US20100101293A1 - Coiling furnace - Google Patents

Coiling furnace Download PDF

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Publication number
US20100101293A1
US20100101293A1 US12/376,796 US37679607A US2010101293A1 US 20100101293 A1 US20100101293 A1 US 20100101293A1 US 37679607 A US37679607 A US 37679607A US 2010101293 A1 US2010101293 A1 US 2010101293A1
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US
United States
Prior art keywords
furnace
roller
strip
coiler
door
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.)
Abandoned
Application number
US12/376,796
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English (en)
Inventor
Karl Hoen
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
Individual
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 Individual filed Critical Individual
Assigned to SMS DEMAG AKTIENGESELLSCHAFT reassignment SMS DEMAG AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOEN, KARL
Publication of US20100101293A1 publication Critical patent/US20100101293A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
    • 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
    • C21D9/68—Furnace coilers; Hot coilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • 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
    • B21B45/004—Heating the product

Definitions

  • the invention relates to a coiler furnace, in particular a coiler furnace for a Steckel rolling mill in which a hot-rolled strip is wound and unwound and optionally heated on a drum inside a furnace and oscillated back and forth, comprising guide plates for threading and/or guiding the rolled strip, the guide plates being mounted on a moveable furnace door of the coiler furnace, the furnace door and the coiler furnace being separate units with the furnace door mounted on a part of a roller rack located below the coiler furnace and the furnace door divided into at least two part that are hinged with respect to one another with both parts connected via a hinge and made pivotal.
  • a Steckel coiler furnace is known with a pivoted tilting table, descaling roll and stripper, the tilting table being provided with a pressure roller that presses against the descaling roll when the tilting table is pivoted up and forms with the descaling roll a strip puller that during unwinding pulls the strip-shaped rolling stock from the coil, the stripper being supported in a displaceable manner.
  • DE 685 904 [U.S. Pat. No. 2,072,122] describes a reversing mill for rolling out billets into strips and bands with coiler furnaces arranged on both sides of the rolling mill and drive rollers adjustable in height as well as adjustable guides arranged on both sides of the rolling mill for the rolling stock, with which mill the rolling stock is rolled to and fro up to a certain thickness and, as soon as it has become coilable, is wound and unwound in the boiler furnace.
  • the starting and reversing switches for the drive motor of the working rolls as well as a control device for positioning the drive rollers at the inlet side and outlet side as well as a shifting of the guides control direction change of the working rolls.
  • U.S. Pat. No. 5,637,249 describes how the metal strip can be wound up completely in the coiler furnace with the aid of a heated drive device in the furnace opening.
  • the driver should be heated by a separate heat source.
  • This solution has proven to be technically very complex and can only minimize length of the band cooled in an unacceptable manner.
  • the strip In order to be able to reliably ensure that the strip can be conveyed out of the coiler furnace again, the strip must stay in engagement with the drive device. However, this means that under operating conditions the strip end is never conveyed into the coiler furnace.
  • EP 0 619 377 [U.S. Pat. No. 5,479,807] proposes a driver in combination with a three-roller bending device and a stripper.
  • two rollers are installed in the wall of the coiler furnace such that they are located partially inside and partially outside the furnace.
  • the furnace drum is used as a third roller around which the bending is carried out. Since the coil on the furnace drum grows in diameter with each turn, the furnace drum is supported such that it can be displaced by hydraulic cylinders in a guide.
  • the strip end is held in the drive/bending device in the furnace, namely between one of the rollers mounted in the wall of the coiler furnace and the coil.
  • the stripper is intended to ensure that, even if the strip end adheres to the coil, it can be detached and the strip end safely conveyed out of the furnace.
  • the coiler furnace is characterized in that the two guide segments are attached to loop arms arranged outside the heat protection cover, extending across the pinch direction of the guide segments, and having pivot axes parallel to the coiler mandrel so that the guide segment downstream in the winding direction forms the strip scraper with its unwinding edge and the belt conveyor bridge equipped with a separate semirotary actuator preferably comprises a roller bed whose end roller facing toward the coiler mandrel serves as a pinch roller for the strip.
  • DE-PS 811 837 it is stated that it is known from DE-PS 811 837 to wind the strip up completely on the coiler mandrel of the coiler furnace. However, this complete winding up of the strip makes it necessary to provide special strip scrapers that make it possible to wind up the strip in the case of a reversal of the direction of rotation of the coil.
  • the object of the invention is therefore to simplify the known mechanically complex constructions and to avoid the above-referenced disadvantages.
  • the preamble of claim 1 is known from WO 03/048397 [U.S. Pat. No. 7,155,950].
  • the device according to the invention it is possible to store a metal strip completely inside the coiler furnace. To this end, the coil is prevented from coming undone after the end of the metal strip is no longer clamped in that a furnace roller bears on the coil.
  • the furnace roller can be placed at any position on the coil. However, in order to be able to control the strip end well it is advantageous to do this in the area of the upper half of the coil.
  • the furnace roller like the furnace drum, is installed in the coiler furnace.
  • the furnace roller like the furnace drum, is constructed with a hot jacket mounted on a cooled axle. This has the advantage that temperatures of over 950° C. can be achieved with the conventional heat resistant material of the roller jacket.
  • engaging the furnace roller with the coil leads to a negligible cooling at the engagement location. With thin strip thicknesses, e.g. less than 6 mm, a heating up of the placement location even occurs.
  • the pivots of the furnace roller are supported in two independent levers outside the furnace.
  • the levers in turn are supported in bearing blocks that are mounted outside on the frame of the furnace.
  • a hydraulic cylinder or another type of actuator is attached to one or to both levers, this actuator also being supported on the frame of the furnace.
  • shields are attached to the levers and close slots in the furnace wall that are necessary in order to pivot the furnace roller.
  • the size of the slots is determined by the pivot angle of the furnace roller.
  • the size of the shields is selected such that the slots are closed even in the uppermost as well as in the lowermost position of the furnace roller.
  • the drive means is, for example, an electric motor that is connected to the furnace roller via a jointed shaft.
  • other drives are also conceivable, such as e.g. a fluid motor mounted directly on the furnace roller.
  • a medium such as for example water, air, oil or the like is supplied to the fluid motor via corresponding feed lines.
  • the coiler is furnace is completely closed by appropriate embodiment of the furnace doors.
  • the drum can also be rotated back and forth during the time in which the coil is stored in the coiler furnace.
  • the angular range in which the drum can be rotated depends on the placement point of the furnace roller and on how far the strip end is wound up. By angularly oscillating the drum, the furnace roller also rotates and remains uniformly heated while the engagement site does not cool.
  • the furnace door with which the coiler furnace is closed is embodied such that the cover plate of the furnace door is lifted in order to guide the strip end in the coiler furnace while conveying it out.
  • a stripper is not necessary with the device according to the invention.
  • the strip end will not adhere to the coil, since the strip end does not bear against/on the coil nor is it pressed against the coil by the furnace roller or rolled over by it.
  • FIG. 1 is a cross section through a coiler furnace with opened furnace door during winding up of the rolled strip;
  • FIG. 2 is a cross section through a coiler furnace with closed furnace door and rolled strip completely wound up;
  • FIG. 3 is a cross section through a coiler furnace with opened furnace door and a cover plate for guiding out the rolled strip;
  • FIG. 4 shows a first drive of the roller axle seen in the rolling direction
  • FIG. 5 shows a second drive of the roller axle seen in the rolling direction.
  • FIG. 1 shows in cross section a coiler furnace 1 in which a rolled strip 2 is wound up on a furnace drum 3 in a furnace chamber 4 .
  • the rolled strip 2 is here deflected to the drum 3 by a furnace door 5 carrying guide plates 6 .
  • the furnace door 5 is attached to a roller rack 7 and comprises parts 8 and 9 pivotally connected to each other by a hinge 10 .
  • the rolled strip 2 is pressed against the turns already wound up on the furnace drum 3 by a furnace roller 11 comprising a jacket 12 and an axle 13 .
  • the pressure is exerted by levers 14 attached outside the coiler furnace 1 .
  • the levers 14 are to this end coupled, for example, with respective hydraulic cylinders 15 .
  • the roller axle 13 is moved in slots 16 formed in a housing of the coiler furnace 1 .
  • the slots are covered by outer heat shields (not shown) attached to the levers 14 .
  • FIG. 2 shows the coiler furnace with the door 5 closed.
  • the strip 2 is completely inside the furnace chamber 4 .
  • the furnace drum 3 has been rotated such that the end of the rolled strip is moved to a position between the furnace roller 11 and the furnace door 5 .
  • the furnace drum 3 is rotated such that the rolled strip 2 moves toward the furnace door 5 , especially toward the part 8 .
  • the furnace door 5 is not completely opened thereby, as moved downwards, but a cover plate 17 is rotated by means of an adjustment element 18 around a pivot 19 . This creates an opening in the furnace and guides the strip 2 out it onto the roller table.
  • FIG. 4 shows the drive of the coiler furnace seen in the rolling direction.
  • the drive is an electric motor coupled to the roller axle by a drive shaft.
  • FIG. 5 A second embodiment is shown in FIG. 5 .
  • the drive of the roller axle is here is a fluid motor attached to the roller axle.
  • the drive is directly flange mounted, a more compact construction with low weight is achieved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Metal Rolling (AREA)
US12/376,796 2006-08-12 2007-07-20 Coiling furnace Abandoned US20100101293A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006037962A DE102006037962A1 (de) 2006-08-12 2006-08-12 Wickelofen
DE102006037962.4 2006-08-12
PCT/EP2007/006469 WO2008019751A1 (de) 2006-08-12 2007-07-20 Wickelofen

Publications (1)

Publication Number Publication Date
US20100101293A1 true US20100101293A1 (en) 2010-04-29

Family

ID=38624373

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/376,796 Abandoned US20100101293A1 (en) 2006-08-12 2007-07-20 Coiling furnace

Country Status (8)

Country Link
US (1) US20100101293A1 (ja)
EP (1) EP2052090B1 (ja)
JP (1) JP4937351B2 (ja)
CN (1) CN101501225B (ja)
DE (1) DE102006037962A1 (ja)
RU (1) RU2391168C1 (ja)
UA (1) UA93095C2 (ja)
WO (1) WO2008019751A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140175208A1 (en) * 2012-12-20 2014-06-26 Solar Turbines Incorporated Portable tube coiler
WO2014104578A1 (ko) * 2012-12-24 2014-07-03 주식회사 포스코 코일박스의 맨드렐

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101804426B (zh) * 2009-02-17 2013-03-27 扬州冶金机械有限公司 一种多用途卷取炉
EP2650390B1 (de) 2012-04-13 2015-05-27 Siemens VAI Metals Technologies GmbH Wickelofen
CN103194590B (zh) * 2013-04-03 2015-01-07 济钢集团国际工程技术有限公司 一种防氧化低能耗卷取炉
CN107737809A (zh) * 2017-09-29 2018-02-27 深圳市中创镁工程技术有限公司 一种镁合金带卷炉卷轧制卷取炉装置及炉卷轧制机组
CN107952820B (zh) * 2017-11-18 2019-02-26 扬州易达利机械科技有限公司 一种用于汽车配件生产的铝板卷取装置
CN115519519A (zh) * 2022-09-20 2022-12-27 北京机科国创轻量化科学研究院有限公司 一种专门用于炉辊拆装的折叠架

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US2072122A (en) * 1934-12-04 1937-03-02 Cold Metal Process Co Rolling mill
US2091340A (en) * 1935-08-06 1937-08-31 James K Sutherland Method of hot rolling strips
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US2072122A (en) * 1934-12-04 1937-03-02 Cold Metal Process Co Rolling mill
US2091340A (en) * 1935-08-06 1937-08-31 James K Sutherland Method of hot rolling strips
US2204984A (en) * 1936-03-20 1940-06-18 Ray M Fenton Method of and apparatus for making sheets
US2363585A (en) * 1940-11-23 1944-11-28 Standard Machinery Company Rolling mill
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US3698223A (en) * 1966-09-27 1972-10-17 Mitsubishi Heavy Ind Ltd Apparatus for spirally winding strip metal
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US3602449A (en) * 1969-04-03 1971-08-31 Tenneco Chem Web packaging
US4016740A (en) * 1973-12-27 1977-04-12 Nippon Steel Corporation Method and an apparatus for the manufacture of a steel sheet
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US4430874A (en) * 1981-09-29 1984-02-14 Tippins Machinery Company, Inc. Vertical coiler furnace and method of rolling
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US4485651A (en) * 1982-09-13 1984-12-04 Tippins Machinery Company, Inc. Method and apparatus for underwinding strip on a drum
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US4576029A (en) * 1984-07-24 1986-03-18 Kawasaki Steel Corporation Method of coiling thin strips
US4906809A (en) * 1986-06-27 1990-03-06 John Workman Metal slitting and stamping
US5195344A (en) * 1987-03-06 1993-03-23 Nippon Kokan Kabushiki Kaisha Warm rolling facility for steel strip coils
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JP4937351B2 (ja) 2012-05-23
WO2008019751A1 (de) 2008-02-21
RU2391168C1 (ru) 2010-06-10
UA93095C2 (en) 2011-01-10
JP2010500176A (ja) 2010-01-07
EP2052090A1 (de) 2009-04-29
EP2052090B1 (de) 2013-11-20
DE102006037962A1 (de) 2008-02-14
CN101501225B (zh) 2011-08-03

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