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EP0432531A1 - Dispositif pour refroidir des fils laminés - Google Patents

Dispositif pour refroidir des fils laminés Download PDF

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Publication number
EP0432531A1
EP0432531A1 EP90122275A EP90122275A EP0432531A1 EP 0432531 A1 EP0432531 A1 EP 0432531A1 EP 90122275 A EP90122275 A EP 90122275A EP 90122275 A EP90122275 A EP 90122275A EP 0432531 A1 EP0432531 A1 EP 0432531A1
Authority
EP
European Patent Office
Prior art keywords
cooling
winding
wire
transport system
cooling device
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
EP90122275A
Other languages
German (de)
English (en)
Other versions
EP0432531B1 (fr
Inventor
Rolf Schöler
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
Original Assignee
SMS Schloemann Siemag 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, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0432531A1 publication Critical patent/EP0432531A1/fr
Application granted granted Critical
Publication of EP0432531B1 publication Critical patent/EP0432531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B21C47/262—Treatment of a wire, while in the form of overlapping non-concentric rings

Definitions

  • the invention relates to a cooling device for the controlled cooling of a finished rolled wire from the rolling heat, in particular consisting of a cooling device arranged behind the finishing stand, for example water ramps, a winding layer for the wire and a cooling and transport system for the fanned wire windings.
  • the wire is rolled in a rolling mill, in which the starting material, for example a rod-shaped semi-finished product with a cross-sectional area of 100 mm to 150 mm, is fed from a holding furnace to the rolling stands of a roughing mill.
  • the rolling stock from the roughing mill is subsequently rolled out into round material in an intermediate mill and a finishing train, which is then thermomechanically formed in a multi-stand rolling block onto an endless rolling stock with a diameter of approx. 5.5 mm.
  • the finished wire emerging from the finishing block is fed directly from the rolling heat to the Stelmor cooling line that is predominantly used.
  • the wire In the Stelmor cooling line, the wire is cooled in a controlled manner in order to achieve certain material properties, uniform physical properties over the entire length of the wire rod and therefore a good pullability.
  • the wire first runs through a water cooling section behind the finished block and is then fanned out onto a conveyor belt by a winding device. During the transport to the winding collector, the wire is specifically cooled further by blown air.
  • the conveyor belt is either a chain conveyor or a roller conveyor, under which the cooling fans are arranged in spatially separated sections.
  • the cooling air is blown from below through slots in the conveyor belt.
  • the temperature of the incoming windings is 800 to 850 ° C for high-carbon steels and a maximum of 900 ° C for low-carbon steels. In the case of low-carbon steels, the windings are transported as slowly as possible and without cooling air, while in the case of high-carbon steels the material is conveyed at a high transport speed and with the highest cooling air supply.
  • a cooling and conveying device for a wire fanned out by a winding layer is known, the conveying device having individual transport sections with adjustable transport speeds.
  • the length of the successive transport sections of the conveying device is dimensioned in accordance with the temperature drop within a section that is desired for the largest wire dimension that occurs.
  • the temperature of the wire loops is measured with a radiation pyrometer at the end of each conveyor section.
  • the cooling of the wire is regulated with relatively great effort in order - as mentioned - to achieve certain material properties of the wire, in particular also with regard to the quality of the wire surface.
  • the winding layer with the finishing block of the rolling mill must run synchronously so that neither pull nor thrust occur and the wire can be fanned evenly in turns on the downstream conveyor belt by the laying head.
  • the downward inclined coil layer is therefore robustly constructed and has a particularly rigid housing to avoid natural vibrations.
  • the sturdy laying tube is shaped and mounted in such a way that it can be easily blown out and quiet wire guidance is ensured.
  • the object of the invention is to avoid the above-mentioned disadvantages in wire production and to take measures with a cooling device for wire rod according to the above-mentioned type with which the outside term storage of the wire windings on the cooling and transport belt is prevented so that the surface of the wire maintains the previously achieved rolling quality.
  • the solution takes place in a cooling device of the type mentioned with the characterizing features of patent claim 1. Further developments of the invention can be found in patent claims 2 to 10.
  • the cooling device for controlled cooling of the fanned wire turns is characterized in that a swiveling and / or displaceable winding feeder is arranged between the winding layer and the cooling and transport system.
  • the winding feeder has a hinge design at the transition to the cooling and transport system, that a rolling or sliding support for the winding feeder is arranged at the transition to the winding feeder, and that a displacement device acts on at least one side of the winding feeder closest to the turnbuckle .
  • the fulcrum of the trailer is located at the transition area to the cooling and transport system, because there the first winding packages already lie firmly on the trailer and therefore a smooth transition of the winding packages from the trailer to the cooling and transport system is ensured.
  • the width of the winding feeder approximately corresponds to the width of the cooling and transport system and that the length of the winding feeder corresponds approximately to the throw-off length of the turns from the winding feeder to the first winding packages.
  • a measuring device preferably a photo-optical device, for example on the wire windings
  • a camera is arranged, which is connected to the displacement device in terms of control technology.
  • the winding feeder be designed as a roller conveyor.
  • This configuration of the winding trailer is particularly advantageous if the first section of the cooling and transport system is also designed as a roller conveyor.
  • the drive of the conveyor rollers of the winding trailer is a speed-controllable drive unit, for example a gear motor. This enables different transport speeds tailored to the respective wire quality.
  • the winding trailer is part of the cooling and transport system, whereby the winding trailer can be provided with its own controllable cooling device or can be incorporated into the cooling device of the first transport section in a constructive and procedural manner by means of suitable measures.
  • the cooling and transport system retains almost the same overall length in comparison to conventional systems, despite the swiveling turntable provided.
  • the winding feeder is at least partially height-adjustable, preferably at the transition to the cooling and transport system.
  • those which support the winding support Rollers are spherical, so that an unobstructed rolling of the support of the winding trailer on the foundation is guaranteed when the trailer is pivoted.
  • the cooling device for a rolled steel wire following a wire block is shown schematically, which consists of a water cooling 1, for example a water ramp, a winding device 2, a cooling and transport device 3 with fans 4, a winding collector 5 and a hook track 6 for finished wire bundles.
  • the wire 8 rolled out in the finished wire block is quenched in the water ramp 1 from the rolling heat of 900 to 1050 ° C. to temperatures which, depending on the alloy components, are intended to cause or influence certain properties of the wire rod.
  • the rolling stock is gradually cooled in this area if no martensite or bainite is allowed to form on the surface.
  • a uniform structure from the core to the surface is not desirable; In this case, the wire rod is cooled so much in the water ramps that martensite is formed on the surface of the wire the core heat is left on.
  • the laying temperature for Tempcore wire is around 500 ° C, while the other qualities are cooled to a temperature between 900 ° C and 750 ° C.
  • the quenched but still glowing wire rod is deposited in turns and fanned out on the cooling and transport device with the help of the winding layer 2.
  • the cooling and transport device 3 provided with driven transport rollers 9 has three cooling sections 3 ′, 3 ′′, 3 ′′ ′′ to be controlled differently, each cooling section below the transport rollers 9 having a flow housing 10 and the blower 4.
  • the fanned out windings are conveyed further on the cooling conveyor belt, on which they can be cooled down very quickly with blown air at a cooling speed of 15 to 200 ° C per second, in that the cooling air conveyed by the blowers is fed from below through the roller table to the wire windings to be cooled is, the wire windings are flowed around on all sides by the cooling air.
  • the optimal cooling and transport device for the wire windings must therefore be designed flexibly for a wide variety of cooling variants.
  • the wire rod is rolled out in modern rolling mills at speeds of 100m / s in the finishing block. It is therefore absolutely essential that the winding rack on the refrigerated transport system is carried out as precisely and centrally as possible so that the procedural objectives are achieved and surface damage to the wire due to the displacement of the winding pattern against the side walls of the transport system is avoided.
  • the pivotable winding support 11 is arranged between the winding layer 2 and the cooling and transport device 3.
  • the winding layer 11 is designed as a roller conveyor, the conveyor rollers 12 of which are driven by a speed-adjustable drive unit 13 are driven.
  • the individual conveyor rollers are driven in a manner known per se by a chain drive, which is not shown in detail, but runs in the chain case 14.
  • the winding feeder 11 has an articulation 15 at the transition to the cooling and transport system 3; furthermore, a rolling support 16 for the winding feeder is arranged at the transition to the winding feeder 2.
  • the rollers 17 supporting the winding trailer are spherical.
  • a displacement device 19 engages, which can consist, for example, of a piston-cylinder unit.
  • the direction of movement of the displacement device is indicated by arrow 20.
  • the pivoting of the winding support 11 caused by the displacement device 19 is indicated by the arrow 21.
  • a height-adjustable support buffer 22 is arranged below the winding feeder 11.
  • a ge against heat protected camera 24 is arranged, with which the winding image of the wire windings deposited by the winding layer 2 is continuously detected.
  • the camera 24 is connected to the displacement device 19 in terms of control technology by means of a transducer and measuring amplifier 25.
  • the operating personnel will actuate the shifting device 19 remotely, whereby the winding clamp 11 rotates in the joint formation 15 and is moved on the support rollers 17 in the desired direction of movement 21.
  • the winding pattern that is to say the wire windings lying one above the other to form a fanned-out package, is directed into the center of the transport device 3 and the wire can, without touching the side walls 23 of the transport device 3, move to the winding collector 5 according to the movement arrow 26 at the end of the cooling and transport device can be transported.
  • the correction of the winding pattern or the correction of the direction of movement of the wire windings on the cooling and transport device 3 can be automated in that the displacement device 19 is actuated by the optical measuring device 24 with the aid of the measuring amplifier and the transducer 25 as soon as a predetermined setpoint or a predetermined permissible center deviation is exceeded.
  • the width Bw of the winding feeder 11 corresponds almost to the width Bk of the cooling and transport system 3, and the length Lw of the winding feeder corresponds approximately to the length of the windings from the winding feeder to the first winding packets of the fanned wire 8.
  • the support buffer 22 is adjusted in accordance with the movement arrow 27.
  • the winding feeder 11 is also intended to be a cooling device for the wire rod and is thus to be incorporated as a cooling section in the cooling and transport device 3, the winding feeder 11 according to FIG. 1 can be equipped with a separate flow housing 10 and the corresponding blower 4.
  • the winding feeder can have a heat-insulating hood for other reasons.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Heat Treatment Of Articles (AREA)
  • Coating With Molten Metal (AREA)
EP90122275A 1989-12-09 1990-11-22 Dispositif pour refroidir des fils laminés Expired - Lifetime EP0432531B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940735 1989-12-09
DE3940735A DE3940735A1 (de) 1989-12-09 1989-12-09 Kuehleinrichtung fuer walzdraht

Publications (2)

Publication Number Publication Date
EP0432531A1 true EP0432531A1 (fr) 1991-06-19
EP0432531B1 EP0432531B1 (fr) 1994-08-17

Family

ID=6395136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122275A Expired - Lifetime EP0432531B1 (fr) 1989-12-09 1990-11-22 Dispositif pour refroidir des fils laminés

Country Status (5)

Country Link
US (1) US5079937A (fr)
EP (1) EP0432531B1 (fr)
JP (1) JPH03236423A (fr)
AT (1) ATE110117T1 (fr)
DE (2) DE3940735A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0642850A1 (fr) * 1993-09-14 1995-03-15 Morgan Construction Company Installation pour la manipulation de matières laminées
US6161787A (en) * 1997-10-22 2000-12-19 Sms Schloemann Siemag Aktiengesellschaft Method of placing wire windings onto a conveyor belt and device for carrying out the method
EP0930108A3 (fr) * 1998-01-16 2001-01-24 SMS Demag AG Dispositif de dépot de boucles de fil
EP0974407A3 (fr) * 1998-07-21 2002-03-20 Morgan Construction Company Dispositif de centrage de boucles de fil sur un transporteur de refroidissement
CN102965489A (zh) * 2012-12-12 2013-03-13 天津市热处理研究所有限公司 细长杆类零件的热处理及在线校直装置及方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1314806B1 (it) * 2000-03-07 2003-01-16 Danieli Off Mecc Apparecchiatura per il trasporto ed il raffreddamento di prodottilaminati quali vergelle, fili, tondini o simili.
US20080019805A1 (en) * 2006-07-19 2008-01-24 Bowler Martyn A Method of transporting and heat treating coils of hot rolled products in a rolling mill
FI20070622L (fi) * 2007-08-17 2009-04-15 Outokumpu Oy Menetelmä ja laitteisto tasaisuuden kontrolloimiseksi ruostumatonta terästä olevan nauhan jäähdytyksessä
EP3037185B1 (fr) * 2013-10-29 2019-10-02 Nippon Steel Corporation Dispositif de refroidissement de tige de fil et procédé de refroidissement de tige de fil
US20220371077A1 (en) * 2021-05-21 2022-11-24 Primetals Technologies USA LLC Method of Automating Coil Height Control in a Wire Rod Plant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752025A1 (de) * 1968-01-30 1970-12-23 Schloemann Ag Vorrichtung zur Durchfuehrung des Verfahrens zum kontinuierlichen Ablegen eines Drahtwindungsstranges auf ein endloses Foerdermittel
DE2837912A1 (de) * 1978-08-31 1980-03-13 Moeller & Neumann Gmbh Vorrichtung zum ausfaechern und ablegen von nicht konzentrischen drahtwindungen auf ein als kuehlstrecke dienendes transportband
GB2055651A (en) * 1979-08-13 1981-03-11 Kocks Technik Wire or wire rod coolers
DE2536236C2 (de) * 1975-08-14 1985-01-03 Mannesmann AG, 4000 Düsseldorf Verfahren und Vorrichtung zum kontinuierlichen Patentieren von Walzdraht aus der Walzhitze
DE3537668A1 (de) * 1985-10-23 1987-04-23 Krupp Gmbh Walzdrahtadjustage
DD250069A1 (de) * 1986-06-19 1987-09-30 Thaelmann Schwermaschbau Veb Transporteur nach einem windungsleger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1353252A (en) * 1971-12-28 1974-05-15 British Steel Corp Cropping metal sections to length
US3865153A (en) * 1973-12-03 1975-02-11 Morgan Construction Co Metal treatment apparatus for steel rod having an oscillating platform below the laying head
JPS5477260A (en) * 1977-12-01 1979-06-20 Toshiba Corp Laying head positioning control unit
US4653630A (en) * 1981-11-16 1987-03-31 Anna Bravin Method of and device for controlling the transfer of articles from a first conveyor belt to predetermined locations on a second conveyor belt
IT8460459U1 (it) * 1984-09-19 1986-03-19 Danieli Off Mecc Testa forma spire convertibile
US4651203A (en) * 1985-10-29 1987-03-17 At&T Technologies, Inc. Video controlled article positioning system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752025A1 (de) * 1968-01-30 1970-12-23 Schloemann Ag Vorrichtung zur Durchfuehrung des Verfahrens zum kontinuierlichen Ablegen eines Drahtwindungsstranges auf ein endloses Foerdermittel
DE2536236C2 (de) * 1975-08-14 1985-01-03 Mannesmann AG, 4000 Düsseldorf Verfahren und Vorrichtung zum kontinuierlichen Patentieren von Walzdraht aus der Walzhitze
DE2837912A1 (de) * 1978-08-31 1980-03-13 Moeller & Neumann Gmbh Vorrichtung zum ausfaechern und ablegen von nicht konzentrischen drahtwindungen auf ein als kuehlstrecke dienendes transportband
GB2055651A (en) * 1979-08-13 1981-03-11 Kocks Technik Wire or wire rod coolers
DE3537668A1 (de) * 1985-10-23 1987-04-23 Krupp Gmbh Walzdrahtadjustage
DD250069A1 (de) * 1986-06-19 1987-09-30 Thaelmann Schwermaschbau Veb Transporteur nach einem windungsleger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0642850A1 (fr) * 1993-09-14 1995-03-15 Morgan Construction Company Installation pour la manipulation de matières laminées
US5423200A (en) * 1993-09-14 1995-06-13 Morgan Construction Company Rolling mill material handling system
US6161787A (en) * 1997-10-22 2000-12-19 Sms Schloemann Siemag Aktiengesellschaft Method of placing wire windings onto a conveyor belt and device for carrying out the method
EP0911092A3 (fr) * 1997-10-22 2001-03-21 SMS Demag AG Dispositif et procédé de dépôt de boucles de fil sur une bande transporteuse
EP0930108A3 (fr) * 1998-01-16 2001-01-24 SMS Demag AG Dispositif de dépot de boucles de fil
EP0974407A3 (fr) * 1998-07-21 2002-03-20 Morgan Construction Company Dispositif de centrage de boucles de fil sur un transporteur de refroidissement
CN102965489A (zh) * 2012-12-12 2013-03-13 天津市热处理研究所有限公司 细长杆类零件的热处理及在线校直装置及方法
CN102965489B (zh) * 2012-12-12 2015-03-25 天津市热处理研究所有限公司 细长杆类零件的热处理及在线校直装置及方法

Also Published As

Publication number Publication date
JPH03236423A (ja) 1991-10-22
DE59006834D1 (de) 1994-09-22
EP0432531B1 (fr) 1994-08-17
ATE110117T1 (de) 1994-09-15
US5079937A (en) 1992-01-14
DE3940735A1 (de) 1991-06-13

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