EP1555330A2 - Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces - Google Patents

Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces Download PDF

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Publication number
EP1555330A2
EP1555330A2 EP05008611A EP05008611A EP1555330A2 EP 1555330 A2 EP1555330 A2 EP 1555330A2 EP 05008611 A EP05008611 A EP 05008611A EP 05008611 A EP05008611 A EP 05008611A EP 1555330 A2 EP1555330 A2 EP 1555330A2
Authority
EP
European Patent Office
Prior art keywords
workpieces
chamber
transport chamber
treatment
transport
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
EP05008611A
Other languages
German (de)
English (en)
Other versions
EP1555330A3 (fr
EP1555330B1 (fr
Inventor
Jörg Müller-Ziller
Franz Bless
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.)
Ipsen International GmbH
Original Assignee
Ipsen International GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8176310&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1555330(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ipsen International GmbH filed Critical Ipsen International GmbH
Publication of EP1555330A2 publication Critical patent/EP1555330A2/fr
Publication of EP1555330A3 publication Critical patent/EP1555330A3/fr
Application granted granted Critical
Publication of EP1555330B1 publication Critical patent/EP1555330B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • 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
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path

Definitions

  • the invention relates to a device for transporting metallic Workpieces, in particular during a heat treatment, with a heat-insulated transport chamber for receiving the workpieces, means for loading and unloading the workpieces and a transport chamber is provided moving landing gear.
  • the invention further relates to a plant for heat treatment of metallic workpieces, at least two treatment chambers in which the workpieces heat treatable are, has.
  • the invention has a method for Transporting metallic workpieces during a heat treatment to do, in which the workpieces in a heat-insulated transport chamber between at least two treatment chambers in which the workpieces are heat-treatable, transported.
  • a heat treatment plant is also known, a vacuum oven, a lock and a mobile transport chamber having.
  • the transport chamber is via the lock to the vacuum furnace coupled.
  • the heat insulated to the outside and with a hermetic closing door provided transport chamber also has a Heating device for heating the workpieces and a conveyor for loading and unloading the workpieces.
  • a certain temperature heated workpieces in another Treatment chamber such as a quenching chamber, transfer, is the Transport chamber coupled to the lock and preheated. Subsequently Both the lock and the transport chamber with an inert gas up to a pressure greater than the ambient pressure flooded to prevent air from entering the lock or the transport chamber from the outside arrives.
  • the workpieces in the vacuum oven are then on cooled in the transport chamber temperature, and the Vacuum furnace is also flooded with inert gas. After in a vacuum oven and in the lock or transport chamber the same Pressure level is reached, the door of the vacuum oven is opened and the Workpieces by means of the conveyor of the transport chamber in this loaded into it.
  • a device for Transporting metallic workpieces known with a Transport chamber for receiving the workpieces, means for loading and Unloading the workpieces and a transport chamber moving Suspension wherein the transport chamber can be moved horizontally, formed vacuum-tight and on a the workpieces before Environmental influences protective vacuum is evacuable as well as a horizontal batch loading and unloading device contains.
  • the transport chamber not formed thermally insulated.
  • the temperature within the Transport chamber of the known from FR-A-2,782,156 device not be kept constant, so that it adversely unwanted temperature drops within the transport chamber can come.
  • the previously known from FR-A-2,782,156 Device not for the transportation of during a heat treatment suitable before Termperaturschwankache to be protected workpieces.
  • the invention has for its object to provide an apparatus and method for transporting metallic workpieces and a plant for heat treatment of these workpieces, which allow a comparatively flexible and efficient way transport of the workpieces between a plurality of treatment chambers during a heat treatment.
  • a device for transporting metallic workpieces in particular during a heat treatment, with a heat-insulated transport chamber for receiving the workpieces, means for loading and unloading of the workpieces and a transport chamber moving chassis, the transport chamber horizontally movable, vacuum-tight formed and on the workpieces from environmental influences protective vacuum can be evacuated and a horizontal batch loading and unloading device, wherein the transport chamber is heated, and wherein the transport chamber is provided with a replaceable thermal insulation.
  • Such a trained device offers in comparison to the in State of the art stationary transfer locks a flexible Transport of workpieces during a heat treatment. That's the way to go about individual treatment chambers of a heat treatment plant for Maintenance or repair work from the process cycle exclude, without the other treatment chambers thereby in Be affected. Also the extension of an existing one Heat treatment plant to additional treatment chambers is with the inventive device without much effort possible.
  • the device is equipped with a vacuum pump is provided for evacuating the transport chamber.
  • a vacuum pump is provided for evacuating the transport chamber. This offers the advantage that the device with respect to the evacuation of the transport chamber self-sufficient and thus independent of the respective type of Treatment chambers is. It can therefore, for example, both Dock vacuum or atmospheric furnaces as well as on cooling chambers.
  • the provision of a vacuum pump allows the Transport chamber also be evacuated during transport can. This comes into play, for example, when loading the Workpieces from a treatment chamber in the transport chamber in the treatment chamber located atmosphere in the transport chamber is allowed to expand to the heat treatment in this atmosphere during transport until just before reaching the next one Continuing treatment chamber.
  • the Transport chamber already due to their thermal insulation one Temperature drop of the workpieces counteracts, resulting in short Transport routes is usually sufficient, but it can in cases of Heat treatment with high temperatures may be required Workpieces by an additional heat input on the desired Keep temperature.
  • the transport chamber with a replaceable to provide thermal insulation. Such isolation can be for Replace repair and maintenance without hindrance.
  • she offers Furthermore, the advantage that due to their low heat storage, the Temperature of the transport chamber changed within a few minutes, the means the different temperatures of several treatment chambers can be adapted.
  • the Insulation made of steel, for example a chromium-nickel steel.
  • the transport chamber with a hermetically closing Loading door actuated by a drive to one automatic docking of the transport chamber to a treatment chamber sure.
  • the Transport chamber additionally with a hermetically closing mounting door to provide. For example, by means of an external Hublade Corporations the Transport chamber thus regardless of the circumstances may not be free accessible loading door to be unloaded through the mounting door.
  • Transport chamber horizontally pivotable or horizontal and / or vertical direction to be arranged in a straight line on the chassis.
  • the latter variant is used, for example, if several Treatment chambers are arranged vertically one above the other.
  • the Suspension in such a way that it turns the device on the Job allows. So it is about two-sided one Heat treatment line with respect to their loading side vis-à-vis arranged treatment chambers sufficient in this case, the Transport chamber in an economically favorable manner only with a loading door to provide.
  • the chassis is depending on the operational Need rail-bound or sunk into the ground Induction loops freely steerable. For convenient loading of the workpieces from a treatment chamber in the transport chamber or the other way around, it has also proved useful to and unloading the workpieces have a loading fork, which is horizontal and is vertically movable.
  • Such a heat treatment plant makes the related with the device described above for transporting metallic Benefit from workpieces. By providing the lock It is ensured that the workpieces from environmental influences protected between a treatment chamber and the transport chamber can be shipped.
  • the inventive Heat treatment plant is characterized by great flexibility in Regard to the transport of workpieces between the individual Treatment chambers, which also results in a relatively high Throughput and thus efficient in economic terms Achieve process management.
  • the Lock To be as compact and relatively lightweight Designing the transport chamber, it is useful to the Lock to arrange stationary at the treatment chamber. This has to Result that a lock is to be provided on each treatment chamber. In general, however, the lock can also be an integrated part of Transport chamber or even be mobile. The latter version is Although associated with a higher design effort, but offers about when the heat treatment plant over a large number at treatment chambers, each with long residence times of the workpieces has, so that a mobile lock in time unproblematic can be used for several treatment chambers.
  • the lock is separately evacuated, so that regardless of the type of treatment chamber, for example Vacuum oven or atmospheric oven, is to operate. It is also on this Way possible, the lock already during the transport of Transport chamber to the appropriate treatment chamber evacuate to ensure the fastest possible procedure. ever However, after application, it is also conceivable that the lock through a arranged on the transport chamber vacuum pump is evacuated.
  • the lock has a drive through which the loading door of the Transport chamber is actuated. This contributes to a special lightweight design of the transport chamber and thus to relatively low cost of conveying the workpieces between the individual treatment chambers.
  • the Treatment chamber suitably a vacuum oven, a Atmosphere oven or a cooling chamber.
  • the solution to the above problem in a method having the features mentioned is characterized in that the vacuum-tight transport chamber is evacuated to a workpieces from environmental influences protective vacuum and the workpieces are transported in this vacuum from one treatment chamber to the next.
  • the transport of the workpieces in one to a given vacuum evacuated transport chamber has been mainly for the transport of heated a relatively high temperature of, for example, 1000 ° C Workpieces proved to be extremely advantageous. Unlike the im State of the art known transport of the workpieces in one Atmosphere of inert gas can be in this way namely often avoid unwanted temperature drop.
  • the Transport chamber by means of a lock to the respective Coupling treatment chamber to those described above Benefits to use.
  • the device shown in Fig. 1a for transporting metallic Workpieces 20 has a heat-insulated and vacuum-tight to the outside trained, cylindrical transport chamber 10 for receiving the a batch of assembled workpieces 20 and a the Transport chamber 10 moving chassis 30.
  • the device is also with means 40 for loading and unloading of the workpieces 20 provided, which have a horizontally movable pawl 41.
  • a electromechanical drive can be the latch 41 by means of a forward and move backward pressure chain 43 in the horizontal direction, the Guiding the empty strand in a vertically arranged receptacle 42 is made. In this way, it is ensured that all Start mission Braking in terms of a reliable Dispatch of the workpieces 20 of the transport chamber 10 in a Run treatment chamber 50 or vice versa soft.
  • the transport chamber 10 th a flange 11 for a vacuum pump, not shown.
  • the Transport chamber 10 with a replaceable thermal insulation 12th made of, for example, chromium-nickel steel and has in addition to a current feedthrough 13 connected heating elements 14.
  • the Heating elements 14 allow heating of the empty transport chamber 10th to approx. 1000 ° C in the shortest possible time at a control temperature of approx. ⁇ 5 ° C.
  • the transport chamber 10 On its front side, the transport chamber 10 is hermetically sealed closing loading door 15 provided by a in the present case hydraulically, depending on the application but also electrically or pneumatically actuatable drive 16 can be raised in the vertical direction.
  • opening or closing the loading door 15 moves in one double-walled portal 17, on which the transport chamber 10th remote side coupling means 18 are arranged.
  • Coupling means 18 With the help of Coupling means 18, the transport chamber 10 can be vacuum-tight to a only hint lock port 60 dock.
  • the provided with wheels 31 chassis 30 of the device is by a controlled by an inverter and thus soft starting or braking gear motor driven.
  • the one Positioning accuracy of approx. ⁇ 1 mm permitting travel speed the free-wheeling in all directions and rotating on the spot Chassis 30 is only between 0.01 m / s and 0.03 m / s, so that additional protective measures, such as a grid arrangement, dispensable are.
  • safety devices provided to hitting a Obstacle to trigger an emergency stop.
  • Rails 32 are arranged, through which the transport chamber 10 relative to The chassis 30 can be moved on a distance of about 200 mm.
  • the Transport chamber 10 is thereby not shown Hydraulic cylinder moves.
  • Treatment chambers 50 are in this case as vacuum preheating chamber 50a, Vacuum carburizing chambers 50b, diffusion chambers 50c and Gas quenching chamber 50d - or oil or Salt bath quenching chamber - formed.
  • the thermal insulation 13 and the heating elements 14 provide while sure that the workpieces 20 experience no loss of temperature.
  • Upon reaching the position of the corresponding carburizing chamber 50b opens one of the loading door 15 opposite the second door on Rails 71 linearly movable transport device 70, and the Workpieces 20 are over the standing on this treatment chamber 50 Lock 60 by means of the loading fork 41 in the carburizing 50b postponed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (AREA)
EP05008611A 2001-01-26 2001-01-26 Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces Revoked EP1555330B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01101852A EP1229137B1 (fr) 2001-01-26 2001-01-26 Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01101852A Division EP1229137B1 (fr) 2001-01-26 2001-01-26 Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces

Publications (3)

Publication Number Publication Date
EP1555330A2 true EP1555330A2 (fr) 2005-07-20
EP1555330A3 EP1555330A3 (fr) 2006-04-12
EP1555330B1 EP1555330B1 (fr) 2007-05-09

Family

ID=8176310

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01101852A Expired - Lifetime EP1229137B1 (fr) 2001-01-26 2001-01-26 Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces
EP05008611A Revoked EP1555330B1 (fr) 2001-01-26 2001-01-26 Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01101852A Expired - Lifetime EP1229137B1 (fr) 2001-01-26 2001-01-26 Installation et procédé pour transporter des pièces métalliques ainsi qu'une installation pour le traitement thermique de ces pièces

Country Status (6)

Country Link
US (1) US6749800B2 (fr)
EP (2) EP1229137B1 (fr)
CN (1) CN1374408A (fr)
AT (2) ATE335859T1 (fr)
DE (2) DE50112495D1 (fr)
ES (2) ES2270907T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
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US6902635B2 (en) 2001-12-26 2005-06-07 Nitrex Metal Inc. Multi-cell thermal processing unit
US6901990B2 (en) 2002-07-18 2005-06-07 Consolidated Engineering Company, Inc. Method and system for processing castings
DE20305423U1 (de) * 2003-04-04 2004-08-12 Ipsen International Gmbh Vorrichtung zum Transportieren metallischer Werkstücke
EP1473372B1 (fr) * 2003-04-11 2006-05-31 Ipsen International GmbH Dispositif pour le transport de pièces métalliques
DE50311015D1 (de) * 2003-11-14 2009-02-12 Ipsen Int Gmbh Vorrichtung und Verfahren zur Wärmebehandlung metallischer Werkstücke
DE10359458B4 (de) * 2003-12-17 2009-09-24 Ald Vacuum Technologies Gmbh Vorrichtung zur verketteten Wärmebehandlung von Werkstücken unter Unterdruck
FR2874079B1 (fr) * 2004-08-06 2008-07-18 Francis Pelissier Machine de traitement thermochimique de cementation
US8016592B2 (en) * 2008-01-01 2011-09-13 Dongguan Anwell Digital Machinery Ltd. Method and system for thermal processing of objects in chambers
US8662888B2 (en) * 2008-11-19 2014-03-04 Ipsen, Inc. Loading system for a heat treating furnace
DE102009041927B4 (de) 2009-09-17 2015-08-06 Hanomag Härtecenter GmbH Verfahren zur Niederdruckaufkohlung metallischer Werkstücke
CN102445083B (zh) * 2011-12-19 2014-11-26 青岛科技大学 一种用于连续生产式真空气氛炉的成批进出料系统及其成批进出料方法
PL2607504T3 (pl) * 2011-12-23 2018-07-31 Ipsen International Gmbh Mechanizm do transportu ładunku dla układu do obróbki cieplnej z wieloma stacjami
PL228603B1 (pl) * 2015-02-04 2018-04-30 Seco/Warwick Spolka Akcyjna Piec wielokomorowy do nawęglania próżniowego i hartowania kół zębatych, wałków, pierścieni i tym podobnych detali
US20170074589A1 (en) 2015-09-11 2017-03-16 Ipsen Inc. System and Method for Facilitating the Maintenance of an Industrial Furnace
CN110453058B (zh) * 2019-08-09 2021-05-25 江苏良川科技发展有限公司 一种氨基气氛辊棒炉生产系统
DE102020104381A1 (de) * 2020-02-19 2021-08-19 Pro-Beam Gmbh & Co. Kgaa Elektronenstrahlanlage und Verfahren zur additiven Herstellung eines Werkstücks

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Also Published As

Publication number Publication date
US20020146659A1 (en) 2002-10-10
US6749800B2 (en) 2004-06-15
EP1555330A3 (fr) 2006-04-12
EP1555330B1 (fr) 2007-05-09
CN1374408A (zh) 2002-10-16
ATE362000T1 (de) 2007-06-15
ES2285597T3 (es) 2007-11-16
DE50110689D1 (de) 2006-09-21
DE50112495D1 (de) 2007-06-21
ES2270907T3 (es) 2007-04-16
EP1229137A1 (fr) 2002-08-07
ATE335859T1 (de) 2006-09-15
EP1229137B1 (fr) 2006-08-09

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