EP0922778B1 - Modular device for the vacuum heat treatment - Google Patents
Modular device for the vacuum heat treatment Download PDFInfo
- Publication number
- EP0922778B1 EP0922778B1 EP98410138A EP98410138A EP0922778B1 EP 0922778 B1 EP0922778 B1 EP 0922778B1 EP 98410138 A EP98410138 A EP 98410138A EP 98410138 A EP98410138 A EP 98410138A EP 0922778 B1 EP0922778 B1 EP 0922778B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- cells
- cell
- thermal processing
- installation
- 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
Links
Images
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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
-
- 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
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
- F27B9/029—Multicellular type furnaces constructed with add-on modules
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
- F27B9/042—Vacuum furnaces
-
- 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
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B2017/0091—Series of chambers, e.g. associated in their use
Definitions
- the present invention relates to an installation of heat treatment in a rarefied atmosphere of the type comprising several treatment cells connected to a common enclosure waterproof fitted with handling means to transfer a load from one cell to another.
- French patent application 2,537,260 describes a such a heat treatment installation.
- Treatment cells are arranged horizontally and star-shaped inside a sealed cylindrical enclosure with a vertical axis. Cells are served by a central handling device.
- a disadvantage of known installations of this type is that the number of treatment cells is fixed. There is no possibility of upgrading the installation so that it has additional processing cells.
- FR-A-2 487 492 describes a treatment installation thermal effect by a combination of elements modular including a metal enclosure coated with the inside of a layer of thermally material insulation defining an internal volume inside which there are arranged means of transfer and heating or cooling; the combination of said modular elements is arranged inside an enclosure waterproof fitted with an airlock at each of its ends having a structure similar to that of a modular element.
- An object of the present invention is to provide a heat treatment installation chained under atmosphere rarefied able to receive any number of cells of treatment.
- Another object of the present invention is to provide such an installation which allows an intervention particularly easy in the enclosure.
- the enclosure common is a cylinder with horizontal axis of which at least one end is intended to receive a module in the form of a cylindrical extension to which cells are connected additional.
- At least one end of the cylinder has a cover removable in place of which the module can be mounted.
- the handling means include a moving cart parallel to the cylinder axis and serving the cells at by means of a telescopic element.
- one of the cells is an oil quenching cell serving also of loading / unloading cell.
- the carriage moves on rails integral with the enclosure, these rails being extended in the module by rails integral with the module.
- the module is designed to be mounted at one end on the enclosure and by the other end on another module.
- the module is open at both ends, the remaining end open after mounting the module on the enclosure receiving a additional module or cover.
- the installation includes a working gas quenching cell with nitrogen or a mixture comprising at least 50% nitrogen.
- the present invention provides a modular installation. Modularity is made possible thanks to a structure particular installation.
- Figure 1 illustrates in solid lines a basic module 6 of an installation according to the invention and in dotted lines a module additional 8.
- the basic module 6 comprises a sealed enclosure 10 in the form of a cylinder with a horizontal axis.
- the two ends of this cylinder 10, provided with flanges, are blocked by removable waterproof covers 12.
- the treatment cells are laterally connected to cylinder 10 and are in the same horizontal plane.
- Figure 1 illustrates two heat treatment cells 14 arranged one opposite the other, a loading / unloading cell 15, and a gas quenching cell 16 arranged in front of the loading / unloading 15.
- the enclosure cylindrical 10 has lateral cylindrical extensions 10-1 fitted with flanges for sealingly fixing treatment cells, for example using bolts.
- the communication openings heat treatment cells 14 with enclosure 10 are provided with doors (not shown) which are heat-insulated but not waterproof. Indeed, the pressure that is prevailing in the enclosure 10, of the order of 5 millibars, is that which must reign in the treatment cells 14.
- the loading / unloading 15 and the gas quenching cell 16 are fitted with watertight doors, respectively 15-1 and 16-1, at the level of their communication openings with the enclosure 10. Indeed the loading / unloading cell 15 includes a external door 15-2 intended to insert the loads to be treated in the installation. Cell 15 must therefore be able to be atmospheric pressure without disturbing the atmosphere of the enclosure 10. Likewise, he reigns in cell 16, during the quenching operations, a pressure higher than the pressure atmospheric.
- a handling device is in the form of a carriage 18 moving parallel to the axis of the cylinder 10.
- This carriage 18 moves, for example, on rails 20 extending along the length of the cylinder 10.
- the carriage 18 is provided with a telescopic fork 22 which is likely to stretch from side and other side of the carriage 18 to the center of each cell 14 to 16 to pick up and drop off a load during treatment.
- the two cells 14 are, for example, case hardening cells, which will treat two charges 24 practically at the same time.
- the only quenching cell 16 will suffice because the quenching operation is particularly rapid by report on cementation operations.
- a module 8 is mounted on the basic installation shown in dotted lines in FIG. 1.
- This module 8 includes a cylindrical part 10 'which is mounted in the extension of the cylindrical enclosure 10 in place of one of the covers 12. The cover 12 removed can be used to close the end free from the cylindrical part 10 '.
- Module 8 can have, as shown, only two cells additional 14 'connected opposite one another on the cylindrical part 10 '.
- module 8 can be mounted on the free ends of module 8 and the base module 6 in place of the covers 12. It is thus possible to mount in cascade several modules to create a heat treatment installation tailored to the needs of the user.
- module 8 may include rails 20 'which are connected to the rails 20 when the module 8 is mounted on the basic installation.
- the installation may include a loading / unloading cell 15 and a gas quenching cell 16.
- Gas quenching is suitable for large number of materials. To achieve a good compromise between the power required to mix quench gas and diversity materials that can be quenched under gas, we use nitrogen or a mixture containing at least 50% nitrogen.
- FIG. 3 represents a side view in section of a installation of the type of FIG. 1, comprising a oil quenching 30.
- This cell 30 can advantageously replace the load / unload cell 15 in Figures 1 and 2.
- the oil quenching cell 30 then has a door outside 30-1 used to extract and introduce charges 24 in the installation.
- the cell 30 also includes a lift 32 to keep the load at a height adapted to the handling device 18, 22 and to immerse the charge 24 in an oil bath 34.
- This arrangement is advantageous because the operation of quenching being the last, we can directly extract the charge 24 dealt with by removing the travel time of a cell of quenching up to the loading / unloading cell. We avoid also the additional cost of a loading / unloading cell dedicated.
- the oil quenching cell 30 is fitted, like the loading / unloading cell 15, with a watertight door (not shown) intended to isolate it from the enclosure 10 to allow loading / unloading operations at atmospheric pressure without affecting the pressure prevailing in enclosure 10.
- the handling device 18, 22 is moved by conventional means.
- the carriage 18 can move the along the rails 20 thanks to an on-board electric motor provided with a pinion which meshes on a rack arranged parallel to the rails.
- Telescopic fork 22 can be stretched and retracted by a chain or lever system. Raising and lowering of the fork can be obtained by a cam system or to eccentric.
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)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
- Tunnel Furnaces (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Photovoltaic Devices (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
La présente invention concerne une installation de traitement thermique sous atmosphère raréfiée du type comportant plusieurs cellules de traitement reliées à une enceinte commune étanche munie de moyens de manutention pour transférer une charge d'une cellule à l'autre.The present invention relates to an installation of heat treatment in a rarefied atmosphere of the type comprising several treatment cells connected to a common enclosure waterproof fitted with handling means to transfer a load from one cell to another.
La demande de brevet Français 2 537 260 décrit une telle installation de traitement thermique. Les cellules de traitement sont disposées horizontalement et en étoile à l'intérieur d'une enceinte étanche cylindrique à axe vertical. Les cellules sont desservies par un dispositif de manutention central.French patent application 2,537,260 describes a such a heat treatment installation. Treatment cells are arranged horizontally and star-shaped inside a sealed cylindrical enclosure with a vertical axis. Cells are served by a central handling device.
Un inconvénient des installations connues de ce type est que le nombre de cellules de traitement est fixe. Il n'y a aucune possibilité de faire évoluer l'installation pour qu'elle comporte des cellules de traitement supplémentaires.A disadvantage of known installations of this type is that the number of treatment cells is fixed. There is no possibility of upgrading the installation so that it has additional processing cells.
Un autre inconvénient de ces installations est qu'il est particulièrement difficile d'intervenir à l'intérieur de l'enceinte, par exemple pour régler le dispositif de manutention. Une telle intervention nécessite le plus souvent un démontage total ou partiel du dispositif de manutention.Another disadvantage of these installations is that is particularly difficult to intervene inside the enclosure, for example to adjust the handling device. Such intervention most often requires disassembly total or partial handling device.
FR-A-2 487 492 décrit une installation de traitement thermique réalisée par une combinaison d'éléments modulaires comprenant une enceinte métallique revêtue à l'intérieur d'une couche en matériau thermiquement isolant délimitant une volume interne à l'intérieur duquel se trouvent disposés des moyens de transfert et de chauffage ou de refroidissement ; la combinaison des susdits éléments modulaires est disposée à l'intérieur d'une enceinte étanche munie à chacune de ses extremités d'un sas présentant une structure similaire à celle d'un élément modulaire.FR-A-2 487 492 describes a treatment installation thermal effect by a combination of elements modular including a metal enclosure coated with the inside of a layer of thermally material insulation defining an internal volume inside which there are arranged means of transfer and heating or cooling; the combination of said modular elements is arranged inside an enclosure waterproof fitted with an airlock at each of its ends having a structure similar to that of a modular element.
Un objet de la présente invention est de prévoir une installation de traitement thermique enchaíné sous atmosphère raréfiée pouvant recevoir un nombre quelconque de cellules de traitement.An object of the present invention is to provide a heat treatment installation chained under atmosphere rarefied able to receive any number of cells of treatment.
Un autre objet de la présente invention est de prévoir une telle installation qui permette une intervention particulièrement aisée dans l'enceinte.Another object of the present invention is to provide such an installation which allows an intervention particularly easy in the enclosure.
Ces objets sont atteints grâce à une installation de traitement thermique enchaíné sous atmosphère raréfiée comprenant plusieurs cellules de traitement reliées dans un plan horizontal à une enceinte étanche commune munie de moyens de manutention pour transférer une charge d'une cellule à une autre. L'enceinte commune est un cylindre à axe horizontal dont au moins une extrémité est prévue pour recevoir un module sous forme d'un prolongement cylindrique auquel sont reliées des cellules supplémentaires.These objects are achieved thanks to an installation of heat treatment in a rarefied atmosphere including several treatment cells linked in a horizontal plane to a common watertight enclosure provided with handling means to transfer a charge from one cell to another. The enclosure common is a cylinder with horizontal axis of which at least one end is intended to receive a module in the form of a cylindrical extension to which cells are connected additional.
Selon un mode de réalisation de la présente invention, au moins une extrémité du cylindre est munie d'un couvercle amovible à la place duquel peut se monter le module.According to an embodiment of the present invention, at least one end of the cylinder has a cover removable in place of which the module can be mounted.
Selon un mode de réalisation de la présente invention, les moyens de manutention comprennent un chariot se déplaçant parallèlement à l'axe du cylindre et desservant les cellules au moyen d'un élément télescopique.According to an embodiment of the present invention, the handling means include a moving cart parallel to the cylinder axis and serving the cells at by means of a telescopic element.
Selon un mode de réalisation de la présente invention, l'une des cellules est une cellule de trempe à l'huile servant également de cellule de chargement/déchargement.According to an embodiment of the present invention, one of the cells is an oil quenching cell serving also of loading / unloading cell.
Selon un mode de réalisation de la présente invention, le chariot se déplace sur des rails solidaires de l'enceinte, ces rails étant prolongés dans le module par des rails solidaires du module.According to an embodiment of the present invention, the carriage moves on rails integral with the enclosure, these rails being extended in the module by rails integral with the module.
Selon un mode de réalisation de la présente invention, le module est prévu pour être monté par une extrémité sur l'enceinte et par l'autre extrémité sur un autre module.According to an embodiment of the present invention, the module is designed to be mounted at one end on the enclosure and by the other end on another module.
Selon un mode de réalisation de la présente invention, le module est ouvert aux deux extrémités, l'extrémité restant ouverte après le montage du module sur l'enceinte recevant un module supplémentaire ou le couvercle. According to an embodiment of the present invention, the module is open at both ends, the remaining end open after mounting the module on the enclosure receiving a additional module or cover.
Selon un mode de réalisation de la présente invention, l'installation comprend une cellule de trempe sous gaz fonctionnant avec de l'azote ou un mélange comportant au moins 50 % d'azote.According to an embodiment of the present invention, the installation includes a working gas quenching cell with nitrogen or a mixture comprising at least 50% nitrogen.
Ces objets, caractéristiques et avantages, ainsi que
d'autres de la présente invention seront exposés en détail dans
la description suivante de modes de réalisation particuliers
faite à titre non-limitatif en relation avec les figures jointes
parmi lesquelles :
Afin de pouvoir utiliser un nombre quelconque de cellules de traitement dans une installation de traitement thermique enchaíné, la présente invention prévoit une installation modulaire. La modularité est rendue possible grâce à une structure particulière de l'installation.In order to be able to use any number of cells treatment in a thermal treatment installation chained, the present invention provides a modular installation. Modularity is made possible thanks to a structure particular installation.
La figure 1 illustre en trait plein un module de base 6
d'une installation selon l'invention et en pointillés un module
supplémentaire 8.Figure 1 illustrates in solid lines a
Le module de base 6 comprend une enceinte étanche 10
sous forme de cylindre à axe horizontal. Les deux extrémités de
ce cylindre 10, munies de collerettes, sont bouchées par des
couvercles étanches amovibles 12. Les cellules de traitement sont
reliées latéralement au cylindre 10 et se trouvent dans un même
plan horizontal. A titre d'exemple, la figure 1 illustre deux
cellules de traitement thermique 14 disposées l'une en face de
l'autre, une cellule de chargement/déchargement 15, et une
cellule de trempe sous gaz 16 disposée en face de la cellule de
chargement/déchargement 15. The
Comme cela est mieux visible à la figure 2, l'enceinte cylindrique 10 comporte des extensions cylindriques latérales 10-1 munies de collerettes permettant de fixer de manière étanche les cellules de traitement, par exemple à l'aide de boulons.As is best seen in Figure 2, the enclosure cylindrical 10 has lateral cylindrical extensions 10-1 fitted with flanges for sealingly fixing treatment cells, for example using bolts.
De manière classique, les ouvertures de communication
des cellules de traitement thermique 14 avec l'enceinte 10 sont
munies de portes (non représentées) qui sont calorifuges mais non
étanches. En effet, la pression que l'on fait régner dans l'enceinte
10, de l'ordre de 5 millibars, est celle qui doit régner
dans les cellules de traitement 14. Par contre, la cellule de
chargement/déchargement 15 et la cellule de trempe sous gaz 16
sont munies de portes étanches, respectivement 15-1 et 16-1, au
niveau de leurs ouvertures de communication avec l'enceinte 10.
En effet la cellule de chargement/déchargement 15 comporte une
porte extérieure 15-2 destinée à insérer les charges à traiter
dans l'installation. La cellule 15 doit donc pouvoir être mise à
la pression atmosphérique sans perturber l'atmosphère de l'enceinte
10. De même, il règne dans la cellule 16, pendant les
opérations de trempe, une pression supérieure à la pression
atmosphérique.In a conventional manner, the communication openings
Un dispositif de manutention est sous la forme d'un
chariot 18 se déplaçant parallèlement à l'axe du cylindre 10. Ce
chariot 18 se déplace, par exemple, sur des rails 20 s'étendant
sur la longueur du cylindre 10. Le chariot 18 est muni d'une
fourche télescopique 22 qui est susceptible de s'étirer de part
et d'autre du chariot 18 jusqu'au centre de chacune des cellules
14 à 16 pour y prendre et y déposer une charge en cours de
traitement.A handling device is in the form of a
A la figure 1, en trait plein, le chariot 18 se trouve
au niveau des cellules 15 et 16, et la fourche télescopique 22
pénètre dans la cellule 15 pour y prendre une charge 24. Bien
entendu, la cellule 15 a été préalablement mise à la pression de
l'enceinte 10 pour pouvoir ouvrir la porte 15-1. Comme cela est
représenté en figure 2, la charge 24 est posée sur des supports
26 rehaussant la charge 24 par rapport au fond de la cellule et
permettant à la fourche 22 de passer sous la charge. La fourche
22 est levée pour soulever la charge 24 des supports 26, puis
rétractée pour ramener la charge 24 sur le chariot 18. Ensuite,
le chariot 18 se déplace en face de la cellule souhaitée, par
exemple à la position représentée en pointillés. La fourche 22
est alors étirée puis abaissée pour déposer la charge 24 dans la
cellule.In Figure 1, in solid lines, the
Dans l'installation de base de la figure 1 (représentée
en trait plein), les deux cellules 14 sont, par exemple, des
cellules de cémentation, ce qui permettra de traiter deux charges
24 pratiquement en même temps. La seule cellule de trempe 16
suffira car l'opération de trempe est particulièrement rapide par
rapport aux opérations de cémentation.In the basic installation of figure 1 (shown
in solid lines), the two
Si l'on veut augmenter la production de l'installation
ou bien pouvoir effectuer d'autres traitements, tels qu'une
nitruration, il faut des cellules de traitement supplémentaires.
Dans ce cas, on monte sur l'installation de base un module 8
représenté en pointillés à la figure 1. Ce module 8 comporte une
partie cylindrique 10' qui est montée dans le prolongement de
l'enceinte cylindrique 10 à la place de l'un des couvercles 12.
Le couvercle 12 retiré pourra être utilisé pour fermer l'extrémité
libre de la partie cylindrique 10'. Le module 8 pourra
comporter, comme cela est représenté, seulement deux cellules
supplémentaires 14' reliées l'une en face de l'autre sur la
partie cylindrique 10'.If we want to increase the production of the installation
or be able to perform other treatments, such as
nitriding requires additional treatment cells.
In this case, a module 8 is mounted on the basic installation
shown in dotted lines in FIG. 1. This module 8 includes a
cylindrical part 10 'which is mounted in the extension of
the
Bien entendu, des modules supplémentaires peuvent être
montés sur les extrémités libres du module 8 et du module de base
6 à la place des couvercles 12. On peut ainsi monter en cascade
plusieurs modules pour créer une installation de traitement thermique
adaptée aux besoins de l'utilisateur.Of course, additional modules can be
mounted on the free ends of module 8 and the
Dans le cas où le chariot 18 est monté sur des rails
20, comme cela est représenté, le module 8 pourra comporter des
rails 20' qui viennent se raccorder aux rails 20 lorsque le
module 8 est monté sur l'installation de base. In the case where the
Afin d'intervenir dans l'enceinte 10 ou 10', il suffit
de retirer l'un des couvercles 12, ou bien les deux couvercles,
ce qui ouvre un couloir permettant à une personne de pénétrer
dans l'installation et d'effectuer aisément les opérations nécessaires
sur le dispositif de manutention 18, 22 et sur les cellules.
En cas de besoin, le dispositif de manutention est déplacé
d'un côté ou de l'autre de l'enceinte.In order to intervene in the 10 or 10 'enclosure, it suffices
to remove one of the
Comme cela est représenté en figure 2, l'installation
peut comporter une cellule de chargement/déchargement 15 et une
cellule 16 de trempe sous gaz. La trempe sous gaz convient à un
grand nombre de matériaux. Pour obtenir un bon compromis entre la
puissance nécessaire pour brasser le gaz de trempe et la diversité
des matériaux que l'on peut tremper sous gaz, on utilise de
l'azote ou un mélange contenant au moins 50% d'azote.As shown in Figure 2, the installation
may include a loading / unloading
Malgré cela, certains matériaux nécessitent une trempe à l'huile.Despite this, some materials require quenching in oil.
La figure 3 représente une vue de côté en coupe d'une
installation du type de la figure 1, comportant une cellule de
trempe à l'huile 30. Cette cellule 30 peut avantageusement
remplacer la cellule de chargement/déchargement 15 des figures 1
et 2. La cellule de trempe à l'huile 30 comporte alors une porte
extérieure 30-1 servant à extraire et introduire les charges 24
dans l'installation. La cellule 30 comporte par ailleurs un
ascenseur 32 permettant de maintenir la charge à une hauteur
adaptée au dispositif de manutention 18, 22 et d'immerger la
charge 24 dans un bain d'huile 34.FIG. 3 represents a side view in section of a
installation of the type of FIG. 1, comprising a
oil quenching 30. This cell 30 can advantageously
replace the load / unload
Cette disposition est avantageuse car, l'opération de
trempe étant la dernière, on peut directement extraire la charge
24 traitée en supprimant le temps de voyage d'une cellule de
trempe jusqu'à la cellule de chargement/déchargement. On évite
également le surcoût d'une cellule de chargement/déchargement
dédiée.This arrangement is advantageous because the operation of
quenching being the last, we can directly extract the
Bien entendu, la cellule de trempe à l'huile 30 est
munie, comme la cellule de chargement/déchargement 15, d'une
porte étanche (non représentée) destinée à l'isoler de l'enceinte
10 pour permettre les opérations de chargement/déchargement à
pression atmosphérique sans affecter la pression régnant dans
l'enceinte 10.Of course, the oil quenching cell 30 is
fitted, like the loading / unloading
Le dispositif de manutention 18, 22 est mu par des
moyens classiques. Par exemple, le chariot 18 peut se déplacer le
long des rails 20 grâce à un moteur électrique embarqué muni d'un
pignon qui engrène sur une crémaillère disposée parallèlement aux
rails. La fourche télescopique 22 peut être étirée et rétractée
par un système à chaíne ou à leviers. L'élévation et l'abaissement
de la fourche peuvent être obtenus par un système à came ou
à excentrique.The handling
Claims (8)
- A chained thermal processing installation under rarefied atmosphere including several processing cells (14, 15, 16) linked in a horizontal plane to a common air-tight chamber provided with handling means (18, 22) for transferring a load (24) from one cell to another, characterized in that the common chamber is a cylinder with a horizontal axis (10), at least one end of which is arranged to receive a module (8) in the form of a cylindrical extension (10') to which additional cells (14') are connected.
- The thermal processing installation of claim 1, characterized in that at least one end of the cylinder is provided with a removable cover (12) in place of which the module can be mounted (8).
- The thermal processing installation of claim 1, characterized in that the handling means include a carriage (18) moving in a direction parallel to the cylinder axis (10) and servicing the cells by means of a telescopic element (22).
- The thermal processing installation of claim 1, characterized in that one of the cells is an oil quenching cell (30) also used as a loading/unloading cell.
- The thermal processing installation of claim 1, characterized in that the carriage (18) moves on rails (20) attached to the chamber (10), these rails being prolonged in the module (8) by rails (20') attached to the module.
- The thermal processing installation of claim 1, characterized in that the module (8) is provided to be assembled by one end to the chamber (10) and by the other end to another module.
- The thermal processing installation of claim 2, characterized in that the module (8) is open at both ends, the end which remains open after assembly of the module to the chamber (10) receiving an additional module or the cover (12).
- The thermal processing installation of claim 1, characterized in that it includes a gas quenching cell (16) operating with nitrogen or a mixture comprising at least 50% of nitrogen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9715506 | 1997-12-02 | ||
FR9715506A FR2771754B1 (en) | 1997-12-02 | 1997-12-02 | MODULAR VACUUM HEAT TREATMENT PLANT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0922778A1 EP0922778A1 (en) | 1999-06-16 |
EP0922778B1 true EP0922778B1 (en) | 2002-08-21 |
Family
ID=9514321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98410138A Expired - Lifetime EP0922778B1 (en) | 1997-12-02 | 1998-12-02 | Modular device for the vacuum heat treatment |
Country Status (9)
Country | Link |
---|---|
US (1) | US6065964A (en) |
EP (1) | EP0922778B1 (en) |
JP (1) | JPH11237185A (en) |
KR (1) | KR100602225B1 (en) |
AT (1) | ATE222608T1 (en) |
CA (1) | CA2255343C (en) |
DE (1) | DE69807305T2 (en) |
ES (1) | ES2181148T3 (en) |
FR (1) | FR2771754B1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2801059B1 (en) * | 1999-11-17 | 2002-01-25 | Etudes Const Mecaniques | LOW PRESSURE CEMENTING QUENCHING PROCESS |
FR2809746B1 (en) | 2000-06-06 | 2003-03-21 | Etudes Const Mecaniques | GAS-HEATED CEMENTATION SYSTEM |
EP1193317B1 (en) * | 2000-09-27 | 2004-07-28 | Patherm SA | Installation for the heat treatment of metallic article loads |
ES2285597T3 (en) | 2001-01-26 | 2007-11-16 | Ipsen International Gmbh | DEVICE AND PROCEDURE FOR TRANSPORTING METAL PARTS AND INSTALLATION FOR HEAT TREATMENT OF METAL PARTS. |
DE10118244C1 (en) * | 2001-04-11 | 2002-08-22 | Ald Vacuum Techn Ag | Modular device for quench hardening workpieces |
JP2003183728A (en) | 2001-12-14 | 2003-07-03 | Jh Corp | Vacuum heat-treatment apparatus |
US6902635B2 (en) * | 2001-12-26 | 2005-06-07 | Nitrex Metal Inc. | Multi-cell thermal processing unit |
US6627856B2 (en) | 2001-12-26 | 2003-09-30 | Nitrex Metal Inc. | Moveable heat exchanger |
DE10359458B4 (en) * | 2003-12-17 | 2009-09-24 | Ald Vacuum Technologies Gmbh | Device for the chained heat treatment of workpieces under negative pressure |
FR2864106B1 (en) * | 2003-12-23 | 2006-08-11 | Etudes Const Mecaniques | TEMPERATURE DEVICE |
EP2541179A3 (en) * | 2005-11-23 | 2014-09-24 | Surface Combustion, Inc. | Gas generator for an atmospheric furnace for treating one or more articles |
JP6403959B2 (en) * | 2014-03-06 | 2018-10-10 | Dowaサーモテック株式会社 | Carburizing and quenching equipment |
CN110453060A (en) * | 2019-09-11 | 2019-11-15 | 东莞市升华炉具设备有限公司 | Homogenizer |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE243050C (en) * | ||||
FR2487492B1 (en) * | 1980-07-25 | 1987-07-17 | Bmi | OVEN FOR CONTINUOUS THERMAL OR THERMOCHEMICAL TREATMENT OF METALS |
JPS57137417A (en) * | 1981-02-17 | 1982-08-25 | Michio Sugiyama | Semicontinuous vacuum heat treatment furnace and operating method |
FR2537260B3 (en) * | 1982-12-02 | 1985-11-22 | Traitement Sous Vide | MULTICELLULAR OVEN FOR THE THERMAL, THERMOCHEMICAL OR ELECTROTHERMAL TREATMENT OF METALS UNDER RAREFIED ATMOSPHERE |
US5259881A (en) * | 1991-05-17 | 1993-11-09 | Materials Research Corporation | Wafer processing cluster tool batch preheating and degassing apparatus |
DD243050A1 (en) * | 1985-11-27 | 1987-02-18 | Hochvakuum Dresden Veb | RECIPIENT FOR VACUUM PLANTS |
FR2594102B1 (en) * | 1986-02-12 | 1991-04-19 | Stein Heurtey | AUTOMATED FLEXIBLE INSTALLATION FOR FAST THERMOCHEMICAL TREATMENT |
JPS63148088A (en) * | 1986-07-17 | 1988-06-20 | 大亜真空株式会社 | Continuous type vacuum heat treating furnace |
KR890001020A (en) * | 1987-06-30 | 1989-03-17 | 송진황 | Electronic music equipment |
FR2634496B1 (en) * | 1988-07-25 | 1992-06-19 | Centre Nat Rech Scient | POLYSACCHARIDES, PROCESS FOR THEIR PREPARATION BY CULTURE OF PSEUDOMONAS PAUCIMOBILIS AND APPLICATION OF STRAINS IN AGRICULTURE |
US5076205A (en) * | 1989-01-06 | 1991-12-31 | General Signal Corporation | Modular vapor processor system |
FR2644567A1 (en) * | 1989-03-17 | 1990-09-21 | Etudes Const Mecaniques | DEVICE FOR EXECUTING HEAT TREATMENTS CONTINUOUS IN VACUUM CONTINUOUS |
DE3934103A1 (en) * | 1989-10-12 | 1991-04-25 | Ipsen Ind Int Gmbh | OVEN FOR PARTIAL HEAT TREATMENT OF TOOLS |
JPH04309786A (en) * | 1991-04-09 | 1992-11-02 | Tokai Konetsu Kogyo Co Ltd | Vacuum continuous heat treating furnace |
JP3118612B2 (en) * | 1991-09-30 | 2000-12-18 | 株式会社トウネツ | Heat treatment equipment |
JP3289949B2 (en) * | 1992-04-27 | 2002-06-10 | パーカー熱処理工業株式会社 | Closed circulation gas quenching device and gas quenching method |
JP3781787B2 (en) * | 1993-10-26 | 2006-05-31 | 株式会社半導体エネルギー研究所 | Multipurpose substrate processing apparatus, operation method thereof, and manufacturing method of thin film integrated circuit |
FR2719893B1 (en) * | 1994-05-13 | 1996-08-02 | Europ Propulsion | Automatic space oven loading device. |
DE4442903A1 (en) * | 1994-12-02 | 1996-06-05 | Hans Ruediger Dr Ing Hoffmann | Vacuum oven plant with vertical pressurised gas quenching chamber |
JP3490791B2 (en) * | 1994-12-20 | 2004-01-26 | 光洋サーモシステム株式会社 | Multi-chamber heat treatment furnace |
-
1997
- 1997-12-02 FR FR9715506A patent/FR2771754B1/en not_active Expired - Fee Related
-
1998
- 1998-12-01 CA CA002255343A patent/CA2255343C/en not_active Expired - Fee Related
- 1998-12-01 JP JP10355460A patent/JPH11237185A/en active Pending
- 1998-12-02 AT AT98410138T patent/ATE222608T1/en active
- 1998-12-02 KR KR1019980052494A patent/KR100602225B1/en not_active IP Right Cessation
- 1998-12-02 US US09/204,379 patent/US6065964A/en not_active Expired - Lifetime
- 1998-12-02 EP EP98410138A patent/EP0922778B1/en not_active Expired - Lifetime
- 1998-12-02 DE DE69807305T patent/DE69807305T2/en not_active Expired - Lifetime
- 1998-12-02 ES ES98410138T patent/ES2181148T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2255343C (en) | 2006-10-17 |
US6065964A (en) | 2000-05-23 |
KR19990062712A (en) | 1999-07-26 |
EP0922778A1 (en) | 1999-06-16 |
CA2255343A1 (en) | 1999-06-02 |
ATE222608T1 (en) | 2002-09-15 |
FR2771754B1 (en) | 2000-02-11 |
DE69807305T2 (en) | 2003-04-17 |
DE69807305D1 (en) | 2002-09-26 |
ES2181148T3 (en) | 2003-02-16 |
FR2771754A1 (en) | 1999-06-04 |
JPH11237185A (en) | 1999-08-31 |
KR100602225B1 (en) | 2006-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0922778B1 (en) | Modular device for the vacuum heat treatment | |
CA2712531C (en) | Manipulator for lifting the conductors of a live electric line from a first pole to a second pole | |
CA2493988C (en) | Installation for the vacuum treatment notably of substrates | |
FR2560172A1 (en) | PALLET LOADING APPARATUS | |
EP0252811A1 (en) | Mobile sanitary unit and road transport unit therefor | |
EP0518795A1 (en) | Universal multipurpose container of maximal capacity | |
FR2697004A1 (en) | System for storing and transporting flat objects such as extra-flat boxes and its portable rack. | |
BE1003742A6 (en) | Apparatus and method for the manufacture of fencing. | |
FR2940261A1 (en) | Lifting truck i.e. slight raising lifting truck, for lifting and transporting e.g. meshed case, has electric screw mechanism with screw that is cooperated with driving part and mobile nut that is cooperated with loading part by fixing pin | |
EP3860398A1 (en) | Ergonomic storage unit | |
FR2919659A1 (en) | Construction installation for lift-up garage door, has chamber allowing extended positioning of lintel, reception of motor unit formed by reversible moto-reducer, and insertion of transmission control unit to allow lifting of apron of door | |
EP2221229B1 (en) | Transporting device for a folded tent or other voluminous similar item | |
FR2658496A1 (en) | TRANSTOCKEER AND CHARGE STORAGE SYSTEM USING SAME. | |
FR2893569A1 (en) | Logistics box fixing device for wall of e.g. armored car, has positioning and locking units to position and lock logistics box with respect to car, respectively, where locking unit has support surface against which wall of box is supported | |
EP3715208B1 (en) | Box of an auxiliary converter for a railway vehicle and corresponding auxiliary converter | |
FR2782156A1 (en) | Charge feed for vacuum hardening furnace has connecting chamber with access door selectively sealed with one oven | |
EP0043328B1 (en) | Energy production installation comprising several fast neutron breeder nuclear reactors and an apparatus for charging and discharging fuel elements | |
FR2724920A1 (en) | Swingletree for handling of heavy aircraft engines | |
EP4051535A1 (en) | Motor vehicle provided with storage boxes | |
EP0187598B1 (en) | Furnace for bending glass sheets | |
FR2862841A1 (en) | Electrified fence accessing device for vehicle, has electrified wire tightened between two elongated units using electrically insulating hooks which move independently with respect to units, and maintained at preset distance from ground | |
FR2579810A1 (en) | Advertising delivery vehicle | |
FR2870208A1 (en) | Luggage transferring installation for air terminal, has loading/unloading device to connect cargo compartment and trolley and to transfer luggage by rolling luggage rows perpendicular to their longitudinal axis, between device and trolley | |
FR2733727A1 (en) | UTILITY VEHICLE INCLUDING A COVER WITH A MOBILE RANCHER | |
EP4238822A1 (en) | Road or rail transport vehicle |
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 ES FR GB IT LI SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 19991120 |
|
AKX | Designation fees paid |
Free format text: AT BE CH DE ES FR GB IT LI SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20010522 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB IT LI SE |
|
REF | Corresponds to: |
Ref document number: 222608 Country of ref document: AT Date of ref document: 20020915 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69807305 Country of ref document: DE Date of ref document: 20020926 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: MOINAS & SAVOYE SA |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20021202 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2181148 Country of ref document: ES Kind code of ref document: T3 |
|
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 |
Effective date: 20030522 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: GC |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PVP |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20111215 Year of fee payment: 14 Ref country code: ES Payment date: 20111222 Year of fee payment: 14 Ref country code: CH Payment date: 20111214 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20111230 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120123 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Owner name: ECM TECHNOLOGIES, FR Effective date: 20120531 Ref country code: FR Ref legal event code: CA Effective date: 20120531 |
|
BERE | Be: lapsed |
Owner name: *ETUDES ET *CONSTRUCTIONS MECANIQUES Effective date: 20121231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121203 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20121202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121231 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121231 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20121202 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20140307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121203 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 19 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20171221 Year of fee payment: 20 Ref country code: DE Payment date: 20171212 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: 20171213 Year of fee payment: 20 Ref country code: AT Payment date: 20171122 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69807305 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 222608 Country of ref document: AT Kind code of ref document: T Effective date: 20181202 |