WO2018108747A1 - Procede et section de refroidissement rapide d'une ligne continue de traitement de bandes metalliques - Google Patents
Procede et section de refroidissement rapide d'une ligne continue de traitement de bandes metalliques Download PDFInfo
- Publication number
- WO2018108747A1 WO2018108747A1 PCT/EP2017/082073 EP2017082073W WO2018108747A1 WO 2018108747 A1 WO2018108747 A1 WO 2018108747A1 EP 2017082073 W EP2017082073 W EP 2017082073W WO 2018108747 A1 WO2018108747 A1 WO 2018108747A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzles
- strip
- jets
- row
- cooling
- Prior art date
Links
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 producing metal strips. It relates more particularly to the rapid cooling sections of the annealing or galvanizing lines of a steel strip, wherein the strip is cooled at a speed between 400 ° C / sec and 1200 ° C / s.
- the strip enters a temperature around 800 ° C and comes out at a temperature close to room temperature, or at an intermediate temperature.
- This cooling step is essential to obtain the desired metallurgical and mechanical properties.
- very fast cooling rates are necessary, of the order of 1000 ° C./s. These speeds are particularly necessary at high temperature to form martensite, especially when the band is between 800 and 500 ° C. Due to the so-called Leidenfrost phenomenon, it is in this temperature range that it is particularly difficult to reach significant cooling slopes during 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 strips concerned are often thick and can be up to 2 mm thick or more.
- the difficulty lies in the fact of being able to cool very fast relatively fast strips 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 fast cooling speeds.
- gas cooling and water cooling There are two main types of technologies for cooling steel strips in a continuous line: gas cooling and water cooling.
- Spray cooling of a water mist using bi-fluid nozzles provides a great deal of flexibility but is limited in performance. Indeed, the maximum performance peaks at about 500 ° C / s for a strip of thickness 2 mm with a usual water pressure of the order of 5 bars. This cooling rate is also lower when the band is above Leidenfrost temperature.
- the advantage of this technology is to have a very high flexibility. By adjusting the gas and water pressures, it is indeed possible to cover the entire cooling range up to the maximum value.
- Water spray cooling using single-fluid nozzles has substantially the same characteristics.
- the cooling limit is also 500 ° C / s in the usual pressure range, that is to say up to about 5 bar.
- the major difference comes from the fact that this cooling offers less flexibility, especially for low cooling speeds. Indeed, for proper operation, the water pressure at the nozzles can not fall below a certain value, of the order of 0.5 bar. At this pressure, the cooling is already above 100 ° C / s for a strip of thickness 2 mm. Thus, this technology is not able to offer slow cooling with speeds comparable to cooling by gas.
- Cooling by quenching in a tank can, under certain stirring conditions, achieve cooling performance of the order of 1000 ° C / s for strips of 2 mm thick.
- the main flaw of this technology is its lack of flexibility. Indeed, the band entering a water tank, it is very difficult to control the cooling rate and the final temperature of the band. It is possible to adjust the tank agitation, the water temperature, or the length of the submerged band, but this has a moderate effect on the cooling rate of the band. It is also not possible to adjust the cooling transversely. In addition, this technology requires the use of a rather expensive submerged roll. Finally, for bands requiring slow cooling, it is then necessary to purge the tank, or the bypass, which requires a rather heavy process.
- the invention enables a 2 mm thick strip to be cooled in a wide range of cooling rates up to 1000 ° C / s in the temperature range 800-500 ° C, allowing the transverse adjustment of the strip. cooling efficiency for good homogeneity over the bandwidth.
- a rapid cooling section of a continuous line of treatment of metal strips arranged to cool the strip by projection thereon of 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 least one minus 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 strip traveling plane.
- the at least one row of flat jet nozzles may be single-fluid.
- the at least one row of conical jet nozzles may be single-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 the strip, the at least one row of conical jets.
- the row of nozzles may be arranged transversely to the strip travel plane.
- the single fluid nozzles can be arranged to project a liquid on the strip.
- the bi-fluid nozzles can be arranged to project on the band a mist composed of a mixture of gas and liquid.
- the cooling section according to the invention is arranged so that the strip travels vertically from bottom to top.
- the cooling section can comprise, upstream of the row of flat jet nozzles in the direction of travel of the strip, another row of jet nozzles whose flat jets are inclined longitudinally with respect to a transverse plane and perpendicular to the strip of an angle B greater than 15 °.
- the rapid cooling section may furthermore comprise, upstream of the other flat jet nozzles, in the running direction of the strip, a further row of flat jet nozzles whose flat jets are longitudinally inclined by angle C with respect to the transverse plane and perpendicular to the strip, the angle C being greater than the 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 with respect to the upper plane at 5 ° and less than 15 °.
- the liquid, or the mixture of a gas and a liquid are non-oxidizing for the strip.
- the cooling section does not comprise, in the running direction of the strip, conical jet nozzles arranged upstream of jet nozzles.
- each of the conical jet nozzles of the cooling section according to the invention is arranged, in the direction of travel of the strip, downstream of each of the flat jet nozzles.
- the cooling section does not have, in the run direction of the web, jet nozzles arranged downstream of nozzles conical jets.
- each of the flat jet nozzles of the cooling section according to the invention is arranged, in the direction of travel of the strip, in mount of each of the conical jet nozzles.
- a method of rapidly cooling a continuous line of metal strip processing arranged to cool the strip by projection thereon of 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 from a row of flat jet nozzles, followed, temporally, by at least one projection from a row of conical jet nozzles, the rows of nozzles being arranged transverse to the tape plane of travel .
- the ultra-fast cooling of a strip 2 mm thick to more than 1000 ° C / s between 800 and 500 ° C is done in two successive stages: First the band passes in front of first rows of single-fluid jets with flat jets, supplied with water at high pressure of the order of 10 bars. These jet jets allow a strong and narrow impact on the band and therefore a rapid decrease in temperature. The impact of these nozzles on the band being narrow, that is to say on a small band surface, this involves the use of a high flow of water to cover the target band surface and therefore large energy consumption at the water pumps.
- the Leindenfrost temperature Once the Leindenfrost temperature has been exceeded, it is easier to cool the band. That's why cooling is continues with mono-fluid conical jets at substantially the same pressure.
- the use of conical jet nozzles is preferred from this intermediate temperature to ensure a better distribution and water coverage on the band.
- the conical jet nozzles are more efficient in terms of performance / flow injected water, especially when the band is at lower temperature, they reduce the flow of water and therefore the energy consumption at the pumps to water.
- the cooling rate of the web 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 cone jet nozzles, or it can be different according to the nature of the steel and the mechanical properties
- the cooling to room temperature or to a desired intermediate temperature can then be accomplished by spraying a water mist with the aid of bi-fluid nozzles projecting a mixture of gas and water on the strip.
- this combination of cooling will allow total flexibility.
- the single-fluid nozzles with flat jets and monofluid nozzles with conical jets it will then be possible to extinguish the single-fluid nozzles with flat jets and monofluid nozzles with conical jets and to use only the bi-fluid nozzles projecting a mixture of gas and water.
- the cooling zone comprising the single-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 extinguish this section and to realize all cooling with bi-fluid nozzles throwing a mixture of water and gas.
- the nozzles according to the invention are point nozzles, that is to say that they cover only a portion of the bandwidth. It is thus possible to have a transverse fine adjustment of the cooling of the band which is not possible when the cooling is carried out by means of nozzles covering the entire width of the band, or a large bandwidth, for example half the bandwidth. For narrow bands, the use of spot nozzles also helps to stop those beyond the bandwidth, thus limiting the projected flow and power consumption of the pump.
- the nozzles are advantageously placed staggered transversely so as to increase the homogeneity of the cooling.
- the quincunx between the nozzles is shifted on each side of the strip so as not to have two nozzles facing each other.
- FIG. 1 is a schematic cross-sectional view of the strip in a cooling section according to an exemplary embodiment of the invention
- Fig. 2 is a schematic view in longitudinal section of the strip in the cooling section according to the embodiment of the invention of FIG. 1, and,
- FIG. 3 is a schematic longitudinal view of the cooling section according to the embodiment of the invention of FIGS. 1 and 2.
- FIG. 1 of the accompanying drawings there can be seen schematically a cross section of a strip 1 during cooling by spraying a liquid by means of nozzles 2 disposed on either side of the band, according to an exemplary 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 homogeneous transverse cooling.
- we have a transverse overlap of the jets on the bandwidth The importance of this overlap is limited to that necessary to ensure that the entire width of the band is well covered by the jets while having a homogeneous transverse cooling of the band.
- FIG. 2 of the appended drawings a longitudinal view on a face of a portion of a strip 1 running in a cooling section by spraying a liquid according to an example can be seen schematically.
- the band 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 with a high flow velocity whose function is to expel the liquid present on the strip because of runoff. This results from the flow along the strip of a portion of the liquid sprayed onto the strip by the nozzles located 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 relative to a transverse plane 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 of flat jets is inclined at an angle B of 15 ° and the first row is inclined at an angle C of 45 °.
- the strip then meets, in the tape direction F, four successive rows 6 of 16 flat jets.
- These jets ensure rapid cooling of the band. They are perpendicular to the surface of the strip and slightly inclined transversely to the transverse plane and perpendicular to the strip of an angle A so as to limit the interaction between the jets while ensuring that the entire width of the strip is well covered by the jets.
- This inclination is limited so as not to increase the number of nozzles over the bandwidth and not to increase the transverse distance between two rows of nozzles necessary to avoid the interaction between the jets of the two rows. This inclination is between 5 ° and 15 ° and is preferably 8 °.
- the number of successive rows 6 of nozzles 1 1 with 16 flat jets is a function of the cooling profile of the desired band, the characteristics of the band, in particular its maximum thickness, the maximum speed of the band and the characteristics of the bands. jets, in particular the flow rate and the speed of the liquid.
- the strip then meets four successive rows 7 of 17 conical jets. These jets are perpendicular to the surface of the strip. Again, the number of successive rows 7 of flat jet nozzles 12 is a function of the desired band cooling profile, band characteristics, maximum bandwidth and jet characteristics. Similarly, the density of the jets on the surface of the strip, in particular the distance between the rows 7 of nozzles in the longitudinal direction of the strip, is determined according to the cooling profile of the desired strip and the heat exchange performance of the stripes. jets.
- Nozzle supply pressure and coolant temperature are parameters that can be adjusted to achieve the desired cooling gradient. These parameters can be kept constant along the cooling section or they can be variable, depending on the target thermal objective.
- the supply pressure of the nozzles 9, 10 may be higher so as to facilitate the evacuation of the runoff water.
- the distance between the band and the nozzles is defined by taking into account several parameters, in particular the characteristics of the jets, the floating of the band and the access necessary for the 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 of the appended drawings a longitudinal and lateral view of the portion of a strip 1 running in the cooling section shown in FIG. 2 can be diagrammatically shown. This figure shows more clearly the longitudinal inclination of the first two rows of nozzles in the tape direction F, the other nozzles being perpendicular to the strip.
- cooling to room temperature can then be carried out by spraying a water mist with the aid of rows 8 of bi-fluid nozzles 13 with conical jets 18 projecting a mixture 20 of gas, for example nitrogen, and water on the strip. So, this combination of cooling allows total flexibility.
- the single-fluid nozzles with flat jets and the single-fluid nozzles with conical jets it will then be possible to stop the single-fluid nozzles with flat jets and the single-fluid nozzles with conical jets and to use only the two-fluid nozzles projecting a mixture of gas and liquid .
- the cooling zone comprising the single-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 stop this section and to realize all cooling with the bi-fluid nozzles projecting a mixture of liquid and gas.
- the bi-fluid nozzles are point-shaped and the jets obtained are conical. Since the cooling conditions are less critical for the slower cooling achieved by these bi-fluid nozzles, slit nozzles spanning the full width of the web, or a portion thereof, may also be used.
- This system of water knives is not essential for descending bands. For these, however, it is advantageous to place a water knife system after the last row of nozzles, at the outlet of the cooling section, in order to stop the cooling in a clean way avoiding that which would result from the runoff of water. the water.
- a water knife system for cooling a band flowing from bottom to top. The cooling system is as follows:
- the longitudinal distance from the first row of nozzles is taken at the median axis of impact of the jet on the strip.
- the distance between the nozzles and the band is 250 mm for all nozzles.
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- 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)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17829617.4T PL3555324T3 (pl) | 2016-12-14 | 2017-12-08 | Sposób i sekcja do szybkiego schładzania linii ciągłej do obróbki taśm metalowych |
EP17829617.4A EP3555324B1 (fr) | 2016-12-14 | 2017-12-08 | Procede et section de refroidissement rapide d'une ligne continue de traitement de bandes metalliques |
FIEP17829617.4T FI3555324T3 (en) | 2016-12-14 | 2017-12-08 | Method and section for quick cooling of a continuous line for treating metal belts |
US16/468,847 US11230748B2 (en) | 2016-12-14 | 2017-12-08 | Method and section for quick cooling of a continuous line for treating metal belts |
KR1020197018461A KR102431023B1 (ko) | 2016-12-14 | 2017-12-08 | 금속 시트를 처리하기 위한 연속 라인의 급속 냉각을 위한 방법 및 섹션 |
JP2019531791A JP7021219B2 (ja) | 2016-12-14 | 2017-12-08 | 金属ストリップの連続処理ラインの急速冷却方法及び急速冷却部 |
CN201780077051.6A CN110168117A (zh) | 2016-12-14 | 2017-12-08 | 用于金属带材处理的连续生产线的快速冷却方法和部分 |
ES17829617T ES2934248T3 (es) | 2016-12-14 | 2017-12-08 | Procedimiento y sección para el enfriamiento rápido de una línea continua para el tratamiento de cintas metálicas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1662421 | 2016-12-14 | ||
FR1662421A FR3060021B1 (fr) | 2016-12-14 | 2016-12-14 | Procede et section de refroidissement rapide d'une ligne continue de traitement de bandes metalliques |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018108747A1 true WO2018108747A1 (fr) | 2018-06-21 |
Family
ID=57909758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
Country Status (11)
Country | Link |
---|---|
US (1) | US11230748B2 (fr) |
EP (1) | EP3555324B1 (fr) |
JP (1) | JP7021219B2 (fr) |
KR (1) | KR102431023B1 (fr) |
CN (1) | CN110168117A (fr) |
ES (1) | ES2934248T3 (fr) |
FI (1) | FI3555324T3 (fr) |
FR (1) | FR3060021B1 (fr) |
PL (1) | PL3555324T3 (fr) |
PT (1) | PT3555324T (fr) |
WO (1) | WO2018108747A1 (fr) |
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 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3300198A (en) * | 1963-12-27 | 1967-01-24 | Olin Mathieson | Apparatus for quenching metal |
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 |
EP1634657A1 (fr) * | 2003-06-13 | 2006-03-15 | JFE Steel Corporation | Procede et dispositif de refroidissement controle pour plaque en acier epaisse, et plaque en acier epaisse ainsi obtenue |
US20090045557A1 (en) * | 2006-09-12 | 2009-02-19 | Ryuji Yamamoto | Method of Arranging and Setting Spray Cooling Nozzles and Hot Steel Plate Cooling Apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5640872A (en) * | 1994-07-20 | 1997-06-24 | Alusuisse-Lonza Services Ltd. | Process and device for cooling heated metal plates and strips |
AT414102B (de) * | 2004-08-04 | 2006-09-15 | Ebner Ind Ofenbau | Vorrichtung zum kühlen eines blechbandes |
WO2007014406A1 (fr) * | 2005-08-01 | 2007-02-08 | Ebner Industrieofenbau Gesellschaft M.B.H. | Dispositif pour refroidir une bande de metal |
WO2011001934A1 (fr) * | 2009-06-30 | 2011-01-06 | 住友金属工業株式会社 | Dispositif de refroidissement, procédé de refroidissement, dispositif de fabrication et procédé de fabrication de tôles d'acier laminées à chaud |
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2016
- 2016-12-14 FR FR1662421A patent/FR3060021B1/fr active Active
-
2017
- 2017-12-08 JP JP2019531791A patent/JP7021219B2/ja active Active
- 2017-12-08 ES ES17829617T patent/ES2934248T3/es active Active
- 2017-12-08 EP EP17829617.4A patent/EP3555324B1/fr active Active
- 2017-12-08 FI FIEP17829617.4T patent/FI3555324T3/fr active
- 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 WO PCT/EP2017/082073 patent/WO2018108747A1/fr unknown
- 2017-12-08 PT PT178296174T patent/PT3555324T/pt unknown
- 2017-12-08 KR KR1020197018461A patent/KR102431023B1/ko active IP Right Grant
- 2017-12-08 PL PL17829617.4T patent/PL3555324T3/pl unknown
Patent Citations (6)
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US3300198A (en) * | 1963-12-27 | 1967-01-24 | Olin Mathieson | Apparatus for quenching metal |
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 |
EP1634657A1 (fr) * | 2003-06-13 | 2006-03-15 | JFE Steel Corporation | Procede et dispositif de refroidissement controle pour plaque en acier epaisse, et plaque en acier epaisse ainsi obtenue |
US20090045557A1 (en) * | 2006-09-12 | 2009-02-19 | Ryuji Yamamoto | Method of Arranging and Setting Spray Cooling Nozzles and Hot Steel Plate Cooling Apparatus |
Also Published As
Publication number | Publication date |
---|---|
US11230748B2 (en) | 2022-01-25 |
ES2934248T3 (es) | 2023-02-20 |
JP2020513480A (ja) | 2020-05-14 |
FR3060021A1 (fr) | 2018-06-15 |
KR20190094384A (ko) | 2019-08-13 |
PT3555324T (pt) | 2023-01-02 |
CN110168117A (zh) | 2019-08-23 |
FI3555324T3 (en) | 2023-01-13 |
US20200071788A1 (en) | 2020-03-05 |
KR102431023B1 (ko) | 2022-08-11 |
PL3555324T3 (pl) | 2023-01-23 |
EP3555324B1 (fr) | 2022-10-05 |
JP7021219B2 (ja) | 2022-02-16 |
EP3555324A1 (fr) | 2019-10-23 |
FR3060021B1 (fr) | 2018-11-16 |
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