EP3215280B1 - System and method for local surface treatment - Google Patents
System and method for local surface treatment Download PDFInfo
- Publication number
- EP3215280B1 EP3215280B1 EP15808702.3A EP15808702A EP3215280B1 EP 3215280 B1 EP3215280 B1 EP 3215280B1 EP 15808702 A EP15808702 A EP 15808702A EP 3215280 B1 EP3215280 B1 EP 3215280B1
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- EP
- European Patent Office
- Prior art keywords
- treated
- treatment
- surface treatment
- local surface
- bath
- Prior art date
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Images
Classifications
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/022—Anodisation on selected surface areas
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/026—Electroplating of selected surface areas using locally applied jets of electrolyte
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/005—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material incorporating means for heating or cooling the liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/09—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles
- B05C3/109—Passing liquids or other fluent materials into or through chambers containing stationary articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/20—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material for applying liquid or other fluent material only at particular parts of the work
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/08—Apparatus, e.g. for photomechanical printing surfaces
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/005—Apparatus specially adapted for electrolytic conversion coating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/02—Tanks; Installations therefor
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/04—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material with special provision for agitating the work or the liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/12—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/02—Heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/06—Filtering particles other than ions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/10—Agitating of electrolytes; Moving of racks
Definitions
- the invention relates to systems and methods for local surface treatment of industrial parts.
- the invention relates to systems and methods for the local treatment of metal parts intended for aeronautical use.
- the treatment of the surfaces of parts consists in applying one or more treatment products to the surface of a part to form a coating, the purpose of which is to improve the protection of the part, for example against corrosion, better chemical or mechanical resistance, etc., or a change in the external appearance of the part, for example by applying a layer of paint.
- the coating is formed by applying the treatment products to the part by soaking said piece in one or more baths each comprising a treatment product.
- the baths are located in tanks adapted to the size of the room to be treated. This soaking process is already proven in the field of aeronautics and allows the obtaining of qualified coatings in accordance with the constraints of this field, in particular in terms of performance and environmental constraints.
- devices allow the local application of a treatment product by the use of pads soaked with this treatment product. Nevertheless, these devices are used by manual application on the part of the part to be treated. Thus the application times are long and not compatible with a series production line. Moreover, the manual application is not very reproducible, and can generate coulures likely to pollute and degrade peripheral areas to those treated. Finally, these applications have not been systematically certified in the aeronautical field, and therefore can not be used to form certain types of coatings.
- the document DE 298 13 977 U1 discloses a local surface treatment system of a workpiece of the prior art.
- the invention aims to overcome at least some of the disadvantages of known local surface treatment systems and methods.
- the invention also aims to provide, in at least one embodiment of the invention, a system and a method of local surface treatment that allow local processing of large parts.
- the invention also aims to provide, in at least one embodiment, a system and a method of local surface treatment that allow a local treatment does not question the quality of the formed coating, compared to a bath dipping.
- the invention also aims to provide, in at least one embodiment of the invention, a system and method for mobile surface local processing, that is to say that can be moved and used on a production site, a repair site, a maintenance site, etc.
- the invention also aims to provide, in at least one embodiment, a system and a method of local surface treatment guaranteeing the absence of run-off of treatment product on surfaces that do not require treatment.
- the invention also aims to provide, in at least one embodiment, a system and method for local surface treatment that can be used on series production lines.
- the invention also aims to provide, in at least one embodiment, a high performance surface treatment system and method.
- the invention also aims to provide, in at least one embodiment, an inexpensive local surface treatment system and method.
- An aircraft part is a part mounted on an aircraft or intended to be mounted on an aircraft.
- a local surface treatment system therefore allows the treatment of a workpiece with a treatment product by providing a bath directly to the workpiece with the bath box that allows apply the treatment product to the part of the part that one wishes to treat.
- the bath box also allows the application of the treatment product in different situations, especially on a part of a room facing the ground. The tightness of the sealed space defined by the box avoids run-off on other parts of the workpiece that do not require treatment.
- the local surface treatment system allows the use of treatment products identical to those used in bath dipping techniques for local application.
- the local surface treatment system according to the invention does not call into question the quality and the possible certifications of the treatment with respect to bath dipping.
- the speed, cost and energy consumption of the local treatment system of surface are substantially equivalent to bath dipping of the prior art.
- the local surface treatment system is suitable for mass production, and may be automated, for example by means of robotic arms to bring the bath box to the surface to be treated.
- the treatment products used are, for example, products that make it possible to limit the risks and the effects of corrosion, to facilitate the subsequent application of another treatment product, to bring an aesthetic quality to the part to be treated, to improve chemical and mechanical resistance to environmental conditions, etc.
- the use of a bath box also makes it possible to carry out local treatment on parts of any size, and in particular for example directly on an aircraft at a maintenance or repair site, without having to isolate the part to be treated.
- the shape of the bath box can be adapted for the treatment of workpieces of different shapes, for example flat, curved or cylindrical (especially for piping).
- the presence of a plurality of reservoirs allows the successive or simultaneous application of several treatment products each from a different reservoir. If certain treatment products are not to be mixed, the controlled supply circuit can be configured to do not feed the waterproof space simultaneously with these products.
- One of the tanks may further comprise a rinsing product to avoid the mixing of treatment products.
- One of the reservoirs may further comprise a stripping product used first in the treatment to allow the treatment of parts to be treated having already one or more layers of paint.
- At least one bath box in particular each bath box, comprises a wall having an opening, adapted to cover the part of the piece to be treated so that the sealed space is delimited by the wall of the bath box on the one hand, and the part of the workpiece on the other hand.
- the opening allows an arrangement of the box on the part of the part to be treated, this part of part playing the role of closing the box to form the sealed space.
- the opening is surrounded by seals.
- the seals make it possible to improve the tightness of the sealed space, in order to avoid run-off of the treatment product on parts of the part which must not be treated by the treatment product.
- At least one bath box in particular each bath box, comprises a device for regulating the temperature in the sealed space, said regulating device comprising heating means and means for measuring the temperature. temperature.
- the device allows the regulation of the temperature inside the sealed space, for example if the treatment product needs to be used under particular temperature conditions, or to check the temperature. smooth treatment inside the sealed space by controlling the temperature or variations in temperature.
- At least one bath box in particular each bath box, comprises means for agitating the treatment product in the sealed space
- the stirring means make it possible to homogenize the treatment product to allow the same application throughout the part of the part to be treated.
- the aeronautical part is a large part.
- large part is meant a piece whose dimensions are large relative to a human operator, difficult to manipulate or not manipulated or maneuverable by a human operator because of its large size and generally requiring the use of robotic elements such as robotic arms to be manipulated.
- the size of large parts particularly requires their manipulation or maneuvering in suitable spaces and equipment, such as sheds.
- a large aeronautical part is for example the elements of a cell of an aircraft, that is to say a fuselage, a wing (or wing), a tail, or the complete cell itself. when the aircraft is assembled.
- a system according to the invention comprises a plurality of bath boxes adapted to delimit a plurality of sealed spaces between the plurality of bath boxes and a plurality of parts of the workpiece.
- the presence of a plurality of bath boxes allows the simultaneous application of the same treatment product, or a mixture of treatment products, to several parts of the workpiece. This greatly improves the speed of surface treatment, by simultaneous treatment, using a single system for all treatments to be performed.
- the bath boxes may have different shapes to adapt to pieces to be treated of different shapes.
- a system according to the invention comprises an electrical generator comprising a negative pole connected to at least one bath box, in particular each bath box, and a positive pole connected to the workpiece,
- the generator allows the anodizing treatments of the part, particularly when the piece is metallic, the part playing the role of an anode and the bath box playing the role of a cathode, and the treatment product being an electrolytic solution filling the sealed space between the workpiece and the bath box during the anodizing treatment.
- the negative pole is connected to the bath box for example by means of a connector screwed into the wall of the bath box.
- a system according to the invention comprises a filtration device arranged on the controlled supply circuit.
- the filtration device allows the depollution a treatment product already used before re-injecting it into the feed circuit.
- the invention is suitable for any part to be subjected to a surface treatment, whatever the field concerned and in particular the parts intended for aeronautical, naval, automobile, railway, etc. applications.
- the figure 1 schematically shows in section a system 100 of local surface treatment of a portion 101a, 101b of a workpiece 1 to be treated according to a first embodiment of the invention.
- the system 100 allows the treatment of a workpiece 1 to be treated with treatment products 22, 23, 24, 25, each treatment product 22, 23, 24, 25 being respectively stored in a reservoir 18, 19, 20, 21.
- the part 1 to be treated is for example a metal part forming part of an aircraft.
- the local treatment system 100 comprises one or more bath boxes, for example two boxes 102a, 102b to bath in this first embodiment, each being located on a face of the part 1 to be treated.
- Each box 102a, 102b bath delimits a sealed space 26a, 26b between walls 7a, 7b of each box 102a, 102b bath and the portion 101a, 101b of the workpiece.
- Each box 102a, 102b bath includes an opening adapted to cover the portion 101a, 101b of the workpiece so as to close the space 26a, 26b sealed.
- sealing joints 8 to prevent the flow of one of the treatment products on other areas of the workpiece that the portion 101a, 101b of the workpiece.
- These sealing seals 8 can be made for example by means of an adhesive masking tape adhesive allowing the protection of the workpiece 1 to be treated, or by electromagnetic suction pads, allowing the connection with the workpiece 1 to be treated, covered with an elastomeric material allowing sealing, or thanks to a mechanical assembly compressing a seal.
- the reservoirs 18, 19, 20, 21 are connected to each sealed space 26a, 26b by a controlled supply circuit.
- the controlled supply circuit comprises a set of valves, here solenoid valves 35 allowing the supply of one or more spaces 26a, 26b sealed products 22, 23, 24, 25 treatment from one or more tanks 18 , 19, 20, 21.
- the products 22, 23, 24, 25 of treatment are transported in the supply circuit by means of pumps 33, one per tank, and connected to the tanks by conduits 14, 15, 16,
- a programmable controller 34 controls the opening and closing of the solenoid valves 35 and the operation of the pumps 33 (on / off, flow, etc.).
- the controlled supply circuit 10 is connected to the spaces 26a, 26b sealed by conduits 9a, 9b of supply and extraction. These conduits 9a, 9b of supply and extraction through the walls 7a, 7b boxes 102a, 102b bath to allow the supply of sealed spaces 26a, 26b product 22, 23, 24, 25 treatment.
- the extraction of the treatment products is carried out by the conduits 9a, 9b of supply and extraction through divers 38, or by a simple extraction plug (not shown) and by playing on the relative slope of the bath box for the total extraction of the product 22, 23, 24, 25 of treatment present in the sealed space 26a, 26b, Two additional additional supply and extraction ducts 9c and 9d are shown, having the same characteristics that the ducts 9a, 9b of supply and extraction.
- the additional duct 9d supply and extraction is connected for example to a bath box not shown, and the additional duct 9c supply and extraction is equipped with a filter device comprising for example a filter and a de-oiler (not shown) and allowing for example to clean up a treatment product already used before reinjecting it into the feed circuit.
- a filter device comprising for example a filter and a de-oiler (not shown) and allowing for example to clean up a treatment product already used before reinjecting it into the feed circuit.
- tanks not shown may contain other types of treatment products.
- the system 100 comprises an electric generator 2, a negative pole is connected to the walls of the boxes 102a, 102b bath via 6 points of connection to the boxes and through cables 3 of cathode, and a positive pole is connected to the workpiece 1 to be treated via a connection point 5 to the workpiece and through anode cables 4.
- the bath boxes 102a, 102b form cathodes and the part 1 to be treated forms an anode for treatment by anodization.
- the sealed spaces 26a, 26b are filled with a treatment product acting as an electrolytic solution.
- the power supply of the electric generator is read by an ammeter 32, and its voltage is read a voltmeter 31.
- the reservoirs 18, 19, 20, 21 may also each comprise such sensors and / or equipment, such as, for example, a resistor 12, a temperature probe 27 and a temperature control system 37.
- the figure 2 schematically shows in section a system 104 of local surface treatment according to a second embodiment.
- This second embodiment includes elements of the first embodiment described figure 1 .
- the elements already described above are not described again and have the same references. The different elements are described below.
- a single box 105 bath is shown, allowing the treatment of a workpiece 106 to be cylindrical, for example a pipe element.
- the workpiece 106 to be treated is surrounded by the bath box 105, and the bath box 105 comprises a wall formed of two portions 7c and 7d, joined by seals 8, for example electromagnetic suction cups. Fixing the two portions 7c, 7d of the wall is further reinforced by the addition of clamps 40 fixing.
- the piece 106 to be cylindrical is inserted into the bath box by a circular opening of the same diameter as the piece 106 to be cylindrical, not visible in the sectional view.
- connection point 5 of connection to the workpiece is shown inside the workpiece, but the point of connection to the workpiece is advantageously located on a part of the workpiece which is not surrounded by the bath box 105.
- the connection point 5 can also be located on a metal support of the part (not shown) on which the workpiece rests during processing.
- the box 105 bath according to this embodiment therefore allows the treatment of an outer portion of the workpiece 106 to be cylindrical.
- the figure 3 schematically represents a method 107 of local surface treatment according to one embodiment of the invention.
- the local treatment method 107 surface comprises a step 108 of placing a bath box on the workpiece, so as to delimit a sealed space 26, 26a, 26b as shown in FIGS. figures 1 and 2 , between the bath box and the part of the room to be treated.
- the surface treatment method 107 then comprises a step 109 of supplying the sealed space with a treatment product through the controlled supply circuit as shown in FIGS. figures 1 and 2 then a step 110 of applying the treatment product to a part of the workpiece.
- the number of tanks and bath boxes in the system may vary according to the needs, as well as the number and type of treatment products used, the number of sensors and devices present on the bath boxes in the spaces. sealed by these bath boxes, and / or tanks, etc.
- the plurality of bath boxes can make it possible simultaneously to treat several parts of the same workpiece but also several parts of different workpieces, which makes it possible, for example, to speed up the rate of production in the workpiece. frame of a series production allowing the treatment of several parts simultaneously.
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Description
L'invention concerne les systèmes et procédés de traitement local de surface de pièces industrielles. En particulier, l'invention concerne les systèmes et procédés de traitement local de pièces métalliques destinées à un usage aéronautique.The invention relates to systems and methods for local surface treatment of industrial parts. In particular, the invention relates to systems and methods for the local treatment of metal parts intended for aeronautical use.
Le traitement des surfaces de pièces, notamment de pièces métalliques, consiste à appliquer sur la surface d'une pièce un ou plusieurs produits de traitement pour former un revêtement, qui a pour objectif une amélioration de la protection de la pièce, par exemple contre la corrosion, une meilleure résistance chimique ou mécanique, etc., ou une modification de l'aspect extérieur de la pièce, par exemple par application d'une couche de peinture.The treatment of the surfaces of parts, in particular of metal parts, consists in applying one or more treatment products to the surface of a part to form a coating, the purpose of which is to improve the protection of the part, for example against corrosion, better chemical or mechanical resistance, etc., or a change in the external appearance of the part, for example by applying a layer of paint.
Généralement, le revêtement est formé en appliquant les produits de traitement sur la pièce par trempage de ladite pièce dans un ou plusieurs bains comprenant chacun un produit de traitement. Les bains sont situés dans des cuves adaptées à la taille de la pièce à traiter. Ce procédé de trempage est déjà éprouvé dans le domaine de l'aéronautique et permet l'obtention de revêtements qualifiés conformes aux contraintes de ce domaine, notamment en termes de contraintes de performances et environnementales.Generally, the coating is formed by applying the treatment products to the part by soaking said piece in one or more baths each comprising a treatment product. The baths are located in tanks adapted to the size of the room to be treated. This soaking process is already proven in the field of aeronautics and allows the obtaining of qualified coatings in accordance with the constraints of this field, in particular in terms of performance and environmental constraints.
Néanmoins, ces traitements par trempage par bain ont pour principal inconvénient de ne pas permettre l'application de traitement de surface localisé sur seulement une ou plusieurs parties de la pièce. De plus, la taille de la cuve contenant le bain limite la taille de la pièce pouvant être traitée.Nevertheless, these bath dipping treatments have the main disadvantage of not allowing the application of surface treatment localized on only one or more parts of the room. In addition, the size of the tub containing the bath limits the size of the workpiece that can be treated.
Des solutions ont été proposées pour résoudre ce problème.Solutions have been proposed to solve this problem.
Par exemple, des dispositifs permettent l'application locale d'un produit de traitement par l'utilisation de tampons imbibés de ce produit de traitement. Néanmoins, ces dispositifs sont utilisés par application manuelle sur la partie de la pièce à traiter. Ainsi les temps d'applications sont longs et peu compatibles avec une chaine de production en série. De plus, l'application manuelle est peu reproductible, et peut engendrer des coulures susceptibles de polluer et dégrader des zones périphériques à celles traitées. Enfin, ces applications n'ont pas été systématiquement certifiées dans le domaine aéronautique, et ne peuvent donc pas être utilisées pour former certains types de revêtements.For example, devices allow the local application of a treatment product by the use of pads soaked with this treatment product. Nevertheless, these devices are used by manual application on the part of the part to be treated. Thus the application times are long and not compatible with a series production line. Moreover, the manual application is not very reproducible, and can generate coulures likely to pollute and degrade peripheral areas to those treated. Finally, these applications have not been systematically certified in the aeronautical field, and therefore can not be used to form certain types of coatings.
Une autre solution proposée est le traitement par projection thermique. Néanmoins, cette solution nécessite des investissements coûteux, notamment du fait des équipements utilisés (moyens automatisés, systèmes sous atmosphère contrôlée, torches à plasma, etc.), et n'a pas été certifiée dans le domaine aéronautique. De plus, cette solution n'est utilisable que sur le site de production et non pour une réparation directe sur un autre siteAnother solution proposed is the thermal spray treatment. Nevertheless, this solution requires expensive investments, particularly because of the equipment used (automated means, controlled atmosphere systems, plasma torches, etc.), and has not been certified in the aeronautical field. In addition, this solution can only be used on the production site and not for direct repair on another site.
Le document
L'invention vise à pallier au moins certains des inconvénients des systèmes et procédés de traitement local de surface connus.The invention aims to overcome at least some of the disadvantages of known local surface treatment systems and methods.
En particulier, l'invention vise aussi à fournir, dans au moins un mode de réalisation de l'invention, un système et un procédé de traitement local de surface qui permettent un traitement local de pièces de grandes dimensions.In particular, the invention also aims to provide, in at least one embodiment of the invention, a system and a method of local surface treatment that allow local processing of large parts.
L'invention vise aussi à fournir, dans au moins un mode de réalisation, un système et un procédé de traitement local de surface qui permettent un traitement local ne remettant pas en cause la qualité du revêtement formé, par rapport à un trempage par bain.The invention also aims to provide, in at least one embodiment, a system and a method of local surface treatment that allow a local treatment does not question the quality of the formed coating, compared to a bath dipping.
L'invention vise aussi à fournir, dans au moins un mode de réalisation de l'invention, un système et un procédé de traitement local de surface mobiles, c'est-à -dire pouvant être déplacés et utilisés sur un site de production, un site de réparation, un site de maintenance, etc.The invention also aims to provide, in at least one embodiment of the invention, a system and method for mobile surface local processing, that is to say that can be moved and used on a production site, a repair site, a maintenance site, etc.
L'invention vise aussi à fournir, dans au moins un mode de réalisation, un système et un procédé de traitement local de surface garantissant l'absence de coulure de produit de traitement sur des surfaces ne nécessitant pas de traitement.The invention also aims to provide, in at least one embodiment, a system and a method of local surface treatment guaranteeing the absence of run-off of treatment product on surfaces that do not require treatment.
L'invention vise aussi à fournir, dans au moins un mode de réalisation, un système et un procédé de traitement local de surface pouvant être utilisés sur des chaines de production en série.The invention also aims to provide, in at least one embodiment, a system and method for local surface treatment that can be used on series production lines.
L'invention vise aussi à fournir, dans au moins un mode de réalisation, un système et un procédé de traitement local de surface performants.The invention also aims to provide, in at least one embodiment, a high performance surface treatment system and method.
L'invention vise aussi à fournir, dans au moins un mode de réalisation, un système et un procédé de traitement local de surface peu coûteux.The invention also aims to provide, in at least one embodiment, an inexpensive local surface treatment system and method.
Pour ce faire, l'invention concerne un système de traitement local de surface d'une pièce aéronautique à traiter, caractérisé en ce qu'il comprend :
- une pluralité de réservoirs comprenant chacun un produit de traitement,
- au moins une boite à bain adaptée pour délimiter un espace étanche entre cette boite à bain et une partie de la pièce à traiter,
- un circuit commandé d'alimentation dudit espace étanche en produit de traitement d'au moins un réservoir, reliant les réservoirs audit espace étanche et comprenant des vannes permettant la gestion de l'alimentation de l'espace étanche par un ou plusieurs réservoirs de la pluralité de réservoirs.
- a plurality of reservoirs each comprising a treatment product,
- at least one bath box adapted to delimit a sealed space between this bath box and a part of the workpiece,
- a controlled circuit supplying said watertight space with treatment product of at least one reservoir, connecting the reservoirs to said sealed space and comprising valves allowing management of the supply of the sealed space by one or more reservoirs of the plurality of tanks.
On entend par pièce aéronautique une pièce montée sur un aéronef ou destinée à être montée sur un aéronef.An aircraft part is a part mounted on an aircraft or intended to be mounted on an aircraft.
Un système de traitement local de surface selon l'invention permet donc le traitement d'une pièce à traiter à l'aide d'un produit de traitement en apportant directement un bain à la pièce à traiter grâce à la boite à bain qui permet d'appliquer le produit de traitement à la partie de la pièce que l'on souhaite traiter. La boite à bain permet en outre l'application du produit de traitement dans différentes situations, notamment sur une partie d'une pièce dirigée vers le sol. L'étanchéité de l'espace étanche délimité par la boite permet d'éviter les coulures sur d'autres parties de la pièce à traiter qui ne nécessitent pas de traitement.A local surface treatment system according to the invention therefore allows the treatment of a workpiece with a treatment product by providing a bath directly to the workpiece with the bath box that allows apply the treatment product to the part of the part that one wishes to treat. The bath box also allows the application of the treatment product in different situations, especially on a part of a room facing the ground. The tightness of the sealed space defined by the box avoids run-off on other parts of the workpiece that do not require treatment.
Le système de traitement local de surface permet l'utilisation de produits de traitement identiques à ceux utilisés dans les techniques de trempages par bain, pour une application locale. Ainsi, dans le domaine de l'aéronautique, le système de traitement local de surface selon l'invention ne remet pas en cause la qualité et les éventuelles certifications du traitement par rapport à un trempage par bain. En outre, la vitesse, le coût et la consommation énergétique du système de traitement local de surface sont sensiblement équivalents au trempage par bain de l'art antérieur. Le système de traitement local de surface est adapté à une production en série, et peut-être automatisé, par exemple grâce à des bras robotisés pour amener la boite à bain sur la surface à traiter.The local surface treatment system allows the use of treatment products identical to those used in bath dipping techniques for local application. Thus, in the field of aeronautics, the local surface treatment system according to the invention does not call into question the quality and the possible certifications of the treatment with respect to bath dipping. In addition, the speed, cost and energy consumption of the local treatment system of surface are substantially equivalent to bath dipping of the prior art. The local surface treatment system is suitable for mass production, and may be automated, for example by means of robotic arms to bring the bath box to the surface to be treated.
Les produits de traitement utilisés sont par exemple des produits permettant de limiter les risques et les effets de corrosion, de faciliter l'application postérieure d'un autre produit de traitement, d'apporter une qualité esthétique à la pièce à traiter, d'améliorer la résistance chimique et mécanique aux conditions environnementales, etc.The treatment products used are, for example, products that make it possible to limit the risks and the effects of corrosion, to facilitate the subsequent application of another treatment product, to bring an aesthetic quality to the part to be treated, to improve chemical and mechanical resistance to environmental conditions, etc.
L'utilisation d'une boite à bain permet en outre d'effectuer un traitement local sur des pièces de tailles quelconques, et notamment par exemple directement sur un aéronef sur un site de maintenance ou de réparation, sans avoir à isoler la pièce à traiter. La forme de la boite à bain peut être adaptée pour le traitement de pièces à traiter de différentes formes, par exemple planes, courbées ou cylindriques (notamment pour de la tuyauterie).The use of a bath box also makes it possible to carry out local treatment on parts of any size, and in particular for example directly on an aircraft at a maintenance or repair site, without having to isolate the part to be treated. . The shape of the bath box can be adapted for the treatment of workpieces of different shapes, for example flat, curved or cylindrical (especially for piping).
La présence d'une pluralité de réservoirs permet l'application successive ou simultanée de plusieurs produits de traitement provenant chacun d'un réservoir différent, Si certains produits de traitement ne doivent pas être mélangés, le circuit commandé d'alimentation peut être configuré pour ne pas alimenter l'espace étanche simultanément avec ces produits. Un des réservoirs peut en outre comprendre un produit de rinçage permettant d'éviter le mélange de produits de traitement. Un des réservoirs peut en outre comprendre un produit de décapage utilisé en premier dans le traitement pour permettre le traitement de pièces à traiter ayant déjà une ou plusieurs couches de peinture.The presence of a plurality of reservoirs allows the successive or simultaneous application of several treatment products each from a different reservoir. If certain treatment products are not to be mixed, the controlled supply circuit can be configured to do not feed the waterproof space simultaneously with these products. One of the tanks may further comprise a rinsing product to avoid the mixing of treatment products. One of the reservoirs may further comprise a stripping product used first in the treatment to allow the treatment of parts to be treated having already one or more layers of paint.
Avantageusement et selon l'invention, au moins une boite à bain, notamment chaque boite à bain, comprend une paroi présentant une ouverture, adaptée pour couvrir la partie de la pièce à traiter de façon à ce que l'espace étanche soit délimité par la paroi de la boite à bain d'une part, et la partie de la pièce à traiter d'autre part.Advantageously and according to the invention, at least one bath box, in particular each bath box, comprises a wall having an opening, adapted to cover the part of the piece to be treated so that the sealed space is delimited by the wall of the bath box on the one hand, and the part of the workpiece on the other hand.
Selon cet aspect de l'invention, l'ouverture permet un agencement de la boite sur la partie de pièce à traiter, cette partie de pièce jouant le rôle de fermeture de la boite pour former l'espace étanche.According to this aspect of the invention, the opening allows an arrangement of the box on the part of the part to be treated, this part of part playing the role of closing the box to form the sealed space.
Avantageusement et selon l'invention, l'ouverture est entourée de joints d'étanchéité.Advantageously and according to the invention, the opening is surrounded by seals.
Selon cet aspect de l'invention, les joints d'étanchéité permettent d'améliorer l'étanchéité de l'espace étanche, afin d'éviter les coulures du produit de traitement sur des parties de la pièce qui ne doivent pas être traitées par le produit de traitement.According to this aspect of the invention, the seals make it possible to improve the tightness of the sealed space, in order to avoid run-off of the treatment product on parts of the part which must not be treated by the treatment product.
Avantageusement et selon l'invention, au moins une boite à bain, notamment chaque boite à bain, comprend un dispositif de régulation de la température dans l'espace étanche, ledit dispositif de régulation comprenant des moyens de chauffage et des moyens de mesure de la température.Advantageously and according to the invention, at least one bath box, in particular each bath box, comprises a device for regulating the temperature in the sealed space, said regulating device comprising heating means and means for measuring the temperature. temperature.
Selon cet aspect de l'invention, le dispositif permet la régulation de la température à l'intérieur de l'espace étanche, par exemple si le produit de traitement nécessite d'être utilisé dans des conditions de température particulières, ou bien pour vérifier le bon déroulement du traitement à l'intérieur de l'espace étanche par contrôle de la température ou des variations de la température.According to this aspect of the invention, the device allows the regulation of the temperature inside the sealed space, for example if the treatment product needs to be used under particular temperature conditions, or to check the temperature. smooth treatment inside the sealed space by controlling the temperature or variations in temperature.
Avantageusement et selon l'invention, au moins une boite à bain, notamment chaque boite à bain, comprend des moyens d'agitation du produit de traitement dans l'espace étanche,Advantageously and according to the invention, at least one bath box, in particular each bath box, comprises means for agitating the treatment product in the sealed space,
Selon cet aspect de l'invention, les moyens d'agitation permettent d'homogénéiser le produit de traitement pour permettre une application identique sur l'ensemble de la partie de la pièce à traiter.According to this aspect of the invention, the stirring means make it possible to homogenize the treatment product to allow the same application throughout the part of the part to be treated.
Avantageusement et selon l'invention, la pièce aéronautique est une pièce de grandes dimensions.Advantageously and according to the invention, the aeronautical part is a large part.
On entend par pièce de grandes dimensions une pièce dont les dimensions sont grandes par rapport à un opérateur humain, difficilement manipulable on non manipulable ou manoeuvrable par un opérateur humain de part ses grandes dimensions et nécessitant généralement l'utilisation d'éléments robotisés tels que des bras robotisés pour être manipulé. L'encombrement des pièces de grandes dimensions nécessite notamment leur manipulation ou manoeuvre dans des espaces et équipements adaptés, tels que des hangars.By large part is meant a piece whose dimensions are large relative to a human operator, difficult to manipulate or not manipulated or maneuverable by a human operator because of its large size and generally requiring the use of robotic elements such as robotic arms to be manipulated. The size of large parts particularly requires their manipulation or maneuvering in suitable spaces and equipment, such as sheds.
En particulier, une pièce aéronautique de grandes dimensions est par exemple les éléments d'une cellule d'un aéronef, c'est-à -dire un fuselage, une aile (ou voilure), un empennage, ou la cellule complète elle-même, lorsque l'aéronef est assemblé.In particular, a large aeronautical part is for example the elements of a cell of an aircraft, that is to say a fuselage, a wing (or wing), a tail, or the complete cell itself. when the aircraft is assembled.
Avantageusement, un système selon l'invention comprend une pluralité de boites à bain adaptée pour délimiter une pluralité d'espaces étanches entre la pluralité de boites à bain et une pluralité de parties de la pièce à traiter.Advantageously, a system according to the invention comprises a plurality of bath boxes adapted to delimit a plurality of sealed spaces between the plurality of bath boxes and a plurality of parts of the workpiece.
Selon cet aspect de l'invention, la présence d'une pluralité de boites à bain permet l'application simultanée d'un même produit de traitement, ou d'un mélange de produits de traitement, à plusieurs parties de la pièce à traiter. Cela permet d'améliorer grandement la vitesse de traitement des surfaces, par traitement simultané, en utilisant un seul système pour l'ensemble des traitements à effectuer. En outre, les boites à bain pourront avoir des formes différentes pour s'adapter à des pièces à traiter de formes différentes.According to this aspect of the invention, the presence of a plurality of bath boxes allows the simultaneous application of the same treatment product, or a mixture of treatment products, to several parts of the workpiece. This greatly improves the speed of surface treatment, by simultaneous treatment, using a single system for all treatments to be performed. In addition, the bath boxes may have different shapes to adapt to pieces to be treated of different shapes.
Avantageusement, un système selon l'invention comprend un générateur électrique comprenant un pôle négatif relié à au moins une boite à bain, notamment chaque boite à bain, et un pôle positif relié à la pièce à traiter,Advantageously, a system according to the invention comprises an electrical generator comprising a negative pole connected to at least one bath box, in particular each bath box, and a positive pole connected to the workpiece,
Selon cet aspect de l'invention, le générateur permet les traitements par anodisation de la pièce, particulièrement lorsque la pièce est métallique, la pièce jouant le rôle d'une anode et la boite à bain jouant le rôle d'une cathode, et le produit de traitement étant une solution électrolytique remplissant l'espace étanche entre la pièce à traiter et la boîte à bain lors du traitement par anodisation. Le pôle négatif est relié à la boite à bain par exemple par l'intermédiaire d'un connecteur vissé dans la paroi de la boite à bain.According to this aspect of the invention, the generator allows the anodizing treatments of the part, particularly when the piece is metallic, the part playing the role of an anode and the bath box playing the role of a cathode, and the treatment product being an electrolytic solution filling the sealed space between the workpiece and the bath box during the anodizing treatment. The negative pole is connected to the bath box for example by means of a connector screwed into the wall of the bath box.
Avantageusement, un système selon l'invention comprend un dispositif de filtration agencé sur le circuit commandé d'alimentation.Advantageously, a system according to the invention comprises a filtration device arranged on the controlled supply circuit.
Selon cet aspect de l'invention, le dispositif de filtration permet la dépollution d'un produit de traitement déjà utilisé avant de le réinjecter dans le circuit d'alimentation.According to this aspect of the invention, the filtration device allows the depollution a treatment product already used before re-injecting it into the feed circuit.
L'invention concerne également un procédé de traitement local de surface d'une pièce aéronautique à traiter au moyen d'un système de traitement selon l'invention, comprenant une étape d'application d'au moins un produit de traitement sur une partie de la pièce à traiter, caractérisé en ce qu'il comprend préalablement à l'étape d'application :
- une étape de mise en place d'une boite à bain sur la pièce à traiter, de façon à délimiter un espace étanche entre la boite à bain et la partie de la pièce à traiter,
- une étape d'alimentation de l'espace étanche avec au moins un produit de traitement, ledit produit de traitement provenant d'un ou plusieurs réservoirs comprenant chacun un produit de traitement.
- a step of setting up a bath box on the workpiece, so as to delimit a sealed space between the bath box and the part of the workpiece,
- a step of supplying the sealed space with at least one treatment product, said treatment product coming from one or more reservoirs each comprising a treatment product.
L'invention est adaptée à toute pièce devant subir un traitement de surface, quelque soit le domaine concerné et notamment les pièces destinées à des applications aéronautiques, navales, automobiles, ferroviaires, etc.The invention is suitable for any part to be subjected to a surface treatment, whatever the field concerned and in particular the parts intended for aeronautical, naval, automobile, railway, etc. applications.
D'autres buts, caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante donnée à titre uniquement non limitatif et qui se réfère aux figures annexées dans lesquelles :
- la
figure 1 est une vue schématique en coupe d'un système de traitement local de surface selon un premier mode de réalisation de l'invention, - la
figure 2 est une vue schématique en coupe d'un système de traitement local de surface selon un deuxième mode de réalisation de l'invention, - la
figure 3 est une vue schématique d'un procédé de traitement local de surface selon un mode de réalisation de l'invention.
- the
figure 1 is a schematic sectional view of a local surface treatment system according to a first embodiment of the invention, - the
figure 2 is a schematic sectional view of a local treatment system of surface according to a second embodiment of the invention, - the
figure 3 is a schematic view of a local surface treatment method according to one embodiment of the invention.
Les réalisations suivantes sont des exemples. Bien que la description se réfère à un ou plusieurs modes de réalisation, ceci ne signifie pas nécessairement que chaque référence concerne le même mode de réalisation, ou que les caractéristiques s'appliquent seulement à un seul mode de réalisation. De simples caractéristiques de différents modes de réalisation peuvent également être combinées pour fournir d'autres réalisations.The following achievements are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features of different embodiments may also be combined to provide other embodiments.
La
Le système 100 permet le traitement d'une pièce 1 à traiter à l'aide de produits 22, 23, 24, 25 de traitement, chaque produit 22, 23, 24, 25 de traitement étant respectivement stocké dans un réservoir 18, 19, 20, 21. La pièce 1 à traiter est par exemple une pièce métallique faisant partie d'un aéronef.The
Pour effectuer un traitement local de la pièce 1 à traiter, par exemple sur une ou plusieurs parties 101a, 101b de la pièce à traiter, le système 100 de traitement local comprend une ou plusieurs boites à bain, par exemple deux boites 102a, 102b à bain dans ce premier mode de réalisation, chacune étant située sur une face de la pièce 1 à traiter. Chaque boite 102a, 102b à bain délimite un espace 26a, 26b étanche entre des parois 7a, 7b de chaque boîte 102a, 102b à bain et la partie 101a, 101b de la pièce à traiter. Chaque boite 102a, 102b à bain comprend une ouverture adaptée pour couvrir la partie 101a, 101b de la pièce à traiter de façon à clore l'espace 26a, 26b étanche.In order to perform a local treatment of the part 1 to be treated, for example on one or
L'ouverture est entourée de joints 8 d'étanchéité, permettant d'éviter les coulures d'un des produits de traitement sur d'autres zones de la pièce à traiter que la partie 101a, 101b de la pièce à traiter. Ces joints 8 d'étanchéité peuvent être réalisés par exemple grâce à un adhésif du type ruban adhésif de masquage permettant la protection de la pièce 1 à traiter, ou grâce à des ventouses électromagnétiques, permettant la liaison avec la pièce 1 à traiter, recouverts d'un matériau élastomère permettant l'étanchéité, ou grâce à un montage mécanique comprimant un joint.The opening is surrounded by sealing
Les réservoirs 18, 19, 20, 21 sont reliés à chaque espace 26a, 26b étanche par un circuit 10 commandé d'alimentation. Le circuit commandé d'alimentation comprend un ensemble de vannes, ici des électrovannes 35 permettant l'alimentation d'un ou plusieurs espaces 26a, 26b étanches en produits 22, 23, 24, 25 de traitement provenant d'un ou de plusieurs réservoirs 18, 19, 20, 21. Les produits 22, 23, 24, 25 de traitement sont transportés dans le circuit d'alimentation par le biais de pompes 33, une par réservoir, et reliées aux réservoirs par des conduits 14, 15, 16, 17 de tuyauterie, Un automate 34 programmable commande l'ouverture et la fermeture des électrovannes 35 et le fonctionnement des pompes 33 (marche/arrêt, débit, etc.).The
Le circuit 10 commandé d'alimentation est relié aux espaces 26a, 26b étanches par des conduits 9a, 9b d'alimentation et d'extraction. Ces conduits 9a, 9b d'alimentation et d'extraction traversent les parois 7a, 7b des boites 102a, 102b à bain pour permettre l'alimentation des espaces 26a, 26b étanches en produit 22, 23, 24, 25 de traitement. L'extraction des produits de traitement s'effectue par les conduits 9a, 9b d'alimentation et d'extraction grâce à des plongeurs 38, ou par un simple bouchon d'extraction (non représenté) et en jouant sur la pente relative de la boite à bain permettant l'extraction totale du produit 22, 23, 24, 25 de traitement présent dans l'espace 26a, 26b étanche, Deux autres conduits 9c et 9d supplémentaires d'alimentation et d'extraction sont représentés, présentant les mêmes caractéristiques que les conduits 9a, 9b d'alimentation et d'extraction. Le conduit 9d supplémentaire d'alimentation et d'extraction est relié par exemple à une boite à bain non représentée, et le conduit 9c supplémentaire d'alimentation et d'extraction est équipé d'un dispositif de filtration comprenant par exemple un filtre et un déshuileur (non représentés) et permettant par exemple de dépolluer un produit de traitement déjà utilisé avant de le réinjecter dans le circuit d'alimentation.The controlled
Le système 100 de traitement local de surface permet d'effectuer différents types de traitements locaux à la pièce 1 à traiter. Pour ce faire, les réservoirs 18, 19, 20, 21 contiennent différents types de produits 22, 23, 24, 25 de traitement, par exemple, dans ce mode de réalisation :
- le réservoir 18 comprend un produit 22 de dégraissage alcalin,
- le réservoir 19 comprend de l'eau 23 déminéralisée,
- le réservoir 20 comprend un produit 24 de décapage composé d'acide sodique,
- le réservoir 21 comprend un produit 25 de désoxydation.
- the
reservoir 18 comprises analkaline degreasing product 22, - the
reservoir 19 comprises deionizedwater 23, - the
reservoir 20 comprises a strippingproduct 24 composed of sodium acid, - the
reservoir 21 comprises a deoxidation product.
D'autres réservoirs non représentés peuvent contenir d'autres types de produits de traitement.Other tanks not shown may contain other types of treatment products.
En outre, pour permettre les traitements par anodisation, le système 100 comprend un générateur 2 électrique, dont un pôle négatif est relié aux parois des boites 102a, 102b à bain via des points 6 de connexion aux boites et par le biais de câbles 3 de cathode, et un pôle positif est relié à la pièce 1 à traiter via un point 5 de connexion à la pièce et par le biais de câbles 4 d'anode. Ainsi, les boites 102a, 102b à bain forment des cathodes et la pièce 1 à traiter forme une anode pour un traitement par anodisation. Durant un tel traitement, les espaces 26a, 26b étanches sont remplis par un produit de traitement faisant office de solution électrolytique. L'alimentation en courant électrique du générateur électrique est lue par un ampèremètre 32, et sa tension est lue un voltmètre 31.In addition, to allow the anodizing treatments, the
Différents capteurs et équipements sont présents sur les boites 102a, 102b à bain et permettent une surveillance et une régulation de différents paramètres liés à l'application du produit de traitement dans chaque espace étanche. Par exemple, chaque boite 102a, 102b à bain comprend :
- des moyens de chauffage, ici une résistance 12 électrique alimentée par un générateur de
courant 11, permettant de chauffer le produit de traitement présent dans l'espace étanche, - des moyens de mesure de la température, ici une sonde 27 de température, permettant de mesurer la température, et formant avec la résistance 12 un dispositif de régulation de température,
un temporisateur 28, permettant de mesurer le temps d'application du produit de traitement,- des moyens d'agitation, ici un agitateur 29 à air filtré, permettant d'homogénéiser le produit de traitement,
- des
buses 36 de pulvérisation, permettant la pulvérisation de produit de traitement sur la partie de la pièce à traiter, un système 37 de régulation de température, immergé dans le bain et conçu avec des composants résistants aux produits de traitement utilisés.
- heating means, here an
electrical resistance 12 supplied by acurrent generator 11, for heating the treatment product present in the sealed space, - temperature measuring means, here a
temperature sensor 27, for measuring the temperature, and forming with the resistor 12 a temperature control device, - a
timer 28 for measuring the application time of the treatment product, - stirring means, here a filtered
air agitator 29 for homogenizing the treatment product, -
nozzles 36 for spraying, allowing the spraying of product of treatment on the part of the part to be treated, - a
temperature control system 37, immersed in the bath and designed with components resistant to the treatment products used.
Les réservoirs 18, 19, 20, 21 peuvent aussi chacun comprendre de tels capteurs et/ou équipements, comme par exemple une résistance 12, une sonde de température 27 et un système 37 de régulation de température.The
La
Dans ce deuxième mode de réalisation, une seule boite 105 à bain est représentée, permettant le traitement d'une pièce 106 à traiter cylindrique, par exemple un élément de tuyauterie. La pièce 106 à traiter est entourée par la boite 105 à bain, et la boite 105 à bain comprend une paroi formée de deux portions 7c et 7d, réunies par des joints 8 d'étanchéité, par exemple des ventouses électromagnétiques. La fixation des deux portions 7c, 7d de la paroi est en outre renforcée par l'ajout de brides 40 de fixation. La pièce 106 à traiter cylindrique est insérée dans la boite à bain par une ouverture circulaire de même diamètre que la pièce 106 à traiter cylindrique, non visible sur la vue en coupe. Pour des raisons de lisibilité sur la représentation en coupe de la
La boite 105 à bain selon ce mode de réalisation permet donc le traitement d'une partie extérieure de la pièce 106 à traiter cylindrique.The
La
L'invention ne se limite pas aux seuls modes de réalisation décrits. En particulier, le nombre de réservoirs et de boites à bain dans le système peut varier en fonction des besoins, ainsi que le nombre et le type de produits de traitement utilisés, le nombre de capteurs et appareils présents sur les boites à bain dans les espaces étanches délimités par ces boites à bain, et/ou sur les réservoirs, etc. En outre, la pluralité de boites à bain peut permettre à la fois de traiter simultanément plusieurs parties d'une même pièce à traiter mais aussi plusieurs parties de pièces à traiter différentes, ce qui permet par exemple d'accélérer la cadence de production dans le cadre d'une production série en permettant le traitement de plusieurs pièces en simultané.The invention is not limited to the embodiments described. In particular, the number of tanks and bath boxes in the system may vary according to the needs, as well as the number and type of treatment products used, the number of sensors and devices present on the bath boxes in the spaces. sealed by these bath boxes, and / or tanks, etc. In addition, the plurality of bath boxes can make it possible simultaneously to treat several parts of the same workpiece but also several parts of different workpieces, which makes it possible, for example, to speed up the rate of production in the workpiece. frame of a series production allowing the treatment of several parts simultaneously.
Claims (10)
- System for the local surface treatment of an aeronautical part (1, 106) to be treated, the system comprising:- at least one bath box (102a, 102b, 105) adapted to delimit a sealed space (26a, 26b, 26) between the bath box (102a, 102b, 105) and a portion (101a, 101b) of the part to be treated,system characterised in that it comprises- a plurality of tanks (18, 19, 20, 21) each comprising a treatment product (22, 23, 24, 25), and- a controlled circuit (10) of said sealed space (26a, 26b, 26) for the supply of a treatment product (22, 23, 24, 25) from at least one tank (18, 19, 20, 21), connecting the tanks (18, 19, 20, 21) to said sealed space (26a, 26b, 26) and comprising valves enabling the management of the supply of the sealed space by one or several tanks from the plurality of tanks.
- Local surface treatment system according to claim 1, characterised in that at least one bath box (102a, 102b, 105) comprises a wall (7a, 7b, (7c; 7d)) featuring an opening, adapted to cover the portion (101a, 101b) of the part to be treated so that the sealed space (26a, 26b, 26) is delimited by the wall (7a, 7b, (7c; 7d)) of the bath box (102a, 102b, 105) on one hand, and the portion (101a, 101b) of the part to treated on the other hand.
- Local surface treatment system according to claim 2, characterised in that the opening is surrounded by gaskets (8).
- Local surface treatment system according to one of the claims 1 to 3, characterised in that at least one bath box (102a, 102b, 105) comprises a temperature regulation device in the sealed space (26a, 26b, 26), said regulation device comprising heating means (12) and means (27) to measure the temperature.
- Local surface treatment system according to one of the claims 1 to 4, characterised in that at least one bath box (102a, 102b, 105) comprises the means (29) to stir the treatment product in the sealed space (26a, 26b, 26).
- Local surface treatment system according to one of the claims 1 to 5, characterised in that the aeronautical part to be treated is a large part.
- Local surface treatment system according to one of the claims 1 to 6, characterised in that it comprises a plurality of bath boxes (102a, 102b, 105) adapted to delimit a plurality of sealed spaces (26a, 26b, 26) between the plurality of bath boxes (102a, 102b, 105) and a plurality of portions of the part to be treated.
- Local surface treatment system according to one of the claims 1 to 7, characterised in that it comprises an electric generator (2) comprising a negative terminal connected to at least one bath box and a positive terminal connected to the part to be treated.
- Local surface treatment system according to one of the claims 1 to 8, characterised in that it comprises a filtration device (30) arranged on the controlled supply circuit.
- Local surface treatment method of an aeronautical part to be treated by means of a treatment system according to one of the claims 1 to 9, comprising a step (110) whereby at least one treatment product is applied to a portion of the part to be treated, characterised in that it comprises, before the application step (110):- a step (108) whereby a bath box is placed on the part to be treated, so as to delimit a sealed space between the bath box and the part to be treated,- a step (109) whereby the sealed space is supplied with at least one treatment product, said treatment product coming from one or several tanks, each containing a treatment product.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1460663A FR3027826B1 (en) | 2014-11-05 | 2014-11-05 | SYSTEM AND METHOD FOR LOCAL SURFACE TREATMENT |
PCT/FR2015/052977 WO2016071633A1 (en) | 2014-11-05 | 2015-11-04 | System and method for local surface treatment |
Publications (2)
Publication Number | Publication Date |
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EP3215280A1 EP3215280A1 (en) | 2017-09-13 |
EP3215280B1 true EP3215280B1 (en) | 2019-01-09 |
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Application Number | Title | Priority Date | Filing Date |
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EP15808702.3A Active EP3215280B1 (en) | 2014-11-05 | 2015-11-04 | System and method for local surface treatment |
Country Status (4)
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US (1) | US20180195191A1 (en) |
EP (1) | EP3215280B1 (en) |
FR (1) | FR3027826B1 (en) |
WO (1) | WO2016071633A1 (en) |
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NL2017127B1 (en) * | 2016-07-07 | 2018-01-15 | Patricia Martina Maria Van Wieringen | Dosing device for dosing a sealant for sealing a wall of a sewer, system provided with the dosing device, application of the dosing device, method for sealing a sewer and a sewer obtained by the method |
ES2816180T3 (en) | 2018-02-26 | 2021-03-31 | Cockerill Maintenance & Ingenierie Sa | Installation and localized surface treatment method for industrial parts |
DE102021214987A1 (en) * | 2021-12-23 | 2023-06-29 | Dürr Systems Ag | Treatment plant and method for treating workpieces |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3420101A1 (en) * | 1983-08-08 | 1985-11-28 | Siemens AG, 1000 Berlin und 8000 München | Device for the surface treatment of components |
US4750981A (en) * | 1986-09-30 | 1988-06-14 | The Boeing Company | Apparatus for electroplating limited surfaces on a workpiece |
DE29813977U1 (en) * | 1998-08-05 | 1998-11-26 | Behr Automotive GmbH, 73240 Wendlingen | Device for the surface coating of an interior fitting for vehicles and interior fitting manufactured by means of the device |
US6254760B1 (en) * | 1999-03-05 | 2001-07-03 | Applied Materials, Inc. | Electro-chemical deposition system and method |
US6203551B1 (en) * | 1999-10-04 | 2001-03-20 | Advanced Cardiovascular Systems, Inc. | Chamber for applying therapeutic substances to an implant device |
US6254921B1 (en) * | 1999-12-08 | 2001-07-03 | Surmodics, Inc. | Coating process and apparatus |
JP2005324114A (en) * | 2004-05-14 | 2005-11-24 | Yuushin Kk | Surface treatment tool and surface treatment method |
US9044774B2 (en) * | 2007-12-18 | 2015-06-02 | Intermolecular, Inc. | Vented combinatorial processing cell |
FR2971719B1 (en) * | 2011-02-22 | 2014-01-24 | Dassault Aviat | DEVICE FOR COATING A FLUID-PRODUCING OBJECT WITH AN ASSOCIATED DISTRIBUTION AND PROCESSING ASSEMBLY |
GB2491799A (en) * | 2011-03-03 | 2012-12-19 | S & T Systems Ltd | Locking of threaded fasteners |
TWI551725B (en) * | 2012-05-22 | 2016-10-01 | Baffle deposition device |
-
2014
- 2014-11-05 FR FR1460663A patent/FR3027826B1/en active Active
-
2015
- 2015-11-04 US US15/524,737 patent/US20180195191A1/en not_active Abandoned
- 2015-11-04 EP EP15808702.3A patent/EP3215280B1/en active Active
- 2015-11-04 WO PCT/FR2015/052977 patent/WO2016071633A1/en active Application Filing
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WO2016071633A1 (en) | 2016-05-12 |
FR3027826B1 (en) | 2018-11-02 |
US20180195191A1 (en) | 2018-07-12 |
FR3027826A1 (en) | 2016-05-06 |
EP3215280A1 (en) | 2017-09-13 |
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