EP1040207A1 - Four a cloche - Google Patents

Four a cloche

Info

Publication number
EP1040207A1
EP1040207A1 EP99953635A EP99953635A EP1040207A1 EP 1040207 A1 EP1040207 A1 EP 1040207A1 EP 99953635 A EP99953635 A EP 99953635A EP 99953635 A EP99953635 A EP 99953635A EP 1040207 A1 EP1040207 A1 EP 1040207A1
Authority
EP
European Patent Office
Prior art keywords
hood
glow
annealing
base
heating
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.)
Withdrawn
Application number
EP99953635A
Other languages
German (de)
English (en)
Inventor
Arne-Nils Knudsen
Siegfried Wilden
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.)
Otto Junker GmbH
Original Assignee
Otto Junker 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 Otto Junker GmbH filed Critical Otto Junker GmbH
Publication of EP1040207A1 publication Critical patent/EP1040207A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F27B11/00—Bell-type furnaces
    • 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
    • C21D9/663—Bell-type furnaces
    • 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
    • C21D9/663—Bell-type furnaces
    • C21D9/675—Arrangements of charging or discharging devices
    • 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
    • C21D9/663—Bell-type furnaces
    • C21D9/667—Multi-station furnaces

Definitions

  • the invention relates to a bell-type furnace system for the annealing treatment of metal coils with an annealing base sitting on an oven foundation, on which at least one metal coil can be placed in the vertical position of its winding axis, and an annealing hood which can be placed on the annealing base in a sealing manner and via which a heating hood and alternatively one Cooling hood can be placed.
  • So-called bell annealing furnaces are used for the annealing treatment of metal coils. These are used by various companies, including A. Junker, Ebner and LOI. The prior art shown below is taken from brochures of the above companies, e.g. the Ebner Journal, Issue 2, (Sept. 1998). A system from 1978 is known from the Junker company, which is also shown in a company-specific advertising lettering.
  • Metal coils are to be understood here as coils, wire and tube coils or coils.
  • the metal coils are arranged on a glow base so that their winding axis is vertical.
  • several coils are stacked on top of one another, separated from one another by an intermediate layer, a so-called convector plate or convector star.
  • a glow hood is then placed over the coil or coils, which is sealingly connected to the glow base, so that the interior of the glow hood can be placed under protective gas.
  • a heating hood is placed over the glow hood, which is equipped with appropriate heating devices.
  • the heating hood is removed again and replaced by a cooling hood, which ensures accelerated cooling of the annealing hood and the annealing material contained therein.
  • the metal coils are placed on the glow base and the hoods are placed using a crane system.
  • the metal coils are used for handling with conventional means of transport, e.g. Forklift trucks, mounted so that their winding axis is horizontal. In this way you can e.g. reach into the coil with the arms of a forklift and lift and transport it easily. If necessary, they are also removed from a roll stand by means of a so-called C-hook and transported directly to the bell-type furnace system. To place a coil in a hood furnace, it must therefore be rotated 90 ° from its transport position. To do this, you use a so-called tilting chair.
  • the tilting chair has a mandrel or a similar guide device on which the metal coil is first placed, possibly after a convector plate has been placed first.
  • the tilting chair is tiltably supported on one side and is tilted by 90 ° after placing a metal coil, so that the winding axis of the coil now assumes a vertical position.
  • the coil is gripped and lifted with a special pair of pliers or the convector plate, on which the coil may already be resting, is raised by means of crane hooks and chains, which simultaneously support the coil on the side, and the coil is moved to and on the annealing base of the hood furnace put on.
  • the convector plates must have the necessary strength, i.e. be dimensioned for lifting with a coil. For the bell-type furnace, they therefore represent a lot of "dead" material that also has to be heated.
  • the annealing hood, heating hood and cooling hood are provided with appropriate lifting eyes so that they can also be lifted and moved by crane.
  • guide means are also required, which are connected to the glow socket.
  • the invention is based on the object of specifying a bell-type furnace system which requires less investment and with which work can be carried out faster, more economically and less dangerously.
  • the object is achieved in that at least one mandrel extending normal to the base thereof is attached to the glow base, that the glow base including the glow hood and the metal coil (s) is mounted so that it can be tilted by 90 ° between a vertical and a horizontal position, that the glow - Hood can be placed in its horizontal position on the glow base and can be removed from it, that both the heating hood and the cooling hood are laterally provided with means for opening and closing, so that an opening through the glow hood is created and that both the heating hood and the The cooling hood can be moved horizontally with respect to the glow hood in the vertical position.
  • the axis about which the glow base can be tilted lies horizontally in an imaginary plane going vertically through the base of the glow base. The closer the tipping point has moved to the center of gravity of the glow base, the shorter the rocker arm and thus the force to be applied to tilt the glow base. Tilting can be done with standard hydraulic systems.
  • the heating hood and cooling hood are expediently provided with a door for opening one side.
  • the door can be made with one or two leaves and hung from the hoods by hinges. It can also be designed as a flap for folding up.
  • the hoods are e.g. movable on rails.
  • a complex crane system or deep foundation pits can now be dispensed with for loading and unloading the hood furnace and for transporting the hoods become.
  • the metal coils are applied in their usual transport position, ie with a horizontal angular axis, to the guide means of the glow socket tilted up by 90 °. If necessary, they are transported directly from a roll stand, suspended from a C-hook of a simple trolley, to the glow socket.
  • the mandrels on the glow socket are slotted in the axial direction, so that the C-hook can move into these slits for depositing the coils. This process can even be automated through the design of the bell-type furnace system according to the invention.
  • a convector plate is placed between two coils during loading, but this now only has to be dimensioned so that it can withstand the pressure of the coil or coils above it.
  • the glow hood is pushed in a horizontal position over the coils onto the glow base and connected to it.
  • a transport vehicle e.g. a transport vehicle according to the principle of a forklift or in turn the trolley can be provided.
  • the glow socket including the glow hood and the metal coils housed in it are tilted back into the vertical position by 90 °.
  • the annealing treatment takes place in this position.
  • the opened heating hood is first moved over the glow hood in a standing position and then closed.
  • the heating hood is replaced by an equally constructed cooling hood. Since several furnace systems are usually accommodated in a hall, the working cycle can be selected such that one furnace system is loaded or unloaded, while another is in glow mode and a third is in cooling mode.
  • the times for loading and unloading the hood furnaces and changing the hoods can be significantly reduced compared to the previous method.
  • Fig. 1 shows the glow socket according to the invention with the glow hood attached in a schematic side view
  • Fig. 2 shows a heating hood pushed over the glow hood schematically in a plan view.
  • a glow base 1 rests on an oven foundation, not shown here.
  • mandrels 6 Attached to the glow base 1 are mandrels 6, the diameters of which correspond to the inside diameter of the metal coils 7.
  • the glow base 1 which is mounted on an axis 8, is tilted by 90 °. In this position, the metal coils 7 can now be loaded.
  • slots 9 are indicated, into which a corresponding C-hook of a trolley can enter.
  • a glow hood 10 is then pushed on in a horizontal position and connected to the glow base 1 in a sealing manner.
  • Fig. 1 the system is shown in dashed lines in this arrangement, the substructures 2 being omitted for reasons of clarity.
  • the glow base 1 After loading and applying the glow hood 10, the glow base 1 is tilted back into its working position. For example, conventional hydraulic systems (not shown here) are provided for tipping.
  • a heating mantle 11 is now pushed over the annealing hood 10, which is shown in FIG. 2.
  • the heating hood 11 can be moved on rails 12 and has a double-leaf door 13 which is suspended from door hinges 14. After closing the door 13, the annealing treatment can begin.
  • the heating hood 11 is then exchanged for a cooling hood, not shown here, which in turn is provided with a door.
  • the bright annealed metal coils 7 can be removed after the glow socket 1 has been tilted up again by 90 ° and the glow hood 10 has been removed.
  • the loading place 15 for these manipulations is indicated in FIG. 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (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)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

Afin de pouvoir placer un rouleau de métal dans un four à cloche, il est nécessaire de faire basculer ce dernier de 90 DEG à partir de sa position de transport, au moyen d'un culbuteur. La cloche à recuire, la hotte de chauffage et la hotte de refroidissement du four à cloche doivent alors être soulevées et déplacées au moyen d'une grue. L'invention vise à permettre de renoncer à l'utilisation d'un culbuteur et d'un système de grue complexe. A cet effet, au moins une broche (6) est placée sur le socle de four à recuire (1), ladite broche s'étendant perpendiculairement à la surface de base dudit socle. Ce dernier (1), avec la cloche à recuire (10) et le ou les rouleaux de métal (7), est monté de manière à pouvoir basculer de 90 DEG entre une position verticale et une position horizontale. La cloche à recuire (10) peut être placée dans sa position horizontale sur le socle à recuire (1) et être retirée de ce dernier. La cloche de chauffage (11) et la cloche de refroidissement (10) présentent latéralement des moyens d'ouverture et de fermeture, de façon à produire une ouverture pour le passage de la cloche à recuire (10). La cloche chauffante (11) et la cloche de refroidissement peuvent être déplacées en position verticale par rapport à la cloche à recuire (10). Ce four à cloche s'utilise pour le recuit de rouleaux de feuillards, fils et tubes.
EP99953635A 1998-10-14 1999-08-31 Four a cloche Withdrawn EP1040207A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19847417 1998-10-14
DE19847417A DE19847417C2 (de) 1998-10-14 1998-10-14 Haubenofenanlage
PCT/DE1999/002718 WO2000022178A1 (fr) 1998-10-14 1999-08-31 Four a cloche

Publications (1)

Publication Number Publication Date
EP1040207A1 true EP1040207A1 (fr) 2000-10-04

Family

ID=7884484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99953635A Withdrawn EP1040207A1 (fr) 1998-10-14 1999-08-31 Four a cloche

Country Status (6)

Country Link
US (1) US6346214B1 (fr)
EP (1) EP1040207A1 (fr)
JP (1) JP2002527706A (fr)
CA (1) CA2314265A1 (fr)
DE (1) DE19847417C2 (fr)
WO (1) WO2000022178A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7204894B1 (en) 2004-03-18 2007-04-17 Nucor Corporation Annealing of hot rolled steel coils with clam shell furnace
US7485255B2 (en) * 2004-08-31 2009-02-03 Novelis, Inc. Self-annealing enclosure
US7454246B2 (en) * 2005-09-08 2008-11-18 Massachusetts Eye & Ear Infirmary Sensor signal alignment
WO2007121074A2 (fr) * 2006-04-10 2007-10-25 Nucor Corporation Recuit de bobines d'acier laminé à chaud au moyen d'un four à coque
DE102009026624A1 (de) * 2009-05-31 2011-04-28 Wimo Hebetechnik Gmbh Kipptischanlage, Lastaufnahmemittel sowie diese umfassendes Bestückungssystem für Wärmebehandlungseinrichtungen wie insbesondere Haubenglühöfen zum Rekristallisationsglühen von Coils
DE102017121830A1 (de) * 2017-09-20 2019-03-21 Ebner Industrieofenbau Gmbh Portable Trägervorrichtung für eine Ofencharge und Handhabungssystem für die Trägervorrichtung
CN110129547A (zh) * 2019-06-12 2019-08-16 山西太钢不锈钢精密带钢有限公司 超薄不锈钢带的罩式炉热处理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568980A (en) * 1943-10-11 1945-04-30 James Mcdonald Improvements relating to furnaces with circulation of internal atmosphere
US2875997A (en) * 1955-10-24 1959-03-03 Lee Wilson Method of and apparatus for heating coils of metal rod, wire or the like
DE3149085A1 (de) * 1981-12-11 1983-06-16 William Prym-Werke Kg, 5190 Stolberg Automatische beschickungsvorrichtung fuer haubengluehoefen
DE3233815A1 (de) * 1982-09-11 1984-03-15 Btf-Edelstahlverarbeitung Gmbh & Co Kg, 5928 Laasphe Schutzmantel fuer einrichtungen zur waermebehandlung von werkstuecken
EA000962B1 (ru) * 1997-01-30 2000-08-28 Лои Термпроцесс Гмбх Колпаковая печь

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0022178A1 *

Also Published As

Publication number Publication date
US6346214B1 (en) 2002-02-12
JP2002527706A (ja) 2002-08-27
WO2000022178A1 (fr) 2000-04-20
CA2314265A1 (fr) 2000-04-20
DE19847417C2 (de) 2001-10-04
DE19847417A1 (de) 2000-04-27

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