FR2537260A1 - Multicellular oven for heat treatment, thermochemical treatment or electrothermal treatment of metals in a rarified atmosphere - Google Patents
Multicellular oven for heat treatment, thermochemical treatment or electrothermal treatment of metals in a rarified atmosphere Download PDFInfo
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- FR2537260A1 FR2537260A1 FR8220213A FR8220213A FR2537260A1 FR 2537260 A1 FR2537260 A1 FR 2537260A1 FR 8220213 A FR8220213 A FR 8220213A FR 8220213 A FR8220213 A FR 8220213A FR 2537260 A1 FR2537260 A1 FR 2537260A1
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Classifications
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- 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
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- 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
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- 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
- F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
- F27B19/02—Combinations of furnaces of kinds not covered by a single preceding main group combined in one structure
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- 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
- F27B9/028—Multi-chamber type furnaces
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- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
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- 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
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- 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
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
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- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0046—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising one or more movable arms, e.g. forks
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- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/008—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising cross-beams or gantry cranes
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- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/007—Cooling of charges therein
- F27D2009/0089—Quenching
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- 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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Four multicellulaire pour le traitement thermique. thermochimique ou électrothemique de métaux sous atmosphère raréflée.Multicellular oven for heat treatment. thermochemical or electrothemic of metals under rarefied atmosphere.
a présente invention concerne un four multicellu- laire pour le traitement thermique, thermochimique ou électrothermique de métaux sous atmosphère raréfiée. The present invention relates to a multicellular oven for the thermal, thermochemical or electrothermal treatment of metals in a rarefied atmosphere.
Elle s'applique plus particulièrement au traitement thermique ou thermochimique de métaux, éventuellement par bombardement ionique, comprenant 9 en fin de cycle de traitement, un traitement final, de durée limitée, tel qu'une trempe0
On sait qu'il existe déjà de nombreux types de fours de traitement thermique ou thermochimique sous vide, à bac de trempe incorporé.Ces fours comprenent en général une cellule équipée de moyens de chauffage et éventuellement de refroidissement pour le traitement thermique ou thermochimique. ainsi qu'un équipement de trempe faisant intervenir une chambre munie d'un bac de trempe et communiquant avec la cellule de traitement par l'intermédiaire d'une cloison amovible et étanche, des moyens étant on outre prévus pour effectuer le transfert des pie ces de la cellule au bac de trempe et inversement.It applies more particularly to the thermal or thermochemical treatment of metals, optionally by ion bombardment, comprising 9 at the end of the treatment cycle, a final treatment, of limited duration, such as quenching
It is known that there are already many types of heat or thermochemical vacuum treatment ovens, with incorporated quenching pan. These ovens generally comprise a cell equipped with heating and possibly cooling means for thermal or thermochemical treatment. as well as a quenching equipment involving a chamber provided with a quenching tank and communicating with the treatment cell by means of a removable and watertight partition, means being further provided for carrying out the transfer of the parts. from the cell to the quench tank and vice versa.
L'inconvénient de ces types de fours réside alors dans la sous-utilisation de 1 équipement de trempe, due au fait que la durée de la trempe est généralement négligeable par rapport à la durée du traitement propre ment dit En conséquence, la rentabilité de l'ensemble de l'installation se trouve altérée et le coût du traitement se trouve relativement élevé. The disadvantage of these types of ovens then lies in the underuse of 1 quenching equipment, due to the fact that the duration of the quenching is generally negligible compared to the duration of the treatment proper. Consequently, the profitability of the The entire installation is damaged and the cost of treatment is relatively high.
L'invention a donc pour but de supprimer ces incon- vénients. Elle propose un four multicellulaire à bac de trempe incorporé, dans lequel le bac de trempe se trouve alimente en pie ces traitées dans les différentes cellules. Ainsi, le temps d'utilisation de l'installation de trempe peut outre multiplié par le nombre de cellules de traitement et sa rentabilité s'en trouve accrue d'au tant. The object of the invention is therefore to eliminate these drawbacks. It offers a multicellular oven with incorporated quenching tank, in which the quenching tank is supplied with pie, these treated in the different cells. Thus, the time of use of the quenching plant can also be multiplied by the number of treatment cells and its profitability is thereby increased.
D'une façon plus précise, le four multicellulaire selon invention se compose d'une enceinte métallique etanche, de préférence, à double parois, à l'intérieur de laquelle se trouvent disposées radialement une plu ral.té de cellules de traitement débouchant par des portes escamotables sur un volume central libre servant de zone d'évolution d'un automate destiné à la manutention des pièces à traitere
Ce four comprend en outre, de préférence à l'ex- térieur de l'enceinte une chambre équipée d'un bac de trempe et communiquant avec le volume interne de l'enceinte par l'intermédiaire d'une porte ou cloison mobile étanche.Cette chambre peut également faire office de sas et comprendre en plus, une porte donnant acces à l'extérieur, de manière à permettre la sortie et éventuellement l'entrée des pièces à traiter.More precisely, the multicellular oven according to the invention consists of a sealed metal enclosure, preferably with double walls, inside which are located radially a plurality of treatment cells opening out through retractable doors on a free central volume serving as an evolution area for an automatic machine intended for handling milking parts
This oven further comprises, preferably outside the enclosure, a chamber equipped with a quenching tank and communicating with the internal volume of the enclosure via a sealed mobile door or partition. This room can also act as an airlock and also include a door giving access to the outside, so as to allow the exit and possibly the entry of the parts to be treated.
Pour éviter le refroidissement des pièces au cours de leur transfert des cellules de traitement jusqu'au bac de trempe, la susdite chambre peut directement 00,,'- muniquer avec le volume interne de l'une des cellules de traitement qui pourra alors éventuellement servir pour le maintien en température des pièces. To avoid cooling of the parts during their transfer from the treatment cells to the quenching tank, the aforesaid chamber can directly 00 ,, '- provide with the internal volume of one of the treatment cells which can then possibly be used for maintaining the temperature of the rooms.
Par ailleursm l'enceinte peut en outre être équipée d'un sas permettant l'introduction ou la sortie des pièces à traiter, ce sas comprenant une porte extérieure et une porte intérieure donnant accès à l'intérieur de l'encein te, à la périphérie de la zone d'évolution de l'automate. Furthermore, the enclosure can also be equipped with an airlock allowing the entry or exit of the parts to be treated, this airlock comprising an external door and an internal door giving access to the interior of the enclosure, to the periphery of the PLC evolution area.
De préférence le volume de débattement de l'auto- mate se se trouve inscrit dans un cylindre à axe vertical
Dans ce cas les cellules de traitement se trouvent disposées radialement, en étoile, avec leur orifice d'accès situe tangentiellement par rapport audit volume.Preferably the displacement volume of the automaton is located in a cylinder with vertical axis
In this case, the treatment cells are arranged radially, in a star, with their access orifice situated tangentially relative to said volume.
Dans ce cas l'automate peut comprendre d'une part, un chemin de roulement monté rotatif sur la paroi supérieure du four au moyen d'un arbre d'entraînement coaxial au volume de débattement, cet arbre pouvant être entraîné en rotation et en translation axiale gràce à des servocommandes appropriées et, d'autre part, une fourche de manutention,par exemple en équerre,mobile sur le chemin de roulement grâce-à un dispositif d'entraîne- ment servocommandé. In this case, the automaton can comprise, on the one hand, a raceway rotatably mounted on the upper wall of the furnace by means of a drive shaft coaxial with the clearance volume, this shaft being able to be driven in rotation and in translation axial thanks to appropriate servo-controls and, on the other hand, a handling fork, for example at an angle, mobile on the raceway thanks to a servo-driven drive device.
De préférence la partie de la paroi sur laquelle se trouve monté l'automate est amovible et constitue une trappe (trou d'homme) par laquelle on peut accéder à l'intérieur du four notamment en vue d'effectuer sa main tenance. Preferably, the part of the wall on which the automaton is mounted is removable and constitutes a hatch (manhole) through which one can access the interior of the furnace, in particular in order to carry out his hand tenance.
Bien entendu, chacune des cellules de traitement. Of course, each of the processing cells.
peut posséder ses propres moyens de traitement. Elle peut notamment comprendre:
- des moyens de chauffage principaux ou annexes tels que par exemple des résistances électriques,
- des moyens de refroidissement pouvant éventuellement être intégrés aux moyens de chaut'fage
- des électrodes permettant d'effectuer tous types de traitements par bombardement ionique tels que la ni- truration, la carbonitruration, la boruration, les diverses cémentations, les dép8ts métalliques etc....may have its own processing facilities. It can notably include:
- main or additional heating means such as for example electrical resistances,
- cooling means which can optionally be integrated into the heating means
- electrodes allowing all types of ion bombardment treatments to be carried out, such as nitriding, carbonitriding, boriding, various cementations, metallic deposits, etc.
- des moyens permettant de contrer l'atmosphère de traitement à l'intérieur de la cellule (réalisation de vide, injection de gaz de traitement, régulation de température), etc
Par ailleurs, chacune de ces cellules comporte ses propres moyens d'isolation thermique pour faire en en sorte qu(à l'intérieur de l'enceinte, dans les parties exterieures aux cellules, la température ne puisse pas s'élever au delà d'un niveau déterminé, à partir duquel l'emploi d'un automate deviendrait impossible.- means to counter the treatment atmosphere inside the cell (creation of vacuum, injection of treatment gas, temperature regulation), etc.
In addition, each of these cells has its own thermal insulation means to ensure that (inside the enclosure, in the parts outside the cells, the temperature cannot rise above a determined level, from which the use of an automaton would become impossible.
On notera en outre que la chambre comprenant le bac de trempe peut être équipée d'un système autonome de refroidissement de telle manière que la sortie des pièces en fin de traitement puisse s'effectuer dans les meilleures conditions, sans émission excessive de chaleur. It will also be noted that the chamber comprising the quenching tank can be equipped with an independent cooling system so that the parts leaving the end of treatment can be carried out under the best conditions, without excessive emission of heat.
Un mode de réalisation de l'invention sera décrit ci-après, à titre exemple non limitatif, avec reférence aux dessins annexés dans lesquels:
La figure 1 est une coupe schématique, dans un plan médian horizontal d'un four multicellulaire selon l'invention;
La figure 2 est une coupe verticale schématique selon A-B de la figure 1
La figure 3 est une vue de face schématique partiellement en coupe, côté chambre de trempeS cette vue mettant en relief le circuit de refroidissement de la chambre de trempe;
La figure 4 est un schéma théorique simplifié du circuit de contrQle de pression.An embodiment of the invention will be described below, by way of nonlimiting example, with reference to the appended drawings in which:
Figure 1 is a schematic section, in a horizontal median plane of a multicellular oven according to the invention;
Figure 2 is a schematic vertical section along AB of Figure 1
Figure 3 is a schematic front view partially in section, quenching chamber side This view showing the cooling circuit of the quenching chamber;
Figure 4 is a simplified theoretical diagram of the pressure control circuit.
Sur ces dessins, le four comprend tout d'abord une enceinte métallique étanche 1 de préférence à double parois,avec circulation de liquide de refroidis- sement entre les deux parois. Cette enceinte présente sensiblement la forme d'un ellipsoïde de révolution à axe de symétrie (petit axe) vertical. In these drawings, the oven firstly comprises a sealed metallic enclosure 1 preferably with double walls, with circulation of coolant between the two walls. This enclosure has substantially the shape of an ellipsoid of revolution with a vertical axis of symmetry (minor axis).
Le volume intérieur de ce four peut etre virtuelle- ment divisé en deux zones, à savoir, une zone centrale cylindrique 2 qui sert de zone de débattement d'un au tomate de manutention et une zone annulaire périphérique dans laquelle se trouvent radialement disposés, en étoile, quatre cellules de traitement 5 6, 79 8 et un sas 9 d'entrée des pièces à l'intérieur de l'enceinte 1. The internal volume of this furnace can be virtually divided into two zones, namely, a central cylindrical zone 2 which serves as a deflection zone for a handling tomato and a peripheral annular zone in which are located radially, in star, four treatment cells 5 6, 79 8 and an airlock 9 for entering the rooms inside the enclosure 1.
Chacune des cellules de traitement 5, 6, 7, 8 consiste en une chambre par exemple cylindrique ou parallélépipedique délimitée par des parois épaisses en matériau thermiquement isolant. Elle présente une ouverture donnant accès tangentiellement à la zone centrale cylindrique 2, cette ouverture pouvant être obture au moyen de portes thermiquementisolantes 10, 11, 12, 13, montées coulissantes le long de guides verticaux et pouvant être actionnées au moyen d'un moteur 142. Each of the treatment cells 5, 6, 7, 8 consists of a chamber, for example cylindrical or parallelepipedal delimited by thick walls made of thermally insulating material. It has an opening giving tangential access to the central cylindrical zone 2, this opening being able to be closed by means of thermally insulating doors 10, 11, 12, 13, mounted sliding along vertical guides and being able to be actuated by means of a motor 142 .
Ces cellules de traitement 5, 6, ,-, 8, sont équipées de tous les moyens nécessaires pour effectuer le traitement proprement dit, tels que des moyens de chauffage, de refroidissement, des électrodes permettant un traitement par bombardement ionique, des moyens d'injection de gaz de traitement des moyens de contrôle de la tem pérature etc... These treatment cells 5, 6,, -, 8, are equipped with all the means necessary for carrying out the treatment proper, such as heating and cooling means, electrodes allowing treatment by ion bombardment, means for injection of treatment gas, temperature control means, etc.
L'une des cellules de traitement, (dans exemple représenté la cellule 8) comprend, au niveau de son fond, une ouerture qui correspond avec une ouverture de l'enceinte X et communique par l'intermédiaire d'une cloison étanche 14 mobile verticalement avec la chambre d'entrée 15 d'une installation de trempe montée à l'extérieur de l'enceinte 1. One of the treatment cells (in example shown cell 8) comprises, at its bottom, an opening which corresponds with an opening of the enclosure X and communicates by means of a watertight partition 14 movable vertically with the inlet chamber 15 of a quenching installation mounted outside the enclosure 1.
Cette installation de trempe comprend9 en dessous de la chambre d'entrée 15,un bac de trempe 16 ainsi que des moyens de transfert permettant de plonger les pièces déposées dans la chambre d'entrée dans le bac de trempe 16. La chambre d'entrée 15 communique également à l'er térieur au moyen d'une porte étenche 17 de sorte que l'ensemble de l'installation de trempe fait également office de sas notamment pour la sortie des pièces une fois traitées0
Le refroidissement de l'installation de trempe peut être assuré au moyen d'un circuit de circulation d'air (figure 3) faisant intervenir une ou plusieurs turbines 18 entraînées par un moteur 19 et un ou plusieurs échangeurs 20.This quenching installation comprises9 below the inlet chamber 15, a quenching tank 16 as well as transfer means making it possible to immerse the parts deposited in the inlet chamber in the quenching tank 16. The inlet chamber 15 also communicates with the exterior by means of a sealed door 17 so that the entire quenching installation also acts as an airlock, in particular for the exit of the parts once they have been treated.
The cooling of the quenching installation can be ensured by means of an air circulation circuit (FIG. 3) involving one or more turbines 18 driven by a motor 19 and one or more exchangers 20.
Le sas 9 servant à l'accès et/ou éventuellement à la sertie des pièces comprend une chambre étanche 21 disposée radialement à l'intérieur de l'enceinte 1 selon une disposition analogue à celle des cellules de traitement 5, 6, 7, 8. Ce sas 9 communique à l'extérieur grâce à une ouverture ménagée dans l'enceinte 1 et obturable par une porte étauche 28 de type classique. Il communique, de l'autre côté, avec le volume de débattement 2 par l'intermédiaire d'une porte étanche 23 mobile dans un plan vertical. The airlock 9 used for access and / or optionally for setting the pieces comprises a sealed chamber 21 disposed radially inside the enclosure 1 according to an arrangement similar to that of the treatment cells 5, 6, 7, 8 This airlock 9 communicates with the outside by means of an opening made in the enclosure 1 and which can be closed off by a conventional type door 28. It communicates, on the other side, with the clearance volume 2 via a sealed door 23 movable in a vertical plane.
Comme précédemment mentionne, 19automate de manuten- tion des pièces à 19intérieur de 1 ' enceinte se compose d'un chemin de roulement horizontal 24 monté rotatif sur la paroi supérieure de l'enceinte 1, au moyen d'un arbre dtentralnement 25 coaxial au volume de débattement et entraîne en rotation au moyen d'un moteur 26 disposé à 1 extérieur de l'enceinte 1 Cet arbre peut en outre être entraîné en translation verticale, par exemple au moyen d'un système à vis entraîné par un deuxième moteur 27, également situé à l'extérieur de l'enoeinte 1.Sur ce chemin de roulement 24 est monté un chariot 28 actionné par l'intermédiaire d'un moteur 29 et d'un dispositif de transmission approprié. Ce chariot 28 supporte une fourche de manutention 30 en équerre, d'un type couramment utilise dans le cas de charges palet- tisées. As previously mentioned, the automatic parts handling machine inside the enclosure consists of a horizontal raceway 24 rotatably mounted on the upper wall of the enclosure 1, by means of a central shaft 25 coaxial with the volume of movement and drives in rotation by means of a motor 26 disposed 1 outside the enclosure 1 This shaft can also be driven in vertical translation, for example by means of a screw system driven by a second motor 27, also located outside the enclosure 1. On this raceway 24 is mounted a carriage 28 actuated by means of a motor 29 and an appropriate transmission device. This carriage 28 supports a handling fork 30 at an angle, of a type commonly used in the case of palletized loads.
La partie 31 de la paroi supérieure de l'enceinte 1, sur laquelle se trouve monté l'automate, est amovible et constitue une trappe (trou d'homme) par laquelle on peut accéde à l'intérieur du four, notamment en vue d'assurer sa maintenance. The part 31 of the upper wall of the enclosure 1, on which the automaton is mounted, is removable and constitutes a hatch (manhole) through which one can access the interior of the oven, in particular for '' maintain it.
lien entendu le four précédemment décrit est équipé, à l'image des fours de traitement thermique à atmosphère raréfiée, d'une installation de pompage 32 permettant de réaliser, à 19intérieur de l'enceinte 1, un vide relatif De préférence, cette installation de pompage est reliée, comme représenté figure 4, d'un part, au volume intenrne de l'enceinte 1, et, d'autre part, au volume interne des cellules de traitement 3, 6, 7. On évite ainsi toute différence de pression cellules/enceinte pouvant nuire notamment au bon fonctionnement des cloisons mobiles 10, 119 12, obturant les cellules 5 6, 7 en cours de traitement. link understood the oven described above is equipped, like heat treatment furnaces with rarefied atmosphere, with a pumping installation 32 making it possible to produce, inside the enclosure 1, a relative vacuum Preferably, this installation of pumping is connected, as shown in Figure 4, on the one hand, to the internal volume of the enclosure 1, and, on the other hand, to the internal volume of the treatment cells 3, 6, 7. This thus avoids any pressure difference cells / enclosure that can adversely affect the proper functioning of the movable partitions 10, 119 12, closing the cells 5 6, 7 during treatment.
Par ailleurs, le sas 9 et la chambre d'entrée 13 de l'installation de trempe sont raccordés à une ins- tallation de pompage 34 séparée qui permet de réaliser la séquence de fonctionnement classique d'un sas0
On notera enfin que la commande du four peut s'effectuer au moyen d'une unité de commande qui pilote tous les organes du four (automate, portes étanches, cloisons mobiles, installations de pompage, injection de gaz de traitement, moyens de traitement) et ce, en fonction de données introduites en mémoire et se rappor- tant à la nature des pièces et à la nature du traitement que l'on désire réaliser.Furthermore, the airlock 9 and the inlet chamber 13 of the quenching installation are connected to a separate pumping installation 34 which makes it possible to carry out the conventional operating sequence of an airlock.
Finally, it should be noted that the control of the oven can be carried out by means of a control unit which controls all of the components of the oven (automaton, watertight doors, movable partitions, pumping installations, injection of treatment gas, treatment means). and this, as a function of data entered in memory and relating to the nature of the parts and to the nature of the processing which it is desired to carry out.
Ainsi l'invention permet avantageusement la réalisation de traitement à façon avec une rentabilisation des installations avoisinant celle des fours de traitement en continu de pie ces en grande série. Thus, the invention advantageously allows custom processing to be carried out with a profitability of the installations close to that of the continuous treatment furnaces of pies these in large series.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8220213A FR2537260B3 (en) | 1982-12-02 | 1982-12-02 | MULTICELLULAR OVEN FOR THE THERMAL, THERMOCHEMICAL OR ELECTROTHERMAL TREATMENT OF METALS UNDER RAREFIED ATMOSPHERE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8220213A FR2537260B3 (en) | 1982-12-02 | 1982-12-02 | MULTICELLULAR OVEN FOR THE THERMAL, THERMOCHEMICAL OR ELECTROTHERMAL TREATMENT OF METALS UNDER RAREFIED ATMOSPHERE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2537260A1 true FR2537260A1 (en) | 1984-06-08 |
FR2537260B3 FR2537260B3 (en) | 1985-11-22 |
Family
ID=9279723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8220213A Expired FR2537260B3 (en) | 1982-12-02 | 1982-12-02 | MULTICELLULAR OVEN FOR THE THERMAL, THERMOCHEMICAL OR ELECTROTHERMAL TREATMENT OF METALS UNDER RAREFIED ATMOSPHERE |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2537260B3 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2559883A1 (en) * | 1984-02-20 | 1985-08-23 | Tijoux Pierre | Continuous rotating oven device with separate chambers and continuous production |
FR2640999A1 (en) * | 1988-12-27 | 1990-06-29 | Stein Heurtey | |
EP0388333A1 (en) * | 1989-03-17 | 1990-09-19 | Etudes Et Constructions Mecaniques | Apparatus for performing sequences of continous heat treatments in vacuum |
EP0423710A1 (en) * | 1989-10-20 | 1991-04-24 | Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH | Multiple chamber vacuum installation |
EP0484667A1 (en) * | 1990-10-25 | 1992-05-13 | Aichelin Gmbh | Multi-purpose furnace for the thermal treatment of metallic workpieces |
EP0530513A1 (en) * | 1991-08-09 | 1993-03-10 | Caterpillar Inc. | Heat treat furnace system for performing different carburizing processes simultaneously |
EP0811697A2 (en) * | 1996-06-06 | 1997-12-10 | Dowa Mining Co., Ltd. | Method and apparatus for carburizing, quenching and tempering |
FR2771754A1 (en) * | 1997-12-02 | 1999-06-04 | Etudes Const Mecaniques | MODULAR VACUUM HEAT TREATMENT PLANT |
DE10118244C1 (en) * | 2001-04-11 | 2002-08-22 | Ald Vacuum Techn Ag | Modular device for quench hardening workpieces |
EP1319724A1 (en) * | 2001-12-14 | 2003-06-18 | JH Corporation | Vacuum heat-treatment apparatus |
DE10359458A1 (en) * | 2003-12-17 | 2005-07-28 | Ald Vacuum Technologies Ag | Jobs interlinked heat treatment device, has treatment chambers each corresponding over inner shutters with transport chamber that contains transport equipment for conveying jobs, where equipment are rotated on admission arms |
EP2607504A1 (en) * | 2011-12-23 | 2013-06-26 | Ipsen, Inc. | Load transport mechanism for a multi-station heat treating system |
WO2019158365A1 (en) * | 2018-02-13 | 2019-08-22 | Ebner Industrieofenbau Gmbh | Assembly having multiple tempering stations for the thermal treatment of components and the handling thereof |
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1982
- 1982-12-02 FR FR8220213A patent/FR2537260B3/en not_active Expired
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2559883A1 (en) * | 1984-02-20 | 1985-08-23 | Tijoux Pierre | Continuous rotating oven device with separate chambers and continuous production |
FR2640999A1 (en) * | 1988-12-27 | 1990-06-29 | Stein Heurtey | |
EP0376832A1 (en) * | 1988-12-27 | 1990-07-04 | STEIN HEURTEY, Société Anonyme: | Automatic thermal treatment installations |
WO1990007583A1 (en) * | 1988-12-27 | 1990-07-12 | Stein Heurtey | Automated thermal processing installation |
EP0388333A1 (en) * | 1989-03-17 | 1990-09-19 | Etudes Et Constructions Mecaniques | Apparatus for performing sequences of continous heat treatments in vacuum |
FR2644567A1 (en) * | 1989-03-17 | 1990-09-21 | Etudes Const Mecaniques | DEVICE FOR EXECUTING HEAT TREATMENTS CONTINUOUS IN VACUUM CONTINUOUS |
US5033927A (en) * | 1989-03-17 | 1991-07-23 | Etudes Et Constructions Mechaniques | Device for carrying out sequential thermal treatments under a vacuum |
EP0423710A1 (en) * | 1989-10-20 | 1991-04-24 | Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH | Multiple chamber vacuum installation |
EP0484667A1 (en) * | 1990-10-25 | 1992-05-13 | Aichelin Gmbh | Multi-purpose furnace for the thermal treatment of metallic workpieces |
EP0530513A1 (en) * | 1991-08-09 | 1993-03-10 | Caterpillar Inc. | Heat treat furnace system for performing different carburizing processes simultaneously |
EP0811697A2 (en) * | 1996-06-06 | 1997-12-10 | Dowa Mining Co., Ltd. | Method and apparatus for carburizing, quenching and tempering |
EP0811697A3 (en) * | 1996-06-06 | 1999-01-27 | Dowa Mining Co., Ltd. | Method and apparatus for carburizing, quenching and tempering |
FR2771754A1 (en) * | 1997-12-02 | 1999-06-04 | Etudes Const Mecaniques | MODULAR VACUUM HEAT TREATMENT PLANT |
EP0922778A1 (en) * | 1997-12-02 | 1999-06-16 | Etudes Et Constructions Mecaniques | Modular device for the vacuum heat treatment |
US6065964A (en) * | 1997-12-02 | 2000-05-23 | Etudes Et Constructions Mecaniques | Modular vacuum thermal processing installation |
DE10118244C1 (en) * | 2001-04-11 | 2002-08-22 | Ald Vacuum Techn Ag | Modular device for quench hardening workpieces |
EP1319724A1 (en) * | 2001-12-14 | 2003-06-18 | JH Corporation | Vacuum heat-treatment apparatus |
US6814573B2 (en) | 2001-12-14 | 2004-11-09 | Jh Corporation | Vacuum heat-treatment apparatus |
DE10359458A1 (en) * | 2003-12-17 | 2005-07-28 | Ald Vacuum Technologies Ag | Jobs interlinked heat treatment device, has treatment chambers each corresponding over inner shutters with transport chamber that contains transport equipment for conveying jobs, where equipment are rotated on admission arms |
DE10359458B4 (en) * | 2003-12-17 | 2009-09-24 | Ald Vacuum Technologies Gmbh | Device for the chained heat treatment of workpieces under negative pressure |
EP2607504A1 (en) * | 2011-12-23 | 2013-06-26 | Ipsen, Inc. | Load transport mechanism for a multi-station heat treating system |
US9719149B2 (en) | 2011-12-23 | 2017-08-01 | Ipsen, Inc. | Load transport mechanism for a multi-station heat treating system |
WO2019158365A1 (en) * | 2018-02-13 | 2019-08-22 | Ebner Industrieofenbau Gmbh | Assembly having multiple tempering stations for the thermal treatment of components and the handling thereof |
US11644239B2 (en) | 2018-02-13 | 2023-05-09 | Ebner Industrieofenbau Gmbh | Arrangement having plural temperature-control stations for heat treating component parts, and their handling |
Also Published As
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FR2537260B3 (en) | 1985-11-22 |
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