WO2014023899A1 - Procédé de métallisation d'une pièce pour véhicule automobile - Google Patents
Procédé de métallisation d'une pièce pour véhicule automobile Download PDFInfo
- Publication number
- WO2014023899A1 WO2014023899A1 PCT/FR2013/051870 FR2013051870W WO2014023899A1 WO 2014023899 A1 WO2014023899 A1 WO 2014023899A1 FR 2013051870 W FR2013051870 W FR 2013051870W WO 2014023899 A1 WO2014023899 A1 WO 2014023899A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- projection
- activation solution
- solution
- recovered
- piece
- Prior art date
Links
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
Definitions
- the present invention relates to the metallization of a bodywork part for a motor vehicle, in particular a part comprising plastics material.
- This type of process is particularly called electroless metallization process. It is thus distinguished from the metallization implemented using an electric current, such as electroplating chrome plating, during which electrochemical deposition of chromium is performed. This chromium plating process is generally expensive and polluting.
- the metal salt spraying step also known as the spraying step, is generally preceded by a step of activating the surface of the part to be metallized, by spraying an activation solution.
- a number of solutions are projected onto the part, which are subsequently recovered with a view to their subsequent elimination.
- the purpose of the invention is in particular to reduce the costs and the environmental impact of the metallization process.
- the subject of the invention is a method of metallizing a surface of a first part for a motor vehicle, the metallization being non-electrolytic, comprising a step of applying a solution of metal salts to the surface, preceded by a step of projecting an activation solution on the surface, said first projection, the projection step taking place in a closed enclosure,
- the method further comprising the steps of:
- the remaining activation solution is recovered in the closed chamber after it has been sprayed.
- the recovered activation solution is used to project it again onto the surface of the first part or onto the surface of a second piece for a motor vehicle, in a step called second projection.
- the remaining activation solution can be recovered more easily, by flow or by runoff.
- the solution may in particular run off on walls of the enclosure or run off the surface of the part towards, for example, the bottom of the enclosure where it is recovered.
- the chamber may not be hermetically closed.
- the enclosure may include openings when little (or no) activating product reaches these openings and leaves the enclosure without being recovered.
- the remaining solution of activation solution is recovered at the bottom of the chamber, by gravity.
- the recovered solution can then be stored in a temporary storage tank before being used to project it back onto the workpiece or project it onto a second workpiece.
- the recovered solution can be projected again on the first piece of anterior manner, simultaneous or posterior to the projection on a second piece.
- the storage tank supplies at the same time in recovered solution several closed enclosures.
- the non-electrolytic metallization process generally comprises, before the projection of activating solution and metal salts, a preliminary step of depositing a varnish, also called “basecoat” or primary, thus making it possible to metallize on any type of part, in particular on a part comprising plastic material.
- the projection step of the activation solution can be followed by a rinsing step before the step of applying the metal salts.
- the projection of metal salts is preferably followed by a step of depositing a protective varnish, also called "topcoat”.
- activation solution or "activating product solution” is generally understood to mean a solution capable of modifying the state of the surface of the part so as to promote the initiation of an oxidation-reduction reaction and the hangs the metal particles projected later in the solution of metal salts.
- the activation solution can activate the surface of the part by deposit, reaction, grafting of an active product to promote the deposit resulting from the subsequent spraying of metal salts.
- the entire activation solution does not necessarily react with the surface of the room so that it is reusable, hence the recovery that can be implemented.
- the physical properties of the activation solution such as the viscosity or evaporation rate, remain substantially constant throughout the process, so that its recovery is facilitated, unlike a conventional solution of paint, which could be more or less dry during the process.
- metal salt solution is generally understood to mean a solution comprising oxidizing metal cations and a reducing solution.
- the metal cations and the reducing solution are projected by two nozzles of the same sprayer, which create two mists that meet so that a layer of metal is deposited on the surface of the room.
- the first or second part of a motor vehicle may be any part of the vehicle to which it is desired to give a metallized appearance, for example an air inlet grille, a rod, an optical outline, a hubcap, a bottom of crate, a protection strip, etc. It may be made of a thermoplastic or thermosetting or composite material.
- the activation solution projection step lasts a certain time, so that the step of recovering part of the activation solution "after its projection" can be simultaneous with the step projecting another part of the activation solution.
- the invention may further include one or more of the following features, taken alone or in combination.
- the recovery and second projection steps are repeated for a period of time corresponding to the lifetime of the activation solution.
- the life of the activation solution corresponds for example to its life taken from its preparation, that is to say its dilution from a concentrated solution. Indeed, an activation solution can degrade during its use, so that it loses its effectiveness and becomes no longer usable at after a while.
- the activation solution is reused during the time interval during which the solution is effective, that is to say during the period of time during which the active principle contained in the activation solution can react with the surface on which it is projected.
- an activation solution can be projected on more than two separate parts or two groups of separate parts, preferably more than ten parts or groups of parts.
- the time period can vary from a few hours to several days. For example, the period may vary from 2 hours to 10 days, preferably from 2 hours to 5 days.
- the recovery step of the activation solution is implemented continuously during the different stages of projection.
- the activation solution is recovered continuously in the closed chamber, during and between the projection stages, in particular during and between the projection steps on different parts.
- the recovery step of the activation solution is implemented punctually after each projection.
- the recovery is stopped after a first recovery step, then is resumed later, at the end or during a second projection, especially at the end or during a projection on another room.
- the method comprises, before the second projection step, a test step on the recovered activation solution to determine whether it can be used for the second projection. It can thus be verified that the activation solution comprises enough active ingredient to treat a second surface and can advantageously optimize the use of the activation solution.
- the new activation solution is also sprayed during the second projection.
- the term "new activation solution” means the activation solution that has not yet been projected onto a surface. This mixture of the new and recovered activation solutions can take place in the temporary storage tank, in particular when the reservoir contains new activation solution and the recovered activation solution is recovered in the same reservoir. after his first projection. It is also possible to add, to the recovered activation solution, a quantity of new activation solution, in particular to guarantee a good reactivity of the activation solution with the surface to be treated.
- the activation solution comprises more than 90% by weight of solvent, preferably more than 95%, even more preferably more than 99%.
- the activation solution is therefore weakly concentrated and its viscosity depends mainly on the solvent used.
- the solvent is water.
- the solution is mainly composed of water, its viscosity is close to the viscosity of the water, about 0.001 Pa.s (Pascal second).
- the activation solution is very fluid and flows to the bottom of the enclosure where it can be collected easily. In this case, the recovery of the activation solution is particularly interesting.
- the method comprises, before the second projection step, a step of treating the recovered activation solution before its second projection.
- This treatment may be, for example, a filtration step of the solution to remove solid particles from inside or outside the enclosure, or the degradation of products. Indeed, these solid particles can give rise to defects in the part after metallization.
- the first and second projection stages are implemented by a fixed mounted sprayer in the closed chamber, each part being movable in the closed chamber. It is understood that these steps can be implemented by several sprayers mounted fixed in the closed chamber.
- the closed enclosure may be a container comprising fixed projection means and a turntable on which the one or more pieces to be metallized have been deposited, the container being closed for example by a removable cover before starting the step of projection of the activation solution.
- the closed enclosure may also be a container or a room comprising a manipulator robot, located inside or outside the enclosure, which has the part or parts to be treated under the fixed spray means. The manipulation can also be performed by an operator.
- the first and second projection stages are implemented by a sprayer mounted movably in the closed chamber, the part being moved for example by a conveyor in front of the sprayers.
- a manipulator robot removes the first piece and deposits the second piece in the closed chamber.
- FIG. 1 is a schematic sectional view of a first embodiment of a device for implementing certain steps of the metallization process
- FIG. 2 is a perspective view of another embodiment of a device allowing the implementation of certain steps of the method of metallization.
- FIG. 1 shows a first embodiment of a device 10 for projecting an activation solution 12 onto a surface of a part 14 for a motor vehicle, with a view to metallization of this surface.
- the piece 14 may designate a first, a second or an n-th piece as presented above, or a first, second or n-th group of pieces.
- This piece 14 may be for example a grid, a ring, an optical outline, a handle, a hubcap.
- the device 10 comprises an enclosure 16 having an opening 18 and closing means 20 of the opening 18, such as a cover that can take an open or closed position.
- the enclosure 16 also comprises a turntable 22, mounted movably in the enclosure, disposed in the lower part of the enclosure 16 and intended to receive the part 14 to be metallized, as well as means 24 for projecting the solution. activation on the part 14 when it is positioned on the plate 22.
- the projection means 24, also called sprayer 24, are fixedly mounted in the chamber 16.
- the chamber may have a volume of between 10 L (liters) and 2 m 3 .
- the projection means 24 comprise, in this embodiment, a tube 26 having orifices 28, in this case four orifices 28, by means of which the activation solution can be projected onto the part 14. It will be understood that the means of projection 24 are shown here schematically and they may include including means for pressurizing the activation solution 12 to project it in the form of fine droplets of liquid.
- the device 10 also comprises a reservoir 30 for temporarily storing the activation solution 12.
- the reservoir 30 supplies the projection means 24 in activation solution 12 through a first channel 32.
- the activation solution is for example pumped in the tank 30 by means of a first pump.
- the chamber 16 is also connected to the reservoir 30 via a second pipe 34, which makes it possible to recover the activation solution projected onto the part 14 after run-off from the projections on the walls of the enclosure 16 and / or after trickling of the solution activation on the surface of the workpiece 14.
- the activation solution can be recovered and directed to the reservoir 30 by gravity or by means of a pump.
- the device 10 furthermore comprises, in this example, means 36 for processing the recovered activation solution.
- processing means comprise, for example, filtration means for the activation solution. They are positioned between the enclosure 16 and the tank 30. However, this location is just given as an example.
- the reservoir 30 may optionally supply activation solution several pregnant 16, and also recover the activation solutions projected in several different speakers 16.
- the device 10 further comprises a manipulator robot 40, for removing the part 14 and depositing in the chamber 16 another piece, identical or different. It may, however, include another means of handling a robot, such as a conveyor. The manipulation can also be performed by an operator.
- a manipulator robot 40 for removing the part 14 and depositing in the chamber 16 another piece, identical or different. It may, however, include another means of handling a robot, such as a conveyor. The manipulation can also be performed by an operator.
- the activation solution is a solution capable of modifying the state of the surface of the part 14 so as to favor the hangs on the metal particles projected later.
- the activating solution may comprise stannous chloride.
- the activating solution comprises more than 99% by weight of water. There is therefore an aqueous activation solution having a viscosity close to that of water, that is to say about 0.001 Pa.s.
- the closure means 20 of the opening 18 of the enclosure 16, in this case a door 20, are moved so that the opening 18 is accessible.
- the manipulator robot 40 deposits the part 14 of which at least one surface is to be metallized, acting as a first part, on the turntable 22 of the enclosure 16.
- the door 20 is then closed, the enclosure 16 is thus closed.
- the new activation solution that is to say having not yet been projected, is projected on the piece 14.
- a first projection of the activation solution is thus carried out on the first 14.
- the turntable 22 is rotated so that the part 14 is movable in the enclosure 16.
- the activation solution being very fluid, it flows easily to the bottom of the chamber 16.
- the activation solution trickles in particular on the walls of the chamber 16, on the part 14 and on the turntable 22. Once at the bottom of the chamber 16, it is recovered and sent to the tank 30.
- the recovered solution is treated by the treatment means 36.
- these processing means 36 comprise a filter which makes it possible to eliminate solid particles, such as dust, which the solution of Recovered activation might contain.
- the recovered activation solution is stored again in the tank 30. The recovered activation solution is thus ready to be used for a new projection on the same piece 14 or a projection on another piece 14, separate from the first.
- the first projection step of the activation solution is completed.
- this step is relatively short, it is sufficient that the entire surface to be metallized of the part is wetted by the activation solution.
- the door 20 of the enclosure 16 is opened, the manipulator robot 40 removes the first part 14 whose surface has been activated and which will subsequently be coated with metal salts and depositing a second piece 14 on the turntable 22.
- the door 22 is closed.
- the second projection is then carried out by spraying the activation solution recovered on the second part 14.
- the activation solution contained in the reservoir is a mixture of new activation solution and recovered activation solution.
- the first projection step can be performed with the solution having been recovered beforehand, since the projection is performed on a part and the solution is recovered to be projected on the same part or on a second part.
- the activation solution recovered after projection onto a first part 14 in an enclosure 16 can be used to be projected into another enclosure 16 and thus onto a second part 14.
- the recovery step of the activation solution can be implemented continuously or punctually after each projection.
- part 14 There is shown a part 14, but one could also consider having on the plate 22 a support carrying several parts to be treated, so a group of parts.
- the support can carry four pieces. We understand that this number is not limiting.
- the part 14 is manipulated, that is to say deposited and removed, in the chamber 16 by a manipulator robot 40.
- the part 14 could be manipulated by any other suitable means, even manually.
- the recovery and second projection steps can be repeated for a period of time corresponding to the lifetime of the activation solution. After a certain period of time, which depends on the activation solution used, it no longer makes it possible to activate the surface on which it is projected or it always allows to activate the surface but the projection time of the solution must be increased, it is then advisable to change the activation solution, that is to say to no longer project the solution contained in the reservoir 30.
- the tank 30 is then emptied and a new quantity of activating solution 12 is prepared and stored in the tank 30.
- the enclosure 50 forms a spray booth comprising a manipulator robot 40 disposed inside the booth.
- the size of this cabin varies depending on the size of the robot and the parts 14 to be treated. For example, its volume is between 10 m 3 to 100 m 3 .
- the cabin comprises a floor 52 and side walls 54. It may also comprise an upper wall 56.
- the floor 52, the side walls 54 and the upper wall 56 are partially represented in order to present the enclosure 50 in perspective.
- the enclosure 50 comprises three sprayers 58, 60, 62 fixedly mounted in the enclosure 50.
- This enclosure 50 may include openings, in particular to take the part 14 to be treated and deposit it after treatment. However, it is described as closed enclosure since these openings are sufficiently far from the sprayers 58, 60, 62 and that the solutions projected by these sprayers do not exit through these openings.
- the robot 40 carries a support 64, or gripper 64, on which are fixed three parts 14 to be metallized, forming a group of parts.
- the enclosure 50 also comprises an opening 66 for recovering the activation solution.
- a given amount of activating solution 12 is prepared and stored in the reservoir 30.
- the robot 40 takes the support 64 on a display stand. This display can be positioned in or out of the enclosure 50, facing an opening of the enclosure 50 sufficiently far from the sprayers. The robot will then present the parts 14 under the sprayers 58, 50, 62 which are connected to the reservoir 30. The first spray step can be performed on the three parts 14 at the same time.
- the activation solution flows on the parts and on the side walls 54 of the enclosure 50, towards the floor 52 where it is collected towards the opening 66.
- the recovered activation solution is, as in the first embodiment stored in the reservoir 30 before being used for a second projection.
- the robot 40 then deposits the support 64 on the display and takes a second support 64 which it will present under the sprayers 58, 60, 62 to carry out the second spraying step.
- the different process variants that have been described can be similarly applied.
- the recovery step of the activation solution can be carried out continuously or discontinuously, the recovery and second projection steps can be repeated for a period of time corresponding to the service life of the activation solution, etc.
- the sprayers 58, 60, 62 may not project the same solution.
- the first sprayer 58 projects the activation solution
- the second sprayer 60 projects a rinsing solution
- the third sprayer 62 projects a solution of metal salts.
- recovery of the activation solution can be considered in isolation from other solutions.
- the closing means 20 may comprise a door, a hatch, a cover. Note that in the second embodiment, they are not necessary.
- the solvent used for the activating solution is water but one could also consider using an alcohol.
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112015002411A BR112015002411A2 (pt) | 2012-08-06 | 2013-08-01 | processo de metalização de uma superfície de uma primeira peça para veículo automotivo |
ES13756653.5T ES2611934T3 (es) | 2012-08-06 | 2013-08-01 | Procedimiento de metalización de una pieza para vehículo automóvil |
EP13756653.5A EP2880198B1 (fr) | 2012-08-06 | 2013-08-01 | Procédé de métallisation d'une pièce pour véhicule automobile |
CN201380040608.0A CN104704143B (zh) | 2012-08-06 | 2013-08-01 | 对机动车用的部件进行镀金属的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1257642 | 2012-08-06 | ||
FR1257642A FR2994196B1 (fr) | 2012-08-06 | 2012-08-06 | Procede de metallisation d'une piece pour vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014023899A1 true WO2014023899A1 (fr) | 2014-02-13 |
Family
ID=47191915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2013/051870 WO2014023899A1 (fr) | 2012-08-06 | 2013-08-01 | Procédé de métallisation d'une pièce pour véhicule automobile |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2880198B1 (fr) |
CN (1) | CN104704143B (fr) |
BR (1) | BR112015002411A2 (fr) |
ES (1) | ES2611934T3 (fr) |
FR (1) | FR2994196B1 (fr) |
WO (1) | WO2014023899A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108728831A (zh) * | 2018-06-04 | 2018-11-02 | 安徽天宇磁业股份有限公司 | 一种用于钕铁硼永磁材料的镀膜装置及其防护工艺 |
CN112044631A (zh) * | 2020-09-10 | 2020-12-08 | 合肥常青机械股份有限公司 | 一种汽车车桥均匀喷涂装置 |
CN113477443B (zh) * | 2021-08-11 | 2022-06-17 | 深圳市埔洋家居用品有限责任公司 | 一种工艺礼品表面修复液便携喷涂设备 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010012810A2 (fr) * | 2008-07-30 | 2010-02-04 | Jet Metal Technologies | Procede non electrolytique de metallisation en ligne de substrats par projection avec traitement de surface prealable et dispositif pour la mise en oeuvre du procede |
FR2954716A1 (fr) * | 2009-12-29 | 2011-07-01 | Plastic Omnium Cie | Procede de traitement surfacique de pieces de grandes dimensions, prehenseur de pieces adapte pour la mise en oeuvre d'un tel procede, utilisation de ce prehenseur et cabine de traitement |
-
2012
- 2012-08-06 FR FR1257642A patent/FR2994196B1/fr active Active
-
2013
- 2013-08-01 ES ES13756653.5T patent/ES2611934T3/es active Active
- 2013-08-01 BR BR112015002411A patent/BR112015002411A2/pt not_active Application Discontinuation
- 2013-08-01 CN CN201380040608.0A patent/CN104704143B/zh not_active Expired - Fee Related
- 2013-08-01 WO PCT/FR2013/051870 patent/WO2014023899A1/fr active Application Filing
- 2013-08-01 EP EP13756653.5A patent/EP2880198B1/fr not_active Not-in-force
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010012810A2 (fr) * | 2008-07-30 | 2010-02-04 | Jet Metal Technologies | Procede non electrolytique de metallisation en ligne de substrats par projection avec traitement de surface prealable et dispositif pour la mise en oeuvre du procede |
FR2954716A1 (fr) * | 2009-12-29 | 2011-07-01 | Plastic Omnium Cie | Procede de traitement surfacique de pieces de grandes dimensions, prehenseur de pieces adapte pour la mise en oeuvre d'un tel procede, utilisation de ce prehenseur et cabine de traitement |
Also Published As
Publication number | Publication date |
---|---|
CN104704143A (zh) | 2015-06-10 |
BR112015002411A2 (pt) | 2017-07-04 |
ES2611934T3 (es) | 2017-05-11 |
EP2880198B1 (fr) | 2016-10-26 |
FR2994196B1 (fr) | 2014-08-22 |
CN104704143B (zh) | 2017-04-05 |
FR2994196A1 (fr) | 2014-02-07 |
EP2880198A1 (fr) | 2015-06-10 |
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