EP2423337A2 - Procédé de thermorégulation de platines métalliques et dispositif d'échange thermique pour platines métalliques - Google Patents

Procédé de thermorégulation de platines métalliques et dispositif d'échange thermique pour platines métalliques Download PDF

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Publication number
EP2423337A2
EP2423337A2 EP11005174A EP11005174A EP2423337A2 EP 2423337 A2 EP2423337 A2 EP 2423337A2 EP 11005174 A EP11005174 A EP 11005174A EP 11005174 A EP11005174 A EP 11005174A EP 2423337 A2 EP2423337 A2 EP 2423337A2
Authority
EP
European Patent Office
Prior art keywords
heat
heat exchanger
board
exchanger device
heat storage
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.)
Withdrawn
Application number
EP11005174A
Other languages
German (de)
English (en)
Inventor
Steffen Nickler
Ulrich Salamon
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.)
L Schuler GmbH
Original Assignee
Schuler SMG 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 Schuler SMG GmbH and Co KG filed Critical Schuler SMG GmbH and Co KG
Publication of EP2423337A2 publication Critical patent/EP2423337A2/fr
Withdrawn legal-status Critical Current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
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

Definitions

  • the invention relates to a method for tempering metal circuit boards and a heat exchanger device for metal circuit boards.
  • board is preferably understood in the following to be a flat metal sheet, however, the board may already be pre-formed and have a deviating from its planar orientation design. By way of example, it should be assumed that a flat board.
  • a board for the purpose of curing is first heated to a temperature of about 800 ° C to 1000 ° C, then placed in the press and reshaped and while under the forming or pressing force in the Held press until the board or the molded component is cooled to a temperature below a predetermined target temperature.
  • the cooling takes in this way, however, relatively long. Since the press can not be used during this time, the production of a single component according to this procedure is very time-consuming and uneconomical.
  • the invention has for its object to provide a method for tempering a board, in which the energy requirement is substantially reduced.
  • a simple and reliable device for carrying out the method is to be created.
  • a first board is first heated in a heating device to a predetermined temperature, which is preferably above the Austenitmaschinestemperatur. In order to then cool the first board while still using the heat energy stored in it, becomes the first board then inserted into a heat exchanger device in which the first board emits its heat energy partially to a heat storage. After the first board has reached the desired temperature, it is removed from the heat exchanger device and fed to a further processing and in particular a forming.
  • a second board to be heated can be inserted into the heat exchanger device and preheated by the heat energy stored in the heat accumulator, whereupon the second board in the heating device is heated to the predetermined temperature preferably above the austenitizing temperature ,
  • the basic idea is to use the heat energy contained in the first board, which has been heated to the desired temperature, to preheat a subsequent second board by temporarily storing the heat energy in the heat store and subsequently delivering it to the second board to be heated. In this way, the energy consumption during press hardening of boards can be significantly reduced, which is a significant cost savings.
  • the heat exchanger device is alternately charged with a hot, cooling board, which preferably comes directly from the heating device, and then with a board to be heated, which is then preferably supplied to the heating device.
  • the invention is provided in a preferred embodiment that the board placed on their two plate surfaces, each with a heat storage in direct contact and preferably clamped under low force between the heat storage, without thereby however, the board is subjected to plastic deformation.
  • a heat exchanger device for metal circuit boards which has a 1st heat storage and a 2nd heat storage, which are adjustable relative to each other and between which the board is clamped.
  • the heat accumulators are part of a particular hydraulic locking device and can be moved relative to each other by means of a hydraulic drive or adjusting device.
  • the heat storage element is preferably made of a highly thermally conductive material, such as copper or a high thermal conductivity steel.
  • the heat storage element is a so-called two-material system of, for example, a copper body and an aluminum body, which are connected together and in particular soldered, wherein the copper body faces the board.
  • the heat storage element is separated from the housing by means of an insulating layer, which can consist of a fiber cement, for example.
  • thermo oil flows in the heat storage element channels.
  • the heat energy can be dissipated to an external additional heat storage and, if necessary, supplied from this again the heat exchanger device.
  • a cooling device can be integrated in at least one heat storage element and preferably in both heat storage elements.
  • a heating device is arranged in at least one heat storage element in order to optionally accelerate the preheating of the board to be heated.
  • the temperature of the board is detected by sensors which are arranged in the vicinity of the board surface facing the heat storage elements. For optimized process control, a temperature control of the board can be provided on the basis of the detected temperature values.
  • the temperature of the board i. Their cooling or heating can also be carried out only partially, for example, by several cooling and / or heating circuits are provided which can be controlled independently.
  • a heat exchanger device 10 shown in the figure comprises a plurality of vertical supports 12, which are each supported on the ground E. On the upper side of the vertical support 12 there is mounted an upwardly projecting, fixed piston 22a on which a cylinder 22b is slidably fitted at the upper end. The piston 22 a and the cylinder 22 b together form a hydraulic adjusting device 11.
  • the two cylinders 22b are fixedly connected to each other via a bridge 17, on the underside of an upper 2nd heat storage 18 is held.
  • the upper second heat storage 18 comprises a cup-shaped housing 19 which opens downwards and whose interior is lined on all sides with an insulating layer 21, for example made of fiber-reinforced concrete. In the space thus remaining, a plate-shaped heat storage element 18 a is used, which is completely separated by means of the insulating layer 21 of the surrounding housing 19.
  • the bottom of the heat storage element 18a, the bottom of the insulating layer 21 and the bottom of the housing 19 form a plane.
  • a table 13 is arranged, which is supported by supports 14, wherein the supports 14 are height adjustable by means of an adjusting device 23 shown only schematically, as indicated by the double arrows B.
  • a lower 1st heat storage 15 is arranged, which is aligned relative to the upper 2nd heat storage 18 and a cup-shaped, upwardly open housing 16, the interior of which is lined with an insulating layer 25, wherein in the remaining Interior is a plate-shaped heat storage element 15 a is inserted.
  • the top of the plate-shaped heat storage element 15a, the top of the insulating layer 25 and the top of the housing 16 form a plane.
  • Platinenanheber 20 are integrated, which are hydraulically actuated in a manner not shown and can lift a board from the top of the lower 1st heat storage 15, so that the board by means of a transfer device can be taken and fed to a further processing.
  • the bridge 17 with the upper second heat exchanger 18 in the direction of the lower first heat exchanger 15 can be lowered so far (see double arrow A) that a flat, metal board between the upper 2nd heat storage 18 and the lower Heat storage 15 or between the respective heat storage elements 15a and 18a is clamped.
  • a metal board In press-hardening a metal board, it is heated in a heating device, such as an oven, to a temperature above the austenitizing temperature.
  • the board is then removed from the heater and placed in the heat exchanger apparatus 10, i. arranged between the upper 2nd and the lower 1st heat accumulator 18 and 15, which are moved apart in this state, as shown in the figure.
  • the heat exchanger device then closes, i. the upper second heat exchanger 18 is lowered until the board between the upper 2nd heat exchanger 18 and the lower 1st heat exchanger 15 is clamped.
  • the board outputs a part of its heat energy to the plate-shaped heat storage elements 15a and 18a.
  • the heat exchanger device is opened, the board is lifted by means of the Platinenanheber 20 from the lower 1st heat storage 15 and then removed from the heat exchanger device 10.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
EP11005174A 2010-08-24 2011-06-25 Procédé de thermorégulation de platines métalliques et dispositif d'échange thermique pour platines métalliques Withdrawn EP2423337A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010035322 DE102010035322A1 (de) 2010-08-24 2010-08-24 Verfahren zum Temperieren von metallenen Platinen und Wärmetauschervorrichtung für metallene Platinen

Publications (1)

Publication Number Publication Date
EP2423337A2 true EP2423337A2 (fr) 2012-02-29

Family

ID=45044817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11005174A Withdrawn EP2423337A2 (fr) 2010-08-24 2011-06-25 Procédé de thermorégulation de platines métalliques et dispositif d'échange thermique pour platines métalliques

Country Status (2)

Country Link
EP (1) EP2423337A2 (fr)
DE (1) DE102010035322A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873213A (zh) * 2012-10-21 2013-01-16 吉林大学 超高强度钢板局部淬火硬化成形模具
CN103464607A (zh) * 2013-09-26 2013-12-25 哈尔滨工业大学（威海） 一种模块化差温成形热冲压模具
CN104275411A (zh) * 2014-10-24 2015-01-14 东莞市豪斯特热冲压技术有限公司 一种改进型模具结构
WO2017025632A1 (fr) * 2015-08-13 2017-02-16 Ebner Industrieofenbau Gmbh Dispositif à four permettant de traiter thermiquement une platine métallique
DE102017113592A1 (de) 2016-07-20 2018-01-25 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung formgehärteter Fahrzeugbauteile mit unterschiedlichen mechanischen Eigenschaften und Temperiervorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031557A1 (de) * 2009-03-02 2010-09-09 Sms Siemag Ag Energierückgewinnung in Warmbandstraßen durch Umwandlung der Kühlwärme der Stranggießanlage sowie der Restwärme von Brammen und Coils in elektrische Energie oder sonstige Nutzung der aufgefangenen Prozesswärme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873213A (zh) * 2012-10-21 2013-01-16 吉林大学 超高强度钢板局部淬火硬化成形模具
CN103464607A (zh) * 2013-09-26 2013-12-25 哈尔滨工业大学（威海） 一种模块化差温成形热冲压模具
CN104275411A (zh) * 2014-10-24 2015-01-14 东莞市豪斯特热冲压技术有限公司 一种改进型模具结构
WO2017025632A1 (fr) * 2015-08-13 2017-02-16 Ebner Industrieofenbau Gmbh Dispositif à four permettant de traiter thermiquement une platine métallique
CN108138248A (zh) * 2015-08-13 2018-06-08 艾伯纳工业筑炉有限公司 用于热处理金属板的炉装置
CN108138248B (zh) * 2015-08-13 2020-03-17 艾伯纳工业筑炉有限公司 用于热处理金属板的炉装置
US11131001B2 (en) 2015-08-13 2021-09-28 Ebner Industrieofenbau Gmbh Oven device for heat-treating a metal blank
DE102017113592A1 (de) 2016-07-20 2018-01-25 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung formgehärteter Fahrzeugbauteile mit unterschiedlichen mechanischen Eigenschaften und Temperiervorrichtung
DE102017113592B4 (de) 2016-07-20 2018-12-06 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung formgehärteter Fahrzeugbauteile mit unterschiedlichen mechanischen Eigenschaften und Temperiervorrichtung

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Publication number Publication date
DE102010035322A1 (de) 2012-03-01

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