresponding stands can be provided in addition to the continuous rolling mill, which can then be brought into the operating position after the previous stands have been pulled out of the frame.
  • a cassette construction or the exchange of only the rollers with the scaffold housings remaining in the frame is possible.
  • the mandrel bar can be moved to a non-operating position with the aid of the dome bar holding device when converting the 3-roll continuous rolling mill to solid rolling.
  • This also applies to the perforated dome rod of the cross-rolling mill optionally upstream of the main stretching stage, which according to one embodiment of the invention is also designed as a universally usable 3-roll cross-rolling mill.
  • a preferred embodiment of the invention provides that a speed control is assigned to the 3 ⁇ / valve continuous rolling mill of the main stretching stage. This advantageously enables the different rolling speeds to be achieved in tube and bar rolling.
  • the pull-out rolling mill arranged behind the main stretcher advantageously has two stand units which are arranged at a distance from one another and have end shears which can be inserted between them, bad ends can be easily cut off before further rolling in solid rolling. On the other hand, the use of scissors is not necessary for tube rolling.
  • the pull-out rolling mill is advantageously followed by a reheating furnace. From there, the heat-treated steel bars or, for example, alloyed or unalloyed steel pipes reach the finishing mill. This can include a sizing mill, a reducing mill or a stretch-reducing mill or a combination of these units. If a steel bar is to be rolled into wire, a roller table leading to the wire block is arranged behind the cooling bed.
  • the universal rolling mill shown in the system diagram processes in one line, i.e. deviating from the drawing, the plant part shown in the lower half of the figure linearly joins the plant parts of the upper half of the drawing, which is indicated by the meandering line, an input material (insert block) either to seamless tubes or to bars, wire or similar solid rolled material.
  • a heated insert block is fed from there to a perforated cross-rolling mill designed as a 3-roll cross-rolling mill 3, where the block is guided in an inlet channel and rolled onto a mandrel bar provided with a piercing mandrel to form a hollow block in preparation for the subsequent rolling out to a seamless one Tube is deformed.
  • a cross roll mill 3 in three-roll construction is known in the manufacture of pipes. If it is not pipes but rods or wire that are to be rolled, the 3-roll cross-rolling mill 3 is used with the mandrel rod held back or removed from the rolling line. massively reducing the block and compacting the structure instead.
  • the hollow blocks or the solid blocks are loaded into the downstream rolling devices.
  • These include a main drafting stage 4, which here as a 6-stand 3-roll Continuous rolling mill 5 is formed.
  • a pull-out rolling mill 6 which here has two stand units 6a, 6b arranged at a distance from one another. Insertable end shears 8, 9 are provided both between the multi-stand 3-roll continuous rolling mill 5 and the pull-out rolling mill 6 and between the two stand units 6a, 6b of the pull-out rolling mill 6.
  • a hollow block is stretched in the 6-stand 3-roll continuous rolling mill 5 and, after pulling out the mandrel bar, which is carried out by a back and forth mandrel bar holding device, reduced as a slug in the two stand units 6a, 6b of the pull-out rolling mill 6, while at Solid rolling, even the 6-stand 3-roll continuous rolling mill 5, like the pull-out rolling mill 6, reduces the bar steel by reducing the diameter.
  • the rolling stock is brought to the required temperature in a reheating furnace 11.
  • a cropping saw 12 arranged on the outlet side of the sizing or stretching reduction mill 10 divides the finished tube or the finished rolled steel bar into the desired lengths. The finished lengths are then transferred to a cooling bed 13. If, on the other hand, the bar steel is to be rolled into wire, the bar steel is fed to a wire block 15 via an extension of the cooling bed roller table 14.
  • the universal rolling mill described thus allows seamless pipes as well as bars or wire to be rolled in one line.
  • the rolls which have been calibrated for the pipe rolling are previously exchanged for rolls calibrated for a solid rolling and the mandrel rod is brought drive position, for example by moving the mandrel rod holding device into its retracted starting position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The invention relates to a method for producing rods, bar stock or seamless tubes on a rolling stand for rolling hot metal material. Said rolling stand optionally comprises, when seen in the direction of rolling, a piercing-crossrolling mill, a multiple-stand stretch-rolling mill as the main stretching stage (4), a drawing mill (6), a finishing mill (10) and a rod rolling block (15) and devices, mounted upstream, intermediately or downstream thereof, such as a preheating furnace and a reheating furnace (11), roller tables (14) and a cooling bed (13). According to the inventive method, in the main stretching stage (4), a three-roller continuous rolling mill (3) is used both for rolling tubes and for massive rolling for producing bar stock, rods or the like. For massive rolling, the mandrel bar used for tube milling is brought out of the operative position and the provided bar stock rolls calibrated for a larger diameter reduction than used for tube milling are replaced by rolls calibrated for tube milling. A rolling mill suitable for carrying out the inventive method has, in the main stretching stage (4), a multi-stand three-roller continuous rolling mill (3) adapted to receive bar stock rolls or tube rolls and a device for removing the mandrel bar.

Description

Verfahren und Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen RohrenProcess and rolling plant for the production of wire, bars or seamless tubes
Die Erfindung betrifft ein Verfahren und eine Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen Rohren auf einer Walzanlage zum Walzen von erwärmtem metallischem Gut, umfassend in Walzrichtung gesehen optional ein Lochwalzwerk, ein mehrgerüstiges Streckwalzwerk als Hauptstreckstufe, ein Aus- zieh-Walzwerk, ein Fertigwalzwerk und einen Drahtwalzblock sowie vor-, zwischen- oder nachgeschaltete Einrichtungen wie einen Vor- und einen Nachwärm- ofen, Rollgänge, Trennvorrichtungen und ein Kühlbett.The invention relates to a method and a rolling plant for producing wire, rods or seamless tubes on a rolling plant for rolling heated metallic material, comprising optionally a perforated rolling mill, a multi-stand stretching rolling mill as the main drawing stage, a pull-out rolling mill, a finishing mill, viewed in the rolling direction and a wire rolling block as well as upstream, intermediate or downstream equipment such as a preheating and post-heating furnace, roller tables, separating devices and a cooling bed.
Um eine bessere Auslastung der Walzanlage zu ermöglichen und um zum Herstellen von Rohren nicht mehr eine andere Walzanlage als zum Herstellen von Draht, Stäben oder dergleichen Walzgut zu benötigen, ist es durch die DE 199 35 647 A1 bekanntgeworden, das Walzen von Draht, Stäben oder dergleichen sowie das Walzen von nahtlosen Rohren auf derselben Walzanlage in zwei Walzlinien durchzuführen, wobei ein Teil der Anlagen-Aggregate sowohl beim Rohrwalzen (nahtlose Rohre) als auch beim Massivwalzen (Draht, Stäbe oder dergleichen) benutzt wird. Obschon sich damit die Anzahl der insgesamt benötigten Aggregate verringern läßt, weil beispielsweise in der Walzanlage vorhandene Öfen, Trennvorrichtungen, das Kühlbett und Abschnitte der Rollgänge universell genutzt werden können, sind gleichwohl hinter dem das Walzgut auf Walztemperatur erwärmenden Ofen und einer diesem nachgeordneten Quertransporteinrichtung nebeneinander eine Walzlinie für Draht oder Stäbe und eine für Rohre erforderlich, d.h. parallel nebeneinander zwei separate Walzlinien. Diese sind dann im Materialfluß bzw. in Walzrichtung erst sehr viel später wieder zu einer gemeinsamen Walzlinie zusammengefaßt.In order to enable better utilization of the rolling mill and to no longer need a rolling mill other than the manufacture of wire, rods or similar rolling stock for the production of pipes, it has become known from DE 199 35 647 A1 that the rolling of wire, bars or the same as well as the rolling of seamless tubes on the same rolling mill in two rolling lines, a part of the plant aggregates being used both in tube rolling (seamless tubes) and in solid rolling (wire, bars or the like). Although this can reduce the total number of units required, for example because existing furnaces, separators, the cooling bed and sections of the roller tables can be used universally in the rolling mill, there are one behind the furnace that heats the rolling stock to the rolling temperature and a transverse transport device downstream of it Rolling line required for wire or bars and one for pipes, ie two separate rolling lines in parallel. These are then combined in the material flow or in the rolling direction much later to form a common rolling line.
BESTATIGUNGSKOPIE Der Erfindung liegt daher die Aufgabe zugrunde, ein Walzverfahren und eine Walzanlage der eingangs genannten Art zu schaffen, die eine optimierte Betriebsweise mit weiter verringertem Anlagenaufwand erlauben.BESTATIGUNGSKOPIE The invention is therefore based on the object of providing a rolling method and a rolling installation of the type mentioned at the outset, which permit optimized operation with a further reduced outlay on equipment.
Diese Aufgabe wird mit einem Verfahren erfindungsgemäß dadurch gelöst, daß in der Hauptstreckstufe ein 3-Waizen-Kontiwalzwerk verwendet und sowohl zum Rohrwalzen als auch zum Massivwalzen bei der Herstellung von Stäben, Draht oder dergleichen benutzt wird, wozu beim Massivwalzen eine zum Rohrwalzen eingesetzte Dornstange in eine Außerbetriebsposition gebracht wird und bereitgestellte Stabstahlwalzen mit für eine große Durchmesserreduktion kalibrierten Walzen gegen die Walzen mit ihren für die Rohrwalzung kalibrierten Walzen ausgetauscht werden. Unter "Kontiwalzwerk", manchmal auch "Rohrkontiwalzwerk" genannt, versteht der Fachmann ein aus mehreren hintereinanderliegenden Walzgerüsten bestehendes Walzwerk mit innenliegender Dornstange, wie beispielsweise bekanntgeworden durch die DE-Z "Berg- und Hüttenmännische Monatshefte 130 (1985) Heft 7, Seiten 205 bis 211."This object is achieved with a method according to the invention in that a 3-roll continuous rolling mill is used in the main stretching stage and is used both for tube rolling and for solid rolling in the production of bars, wire or the like, for which purpose a mandrel bar used for tube rolling in an out-of-operation position is brought and provided steel bar rolls with rolls calibrated for a large diameter reduction are exchanged for the rolls with their rolls calibrated for pipe rolling. By "continuous rolling mill", sometimes also called "continuous tube rolling mill", the person skilled in the art understands a rolling mill consisting of several consecutive rolling stands with an internal mandrel bar, as has become known, for example, from DE-Z "Berg- und Hüttenmännchen Monthly Bulletin 130 (1985) No. 7, pages 205 to 211. "
Während bei der bekannten Walzanlage die Massivlinie getrennt zur Rohrwalzlinie angeordnet ist, läßt sich erfindungsgemäß eine einzige Linie für beide Zwecke nutzen, womit nicht nur die Investitionskosten wesentlich geringer sind, sondern auch die Betriebs- und Erhaltungskosten. Dem liegt die konsequente Ausschöpfung der 3-Walzentechnologie zugrunde, weil erkannt wurde, daß trotz der einander wiedersprechenden Anforderungen - beim Rohrwalzen wird zur Vermeidung von verfahrensbedingten Nachteilen der Außendurchmesser üblicherweise wenig verändert und die hohe Streckung entsteht aufgrund des zentralen Loches, während beim Massivwalzen eine große Durchmesserreduktion gewährleistet werden muß, um die erforderliche Streckung zu erreichen - ein universelles Walzen möglich ist. Dies weiterhin auch deshalb, weil gegenüber herkömmlichen Loch- Schrägwalzwerken mit 2-Walzen-Gerüsten in der Materialkernzone keine Zugspannungen auftreten, sondern Druckspannungen, was die Gefahr der Entstehung von Innenfehlern erheblich einschränkt. Das Spannungsverhalten im Walzgut beim Walzen in 2- oder 3-Walzen-Schrägwalzwerken wird ausführlich in "Herstellung von Rohren", Verlag Stahleisen 1975, S. 28 bis 31 beschrieben.While in the known rolling mill the solid line is arranged separately from the tube rolling line, according to the invention a single line can be used for both purposes, which not only reduces the investment costs, but also the operating and maintenance costs. This is based on the consequent exploitation of the 3-roll technology, because it was recognized that despite the contradicting requirements - with pipe rolling, the outer diameter is usually changed little to avoid procedural disadvantages and the high elongation arises due to the central hole, while with solid rolling a large one Reduction in diameter must be ensured in order to achieve the required stretching - universal rolling is possible. This is also because, compared to conventional hole cross-rolling mills with 2-roll stands, there are no tensile stresses in the material core zone, but compressive stresses, which creates the risk of occurrence considerably restricted by internal defects. The stress behavior in the rolling stock when rolling in 2- or 3-roll cross-rolling mills is described in detail in "Manufacture of tubes", Verlag Stahleisen 1975, pp. 28 to 31.
Beim Übergang von der einen auf die andere Walzart werden erfindungsgemäß für das Rohrwalzen und das Massivwalzen unterschiedliche Walzen vorgesehen, bei denen zwar aufgrund der angepaßten, unterschiedlichen Kalibrierung der Querschnitt verschieden ist, deren äußere Form aber gleichbleibend ist, so daß ein einfacher Austausch durchgeführt werden kann. Die konkrete Anzahl der 3- Walzen-Anordnungen bzw. -Gerüste in der Haupt-Streckstufe richtet sich dabei nach dem gewünschten Grad der Streckung, wobei die Stichabnahmen bzw. die Abnahmeverteilung bei Stabstahl von der beim Walzen von Rohren abweicht. Die hierfür zu treffenden, vom Einsatz- bzw. Hohlblock und den jeweiligen Materialeigenschaften abhängigen Maßnahmen sind bekannt.In the transition from one type of rolling to the other, different rolls are provided according to the invention for tube rolling and solid rolling, in which the cross-section is different due to the adapted, different calibration, but the outer shape is constant, so that a simple exchange can be carried out , The specific number of 3-roll arrangements or stands in the main stretching stage is based on the desired degree of stretching, the stitch decreases or the decrease distribution for steel bars differing from that when rolling pipes. The measures to be taken for this, which depend on the insert or hollow block and the respective material properties, are known.
Eine vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens sieht vor, daß auch für das der Hauptstreckstufe vorgeschaltete Lochwalzwerk ein 3-Walzen- Schrägwalzwerk verwendet wird, dessen Lochwalzen zum Massivwalzen mit entfernter Lochdornstange gegen bereitgestellte Stabstahlwalzen mit für eine Durchmesserreduktion kalibrierten Walzen ausgetauscht werden. Das bei einem Lochwalzwerk erfindungsgemäße 3-Walzen-Schrägwalzwerk ermöglicht dann bei zum Massivwalzen weggefahrener Lochdornstange die Herstellung von unterschiedlichen Stabstahldurchmessern im Sinne einer Vorreduktion, d.h. einer auf die Gesamtreduktion aller betätigten Walzwerke bezogenen anteilmäßigen Querschnittsreduktion. Auch das Lochschrägwalzwerk erfüllt damit eine universelle Funktion.An advantageous embodiment of the method according to the invention provides that a 3-roll cross-rolling mill is also used for the perforating mill upstream of the main stretching stage, the perforated rollers for solid rolling with removed piercing mandrel bar being exchanged for provided steel bar rollers with rollers calibrated for diameter reduction. The 3-roll cross-rolling mill according to the invention in a perforated rolling mill then enables the production of different bar steel diameters in the sense of a pre-reduction, i.e. with a piercing rod moved away for solid rolling. a proportional reduction in cross-section based on the total reduction of all operated rolling mills. The piercing mill also fulfills a universal function.
Eine Walzanlage zum Durchführen des Verfahrens weist erfindungsgemäß in der Hauptstreckstufe ein zur Aufnahme von Stabstahlwalzen oder Rohrwalzen ausgebildetes, mehrgerüstiges 3-Walzen-Kontiwalzwerk und eine Einrichtung zum Entfernen der Dornstange auf. Das Kontiwalzwerk bzw. die Hauptstreckstufe nimmt in einem Rahmen entweder die einen oder die anderen Gerüste bzw. Walzensätze, bestehend jeweils aus drei Walzen, auf. Zum Austausch können neben dem Kon- tiwalzwerk entsprechende Gerüste bereitgestellt werden, die dann nach dem Herausziehen der vorherigen Gerüste aus dem Rahmen in die Betriebsposition gebracht werden. Alternativ ist eine Kassetten-Bauweise oder auch das Austauschen nur der Walzen bei in dem Rahmen verbleibenden Gerüstgehäusen möglich. Die Dornstange läßt sich bei der Umrüstung des 3-Walzen-Kontiwalzwerkes zum Massivwalzen im einfachsten Fall unter Zuhilfenahme der Domstangenhaltevor- richtung in eine Außerbetriebsposition fahren. Das gilt ebenfalls für die Lochdomstange des der Hauptstreckstufe im Falle der Rohrwalzung optional vorgeschalteten Schrägwalzwerkes, das nach einer Ausgestaltung der Erfindung ebenfalls als ein universell einsetzbares 3-Walzen-Schrägwalzwerk ausgebildet ist.According to the invention, in the main stretching stage, a rolling mill for carrying out the method has a multi-stand 3-roll continuous rolling mill designed to hold steel bar rolls or tube rolls and a device for removing the mandrel bar. The continuous rolling mill or the main stretching stage takes on either the one or the other stands or sets of rolls, each consisting of three rolls, on a frame. Corresponding stands can be provided in addition to the continuous rolling mill, which can then be brought into the operating position after the previous stands have been pulled out of the frame. Alternatively, a cassette construction or the exchange of only the rollers with the scaffold housings remaining in the frame is possible. In the simplest case, the mandrel bar can be moved to a non-operating position with the aid of the dome bar holding device when converting the 3-roll continuous rolling mill to solid rolling. This also applies to the perforated dome rod of the cross-rolling mill optionally upstream of the main stretching stage, which according to one embodiment of the invention is also designed as a universally usable 3-roll cross-rolling mill.
Eine bevorzugte Ausführung der Erfindung sieht vor,, daß dem 3-Λ/Valzen- Kontiwalzwerk der Hauptstreckstufe eine Drehzahlregelung zugeordnet ist. Hiermit lassen sich vorteilhaft die beim Rohr- und Stabwalzen unterschiedlichen Walzgeschwindigkeiten verwirklichen.A preferred embodiment of the invention provides that a speed control is assigned to the 3 Λ / valve continuous rolling mill of the main stretching stage. This advantageously enables the different rolling speeds to be achieved in tube and bar rolling.
Wenn vorteilhaft das hinter dem Hauptstrecker angeordnete Ausziehwalzwerk zwei im Abstand voneinander angeordnete Gerüsteinheiten mit einer dazwischen einschiebbar vorgesehenen Endenschere aufweist, lassen sich beim Massivwalzen schlechte Enden in einfacher Weise vor dem Weiterwalzen abschneiden. Beim Rohrwalzen kann hingegen auf den Gebrauch der Schere verzichtet werden.If the pull-out rolling mill arranged behind the main stretcher advantageously has two stand units which are arranged at a distance from one another and have end shears which can be inserted between them, bad ends can be easily cut off before further rolling in solid rolling. On the other hand, the use of scissors is not necessary for tube rolling.
Dem Ausziehwalzwerk schließt sich vorteilhaft ein Nachwärmofen an. Von dort gelangen dann der wärmebehandelte Stabstahl oder z.B. legierte oder unlegierte Stahlrohre in das Fertigwalzwerk. Dieses kann ein Maßwalzwerk, ein Reduzierwalzwerk oder ein Streckreduzierwalzwerk oder eine Kombination dieser Aggregate umfassen. Wenn ein Stabstahl zu Draht ausgewalzt werden soll, ist erfindungsgemäß hinter dem Kühlbett ein zu dem Drahtblock führender Rollgang angeordnet.The pull-out rolling mill is advantageously followed by a reheating furnace. From there, the heat-treated steel bars or, for example, alloyed or unalloyed steel pipes reach the finishing mill. This can include a sizing mill, a reducing mill or a stretch-reducing mill or a combination of these units. If a steel bar is to be rolled into wire, a roller table leading to the wire block is arranged behind the cooling bed.
Weitere Einzelheiten der Erfindung ergeben sich aus der Ausführungs-Zeichnung, die in einer einzigen Figur in sehr schematischer Weise eine erfindungsgemäße Walzanlage in der Draufsicht zeigt.Further details of the invention result from the embodiment drawing, which shows in a single figure in a very schematic manner a rolling mill according to the invention in plan view.
Die in dem Anlagenschema dargestellte Universal-Walzanlage verarbeitet in einer Linie, d.h. abweichend von der zeichnerischen Darstellung schließt sich der in der unteren Figurenhälfte gezeigte Anlagenteil linear den Anlagenteilen der oberen Zeichnungshälfte an, was durch die geschlängelte Linie angedeutet wird, ein zugeführtes Vormaterial (Einsatzblock) entweder zu nahtlosen Rohren oder zu Stäben, Draht oder dergleichen Massivwalzgut.The universal rolling mill shown in the system diagram processes in one line, i.e. deviating from the drawing, the plant part shown in the lower half of the figure linearly joins the plant parts of the upper half of the drawing, which is indicated by the meandering line, an input material (insert block) either to seamless tubes or to bars, wire or similar solid rolled material.
In der Figur ist ein Ofen 1 mit einer Beschickungseinrichtung 2 für das zu walzende Vormaterial bzw. die Blöcke, z.B. aus Strangguß-Material, gezeigt, in dem Ofen werden die Blöcke auf Walztemperatur erwärmt. Im Ausführungsbeispiel wird von dort ein erwärmter Einsatzblock einem als 3-Walzen-Schrägwalzwerk 3 ausgebildeten Lochschrägwalzwerk zugeleitet, wo der Block in einer Einlaufrinne geführt und durch Aufwalzen auf eine mit einem Lochdorn versehene Dornstange zu einem Hohlblock als Vorbereitung für das sich anschließende Auswalzen zu einem nahtlosen Rohr verformt wird. Ein solches Schrägwalzwerk 3 in Dreiwalzenbauweise ist bei der Herstellung von Rohren bekannt. Wenn keine Rohre, sondern Stäbe oder Draht gewalzt werden sollen, findet in dem 3-Walzen-Schrägwalzwerk 3 bei zurückgehaltener bzw. aus der Walzlinie gebrachter Lochdornstange . ein Massivreduzieren des Blockes und Verdichten des Gefüges statt.In the figure is a furnace 1 with a loading device 2 for the raw material or blocks to be rolled, e.g. from continuous casting material, shown, in the furnace, the blocks are heated to rolling temperature. In the exemplary embodiment, a heated insert block is fed from there to a perforated cross-rolling mill designed as a 3-roll cross-rolling mill 3, where the block is guided in an inlet channel and rolled onto a mandrel bar provided with a piercing mandrel to form a hollow block in preparation for the subsequent rolling out to a seamless one Tube is deformed. Such a cross roll mill 3 in three-roll construction is known in the manufacture of pipes. If it is not pipes but rods or wire that are to be rolled, the 3-roll cross-rolling mill 3 is used with the mandrel rod held back or removed from the rolling line. massively reducing the block and compacting the structure instead.
Aus dem 3-Walzen-Schrägwalzwerk 3 erfolgt die Beschickung der Hohlblöcke oder der massiven Blöcke in die nachgeschalteten Walzeinrichtungen. Diese umfassen eine Hauptstreckstufe 4, die hier als ein 6-gerüstiges 3-Walzen- Kontiwalzwerk 5 ausgebildet ist. Es sind aber auch andere Gerüstzahlen möglich. Diesem folgt ein Auszieh-Walzwerk 6, das hier zwei im Abstand voneinander angeordnete Gerüsteinheiten 6a, 6b aufweist. Sowohl zwischen dem mehrgerüstigen 3-Walzen-Kontiwalzwerk 5 und dem Ausziehwalzwerk 6 als auch zwischen den beiden Gerüsteinheiten 6a, 6b des Ausziehwalzwerkes 6 sind einschiebbare Endenscheren 8, 9 vorgesehen.From the 3-roll cross-rolling mill 3, the hollow blocks or the solid blocks are loaded into the downstream rolling devices. These include a main drafting stage 4, which here as a 6-stand 3-roll Continuous rolling mill 5 is formed. However, other scaffolding numbers are also possible. This is followed by a pull-out rolling mill 6, which here has two stand units 6a, 6b arranged at a distance from one another. Insertable end shears 8, 9 are provided both between the multi-stand 3-roll continuous rolling mill 5 and the pull-out rolling mill 6 and between the two stand units 6a, 6b of the pull-out rolling mill 6.
Bei der Rohrherstellung wird in dem 6-gerüstigen 3-Walzen-Kontiwalzwerk 5 ein Hohlblock gestreckt und nach dem Herausziehen der Dornstange, was eine vor- und zurückfahrende Dornstangenhaltevorrichtung übernimmt, als Luppe in den beiden Gerüsteinheiten 6a, 6b des Ausziehwalzwerkes 6 reduziert, während beim Massivwalzen auch schon das 6-gerüstige 3-Walzen-Kontiwalzwerk 5 wie das Ausziehwalzwerk 6 den Stabstahl durch Verkleinerung des Durchmessers reduziert. Bevor die reduzierte Luppe oder der reduzierte Stabstahl in einem Maßbzw. Streckreduzierwalzwerk 10 zu einem Rohr bzw. einem Stab fertiggewalzt wird, wird das Walzgut in einem Nachwärmofen 11 auf die erforderliche Temperatur gebracht.During tube production, a hollow block is stretched in the 6-stand 3-roll continuous rolling mill 5 and, after pulling out the mandrel bar, which is carried out by a back and forth mandrel bar holding device, reduced as a slug in the two stand units 6a, 6b of the pull-out rolling mill 6, while at Solid rolling, even the 6-stand 3-roll continuous rolling mill 5, like the pull-out rolling mill 6, reduces the bar steel by reducing the diameter. Before the reduced blanks or the reduced steel bars in one dimension or Stretch-reducing mill 10 is finished rolled into a tube or a rod, the rolling stock is brought to the required temperature in a reheating furnace 11.
Eine auslaufseitig des Maß- bzw. Streckreduzierwalzwerkes 10 angeordnete Schopfsäge 12 unterteilt das fertige Rohr bzw. den fertiggewalzten Stabstahl in die gewünschten Längen. Die Fertiglängen werden danach auf ein Kühlbett 13 übergeleitet. Soll hingegen der Stabstahl zu Draht gewalzt werden, wird der Stabstahl über eine Verlängerung des Kühlbettrollgangs 14 einem Drahtblock 15 zugeführt.A cropping saw 12 arranged on the outlet side of the sizing or stretching reduction mill 10 divides the finished tube or the finished rolled steel bar into the desired lengths. The finished lengths are then transferred to a cooling bed 13. If, on the other hand, the bar steel is to be rolled into wire, the bar steel is fed to a wire block 15 via an extension of the cooling bed roller table 14.
Die beschriebene Universal-Walzanlage erlaubt es somit, in einer Linie sowohl nahtlose Rohre als auch Stäbe oder Draht zu walzen. Hierzu werden beim Massivwalzen in dem 6-gerüstigen 3-Walzen-Kontiwalzwerk 5 zuvor die mit einer Kalibrierung für die Rohrwalzung ausgelegten Walzen gegen für eine Massivwal- zung kalibrierte Walzen ausgetauscht und die Dornstange in eine Außerbe- triebsposition gebracht, z.B. indem die Dornstangenhalteeinrichtung in ihre zurückgezogene Ausgangsstellung gefahren wird. The universal rolling mill described thus allows seamless pipes as well as bars or wire to be rolled in one line. For this purpose, in the case of solid rolling in the 6-stand 3-roll continuous rolling mill 5, the rolls which have been calibrated for the pipe rolling are previously exchanged for rolls calibrated for a solid rolling and the mandrel rod is brought drive position, for example by moving the mandrel rod holding device into its retracted starting position.

Claims

Patentansprüche: claims:
1. Verfahren zum Herstellen von Draht, Stäben oder nahtlosen Rohren auf einer Walzanlage zum Walzen von erwärmtem metallischem Gut, umfassend in Walzrichtung gesehen optional ein Lochwalzwerk, ein mehrgerüsti- ges Streckwalzwerk als Hauptstreckstufe, ein Ausziehwalzwerk, ein Fertigwalzwerk und einen Drahtwalzblock sowie vor-, zwischen- oder nachgeschaltete Einrichtungen wie einen Vor- und einen Nachwärmofen, Rollgänge und ein Kühlbett, dadurch gekennzeichnet, daß in der Hauptstreckstufe (4) ein 3-Walzen-Kontiwalzwerk (3) verwendet und sowohl zum Lochwalzen bei der Rohrherstellung als auch zum Massivwalzen bei der Herstellung von Stäben, Draht oder dergleichen benutzt wird, wozu beim Massivwalzen eine zum Lochwalzen eingesetzte Dornstange in eine Außerbetriebsposition gebracht wird und bereitgestellte Stabstahl-Walzen mit für eine größere als beim Rohrwalzen üblichen Durchmesserreduktion kalibrierten Walzen gegen die für die Rohrwalzung kalibrierten Walzen ausgetauscht werden.1. Method for producing wire, rods or seamless tubes on a rolling mill for rolling heated metallic material, comprising optionally a perforated mill, viewed in the rolling direction, a multi-stand stretching mill as the main stretching stage, a pull-out mill, a finish rolling mill and a wire rolling block as well as Intermediate or downstream devices such as a preheating and post-heating furnace, roller tables and a cooling bed, characterized in that in the main stretching stage (4) a 3-roll continuous rolling mill (3) is used and both for hole rolling in pipe production and for solid rolling the production of bars, wire or the like is used, for which purpose a mandrel bar used for perforated rolling is brought into a non-operating position in the case of solid rolling and provided steel bar rolls with rolls calibrated for a larger diameter reduction than those used for pipe rolling are exchanged for the rolls calibrated for the pipe rolling the.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß auch für ein der Hauptstreckstufe (4) vorgeschaltetes Lochwalzwerk ein 3-Walzen-Kontiwalzwerk (3) verwendet wird, dessen Lochwalzen zum Massivwalzen mit entfernter Lochdornstange gegen bereitgestellte Stabstahlwalzen mit für eine beim Stabstahlwalzen üblichen Durchmesserreduktion kalibrierten Walzen ausgetauscht werden.2. The method according to claim 1, characterized in that a 3-roll continuous rolling mill (3) is also used for a perforating mill connected upstream of the main stretching stage (4), the perforated rolling of which for solid rolling with a removed mandrel bar against provided steel bar rolls with for a diameter reduction customary for bar steel rolling calibrated rollers can be replaced.
3. Walzanlage zum Walzen von erwärmtem metallischem Gut zu Draht, Stäben oder nahtlosen Rohren, umfassend in Walzrichtung gesehen optional ein Lochwalzwerk, ein mehrgerüstiges Streckwalzwerk als Hauptstreckstu- fe, ein Ausziehwalzwerk, ein Fertigwalzwerk und einen Drahtwalzblock sowie vor-, zwischen- oder nachgeschaltete Einrichtungen wie einen Vor- und einen Nachwärmofen, Rollgänge und ein Kühlbett, dadurch gekennzeichnet, daß die Hauptstreckstufe (4) ein zur Aufnahme von Stabstahlwalzen oder Rohrwalzen ausgebildetes, mehrgerüstiges 3-Walzen-Kontiwalzwerk (5) und eine Einrichtung (7) zum Entfernen der Dornstange aufweist.3. Rolling plant for rolling heated metallic material into wire, rods or seamless tubes, comprising optionally a perforated rolling mill when viewed in the rolling direction, a multi-stand stretching rolling mill as the main fe, a pull-out rolling mill, a finishing mill and a wire rolling block, as well as upstream, intermediate or downstream devices such as a preheating and a post-heating furnace, roller tables and a cooling bed, characterized in that the main stretching stage (4) is designed to accommodate bar steel rollers or tube rollers, Multi-stand 3-roll continuous rolling mill (5) and a device (7) for removing the mandrel bar.
4. Walzanlage nach Anspruch 3, dadurch gekennzeichnet, daß das der Hauptstreckstufe (4) vorgeschaltete Lochwalzwerk (3) als ein 2-Walzen-Schrägwalzwerk oder 3-Walzen-Schrägwalzwerk zur Aufnahme von Stabstahlwalzen oder Lochwalzen ausgebildet und mit einer Einrichtung zum Entfernen der Lochdornstange versehen ist.4. Rolling plant according to claim 3, characterized in that the upstream of the main stretching stage (4) perforated rolling mill (3) is designed as a 2-roll cross-rolling mill or 3-roll cross-rolling mill for receiving steel bars or perforated rolls and with a device for removing the piercing rod is provided.
5. Walzanlage nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß dem 3-Walzen-Kontiwalzwerk (5) der Hauptstreckstufe (4) eine Drehzahlregelung zugeordnet ist, die sowohl die beim Rohr- als auch beim Stabstahlwalzen üblichen Walzendrehzahlen regelt.5. Rolling plant according to claim 3 or 4, characterized in that the 3-roll continuous rolling mill (5) of the main stretching stage (4) is assigned a speed control which regulates both the roll speeds customary in tube and bar rolling.
6. Walzanlage nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß das Ausziehwalzwerk (6) zwei im Abstand voneinander angeordnete Gerüsteinheiten (6a, 6b) mit einer dazwischen einschiebbar vorgesehenen Endenschere (9) aufweist.6. Rolling plant according to one of claims 3 to 5, characterized in that the pull-out rolling mill (6) has two spaced-apart stand units (6a, 6b) with end shears (9) which can be inserted between them.
7. Walzanlage nach einem der Ansprüche 3 bis 6, gekennzeichnet durch einen dem Ausziehwalzwerk (6) folgenden Nachwärmofen (11 ). 7. Rolling plant according to one of claims 3 to 6, characterized by a retracting furnace (11) following the pull-out rolling mill (6).
8. Walzanlage nach einem der Ansprüche 3 bis 7, gekennzeichnet durch ein hinter dem Nachwärmofen (11 ) angeordnetes Maß- und/oder Streckreduzierwalzwerk als Fertigwalzwerk (10) für Rohre und Stabstahl.8. Rolling plant according to one of claims 3 to 7, characterized by a dimensioning and / or stretch-reducing mill arranged behind the reheating furnace (11) as a finishing mill (10) for pipes and steel bars.
9. Walzanlage nach einem der Ansprüche 3 bis 8, gekennzeichnet durch eine hinter dem Kühlbett (13) angeordnete, zu dem Drahtblock (15) führende Rollgangsverlängerung (14). 9. Rolling plant according to one of claims 3 to 8, characterized by a behind the cooling bed (13) arranged to the wire block (15) leading roller table extension (14).
EP03729229A 2002-01-09 2003-01-08 Method and rolling stand for producing rods, bar stock or seamless tubes Expired - Lifetime EP1463591B1 (en)

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DE10200581 2002-01-09
DE10200581 2002-01-09
DE10261632A DE10261632B4 (en) 2002-01-09 2002-12-27 Process and rolling plant for the production of wire, bars or seamless tubes
DE10261632 2002-12-27
PCT/EP2003/000090 WO2003057383A1 (en) 2002-01-09 2003-01-08 Method and rolling stand for producing rods, bar stock or seamless tubes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381554B2 (en) 2010-11-16 2016-07-05 Vallourec Deutschland Gmbh Method for producing seamless hot-rolled pipes in continuous pipe rolling mills

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008039454B4 (en) 2008-08-25 2011-01-27 Sms Meer Gmbh Method for producing a seamless steel tube and rolling mill for carrying out the method
IT1395593B1 (en) 2009-06-29 2012-10-16 Danieli Off Mecc LAMINATION PROCEDURE AND RELATIVE LONGITUDINAL MULTI CAGE LAMINATE SHEET OF CONTINUED AND CABLE TYPES FOR CABLE BODIES
ITMI20121559A1 (en) * 2012-09-19 2014-03-20 Sms Innse Spa IMPROVEMENT IN A LAMINATION PLANT
CN103231205B (en) * 2013-03-27 2015-08-05 山西太钢不锈钢股份有限公司 A kind of manufacture method of roller-way roller
JP6171851B2 (en) 2013-10-29 2017-08-02 Ｊｆｅスチール株式会社 Apparatus row for seamless steel pipe production and method for producing high-strength stainless steel seamless steel pipe for oil wells using the same
RU2586177C1 (en) * 2014-12-18 2016-06-10 Открытое акционерное общество "Российский научно-исследовательский институт трубной промышленности" (ОАО "РосНИТИ") Unit for production of seamless tubes
CN105080971B (en) * 2015-09-18 2017-08-25 神雾科技集团股份有限公司 The method for preparing titanium alloy seamless pipe
ES2699435A1 (en) 2017-09-05 2019-02-11 Eventos Andalucia 2020 S L Closed and autonomous circuit with currents and internal flows of fluids and bodies by Archimedes push with magnetic reinforcement for generation of mechanical and electrical energy and operating procedure (Machine-translation by Google Translate, not legally binding)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333390A1 (en) * 1983-09-13 1985-03-21 Mannesmann AG, 4000 Düsseldorf DEVICE FOR INLETING AND EXHAUSTING THE PISTON RODS ON SLOPED AND LONG ROLLING MILLS
DE3536046A1 (en) * 1985-10-09 1987-04-16 Kocks Technik METHOD, SYSTEM AND ROLLING MILL FOR THE PRODUCTION OF SEAMLESS TUBES
IT1254864B (en) * 1992-04-15 1995-10-11 Filippo Cattaneo CONTINUOUS ROLLING MACHINE FOR SEAMLESS-SPINDLE PIPES AND LAMINATION UNIT WITH THREE OR MORE COMMANDED AND ADJUSTABLE ROLLS
DE19935647C2 (en) * 1999-07-29 2003-10-09 Kocks Technik Process for rolling heated metallic material and plant for carrying out the process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03057383A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381554B2 (en) 2010-11-16 2016-07-05 Vallourec Deutschland Gmbh Method for producing seamless hot-rolled pipes in continuous pipe rolling mills

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BR0306683A (en) 2004-12-07
ATE296689T1 (en) 2005-06-15
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