EP3555324B1 - Verfahren und abschnitt zur schnellen kühlung einer kontinuierlichen strasse zur behandlung von metallbändern - Google Patents
Verfahren und abschnitt zur schnellen kühlung einer kontinuierlichen strasse zur behandlung von metallbändern Download PDFInfo
- Publication number
- EP3555324B1 EP3555324B1 EP17829617.4A EP17829617A EP3555324B1 EP 3555324 B1 EP3555324 B1 EP 3555324B1 EP 17829617 A EP17829617 A EP 17829617A EP 3555324 B1 EP3555324 B1 EP 3555324B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- nozzles
- jets
- row
- cooling
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims description 109
- 239000002184 metal Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 239000012530 fluid Substances 0.000 claims description 50
- 239000007788 liquid Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 18
- 238000005507 spraying Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 47
- 239000007789 gas Substances 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000013019 agitation Methods 0.000 description 4
- 238000010583 slow cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
Definitions
- the invention relates to continuous lines for the production of metal strips. It relates more particularly to the rapid cooling sections of lines for annealing or galvanizing a steel strip, in which the strip is cooled at a rate of between 400° C./sec and 1200° C./s.
- the strip enters at a temperature of around 800° C. and exits at a temperature close to ambient temperature, or at an intermediate temperature.
- This cooling step is essential to obtain the desired metallurgical and mechanical properties.
- very rapid cooling rates are necessary, of the order of 1000° C./s. These speeds are in particular necessary at high temperature to form martensite, especially when the band is between 800 and 500°C approximately.
- Leidenfrost phenomenon Due to the so-called Leidenfrost phenomenon, it is in this temperature range that it is particularly difficult to achieve significant cooling slopes when cooling with water.
- the principle of the so-called Leidenfrost phenomenon is that a thin film of vapor is created on the surface of the strip, which constitutes a brake on the heat exchange between the cooling fluid and the strip.
- the difficulty therefore lies in being able to cool relatively thick strips very quickly while ensuring great flexibility and ease of operation of the line, in order to be able to produce on the same installation other types of steel that do not require rapid cooling rates.
- gas cooling and water cooling such as JP S61 153236 A and or JP S60 184635 A ).
- Cooling by spraying a water mist using bi-fluid nozzles allows a wide flexibility, but is limited in performance. In fact, the maximum performances peak at around 500°C/s for a strip 2 mm thick with a usual water pressure of around 5 bars. This cooling rate is also less when the strip is above the Leidenfrost temperature.
- the advantage of this technology is to have a very high flexibility. By adjusting the gas and water pressures, it is in fact possible to cover the entire cooling range, up to the maximum value.
- Cooling by water spray using mono-fluid nozzles has substantially the same characteristics.
- the cooling limit is also at 500° C./s in the usual pressure range, that is to say up to approximately 5 bars.
- This cooling offers less flexibility, especially for low cooling rates. Indeed, for proper operation, the water pressure at the nozzles cannot fall below a certain value, of the order of 0.5 bar. At this pressure, the cooling is already beyond 100°C/s for a strip 2 mm thick. Thus, this technology is not able to offer slow cooling with speeds comparable to cooling by gas.
- Cooling by quenching in a tank can make it possible, under certain agitation conditions, to achieve cooling performance of the order of 1000°C/s for strips 2 mm thick.
- the main flaw of this technology is its lack of flexibility. Indeed, the strip entering a water tank, it is very difficult to control the cooling rate and the final temperature of the strip. It is possible to adjust the agitation of the tank, the water temperature, or the length of the submerged strip, but this has a moderate effect on the cooling rate of the strip. It is also not possible to adjust the cooling transversely.
- this technology requires the use of a rather expensive submerged roller.
- the tank must then be purged, or bypassed, which requires a fairly cumbersome process.
- the invention makes it possible to cool a strip of 2 mm thickness in a wide range of cooling rates up to 1000°C/s in the temperature range 800 - 500°C, by making it possible to adjust transversely the cooling efficiency for good homogeneity across the bandwidth.
- a rapid cooling section of a continuous metal strip processing line arranged to cool the strip by spraying it with a liquid, or a mixture of a gas and a liquid, by means of nozzles arranged on either side of the strip with respect to its running plane, characterized in that, in the running direction of the strip, the cooling section comprises at at least one row of flat jet nozzles, followed by at least one row of conical jet nozzles, the rows of nozzles being arranged transversely to the running plane of the strip.
- the at least one row of flat jet nozzles can be mono-fluid.
- the at least one row of nozzles with conical jets can be mono-fluid.
- the rapid cooling section may further comprise at least one row of bi-fluid jet nozzles and which may follow, in the direction of scrolling of the strip, the at least one row of nozzles with conical jets.
- the row of nozzles can be arranged transversely to the running plane of the strip.
- Mono-fluid nozzles can be arranged to project a liquid onto the strip.
- Bi-fluid nozzles can be arranged to project onto the strip a mist composed of a mixture of gas and liquid.
- the cooling section according to the invention is arranged so that the strip circulates vertically from bottom to top.
- the cooling section may comprise, upstream of the row of flat jet nozzles in the direction of travel of the strip, another row of flat jet nozzles whose flat jets are inclined longitudinally with respect to a transverse plane and perpendicular to the strip at an angle B greater than 15°.
- the rapid cooling section may also comprise, upstream of the other flat jet nozzles, in the direction of travel of the strip, yet another row of flat jet nozzles whose flat jets are inclined longitudinally by a angle C with respect to the plane transverse and perpendicular to the strip, angle C being greater than angle B.
- the flat jet nozzles and more precisely those of the row and/or the other row and/or the still row, can be inclined transversely with respect to a transverse plane and perpendicular to the strip so that the flat jets are inclined at an angle A relative to the plane greater than 5° and less than 15°.
- the liquid, or the mixture of a gas and a liquid is non-oxidizing for the strip.
- the cooling section does not include, in the running direction of the strip, nozzles with conical jets arranged upstream of nozzles with flat jets.
- each of the conical jet nozzles of the cooling section according to the invention is arranged, in the running direction of the strip, downstream from each of the flat jet nozzles.
- the cooling section does not include, in the running direction of the strip, flat jet nozzles arranged downstream of conical jet nozzles.
- each of the flat jet nozzles of the cooling section according to the invention is arranged, in the running direction of the strip, upstream of each of the conical jet nozzles.
- a method for rapidly cooling a continuous line for processing metal strips arranged to cool the strip by spraying it with a liquid, or a mixture of a gas and a liquid, by means of nozzles arranged on either side of the strip with respect to its running plane, characterized in that, in the running direction of the strip, the cooling method comprises at least one projection originating from a row of flat jet nozzles, followed, in time, by at least one projection originating from a row of conical jet nozzles, the rows of nozzles being arranged transversely to the running plane of the web .
- a longitudinal part of the strip there is no projection coming from a row of nozzles with conical jets, prior to a projection coming from a row of nozzles with flat jets.
- the ultra-rapid cooling of a strip 2 mm thick at more than 1000°C/s between 800 and 500°C takes place in two successive stages: First, the strip passes in front of the first rows of mono-fluid nozzles with flat jets, supplied with water at high pressure of the order of 10 bars. These flat jet nozzles allow a strong and narrow impact on the web and therefore a rapid decrease in temperature. The impact of these nozzles on the strip being narrow, that is to say on a small strip surface, this leads to the use of a high water flow to cover the targeted strip surface and therefore large energy consumption at the water pumps.
- the cooling rate of the strip can be kept constant along the rapid cooling section according to the invention, with an identical cooling slope with the flat jet nozzles and the conical jet nozzles, or it can be different according to the nature of the steel and the mechanical properties concerned.
- cooling to ambient temperature or to a desired intermediate temperature can then be carried out by spraying a mist of water using bi-fluid nozzles projecting a mixture of gas and water onto the strip.
- this combination of cooling will allow total flexibility.
- the cooling zone comprising the mono-fluid nozzles with flat jets and the mono-fluid nozzles with conical jets being short (1 to 2 meters maximum), it is quite possible to turn off this section and carry out all cooling with bi-fluid nozzles projecting a mixture of water and gas.
- the nozzles according to the invention are point nozzles, that is to say they only cover a portion of the strip width. It is thus possible to have a fine transverse adjustment of the cooling of the band which is not possible when the cooling is carried out by means of nozzles covering the whole width of the strip, or a large strip width, for example half the strip width. For narrow swaths, the use of point nozzles can also stop those that are beyond the swath width, thus limiting the projected flow rate and the electrical consumption of the pump.
- the nozzles are advantageously staggered transversely so as to increase the uniformity of the cooling.
- the quincunx between the nozzles is offset on each side of the strip so as not to have two nozzles facing each other.
- a cross section of a strip 1 can be seen schematically shown being cooled by spraying a liquid by means of nozzles 2 arranged on either side of the strip, according to an embodiment of the 'invention.
- nozzles 2 arranged on either side of the strip, according to an embodiment of the 'invention.
- the transverse pitch between the nozzles and the distance between the nozzles and the strip are adjusted according to the opening angle of the jets 3 so as to cover the entire surface of the strip and to obtain uniform transverse cooling.
- we have a transverse overlap of the jets over the strip width we have a transverse overlap of the jets over the strip width. The extent of this overlap is limited to that necessary to ensure that the entire width of the strip is well covered by the jets while having homogeneous transverse cooling of the strip.
- FIG. 2 of the accompanying drawings one can see schematically represented, a longitudinal view on one side of a portion of a strip 1 running in a cooling section by spraying a liquid according to an embodiment of the invention.
- the tape runs from bottom to top.
- the strip On entering the cooling section, the strip first encounters two rows 4, 5 of nozzles 9, 10 with flat jets 14, 15 of high flow velocity, the function of which is to expel the liquid present on the strip due to the of a runoff. This results from the flow along the strip of part of the liquid projected onto the strip by the nozzles situated above these two rows 4, 5 of flat jets.
- These two rows of flat jets are inclined longitudinally in the running direction of the strip with respect to a plane transverse and perpendicular to the strip.
- the inclination of the first row 4 of flat jets 14 is greater than that of the second row 5 so as to promote the detachment of the liquid from the strip.
- the second row 5 of flat jets is inclined at an angle B of 15° and the first row is inclined at an angle C of 45°.
- the band then encounters, in the running direction F of the band, four successive rows 6 of flat jets 16 .
- These jets ensure rapid cooling of the belt. They are perpendicular to the surface of the strip and slightly inclined transversely with respect to the transverse plane and perpendicular to the strip by an angle A so as to limit the interaction between the jets while ensuring that the whole width of the strip is well covered by jets.
- This inclination remains limited so as not to increase the number of nozzles over the strip width and not to increase the transverse distance between two rows of nozzles necessary to avoid interaction between the jets of the two rows. This inclination is between 5° and 15° and is advantageously 8°.
- the number of successive rows 6 of nozzles 11 with flat jets 16 depends on the cooling profile of the desired strip, the characteristics of the strip, in particular its maximum thickness, the maximum running speed of the strip and the characteristics of the jets , in particular the flow rate and the velocity of the liquid.
- the strip then encounters four successive rows 7 of conical jets 17 . These jets are perpendicular to the strip surface. Again, the number of successive rows 7 of nozzles 12 with flat jets 17 depends on the cooling profile of the desired strip, the characteristics of the strip, the maximum running speed of the strip and the characteristics of the jets.
- the density of the jets on the surface of the strip is determined according to the cooling profile of the desired strip and the heat exchange performance of the jets.
- the nozzle supply pressure and the coolant temperature are parameters that can be adjusted to obtain the desired cooling slope. These parameters can be kept constant along the cooling section or they can be variable, depending on the desired thermal objective.
- the supply pressure of the nozzles 9, 10 can be higher so as to facilitate the evacuation of the runoff water.
- the distance between the belt and the nozzles is defined by taking into account several parameters, in particular the characteristics of the jets, the floating of the belt and the accesses necessary for maintenance. This distance is for example between 150 and 300 mm. It is obviously taken into account to define the pitch between the nozzles and the supply pressure of the nozzles.
- FIG. 3 there can be seen schematically represented a longitudinal and lateral view of the portion of a strip 1 running in the cooling section represented in figure 2 .
- This figure shows more clearly the longitudinal inclination of the first two rows of nozzles in the running direction F of the strip, the other nozzles being perpendicular to the strip.
- the bi-fluid nozzles are punctual and the jets obtained are conical. Since the cooling conditions are less critical for the slower cooling obtained by these bi-fluid nozzles, slotted nozzles covering the whole width of the strip, or part of it, can also be used.
- This system of water knives is not essential for descending bands. For these, however, it is advantageous to place a system of water knives after the last row of nozzles, at the outlet of the cooling section, in order to stop the cooling in a clear way by avoiding that which would result from the runoff of the water.
- the longitudinal distance from the first row of nozzles is taken at the level of the median axis of impact of the jet on the web.
- the distance between the nozzles and the strip is 250 mm for all the nozzles.
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)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Claims (7)
- Schnellabkühlabschnitt einer durchgehenden Metallstegverarbeitungslinie, der zum Abkühlen des Stegs (1) durch Sprühen einer Flüssigkeit (19) oder eines Gemischs (20) aus einem Gas und einer Flüssigkeit auf diesen mittels Düsen (2) eingerichtet ist, die auf beiden Seiten des Stegs relativ zu seiner Laufebene angeordnet sind, dadurch gekennzeichnet, dass, in der Laufrichtung (F) des Stegs, der Abkühlabschnitt mindestens eine Reihe (6) von Düsen (11) mit Flachstrahl (16) umfasst, gefolgt von mindestens einer Reihe (7) von Düsen (12) mit Kegelstrahlen (17), wobei die Düsenreihen (6, 7) quer zu der Laufebene des Stegs angeordnet sind.
- Schnellabkühlabschnitt nach Anspruch 1, wobei, in der Laufrichtung des Stegs, die mindestens eine Reihe (6) von Düsen (11) mit Flachstrahl (16) monofluidisch ist, die mindestens eine Reihe (7) von Düsen (7) mit Kegelstrahlen (17) monofluidisch ist, der Schnellabkühlabschnitt ferner umfassend mindestens eine Reihe (7) von Düsen (12) mit Strahlen (17), die bifluidisch ist, und, in der Laufrichtung (F) des Stegs, auf die Reihe (8) von Düsen (13) mit Kegelstrahlen (17) folgt, wobei die Reihe (8) von Düsen (13) quer zu der Laufebene des Stegs angeordnet ist, die Monofluiddüsen (11, 12) zum Sprühen einer Flüssigkeit auf den Steg eingerichtet sind und die Bifluiddüsen (13) zum Sprühen eines Nebels, der aus einer Mischung aus Gas und Flüssigkeit besteht, auf den Steg eingerichtet ist.
- Schnellabkühlabschnitt nach Anspruch 1 oder 2, der zum vertikalen Zirkulieren des Stegs (1) von unten nach oben eingerichtet ist, umfassend, stromaufwärts der Reihe (6) von Düsen (11) mit Flachstrahlen in der Laufrichtung des Stegs, eine Reihe (5) von Düsen (10) mit Flachstrahlen (15), deren Flachstrahlen (15) in Längsrichtung relativ zu einer Querebene und senkrecht zu dem Steg (1) um einen Winkel B geneigt sind, der größer als 15° ist.
- Schnellabkühlabschnitt nach dem vorstehenden Anspruch, ferner umfassend, stromaufwärts der Düsen (10) mit Flachstrahlen, in Laufrichtung (F) des Stegs, eine Reihe (4) von Düsen (9) mit Flachstrahlen (14), deren Flachstrahlen (14) in Längsrichtung relativ zu der Querebene und senkrecht zu dem Steg (1) um einen Winkel C geneigt sind, wobei der Winkel C größer als der Winkel B ist.
- Schnellabkühlabschnitt nach einem der vorstehenden Ansprüche, wobei die Düsen (9, 10, 11) mit Flachstrahl relativ zu einer Querebene und senkrecht zu dem Steg (1) so quer geneigt sind, dass die Flachstrahlen (14, 15, 16) relativ zu der Ebene um einen Winkel A geneigt sind, der größer als 5° und kleiner als 15° ist.
- Schnellabkühlabschnitt nach einem der vorstehenden Ansprüche, wobei die Flüssigkeit (19) oder das Gemisch (20) aus einem Gas und einer Flüssigkeit für den Steg (1) nicht oxidierend sind.
- Verfahren zum schnellen Abkühlen einer durchgehenden Metallstegverarbeitungslinie, die zum Abkühlen des Stegs durch Sprühen einer Flüssigkeit oder eines Gemischs aus einem Gas und einer Flüssigkeit auf diesen mittels Düsen eingerichtet ist, die auf beiden Seiten des Stegs relativ zu seiner Laufebene angeordnet sind, dadurch gekennzeichnet, dass, in der Laufrichtung des Stegs, das Abkühlverfahren mindestens ein Sprühen umfasst, das von einer Reihe von Düsen mit Flachstrahl stammt, zeitlich gefolgt von mindestens einem Sprühen, das von einer Reihe von Düsen mit Kegelstrahlen stammt, wobei die Düsenreihen quer zu der Laufebene des Stegs angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1662421A FR3060021B1 (fr) | 2016-12-14 | 2016-12-14 | Procede et section de refroidissement rapide d'une ligne continue de traitement de bandes metalliques |
PCT/EP2017/082073 WO2018108747A1 (fr) | 2016-12-14 | 2017-12-08 | Procede et section de refroidissement rapide d'une ligne continue de traitement de bandes metalliques |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3555324A1 EP3555324A1 (de) | 2019-10-23 |
EP3555324B1 true EP3555324B1 (de) | 2022-10-05 |
Family
ID=57909758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17829617.4A Active EP3555324B1 (de) | 2016-12-14 | 2017-12-08 | Verfahren und abschnitt zur schnellen kühlung einer kontinuierlichen strasse zur behandlung von metallbändern |
Country Status (11)
Country | Link |
---|---|
US (1) | US11230748B2 (de) |
EP (1) | EP3555324B1 (de) |
JP (1) | JP7021219B2 (de) |
KR (1) | KR102431023B1 (de) |
CN (1) | CN110168117A (de) |
ES (1) | ES2934248T3 (de) |
FI (1) | FI3555324T3 (de) |
FR (1) | FR3060021B1 (de) |
PL (1) | PL3555324T3 (de) |
PT (1) | PT3555324T (de) |
WO (1) | WO2018108747A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017127470A1 (de) * | 2017-11-21 | 2019-05-23 | Sms Group Gmbh | Kühlbalken und Kühlprozess mit variabler Abkühlrate für Stahlbleche |
SE543963C2 (en) * | 2020-02-28 | 2021-10-12 | Baldwin Jimek Ab | Spray applicator and spray unit comprising two groups of spray nozzles |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3300198A (en) * | 1963-12-27 | 1967-01-24 | Olin Mathieson | Apparatus for quenching metal |
US3997376A (en) * | 1974-06-19 | 1976-12-14 | Midland-Ross Corporation | Spray mist cooling method |
US4407487A (en) * | 1980-01-15 | 1983-10-04 | Heurtey Metallurgie | Device for cooling metal articles |
JPS60121229A (ja) * | 1983-12-01 | 1985-06-28 | Nippon Steel Corp | 高温鋼板の冷却方法 |
JPS60184635A (ja) * | 1984-02-29 | 1985-09-20 | Ishikawajima Harima Heavy Ind Co Ltd | 金属板冷却装置 |
JPS61153236A (ja) * | 1984-12-26 | 1986-07-11 | Kobe Steel Ltd | 厚鋼板のオンライン冷却設備 |
US5640872A (en) * | 1994-07-20 | 1997-06-24 | Alusuisse-Lonza Services Ltd. | Process and device for cooling heated metal plates and strips |
KR100780503B1 (ko) * | 2003-06-13 | 2007-11-29 | 제이에프이 스틸 가부시키가이샤 | 후강판의 제어냉각방법 및 그 냉각장치 |
AT414102B (de) * | 2004-08-04 | 2006-09-15 | Ebner Ind Ofenbau | Vorrichtung zum kühlen eines blechbandes |
DE502006004754D1 (de) * | 2005-08-01 | 2009-10-15 | Ebner Ind Ofenbau | Vorrichtung zum kühlen eines metallbandes |
EP1944098B1 (de) * | 2006-09-12 | 2010-05-19 | Nippon Steel Corporation | Verfahren zur einstellung der anordnung von sprühkühlungsdüsen |
CN102548680B (zh) * | 2009-06-30 | 2015-04-01 | 新日铁住金株式会社 | 热轧钢板的冷却装置、冷却方法、制造装置及制造方法 |
-
2016
- 2016-12-14 FR FR1662421A patent/FR3060021B1/fr not_active Expired - Fee Related
-
2017
- 2017-12-08 WO PCT/EP2017/082073 patent/WO2018108747A1/fr unknown
- 2017-12-08 US US16/468,847 patent/US11230748B2/en active Active
- 2017-12-08 CN CN201780077051.6A patent/CN110168117A/zh active Pending
- 2017-12-08 KR KR1020197018461A patent/KR102431023B1/ko active IP Right Grant
- 2017-12-08 PT PT178296174T patent/PT3555324T/pt unknown
- 2017-12-08 ES ES17829617T patent/ES2934248T3/es active Active
- 2017-12-08 JP JP2019531791A patent/JP7021219B2/ja active Active
- 2017-12-08 FI FIEP17829617.4T patent/FI3555324T3/fr active
- 2017-12-08 EP EP17829617.4A patent/EP3555324B1/de active Active
- 2017-12-08 PL PL17829617.4T patent/PL3555324T3/pl unknown
Also Published As
Publication number | Publication date |
---|---|
PL3555324T3 (pl) | 2023-01-23 |
FR3060021A1 (fr) | 2018-06-15 |
US11230748B2 (en) | 2022-01-25 |
WO2018108747A1 (fr) | 2018-06-21 |
EP3555324A1 (de) | 2019-10-23 |
ES2934248T3 (es) | 2023-02-20 |
KR20190094384A (ko) | 2019-08-13 |
KR102431023B1 (ko) | 2022-08-11 |
CN110168117A (zh) | 2019-08-23 |
US20200071788A1 (en) | 2020-03-05 |
JP7021219B2 (ja) | 2022-02-16 |
JP2020513480A (ja) | 2020-05-14 |
FR3060021B1 (fr) | 2018-11-16 |
FI3555324T3 (en) | 2023-01-13 |
PT3555324T (pt) | 2023-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2100673B1 (de) | Verfahren und Vorrichtung zum Blasen von Gas auf ein laufendes Band | |
EP3555324B1 (de) | Verfahren und abschnitt zur schnellen kühlung einer kontinuierlichen strasse zur behandlung von metallbändern | |
FR2940979A1 (fr) | Procede de refroidissement d'une bande metallique en defilement | |
FR2566688A1 (fr) | Procede et dispositif pour la coulee en continu de bain de fusion de metal, notamment de bain de fusion d'acier | |
EP1655383B1 (de) | Vorrichtung und Verfahren zur Begrenzung der beim Kühlen von Aluminium- oder Stahlblechen unter Gasströmung auftretenden Bandvibrationen | |
EP0761829B1 (de) | Vorrichtung zum Kühlen von Walzgut | |
WO2003104501A2 (fr) | Procede et dispositif de patentage de fils en acier | |
FR2833871A1 (fr) | Procede et installation de fabrication de bandes metalliques a partir de bandes coulees directement a partir de metal liquide | |
FR2552448A1 (fr) | Appareil de refroidissement continu d'une plaque metallique chauffee | |
WO2005054524A1 (fr) | Procede et dispositif de refroidissement d'une bande d'acier | |
FR2460333A1 (fr) | Procede et appareil pour refroidir des bandes d'acier au cours d'un traitement de recuit en continu | |
FR2479795A1 (fr) | Procede d'amincissement de verre produit par flottage | |
BE1014869A3 (fr) | Dispositif de refroidissement et/ou de rincage de fils et/ou | |
EP0686209B1 (de) | Verfahren und vorrichtung zur kontinuierlichen behandlung eines verzinkten stahlbandes | |
EP1029933B1 (de) | Vorrichtung zum Wärmetauschen mit einem flachen Produkt | |
WO2024133293A1 (fr) | Methode et dispositif de refroidissement rapide d'une bande metallique, ligne continue de production de bandes métalliques | |
EP4010503B1 (de) | Beweglicher tank für ein wärmeaustauschflüssigkeitsbad und anlage mit einem solchen tank | |
EP0031772A1 (de) | Verfahren und Vorrichtung zum Herstellen von Float-Glas | |
EP4370719A1 (de) | Flüssigkeitskühlung eines in einer kontinuierlichen leitung laufenden bandes | |
BE898291A (fr) | Procédé et dispositif pour le refroidissement accéléré d'une bande métallique mince. | |
FR2639361A1 (fr) | Procede et dispositif pour la fabrication d'un materiau en couches pour elements de glissement | |
EP2173918B1 (de) | Ausrüstung zur beschichtung eines blechstreifens | |
JP5900080B2 (ja) | 鋼帯の製造装置および鋼帯の製造方法 | |
EP0084335A2 (de) | Vorrichtung zum schnellen Abschrecken eines flüssigen Metalles oder einer Metallegierung auf einem Band | |
BE419364A (de) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190613 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20200617 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20220512 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1522789 Country of ref document: AT Kind code of ref document: T Effective date: 20221015 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602017062447 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: RO Ref legal event code: EPE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Ref document number: 3555324 Country of ref document: PT Date of ref document: 20230102 Kind code of ref document: T Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20221227 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: SK Ref legal event code: T3 Ref document number: E 40907 Country of ref document: SK |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2934248 Country of ref document: ES Kind code of ref document: T3 Effective date: 20230220 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230105 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230205 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230106 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230120 Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602017062447 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
26N | No opposition filed |
Effective date: 20230706 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221231 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221208 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221231 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: UEP Ref document number: 1522789 Country of ref document: AT Kind code of ref document: T Effective date: 20221005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20231121 Year of fee payment: 7 Ref country code: LU Payment date: 20231121 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SK Payment date: 20231128 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20231121 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20231128 Year of fee payment: 7 Ref country code: SE Payment date: 20231121 Year of fee payment: 7 Ref country code: RO Payment date: 20231206 Year of fee payment: 7 Ref country code: PT Payment date: 20231122 Year of fee payment: 7 Ref country code: FR Payment date: 20231122 Year of fee payment: 7 Ref country code: FI Payment date: 20231121 Year of fee payment: 7 Ref country code: DE Payment date: 20231121 Year of fee payment: 7 Ref country code: CZ Payment date: 20231124 Year of fee payment: 7 Ref country code: AT Payment date: 20231123 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20231127 Year of fee payment: 7 Ref country code: BE Payment date: 20231121 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20171208 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20240102 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221005 |