EP1490524B1 - Procede et un dispositif pour transmettre la chaleur par convection entre un support de transmission thermique et la surface d'une piece - Google Patents

Procede et un dispositif pour transmettre la chaleur par convection entre un support de transmission thermique et la surface d'une piece Download PDF

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Publication number
EP1490524B1
EP1490524B1 EP03717150A EP03717150A EP1490524B1 EP 1490524 B1 EP1490524 B1 EP 1490524B1 EP 03717150 A EP03717150 A EP 03717150A EP 03717150 A EP03717150 A EP 03717150A EP 1490524 B1 EP1490524 B1 EP 1490524B1
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EP
European Patent Office
Prior art keywords
heat transfer
transfer medium
nozzle walls
coil
nozzle
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
EP03717150A
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German (de)
English (en)
Other versions
EP1490524A2 (fr
EP1490524B2 (fr
Inventor
Rolf-Josef Schwartz
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.)
SCHWARTZ, EVA
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Individual
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Priority claimed from DE10227499A external-priority patent/DE10227499A1/de
Application filed by Individual filed Critical Individual
Publication of EP1490524A2 publication Critical patent/EP1490524A2/fr
Application granted granted Critical
Publication of EP1490524B1 publication Critical patent/EP1490524B1/fr
Publication of EP1490524B2 publication Critical patent/EP1490524B2/fr
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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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • 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

Definitions

  • the invention relates to a method for convective heat transfer between a heat transfer medium and a Surface, especially the end face of a wound Metal strip in the form of a coil, wherein the surface by means of at least one nozzle wall with the heat transfer medium is charged.
  • the invention further relates to a device for implementation the method of convective heat transfer between a heat transfer medium and a surface.
  • German Patent 35 03 089 C2 is a device for uniform application of a flat surface a workpiece with a gas known.
  • the Surface of the workpiece is in particular to the end face of a cylindrical band collar.
  • the admission with the gas via slot-shaped nozzle openings in a nozzle bottom, wherein the nozzle openings in at an angle to the surface of the band.
  • German Patent 196 50 965 C1 discloses a device for uniform application of a flat surface a workpiece with a fluid known.
  • the Surface of the workpiece is preferably also around the face of a cylindrical band.
  • the Nozzle bottom for impinging with the fluid is designed such that at the nozzle openings facilities for diversion the jets are provided in one direction, which with the perpendicular to the nozzle bottom or at a essentially plan nozzle bottom with the flat reference surface forms an angle.
  • the object of the invention is therefore to provide a method for convective Heat transfer between a heat transfer medium and a surface, in particular the front side a metal strip in the form of a wound cylindrical Coils, through which provide as uniform as possible and high heat transfer is realized without it too Impairment of the workpiece comes.
  • the object of the invention is also a device for To provide implementation of the method.
  • this object is achieved in that at the convective heat transfer between a heat transfer medium and a surface, in particular one Front side of a metal band in the form of a wound Coils, the surface with the heat transfer medium by means at least one nozzle wall is acted upon, wherein at least one of the nozzle walls during the heat treatment and move the surface to be treated to each other.
  • a generic Device for convective heat transfer between a heat transfer medium and a surface in particular a front side of a metal strip in the form a wound coil, means for impinging the surface with the heat transfer means by means of at least a nozzle wall are provided, wherein at least one of Nozzle walls and the surface to be treated during the Heat treatment are mutually movable.
  • the nozzle walls can be movable be executed while the coil is fixed. Furthermore, can move the coil while the nozzle walls are fixed, and a combination of the two previous designs can include both movable nozzle walls and coils.
  • a chamber furnace known design is equipped so that to the two end faces of an inserted cylindrical Coils each have a nozzle wall, which is about an axis of rotation is rotatable, wherein the axis of rotation is preferably the major axis of the cylindrical coil corresponds or essentially parallel to this runs.
  • the rotatable nozzle walls are provided with several nozzles, their arrangement and execution suitable for the purpose selected is. It can, for example, known hole, pipe, Slot and / or swirl nozzles are used.
  • a gas via a pressure box in the nozzle walls promoted and flows through the nozzles on the faces the coil to be heated or cooled.
  • FIG. 1 is a section through a particular preferred embodiment of a device for convective heat transfer between a heat transfer medium and a surface, in particular the end face a wound metal strip in the form of a cylindrical Coils, shown.
  • a heat transfer medium can Fluid or a gas are used. In this embodiment a gas is used to transfer heat.
  • the device comprises a pressure box 20 into which the heating or cooling coil 30 is introduced.
  • the coil is a cylindrically wound metal band.
  • the illustrated metal band is about an axis 70 wrapped, which runs horizontally in the figure, so that at the end faces 31 and 32 of the coil plane surfaces result. Essentially parallel to these end faces of the coil is in each case a nozzle wall 10 and 11th
  • the mobility of the nozzle walls and the faces of the Coils to each other in the illustrated embodiment achieved through moving nozzle walls while the coil is in operation the heat treatment is fixed.
  • the nozzle walls 10 and 11 are rotatable about a rotation axis 71, which preferably the major axis 70 of the cylindrical coil 30 corresponds or substantially parallel to this runs.
  • the rotation of the nozzle walls via a drive 40 which is not shown in detail in Fig. 1, but graphically characterized by ellipsoid motion arrows is.
  • the gas for heating or cooling of the coils are introduced into the pressure box 20.
  • the gas may be different types of gas suitable for the particular application.
  • N 2 , N 2 H 2 , air, water vapor, inert gas, hydrogen, exogas, or endogas can be used.
  • the flow of the gas within the pressure box is indicated graphically by arrows.
  • the gas flows through the nozzle walls 10 and 11 on each one end side of the coil.
  • the nozzle walls have for this purpose a plurality of openings, which may be formed differently.
  • slot nozzles 50 were selected, as can be seen in the illustration in FIG.
  • the gas flows out of the nozzle openings and bounces on the front sides of the coil, where the heat transfer takes place. This applies both to the heating and to the cooling of the coil material.
  • the device on the dimensions of various To be able to adjust coils, it has turned out to be expediently, the nozzle walls 10 and 11 additionally movable along its axis of rotation 71 perform. Thereby can the distance 60 between the nozzle walls and end faces the coil to the optimum distance for an effective Adjust the flow.
  • the drive 40 for this movement is not shown in detail in Fig. 1, but characterized by horizontal movement arrows.
  • the tightness between the nozzle walls and pressure box can ensure the seal adapted in various ways to the requirements become.
  • the sealing gap may be low or the seal designed as a labyrinth or contact seal become.
  • FIG. 2 is a plan view of a pressure chamber 20 can be seen with a circular nozzle wall 10.
  • the rotating nozzle wall is in this embodiment designed with slot nozzles 50. But there may be others Nozzle types such as hole, pipe or swirl nozzles are used. Pipe nozzles, for example, with an inner Swirl body be provided, as shown in Fig. 4.
  • FIG. 3 is a particularly preferred Embodiment of a chamber furnace with integrated erfindunmultier Device for heat transfer shown.
  • the pressure box 20 is located within the furnace and a to be heated or cooled coil 30 is between the positioned both nozzle walls 10 and 11.
  • the feed the furnace with a coil takes place in this embodiment from below, which is drawing below the chamber of the Furnace is shown by dashed lines.
  • the control of the chamber furnace preferably takes place via control means with a program which expediently controls and regulates at least the temperature and the speed of the heat transfer medium in such a way that the best possible heat transfer is achieved. If an embodiment is selected with nozzle walls that are movable along their axis of rotation, the distance between the nozzle wall and end face of the coil can also be controlled and regulated so that the best possible flow adjusts.
  • Fig. 4 is a preferred embodiment of the in the Düserschin 10,11 arranged nozzles in the form of a pipe nozzle 81 with swirl body 82 arranged therein.
  • the inventive design of a device with nozzle walls, the to the faces of the to be heated or to Cooling coils are designed to be movable, has different Advantages.
  • By the uniform admission of the Coils with the gas there are no temperature peaks or - sinking, which affects the coil material could lead.
  • the uniform loading of the coil with the heat transfer medium also leads to a better heat transfer than in conventional plants, reducing the residence time of the Workpieces in the ovens can be lowered. This makes possible Energy savings and a reduction in throughput times.
  • the installation of a separating nozzle box improves the degree of utilization the plant additionally.

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)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Furnace Details (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Claims (16)

  1. Procédé pour le transfert thermique par convection entre un moyen thermoconducteur et une surface, en particulier la face de la dent d'une bobine rubanée en forme d'un feuillard, laquelle surface étant alimentée par au moins une paroi des tuyères avec le moyen thermoconducteur,
    caractérisé en ce que
    pendant le traitement thermique au moins une des parois des tuyères (10; 11) et la surface étant à alimenter bougent l'une vers l'autre.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    les parois des tuyères (10; 11) bougent, tandis que la surface étant à alimenter est fixée.
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    les parois des tuyères (10; 11) sont fixées, tandis que la surface étant à alimenter bouge.
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    et les parois des tuyères (10; 11) et la surface étant à alimenter bougent.
  5. Dispositif pour le transfert thermique par convection entre un moyen thermoconducteur et une surface, en particulier la face de la dent d'une bobine rubanée en forme d'un feuillard, lequel dispositif prévoyant des moyens pour alimenter la surface avec le moyen thermoconducteur par au moins une paroi des tuyères,
    caractérisé en ce que
    au moins une des parois des tuyères (10; 11) et la surface étant à alimentée sont bougéables, l'une vers l'autre pendant le traitement thermique.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    les parois des tuyères (10; 11) sont tournantes autour d'un axe de rotation (71), qui correspond à l'axe principal (70) d'un feuillard (30) ou déroule pour l'essentiel d'une façon parallèle à celui, lesquelles parois des tuyères (10; 11) déroulent pour l'essentiel d'une façon parallèle aux faces de la dent (31; 32) du feuillard.
  7. Dispositif selon une ou plusieurs des revendications précédentes,
    caractérisé en ce que
    le moyen thermoconducteur est un fluide ou un gaz.
  8. Dispositif selon une ou plusieurs des revendications 5 à 7,
    caractérisé en ce que
    le dispositif contient au moins une boite d'impression (20), dans laquelle sont arrangés au moins un feuillard (30) et deux parois des tuyères (10; 11), lesquelles parois des tuyères étant arrangées aux faces de la dent (31; 32) du feuillard (30).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    un moyen thermoconducteur est guidable à travers de la boite d'impression (20) et des parois des tuyères (10; 11) envers les faces de la dent (31; 32) du feuillard (30).
  10. Dispositif selon la revendication 9,
    caractérisé en ce que
    un ventilateur souffle un gaz dans et/ou à travers de la boite d'impression (20).
  11. Dispositif selon une ou plusieurs des revendications 5 à 10,
    caractérisé en ce que
    les parois des tuyères (10; 11) montrent des filtres de soufflage, des filières de tubes, de trou et/ ou des filières giratoires.
  12. Dispositif selon la revendication 11,
    caractérisé en ce que
    les parois des tuyères (10; 11) montrent des filières de tubes (81), qui sont munies chaque une avec un corps intérieur de giration (82).
  13. Dispositif selon une ou plusieurs des revendications 8 à 12,
    caractérisé en ce que
    le joint entre les parois des tuyères (10; 11) et la boite d'impression (20) est exécuté comme joint au labyrinthe ou comme joint au contacte.
  14. Dispositif selon une ou plusieurs des revendications 5 à 13,
    caractérisé en ce que
    le dispositif montre des moyens de commande, qui dirigent au moins la température et la vitesse du moyen thermoconducteur.
  15. Dispositif selon la revendication 14,
    caractérisé en ce que
    les moyens de commande contiennent un programme de commande et de réglage, qui dirige au moins la température et la vitesse du moyen thermoconducteur.
  16. Une unité de four,
    caractérisée en ce que elle montre au moins un dispositif pour le transfert thermique par convection d'un moyen thermoconducteur à une surface, lequel dispositif étant décrit par une ou plusieurs des revendications 5 à 15.
EP03717150A 2002-03-15 2003-03-17 Procede et un dispositif pour transmettre la chaleur par convection entre un support de transmission thermique et la surface d'une piece Expired - Lifetime EP1490524B2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10211749 2002-03-15
DE10211749 2002-03-15
DE10227499 2002-06-19
DE10227499A DE10227499A1 (de) 2002-03-15 2002-06-19 Verfahren und Vorrichtung zur konvektiven Wärmeübertragung zwischen einem Wärmeübertragungsmittel und der Oberfläche eines Werkstückes
PCT/DE2003/000864 WO2003078665A2 (fr) 2002-03-15 2003-03-17 Procede et un dispositif pour transmettre la chaleur par convection entre un support de transmission thermique et la surface d'une piece

Publications (3)

Publication Number Publication Date
EP1490524A2 EP1490524A2 (fr) 2004-12-29
EP1490524B1 true EP1490524B1 (fr) 2005-08-24
EP1490524B2 EP1490524B2 (fr) 2009-01-21

Family

ID=28042845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03717150A Expired - Lifetime EP1490524B2 (fr) 2002-03-15 2003-03-17 Procede et un dispositif pour transmettre la chaleur par convection entre un support de transmission thermique et la surface d'une piece

Country Status (4)

Country Link
EP (1) EP1490524B2 (fr)
AT (1) ATE302858T1 (fr)
AU (1) AU2003221601A1 (fr)
WO (1) WO2003078665A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503089A1 (de) † 1985-01-30 1986-07-31 Carl Prof. Dr.-Ing. 5100 Aachen Kramer Vorrichtung zur gleichmaessigen beaufschlagung einer planen flaeche mit einem gas
JPH05177240A (ja) * 1992-01-07 1993-07-20 Nippon Steel Corp 熱延コイルの冷却方法
DE29603022U1 (de) † 1996-02-21 1996-04-18 Ipsen Industries International GmbH, 47533 Kleve Vorrichtung zum Abschrecken metallischer Werkstücke
DE19650965C1 (de) † 1996-12-07 1998-08-13 Kramer Carl Vorrichtung zur gleichmäßigen Beaufschlagung einer planen Oberfläche eines Werkstückes mit einem Fluid
JP3370562B2 (ja) * 1997-03-31 2003-01-27 川崎製鉄株式会社 熱延コイルの冷却方法およびその装置

Also Published As

Publication number Publication date
EP1490524A2 (fr) 2004-12-29
EP1490524B2 (fr) 2009-01-21
ATE302858T1 (de) 2005-09-15
WO2003078665A3 (fr) 2003-12-18
AU2003221601A1 (en) 2003-09-29
AU2003221601A8 (en) 2003-09-29
WO2003078665A2 (fr) 2003-09-25

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