EP3350352B1 - Durchlaufkühlvorrichtung und verfahren zum abkühlen eines metallbandes - Google Patents

Durchlaufkühlvorrichtung und verfahren zum abkühlen eines metallbandes Download PDF

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Publication number
EP3350352B1
EP3350352B1 EP17700322.5A EP17700322A EP3350352B1 EP 3350352 B1 EP3350352 B1 EP 3350352B1 EP 17700322 A EP17700322 A EP 17700322A EP 3350352 B1 EP3350352 B1 EP 3350352B1
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EP
European Patent Office
Prior art keywords
strip
cooling
jets
metal strip
water
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.)
Revoked
Application number
EP17700322.5A
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German (de)
English (en)
French (fr)
Other versions
EP3350352A1 (de
Inventor
Dirk Schäfer
Andreas Noé
Thomas Von Der Ohe
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Redex SA
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Redex SA
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Publication date
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Application filed by Redex SA filed Critical Redex SA
Publication of EP3350352A1 publication Critical patent/EP3350352A1/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
    • 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
    • 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
    • C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling

Definitions

  • the invention relates to a continuous cooling device for cooling a metal strip, in particular a metal strip made of light metal, e.g. B. an aluminum strip, with at least one (first) strip floating cooler, which has a plurality of upper (air) nozzles distributed along the direction of travel of the strip and a plurality of lower (air) nozzles distributed along the direction of travel, the metal strip floating (and consequently contactless) between the upper nozzles and the lower nozzles can be transported and both the upper side and the lower side of the belt can be acted upon with cooling air, and with several water cooling units with which the metal belt can be acted upon with cooling water.
  • the direction of travel of the strip corresponds to the longitudinal direction of the furnace. It is (essentially) oriented horizontally.
  • metal band means preferably a metal band made of a light metal or a light metal alloy, particularly preferably made of aluminum or an aluminum alloy.
  • the metal strip is usually subjected to a heat treatment for metallurgical purposes in the course of production. So it is It is common, for example, to subject a metal strip made of an aluminum alloy to a heat treatment after cold rolling in order to optimize the strip properties or material properties, in particular strength and deformability / plasticity. So it is with aluminum alloys z. B. customary to achieve strength increases through precipitation hardening by solution heat treatment.
  • the metal strip e.g. aluminum strip
  • the temperatures in the course of solution annealing of aluminum alloys are usually in a temperature range between 400 ° C and 600 ° C, depending on the type of alloy.
  • the alloy elements are evenly dissolved in the aluminum matrix, so that a homogeneous mixed crystal is created.
  • the invention therefore particularly relates to prefers the treatment of strips made from a precipitation-hardenable aluminum alloy, in particular for automotive applications, that is to say for the production of automotive sheet metal.
  • cooling is required, which is also referred to as "quenching", since the even distribution of the alloying elements is supposed to be “frozen”, as it were.
  • a device for cooling a metal strip which has a slot nozzle arranged inclined to the surface, which directs a jet of a gas / liquid mixture onto the surface.
  • the EP 0 343 103 B1 also describes a method for cooling metal strips by spraying a gas / liquid mixture in the form of a mist onto the surface of the strip.
  • JP 61253329 an arrangement is described in which an annealing furnace is followed by a cooling device which has two support air nozzles and a water cooling system arranged between them.
  • the EP 0 192 169 describes a device for the non-contact, wave-shaped guiding of metal strips, with nozzle boxes being arranged above and below the metal strip. By applying air, the metal strip can be heated or cooled.
  • the invention is based on the technical problem of creating a continuous cooling device with which, with a simple structure, metal strips and, in particular, strips made of aluminum alloys, can be optimally cooled and thus excellent strip properties can be achieved.
  • the invention teaches a continuous cooling device with the features of claim 1. It is provided that the water cooling units are integrated in the belt float cooler.
  • the invention is based on the knowledge that, although it is fundamentally expedient to use the metal strip, e.g. B. aluminum strip to cool as quickly as possible in order to optimally "freeze" the properties achieved by the heat treatment. At the same time, however, too rapid cooling must be avoided to reduce warpage caused by contraction of the belt. Even if such distortions can be eliminated in a subsequent straightening process, the invention has recognized that to achieve optimal strip properties, distortions must be kept as low as possible in order to minimize the influence of the strip in the course of the subsequent straightening process.
  • a cooling is achieved within the scope of the invention that does not take place as quickly as possible, but only as quickly as necessary and at the same time as slowly as possible in order to record the results of the heat treatment and in particular to reduce the formation of precipitation defects.
  • a strongly degressive cooling curve in the time-temperature diagram
  • a progressive or a linear cooling curve is implemented.
  • this is achieved in that combined water-air cooling is implemented in such a way that water cooling units are integrated into a floating belt cooler.
  • Such a device can be implemented quite easily in terms of device technology, because first of all the basic structure of a belt float cooler can be used.
  • the water cooling units which can also be constructed very simply, are integrated into such a basically known floating belt cooler.
  • a "soft quench” is implemented on this, with very good adjustability and thus good adaptation options to the respective process and in particular also to the treatment of different ligaments being possible.
  • a floating belt furnace or cooler of known type can be used.
  • Such a device has a plurality of upper nozzles which are arranged at a distance along the direction of travel of the belt, so that intermediate areas are formed between the upper nozzles will.
  • a plurality of lower nozzles are provided, which are arranged at a distance from one another in the direction of belt travel, so that a plurality of intermediate regions are also formed between the lower nozzles.
  • a large number of water cooling units can now be integrated into the belt suspension cooler by arranging the water cooling units in the lower intermediate areas and / or the upper intermediate areas.
  • a large number of water cooling units are integrated into the strip float cooler, with at least one water cooling unit each being arranged in several intermediate areas between each lower nozzle (or alternatively also upper nozzle) arranged directly one behind the other and consequently adjacent in the strip running direction.
  • a very compact design is consequently implemented, because the water cooling units can be integrated into the floating belt cooler in such a way that the intermediate areas between the nozzles that are already present are optimally used.
  • too rapid cooling of the metal strip can be avoided in this way, since the cooling with the aid of the cooling water takes place, as it were, step-by-step and is superimposed with a cooling via the cooling air in each case.
  • the air is applied from above as well as from below, as is generally the case with strip flotation coolers or strip flotation furnaces.
  • the water cooling takes place only “from below”, that is to say the water cooling units are only arranged to act on the underside of the belt in the area of the lower nozzles and consequently in the lower intermediate areas below the belt.
  • This configuration has the advantage that the water can run off properly and the formation of pools of water on the upper side of the belt can be avoided.
  • the upper nozzles are arranged offset from the lower nozzles along the strip running direction, so that the metal strip is floated sinusoidally or in a wave-like manner.
  • the water cooling units are then in a side view of the oven, e.g. B. arranged in alignment with the opposite air nozzles. If the water cooling units are consequently arranged below the belt between the lower air nozzles, the water cooling units are arranged in a side view in alignment with the opposite (upper) nozzles.
  • Such a configuration with a sinusoidal tape guide has the advantage that the tape is optimally guided and supported.
  • a staggered arrangement of the upper and lower air nozzles and thus an aligned arrangement of the upper nozzles opposite the water cooling units also has the advantage that the application of air prevents the water supplied from below from reaching the surface of the belt via the belt edges.
  • the water cooling units themselves can be constructed and set up in a basically known manner. They can each have one or more water nozzles or rows of water nozzles arranged one behind the other in the direction of belt travel and extending transversely to the direction of belt travel along the belt width.
  • the focus of the invention is on the combination of water nozzles and air nozzles within a floating belt cooler, it is optionally also within the scope of the invention to arrange at least one water cooling device in front of the floating belt cooler.
  • the metal strip after it has been subjected to a heat treatment and z. B. exits from a floating belt furnace, first passes through a conventional water cooling unit and thus a conventional water quench and only then enters the floating belt cooler according to the invention with integrated water cooling units. In this way, the system can be operated very variably overall. It is possible, in the conventional way, to cool the metal strip very quickly after the heat treatment with the aid of water cooling. Alternatively, the optional However, the water cooling provided can also be switched off, so that the "soft quench" according to the invention with combined water-air cooling is then used.
  • the invention also relates to a method for cooling a metal strip, in particular an aluminum strip, in a continuous cooling device of the type described.
  • the metal strip runs through the strip float cooler under tension along a (essentially horizontal) strip running direction which corresponds to the longitudinal direction of the furnace. A continuous treatment in the course of a continuous cycle is guaranteed.
  • the metal strip is transported in a floating manner and consequently without contact between the upper nozzle and the lower nozzle, and cooling air is applied to both the upper side and the lower side of the belt.
  • cooling water is applied to the metal strip.
  • the metal strip within the strip float cooler is acted upon with cooling water by a plurality of water cooling units integrated in the strip float cooler.
  • the metal strip within the strip float cooler is acted upon by water cooling units, which are arranged in several intermediate areas between two upper nozzles or lower nozzles arranged directly one behind the other in the strip running direction (and consequently adjacent).
  • optimal cooling speeds can be set, with which cooling takes place relatively quickly in order to "freeze” the properties of the strip achieved by a heat treatment.
  • too rapid cooling is avoided in order to keep distortions that can result in the course of the contraction of the strip during cooling within limits.
  • the invention proposes that the metal strip between two adjacent lower nozzles or upper nozzles with the water cooling unit arranged in the respective intermediate area by a temperature difference of a maximum of 100 K, e.g. B. a maximum of 75 K, preferably a maximum of 50 K is cooled.
  • the invention also relates to a system for the heat treatment of a metal strip, in particular an aluminum strip, with at least one treatment device, e.g. B. a treatment furnace, in particular hovering belt furnace and with at least one continuous cooling device of the type described.
  • the continuous cooling device according to the invention is z. B. downstream of the treatment furnace intended for heat treatment in the working direction and consequently the direction of travel of the belt.
  • the continuous cooling device according to the invention is consequently also placed under protection in combination with a hovering belt furnace and consequently within a system for heat treatment.
  • the described flow cooling device which works on the one hand with air cooling and on the other hand with water cooling, is followed by a further floating belt cooler, which is, however, preferably designed without water cooling and consequently in a conventional manner.
  • the treatment device to which the continuous cooling device is connected can - as described - be a treatment furnace for heating the strip.
  • the invention also includes the combination of the continuous cooling device with other treatment devices.
  • the continuous cooling device according to the invention, for. B. also be arranged downstream of a (hot) rolling mill or a (hot) rolling stand or another treatment station through which the metal strip runs in a heated state or in which the metal strip is heated.
  • the invention also relates to a method for heat treatment of a metal strip in a system of the type described.
  • This method is characterized in that the metal strip is first heated in the treatment furnace and then cooled in the continuous cooling device and, if necessary, a further strip float cooler.
  • the metal strip is not a treatment furnace, but a different treatment device, e.g. B. a rolling mill / roll stand or the like, passes through.
  • Fig. 4 a modified embodiment of the object according to Fig. 2 and Fig. 3 .
  • the figures show a system for heat treatment of a metal strip 1, which is preferably designed as an aluminum strip.
  • the system has a treatment furnace 2, which is designed as a strip flotation furnace and in which the metal strip is subjected to a heat treatment. It can be, for. B. be a solution heat treatment or the like.
  • the system has a continuous cooling device 3, which is arranged downstream of the floating strip furnace 2 in the strip running direction B.
  • the inventive Continuous cooling device 3 has a strip floating cooler 4, which has a plurality of upper nozzles 5 distributed along the direction of belt travel and a plurality of lower nozzles 6 distributed along the direction of belt travel, the metal strip 1 being transported in a floating manner and consequently without contact between the upper nozzles 5 and the lower nozzles 6. Cooling air is applied to both the upper side and the lower side of the belt.
  • the continuous cooling device 3 has a multiplicity of water cooling units 7, with which the metal strip 1 is acted upon with cooling water.
  • these water cooling units 7 are integrated into the belt float cooler 4.
  • upper intermediate areas 5a and lower intermediate areas 6a are formed within the strip floating cooler 4 between the individual upper nozzles 5 and the individual lower nozzles 6, it being possible to see that these intermediate areas 5a, 6a are between two upper intermediate areas in the strip running direction B directly one behind the other and consequently adjacent or lower nozzles 5 and 6 are provided.
  • a water cooling unit 7 is now arranged in a plurality of lower intermediate areas 6a and preferably in all intermediate areas 6a which are formed within the floating belt cooler 4.
  • These water cooling units 7 each have one or more water nozzles or rows of water nozzles 8 arranged one behind the other in the strip running direction B and extending transversely to the strip running direction B along the strip width.
  • the floating belt cooler has a plurality of upper nozzle boxes 9, each with a plurality of integrated upper nozzles 5, and a plurality of lower nozzle boxes 10, each with a plurality of integrated lower nozzles 6.
  • the water cooling units provided according to the invention are consequently arranged in the area of the lower nozzle boxes 10, namely between the individual ones lower nozzles of each nozzle box and also between the two lower nozzle boxes 10 arranged one behind the other.
  • the upper nozzle boxes 9 and / or the lower nozzle boxes 10 are suspended in a height-adjustable manner, so that the distance between the upper nozzles 5 and lower nozzles 6 and consequently the vertical distance can be adjusted by adjusting the height of one or both nozzle boxes.
  • actuators or the like can be provided.
  • the Figures 1 and 2 show the continuous cooling device 3 according to the invention in a first embodiment, in which the upper nozzles 5 are arranged offset to the lower nozzles 6 along the strip running direction B, so that the metal strip 1 is floated sinusoidally or undulating.
  • the water cooling units 7 are consequently arranged in a side view in alignment under the opposite upper nozzles 5.
  • FIG. 3 shows Fig. 3 a modified embodiment of a continuous cooling device not according to the invention, in which the upper nozzles 5 on the one hand and the lower nozzles 6 on the other hand are arranged in a side view in pairs in alignment one above the other, so that the band is not floated sinusoidally or undulating.
  • the water cooling units 7 which are essential to the invention are provided in the intermediate areas, which are consequently also integrated in the floating belt cooler 4.
  • Fig. 4 shows an alternative embodiment of a once-through cooling device. Based on the embodiment according to Fig. 3 with offset arranged upper nozzles 5 and lower nozzles 6, further upper nozzles 5 ′ are additionally arranged between the upper nozzles 5. These additional air nozzles 5 ′ are consequently arranged in alignment above the water cooling units 7.
  • the embodiment thus reproduces Fig. 4 as it were a combination of the embodiments according to Figures 2 and 3
  • the air nozzles 5 ' which are arranged in alignment above the water cooling units 7, prevent any water that is applied to the underside of the belt from reaching the upper side of the belt via the belt edges.
  • the additional (upper) nozzles 5 'can also be connected to the corresponding (upper) nozzle box 9 or also integrated into it. Alternatively, however, separately designed additional nozzles 5 'can also be provided.
  • the metal strip 1, which has previously been subjected to a heat treatment in the strip float furnace 2 can be optimally cooled.
  • the cooling rates can be set sufficiently fast by the combined air and water cooling to freeze the metallurgical properties achieved in the course of the heat treatment. In this case, however, cooling speeds that are too rapid can be avoided, so that distortions in the course of the cooling of the strip are kept within permissible limits.
  • the fact that there are optimally variable setting options is particularly advantageous, so that the cooling process can be optimally adjusted to the respective desired conditions.
  • the system for heat treatment of the aluminum strip additionally has a further floating strip cooler 11, which works in a conventional manner without water cooling and which is arranged downstream of the floating strip cooler 3 in the strip running direction B. After the combined water and air cooling according to the invention, further cooling takes place with the aid of a conventional floating belt cooler 11.
  • the throughflow cooling device arranged downstream of the furnace 2 can also have an additional water cooling device 12, which is arranged upstream of the strip float cooler 2 on the inlet side.
  • an additional water cooling device 12 which is arranged upstream of the strip float cooler 2 on the inlet side.
  • a so-called “hard quench” is made available in terms of the device at the inlet, so that it is optionally possible to work with conventional, very fast water cooling if required.
  • the system shown is therefore characterized by high flexibility and variability.
  • the continuous cooling device 3 is arranged downstream of a hovering belt furnace 2 and thus a temperature control device
  • the invention also includes embodiments in which the continuous cooling device 3 is arranged downstream of another type of treatment device through which the belt is heated runs or in which the belt is heated. In any case, the strip emerges from the strip treatment device in a heated state and enters the continuous cooling device 3.

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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)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP17700322.5A 2016-02-05 2017-01-10 Durchlaufkühlvorrichtung und verfahren zum abkühlen eines metallbandes Revoked EP3350352B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016102093.1A DE102016102093B3 (de) 2016-02-05 2016-02-05 Durchlaufkühlvorrichtung und Verfahren zum Abkühlen eines Metallbandes
PCT/EP2017/050401 WO2017133867A1 (de) 2016-02-05 2017-01-10 Durchlaufkühlvorrichtung und verfahren zum abkühlen eines metallbandes

Publications (2)

Publication Number Publication Date
EP3350352A1 EP3350352A1 (de) 2018-07-25
EP3350352B1 true EP3350352B1 (de) 2021-11-24

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ID=57796344

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Application Number Title Priority Date Filing Date
EP17700322.5A Revoked EP3350352B1 (de) 2016-02-05 2017-01-10 Durchlaufkühlvorrichtung und verfahren zum abkühlen eines metallbandes

Country Status (8)

Country Link
US (1) US11072834B2 (ru)
EP (1) EP3350352B1 (ru)
KR (1) KR20180109864A (ru)
CN (1) CN108431250A (ru)
CA (1) CA3004532A1 (ru)
DE (1) DE102016102093B3 (ru)
RU (1) RU2744007C2 (ru)
WO (1) WO2017133867A1 (ru)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10900098B2 (en) * 2017-07-04 2021-01-26 Daido Steel Co., Ltd. Thermal treatment furnace
DE102019102595A1 (de) * 2019-02-01 2020-08-06 Otto Junker Gmbh Verfahren zum Abkühlen von bewegtem metallischen Material sowie Vorrichtung zur Durchführung eines solchen Verfahrens
DE102019105167B3 (de) 2019-02-28 2020-08-13 Ebner Industrieofenbau Gmbh Schwebebandofen
CN111826504A (zh) * 2020-06-05 2020-10-27 中航工程集成设备有限公司 一种气垫炉气液淬火喷嘴结构及气液协同淬火系统
CN112795771A (zh) * 2020-12-30 2021-05-14 阳江宏旺实业有限公司 雾冷器、不锈钢连续退火冷却系统及其冷却方法
CN114769565B (zh) * 2022-03-22 2023-03-24 吴江市亨达机械配件有限责任公司 全自动机器人配件压铸设备用冷却装置

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900991A (en) 1956-03-26 1959-08-25 Ajem Lab Inc Power washer
FR1434336A (fr) 1965-02-18 1966-04-08 Stein & Roubaix Perfectionnements apportés aux fours de traitement thermique des métaux et alliages légers
DE1427810B2 (de) 1962-06-27 1971-08-15 The British Iron And Steel Research Association, London Vorrichtung zum abstuetzen fuehren und foerdern von band und plattenmaterial
CH555285A (de) 1971-04-28 1974-10-31 Monforts Fa A Vorrichtung zum schwebend breitgefuehrten foerdern von warenbahnen.
DE2450000A1 (de) 1974-10-22 1976-05-06 Kramer Carl Vorrichtung zum schwebend fuehren von warenbahnen
DE2521017A1 (de) 1975-05-12 1976-11-25 Erich Hilgeroth Vorrichtung zum behandeln von warenbahnen, vorzugsweise metallbaendern
DE2615258A1 (de) 1976-04-08 1977-10-20 Vits Maschinenbau Gmbh Vorrichtung zum schwebenden fuehren von materialbahnen
EP0192169A2 (de) 1985-02-15 1986-08-27 Otto Junker GmbH Vorrichtung zum berührungsfreien Führen von Warenbahnen, insbesondere Metallbändern, mittels eines Gasmediums
JPS61253329A (ja) 1985-05-01 1986-11-11 Daido Steel Co Ltd 冷却兼シ−ル装置
DE19619547A1 (de) 1996-05-15 1997-11-27 Vits Maschinenbau Gmbh Luftkissendüse und Vorrichtung zur Wärmebehandlung einer kontinuierlich bewegten Warenbahn mit Luftkissendüsen
EP1624078A1 (de) 2004-08-04 2006-02-08 Ebner Industrieofenbau Gesellschaft m.b.H. Vorrichtung zum Kühlen eines Blechbandes
WO2007138152A1 (en) 2006-06-01 2007-12-06 Outokumpu Oyj Method for controlling a metal strip in a heat treatment furnace
DE102006032377A1 (de) 2006-07-13 2008-01-17 Wieland-Werke Ag Düsenfeld zur scwebenden Führung und Stabilisierung von Metallbändern
DE102012110010A1 (de) 2012-10-19 2014-04-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes
DE102014118946A1 (de) 2014-12-18 2016-06-23 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes
DE102016101160A1 (de) 2016-01-22 2017-07-27 Otto Junker Gmbh Vorrichtung zum schwebenden Führen und gleichzeitigem Abkühlen von bahnförmigem Material und Verfahren zum Betreiben einer solchen Vorrichtung

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046273B (de) 1957-02-04 1958-12-11 Owens Illinois Glass Co Verfahren und Vorrichtung zur Herstellung von Glasroehren und -staeben
US4367597A (en) * 1979-12-13 1983-01-11 Nippon Steel Corporation Gas-liquid cooling apparatus
JPS6056218B2 (ja) * 1980-01-18 1985-12-09 大同特殊鋼株式会社 金属ストリツプの熱処理方法
JPS57138782A (en) 1981-02-20 1982-08-27 Hitachi Ltd Fuel cell
DE3129254C1 (de) 1981-07-24 1983-01-27 Carl Prof. Dr.-Ing. Kramer Vorrichtung zur Kuehlung der bewegten Oberflaeche eines Festkoerpers
JPS624833A (ja) * 1985-07-01 1987-01-10 Mitsubishi Heavy Ind Ltd 走行鋼帯の冷却装置
EP0343103B1 (de) 1988-05-19 1992-11-11 Alusuisse-Lonza Services Ag Verfahren und Vorrichtung zum Kühlen eines Gegenstandes
DE4024605A1 (de) * 1990-08-02 1992-02-06 Wsp Ingenieurgesellschaft Fuer Vorrichtung zur abkuehlung von strangpressprofilen
DE4240700C2 (de) * 1992-12-03 2003-11-06 Carl Kramer Vorrichtung zum schwebend Führen einer bewegten Warenbahn
US5640872A (en) 1994-07-20 1997-06-24 Alusuisse-Lonza Services Ltd. Process and device for cooling heated metal plates and strips
JP3489240B2 (ja) * 1995-01-13 2004-01-19 大同特殊鋼株式会社 フローティング炉
US6054095A (en) * 1996-05-23 2000-04-25 Nippon Steel Corporation Widthwise uniform cooling system for steel strip in continuous steel strip heat treatment step
DE19649073C2 (de) * 1996-11-28 2000-12-07 Carl Kramer Vorrichtung zur Abkühlung von Strangpreßprofilen
EP0949348A1 (de) * 1998-04-09 1999-10-13 Alusuisse Technology & Management AG Verfahren zum kontrollierten Abkühlen eines Bandes oder eines Profils aus einer Aluminiumlegierung
DE10046273C2 (de) * 2000-09-19 2003-01-30 Carl Kramer Verfahren und Vorrichtung zur Wärmebehandlung eines Metallbandes
DE50010412D1 (de) * 2000-12-15 2005-06-30 Aft Advanced Forging Technolog Vorrichtung zum Abkühlen und Behandeln erhitzter rotationssymmetrischer Körper aus Metall
DE10207584A1 (de) * 2002-02-22 2003-09-11 Vits Maschb Gmbh I Ins Verfahren zum Abkühlen von Bändern oder Platten aus Metall und Kühlvorrichtung
JP4449991B2 (ja) * 2007-02-26 2010-04-14 Ｊｆｅスチール株式会社 熱延鋼帯の冷却装置及び方法
RU2410177C2 (ru) * 2007-07-30 2011-01-27 Ниппон Стил Корпорейшн Устройство и способ для охлаждения горячего стального листа
FR2940979B1 (fr) * 2009-01-09 2011-02-11 Fives Stein Procede de refroidissement d'une bande metallique en defilement
JP6024219B2 (ja) 2012-06-05 2016-11-09 株式会社豊田自動織機 織機の駆動装置
CN102953021B (zh) * 2012-10-29 2015-08-05 苏州新长光热能科技有限公司 铝合金中厚板固溶处理用快速冷却装置

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900991A (en) 1956-03-26 1959-08-25 Ajem Lab Inc Power washer
DE1427810B2 (de) 1962-06-27 1971-08-15 The British Iron And Steel Research Association, London Vorrichtung zum abstuetzen fuehren und foerdern von band und plattenmaterial
FR1434336A (fr) 1965-02-18 1966-04-08 Stein & Roubaix Perfectionnements apportés aux fours de traitement thermique des métaux et alliages légers
CH555285A (de) 1971-04-28 1974-10-31 Monforts Fa A Vorrichtung zum schwebend breitgefuehrten foerdern von warenbahnen.
DE2450000A1 (de) 1974-10-22 1976-05-06 Kramer Carl Vorrichtung zum schwebend fuehren von warenbahnen
DE2521017A1 (de) 1975-05-12 1976-11-25 Erich Hilgeroth Vorrichtung zum behandeln von warenbahnen, vorzugsweise metallbaendern
DE2615258A1 (de) 1976-04-08 1977-10-20 Vits Maschinenbau Gmbh Vorrichtung zum schwebenden fuehren von materialbahnen
DE3505256C2 (ru) 1985-02-15 1987-01-29 Otto Junker Gmbh, 5107 Simmerath, De
EP0192169A2 (de) 1985-02-15 1986-08-27 Otto Junker GmbH Vorrichtung zum berührungsfreien Führen von Warenbahnen, insbesondere Metallbändern, mittels eines Gasmediums
JPS61253329A (ja) 1985-05-01 1986-11-11 Daido Steel Co Ltd 冷却兼シ−ル装置
DE19619547A1 (de) 1996-05-15 1997-11-27 Vits Maschinenbau Gmbh Luftkissendüse und Vorrichtung zur Wärmebehandlung einer kontinuierlich bewegten Warenbahn mit Luftkissendüsen
EP1624078A1 (de) 2004-08-04 2006-02-08 Ebner Industrieofenbau Gesellschaft m.b.H. Vorrichtung zum Kühlen eines Blechbandes
WO2007138152A1 (en) 2006-06-01 2007-12-06 Outokumpu Oyj Method for controlling a metal strip in a heat treatment furnace
DE102006032377A1 (de) 2006-07-13 2008-01-17 Wieland-Werke Ag Düsenfeld zur scwebenden Führung und Stabilisierung von Metallbändern
DE102012110010A1 (de) 2012-10-19 2014-04-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes
DE102014118946A1 (de) 2014-12-18 2016-06-23 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Vorrichtung und Verfahren zur kontinuierlichen Behandlung eines Metallbandes
DE102016101160A1 (de) 2016-01-22 2017-07-27 Otto Junker Gmbh Vorrichtung zum schwebenden Führen und gleichzeitigem Abkühlen von bahnförmigem Material und Verfahren zum Betreiben einer solchen Vorrichtung

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RU2018122483A3 (ru) 2020-05-12
RU2744007C2 (ru) 2021-03-01
DE102016102093B3 (de) 2017-06-14
RU2018122483A (ru) 2019-12-20
CN108431250A (zh) 2018-08-21
US11072834B2 (en) 2021-07-27
CA3004532A1 (en) 2017-08-10

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