EP1486573B1 - Procédé et installation de refroidissement d'une bande métallique en défilement - Google Patents

Procédé et installation de refroidissement d'une bande métallique en défilement Download PDF

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Publication number
EP1486573B1
EP1486573B1 EP03291389A EP03291389A EP1486573B1 EP 1486573 B1 EP1486573 B1 EP 1486573B1 EP 03291389 A EP03291389 A EP 03291389A EP 03291389 A EP03291389 A EP 03291389A EP 1486573 B1 EP1486573 B1 EP 1486573B1
Authority
EP
European Patent Office
Prior art keywords
strip
roller
cooling
support roller
principal
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
EP03291389A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1486573A1 (fr
Inventor
Hugues Cornil
Yann Greday
Benoít Deweer
Stéphane Lecomte
Jacques Mottoulle
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.)
ArcelorMittal France SA
Original Assignee
USINOR SA
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
Priority to EP03291389A priority Critical patent/EP1486573B1/fr
Application filed by USINOR SA filed Critical USINOR SA
Priority to AT03291389T priority patent/ATE312948T1/de
Priority to DE60302777T priority patent/DE60302777T2/de
Priority to ES03291389T priority patent/ES2253645T3/es
Priority to RU2006100290/02A priority patent/RU2336338C2/ru
Priority to US10/560,175 priority patent/US7527701B2/en
Priority to BRPI0411380-2A priority patent/BRPI0411380B1/pt
Priority to CA2528688A priority patent/CA2528688C/fr
Priority to JP2006516279A priority patent/JP4676432B2/ja
Priority to PCT/FR2004/001441 priority patent/WO2004111280A2/fr
Priority to CNB2004800159915A priority patent/CN100424194C/zh
Publication of EP1486573A1 publication Critical patent/EP1486573A1/fr
Application granted granted Critical
Publication of EP1486573B1 publication Critical patent/EP1486573B1/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
    • C21D9/5735—Details
    • C21D9/5737—Rolls; Drums; Roll arrangements
    • 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

Definitions

  • the present invention relates to a method and a cooling installation of a metal strip in scrolling.
  • Known methods of cooling by roll consist of applying a tape that moves in a continuous movement on at least one roll of cooling inside which circulates a liquid refrigerant, especially cold water.
  • the roll is mobile in rotation about its axis, being driven either by the friction of the moving strip or by a motorized set clean.
  • the band thus applied on the roll forms an arc whose intrados delimits with the outer surface of the roller a contact zone adapted for evacuate towards the inside of the roll part of the heat of the band.
  • JP-A-60 255 933 discloses a method and an installation cooling of a scrolling steel strip during the continuous annealing or galvanizing.
  • each of these rollers support is mounted for free rotation around its axis, the end of rigid arms, whose distance from to the cooling roll is predetermined in function of the thickness of the band.
  • the object of the present invention is to propose a process and a cooling installation of a band metallic scrolling, which allow to maintain firmly tape against a cooling roll, while controlling this cooling and without impair the surface condition of the strip.
  • the subject of the invention is also a plant of cooling a scrolling metal strip, said strip to be cooled being moved continuously, of the type having a main cooling roll on which the band is applied to form an arc whose the intrados demarcates with the outside face of this roll a contact zone adapted to evacuate inwards of the main cooling roll part of the heat of the tape, and at least one backup roll on the extrados of the arc formed by the strip, adapted for keep the tape in contact on the roll of main cooling, the or each support roll being disposed substantially parallel to the roll of main and mobile cooling in rotation around its axis, characterized in that the or each roller of support is constituted, at least at the periphery, of a an elastically deformable and thermo-capacitive material, and in that the installation comprises means for secondary cooling adapted to form with a part of the outer face of the or each support roll a zone of heat transfer to these means of secondary cooling to remove heat transmitted from the tape to the or each backup roll.
  • This installation is for example used in coating treatments of the band, especially under vacuum.
  • the cooling roll main 10 and the secondary cooling roll 16 are able to evacuate calories from their face outside towards the inside of the rollers when a body hot is applied on them.
  • the rollers 10 and 16 comprise, in known manner, a double envelope to circulate in the inner periphery of these rolls a refrigerant, such as cold water.
  • refrigerant such as cold water.
  • Other types of contact cooling rollers known to those skilled in the art, are conceivable.
  • the support roller 14 meanwhile formed of a piece cylindrical monoblock of axis Z-Z or a stack of coaxial cylinders of small thickness dependent or not.
  • the roller 14 is made of an elastic material deformable, especially elastomer.
  • the expression "elastically deformable material” should be considered as generally referring to a material whose modulus of elasticity (or Young's modulus) is significantly lower than that of the material forming the band 2, for reasons developed later.
  • a suitable elastomer there may be mentioned a vulcanized silicone.
  • the material constituting the support roll 14 presents in addition conductivity and capacitance properties preferred thermals, namely that it should not be totally or almost totally resistant to heat conduction, as could be for example a ceramic material but does not need either necessarily ensure a significant conduction like a current metal alloy. It must also be able to store within it the thermal energy withdrawn at the bandaged.
  • the elastomer of which the support roll is made 14 has for example a conductivity coefficient less than about 1 W / m.K (watt per meter and by Kelvin) and a high heat capacity, for example on the order of 1000 J / kg.K (joule per kilogram and per Kelvin).
  • the diameter of the roller 14 is preferably included between one fourth and one tenth of the diameter of the roll 10. From more, the length of this roller 14 is at least slightly greater than the width of the strip 2.
  • Tape 2 coming upstream of the installation 1 of an adjoining production facility, a coil or of a heating installation not shown, arrives in entry of plant 1 at a temperature considered as hot, especially between the temperature ambient and a high temperature beyond which the material constituting the support roll 14 may be degraded, that is to say for example between the temperature ambient and about 200 ° C. His training may be at less partially provided by the cylinder 8A.
  • the strip 2 is, at the output of the cylinder 8A, applied on the main cooling roll 10, around which the band forms the largest possible arc, by example of about 240 °, whose intrados is in contact with the outer face of the cylinder 10.
  • the arc formed by the strip 2 is preferably in its winding start zone, kept in pressed contact on this roll by the rollers support 14.
  • the relative position of the roller 14 with respect to the outer surface of the roll 10 is either pre-set, in particular depending on the thickness of the strip 2, controlled by elastically support means deformable so that the upper surface of strip 2 is subject to sufficient contact pressure to smooth out the band along its width and to favor the transfer heat of the cooling roll strip 10 into increasing the contact area between the lower surface of this band and the outer face of this roll.
  • the low rigidity of the material forming the rollers support limits the risk of marking the upper surface of the band, even in the case where there is a lack of parallelism between the Z-Z and X-X axes.
  • band 2 presents then a good transverse flatness.
  • the material forming the support rollers 14 being thermo-capacitive, part of the heat of the tape is transferred from the tape to the backup roll, thus ensuring a complementary cooling of the bandaged.
  • Scrolling the strip 2 causes the roll 14 in rotation about its axis, this roller 14 driving the cooling roller itself 16.
  • the contact area that the roller holds 14 with the roller 16 allows the transfer of heat from the peripheral portion of the roller 14 to the inside of the roll 16. Since the material forming the support rollers is highly thermo-capacitive, the heat transferred from the tape to the backup roll 14 is stored on the periphery of roll 14 before being in turn transferred to the cooling rollers 16.
  • the band 2 wraps around of the deflector roll 8B and leaves the installation 1.
  • the method according to the invention thus makes it possible to cool in a controlled way the band 2, without damaging or marking its surfaces.
  • the cooling obtained is at once homogeneous, thereby ensuring the homogeneity of the qualities of the cooled band, and fast, which reduces the duration of cooling and so the length of the area corresponding.
  • rollers 14 The use of elastomer to form the rollers 14 is inexpensive and the roll of secondary cooling 16 is a technology already existing. Moreover, the fluid circulation network refrigerant sent to the main cooling roll 10 can advantageously be used, for example by means of of taps, to feed the roll of secondary cooling 16. In other words, from of a pre-existing cooling installation, the investment cost to have an installation according to the invention is minimal.
  • FIG. 2 shows a variant of the installation 1 which differs from that of Figure 1 by, on the one hand, setting up, between the roll of main cooling 10 and the roll of secondary cooling 16, two support rollers 14 instead of one, and, secondly, replacing the cylinder 8B outlet baffle by a second cylinder of main cooling 12, for example analogous to roll 10.
  • the operation of this installation is substantially similar to that of Figure 1.
  • Tests 1 and 2 are performed without any roll while tests 3 and 4 are carried out with the two support rollers 14 of elastomer as shown in Figure 2.
  • the surface layer of material of the rollers 14 can reach for a fairly short time, of the order the duration of the contact, the temperature of the band 2 with which rollers are in contact. This is especially the case when the tape speed is low, for example of the order of 20 m / min for the example of setting detailed in Tables 1 and 2 above.
  • the contact time of the elastomer on the band is not sufficient for the heat exchange to be complete, the temperature of the elastomer remaining then less than that of the band. So, for a speed of scrolling of the order of 150 m / min, which corresponds to a scroll speed for an industrial installation, and for an input temperature of the band of the order of 150 ° C, the elastomer locally reaches a maximum of one temperature of the order of 100 ° C, which corresponds to a current service temperature for most vulcanized elastomers.
  • Figure 3 represents a main cooling roll 10 associated with five support rollers 14 and four rollers of secondary cooling 16.
  • the support roller or rollers 14 can have a multilayer structure, only the one and / or the outer layers to have the characteristics of flexibility and thermal capacity detailed above to achieve the invention.
  • cooling roller 16 is replaceable by other means of cooling secondary, such as gas-jet quenching systems as long as these means form with part of the face external support rollers a sufficient area heat evacuation.

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Continuous Casting (AREA)
EP03291389A 2003-06-11 2003-06-11 Procédé et installation de refroidissement d'une bande métallique en défilement Expired - Lifetime EP1486573B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
AT03291389T ATE312948T1 (de) 2003-06-11 2003-06-11 Verfahren und vorrichtung zur kühlung eines sich bewegenden metallischen bandes
DE60302777T DE60302777T2 (de) 2003-06-11 2003-06-11 Verfahren und Vorrichtung zur Kühlung eines sich bewegenden metallischen Bandes
ES03291389T ES2253645T3 (es) 2003-06-11 2003-06-11 Procedimiento e instalacion de refrigeracion de una banda metalica en movimiento.
EP03291389A EP1486573B1 (fr) 2003-06-11 2003-06-11 Procédé et installation de refroidissement d'une bande métallique en défilement
US10/560,175 US7527701B2 (en) 2003-06-11 2004-06-09 Method and plant for cooling a moving metal strip
BRPI0411380-2A BRPI0411380B1 (pt) 2003-06-11 2004-06-09 Processo e instalação de resfriamento de uma tira metálica em movimento
RU2006100290/02A RU2336338C2 (ru) 2003-06-11 2004-06-09 Способ и установка для охлаждения металлической ленты при ее протягивании
CA2528688A CA2528688C (fr) 2003-06-11 2004-06-09 Procede et installation de refroidissement d'une bande metallique en defilement
JP2006516279A JP4676432B2 (ja) 2003-06-11 2004-06-09 移動する金属ストリップを冷却するための方法およびプラント
PCT/FR2004/001441 WO2004111280A2 (fr) 2003-06-11 2004-06-09 Procede et installation de refroidissement d'une bande metallique en defilement
CNB2004800159915A CN100424194C (zh) 2003-06-11 2004-06-09 用于冷却移动的金属带材的方法和组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03291389A EP1486573B1 (fr) 2003-06-11 2003-06-11 Procédé et installation de refroidissement d'une bande métallique en défilement

Publications (2)

Publication Number Publication Date
EP1486573A1 EP1486573A1 (fr) 2004-12-15
EP1486573B1 true EP1486573B1 (fr) 2005-12-14

Family

ID=33185988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291389A Expired - Lifetime EP1486573B1 (fr) 2003-06-11 2003-06-11 Procédé et installation de refroidissement d'une bande métallique en défilement

Country Status (11)

Country Link
US (1) US7527701B2 (pt)
EP (1) EP1486573B1 (pt)
JP (1) JP4676432B2 (pt)
CN (1) CN100424194C (pt)
AT (1) ATE312948T1 (pt)
BR (1) BRPI0411380B1 (pt)
CA (1) CA2528688C (pt)
DE (1) DE60302777T2 (pt)
ES (1) ES2253645T3 (pt)
RU (1) RU2336338C2 (pt)
WO (1) WO2004111280A2 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143504A1 (de) * 2008-07-07 2010-01-13 Siemens Aktiengesellschaft Verfahren zum Kühlen eines zu einem Warmbandbund aufgehaspelten Warmbands, eine Vorrichtung zum Kühlen eines Warmbandbundes, eine Steuer- und/oder eine Regeleinrichtung und Metallband
JP2011042814A (ja) * 2009-08-19 2011-03-03 Chugai Ro Co Ltd 金属ストリップの冷却装置及び冷却方法
DE102012020622A1 (de) * 2012-10-19 2014-04-24 Maschinenfabrik Niehoff Gmbh & Co Kg Vorrichtung zur Wärmeübertragung bei der Herstellung von langgestrecktem Stranggut
CN103358599A (zh) * 2013-08-02 2013-10-23 常熟市沪虞港口机械有限公司 纸箱机械用瓦楞辊结构
CN109746271B (zh) * 2019-01-14 2020-04-10 中南大学 一种高性能铜箔的深冷叠轧制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5743939A (en) * 1980-08-29 1982-03-12 Nippon Steel Corp Structure for turning and conveying strip in continuously annealing furnace
JPS60255933A (ja) * 1984-05-30 1985-12-17 Nisshin Steel Co Ltd 金属帯冷却装置
JPS61243127A (ja) * 1985-04-18 1986-10-29 Nippon Steel Corp 金属ストリツプの冷却方法
JPH0830221B2 (ja) * 1988-06-30 1996-03-27 川崎製鉄株式会社 金属ストリップの連続熱処理方法
FR2651795B1 (fr) * 1989-09-14 1993-10-08 Sollac Dispositif de refroidissement par contact de rouleaux pour la trempe en continu d'une bande d'acier prechauffee.
JPH03170619A (ja) * 1989-11-30 1991-07-24 Kawasaki Steel Corp 連続焼鈍炉のロール冷却装置
US5182074A (en) * 1990-07-31 1993-01-26 Nkk Corporation Apparatus for continuously cooling metal strip
JPH079044B2 (ja) * 1990-08-28 1995-02-01 日本鋼管株式会社 連続焼鈍炉におけるストリップ冷却装置
WO1994000605A1 (fr) * 1992-06-23 1994-01-06 Nkk Corporation Dispositif et procede de refroidissement de feuillard
AT407880B (de) * 1997-09-22 2001-07-25 Ebner Peter Dipl Ing Anlage zur kontinuierlichen wärmebehandlung eines stahlbandes
JP2001323325A (ja) * 2000-05-11 2001-11-22 Nippon Steel Corp 金属帯板の冷却装置および冷却方法
RU2201461C1 (ru) * 2002-04-16 2003-03-27 Урцев Владимир Николаевич Линия для охлаждения рулонной полосы после отжига

Also Published As

Publication number Publication date
WO2004111280A2 (fr) 2004-12-23
ATE312948T1 (de) 2005-12-15
CA2528688C (fr) 2012-03-06
CN100424194C (zh) 2008-10-08
WO2004111280A3 (fr) 2005-02-17
BRPI0411380A (pt) 2006-08-01
CN1802444A (zh) 2006-07-12
RU2336338C2 (ru) 2008-10-20
US7527701B2 (en) 2009-05-05
JP2006527307A (ja) 2006-11-30
EP1486573A1 (fr) 2004-12-15
RU2006100290A (ru) 2006-06-10
US20060254682A1 (en) 2006-11-16
JP4676432B2 (ja) 2011-04-27
DE60302777T2 (de) 2006-07-06
BRPI0411380B1 (pt) 2014-08-12
ES2253645T3 (es) 2006-06-01
CA2528688A1 (fr) 2004-12-23
DE60302777D1 (de) 2006-01-19

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