EP0343103A1 - Procédé et dispositif pour refroidir un objet - Google Patents

Procédé et dispositif pour refroidir un objet Download PDF

Info

Publication number
EP0343103A1
EP0343103A1 EP89810325A EP89810325A EP0343103A1 EP 0343103 A1 EP0343103 A1 EP 0343103A1 EP 89810325 A EP89810325 A EP 89810325A EP 89810325 A EP89810325 A EP 89810325A EP 0343103 A1 EP0343103 A1 EP 0343103A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
gas
cooling
liquid
guiding
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.)
Granted
Application number
EP89810325A
Other languages
German (de)
English (en)
Other versions
EP0343103B1 (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 Holdings AG
Schweizerische Aluminium AG
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 Holdings AG, Schweizerische Aluminium AG, Alusuisse Lonza Services Ltd filed Critical Alusuisse Holdings AG
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

Links

Images

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 and a device for carrying out the method.
  • 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 than edge areas.
  • the inventor has set himself the goal of creating a method and a device of the type mentioned at the outset with which the cooling effect can be improved while reducing the gas flow rate.
  • the object is achieved by a method in which a liquid jet sprays through the nozzle opening to form a spray mist with a droplet size of ⁇ 100 ⁇ m and, after exiting the nozzle, accelerates and directs the droplets with gas jets at an angle between 0 and 90 ° to the nozzle axis becomes.
  • the gas flow rate can 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.
  • the object to be cooled e.g. press profiles, rolling belts, rotating rolling cylinders
  • the cooling effect taking place with complete evaporation of the coolant and the heat transfer coefficient of the object to be cooled according to a predetermined desired curve follows.
  • the device according to the invention is characterized by a liquid-carrying nozzle and gas guide channels arranged in the area 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (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)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Gloves (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Extrusion Of Metal (AREA)
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 1983-05-19
CH191088 1988-05-19

Publications (2)

Publication Number Publication Date
EP0343103A1 true EP0343103A1 (fr) 1989-11-23
EP0343103B1 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 (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450935A2 (fr) * 1990-04-03 1991-10-09 Spraying Systems Co. Buse de pulvérisation en cône plein avec atomisation par air extérieur
EP0578607A1 (fr) * 1992-06-19 1994-01-12 Alusuisse-Lonza Services Ag Dispositif de pulvérisation pour le refroidissement de profilés
EP0663241A1 (fr) * 1993-12-17 1995-07-19 PAUL RITZAU PARI-WERK GmbH Buse de pulverisation
WO1995034224A1 (fr) * 1994-06-14 1995-12-21 General Mills, Inc. Revetement de tambour: appareil et procedes
EP0695590A1 (fr) 1994-07-20 1996-02-07 Alusuisse-Lonza Services AG Procédé et dispositif de refroidissement des tÔles et des bandes laminées à chaud
EP0839918A1 (fr) 1996-11-01 1998-05-06 Alusuisse Technology & Management AG Procédé et dispositif pour refroidir un objet
EP0839589A1 (fr) * 1996-11-04 1998-05-06 Alusuisse Technology & Management AG Procédé pour la fabrication d'une corde profilée en métal
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.
DE10207584A1 (de) * 2002-02-22 2003-09-11 Vits Maschb Gmbh I Ins Verfahren zum Abkühlen von Bändern oder Platten aus Metall und Kühlvorrichtung
WO2007087893A1 (fr) * 2006-01-11 2007-08-09 Sms Demag Ag Procede et dispositif de coulee continue
EP2226400A1 (fr) 2009-03-02 2010-09-08 CMI Thermline Services Procédé de refroidissement d'une bande métallique circulant dans une section de refroidissement d'une ligne de traitement thermique en continu, et installation de mise en oeuvre dudit procédé
WO2011004061A1 (fr) * 2009-06-18 2011-01-13 Beneq Oy Procédé et appareil de refroidissement par jet pulvérisé
DE102014108471A1 (de) * 2014-06-17 2015-12-17 Brp-Engineering Gmbh Verfahren und Vorrichtung zum Abschrecken von Werkstücken
WO2023148771A1 (fr) 2022-02-03 2023-08-10 Hindalco Industries Limited Appareil pour le refroidissement de bobines de tôle laminées à chaud

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5800867A (en) * 1992-08-13 1998-09-01 Nordson Corporation Deflection control of liquid or powder stream during dispensing
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
AU4596899A (en) 1998-07-10 2000-02-01 Ipsco Inc. Method and apparatus for producing martensite- or bainite-rich steel using steckel mill and controlled cooling
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
UA89895C2 (ru) * 2006-01-11 2010-03-10 Смс Зімаг Акцієнгезелльшафт Способ и устройство непрерывного литья
DE102008064083A1 (de) * 2008-12-19 2010-06-24 Messer Group Gmbh Vorrichtung und Verfahren zum Kühlen von Oberflächen
KR101034747B1 (ko) * 2009-05-29 2011-05-17 삼성에스디아이 주식회사 믹싱 장치
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
WO2015105432A1 (fr) * 2014-01-13 2015-07-16 Общество С Ограниченной Ответственностью Научно-Производственное Предприятие "Томская Электронная Компания" (Ооо Нпп "Тэк") Procédé et dispositif de traitement thermique d'article en acier
DE102016102093B3 (de) 2016-02-05 2017-06-14 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Durchlaufkühlvorrichtung und Verfahren zum Abkühlen eines Metallbandes
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
DE102018115879A1 (de) 2018-06-29 2020-01-23 Uwe Richter Verfahren und Vorrichtung zur konturnahen Temperierung schalenförmiger Formwerkzeuge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US4531675A (en) * 1983-10-25 1985-07-30 Accuspray, Inc. Spray nozzle
GB2163674A (en) * 1984-08-31 1986-03-05 Spraying Systems Co Air atomizing spray nozzle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675852A (en) * 1970-09-28 1972-07-11 Nikex Nehezipari Kulkere Outer nozzle for the cutting head of a flame cutter
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US4531675A (en) * 1983-10-25 1985-07-30 Accuspray, Inc. Spray nozzle
GB2163674A (en) * 1984-08-31 1986-03-05 Spraying Systems Co Air atomizing spray nozzle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 258 (M-340), 27. November 1984, Seite 68 M 340; & JP-A-59 130 664 (SHIN NIPPON SEITETSU K.K.) 27-07-1984 *

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450935A2 (fr) * 1990-04-03 1991-10-09 Spraying Systems Co. Buse de pulvérisation en cône plein avec atomisation par air extérieur
EP0450935A3 (en) * 1990-04-03 1992-02-26 Spraying Systems Co. Full cone spray nozzle with external air atomization
EP0578607A1 (fr) * 1992-06-19 1994-01-12 Alusuisse-Lonza Services Ag Dispositif de pulvérisation pour le refroidissement de profilés
US5382306A (en) * 1992-06-19 1995-01-17 Alusuisse-Lonza Services Ltd. Spray unit for cooling extruded sections
CH686072A5 (de) * 1992-06-19 1995-12-29 Alusuisse Lonza Services Ag Sprayanlage zum Kuhlen von Profilen.
EP0663241A1 (fr) * 1993-12-17 1995-07-19 PAUL RITZAU PARI-WERK GmbH Buse de pulverisation
US5740966A (en) * 1993-12-17 1998-04-21 Paul Ritzau Pari-Werk Gmbh Nebulizer nozzle
WO1995034224A1 (fr) * 1994-06-14 1995-12-21 General Mills, Inc. Revetement de tambour: appareil et procedes
EP0695590A1 (fr) 1994-07-20 1996-02-07 Alusuisse-Lonza Services AG Procédé et dispositif de refroidissement des tÔles et des bandes laminées à chaud
US5902543A (en) * 1996-11-01 1999-05-11 Alusuisse Technology & Management Ltd. Process and device for cooling an article
EP0839918A1 (fr) 1996-11-01 1998-05-06 Alusuisse Technology & Management AG Procédé et dispositif pour refroidir un objet
AU722395B2 (en) * 1996-11-01 2000-08-03 Alusuisse Technology & Management Ltd. Process and device for cooling an article
EP0839589A1 (fr) * 1996-11-04 1998-05-06 Alusuisse Technology & Management AG Procédé pour la fabrication d'une corde profilée en métal
WO1998019803A1 (fr) * 1996-11-04 1998-05-14 Alusuisse Technology & Management Ag Procede de fabrication par extrusion d'une barre profilee en metal
US6360576B1 (en) 1996-11-04 2002-03-26 Alusuisse Technology & Management Ag Process for extruding a metal section
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.
DE10207584A1 (de) * 2002-02-22 2003-09-11 Vits Maschb Gmbh I Ins Verfahren zum Abkühlen von Bändern oder Platten aus Metall und Kühlvorrichtung
WO2007087893A1 (fr) * 2006-01-11 2007-08-09 Sms Demag Ag Procede et dispositif de coulee continue
US8522858B2 (en) 2006-01-11 2013-09-03 Sms Siemag Aktiengesellschaft Method and apparatus for continuous casting
US8596335B2 (en) 2006-01-11 2013-12-03 Sms Siemag Aktiengesellschaft Method and apparatus for continuous casting
EP2226400A1 (fr) 2009-03-02 2010-09-08 CMI Thermline Services Procédé de refroidissement d'une bande métallique circulant dans une section de refroidissement d'une ligne de traitement thermique en continu, et installation de mise en oeuvre dudit procédé
US8490416B2 (en) 2009-03-02 2013-07-23 Cmi Sa Method of cooling a metal strip traveling through a cooling section of a continuous heat treatment line, and an installation for implementing said method
WO2011004061A1 (fr) * 2009-06-18 2011-01-13 Beneq Oy Procédé et appareil de refroidissement par jet pulvérisé
DE102014108471A1 (de) * 2014-06-17 2015-12-17 Brp-Engineering Gmbh Verfahren und Vorrichtung zum Abschrecken von Werkstücken
WO2023148771A1 (fr) 2022-02-03 2023-08-10 Hindalco Industries Limited Appareil pour le refroidissement de bobines de tôle laminées à chaud

Also Published As

Publication number Publication date
ATE82171T1 (de) 1992-11-15
JPH0225671A (ja) 1990-01-29
JP2647198B2 (ja) 1997-08-27
AU3502989A (en) 1989-11-23
NO174614C (no) 1994-06-08
IS1566B (is) 1994-12-13
AU619293B2 (en) 1992-01-23
CA1316969C (fr) 1993-04-27
NO891950D0 (no) 1989-05-16
NO891950L (no) 1989-11-20
NO174614B (no) 1994-02-28
EP0343103B1 (fr) 1992-11-11
DE58902656D1 (de) 1992-12-17
IS3467A7 (is) 1989-11-20
US4934445A (en) 1990-06-19

Similar Documents

Publication Publication Date Title
EP0343103B1 (fr) Procédé et dispositif pour refroidir un objet
DE2939951C2 (fr)
DE4437933C2 (de) Vorrichtung zum Reinigen eines Werkstückes mit abrasivem CO¶2¶-Schnee
DE2040610A1 (de) Verfahren und Vorrichtung zum Kuehlen von Stahlgegenstaenden
DE3901674A1 (de) Vorrichtung und methode zum verspruehen von fluessigen materialien
DE2130421B2 (de) Verfahren zur Herstellung eines Verbu ndmetallstreif ens
AT409235B (de) Verfahren und vorrichtung zur herstellung von metallpulver
CH617105A5 (en) Process for coating a face of a workpiece by means of a jet of heated gas and molten material, and an application of the process.
EP0429394A1 (fr) Refroidissement de cordes coulées
DE2254491A1 (de) Verfahren zum beschichten von oberflaechen an werkstuecken durch aufspritzen von schichtstoffen, vorzugsweise durch plasmaspritzen sowie anordnung zur durchfuehrung des verfahrens
EP1042093A1 (fr) Procede et dispositif pour produire des poudres fines par atomisation de matieres fondues avec des gaz
DE2053947C3 (de) Verfahren und Vorrichtung zur Erzeugung von Kühlmittelstrahlen für die Abkühlung von Metallgießsträngen
DE3883256T2 (de) Vorrichtung und verfahren zur atomisierung von flüssigkeiten, insbesondere geschmolzenen metallen.
DE3420376C2 (de) Verfahren zum Kühlen von formgeschweißten Werkstückoberflächen vor und/oder nach dem Schweißpunkt mittels eines Wasser-Luft-Gemisches und Vorrichtung zur Durchführung des Verfahrens
DE4208208C2 (de) Verfahren und Vorrichtung zur Verminderung der Zunderbildung beim Warmumformen von Metall, insbesondere von Stahl
DE2951818A1 (de) Verfahren zur fortlaufenden kuehlbehandlung von metallischen werkstuecken, insbesondere blechen
DE2705642A1 (de) Spritzkopf mit reguliermoeglichkeit des spritzstrahles fuer das airless-verfahren und das airless-luft-kombinationsverfahren
WO2005123311A1 (fr) Dispositif et procede de pulverisation de films de liquide
DE2057862C3 (de) Verfahren und Vorrichtung zur Herstellung eines Metallpulvers
DE2818720C2 (de) Verfahren und Vorrichtung zur Herstellung von Metallpulver
DE2260868A1 (de) Verfahren und vorrichtung zur herstellung von metallpulvern
DE2419684C3 (de) Verfahren und Vorrichtung zum Kühlen beim Stranggießen von Metall
DE4430856C2 (de) Verfahren zur Reduzierung und Steuerung der Oberflächenverzunderung beim Warmwalzen von Flachprodukten, insbesondere Warmbändern
DE2456682C3 (de) Verfahren zum Zerstäuben eines Metallstrahls
WO2022253489A1 (fr) Refroidissement forcé par circulation d'air pour refroidir des produits longs en acier

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI NL

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALUSUISSE-LONZA SERVICES AG

17P Request for examination filed

Effective date: 19900226

17Q First examination report despatched

Effective date: 19900822

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 82171

Country of ref document: AT

Date of ref document: 19921115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 58902656

Country of ref document: DE

Date of ref document: 19921217

ET Fr: translation filed
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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080530

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20080421

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20080624

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20080524

Year of fee payment: 20

Ref country code: DE

Payment date: 20080630

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080528

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080529

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090430

BE20 Be: patent expired

Owner name: *ALUSUISSE-LONZA SERVICES A.G.

Effective date: 20090501

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20090501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080519

Year of fee payment: 20