EP1687455B1 - Kühlprozess und -vorrichtung für eine stahlplatte - Google Patents

Kühlprozess und -vorrichtung für eine stahlplatte Download PDF

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Publication number
EP1687455B1
EP1687455B1 EP04797129A EP04797129A EP1687455B1 EP 1687455 B1 EP1687455 B1 EP 1687455B1 EP 04797129 A EP04797129 A EP 04797129A EP 04797129 A EP04797129 A EP 04797129A EP 1687455 B1 EP1687455 B1 EP 1687455B1
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EP
European Patent Office
Prior art keywords
strip
tubes
cooling
loss
temperature
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EP04797129A
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English (en)
French (fr)
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EP1687455A1 (de
Inventor
Stéphane Lecomte
André Fouarge
Denis Bouquegneau
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ArcelorMittal France SA
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Arcelor France SA
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Priority to EP04797129A priority Critical patent/EP1687455B1/de
Priority to PL04797129T priority patent/PL1687455T3/pl
Publication of EP1687455A1 publication Critical patent/EP1687455A1/de
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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
    • 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
    • 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
    • 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
    • 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
    • C21D1/63—Quenching devices for bath 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
    • 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

Definitions

  • the present invention relates to a device for the implementation of the cooling of a steel strip, in the context of a continuous annealing process.
  • this cooling is achieved by means of immersed water jets.
  • This cooling operation can be carried out consecutively to a first cooling operation in a boiling water bath.
  • Continuous annealing is a thermochemical treatment that is applied to steel strips after cold rolling.
  • the "strip" of steel is the steel product which, when cut, will produce sheets used in particular for the manufacture of automobile bodies, carcasses of household appliances, etc.
  • the continuous annealing process involves scrolling the steel strip through an oven where it is exposed to controlled heating and cooling.
  • the steel strip travels vertically along a series of successive strands, up and down, and thus scrolls sequentially through the various processing steps.
  • the cooling phase plays a particularly crucial role since it makes it possible, in certain cases, to reduce the concentration of expensive alloying elements necessary for the production of particular microscopic structures, for example of the "dual phase” type. , multiphase, "HLE” (High Limit Elastic), etc.
  • the cooling process therefore corresponds to a significant metallurgical and economic challenge.
  • the achievable cooling rates are relatively low, namely about 50 ° C / sec for a 1mm thick steel strip.
  • This limitation stems from the fact that when a steel strip is immersed at high temperature in a boiling water bath, a stable vapor film is formed in the vicinity of its surface, in a so-called “caulking" regime, which considerably limits heat exchange.
  • the term “calefaction” is understood to mean the presence of a vapor film, generated by high boiling, between a hot wall and a fluid which is either a liquid or a two-phase mixture of liquid and vapor, this presence resulting in a poor transfer of heat between the wall and the fluid.
  • the temperature of the steel strip at the outlet of the boiling water bath must remain above 300 ° C.
  • the temperature of the strip becomes lower than this temperature, the vapor film becomes unstable and it goes into so-called nucleate boiling regime. In the latter regime, regions adjacent to the band are subjected to different heat fluxes, which creates significant temperature differences. These temperature gradients induce in the steel mechanical stresses, which risk creating plastic deformations, therefore permanent and lead to flatness defects.
  • the strip is first cooled in a water bath whose temperature is higher than 60 ° C., up to a temperature of between 200 and 500 ° C. temperature range in which the transition between film boiling and nucleate boiling occurs. It is then recommended to cool the strip just before or just after the transition by means of immersed water jets until the strip reaches the temperature of the bath.
  • JP-A-60 009834 uses a set of cooling ramps, disposed on either side of the steel strip, and immersed in a tank of water whose temperature is between 60 and 75. % of the boiling temperature. For a given configuration of the spray booms, a laminar flow is generated, which prevents the formation of a vapor film in the vicinity of the steel strip.
  • Another document proposes to use the jets impact pressure in order to eliminate the deformations of the band during quenching (see JP-A-11 193418).
  • the applicant recommends applying on both sides of the steel strip a pressure of at least 500 N / cm 2 .
  • the present invention aims at carrying out a so-called quenching operation, typically at a speed greater than 1000 ° C./s, applicable to products flat metallurgical materials, preferably of steel, in the form of cold-rolled strips.
  • This quenching operation must be carried out by means of jets of cold water, the temperature of which is preferably between 0 ° C. and 50 ° C., said jets being immersed.
  • the invention aims to ensure cooling conditions at high power levels as homogeneous as possible over the entire width of the steel strip, by controlling the flows within the device.
  • the temperature of the strip at the inlet of the device must be between 750 ° C. and 350 ° C. and the temperature at the outlet should preferably be between 0 ° C. and 150 ° C.
  • a first object of the present invention relates to a basic cooling device, for carrying out a quenching operation during the continuous annealing treatment of a flat product in the form of a metallurgical strip, preferably a steel strip, said device being located in a vertical strand ascending or descending, comprising a weir in which is completely immersed a plurality of tubes stacked substantially vertically and symmetrically on either side of the strip along the latter and which eject each, in form turbulent jets substantially horizontally, cooling fluid to the web through a slot or a plurality of holes.
  • the device is further provided in its lower part with sealing means.
  • any two successive tubes, arranged on the same side of the strip are separated by an identical interval for all the tubes in question. view of the evacuation of the cooling fluid. Said interval is then chosen, at a given value of the specific flow rate of the cooling fluid, expressed in cubic meters per hour and per square meter of one face of the strip, to minimize the pressure drop in the evacuation channels corresponding to said interval (the pressure drop for each interval and the total pressure drop are identical).
  • the wall of the weir located at the rear of the tubes, has a width at least equal to that of the tubes and the horizontal distance of this wall relative to the rear face of the tubes is chosen such that the loss of load caused by the presence of the weir is less than 5% of the pressure loss caused by the intervals between two successive tubes, which is considered negligible.
  • the flow is then two-dimensional.
  • the invention advantageously makes it possible to avoid local boiling phenomena by choosing a specific flow rate of the cooling fluid on one side of the strip of between 250 and 1000 m 3 per hour and per m 2 .
  • the maximum specific flow per face was about 580 m 3 per hour per m 2 .
  • the pressure drop caused by the intervals is less than 150 mm of water column.
  • the distance between the end of each tube and the band is identical for all the tubes and is between 50 mm and 200 mm.
  • the cooling fluid is liquid water maintained at a temperature below 50 ° C.
  • the device is located in substantially vertical strand amount (angular deviation from the vertical less than 30 °) while being directly preceded by a tank of water essentially brought to the boiling temperature.
  • the invention will advantageously be implemented in an installation where the metallurgical product to be treated has a running speed of between 0.25 m / s and 20 m / s, and a thickness of between 0.1 mm and 10 mm.
  • cooling tubes are dimensioned such that the ejection velocity of the cooling fluid is homogeneous over the entire bandwidth.
  • the tubes are dimensioned so that the velocity distribution is such that there is a relative difference between the maximum speed (V max ) and the minimum speed (V min ) of ejection according to the width of the tube less than 5. % or V max - V min V max ⁇ 0 , 05.
  • the ratio between the passage section of a tube and the free section of this tube is greater than 1 .
  • said tubes have a rectangular section.
  • the ratio of one side to an adjacent side of the rectangular section is 0.1 to 10 and the thickness of the tubes is 0.25 to 10 times the hole diameter or the thickness of the tube.
  • the slot in order to control the coherence of the jet, the ratio between the thickness of the tubes and the diameter of the holes being, if appropriate, still preferably equal to 2/3.
  • the aforementioned sealing means comprise a double pair of roll locks, allowing both the passage of the band and the creation of a pressure drop limiting to a minimum value leaks. down weir.
  • these sealing means also comprise injection means a fluid between the rollers, whose pressure and / or temperature can be controlled.
  • the upper tube is equipped with a dam whose height is at least equal to the sum of the thickness of the water plate at the weir and the height of the water column corresponding to the pressure drop between the maximum flow tubes.
  • a second object of the present invention relates to a quenching process during the continuous annealing treatment of a flat product in the form of a metallurgical strip, preferably a steel strip, using the device described under one of the embodiments above, to achieve a specific cooling power of between 1000 kW / m 2 and 10000 kW / m 2 per face of metallurgical product.
  • the temperature of the strip at the inlet of the device is between 350 ° C. and 750 ° C. and the temperature at the outlet is between 50 ° C. and 450 ° C., preferably between 50 ° C. and 450 ° C. ° C and 100 ° C or between 350 and 450 ° C.
  • Figure 1 schematically shows a sectional view of the cooling device according to the present invention.
  • Figure 2 schematically shows an arrangement of the holes for splashing water on the steel strip in the device of the present invention.
  • FIG. 3 graphically illustrates the thermal performance of the cooling device according to the invention.
  • Figure 4 illustrates the performance of said device in terms of flatness of the steel strip.
  • Figures 5 and 6 illustrate the impact of the uniformity of cooling on the homogeneity of the mechanical properties of the steel strip.
  • Figure 5 relates to a steel of the "dual phase" family
  • Figure 6 relates to a steel of the family of multiphase steels.
  • FIG. 7 schematically gives the different positions of the specimens taken as a function of the width of the sheet, for carrying out the tests relating to FIGS. 5 and 6.
  • Figure 8 shows the parameters for calculating the index of flatness, these parameters characterizing the sinusoid to which is assimilated the longitudinal profile of the strip at the edge.
  • the cooling device consists of a set of tubes 1, called “ramps” or “cooling ramps”, arranged symmetrically on either side of the steel strip to be cooled. These ramps are submerged and fed laterally with cooling fluid. Their section is preferably rectangular. In the following description of the invention, the terms “tubes” and “ramps” will be used indistinctly.
  • this sealing system located in the lower part of the device, which allows both the passage of the steel strip 2 and the creation of a maximum pressure drop of in such a way as to minimize the leakage rate of the coolant towards the bottom of the box.
  • this sealing system consists of a double pair of rollers 3, applied against the steel strip and positioned symmetrically with respect thereto. Between the rollers, a fluid is injected whose pressure and / or temperature can be controlled.
  • the cooling fluid is preferably water.
  • the cooling ramps are located at a distance A from the pass line of the strip 2. For reasons of space, on the one hand, and in order to limit the total flow in the system, for equivalent performance, on the other hand, the maximum distance between the belt and the cooling ramps is 200mm.
  • a space B is left between two successive ramps so that the water injected by the ramps can be evacuated between them. This ensures a flow as homogeneous as possible along the width of the steel strip.
  • the choice of the distance B results from a compromise between a maximum specific cooling power P, the specific power being defined as the cooling power per unit area and per band face to be cooled, and a minimum pressure drop across the evacuation channels, to ensure a sufficiently rapid renewal of the cooling fluid in the vicinity of the sheet, and thus prevent the formation of local boiling zones in the vicinity of the strip.
  • the distance B is chosen to be identical between two successive ramps for all the ramps, in order to ensure identical flow conditions in front of all the spray bars. This therefore makes it possible to obtain a vertical homogeneity of the flow. In this way, the cooling fluid injected by a given ramp is discharged by means of the channels directly adjacent to this ramp. This avoids creating preferential paths and minimizes the passage time of the cooling fluid in the vicinity of the band, always to avoid the local formation of boiling zones.
  • Each cooling ramp 1 is provided, on the face exposed to the strip, of at least one slot or a set of holes, as shown in Figure 2, for the projection of the cooling fluid to the strip.
  • the distance between two successive holes must be such that the flow in the near vicinity of the band can be likened to that of a slot.
  • the ejection velocity of the fluid must be sufficient to avoid forming boiling zones in the vicinity of the strip.
  • This ejection speed V is chosen as a function of the distance A with respect to the band and is typically between 0 and 10 m / s.
  • the device or cooling box Downstream of the evacuation channels, the device or cooling box comprises a spillway 4, over the entire width of the box and whose height corresponds to the level of the jet of the last ramp, which ensures that under all operating conditions, the last ramp is immersed in the same way as the others.
  • the cooling performances of the device were measured under industrial conditions by thermal balance on the basis of the following quantities: temperatures of the steel strip at the inlet and the outlet of the device, length of the section cooling and scrolling speed of the steel strip through the device.
  • Figure 3 shows that the specific cooling power, expressed in kW per square meter and per strip face, is a linear function of the specific flow rate, itself expressed in cubic meters per hour and per square meter for the two cumulative faces. Under the conditions envisaged here, the specific power is between 4000 and 6000kW / m 2 and per product face.
  • Figure 4 illustrates the performance of the device with respect to the flatness of the steel strip. They are the image of the homogeneity of the cooling and consequently of the control of the flows in the device. The characterization of flatness concerns here long banks.
  • Each point in the figure represents an operating point of the device - defined by the associated specific cooling power - at a given time during the industrial test campaign.
  • a flatness index expressed in "I" units, is associated.
  • a unit “I” corresponds to a relative elongation of 1mm per 100m of steel strip.
  • the longitudinal profile of the strip at the edge can be likened to a sinusoid, of wavelength L and of amplitude X.
  • FIG. 4 shows two reference thresholds, 120 and 240 "I" units, which correspond to the acceptable flatness tolerances for two electrogalvanizing lines. The figure shows that the majority of operating points are below the threshold of the most demanding line.
  • Figures 5 and 6 show the breaking load, yield point (Fig. 6) and elongation at 80% of the breaking load, respectively. It can be concluded from these observations that there is a good homogeneity of the mechanical properties according to the width of the band.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Coating With Molten Metal (AREA)

Claims (10)

  1. Kühlvorrichtung für die Durchführung eines Abschreckvorgangs bei einer Durchlauf-Glühbehandlung eines Flachprodukts in Form eines Metallbandes (2), vorzugsweise eines Stahlbandes, wobei die besagte Vorrichtung:
    - sich an einem im Wesentlichen senkrecht nach oben oder unten laufenden Abschnitt befindet,
    - eine Ablaufvorrichtung (4) umfasst, in die eine Mehrzahl von Rohren (1) vollständig eintauchen, die im Wesentlichen senkrecht und symmetrisch auf beiden Seiten des Bandes (2) und entlang desselben angeordnet sind und die jeweils eine Kühlflüssigkeit in einem im Wesentlichen horizontalen, turbulenten Strahl durch einen Schlitz oder eine Vielzahl von Öffnungen auf das Band spritzen,
    - in ihrem unteren Bereich mit Mitteln zur Abdichtung (3) ausgestattet ist,
    dadurch gekennzeichnet, dass zwei beliebige, aufeinander folgende Rohre (1), die sich auf der gleichen Seite des Bandes (2) befinden, durch einen Zwischenraum (B) getrennt sind, der für alle Rohre (1) gleich ist und für einen gegebenen spezifischen Durchflusswert des Kühlmittels in Kubikmetern pro Stunde pro Quadratmeter einer Seite des Bandes gewählt wird, um den Druckhöhenverlust in den Auslaufkanälen, die dem besagten Zwischenraum (B) entsprechen, zu minimieren.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Wand der Ablaufvorrichtung (4), die sich hinter den Rohren (1) befindet, eine Breite aufweist, die mindestens der der Rohre (1) entspricht, und der horizontale Abstand dieser Wand von der Rückwand der Rohre (1) wird so gewählt, dass der durch die Ablaufvorrichtung (4) verursachte Druckhöhenverlust weniger als 5% des von den Zwischenräumen (B) zwischen zwei aufeinander folgenden Rohren (1) verursachten Druckhöhenverlusts ausmacht.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der spezifische Durchfluss der Kühlflüssigkeit zwischen 250 und 1000 m3 pro Stunde pro m2 und pro Seite des Bandes entspricht.
  4. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der von den Zwischenräumen (B) verursachte Druckhöhenverlust weniger als 150 mm Wassersäule beträgt.
  5. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Abstand (A) zwischen dem Ende jedes Rohres (1) und dem Band (2) bei allen Rohren gleich ist und zwischen 20 mm und 200 mm beträgt.
  6. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die besagten Rohre (1) einen rechteckigen Querschnitt aufweisen.
  7. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Abdichtungsmittel (3) eine Schleuse mit Rollenpaaren umfassen, die gleichzeitig das Durchlaufen des Bandes (2) und die Erzeugung eines Druckhöhenverlusts ermöglichen, der die Lecks der Ablaufvorrichtung (4) nach unten auf ein Minimum begrenzt, und Mittel zum Einspritzen eines Mediums zwischen die besagten Rollenpaare, mit Druck- und/oder Temperaturkontrolle.
  8. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das obere Rohr (1) mit einem Damm (5) ausgestattet ist, dessen Höhe mindestens der Summe der Dicke des Wasserstreifens (H) und der Höhe der Wassersäule (ΔH) entsprechend dem Druckhöhenverlust zwischen den Rohren bei maximalem Durchfluss entspricht.
  9. Abschreckverfahren bei einer Durchlauf-Glühbehandlung eines Flachprodukts in Form eines Metallbandes, vorzugsweise eines Stahlbandes, bei der eine Vorrichtung nach einem der vorstehenden Ansprüche eingesetzt wird, um eine spezifische Kühlleistung zwischen 1000 kW/m2 und 10000 kW/m2 pro Seite des Metallprodukts zu erreichen.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die Temperatur des Bandes am Einlauf der Vorrichtung zwischen 350 °C und 750 °C beträgt und die Temperatur am Auslauf zwischen 50°C und 450°C, vorzugsweise zwischen 50°C und 100 °C oder zwischen 350°C und 450 °C.
EP04797129A 2003-12-01 2004-11-25 Kühlprozess und -vorrichtung für eine stahlplatte Active EP1687455B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04797129A EP1687455B1 (de) 2003-12-01 2004-11-25 Kühlprozess und -vorrichtung für eine stahlplatte
PL04797129T PL1687455T3 (pl) 2003-12-01 2004-11-25 Sposób i urządzenie do chłodzenia taśmy stalowej

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03447278A EP1538228A1 (de) 2003-12-01 2003-12-01 Verfahren und Vorrichtung zum Kühlen einer Stahlband
PCT/BE2004/000167 WO2005054524A1 (fr) 2003-12-01 2004-11-25 Procede et dispositif de refroidissement d'une bande d'acier
EP04797129A EP1687455B1 (de) 2003-12-01 2004-11-25 Kühlprozess und -vorrichtung für eine stahlplatte

Publications (2)

Publication Number Publication Date
EP1687455A1 EP1687455A1 (de) 2006-08-09
EP1687455B1 true EP1687455B1 (de) 2007-03-14

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EP03447278A Withdrawn EP1538228A1 (de) 2003-12-01 2003-12-01 Verfahren und Vorrichtung zum Kühlen einer Stahlband
EP04797129A Active EP1687455B1 (de) 2003-12-01 2004-11-25 Kühlprozess und -vorrichtung für eine stahlplatte

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EP03447278A Withdrawn EP1538228A1 (de) 2003-12-01 2003-12-01 Verfahren und Vorrichtung zum Kühlen einer Stahlband

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US (1) US7645417B2 (de)
EP (2) EP1538228A1 (de)
JP (1) JP2007512431A (de)
KR (1) KR101089082B1 (de)
CN (1) CN100465303C (de)
AT (1) ATE356891T1 (de)
AU (1) AU2004294469B2 (de)
BR (1) BRPI0416333B1 (de)
CA (1) CA2544269C (de)
DE (1) DE602004005362T2 (de)
DK (1) DK1687455T3 (de)
ES (1) ES2282918T3 (de)
PL (1) PL1687455T3 (de)
PT (1) PT1687455E (de)
RU (1) RU2356949C2 (de)
WO (1) WO2005054524A1 (de)

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FR2940978B1 (fr) * 2009-01-09 2011-11-11 Fives Stein Procede et section de refroidissement d'une bande metallique en defilement par projection d'un liquide
CN103849734B (zh) * 2012-12-06 2015-08-26 宝山钢铁股份有限公司 基于板形的淬火装置流量控制方法及其检测与控制装置
KR101451814B1 (ko) * 2012-12-20 2014-10-16 주식회사 포스코 강판 열처리용 급냉 장치
TWI616537B (zh) * 2015-11-19 2018-03-01 財團法人金屬工業研究發展中心 金屬材熱處理方法
JP6813036B2 (ja) * 2017-10-31 2021-01-13 Ｊｆｅスチール株式会社 厚鋼板の製造設備及び製造方法
US20230193442A1 (en) * 2017-11-17 2023-06-22 Sms Group Gmbh Method for the preoxidation of strip steel in a reaction chamber arranged in a furnace chamber
CN107754148A (zh) * 2017-12-08 2018-03-06 中国空气动力研究与发展中心高速空气动力研究所 超声速射流灭火组件及灭火器
WO2021024021A1 (en) 2019-08-06 2021-02-11 Arcelormittal Device for cooling a steel strip

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EP1687455A1 (de) 2006-08-09
KR101089082B1 (ko) 2011-12-07
PL1687455T3 (pl) 2007-08-31
RU2356949C2 (ru) 2009-05-27
WO2005054524A1 (fr) 2005-06-16
CN100465303C (zh) 2009-03-04
DE602004005362D1 (de) 2007-04-26
AU2004294469A1 (en) 2005-06-16
ATE356891T1 (de) 2007-04-15
PT1687455E (pt) 2007-05-31
AU2004294469B2 (en) 2009-07-16
ES2282918T3 (es) 2007-10-16
CA2544269A1 (en) 2005-06-16
DK1687455T3 (da) 2007-05-29
CA2544269C (en) 2012-03-13
US7645417B2 (en) 2010-01-12
BRPI0416333B1 (pt) 2017-05-16
RU2006124519A (ru) 2008-01-27
CN1886524A (zh) 2006-12-27
DE602004005362T2 (de) 2007-11-29
BRPI0416333A (pt) 2007-01-09
EP1538228A1 (de) 2005-06-08
JP2007512431A (ja) 2007-05-17
US20060243357A1 (en) 2006-11-02
KR20060128880A (ko) 2006-12-14

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