EP3414020A1 - Procédé et dispositif pour recouvrir des parois intérieures d'une cavité avec une couche protectrice constituée de cire anticorrosion ou d'un agent anticorrosion - Google Patents

Procédé et dispositif pour recouvrir des parois intérieures d'une cavité avec une couche protectrice constituée de cire anticorrosion ou d'un agent anticorrosion

Info

Publication number
EP3414020A1
EP3414020A1 EP17703199.4A EP17703199A EP3414020A1 EP 3414020 A1 EP3414020 A1 EP 3414020A1 EP 17703199 A EP17703199 A EP 17703199A EP 3414020 A1 EP3414020 A1 EP 3414020A1
Authority
EP
European Patent Office
Prior art keywords
mist
cavity
protective agent
corrosion
outlet opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17703199.4A
Other languages
German (de)
English (en)
Other versions
EP3414020B1 (fr
Inventor
Bernhard Woll
Marc Engelhart
Fredy Doll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IPR Intelligente Peripherien fuer Roboter GmbH
Original Assignee
IPR Intelligente Peripherien fuer Roboter GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IPR Intelligente Peripherien fuer Roboter GmbH filed Critical IPR Intelligente Peripherien fuer Roboter GmbH
Publication of EP3414020A1 publication Critical patent/EP3414020A1/fr
Application granted granted Critical
Publication of EP3414020B1 publication Critical patent/EP3414020B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B05B13/06—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 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B05B12/06—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for effecting pulsating flow
    • 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
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • B05D2259/00—Applying the material to the internal surface of hollow articles other than tubes
    • 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
    • B05D2501/00—Varnish or unspecified clear coat
    • B05D2501/10—Wax
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies

Definitions

  • the invention relates to a method for covering inner walls of a cavity with a protective layer of corrosion protection wax or a wax-based corrosion protection agent according to the preamble of claim 1, in particular for use on vehicle bodies and components for vehicle bodies.
  • the invention further relates to a system for carrying out the method according to the preamble of claim 1.
  • Generic methods are used in vehicle construction to protect body parts and in particular cavities of bodies and their attachments such as flaps, doors and the like against environmental influences. Typically, this is done by either applying corrosion protection wax to the surfaces concerned by spraying or by flooding the cavities with anticorrosion wax and then removing excess protective wax to cover the surfaces concerned.
  • the object of the invention is to provide a technically uncomplicated method and a system provided for this purpose, by means of which a reliable covering of inner surfaces of a cavity is possible with low use of protective agent.
  • Corrosion protection wax or wax-based corrosion protection agent is brought into a misted form (protective agent mist) by means of a mist generator and fed through an outlet opening to the cavity to be preserved.
  • the protective agent mist is deposited on the inner walls of the cavity and here forms a corrosion protection agent layer.
  • the corrosion inhibitor used in the method according to the invention can be formed as a corrosion protection wax and as such has a wax content (mineral oil-based wax / paraffin) of at least 50 wt .-%.
  • wax-based corrosion inhibitors having a lower wax content of at least 5% by weight and preferably between 5% by weight and 15% by weight are also usable.
  • Such corrosion inhibitors may in particular also contain a proportion of between 15% by weight and 30% by weight of a polyester resin. This gives the spent protective layer after drying through a high thermal stability.
  • the term of the corrosion inhibitor includes both classic corrosion protection wax with a high wax content and corrosion inhibitors with a lower wax content.
  • a mist atmosphere of corrosion inhibitor and gas is generated or such a mist atmosphere is supplied to the cavity.
  • This consists of gas, especially air, as well as the finest droplets of the corrosion inhibitor. These are sufficiently small atomized to be hoverable in the surrounding air.
  • the average droplet size of the droplets of the anticorrosion agent in the mist is for this purpose preferably ⁇ 60 ⁇ , in particular preferably ⁇ 30 ⁇ or even ⁇ on average.
  • the production of such a protective agent mist takes place by means of a suitable mist generator.
  • This may, for example, be a one-substance nozzle to which the corrosive agent is supplied at high pressures. This will be explained in more detail later.
  • a two-fluid nozzle is considered advantageous, since at lower pressures also very small droplets can be generated.
  • All mean droplet diameters referred to in this document are number average diameters, and therefore refer to the sum of the droplet diameters divided by the number of droplets.
  • mist is also known as unwanted side effect from wax spraying, as can be seen for example from DE 102009052089 A1.
  • the discharge process for this purpose is such, in particular by the choice of the nozzle used and the pressure at which the corrosion inhibitor and possibly compressed air is supplied, that at least 50%, preferably at least 80%, of the generated droplets has a size to does not deviate more than 20% from the stated mean droplet size.
  • the mist atmosphere of the protective agent mist which is introduced according to the invention for the purpose of microwavenbe- coating in the cavity, unlike spraying the corrosion inhibitor for the vast majority not directly on the walls of the cavity down, but initially distributed in the cavity and then beats also on such surfaces down, which would not be directly accessible from the outlet opening by spraying.
  • the size of the droplets and the exit velocity and possibly also the influence of the resulting mist are preferably chosen so that at least 50% of the volume flow of the introduced protective agent takes 5 seconds or more to produce this mist atmosphere until the droplets have deposited on the walls ,
  • the fog atmosphere thus remains time to distribute itself largely homogeneously in the cavity.
  • the type of precipitate of the protective agent and the formation of layers can be influenced. Furthermore, it is also possible to influence the precipitate by electrostatic charging of the protective means before or during the discharge and / or charge of the walls. Depending on the nature of the protective agent, the solidification can be effected by an elevated temperature and a reduced temperature of the protective agent. Depending on the anticorrosion agent used, chemical drying, radiation drying or drying by air flow is also possible.
  • the protective agent mist can remain at the conclusion of the process in the cavity or be sucked out of it.
  • the wax preservatives commonly used today for spraying or flooding in vehicles already come into question.
  • the corrosion protection wax with the brand name Eftec Efcoat WH 320 AI called, which can be used here.
  • Further examples of anticorrosive agents that can be discharged by means of the method according to the invention are the anticorrosion agents available under the brand names Anticorit CPX 3373 LV and Anticorit DS 329 DE.
  • Anticorit CPX 3373 is a wax-based corrosion inhibitor with a wax content of about 5 to 15 wt .-% and a polyester resin as an additive in an amount between 15 wt .-% and 30 wt .-%.
  • such wax-based corrosion protection agents have proven to be particularly suitable for nebulization.
  • a corrosion inhibitor further comprises a filler, in particular in a proportion of between 15 wt .-% and 25 wt .-% and / or additives such as anti-corrosion additives in a proportion of 10 wt .-% to 20 wt .-%.
  • the viscosity of the corrosion inhibitor used is preferably below 750 mPas, in particular preferably below 600 mPas. Such low viscosity corrosion inhibitors have been found to be advantageous to produce the desired protective agent mist.
  • the droplets of the protective agent mist can emerge from the outlet opening at a speed ⁇ 10 m / s, in particular ⁇ 5 m / s, preferably 2 ⁇ m / s, in particular preferably ⁇ 0.5 m / s.
  • the formation of a mist atmosphere is favored. Too high speeds can cause that, despite the small droplet size too large a proportion of the droplets hits directly on a flat wall of the cavity and thus can no longer contribute to the formation of a mist atmosphere.
  • the speed of the discharged droplets is not completely uniform.
  • the two-fluid nozzles preferably used for the generation of mist for example a nozzle of the type Miniquest from the company Düsen-Schlick GmbH from Untersiemau / Coburg, produce droplets of different speeds. Usually, in a center of the resulting cloud of fog, the speed is highest.
  • the speed values given above do not take into account these particularly fast droplets. They refer to those 80% of the volumetric flow rate produced by the slowest droplets.
  • a gas is supplied to the cavity at a deviating second introduction point in order to influence the protective agent mist in the cavity with respect to its flow direction and / or by the speed of the protective agent mist to reduce.
  • This gas which may be in particular air, is preferably supplied through a second opening in walls of the cavity, wherein this opening is in particular preferably arranged at a location opposite to the mist generator of the cavity.
  • the purpose of the supply of gas is, in particular, to produce a type of gas or air cushion capable of preventing the direct impact of droplets of the protective agent mist on one of the walls of the cavity.
  • a backpressure counter to the spread of the droplets is produced which slows the droplets to become part of a mist atmosphere.
  • a particularly low volume flow in the cavity is considered to be particularly advantageous, in particular a volume flow of the corrosion inhibitor of less than 200 g / minute, preferably less than 100 g / minute, particularly preferably less than 50 g / minute.
  • a volume flow of the corrosion inhibitor of less than 200 g / minute, preferably less than 100 g / minute, particularly preferably less than 50 g / minute.
  • the supply of the protective agent mist can take place at several points or at changing points within the cavity to be preserved.
  • the supply of the protective agent mist can also be effected by means of a plurality of mist generators, which are arranged at different locations within the cavity to be preserved and / or are arranged in different directions relative to the cavity to be preserved.
  • the introduction of the protective agent mist may be sufficient at only one point of the cavity, since the protective agent mist is distributed in the cavity, a particularly good and rapid distribution of the mist can be promoted by said additional measures.
  • the mist atmosphere can be created from both ends.
  • a movable within the cavity outlet opening which discharges at different locations, with only one outlet opening a fairly homogeneous fog atmosphere can be created.
  • a plurality of outlet openings which point in different directions, it is particularly well ensured, in particular in conjunction with a common movement of these outlet openings through the cavity, that the mist atmosphere also reaches hard-to-reach surface areas.
  • the supply of protective agent mist over several mist generators can be done for example by using a two-fluid nozzle in combination with the above-mentioned supply of gas.
  • the protective agent mist is distributed basically independently in the cavity largely homogeneous. However, since short cycle times are desired depending on the application, it may be particularly advantageous to selectively move the protective agent mist through a local overpressure or negative pressure in the cavity. This can be done for example by the introduction or suction of air at an opening of the cavity, either by a separate from the outlet pressure opening of the system for cavity preservation or through the outlet opening itself. By periodically repeated pressure increases or decreases can cyclical movement of the protective agent mist in Cavity are generated, through which a particularly favorable precipitation behavior of the protective agent is achieved on the surface.
  • a distribution of the droplets of the protective agent mist can be positively influenced if the introduction takes place in a pulsed manner.
  • This is understood to mean that the parameters of the generation of mist by the at least one mist generator change repeatedly.
  • the pressure of the air supplied to the mist generator could periodically fluctuate.
  • the average frequency of the pulsed operation is preferably between 0.1 Hz and 5 Hz.
  • mist generators which operate in such a way that alternately a first of the two mist generators and a second of the two mist generators discharge the relatively larger volume flow.
  • two spaced-apart and separate controllable mist generators are accordingly provided which, in exchange, discharge the respective larger volume flow of anticorrosive agent. This also makes it possible to generate a periodically recurring movement of the mist, which causes a quick and homogeneous distribution of the mist.
  • a typical workpiece, which is protected against corrosion by the methods according to the invention, is the partial area of a body with an elongate cavity.
  • the protective mist it is possible to allow the protective mist to escape through the outlet opening in alignment with the main extension direction of the cavity.
  • the protective mist can also escape in a direction out of the outlet opening, which is angled relative to the main extension direction of such a cavity.
  • a similar effect can be achieved by providing an influence after exiting the mist through the outlet opening.
  • the protective agent mist can be selectively influenced after leaving the outlet opening with regard to its direction of movement, in particular by supplying air from different air nozzles from the outlet opening. By their mutually angled orientation these air nozzles are also able to effect such a helical movement of the mist atmosphere.
  • Fog nozzles are already known from other areas of the prior art.
  • a possible embodiment provides that only the anticorrosive agent is pressurized and is atomized through a narrow single-fluid nozzle.
  • the supply of the liquid corrosion inhibitor is in this case preferably at a pressure of at least 20 bar, more preferably at least 60 bar. Of particular advantage are even higher pressures, in particular from about 100 bar. Although, by clearly exceeding this value, the nebulization can be positively influenced. Beyond 120 bar, however, the expense of handling the protective agent before discharge is so great that it should usually be disregarded.
  • An alternative embodiment provides that a mixing of anticorrosion agent and air, which are each pressurized, takes place before or at the outlet of the protective agent mist.
  • the pressurized air ruptures the liquid supplied corrosion inhibitor and thereby generates the mist. It has been found that this technique allows fog generation with sufficiently small droplet size even at comparatively low pressures. Thus, in this case it is preferable to work with a supply overpressure of between 1 bar and 3 bar for the anticorrosive agent and between 1 bar and 5 bar for the air. Due to the low pressures, the total cost of the process is lower than when using single-fluid nozzles, where higher pressures are needed.
  • the two-fluid nozzle is supplied with air in such a way that it is accelerated to more than 100 m / s before discharge, ideally to about 250 m / s.
  • the mentioned pressures and speeds ensures a very fine atomization. It can produce droplet sizes with a mean droplet diameter of 10 ⁇ or less, which is considered to be ideal for the formation of a quiet fog atmosphere in the cavity.
  • the fog that can be generated thereby forms a fine mist atmosphere, which is reflected in the form of a thin and very homogeneous protective layer on the walls of the cavity.
  • mist generation provides a high-frequency oscillating actuator, such as a piezoelectric actuator or another form of ultrasonic atomizer.
  • mist generators and outlet openings may additionally be provided that they have a rotatable component, so that the outlet openings is during the exit of the corrosion protection agent in a rotational movement, which serves the homogeneous distribution of the corrosion inhibitor.
  • the outlet opening may be connected upstream of a mist production chamber.
  • the mist generator can be designed to generate the protective agent mist in the mist production chamber. It may be provided for conveying the protection agent spray to the outlet conveyor.
  • the upstream mist production chamber serves to generate a homogeneous mist even before introduction into the cavity to be preserved.
  • a conveyor such as a pump for conveying the protection agent mist or to generate an overpressure in the mist production chamber, this mist is supplied in the homogenized form of the cavity.
  • the method may find application for supplying the protective agent mist in a cavity between walls of a double-walled hollow body. It may also find application for supplying the protective agent mist in a cavity, the inner walls are covered at least partially by other wall sections, starting from the positioning of the outlet opening within the cavity. Even surfaces of curved or angled cavities are to be provided by means of the described method advantageously with corrosion inhibitors. In particular, in such designs can be achieved by the protective agent mist better results than by spraying protective wax.
  • the system has a working position at which a workpiece with a cavity to be preserved can be positioned. It has a supply device for supplying a corrosion inhibitor in the cavity.
  • the supply device has a mist generator with outlet opening which can be positioned on or in the cavity to be preserved in such a way that the corrosion protection agent can be introduced into the cavity in atomized form (protective agent mist).
  • the system may have air nozzles for introducing air for movement of the generated protection agent mist within the cavity.
  • the system may have at least one pressure generator, by means of which in a partial region of the cavity a negative pressure or an overpressure can be generated.
  • the pressure generator may be provided with a control device, is generated by the periodically changing pressure within the cavity.
  • the system is designed to produce a protective agent mist of the type described above. Furthermore, the system may have further to the described method as well as in connection with the embodiments mentioned components.
  • FIGS. 1 and 2 show an exemplary workpiece with a cavity whose surfaces are to be provided with anticorrosion agent.
  • FIG. 3 shows the introduction of atomized corrosion protection agent into the cavity through an outlet opening at an end face of the workpiece.
  • Fig. 4 shows the cavity after the anti-corrosion agent has deposited on the walls.
  • Fig. 5 shows a possible structure of a mist generator in the form of a mist nozzle, through which the corrosion inhibitor can be introduced and is thereby atomized to mist.
  • Fig. 6 shows a variant in which the mist discharge is improved by movement of the outlet opening.
  • FIGS. 7a and 7b show a variant in which a movement of the protective agent mist is achieved by targeted generation of overpressure and / or negative pressure in the hollow body.
  • FIG. 10 shows a variant in which the generation of mist takes place in a mist production chamber not belonging to the workpiece and the mist produced is only subsequently supplied to the cavity of the workpiece.
  • FIG. 1 and 2 show an exemplary workpiece 10, which may be, for example, a portion of a sill of a motor vehicle.
  • FIG. 1 shows a sectional view of As can be seen, a cavity 12 of this sill is limited not only by a cylindrical outer wall 20, but also by partition plates 22.
  • the aim of the method described here is to cover the surfaces within the cavity with corrosion protection wax or wax-based corrosion inhibitor.
  • said partition plates 22 make it impossible to reach all surfaces starting from an end face region 14 of the cavity 12 by spraying anti-corrosion agent.
  • FIG. 3 shows how, in the method according to the invention, an applicator 30 with a mist nozzle (not shown in the FIGURE) with an outlet opening 32 is inserted into the cavity 12 at the end.
  • the protective agent mist 40 is introduced into the cavity 12.
  • the protective agent mist 40 consists of fine droplets with a mean diameter of less than 60 ⁇ .
  • the protective agent mist 40 is distributed within the cavity 12 and is deposited on the surfaces of the outer wall 20 and the partition plates 22 down.
  • the introduced mist is to be distinguished from the spraying, which is already known in the field of cavity preservation.
  • the mist generation according to the invention and the known spraying agree that the liquid cavity preservative in the form of small droplets, which are introduced into the cavity.
  • the average droplet diameter is smaller, preferably less than 30 ⁇ , particularly preferably less than 10 ⁇ , and that the droplets at least for the most part do not strike directly on a wall of the hollow body and remain there, but a mist atmosphere form within the hollow body, which moves only very slowly within the hollow body.
  • the vast majority of the cavity preservative introduced into the cavity is still not in wall contact for 5 seconds after insertion.
  • FIG. 4 shows the cavity with a protective agent layer 50, which has deposited on the walls.
  • a protective agent layer 50 in areas 52, which would not have been reached directly from the outlet opening 32 by spraying, but only by the tendency of the protective agent mist 40 to homogeneously distribute in the cavity 12 and precipitate on the surfaces.
  • FIG. 5 shows by way of example a single-substance nozzle forming the mist generator 31. This can be provided at the end in the applicator 30. It has a thin nozzle channel 34, the opening of which defines the outlet opening 32, wherein for the purpose of tearing the corrosion protection agent into fine droplets, a sharp-edged design is provided at edges 36 of this outlet opening 32.
  • the anticorrosion agent is supplied through a supply channel 38 under high pressure. The higher the pressure, the finer the resulting droplets of the corrosion inhibitor. It is particularly advantageous if the corrosion protection agent in the channel 38 has a pressure between 80 and 120 bar.
  • Figure 6 shows again, similar to Figure 3, the introduction of the corrosion inhibitor in the cavity.
  • the peculiarity lies in the fact that in the manner illustrated by the arrow 2, the outlet opening 32 is displaced within the cavity.
  • an even more homogeneous distribution of the mist can be effected.
  • the required time can be shortened, which it takes until the mist has been homogeneously distributed. This serves to achieve short cycle times.
  • pressure channels 70, 72 are respectively connected to the two opposite end regions 14, 16 of the cavity 12. These make it possible to specifically create an overpressure or a negative pressure in the areas 14, 16. In this way, in turn, the cloud of mist 40 can be selectively moved back and forth within the cavity 12, as is illustrated by the arrow 4a, 4b. In particular, the complete coverage of the bulkhead plates 22 with anticorrosion agent is thereby promoted.
  • the pressure channel 72 on the opposite side of the nozzle may also be advantageous already during the introduction of the cloud of mist, since it allows to create by introducing mist droplets through the applicator 30 at the same time introducing air to the pressure channel 72 an air cushion, which prevents that an excessive proportion of the droplets, due to their exit velocity, is deposited directly on a wall of the cavity 12.
  • FIG. 8 shows a design in which, in addition to the applicator 30, two air nozzles 60 are introduced in the end region of the cavity, these air nozzles each defining an exit direction of the air which does not extend only in the main extension direction 1 of the cavity 12, but in each case in a clockwise or counterclockwise direction both are angled counterclockwise.
  • a helical twist in the mist 40 can be generated, which is a kind of a kind of screw the mist causes in the cavity and thereby in turn favors the coverage of difficult to access areas.
  • Figure 9 shows that similar can also be achieved in that the mist generator itself has two outlet openings 32a, 32b, which are angled in opposite directions in order to produce the desired twist can.
  • the applicator 30 can rotate as a whole.
  • the embodiment according to FIG. 10 has a clear difference.
  • a fog generating chamber 80 belonging to the plant and not to the workpiece is provided, into which the protective agent mist 40 is produced by means of a mist nozzle 31. From here, the mist is fed through a channel 90 to the actual cavity. This can be done via a pump 92 or for example, in addition to the protection agent mist 40 via a separate channel, an overpressure in the mist production chamber 80 is caused, which pushes the protection agent mist 40 through the channel 90 into the workpiece.
  • Fig. 11 shows a further embodiment in which, unlike the preceding embodiments, at two ends of each with a protective agent layer cavity, a respective mist generator 31A, 31B are provided, which are each designed as dual-fluid mist nozzles.
  • these may be nozzles of the type Mod. 970/0 S4 of the company Düsen-Schlick GmbH from Untersiemau / Coburg. These nozzles are inserted in the case of the embodiment of FIG. 11 through lateral openings of the workpiece.
  • the mist generators 31A, 31B are supplied with corrosion inhibitors and air via lines 33A, 33B. Only a small volume flow of corrosion inhibitor of about 50 ml / min is supplied. The actual atomization at the outlet nozzle of the mist generator 31A, 31B takes place with the air flowing in at a speed of about 250 m / s and at inflow pressures of 2 bar in the case of air and 3 bar in the case of the corrosion inhibitor. The result is the generation of a mist with an average droplet size of about 10 ⁇ .
  • the cloud of fog escapes from the mist generator in the form of a cone, with the velocity in the center of this cone being about 16 m / s and dropping rapidly to less than 10 m / s outwards.
  • the introduction can take place, for example, in the phase of 2 to 3 seconds in length, followed by a short phase of 1 to 3 seconds with deactivated mist generator.
  • FIGS. 14 to 16 illustrate this with an example with two mist generators 31A, 31B.
  • mist is generated by the fog generator 31B shown in the figures, as shown in FIG. 14.
  • the mist production stops here and the mist generator 31A shown in the figures releases mist of anti-corrosion agent.
  • the two fog clouds brake each other.
  • the discharge is in turn continued with a discharge operation on the left mist generator 31B. It gradually sets the desired dense fog cloud 40 of the finest droplets, which then settle on the walls in the manner already described.
  • mist generators are illustrated in the embodiment of FIGS. 14 to 16, even the use of only one mist generator has shown that the iterative or pulsating emission of protective agent mist - ie the repeated activation and deactivation of the release of the protective agent mist - is an improvement over continuous delivery Forming the mist atmosphere of corrosion inhibitor and leads to a smaller proportion directly against walls of bouncing droplets.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un procédé pour recouvrir des parois intérieures d'une cavité avec une couche protectrice (50) constituée de cire anticorrosion, notamment en vue d'une utilisation sur des carrosseries de véhicule (10) et sur des éléments rapportés pour des carrosseries de véhicule. La cire anticorrosion est produite sous forme nébulisée (brouillard d'agent anticorrosion (40)) au moyen d'un nébulisateur (31) et acheminée par une ouverture de sortie (32) à la cavité (12) à protéger. Le brouillard d'agent anticorrosion (40) se dépose sur les parois intérieures de la cavité (12) où il forme une couche d'agent anticorrosion (50).
EP17703199.4A 2016-02-09 2017-02-09 Procede destine a revetir les parois interieures d'un espace creux a l'aide d'une couche de protection anticorrosion constituee de cire ou a base de cire Active EP3414020B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16154796.3A EP3205407B1 (fr) 2016-02-09 2016-02-09 Procede et installation destines a revetir les parois interieures d'un espace creux a l'aide d'une couche de protection anticorrosion a base de cire
PCT/EP2017/052932 WO2017137520A1 (fr) 2016-02-09 2017-02-09 Procédé et dispositif pour recouvrir des parois intérieures d'une cavité avec une couche protectrice constituée de cire anticorrosion ou d'un agent anticorrosion

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EP3414020A1 true EP3414020A1 (fr) 2018-12-19
EP3414020B1 EP3414020B1 (fr) 2020-04-08

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EP16154796.3A Active EP3205407B1 (fr) 2016-02-09 2016-02-09 Procede et installation destines a revetir les parois interieures d'un espace creux a l'aide d'une couche de protection anticorrosion a base de cire
EP17703199.4A Active EP3414020B1 (fr) 2016-02-09 2017-02-09 Procede destine a revetir les parois interieures d'un espace creux a l'aide d'une couche de protection anticorrosion constituee de cire ou a base de cire

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US (1) US10870124B2 (fr)
EP (2) EP3205407B1 (fr)
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EP3670001B1 (fr) * 2018-12-18 2021-07-28 IPR-Intelligente Peripherien für Roboter GmbH Procédé de conservation d'espace creux, buse de mélange et dispositif de conservation d'espace creux doté d'une telle buse de mélange
DE102020127076A1 (de) * 2020-01-20 2021-07-22 Jens-Werner Kipp Verfahren zur Dünnbeschichtung innenliegender Oberflächen von Durchgangsausnehmungen

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB867303A (en) 1958-02-24 1961-05-03 Shell Res Ltd Improvements in or relating to methods of inhibiting corrosion in the cargo tanks ofmarine vessels
US3227572A (en) * 1962-06-06 1966-01-04 Chevron Res Pipe repair process
US3202363A (en) * 1963-07-01 1965-08-24 Aro Corp Automatic fogspray device
US3488213A (en) * 1965-05-20 1970-01-06 Schlitz Brewing Co J Method and apparatus for applying a coating to the interior surface of a hollow article
US3673463A (en) * 1969-06-30 1972-06-27 Gourdine Systems Inc Methods and apparatus for electrogasdynamic coating
DE3066513D1 (en) * 1979-10-25 1984-03-15 Sumitomo Light Metal Ind Method, apparatus and spray nozzle for coating the inner surface of long tubes of small diameter
DE3006908C2 (de) 1980-02-23 1985-04-18 Fritz 8942 Ottobeuren Noack Einrichtung zum Korrosionsschutz von Metallflächen
JPS5813226B2 (ja) 1980-05-29 1983-03-12 株式会社 日本プラントサ−ビスセンタ− パイプ内壁面のライニング方法
US4314670A (en) * 1980-08-15 1982-02-09 Walsh William A Jun Variable gas atomization
GB2123516B (en) 1982-04-30 1986-02-05 Hakko Co Lining old underground pipes
JPS58189074A (ja) 1982-04-30 1983-11-04 Hakko Co Ltd 既設管の内面ライニング補修工法
GB2123917B (en) 1982-04-30 1986-02-12 Hakko Co Lining underground pipes
JPS5952570A (ja) 1982-09-20 1984-03-27 Nissan Motor Co Ltd 塗装方法
JPS59150578A (ja) 1983-02-18 1984-08-28 Hakko Co Ltd 既設管の管内面補修方法
DE3910179C1 (fr) * 1989-03-29 1990-03-29 J. Wagner Gmbh, 7990 Friedrichshafen, De
US5522930A (en) * 1994-11-04 1996-06-04 The Regents, University Of California Method and device for producing and delivering an aerosol for remote sealing and coating
DE10115463A1 (de) * 2001-03-29 2002-10-02 Duerr Systems Gmbh Zerstäuber für eine Beschichtungsanlage und Verfahren zu seiner Materialversorgung
FI20080264L (fi) * 2008-04-03 2009-10-04 Beneq Oy Pinnoitusmenetelmä ja -laite
DE102009052089A1 (de) * 2009-11-05 2010-06-17 Daimler Ag Vorrichtung zum Konservieren von Hohlräumen
CN102601010A (zh) * 2011-03-30 2012-07-25 中国石油化工集团公司 一种天然气管道缓蚀剂涂膜装置
FR3014334A3 (fr) * 2013-12-05 2015-06-12 Renault Sa Buse d'une platine d'injection de cire

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Publication number Publication date
EP3414020B1 (fr) 2020-04-08
CN108698066B (zh) 2021-10-29
CN108698066A (zh) 2018-10-23
EP3205407B1 (fr) 2019-09-25
US20190022686A1 (en) 2019-01-24
US10870124B2 (en) 2020-12-22
WO2017137520A1 (fr) 2017-08-17
EP3205407A1 (fr) 2017-08-16

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