EP0129701A1 - Dispositif pour le refroidissement d'une charge, en particulier de pièces métalliques - Google Patents

Dispositif pour le refroidissement d'une charge, en particulier de pièces métalliques Download PDF

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Publication number
EP0129701A1
EP0129701A1 EP84105678A EP84105678A EP0129701A1 EP 0129701 A1 EP0129701 A1 EP 0129701A1 EP 84105678 A EP84105678 A EP 84105678A EP 84105678 A EP84105678 A EP 84105678A EP 0129701 A1 EP0129701 A1 EP 0129701A1
Authority
EP
European Patent Office
Prior art keywords
chamber
cooling
walls
cooling gas
housing
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
EP84105678A
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German (de)
English (en)
Other versions
EP0129701B1 (fr
Inventor
Peter Schmetz
Dieter Gierse
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.)
Schmetz GmbH and Co KG
Original Assignee
Schmetz GmbH and Co KG
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 Schmetz GmbH and Co KG filed Critical Schmetz GmbH and Co KG
Priority to AT84105678T priority Critical patent/ATE31553T1/de
Publication of EP0129701A1 publication Critical patent/EP0129701A1/fr
Application granted granted Critical
Publication of EP0129701B1 publication Critical patent/EP0129701B1/fr
Expired legal-status Critical Current

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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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
    • 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
    • C21D1/84—Controlled slow cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/16—Arrangements of air or gas supply devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/16—Arrangements of air or gas supply devices
    • F27B2005/161—Gas inflow or outflow
    • F27B2005/162—Gas inflow or outflow through closable or non-closable openings of the chamber walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/16—Arrangements of air or gas supply devices
    • F27B2005/166—Means to circulate the atmosphere
    • F27B2005/169—Means to circulate the atmosphere the atmosphere being continuously renewed by exterior means

Definitions

  • the invention relates to a method for cooling a batch, in particular of metallic workpieces, after heat treatment within a closed chamber of an oven system by blowing with a cooling gas.
  • the invention is also directed to an oven system for carrying out this method.
  • the invention has for its object to develop a method for cooling a batch after heat treatment within a closed chamber of a furnace system by blowing with a cooling gas, which offers the possibility of cooling a batch depending on its circumstances at a predetermined speed to allow and at the same time it is possible to maintain a uniform temperature distribution within the batch.
  • the invention proposes a method in which the temperature distribution in the batch is measured by means of temperature sensors such as thermocouples or the like, and in order to achieve a desired cooling rate and largely uniform temperature distribution in the batch in the event of deviations from the predetermined target values of the measured temperatures the flow of the cooling gas is changed in terms of intensity and / or direction.
  • Another object of the invention is to design a furnace system for carrying out the aforementioned method.
  • an electrical memory in the temperature control system which is used to store the control signals of an initial batch for a programmed control of repeat batches.
  • the advantages which are achieved with the invention essentially consist in the fact that through the targeted use of the cooling gas in the treatment chamber with regard to intensity and / or direction, taking into account the conditions of the batch, cooling is carried out at a predetermined speed and on the other hand, a largely uniform distribution of the temperature within the batch can be brought about. Uniform temperature distribution means maintaining temperature differences within a specified range.
  • the furnace systems also proposed according to the invention enable the aforementioned process steps to be carried out safely in the various customary versions of the treatment chamber.
  • the inclusion of a temperature controller system on the basis of target-actual comparisons between the target values of the temperature specification and the measured actual values also offers the advantage of performing the entire cooling process automatically to be able to.
  • the furnace system shown in FIG. 1 includes a vacuum chamber furnace, which essentially consists of a double-walled cylindrical steel housing 1, which has a removable cover 2 on the underside, and an internal cylindrical treatment chamber 3 with an upstanding cylinder axis and a space on all sides to the inner wall of the steel housing 1. Loading takes place from the underside after removal of the cover 2.
  • the cover can just as well be arranged on the top of the steel housing.
  • partition walls 4 and 5 are arranged in the form of annular disks in the vicinity of the upper and lower ends of the treatment chamber. Through these partitions are in the space between a lower and an upper room 6 and 7 and a middle room.
  • the middle room is divided by two partition walls 8 running in a common axial plane into two semicircular rooms 9, 10.
  • control valves for the inlet are designated E and for the outlet of the cooling gas with A, the affiliation to the respective space 6, 7, 9 or 10 being indicated by the additional digit.
  • the control valves are two-way valves that are actuated electromagnetically or in some other way.
  • FIG. 2 shows a furnace system with a cubic treatment chamber 3 'inside a cylindrical steel housing 1', which is arranged with a horizontally extending cylinder axis.
  • the cover 2 ', with which the loading opening is closed, is located here on an end face of the steel housing 1'.
  • the steel housing 1 ' is shown on the left in cross section and on the right in longitudinal section.
  • the treatment chamber 3 'in the form of a cube has a length in the diagonals which corresponds approximately to the inside diameter of the cylindrical steel housing 1'.
  • partition walls 16, 17 are arranged in the form of circular sections. These partition walls 16 and 17 form a total of six closed rooms, namely one room 18, 19 on each end face and the rooms 20, 21, 22 and 23 on the longitudinal walls of the treatment chamber 3 '.
  • the individual control valves are like in the furnace system according to FIG. 1 with the letters E and A with the addition of a number that corresponds to the reference number of the associated Room coincides.
  • FIG. 4 In the treatment chamber 3 'provided here in the form of a cube, eight different operating states are possible with regard to the guidance of the cooling gas in the interior of the treatment chamber 3'. These different operating states are shown in FIG. 4 in the same way as in FIG. 3 for the furnace system according to FIG. 1.
  • operating states 5 to 8 gas flows can be set which run in opposite directions perpendicular to the plane of the drawing. This is indicated by crosses or dots.
  • the table at the bottom shows the switching positions of the twelve control valves for all eight operating states.
  • the change in the intensity of the different flows of the cooling gas in the interior of the treatment chamber 3 or 3 ′ can be brought about in a simple manner by regulating the delivery rate of the blower device 14.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Control Of Heat Treatment Processes (AREA)
EP84105678A 1983-06-22 1984-05-18 Dispositif pour le refroidissement d'une charge, en particulier de pièces métalliques Expired EP0129701B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84105678T ATE31553T1 (de) 1983-06-22 1984-05-18 Ofenanlage zur kuehlung einer charge, insbesondere aus metallischen werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833322386 DE3322386A1 (de) 1983-06-22 1983-06-22 Verfahren zur kuehlung einer charge nach einer waermebehandlung und ofenanlage zur durchfuehrung des verfahrens
DE3322386 1983-06-22

Publications (2)

Publication Number Publication Date
EP0129701A1 true EP0129701A1 (fr) 1985-01-02
EP0129701B1 EP0129701B1 (fr) 1987-12-23

Family

ID=6202034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105678A Expired EP0129701B1 (fr) 1983-06-22 1984-05-18 Dispositif pour le refroidissement d'une charge, en particulier de pièces métalliques

Country Status (4)

Country Link
US (2) US4634103A (fr)
EP (1) EP0129701B1 (fr)
AT (1) ATE31553T1 (fr)
DE (1) DE3322386A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643401A (en) * 1985-08-28 1987-02-17 Mg Industries Apparatus for cooling a vacuum furnace
EP0253176A2 (fr) * 1986-07-09 1988-01-20 Degussa Aktiengesellschaft Procédé de traitement thermique de pièces d'acier
US4756773A (en) * 1985-08-28 1988-07-12 Mg Industries Method for cooling a vacuum furnace
EP0315590A2 (fr) * 1987-11-03 1989-05-10 Alusuisse-Lonza Services Ag Chambre de refroidissement par convection de matériaux présentant des surfaces
EP0538575A1 (fr) * 1991-10-25 1993-04-28 Ipsen Industries International Gesellschaft Mit Beschränkter Haftung Méthode pour refroidir une charge de pièces pendant un procédé de traitement thermique
EP0562250A1 (fr) * 1992-03-17 1993-09-29 Joachim Dr.-Ing. Wünning Procédé et dispositif de trempe de pièces métalliques
FR2690984A1 (fr) * 1992-05-08 1993-11-12 Fmc Corp Procédé et appareil de gestion de la surpression de four pendant un refroidissement sous pression.
EP0621344A1 (fr) * 1993-04-21 1994-10-26 Ipsen Industries International Gesellschaft Mit Beschränkter Haftung Trempe flexible et adaptive
EP0621345A1 (fr) * 1993-04-19 1994-10-26 Hauzer Holding B.V. Procédé et dispositif pour le traitement thermique de pièces
WO2000018972A1 (fr) * 1998-09-30 2000-04-06 Siemens Aktiengesellschaft Procede et unite de traitement pour refroidir des pieces metalliques portees a haute temperature
EP1754944A3 (fr) * 2005-08-18 2008-04-09 G-M Enterprises Procédé et dispositif du refroidissement dirigé et contrôlé dans des fours sous vide
US8900509B2 (en) 2009-01-14 2014-12-02 Robert Bosch Gmbh Charging frame and quenching device having a charging frame

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5121903A (en) * 1991-03-11 1992-06-16 Vacuum Furnace Systems Corporation Quenching arrangement for a furnace
US5254180A (en) * 1992-12-22 1993-10-19 Air Products And Chemicals, Inc. Annealing of carbon steels in a pre-heated mixed ambients of nitrogen, oxygen, moisture and reducing gas
DE4419332A1 (de) * 1994-06-02 1995-12-14 Wuenning Joachim Industriebrenner mit geringer NO¶x¶-Emission
DE29603022U1 (de) * 1996-02-21 1996-04-18 Ipsen Ind Int Gmbh Vorrichtung zum Abschrecken metallischer Werkstücke
KR100591355B1 (ko) * 2002-03-25 2006-06-19 히로히사 타니구치 핫가스 담금질 장치 및 핫가스 열처리방법
US20060246388A1 (en) * 2005-04-29 2006-11-02 Hauck Manufacturing Company Reduced NOx method of combustion
DE102009052900A1 (de) 2009-11-13 2011-05-19 Ipsen International Gmbh Verfahren und Einrichtung zur Leitung der Strömumg in Industrieöfen für die Wärmebehandlung von metallischen Werkstoffen/Werkstücken
US20120168143A1 (en) * 2010-12-30 2012-07-05 Poole Ventura, Inc. Thermal Diffusion Chamber With Heat Exchanger
US9995481B2 (en) 2011-12-20 2018-06-12 Eclipse, Inc. Method and apparatus for a dual mode burner yielding low NOx emission
CN104022006B (zh) * 2014-05-23 2016-10-26 深圳市华星光电技术有限公司 一种干蚀刻设备及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800782A1 (de) * 1968-10-03 1970-06-11 Gold U Silber Scheideantalt Vo Vakuumofen mit allseitiger Beheizung
DE2624828A1 (de) * 1976-06-03 1977-12-15 Alco Standard Corp Verfahren und vorrichtung zur durchfuehrung einer waermebehandlung von werkstuecken
FR2379607A1 (fr) * 1977-02-03 1978-09-01 Vide & Traitement Sa Procede pour le traitement thermique de metaux
DE3208574A1 (de) * 1982-03-10 1983-09-22 Schmetz Industrieofenbau und Vakuum-Hartlöttechnik KG, 5750 Menden "vakuum-schachtofen"
DE3224971A1 (de) * 1982-07-03 1984-01-05 Schmetz Industrieofenbau und Vakuum-Hartlöttechnik KG, 5750 Menden Vakuum-schachtofen

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Publication number Priority date Publication date Assignee Title
US3438618A (en) * 1966-09-08 1969-04-15 Alco Standard Corp Vacuum heat treating furnace
DE2501360B2 (de) * 1975-01-15 1978-12-07 Ipsen Industries International Gmbh, 4190 Kleve Vakuum-Atmosphärenofen zur Wärmebehandlung von Werkstücken
US4030712A (en) * 1975-02-05 1977-06-21 Alco Standard Corporation Method and apparatus for circulating a heat treating gas
US4171126A (en) * 1978-03-13 1979-10-16 Midland-Ross Corporation Vacuum furnace with cooling means
US4195820A (en) * 1978-04-10 1980-04-01 Pyreflex Corporation Precise thermal processing apparatus
DE2844843C2 (de) * 1978-10-14 1985-09-12 Ipsen Industries International Gmbh, 4190 Kleve Industrieofen zur Wärmebehandlung metallischer Werkstücke
DE3035032C1 (de) * 1980-09-17 1982-08-26 Stahlwerke Röchling-Burbach GmbH, 6620 Völklingen Verfahren zum Waermebehandeln von Drahtbunden und Durchlaufofen zur Durchfuehrung des Verfahrens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800782A1 (de) * 1968-10-03 1970-06-11 Gold U Silber Scheideantalt Vo Vakuumofen mit allseitiger Beheizung
DE2624828A1 (de) * 1976-06-03 1977-12-15 Alco Standard Corp Verfahren und vorrichtung zur durchfuehrung einer waermebehandlung von werkstuecken
FR2379607A1 (fr) * 1977-02-03 1978-09-01 Vide & Traitement Sa Procede pour le traitement thermique de metaux
DE3208574A1 (de) * 1982-03-10 1983-09-22 Schmetz Industrieofenbau und Vakuum-Hartlöttechnik KG, 5750 Menden "vakuum-schachtofen"
DE3224971A1 (de) * 1982-07-03 1984-01-05 Schmetz Industrieofenbau und Vakuum-Hartlöttechnik KG, 5750 Menden Vakuum-schachtofen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HTM HÄRTEREI-TECHNISCHE MITTEILUNGEN, Band 35, Nr. 5, 1980, Seiten 245-250, München, DE; E. HEUMÜLLER: "Neuzeitliche Vakuumanlagen für Wärmebehandlung und Löten" *
IRON AND STEEL, Band 43, Special Issue, 1970, Seiten 27-43, Guildford, GB; R.W. REYNOLDSON et al.: "The vacuum heat treatment of tool steels" *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756773A (en) * 1985-08-28 1988-07-12 Mg Industries Method for cooling a vacuum furnace
US4643401A (en) * 1985-08-28 1987-02-17 Mg Industries Apparatus for cooling a vacuum furnace
EP0253176A2 (fr) * 1986-07-09 1988-01-20 Degussa Aktiengesellschaft Procédé de traitement thermique de pièces d'acier
EP0253176A3 (fr) * 1986-07-09 1989-08-16 Degussa Aktiengesellschaft Procédé de traitement thermique de pièces d'acier
EP0315590A2 (fr) * 1987-11-03 1989-05-10 Alusuisse-Lonza Services Ag Chambre de refroidissement par convection de matériaux présentant des surfaces
EP0315590A3 (fr) * 1987-11-03 1991-05-22 Alusuisse-Lonza Services Ag Chambre de refroidissement par convection de matériaux présentant des surfaces
EP0538575A1 (fr) * 1991-10-25 1993-04-28 Ipsen Industries International Gesellschaft Mit Beschränkter Haftung Méthode pour refroidir une charge de pièces pendant un procédé de traitement thermique
US5452882A (en) * 1992-03-17 1995-09-26 Wunning; Joachim Apparatus for quenching metallic ring-shaped workpieces
EP0562250A1 (fr) * 1992-03-17 1993-09-29 Joachim Dr.-Ing. Wünning Procédé et dispositif de trempe de pièces métalliques
FR2690984A1 (fr) * 1992-05-08 1993-11-12 Fmc Corp Procédé et appareil de gestion de la surpression de four pendant un refroidissement sous pression.
EP0621345A1 (fr) * 1993-04-19 1994-10-26 Hauzer Holding B.V. Procédé et dispositif pour le traitement thermique de pièces
EP0621344A1 (fr) * 1993-04-21 1994-10-26 Ipsen Industries International Gesellschaft Mit Beschränkter Haftung Trempe flexible et adaptive
WO2000018972A1 (fr) * 1998-09-30 2000-04-06 Siemens Aktiengesellschaft Procede et unite de traitement pour refroidir des pieces metalliques portees a haute temperature
US6434949B2 (en) 1998-09-30 2002-08-20 Siemens Aktiengesellschaft Method and treatment device for the cooling of highly heated metal components
EP1754944A3 (fr) * 2005-08-18 2008-04-09 G-M Enterprises Procédé et dispositif du refroidissement dirigé et contrôlé dans des fours sous vide
US7758339B2 (en) 2005-08-18 2010-07-20 Jhawar Industries, Inc. Method and apparatus for directional and controlled cooling in vacuum furnaces
US8900509B2 (en) 2009-01-14 2014-12-02 Robert Bosch Gmbh Charging frame and quenching device having a charging frame

Also Published As

Publication number Publication date
ATE31553T1 (de) 1988-01-15
DE3322386C2 (fr) 1991-02-14
EP0129701B1 (fr) 1987-12-23
DE3322386A1 (de) 1985-01-10
US4713124A (en) 1987-12-15
US4634103A (en) 1987-01-06

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