EP0560093B1 - 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
EP0560093B1
EP0560093B1 EP93102528A EP93102528A EP0560093B1 EP 0560093 B1 EP0560093 B1 EP 0560093B1 EP 93102528 A EP93102528 A EP 93102528A EP 93102528 A EP93102528 A EP 93102528A EP 0560093 B1 EP0560093 B1 EP 0560093B1
Authority
EP
European Patent Office
Prior art keywords
block
roll
finishing
rolling
stock
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.)
Expired - Lifetime
Application number
EP93102528A
Other languages
German (de)
English (en)
Other versions
EP0560093A1 (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 method for the single-wire or multi-wire rolling of wire or rolled material with a round cross-section made of stainless steel or other alloy steel in a high-performance / fine steel / wire mill, each with a plurality of mill stands or rolling units, a roughing mill, at least one intermediate mill and with a finishing roll block, whereby the finishing roll block is followed by a further at least two-stand finishing roll block and a tempering cooling and / or compensating device for the rolling stock is interposed between the finishing roll block and the finish rolling block.
  • a method can be found in EP-A-0 512 735. This copy falls under Art 54 (3) EPC.
  • 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 Vor pose and Bacieri are robustly built and designed for high rolling mill demands. They are driven individually, whereby the primary and main gears are housed in a space-saving housing.
  • 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 a crane.
  • Compact stands are preferably used in the intermediate line to reduce the rolling stock tolerances and to increase operational reliability and to increase the throughput used with a horizontal / vertical arrangement of the rollers.
  • the stands with their overhung roller shafts allow the use of highly wear-resistant roller materials for long tool life.
  • a finishing 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 caliber, or they have hard metal rings made of tungsten carbide, for example. This means that the calibers remain true to shape and allow long service lives.
  • a hydraulic device is used to pull the roller rings on and off within a few minutes. Modern finishing blocks work at final roll speeds of up to 100 m / sec or more. This is an important prerequisite for an efficient and fully continuous rolling mill.
  • 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.
  • the Stelmor system At the end of the Stelmor system there is an adjustable drop step with subsequent chain transport.
  • the wire turns run over the chain transport in the Bundsentehunt.
  • 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 into the dispatch department.
  • 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 generally 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 mill 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.
  • a high-performance wire mill is known from EP-A-0 512 735, which is to be observed with regard to Article 54, Paragraph 3 and Paragraph 4 EPC, with a roughing mill, each with several mill stands or rolling units, with at least one intermediate mill and with a subsequent finishing train. The finishing mill is followed by another at least two-stand finishing mill.
  • a tempering cooling device for the rolling stock is interposed between the finishing train and the roughing block. This arrangement is intended to improve the microstructure in the finished rolled Rolled material and thermomechanical rolling serve at a slightly lower temperature.
  • DE-A-29 20 398 is concerned with a rolling block for hot rolling wire or rods, a larger distance being provided at least at one point of the rolling block between the roll stands and a cooling section for the rolling stock being arranged there.
  • the rolling block provided with a cooling section is provided for finish rolling the rolling stock.
  • the arrangement of the cooling section between the rolling stands should also be applicable to preliminary and intermediate blocks.
  • 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.
  • the gear ratio of the finished rolling block and the finishing block be set so that a low tensile stress is exerted on the rolling stock between the rolling blocks.
  • the stitch removal system of the rolls of the finishing block can be continued with 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 billet to the other billet.
  • 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 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.
  • the billets come out of the pusher furnace after descaling the press water 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. Then, after the roller ends have been cropped again, the roll core enters the finish-rolling block 1 shown schematically in FIG.
  • the finishing mill 1 has ten swirl-free stand cassettes in a 45 ° arrangement.
  • the horizontal scaffold cassettes are provided with the reference numbers 2, 4, 6, 8 and 10.
  • the vertical stand cassettes are shown in a schematic plan view as opposing rollers 3, 3 '.
  • the rolling 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 manual transmission 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 identical performance.
  • 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 the temperature compensation are regulated depending on the 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 arrives in 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, 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 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 take place in the water box 17 with or without cooling the rolling stock.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Claims (4)

  1. Procédé pour le laminage à une ou plusieurs voies de fils ou de produits laminés de section circulaire, en acier inoxydable ou autre alliage d'acier, dans un train à fil pour aciers fins, à capacité élevée, qui comporte un train de prélaminage, au moins un train de laminage intermédiaire et un bloc de finition (1), comportant chaque fois plusieurs cages ou unités de laminage, un bloc de postlaminage (11) comportant au moins deux cages étant agencé en aval du bloc de finition (1) et un dispositif de refroidissement et/ou de compensation de température (17,18) équilibrant la température du produit laminé étant agencé entre le bloc de finition (1) et le bloc de postlaminage (11), procédé dans lequel on ouvre légèrement la cage finale (10) du bloc de finition (1) avant la passe initiale du produit laminé dans la première cage (11') du bloc de postlaminage (11) et on réduit légèrement la vitesse du produit laminé et dans lequel on ramène la cage finale (10) du bloc de finition (1) à l'ouverture calibrée prédéterminée après la passe initiale du produit laminé dans le bloc de postlaminage (11).
  2. Procédé selon la revendication 1
    caractérisé en ce qu'on ouvre la cage finale (10) du bloc de finition (1) de 0,02 à 0,05 mm.
  3. Procédé selon la revendication 1 ou 2
    caractérisé, en ce qu'on règle le rapport de réduction du bloc de finition (1) et du bloc de postlaminage (11) de telle sorte qu'une légère traction s'exerce sur le produit laminé, entre les blocs (1,11).
  4. Procédé' selon au moins l'une des revendications 1 à 3
    caractérisé en ce que la réduction aux différentes passes dans le bloc de finition (1) peut se poursuivre dans le bloc de postlaminage (11).
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 EP0560093A1 (fr) 1993-09-15
EP0560093B1 true 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)

Families Citing this family (9)

* 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
IT1288849B1 (it) * 1996-02-12 1998-09-25 Danieli Off Mecc Procedimento perfezionato per la laminazione di prodotti lunghi e linea di laminazione che realizza detto procedimento
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***
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
DE102021205431A1 (de) * 2021-05-28 2022-12-01 Sms Group Gmbh Anlage und Verfahren zur Herstellung von stabförmigen Stählen
DE102021205429A1 (de) * 2021-05-28 2022-12-01 Sms Group Gmbh Anlage und Verfahren zur Herstellung von draht- und/oder stabförmigen Stählen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2000642B1 (fr) * 1968-01-24 1973-04-06 Sumitomo Metal Ind
JPS5147146B2 (fr) * 1972-09-06 1976-12-13
DE2437684C2 (de) * 1974-08-05 1982-09-02 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzwerk zur Herstellung von Draht und Rippenstahl
US3992915A (en) * 1975-04-21 1976-11-23 Birdsboro Corporation Rolling mill
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
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
ATE101065T1 (de) * 1986-10-20 1994-02-15 Schloemann Siemag Ag Fein- oder mittelstahlstrasse.
JP2687488B2 (ja) * 1987-10-30 1997-12-08 大同特殊鋼株式会社 サイジングミル及び丸棒材の圧延方法
DE3830101A1 (de) * 1988-09-05 1990-03-15 Schloemann Siemag Ag Verfahren zum betrieb eines stabstahlwalzwerkes mit auf einer walzlinie angeordneter kuehlstrecke zum thermomechanischen fertigwalzen und stabstahlwalzwerk zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
US5421183A (en) 1995-06-06
DE4207296A1 (de) 1993-09-09
DE59306906D1 (de) 1997-08-21
ATE155369T1 (de) 1997-08-15
JPH05337501A (ja) 1993-12-21
JP3357111B2 (ja) 2002-12-16
US5406822A (en) 1995-04-18
EP0560093A1 (fr) 1993-09-15

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