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EP1764167A1 - Procédé et laminoir pour la fabrication d'un tube sans soudure - Google Patents

Procédé et laminoir pour la fabrication d'un tube sans soudure Download PDF

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Publication number
EP1764167A1
EP1764167A1 EP06013879A EP06013879A EP1764167A1 EP 1764167 A1 EP1764167 A1 EP 1764167A1 EP 06013879 A EP06013879 A EP 06013879A EP 06013879 A EP06013879 A EP 06013879A EP 1764167 A1 EP1764167 A1 EP 1764167A1
Authority
EP
European Patent Office
Prior art keywords
billet
rolling
mill
rolling mill
mandrel
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
EP06013879A
Other languages
German (de)
English (en)
Other versions
EP1764167B1 (fr
Inventor
Thomas Leisten
Peter Thieven
Guiseppe Vigo
Walter Höffgen
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
Application filed by SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1764167A1 publication Critical patent/EP1764167A1/fr
Application granted granted Critical
Publication of EP1764167B1 publication Critical patent/EP1764167B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • 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
    • B21B25/02—Guides, supports, or abutments for mandrels, e.g. carriages or steadiers; Adjusting devices for mandrels
    • 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
    • B21B25/04—Cooling or lubricating mandrels during operation

Definitions

  • the invention relates to a method for producing a seamless tube, in which first material is formed in a piercing mill to form a hollow block, in which then in a continuous rolling of the recorded on a mandrel hollow block is rolled into a billet and wherein subsequently after the removal of the mandrel bar the billet is calibrated in a sizing mill to the desired outside diameter. Furthermore, the invention relates to a rolling mill for producing a seamless tube.
  • the raw material used is usually rolled round steel, mainly as round casting up to 350 millimeters in diameter, which is brought in lengths up to 5 meters in a rotary hearth furnace 12 to a rolling temperature of about 1280 ° C.
  • the solid block is punched on a piercing mill 1 to form a thin-walled hollow block 2.
  • a cross-rolling mill is usually used as the piercing mill.
  • the rollers are inclined to achieve a sufficient throughput by an angle between 10 ° and 12 ° to the rolling stock.
  • the hollow block 2 produced in the piercing mill 1 is then rolled in the same heat in the continuous rolling mill 3 via a mandrel bar 4 to the billet 5. It is achieved up to a fourfold extension, ie it comes to a reduction in cross section up to 75%.
  • the continuous rolling mill is also referred to as MPM (Multistand Plug Mill).
  • the continuous rolling mill 3 consists mostly of six to nine closely spaced rolling stands, of which three are provided with the reference numerals 9, 10 and 11.
  • the individual rolling stands are each rotated against each other, for example by 90 °.
  • the roller circumferential speeds are coordinated according to the cross-sectional decreases, so that between the stands no significant tensile or compressive forces act on the rolling stock.
  • the mandrel rod 4 is inserted or threaded into the hollow block 2 with the retainer arranged on the inlet side. After reaching a certain position hollow block 2 and mandrel 4 are then pushed into the continuous rolling mill 3.
  • the rolling stock is detected by the rollers and rolled by the rolling from stand to frame smaller rolling caliber on the mandrel 4.
  • the mandrel 4 is moved by means of a retainer at a constant speed.
  • the Luppenspitze runs into a continuous rolling mill 13 downstream of the continuous rolling mill 3 a.
  • a game between the mandrel 4 and the rolling stock is achieved, which is evenly distributed in the last round caliber around the circumference, so that the mandrel bar 4 can be solved more easily.
  • the retraction of the mandrel bar in the starting position an ejection of the rod and the insertion of a new rod.
  • a mandrel bar circuit is required.
  • about five to ten mandrel bars of the same dimensions are in circulation.
  • the billet 5 After removal of the mandrel bar 4 from the rolled billet 5, the billet 5 is conveyed to a furnace 7 where the billet is given a uniform temperature before being rolled in a further downstream sizing mill 6 to the final, desired outside diameter.
  • the previously known solutions are preferably designed for high annual capacities in pipe production and go hand in hand with high investment costs. Therefore, the known systems are from an economic point of view bad for low capacity.
  • a disadvantage of this known method that a relatively large investment is required. There must be a sufficient distance between the last MPM mill stand and the first extractor rolling stand, which results from the need to extract the billet from the mandrel bar with the extractor mill.
  • the extractor mill represents a hitherto necessary additional forming unit.
  • a corresponding tool storage (mandrel bars) for the required rod cycle is required, which also requires a correspondingly complex monitoring and maintenance of the tools.
  • For bar cooling an extensive mandrel bar cooling system with several cooling stations and transport facilities over the rack bed of the retainer is necessary. Overall, there is a large and therefore expensive rod park. Particularly disadvantageous are thus the complex rod park and the high expense that must be driven in connection with the extractor mill.
  • the disadvantages mentioned are particularly significant when only small annual production quantities of seamless pipes are to be produced.
  • the invention is therefore based on the object to provide a method for producing seamless pipes and an associated rolling mill, with or with which the mentioned disadvantages are avoided. It should in particular a Reduction of the rod park and thus a more cost-effective production of seamless pipes are possible, especially in plants with relatively low production capacity. Furthermore, a simpler and thus cheaper construction of the rolling mill is to be made possible.
  • the solution of this problem by the invention according to the method is characterized in that the billet is spent without the interposition of another rolling mill, in particular an extraction mill, directly from the continuous rolling mill, optionally through an oven, in the sizing mill, wherein before entering the billet in the sizing mill the mandrel bar is removed from the billet.
  • another rolling mill in particular an extraction mill, directly from the continuous rolling mill, optionally through an oven, in the sizing mill, wherein before entering the billet in the sizing mill the mandrel bar is removed from the billet.
  • a first special embodiment provides that the mandrel bar is moved in the rolling direction during rolling in the continuous rolling mill and that after completion of the rolling process of the billet in the continuous rolling mill, the mandrel bar is pulled out of the billet with the billet restrained against the rolling direction.
  • An alternative provides that the mandrel during the rolling in the continuous rolling is controlled moves against the rolling direction, so that it is at least largely, preferably completely moved out of the billet after completion of the rolling process of the billet in the continuous rolling mill.
  • the mandrel bar is cooled during the rolling process in the continuous rolling mill.
  • the rolling mill for producing a seamless tube has a piercing mill, with the starting material can be converted into a hollow block, also a continuous rolling mill, in which the recorded on a mandrel hollow block can be rolled into a billet, and finally a sizing mill, on the after Removal of the mandrel bar from the billet can be calibrated to the desired outside diameter.
  • the sizing mill follows without rolling mill, in particular without an extraction mill, in the rolling direction to the continuous rolling mill.
  • a furnace in particular an induction furnace, is advantageously arranged between the continuous rolling mill and the sizing mill for tempering the billet.
  • a chain cross transport can be used to compensate for the lupine temperature over the circumference and length.
  • movement means can be provided, with which the mandrel rod can be moved during rolling in the continuous rolling mill in or counter to the rolling direction.
  • a retaining device can be arranged between the continuous rolling mill and the sizing mill with which the billet can be retained against the rolling direction.
  • the said movement means may be suitable for oscillating movement of the mandrel bar in the rolling direction.
  • the cooling means may comprise line elements with which a cooling medium can be conducted into an inner bore extending over a predetermined axial extension in the mandrel rod.
  • the outer surface of the mandrel bar can be provided with a layer of wear-resistant material, in particular of ceramic material.
  • the individual rolling stands of the continuous rolling mill are designed as 3-roll stands.
  • the mandrel bar may have a slightly conical shape over its axial course, which favors the withdrawal of the mandrel bar from the finished billet.
  • the rod park can be minimized, with a reduction of the rod park can be achieved by at least two-thirds. Furthermore, significantly lower investment costs compared to conventional methods are needed.
  • the extractor mill can be omitted. As a result, a hall length of about 10 meters can be saved. Even a mandrel bar cycle can be omitted.
  • Another advantage is the associated reduced personnel costs due to the omission of an aggregate. Furthermore, it is due to less disturbances of the rolling mill. It is finally an improved monitoring of the wall thickness tolerances of the tube and the tube quality possible because only one mandrel per dimension must be checked for wear and surface defects.
  • Fig. 1 an embodiment is shown as known in the art; Reference is made to the explanations made at the outset.
  • Fig. 2 shows the embodiment according to the invention, wherein otherwise the constant elements of the rolling mill are constructed accordingly, so that in this respect reference is made to the above explanations.
  • FIG. 3 A first possibility of rolling the hollow block 2 to the billet 5 in the continuous rolling mill 3 is shown schematically in Fig. 3, wherein the position of the hollow block 2, the mandrel 4 and the billet 5 is shown at four consecutive times, namely at an initial time t A , at a later time t 1 , at an even later time t 2 and at the still later end time t E.
  • the mandrel bar 4 is inserted into the hollow block 2, wherein the tip of the mandrel bar 4 as viewed in the rolling direction W is located within the continuous rolling mill 3.
  • the hollow block is still in front of the roll stand 9.
  • the mandrel 4 together with the hollow block 2 is pushed in the rolling direction W in the continuous rolling mill 3.
  • the mandrel 4 thereby moves preferably at a constant speed v mandrel in the rolling direction W, s. Times t 1 and t 2 .
  • the billet 5 moves as a result of the decrease in cross section with a higher speed v doll through the continuous rolling mill 3 in the rolling direction.
  • the controlled movement of the mandrel 4 is caused by moving means, which are not shown in the figure.
  • the mandrel 4 When the end of the Luppen has left the Kontiwalzwerk, the mandrel 4 is still moved a short distance. Subsequently, a restraint device 8 is raised in the form of a fork between the last stand and the end of the roll, which tightly encloses the mandrel bar 4 except for a small gap. Then, the mandrel 4 is retracted by the retainer (not shown) against the rolling direction W and the billet 5 thus deducted from the rod.
  • the lubrication of the mandrel is done before threading the rod in the hollow block in the rolling line.
  • the billet runs over the furnace 7 directly into the sizing mill 6 (reducing mill) to produce the finished pipe dimensions.
  • the sizing mill 6 reducing mill
  • FIG. 4 Shown are the layers of hollow block, mandrel bar and billet at three consecutive times t A , t 1 and t E.
  • the mandrel 4 is threaded into the hollow block 2. Then, the hollow block 2 together with mandrel 4 is positioned as it can be seen in the upper part of Fig. 4 at time t A , so with a large template in the continuous mill 3.
  • the hollow block 2 is then rolled to the billet 5, wherein due to the movement the rolls of the stands 9, 10, 11, the billet 5 is conveyed in the rolling direction W. Meanwhile, the mandrel 4 is moved counter to the rolling direction W; it is preferably withdrawn at a constant speed v mandrel . At the end of rolling, the remaining length of the mandrel bar 4 in the billet 5 is minimized, and the necessary residual pull-out force can be applied by the following conveyor roller bar (not shown).
  • FIG. Another alternative solution is outlined in FIG. Again, the layers of hollow block, mandrel and billet are shown at three consecutive times t A , t 1 and t E.
  • the mandrel 4 together with threaded hollow block 2 are first positioned according to the upper partial figure before the rolling process begins.
  • the hollow block 2 is pushed in the inlet of the continuous rolling mill 3 on the fixedly positioned mandrel 4, which is then locked with a pivotable abutment, not shown.
  • the mandrel 4 is not or almost not moved, so that the hollow block 2 is rolled off during the transformation to the billet 5 of the mandrel bar 4.
  • the billet 5 has no contact with the mandrel 4.
  • the mandrel bar 4 is provided in the region of the forming zones under the rolls of the rolling stands with a wear-resistant material, for example with ceramic inserts.
  • the mandrel 4 can perform a small oscillating movement during the rolling process to avoid partial overheating in the working zone.
  • the mandrel 4 is subjected to continuous cooling during the rolling process in the continuous rolling mill 3. This is also possible with the displaceable arrangement of the mandrel bar 4 if, for example, via a cable towing device, a cooling channel running inside the mandrel bar 4 is supplied with coolant.
  • a further development provides a conical mandrel 4, which facilitates the removal or rolling of the billet 5 of the mandrel bar 4.
  • a conical mandrel 4 which facilitates the removal or rolling of the billet 5 of the mandrel bar 4.
  • three-roll mills are also provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Steel (AREA)
EP06013879A 2005-09-20 2006-07-04 Procédé et laminoir pour la fabrication d'un tube sans soudure Not-in-force EP1764167B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005044777A DE102005044777A1 (de) 2005-09-20 2005-09-20 Verfahren und Walzwerk zur Herstellung eines nahtlosen Rohres

Publications (2)

Publication Number Publication Date
EP1764167A1 true EP1764167A1 (fr) 2007-03-21
EP1764167B1 EP1764167B1 (fr) 2009-09-16

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Country Status (3)

Country Link
EP (1) EP1764167B1 (fr)
AT (1) ATE442917T1 (fr)
DE (2) DE102005044777A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2042247A1 (fr) * 2007-09-25 2009-04-01 SMS Meer GmbH Poinçon
EP2067542A1 (fr) * 2007-12-07 2009-06-10 SMS Meer GmbH Procédé et laminoir destinés à fabriquer des tuyaux en acier sans soudure
WO2010025790A1 (fr) * 2008-08-25 2010-03-11 Sms Meer Gmbh Procédé pour produire un tube d'acier sans soudure et laminoir utilisé pour la mise en oeuvre du procédé
RU2401708C2 (ru) * 2007-12-07 2010-10-20 Смс Меер Гмбх Способ и прокатный стан для изготовления бесшовных стальных труб
ITMI20091143A1 (it) * 2009-06-29 2010-12-30 Danieli Off Mecc Procedimento di laminazione e relativo laminatoio longitudinale multi gabbia di tipo trattenuto e continuo per corpi cavi
WO2011107214A1 (fr) * 2010-03-02 2011-09-09 Sms Meer Gmbh Outil d'usinage à chaud et procédé de fabrication
WO2011083101A3 (fr) * 2010-01-07 2011-09-22 New Seamless Tube Technology Corp. Laminage à chaud de tubes métalliques sans soudure sur un laminoir continu à mandrin fixe
DE102013002268A1 (de) 2013-02-12 2014-08-14 Sms Meer Gmbh Walzanlage bzw. -verfahren
ITMI20130628A1 (it) * 2013-04-17 2014-10-18 Danieli Off Mecc Laminatoio integrato per tubi senza saldatura a laminazione trasversale
US9381554B2 (en) 2010-11-16 2016-07-05 Vallourec Deutschland Gmbh Method for producing seamless hot-rolled pipes in continuous pipe rolling mills
RU2652667C2 (ru) * 2012-11-03 2018-04-28 Ханс Йоахим ПЕЛЕ Способ и устройство для изготовления бесшовных стальных труб с малым эксцентриситетом
EP3365119B1 (fr) 2015-10-23 2020-01-01 Danieli & C. Officine Meccaniche S.p.A. Laminoir à cages multiples pour des corps en forme de tige comprenant trois cages à rouleaux motorisés

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20110372A1 (it) * 2011-03-10 2012-09-11 Danieli Off Mecc Processo di laminazione per tubi in laminatoio continuo multigabbia
EP3872555A1 (fr) 2020-02-25 2021-09-01 Leica Instruments (Singapore) Pte. Ltd. Support et module de microscope et boîtier correspondant

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DE2409870A1 (de) * 1973-03-02 1974-09-12 Sumitomo Metal Ind Verfahren zur dickensteuerung beim rohrwalzen
JPS58119416A (ja) * 1982-01-11 1983-07-15 Kawasaki Steel Corp 継目無管の肉厚制御方法
WO1991001824A1 (fr) * 1989-08-03 1991-02-21 Tubemill S.A. Dispositif elongateur-egalisateur de corps creux ronds destines a la fabrication de tubes sans soudure
EP0601932A1 (fr) * 1992-12-11 1994-06-15 Sumitomo Chemical Company, Limited Procédé et dispositif pour allonger des tubes en métal au moyen d'un laminoir à mandrin
DE10261632A1 (de) * 2002-01-09 2003-10-16 Sms Meer Gmbh Verfahren und Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen Rohren

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JPS58163507A (ja) * 1982-03-25 1983-09-28 Nippon Kokan Kk <Nkk> バ−拘束式マンドレル圧延機の入口テ−ブル
DE3622678A1 (de) * 1985-07-12 1987-01-15 Kocks Technik Verfahren und vorrichtung zum querwalzen nahtloser rohrluppen
JP2897652B2 (ja) * 1994-09-05 1999-05-31 住友金属工業株式会社 マンドレルミルおよびそれを用いた管圧延方法
JPH10180315A (ja) * 1996-12-27 1998-07-07 Kawasaki Steel Corp 継目無鋼管圧延用プラグおよび継目無鋼管の製造方法
DE10316910B3 (de) * 2003-04-12 2004-09-02 Sms Meer Gmbh Verfahren zur Herstellung von Rohren aus metallischem Werkstoff

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2409870A1 (de) * 1973-03-02 1974-09-12 Sumitomo Metal Ind Verfahren zur dickensteuerung beim rohrwalzen
JPS58119416A (ja) * 1982-01-11 1983-07-15 Kawasaki Steel Corp 継目無管の肉厚制御方法
WO1991001824A1 (fr) * 1989-08-03 1991-02-21 Tubemill S.A. Dispositif elongateur-egalisateur de corps creux ronds destines a la fabrication de tubes sans soudure
EP0601932A1 (fr) * 1992-12-11 1994-06-15 Sumitomo Chemical Company, Limited Procédé et dispositif pour allonger des tubes en métal au moyen d'un laminoir à mandrin
DE10261632A1 (de) * 2002-01-09 2003-10-16 Sms Meer Gmbh Verfahren und Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen Rohren

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2042247A1 (fr) * 2007-09-25 2009-04-01 SMS Meer GmbH Poinçon
EP2067542A1 (fr) * 2007-12-07 2009-06-10 SMS Meer GmbH Procédé et laminoir destinés à fabriquer des tuyaux en acier sans soudure
RU2401708C2 (ru) * 2007-12-07 2010-10-20 Смс Меер Гмбх Способ и прокатный стан для изготовления бесшовных стальных труб
CN101842170B (zh) * 2008-08-25 2012-08-15 Sms米尔股份有限公司 用于制造无缝钢管的方法和用于实施该方法的轧机
WO2010025790A1 (fr) * 2008-08-25 2010-03-11 Sms Meer Gmbh Procédé pour produire un tube d'acier sans soudure et laminoir utilisé pour la mise en oeuvre du procédé
US8904839B2 (en) 2008-08-25 2014-12-09 Sms Meer Gmbh Method of and rolling mill for making seamless steel pipe
US8429945B2 (en) 2009-06-29 2013-04-30 Danieli & C. Officine Meccaniche S.P.A. Rolling process and relating longitudinal, multi-stand rolling mill of continuous, restrained type for hollow bodies
RU2500491C2 (ru) * 2009-06-29 2013-12-10 Даньели Энд К. Оффичине Мекканике С.П.А. Способ прокатки и продольный многоклетьевой прокатный стан с удержанием оправки для непрерывной прокатки полых заготовок
WO2011000819A3 (fr) * 2009-06-29 2011-03-24 Danieli & C. Officine Meccaniche S.P.A. Procédé de laminage et laminoir longitudinal correspondant à cages multiples de type continu et retenu pour corps creux
ITMI20091143A1 (it) * 2009-06-29 2010-12-30 Danieli Off Mecc Procedimento di laminazione e relativo laminatoio longitudinale multi gabbia di tipo trattenuto e continuo per corpi cavi
WO2011083101A3 (fr) * 2010-01-07 2011-09-22 New Seamless Tube Technology Corp. Laminage à chaud de tubes métalliques sans soudure sur un laminoir continu à mandrin fixe
WO2011107214A1 (fr) * 2010-03-02 2011-09-09 Sms Meer Gmbh Outil d'usinage à chaud et procédé de fabrication
KR101469516B1 (ko) * 2010-03-02 2014-12-09 카짐 세린 열간 가공 공구의 제조 방법
US9381554B2 (en) 2010-11-16 2016-07-05 Vallourec Deutschland Gmbh Method for producing seamless hot-rolled pipes in continuous pipe rolling mills
RU2652667C2 (ru) * 2012-11-03 2018-04-28 Ханс Йоахим ПЕЛЕ Способ и устройство для изготовления бесшовных стальных труб с малым эксцентриситетом
RU2597189C2 (ru) * 2013-02-12 2016-09-10 СМС Меер ГмбХ, Прокатный стан и способ прокатки
US9789522B2 (en) 2013-02-12 2017-10-17 Sms Group Gmbh Rolling mill and rolling method
DE102013002268B4 (de) * 2013-02-12 2018-04-05 Sms Group Gmbh Walzanlage bzw. -verfahren
DE102013002268A1 (de) 2013-02-12 2014-08-14 Sms Meer Gmbh Walzanlage bzw. -verfahren
CN105188974A (zh) * 2013-04-17 2015-12-23 丹尼尔和科菲森梅克尼齐有限公司 用于无缝管的集成横轧机
WO2014170857A1 (fr) 2013-04-17 2014-10-23 Danieli & C. Officine Meccaniche S.P.A. Laminoir transversal intégré pour tubes sans soudure
ITMI20130628A1 (it) * 2013-04-17 2014-10-18 Danieli Off Mecc Laminatoio integrato per tubi senza saldatura a laminazione trasversale
CN105188974B (zh) * 2013-04-17 2017-03-15 丹尼尔和科菲森梅克尼齐有限公司 用于无缝管的集成横轧机
US10166581B2 (en) 2013-04-17 2019-01-01 Danieli & C. Officine Meccaniche S.P.A. Integrated transverse rolling mill for seamless tubes
EP3365119B1 (fr) 2015-10-23 2020-01-01 Danieli & C. Officine Meccaniche S.p.A. Laminoir à cages multiples pour des corps en forme de tige comprenant trois cages à rouleaux motorisés

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DE502006004843D1 (de) 2009-10-29
DE102005044777A1 (de) 2007-03-29
EP1764167B1 (fr) 2009-09-16
ATE442917T1 (de) 2009-10-15

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