EP0560093A1 - Laminoir à fers marchands et à fil d'acier - Google Patents

Laminoir à fers marchands et à fil d'acier Download PDF

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Publication number
EP0560093A1
EP0560093A1 EP93102528A EP93102528A EP0560093A1 EP 0560093 A1 EP0560093 A1 EP 0560093A1 EP 93102528 A EP93102528 A EP 93102528A EP 93102528 A EP93102528 A EP 93102528A EP 0560093 A1 EP0560093 A1 EP 0560093A1
Authority
EP
European Patent Office
Prior art keywords
block
finishing
rolling
mill
wire
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
EP93102528A
Other languages
German (de)
English (en)
Other versions
EP0560093B1 (fr
Inventor
Karl Keller
Paul Josef Dr. Mauk
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 Siemag AG
Saarstahl AG
Original Assignee
SMS Schloemann Siemag AG
Saarstahl AG
Schloemann Siemag AG
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 Schloemann Siemag AG, Saarstahl AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0560093A1 publication Critical patent/EP0560093A1/fr
Application granted granted Critical
Publication of EP0560093B1 publication Critical patent/EP0560093B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • 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
    • B21B2273/00—Path parameters
    • B21B2273/06—Threading
    • B21B2273/08—Threading-in or before threading-in
    • 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 high-performance fine steel / wire mill, each with a plurality of mill stands or rolling units having a roughing mill, at least one intermediate mill and with a subsequent finishing mill, in particular as a finishing mill for single-wire or multi-wire rolling of wire or rolling stock with a round cross-section made of stainless steel or other alloy steel.
  • Modern high-performance / fine steel / wire mills usually consist of a roughing mill, one or more intermediate mills and a finishing block for the rolling stock behind the furnace system.
  • the mill stands in Vorstrasse and Eisenstrasse are robustly built and designed for high rolling mill demands. They are driven individually, whereby the primary and main gears are housed in one housing to save space.
  • the rolling stock guides are largely designed as roller guides for the purpose of high surface quality.
  • the roll change takes place in the roughing mill by changing the roll sets via a pull-out device, in the intermediate mill by exchanging the complete stands with the crane.
  • compact stands with a horizontal / vertical arrangement of the rolls are preferably used in the intermediate line. These stands with their overhung roller shafts allow the use of highly wear-resistant roller materials for long caliber service lives.
  • a finish-rolling block is understood to mean rolling machines that consist of several, usually six to ten, mutually offset 90 ° rolling units, which are housed in a cassette in the rolling line, one behind the other, and which as rolling units are driven directly and together by a drive via a transfer case and two longitudinal shafts are driven. By eliminating spindles, vibrations on the drive parts are largely avoided despite the high speeds. This includes an important prerequisite for maintaining tight tolerances.
  • the individual roller units are usually arranged at 45 ° to the horizontal on the roller cassette and equipped with overhung rollers.
  • the rollers have a relatively small diameter; they are made of hard metal to increase the service life of the caliber or have hard metal rings made of tungsten carbide, for example.
  • a water cooling section with an integrated compensation section follows the finishing block.
  • the cooling zones can be controlled so that the required temperature profile in the rolling stock is achieved even at maximum rolling speed.
  • the rolling stock is air-cooled, for example, on a Stelmor system.
  • At the end of the Stelmor system there is an adjustable drop step with subsequent chain transport.
  • the wire windings enter the bundle chamber via the chain conveyor.
  • the bundles formed are placed on a hook conveyor via a tipping chair unloading station and from there they go into the binding machines and the dispatch.
  • the technological limits of the basic machine design quickly become apparent.
  • the goal of many existing plants, namely to increase throughput and improve the quality of the rolling stock, has so far usually been to replace entire plant parts and replace them with those of the most modern design. This required considerable investments from the plant operators.
  • Some existing rolling mills could be modernized in such a way that the plant is operated continuously at the highest speeds.
  • the high rolling speeds place the highest demands on the precision of all system parts, e.g. the response times of the hydraulic and pneumatic devices and the other mechanical units, e.g. for the cropping shears, which require the highest switching time accuracy.
  • the high speeds in the finishing roll block mean that the roller guides have extremely high speeds. Bearing damage can occur.
  • the bearings of the drive shafts in the finishing mill block are also subjected to maximum stress.
  • the object of the present invention is to increase the performance of existing fine steel / wire mills, which may already be operated in the technical limit areas, with little use of machinery and with reasonable investment outlay, i.e. increasing throughput, increasing the final rolling speed and further improving the structure and tolerances of the rolling stock.
  • a further at least two-stand post-rolling block is arranged downstream of the finishing roll block, and in that a tempering cooling and / or compensating device for the rolling stock is interposed between the finishing roll block and the finishing roll block is.
  • the proposed arrangement has several advantages with regard to existing wire mills: Because of the two additional stands, the total stitch reduction of the street can be increased, ie either a larger billet can be used as a semi-finished product or thinner finished dimensions can be produced. Rolling in the post-block is much cheaper than pulling the wire to smaller diameters in a wire drawing shop that follows the rolling mill. The final rolling speed can be increased if the speed level of the road remains unchanged. The number of single-core stitches is increased for multi-core roads.
  • the structure in the rolling stock can be influenced by targeted cooling before the last two passes in the roughing block.
  • finishing roll block and the subsequent rolling block connected to it are connected to one and the same drive unit.
  • the rigid drive connection of the finishing block and the finishing block guarantees the optimum forming performance on the individual stands of the rolling blocks. This eliminates the need for time-consuming power synchronization of the individual forming blocks.
  • At least one transmission gear is arranged between the finishing roll block and the drive unit on the one hand and between the finish rolling block and the drive unit on the other hand.
  • the fixed step-up transmission gear determines the take-off system of the finishing block; with the switchable transmission gear for the finishing block, this can be adapted to the outlet speeds of the finishing block, ie the finishing block can be optionally equipped with stands 2, 4, 6, 8, 10 of the finishing block be synchronized. In this way, the forming capacity of certain stands of the finishing block can be taken over by the stands of the finishing block.
  • the gear ratio of the gearbox for the roughing block is designed for a pass with a decrease of approximately between 22% and 19% or for a pass with a reduced decrease of approximately between 17% and 14% based on the rolling stock diameter . If the gear ratio of the switchable gear of the re-rolling block is set for a standard pass, the last outfeed stands of the finishing roll block can be opened and the stands of the re-rolling block can take over their forming work, whereby - as previously stated - a thermal intermediate treatment of the rolling stock that has a structural influence has taken place can.
  • the standard pass can be carried out in the finishing mill, while in the finishing mill there is a lower pass to the diameter of the rolling stock that is required by the end product. It is expedient that the rollers of the finishing block can be used at least partially in the finishing block. Since the finishing block set for a standard pass inspection can take over part of the forming capacity of the finishing block, it is particularly advantageous to provide the assembly / disassembly device on the finishing block in such a way that the rolls can easily be exchanged between the finishing block and the finishing block.
  • the finishing roll block is equipped with an arrangement for cooling and / or for temperature compensation of the material to be rolled. It is known from DE-OS 30 39 101 to divide a finished scale into similar scale sections, each scale section having a double stand with two rolling units arranged at 90 ° to one another and between the scale sections a cooling section with controllable cooling intensity and a temperature compensation section is arranged. If, however, according to the invention, the finishing roll block is provided with an arrangement for cooling and / or for temperature compensation of the rolling stock and this arrangement can be switched on or off as required, then the thermally influenced rolling of wire according to the inventive plant design can be influenced even better.
  • the water cooling section between the finishing mill and the finishing mill is supplemented by pre-cooling and temperature compensation in the finishing mill.
  • the latter measure saves time when cooling the core of the wire.
  • the cooling in the finishing roll block can be omitted and the tempering influence on the rolling stock can be completely relocated to the water cooling section.
  • the drive unit consists of a plurality of direct current motors connected in series and connected to one another with rigid couplings.
  • This has the advantage that the existing drive motors of the rolling mill only have to be supplemented by one or two drive motors which cover the additional power of the roughing block.
  • the distance between the finishing block and the finishing block, which is technologically caused by the cooling section, is bridged particularly favorably in this way, since only short shaft connections between the motors and the manual transmissions are required.
  • the drive unit consists of a synchronous motor, the connection between the gearbox and the finishing block and to the gearbox of the finishing block being made via gimbal shafts, if necessary.
  • This measure is particularly suitable for new wire rod construction projects.
  • it must be ensured that the technologically determined distance between the blocks is bridged with vibration-free output shafts. Nevertheless, the use of a single electric motor with great performance remains an economically advantageous solution.
  • the distance between the finishing roll block and the finishing roll block, including the gears be at least as large as the length that can be predetermined for the cooling and / or compensating device.
  • the optimal distance between the two billets is approx. 10 to 12 m. This distance is sufficient for the arrangement of a plurality of drive motors for the finishing block and the finishing block and also satisfies the technological condition which must be placed on the temperature-controlling cooling and / or compensating device for the rolling stock between the rolling blocks.
  • the invention also relates to a method for operating the generic fine steel / wire mill. It is proposed that before the tapping of the rolling stock in the first stand of the re-rolling block, the outlet stand of the finishing roll block is opened somewhat and the outlet speed of the rolling stock is slightly reduced and that after the tapping of the rolling stock in the re-rolling block, the outfeed stand of the finishing roll block is reset to the specified caliber opening. By opening the discharge stand of the finishing roll block, the tensile stress exerted on the roll core is increased so that a secure gripping of the wire rod is ensured in the post-rolling block even when the tapping is delayed. For this purpose, it is expedient if the outlet stand of the finishing block is opened by approximately 0.02 to 0.05 mm.
  • the gear transmission ratio of the finishing block and the finishing block be set so that a low tensile stress is exerted on the rolling stock between the rolling blocks.
  • the application of the low tensile stress makes possible when the wire is running Cross-sectional differences caught.
  • An advantageous development of the operating method provides that the pass removal system of the rolls of the finishing block can be continued on the rolls of the finishing block.
  • the use of the same pass removal system for the finishing block and finishing block ensures, among other things. the extensive interchangeability of the rolls from one roll block to the other roll block.
  • optimal thermally influenced rolling can be carried out, since between certain passes, there is a sufficiently long and easily controllable cooling and compensation section for the rolling stock between the rolling blocks and the material structure can be influenced even better.
  • the invention is described below using an exemplary embodiment for a fine steel / wire mill. This shows: a section of a rolling mill with a finishing mill, a cooling and compensation device and a roughing block.
  • the generic fine steel / wire mill generally consists of a preheating chamber in which the billets are preheated before they are heated to rolling temperature in a pusher furnace, for example. After a press water descaling, the billets get from the pusher furnace into a multi-stand roughing mill, in which the billet is reduced to a round cross-section. Crank cropping and chopping shears are usually installed after the roughing mill and are able to prepare the cropping end for the intermediate mill. The rolling vein passes through the intermediate line, in which several passes are taken. Subsequently, after the roller ends have been cropped again, the roll core passes into the finish-rolling block 1 shown schematically in FIG. 1.
  • the finishing mill 1 has ten swirl-free stand cassettes in a 45 ° arrangement.
  • the horizontal scaffold cassettes are given the reference numbers 2, 4, 6, 8 and 10.
  • the vertical stand cassettes are shown in a schematic top view as opposing rollers 3, 3 '.
  • the roller rings of the scaffold cassettes are made of hard metal and are mounted on the overhung roller shafts by oil hydraulics. The alignment of the rolling line is maintained by pressing the two-caliber rolling rings against a contact surface of the roller shaft. Axial adjustment is therefore not necessary.
  • the radial adjustment is carried out manually via an eccentric. All inlet fittings are optically adjusted for an exact scaffold inlet and also adjusted with a light optic during installation.
  • the finishing mill block 1 is connected to a transfer case 5, from which an output shaft 7 is laid to the horizontal stand cassettes and an output shaft 9 to the vertical stand cassettes.
  • the section of the fine steel / wire mill shown also shows a two-stand roughing block 11, the vertical stand cassette 11 'and the horizontal stand cassette 11''being arranged at a 90 ° angle to one another.
  • the finishing mill 1 and the finishing mill 11 are aligned with each other in the rolling line.
  • the roughing block 11 is connected to a gearbox 12, from which an output shaft 13 is guided to the horizontal stand cassette and an output shaft 14 to the vertical stand cassette.
  • the input shafts 15, 16 of the transfer case 5 or of the manual transmission 12 are directly coupled to three direct current motors 19, 19 ', 19''of the same design.
  • the DC motors are used to drive the finishing block and the finishing block.
  • a water box 17 for cooling the rolling stock and a compensation section 18 for temperature compensation of the rolling stock are provided between the transfer case 5 and the manual transmission 11.
  • the pre-rolled and cropped wire from the intermediate mill enters the finishing mill 1 and is reduced in a twist-free manner in the ten stand cassettes to, for example, 5.5 mm in diameter at a final rolling speed of about 85 m / sec.
  • the wire is then passed through the water tank 17, cooled in it and then passed through the temperature compensation section 18.
  • the temperature cooling and temperature compensation are controlled depending on the respective wire alloy and the desired quality profile. If necessary, the cooling / compensation arrangement of the finishing block 1 can be switched on.
  • the wire then passes into the roughing block 11 and is rolled out in two passes to a diameter of 5 mm or smaller. Then he arrives in the system units not shown in detail, such as the water cooling section, Stelmor system, bundle forming chamber, hook track, etc.
  • the outlet stand 10 of the finishing block 1 is opened by approximately 0.02 to 0.05 mm and the outlet speed is thus slightly reduced.
  • the train on the roll core is increased in such a way that a secure grip is guaranteed in the finishing block even when the tapping is delayed.
  • the discharge stand of the finishing stand is returned to the old value of the caliber setting.
  • the translation in the transfer case 5 and in the gearbox 12 for the finishing mill and the finishing mill is designed so that there is a slight train between the two blocks, which absorbs cross-sectional differences with the rolling core running. It should be noted that the finish rolling can be carried out with or without cooling the rolling stock in the water tank 17.
  • the re-rolling block 11 or its Gerütkassetten 11 'or 11'' can optionally be synchronized with the stand cassettes 2, 4, 6, 8 or 10 of the finishing rolling block 1, whereby a wire rod with different wire diameter can be produced as a finished product. Depending on requirements, this can lead to certain rolling rings being pulled off the finishing block 1 and being pulled onto the corresponding stand cassette of the finishing block 11.
  • a fine steel / wire mill becomes even more flexible in terms of its performance data, in particular with regard to its performance adaptation to different rolled product products and rolled material qualities, so that one can speak of an ideal solution to the task stated at the beginning.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP93102528A 1992-03-07 1993-02-18 Laminoir à fers marchands et à fil d'acier Expired - Lifetime EP0560093B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4207296A DE4207296A1 (de) 1992-03-07 1992-03-07 Feinstahl/drahtstrasse
DE4207296 1992-03-07

Publications (2)

Publication Number Publication Date
EP0560093A1 true EP0560093A1 (fr) 1993-09-15
EP0560093B1 EP0560093B1 (fr) 1997-07-16

Family

ID=6453502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102528A Expired - Lifetime EP0560093B1 (fr) 1992-03-07 1993-02-18 Laminoir à fers marchands et à fil d'acier

Country Status (5)

Country Link
US (2) US5406822A (fr)
EP (1) EP0560093B1 (fr)
JP (1) JP3357111B2 (fr)
AT (1) ATE155369T1 (fr)
DE (2) DE4207296A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788845A1 (fr) * 1996-02-12 1997-08-13 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé pour laminer des produits longs, et train de laminage pour la mise en oeuvre du procédé

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426930A1 (de) * 1994-07-29 1996-02-01 Schloemann Siemag Ag Feinstahlwalzwerk, insbesondere Drahtwalzwerk
CA2187720C (fr) * 1995-10-14 2005-06-14 Kohachiro Ohashi Appareil servant a fabriquer des fils et methode connexe
AU749715B2 (en) * 1996-02-12 2002-07-04 Danieli & C. Officine Meccaniche S.P.A. A rolling line
DE102006013921A1 (de) * 2006-03-25 2007-09-27 Sms Meer Gmbh Verfahren zum Walzen eines Drahts und Drahtstraße
CN101695716B (zh) * 2009-10-27 2011-08-10 夏仁和 一种金属轴向连轧机集体传动系统
US8365563B2 (en) * 2009-11-16 2013-02-05 Quad Engineering, Inc. Methods for reducing ridge buckles and annealing stickers in cold rolled strip and ridge-flattening skin pass mill
DE102021205429A1 (de) * 2021-05-28 2022-12-01 Sms Group Gmbh Anlage und Verfahren zur Herstellung von draht- und/oder stabförmigen Stählen
DE102021205431A1 (de) * 2021-05-28 2022-12-01 Sms Group Gmbh Anlage und Verfahren zur Herstellung von stabförmigen Stählen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903554A1 (de) * 1968-01-24 1969-08-28 Sumitomo Metal Ind Verfahren zur Herstellung von warmgewalztem Bandstahl
DE2437684A1 (de) * 1974-08-05 1976-02-26 Schloemann Siemag Ag Walzwerk zur herstellung von draht und rippenstahl
DE2920398A1 (de) * 1979-05-19 1980-11-20 Kocks Technik Walzblock zum warmwalzen von draht oder staeben
DE3039101A1 (de) * 1980-10-16 1982-05-13 Schloemann-Siemag AG, 4000 Düsseldorf Anordnung einer kontinuierlich arbeitenden feinstahl-drahtwalzstrasse zum auswalzen von draht oder rundquerschnitten aus edelstaehlen oder hochwertigen legierungen
EP0358917A2 (fr) * 1988-09-05 1990-03-21 Sms Schloemann-Siemag Aktiengesellschaft Procédé pour l'actionnement d'un laminoir à barres avec un parcours de refroidissement disposé en ligne de laminage pour le finissage thermodynamique et laminoir à barres pour la mise en oeuvre de ce procédé

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US1931912A (en) * 1930-04-08 1933-10-24 Aluminum Co Of America Method of forming aluminum
US2369730A (en) * 1942-06-12 1945-02-20 Gustaf L Fisk Method of rolling metal bars
JPS5147146B2 (fr) * 1972-09-06 1976-12-13
US3992915A (en) * 1975-04-21 1976-11-23 Birdsboro Corporation Rolling mill
LU84922A1 (fr) * 1983-07-18 1985-04-17 Centre Rech Metallurgique Procede et dispositifs de fabrication d'armatures a beton en acier sur train a fil a grande vitesse
US4607511A (en) * 1985-04-26 1986-08-26 Morgan Construction Company Tension prefinishing with sizing stands
DE3518925A1 (de) * 1985-05-25 1986-11-27 Kocks Technik Gmbh & Co, 4010 Hilden Verfahren zum kontrollierten stab- und drahtwalzen legierter staehle
US4665730A (en) * 1985-10-09 1987-05-19 Morgan Construction Company Method of controlling product tension in a rolling mill
US4793401A (en) * 1985-12-12 1988-12-27 Kawasaki Steel Corporation Method of producing thin steel sheets having an improved processability
DE3788996D1 (de) * 1986-10-20 1994-03-17 Schloemann Siemag Ag Fein- oder Mittelstahlstrasse.
AU596030B2 (en) * 1987-10-30 1990-04-12 Morgan Construction Company Sizing mill and method of rolling a round bar material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1903554A1 (de) * 1968-01-24 1969-08-28 Sumitomo Metal Ind Verfahren zur Herstellung von warmgewalztem Bandstahl
DE2437684A1 (de) * 1974-08-05 1976-02-26 Schloemann Siemag Ag Walzwerk zur herstellung von draht und rippenstahl
DE2920398A1 (de) * 1979-05-19 1980-11-20 Kocks Technik Walzblock zum warmwalzen von draht oder staeben
DE3039101A1 (de) * 1980-10-16 1982-05-13 Schloemann-Siemag AG, 4000 Düsseldorf Anordnung einer kontinuierlich arbeitenden feinstahl-drahtwalzstrasse zum auswalzen von draht oder rundquerschnitten aus edelstaehlen oder hochwertigen legierungen
EP0358917A2 (fr) * 1988-09-05 1990-03-21 Sms Schloemann-Siemag Aktiengesellschaft Procédé pour l'actionnement d'un laminoir à barres avec un parcours de refroidissement disposé en ligne de laminage pour le finissage thermodynamique et laminoir à barres pour la mise en oeuvre de ce procédé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788845A1 (fr) * 1996-02-12 1997-08-13 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé pour laminer des produits longs, et train de laminage pour la mise en oeuvre du procédé
US5862699A (en) * 1996-02-12 1999-01-26 Danieli & C. Officine Meccaniche Spa Method for the rolling of long products and rolling line which performs that method

Also Published As

Publication number Publication date
EP0560093B1 (fr) 1997-07-16
DE4207296A1 (de) 1993-09-09
JPH05337501A (ja) 1993-12-21
US5406822A (en) 1995-04-18
ATE155369T1 (de) 1997-08-15
DE59306906D1 (de) 1997-08-21
JP3357111B2 (ja) 2002-12-16
US5421183A (en) 1995-06-06

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