EP0343103B1 - Procédé et dispositif pour refroidir un objet - Google Patents

Procédé et dispositif pour refroidir un objet Download PDF

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Publication number
EP0343103B1
EP0343103B1 EP89810325A EP89810325A EP0343103B1 EP 0343103 B1 EP0343103 B1 EP 0343103B1 EP 89810325 A EP89810325 A EP 89810325A EP 89810325 A EP89810325 A EP 89810325A EP 0343103 B1 EP0343103 B1 EP 0343103B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
gas
cooling
process according
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89810325A
Other languages
German (de)
English (en)
Other versions
EP0343103A1 (fr
Inventor
Miroslaw Plata
Kurt Buxmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alusuisse Lonza Services Ltd filed Critical Alusuisse Lonza Services Ltd
Priority to AT89810325T priority Critical patent/ATE82171T1/de
Publication of EP0343103A1 publication Critical patent/EP0343103A1/fr
Application granted granted Critical
Publication of EP0343103B1 publication Critical patent/EP0343103B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1246—Nozzles; Spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0861—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with one single jet constituted by a liquid or a mixture containing a liquid and several gas jets
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching

Definitions

  • the invention relates to a method for cooling an object by spraying a gas / liquid mixture in the form of a mist onto the surface of the object by means of at least one nozzle.
  • Atomized air / water mixtures have the advantage of a lower explosion risk compared to the pure application of water when cooling continuous cast ingots, since the water mist hitting the surface can be adjusted in such a way that it practically completely evaporates.
  • Venturi nozzles of this type have the disadvantage that the amount of air required to form the water mist is extraordinarily large.
  • the cooling intensity on the surface exposed to the water mist is very different locally, since the surface area lying in the nozzle axis is cooled much more strongly than edge areas.
  • the inventor has set himself the goal of creating a method of the type mentioned at the outset with which the cooling effect can be improved while reducing the gas flow rate.
  • this is achieved in that a liquid jet is sprayed through the nozzle opening to form a spray with droplet size ⁇ 100 ⁇ m and after exiting the nozzle is acted upon by gas jets at an angle between 0 and 90 ° to the nozzle axis to accelerate and direct the droplets.
  • the procedure according to the invention enables the gas flow rate to be reduced by a multiple compared to a jet mixing process based on the Venturi nozzle.
  • the atomization of the liquid jet according to the invention and the acceleration of the droplets after the nozzle opening result in a uniform distribution of the cooling intensity over the surface of the liquid mist on the surface of the object to be cooled.
  • the intensity of the gas jets is regulated independently of one another. This makes it possible to change the direction of the conically atomized liquid jet formed after the nozzle opening over a wide range. With a given arrangement of nozzles, this enables the cooling of the object to be cooled to be fine-tuned.
  • Coolant Any coolant can be used as the cooling liquid, water being preferred in most cases.
  • Air can be used as the gas, but other gases such as nitrogen or argon can also be used.
  • the method is particularly suitable for cooling conventionally or electromagnetically cast strands as well as rolled and pressed products made of metal, in particular aluminum.
  • the method is also suitable for cooling hot surfaces with complete evaporation of the coolant, the cooling intensities preferably being between 500 and 3000 W / m2 ° K.
  • a device suitable for carrying out the method according to the invention is characterized by a liquid-carrying nozzle and gas guide channels arranged in the region of the nozzle opening at an angle between 0 and 90 ° to the nozzle axis.
  • two gas guide channels arranged symmetrically and concentrically to the nozzle axis are provided, which can be acted upon independently of one another by gas of different pressure.
  • gas jet arrangements with three or more gas guide channels are also possible, which are preferably also arranged symmetrically and concentrically to the nozzle axis.
  • a device R for cooling an object consists of a part 1 which has a water-carrying nozzle 3 with a nozzle opening 4 and which is penetrated by two diametrically opposite bores 5a, b for gas guidance.
  • the supply lines for water and air are shown schematically.
  • the part 1 is fitted into a counterpart 2 with the formation of cavities 6a, b in the form of ring segments and adjoining gas guide channels 7a, b.
  • the gas guide channels 7a, b form an angle ⁇ of, for example, 45 ° with the nozzle axis x.
  • the direction of the conical water jet 9 can be changed over a wide range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Continuous Casting (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Extrusion Of Metal (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Gloves (AREA)

Claims (7)

  1. Procédé pour refroidir un objet par atomisation d'un mélange gaz/liquide sous forme d'un brouillard sur la surface de l'objet, à l'aide d'au moins une buse, caractérisé en ce qu'un jet de liquide est atomisé à travers l'ouverture de la buse pour former un brouillard atomisé d'une taille de gouttelettes inférieure à 100 µm et est soumis après sa sortie de la buse à des jets de gaz formant un angle (α) compris entre 0 et 90° avec l'axe (x) de la buse pour l'accélération et le changement de direction des gouttelettes.
  2. Procédé selon la revendication 1, caractérisé en ce que les intensités des jets de gaz sont réglées indépendamment les unes des autres.
  3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que l'on utilise l'air comme gaz.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on utilise l'eau comme liquide.
  5. Utilisation du procédé selon la revendication 1 pour refroidir des barres coulées de manière conventionnelle ou par voie électromagnétique ainsi que des cylindres et des produits emboutis en métal, en particulier en aluminium.
  6. Utilisation du procédé selon la revendication 1 pour refroidir des surfaces chaudes avec évaporation totale du réfrigérant, de préférence sous des intensités de refroidissement de 500 à 3 000 W/m² °K.
  7. Utilisation du procédé selon la revendication 1 pour refroidir des objets qui passent devant un système de buses fixe, l'effet de refroidissement se produisant avec évaporation totale du réfrigérant et le coefficient de transmission thermique de l'objet à refroidir suivant une courbe de référence prédéterminée.
EP89810325A 1988-05-19 1989-05-01 Procédé et dispositif pour refroidir un objet Expired - Lifetime EP0343103B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810325T ATE82171T1 (de) 1988-05-19 1989-05-01 Verfahren und vorrichtung zum kuehlen eines gegenstandes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1910/88 1988-05-19
CH191088 1988-05-19

Publications (2)

Publication Number Publication Date
EP0343103A1 EP0343103A1 (fr) 1989-11-23
EP0343103B1 true EP0343103B1 (fr) 1992-11-11

Family

ID=4221457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810325A Expired - Lifetime EP0343103B1 (fr) 1988-05-19 1989-05-01 Procédé et dispositif pour refroidir un objet

Country Status (9)

Country Link
US (1) US4934445A (fr)
EP (1) EP0343103B1 (fr)
JP (1) JP2647198B2 (fr)
AT (1) ATE82171T1 (fr)
AU (1) AU619293B2 (fr)
CA (1) CA1316969C (fr)
DE (1) DE58902656D1 (fr)
IS (1) IS1566B (fr)
NO (1) NO174614C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017133867A1 (fr) 2016-02-05 2017-08-10 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Dispositif de refroidissement en continu et procédé de refroidissement d'une bande métallique
DE102018115879A1 (de) 2018-06-29 2020-01-23 Uwe Richter Verfahren und Vorrichtung zur konturnahen Temperierung schalenförmiger Formwerkzeuge

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072883A (en) * 1990-04-03 1991-12-17 Spraying Systems Co. Full cone spray nozzle with external air atomization
US5169071A (en) * 1990-09-06 1992-12-08 Nordson Corporation Nozzle cap for an adhesive dispenser
US5065943A (en) * 1990-09-06 1991-11-19 Nordson Corporation Nozzle cap for an adhesive dispenser
CH686072A5 (de) * 1992-06-19 1995-12-29 Alusuisse Lonza Services Ag Sprayanlage zum Kuhlen von Profilen.
US5800867A (en) * 1992-08-13 1998-09-01 Nordson Corporation Deflection control of liquid or powder stream during dispensing
ATE168289T1 (de) * 1993-12-17 1998-08-15 Pari Gmbh Zerstäuberdüse
US5453383A (en) * 1994-06-14 1995-09-26 General Mills, Inc. Method of applying sugar coating by using steam assisted discharge nozzle
US5640872A (en) 1994-07-20 1997-06-24 Alusuisse-Lonza Services Ltd. Process and device for cooling heated metal plates and strips
US6264767B1 (en) 1995-06-07 2001-07-24 Ipsco Enterprises Inc. Method of producing martensite-or bainite-rich steel using steckel mill and controlled cooling
CA2259625A1 (fr) * 1996-07-08 1998-01-15 Spraychip Systems Corp. Dispositif d'atomisation a l'aide de gaz
ATE213785T1 (de) * 1996-11-01 2002-03-15 Alcan Tech & Man Ag Verfahren und vorrichtung zum kühlen eines gegenstandes
EP0839589A1 (fr) 1996-11-04 1998-05-06 Alusuisse Technology & Management AG Procédé pour la fabrication d'une corde profilée en métal
CA2277392C (fr) 1998-07-10 2004-05-18 Ipsco Inc. Procede et appareil de trempage differentiel
NL1010262C2 (nl) * 1998-10-07 2000-04-10 Hoogovens Corporate Services B Werkwijze en inrichting voor het gieten van vloeibaar aluminium of aluminiumlegeringen tot blokken.
US6705142B1 (en) * 1999-08-07 2004-03-16 Henkel Kommanditgesellschaft Auf Aktien Metal shaping process using a novel two phase cooling lubricant system
JP2002275603A (ja) * 2001-03-16 2002-09-25 Kobe Steel Ltd 熱処理型アルミニウム合金押出材のプレス焼入れ方法及びプレス焼入れ用冷却装置
DE10207584A1 (de) * 2002-02-22 2003-09-11 Vits Maschb Gmbh I Ins Verfahren zum Abkühlen von Bändern oder Platten aus Metall und Kühlvorrichtung
UA89895C2 (ru) * 2006-01-11 2010-03-10 Смс Зімаг Акцієнгезелльшафт Способ и устройство непрерывного литья
DE102006056683A1 (de) 2006-01-11 2007-07-12 Sms Demag Ag Verfahren und Vorrichtung zum Stranggießen
DE102008064083A1 (de) * 2008-12-19 2010-06-24 Messer Group Gmbh Vorrichtung und Verfahren zum Kühlen von Oberflächen
FR2942629B1 (fr) * 2009-03-02 2011-11-04 Cmi Thermline Services Procede de refroidissement d'une bande metallique circulant dans une section de refroidissement d'une ligne de traitement thermique en continu, et installation de mise en oeuvre dudit procede
KR101034747B1 (ko) * 2009-05-29 2011-05-17 삼성에스디아이 주식회사 믹싱 장치
FI125490B (fi) * 2009-06-18 2015-10-30 Beneq Oy Menetelmä ja laitteisto materiaalin karkaisemiseksi
CN103590019A (zh) * 2013-10-31 2014-02-19 沈阳拓荆科技有限公司 一种立体与平面分区方式的多气体独立通道的喷淋方法
PL3095881T3 (pl) * 2014-01-13 2021-12-20 Scientific And Manufacturing Enterprise "Tomsk Electronic Company" Ltd. Sposób i urządzenie do termicznej obróbki wyrobu stalowego
DE102014108471A1 (de) * 2014-06-17 2015-12-17 Brp-Engineering Gmbh Verfahren und Vorrichtung zum Abschrecken von Werkstücken
US10900098B2 (en) 2017-07-04 2021-01-26 Daido Steel Co., Ltd. Thermal treatment furnace
DE102017119462A1 (de) * 2017-08-25 2019-02-28 Gelupas Gmbh Ausgabevorrichtung zum Versprühen eines sprühfähigen Fluides oder Pulvers
WO2023148771A1 (fr) 2022-02-03 2023-08-10 Hindalco Industries Limited Appareil pour le refroidissement de bobines de tôle laminées à chaud

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US3302399A (en) * 1964-11-13 1967-02-07 Westinghouse Electric Corp Hollow conical fuel spray nozzle for pressurized combustion apparatus
US3693352A (en) * 1970-09-22 1972-09-26 Demag Ag Method and apparatus for cooling wide continuous metal castings, particularly steel castings
US3675852A (en) * 1970-09-28 1972-07-11 Nikex Nehezipari Kulkere Outer nozzle for the cutting head of a flame cutter
FR2256790A1 (en) * 1974-01-04 1975-08-01 Fives Cail Babcock Cooling plant for continuously cast ingots - comprising rows of air and water jets to produce water spray
DE2444613B1 (de) * 1974-09-16 1976-01-29 Mannesmann Ag Verfahren zum aufspruehen eines kuehlmittels beim stranggiessen von stahl- brammen, sowie vorrichtung zur durchfuehrung des verfahrens
DE2751013C3 (de) * 1977-11-15 1981-07-09 Kleinewefers Gmbh, 4150 Krefeld Kühleinrichtung
JPS5719144A (en) * 1980-07-10 1982-02-01 Nippon Steel Corp Conveying method for high-temperature ingot
DE3239042A1 (de) * 1982-10-22 1984-04-26 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zum aufspruehen eines treib- und kuehlmittelgemisches auf eine stahlbramme
JPS59130664A (ja) * 1983-01-14 1984-07-27 Nippon Steel Corp 連続鋳造鋳片用冷却装置
US4531675A (en) * 1983-10-25 1985-07-30 Accuspray, Inc. Spray nozzle
JPS60145980U (ja) * 1984-03-09 1985-09-27 トヨタ自動車株式会社 水噴霧冷却装置
JPS60197275A (ja) * 1984-03-19 1985-10-05 Toyota Motor Corp 水噴霧冷却方法
US4645127A (en) * 1984-08-31 1987-02-24 Spraying Systems Co. Air atomizing spray nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017133867A1 (fr) 2016-02-05 2017-08-10 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Dispositif de refroidissement en continu et procédé de refroidissement d'une bande métallique
DE102018115879A1 (de) 2018-06-29 2020-01-23 Uwe Richter Verfahren und Vorrichtung zur konturnahen Temperierung schalenförmiger Formwerkzeuge

Also Published As

Publication number Publication date
EP0343103A1 (fr) 1989-11-23
NO891950L (no) 1989-11-20
NO891950D0 (no) 1989-05-16
IS1566B (is) 1994-12-13
NO174614C (no) 1994-06-08
DE58902656D1 (de) 1992-12-17
ATE82171T1 (de) 1992-11-15
CA1316969C (fr) 1993-04-27
JP2647198B2 (ja) 1997-08-27
NO174614B (no) 1994-02-28
AU3502989A (en) 1989-11-23
IS3467A7 (is) 1989-11-20
US4934445A (en) 1990-06-19
JPH0225671A (ja) 1990-01-29
AU619293B2 (en) 1992-01-23

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