EP1032716B1 - Coilboxofen - Google Patents

Coilboxofen Download PDF

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Publication number
EP1032716B1
EP1032716B1 EP98955579A EP98955579A EP1032716B1 EP 1032716 B1 EP1032716 B1 EP 1032716B1 EP 98955579 A EP98955579 A EP 98955579A EP 98955579 A EP98955579 A EP 98955579A EP 1032716 B1 EP1032716 B1 EP 1032716B1
Authority
EP
European Patent Office
Prior art keywords
coil
saddle
coilbox
furnace according
furnace
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
EP98955579A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1032716A1 (de
Inventor
Ernst-Ulrich Becker
Detlef Bosselmann
Michael Degner
Michael Nowak
Gerd Thiemann
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Stahl 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 ThyssenKrupp Stahl AG filed Critical ThyssenKrupp Stahl AG
Publication of EP1032716A1 publication Critical patent/EP1032716A1/de
Application granted granted Critical
Publication of EP1032716B1 publication Critical patent/EP1032716B1/de
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
    • 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

Definitions

  • the invention relates to a coil box furnace with a heating device to reheat a coil Rolling temperature and a saddle to accommodate the rewarming coils, with the saddle at least two the coil has tangentially supporting surfaces on its outer circumference.
  • a coil box in the infeed of a prefabricated season enables winding and temporary buffering of the opening before use in the pre-season of about ten Minutes for mild steel grades.
  • a coil box is for example from DE-OS 2 256 030 known.
  • Stainless steel grades that are only available in a tight Temperature range can be rolled, they offer Reserves, however, do not, so that such supporting strips faults lasting several minutes are stored as a coil, however have not yet been reintroduced into the rolling line could.
  • EP 0 734 793 A1 discloses coil boxes in front of and insert behind a reversing scaffold. It is the same known from this document to provide an oven in the belt after passing through the reversing stand is reheated. With the use of a Reheating furnace on the coil box can problems mentioned above can be eliminated by Coil box pre-strips are heated to the rolling temperature and be integrated into the rolling process again.
  • a coil box furnace known from practice is as Chamber furnace with one fixed and one movable Housing part formed.
  • the movable housing part has an electromechanical drive and is on Rail wheels can be moved. Heating the oven is made by meandering heating conductors connected to the four Side walls of the furnace installed and individual Rule groups are summarized. Not extra heated circular segment shaped saddle for the coil stands on a base plate made of fireproof concrete and a frame made of heat-resistant steel (see. Fig. 1).
  • US-A-5 383 651 describes a saddle for supporting a coil during annealing, which two the coil has tangentially supporting surfaces on the outside.
  • This saddle is in a coil box oven used, the coil temporarily stored therein are evenly heated to the rolling temperature, so that the temperature-related final thickness tolerances of the finished rolled strip can be minimized.
  • the invention suggested that the saddle is built from slabs cut into each other. Thereby weld seams are avoided.
  • the saddle of the coil box furnace according to the invention is expediently trapezoidal.
  • An advantageous embodiment of the invention Solution is that the bearing surfaces of the saddle from a variety in the direction of the coil width spaced surveys are formed. This will the actual contact area between the saddle and the coil further decreased.
  • the saddle slabs can preferably be made of Stainless steel. To stabilize the Invention saddle is in contrast to that above-mentioned circular segment-shaped saddle no Refractory material required.
  • Coil box furnace Another advantageous embodiment of the Coil box furnace according to the invention is that this a device for rotating or oscillating the coil having. This configuration also contributes to Uniformization of the temperature profile in the Finished relaunch of the opening act.
  • the bearing surfaces by Disc rollers with along the longitudinal axes of the rollers spaced circular disks are formed. It can be used for Rotate or swing the coil at least one of the Disc rollers can be coupled with a rotary drive.
  • the coil box furnace shown in Fig. 1 is a chamber furnace with a fixed housing part 1 and one Rail movable housing part 2. Zur Reheating a pre-strip coil 3 to the rolling temperature is the oven with a heater (not shown) fitted. A is used to hold the coil circular saddle 4.
  • the coil box furnace according to the invention has one Pick-up saddle on, such as in the figures 2 to 4 is shown schematically.
  • the receiving saddle 4 ' consists of a base plate 5 with two spaced supports 6, 7, on each of which one Edition 8, 9 is attached.
  • the pads 8, 9 form two the leading coil 3 tangentially on its outer circumference supporting bearing surfaces 10, 11.
  • the bearing surfaces 10, 11 consist of nested Stainless steel slabs with a variety towards the Coil width of spaced elevations 12.
  • the elevations 12, which is parallel to the circumferential direction of the coil 3 extending grooves 13 are formed, each have essential flat contact surfaces.
  • the Elevations can also be convex.
  • the Heating device can preferably consist of one inductive saddle heating exist.
  • FIG. 5 is a second embodiment of a Recording saddle for a coil box furnace according to the invention shown schematically.
  • the Disc rollers 14 are supported in support blocks 16, 17, which the axes of rotation 18 or shafts 19 of the disc rollers in the spaces between the spaced circular disks 15 Support rotatably and in the area of the circular disks 15 Have recesses.
  • the distance between the contact surfaces i.e. the distance A the Rollers adjustable.
  • one of the Disc rollers 14 with a gear 20 and one Provided electric motor 21 rotary drive by means of which the overlying coil 3 during heating in the coil box furnace to even out the Temperature profile can be rotated.
  • the rotation can only in one direction of rotation or alternatively, alternately in both directions of rotation take place so that the coil 3 practically a pendulum movement performs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Induction Heating (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP98955579A 1997-11-18 1998-11-14 Coilboxofen Expired - Lifetime EP1032716B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19750998A DE19750998C1 (de) 1997-11-18 1997-11-18 Coilboxofen
DE19750998 1997-11-18
PCT/EP1998/007298 WO1999025883A1 (de) 1997-11-18 1998-11-14 Coilboxofen

Publications (2)

Publication Number Publication Date
EP1032716A1 EP1032716A1 (de) 2000-09-06
EP1032716B1 true EP1032716B1 (de) 2002-09-04

Family

ID=7849040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98955579A Expired - Lifetime EP1032716B1 (de) 1997-11-18 1998-11-14 Coilboxofen

Country Status (10)

Country Link
EP (1) EP1032716B1 (xx)
JP (1) JP2001523762A (xx)
AR (1) AR014024A1 (xx)
AT (1) ATE223508T1 (xx)
AU (1) AU734790B2 (xx)
CA (1) CA2310411A1 (xx)
DE (2) DE19750998C1 (xx)
TW (1) TW490491B (xx)
WO (1) WO1999025883A1 (xx)
ZA (1) ZA9810397B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101263853B1 (ko) 2011-07-18 2013-05-13 주식회사 포스코 온간압연 열처리 시편 자동 취입장치 및 이를 이용한 시편 온도 편차 균일화 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE609979C (de) * 1929-08-11 1935-02-27 Heimsoth & Vollmer G M B H Vorrichtung zum Erwaermen von schweren Arbeitsstuecken
GB1373375A (en) * 1971-11-15 1974-11-13 Canada Steel Co Method for rolling hot metal workpieces
DE2613459A1 (de) * 1976-03-30 1977-10-13 Schloemann Siemag Ag Verfahren und anlage zur vermeidung des schrottanfalles in kontinuierlichen breitbandstrassen
GB2167170B (en) * 1984-11-21 1988-05-18 Salem Furnace Heat treatment of coils of metal
US5383651A (en) * 1994-02-07 1995-01-24 Pyrotek, Inc. Aluminum coil annealing tray support pad
DE4434370C2 (de) * 1994-09-15 1998-05-28 Mannesmann Ag Ofenanlage als Zwischenspeicher hinter einer Dünnbrammengießanlage
DE19512953A1 (de) * 1995-03-28 1996-10-02 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von warmgewalztem Stahlband

Also Published As

Publication number Publication date
JP2001523762A (ja) 2001-11-27
DE59805451D1 (de) 2002-10-10
ZA9810397B (en) 1999-05-13
WO1999025883A1 (de) 1999-05-27
ATE223508T1 (de) 2002-09-15
AU1235299A (en) 1999-06-07
EP1032716A1 (de) 2000-09-06
CA2310411A1 (en) 1999-05-27
AU734790B2 (en) 2001-06-21
AR014024A1 (es) 2001-01-31
TW490491B (en) 2002-06-11
DE19750998C1 (de) 1999-08-19

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