EP3228389B1 - Procédé de formation d'une barre structurale tridimensionnelle - Google Patents
Procédé de formation d'une barre structurale tridimensionnelle Download PDFInfo
- Publication number
- EP3228389B1 EP3228389B1 EP17164535.1A EP17164535A EP3228389B1 EP 3228389 B1 EP3228389 B1 EP 3228389B1 EP 17164535 A EP17164535 A EP 17164535A EP 3228389 B1 EP3228389 B1 EP 3228389B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- coating
- bodies
- structural
- fluidized bed
- 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.)
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Links
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- 238000000576 coating method Methods 0.000 claims description 61
- 239000011248 coating agent Substances 0.000 claims description 59
- 239000000843 powder Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000010257 thawing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 239000004753 textile Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000007306 functionalization reaction Methods 0.000 description 4
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- 238000001816 cooling Methods 0.000 description 3
- -1 for example Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009997 thermal pre-treatment Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- 239000003365 glass fiber Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
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- 238000005470 impregnation Methods 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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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
- 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
- B05D7/20—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 wires
-
- 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
- B05D1/22—Processes for applying liquids or other fluent materials performed by dipping using fluidised-bed technique
- B05D1/24—Applying particulate materials
-
- 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
- B05D1/322—Removable films used as masks
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
-
- 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
- B05D2254/00—Tubes
- B05D2254/02—Applying the material on the exterior of the tube
-
- 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
- B05D2256/00—Wires or fibres
Definitions
- the present invention relates to a method for forming a three-dimensional strand, the strand being passed through a fluidized bed chamber or a powder cloud in which swirled powder particles of at least one coating material are applied to the strand and attach to it to form a coating.
- the known method is suitable for those applications in which the surface of the strand or cable to be coated essentially consists of one and the same material and is homogeneous.
- EP 0 814 916 B1 describes a method for producing flexible, pre-impregnated cables, coating with powder particles by using a fluidized bed.
- the publication DE 26 19 491 A1 discloses a method for producing an insulated electrical conductor, wherein a powdery polymer material is electrostatically deposited on a wire-shaped conductor, which has a layer formed from heat-resistant material, heat is supplied to the conductor for fusing the polymer material and forming an outer insulation layer, and the polymer-coated conductor is cooled becomes.
- a method for producing a coated fiber strand is in the document DE 699 07 881 T2 described.
- the fiber strand has a primary, a secondary and a tertiary coating, the tertiary coating being applied by means of a fluidized bed.
- the publication DE 198 14 632 C1 involves a method of applying a protective layer to an elongated body.
- the body is preferably coated by means of vortex sintering, the coating being applied only to selected sections of the body.
- the sections of the body that are not to be coated are covered with a U-shaped cap or an expandable clamp during the coating process.
- the fluidized bed device consists of a fluidized bed, a funnel-shaped tube widening (elutriator) arranged above the fluidized bed, compressed air lines, a metering device for supplying an impregnating powder and transport means in the form of deflection rollers for transporting the threads to be impregnated through the fluidized bed device.
- the threads that are treated with the process are threads, ribbons, filaments or yarns.
- the publication US 4,839,199 A describes a method and an apparatus for coating fiber bundles, the fiber bundle to be coated being fed into a coating system.
- the coating material is fed through one or more liquid or gas lines to coating heads which are aligned from the fiber bundle.
- the coating material can be, for example, a powder fed directly to a gas stream or a powder bound in a gas.
- the publication GB 702 829 A discloses a method and apparatus for coating a thread, which may be formed from metal or another material.
- the coating is applied to the thread by passing the thread through a bath having the coating.
- the thickness of the coating adhering to the thread can be varied, thereby producing a thread whose coating is thicker in certain areas.
- a method of the type mentioned in the introduction in which the strand is passed through a fluidized bed chamber or a powder cloud, in which swirled powder particles of at least one coating material are applied to the strand and adhere to it with the formation of a coating, as a strand one from the other spaced on or in a basic strand, a structural strand comprising structural bodies is used, which is a cord or a hose with structural bodies threaded thereon and / or inserted therein, the basic strand and the structural bodies consisting of different material or of the same material with different surface properties, the powder particles in the fluidized bed chamber or the powder cloud react chemically and / or physically with the base strand and / or the structural bodies and / or with a primer applied to the base strand and / or the structural bodies and / o which are thermally bound in or on the surface of the structural body and / or the primer.
- a different material can also mean a different material mixture ratio.
- a three-dimensional structural strand can be produced, in which, depending on the strand, structural body and coating material used and on the process used, either only the structural bodies, that is only the three-dimensional components of the structural strand, only the basic strand, that is to say only the two-dimensional component of the structural strand, or both are coated.
- the method can be used to apply a wide variety of coatings, which can lead to a refinement and / or functionalization of the components of the structural strand, on the structural strand.
- the structural bodies are threaded onto and / or introduced into the structural strand formed as a cord or tube.
- a textile thread, a textile thread or fiber composite, a textile strip, a hose, a mesh hose, a wire, a rubber, a cord, a braid-like structure or the like can be used as the basic strand.
- the structural bodies can be designed, inter alia, as lead balls, plastic beads or frozen ice bodies.
- the structural strand coated with the coating material from the fluidized bed chamber or the powder cloud is preferably passed continuously into a post-treatment chamber in which the coating applied to the structural strand is stabilized and / or fixed and / or solidified.
- the structural strand in the aftertreatment device and / or at least one of the fluidized bed chamber or the powder cloud in the structural strand conveying direction upstream of the pretreatment chamber is guided over deflection rollers.
- the relative distance between the opposite deflection rollers can be changed depending on the required dwell times in the process steps of the method and / or the length and / or geometry and / or material composition and / or tension of the structural strand during the pretreatment and / or aftertreatment of the structural strand become.
- the structural bodies are removed from the structural strand after the coating has been applied, for example by means of dissolving or thawing.
- a two-dimensional strand structure can be produced from the three-dimensional structural strand by removing or detaching the three-dimensional structural bodies, in which an untreated basic strand is present at the locations at which the structural bodies were previously, while the intermediate areas are coated with the coating .
- the structural bodies are pretreated physically and / or chemically and / or mechanically in a pretreatment chamber upstream of the fluidized bed chamber or the powder cloud in a structural strand conveying direction and / or applied to the base strand.
- the structural bodies can be applied to the base strand, for example by means of drop application.
- Figure 1 shows in cross section an embodiment of a three-dimensional structural strand 1 to be coated in the method according to the invention.
- the structural strand 1 has a basic strand 2, on or in which structural bodies 3 are provided at intervals from one another.
- the structural strand 1 can be, for example, a cord or a hose with structural bodies 3, such as lead balls, plastic beads or also frozen ice bodies, threaded thereon, fastened and / or inserted therein or thereon, or a string of pearls.
- the structural bodies 3 can consist of different material from the material of the base bar 2 or of the same material as the base bar 2, but with different surface properties than the base bar 2. In the exemplary embodiment shown, the structural bodies 3 consist of a different material than the basic strand 2.
- the basic strand 2 can be, for example, a textile thread, textile thread or fiber composite, textile strip, hose, net hose, wire, rubber, a cord, a braid-like structure or the like.
- the structural body 3 can consist of the same or different materials.
- the structural body 3 can also have the same or different properties, such as the same or different heat capacity, electrical conductivity, gloss, weight, magnetizability, shape, porosity, melting temperature, piezoactivity, radioactivity, taste, solubility, ionizability, strength, etc.
- a coating 4 can be applied not only to the structural bodies 3, but also to the base strand 2 located between the structural bodies 3.
- the coating 4 can be provided on the structural strand 1 for various purposes or for various reasons.
- the coating 4 can serve for surface functionalization, surface refinement, sealing, activation, passivation, coloring, ionization, doping, magnetization, metallization, plasticization etc. of the structural strand 1.
- the coating 4 takes place completely on the entire structural strand 1.
- the coating 4 encases the structural strand 1, it being possible that the coating 4 penetrates into the structural strand 1 and / or between the basic strand 2 and the structural body 3.
- the initially untreated structural strand 1 or only the basic rod 2 first passes through a pretreatment chamber 5.
- the provision of the pretreatment chamber 5 is optional.
- the structural bodies 3 can be applied to the base rod 2, for example by means of drop application.
- a method is used in the pretreatment chamber 5 which prepares the base strand 2 and / or the structural bodies 3 for the subsequent coating step.
- one or more devices for preparing the functionalization and / or refinement which takes place in the fluidized bed chamber 10 described below or in a powder cloud, can be integrated in the pretreatment chamber 5.
- the structural strand 1 can be thermally pretreated in the pretreatment chamber 5.
- at least one heating source 6 and / or at least one electromagnetic radiation source can be provided in the pretreatment chamber 5.
- at least one gas inlet, at least one gas outlet and / or at least one cooling device or another pretreatment device 5 can be provided in or on the pretreatment chamber 5, with which the structural strand 1 prepares for the subsequent coating step in the fluidized bed chamber 10 or for this can be prepared.
- heat distribution devices 7 such as fans, are provided in order to be able to achieve a homogeneous heat distribution in the pretreatment chamber 5.
- a structural strand 1 which consists of a basic strand 2 made of cotton with structural bodies 3 in the form of lead balls, is to be completely coated
- the basic strand 2 and the structural bodies 3 have different heat capacities, which means that the basic strand 2 and the Structural bodies 3 heat up at different speeds during a thermal pretreatment in the pretreatment chamber 5 and store the heat for different lengths of time. This effect is also dependent on the respective dimensions of the base strand 2 and the structural body 3.
- an adhesive can be applied and / or nebulized in the pretreatment chamber 5, with which both Base strand 2 and the structural bodies 3 react in the same way and which forms a primer on the base strand 2 and the structural bodies 3, with which a subsequent coating can govern well or in which a subsequent coating can be thermally incorporated.
- the structural strand 1 in the pretreatment chamber 5 is guided around a plurality of deflection rollers 8, 8 ′, so that the entire chamber size of the pretreatment chamber 5 can be used in a suitable manner for the pretreatment of the largest possible amount of the structural strand 1.
- the deflection rollers 8, 8 ' can also be omitted.
- the relative distance between the mutually opposite deflection rollers 8, 8 ' is adjustable by means of a distance adjustment device 9.
- the height H of the upper deflection rollers 8 can be changed for this purpose.
- the upper guide rollers 8 are located on a common, height-adjustable bar. The same is also possible with the lower deflection rollers 8 '.
- the pretreated structural strand 1 leaving the pretreatment chamber 5 is then continuously guided further into the fluidized bed chamber 10 or a powder cloud.
- pulverized particles are fluidized or swirled by means of a gas stream.
- the powder cloud can be generated by various measures, for example by the action of sound pressure or vibration on powder particles and / or by spraying, pouring, trickling and / or mixing powder particles.
- the powder particles are in the embodiment of Figure 2 via a powder feed device 12, which can be, for example, a powder storage silo that enables continuous powder tracking, an interior of the Fluidized bed chamber 10 supplied.
- a constant fluidized bed density can be ensured by the powder feed device 12.
- the powder particles can, for example, but not exclusively, be formed from a polymer powder, such as, for example, polyethylene, polypropylene, polyester or PES (polyether sulfone).
- a polymer powder such as, for example, polyethylene, polypropylene, polyester or PES (polyether sulfone).
- the powder particles can consist of different materials and / or can be formed from materials with different densities and / or can have different particle sizes.
- a mixed functionalization of the components of the structural strand 1 can be carried out in the fluidized bed chamber 10 or the powder cloud.
- the surface of the structural strand 1 can, for example, be electrically conductive and / or hydrophobic and / or white and / or magnetic and / or corrosion-resistant and / or piezoactive.
- porous base plate 13 in a lower region of the fluidized bed chamber 10, which serves to introduce air into the fluidized bed chamber 10.
- Gas such as air, is introduced through the gas-permeable base plate 13 to whirl up the powder particles from below through a gas inlet 14 into the fluidized bed chamber 10.
- a filter 15 is also placed on the fluidized bed chamber 10.
- the filter 15 prevents the powder particles from being discharged.
- an aftertreatment device 16 in Form of an aftertreatment chamber is provided, into which the coated structural strand 1 coming out of the fluidized bed chamber 10 is continuously guided.
- the coating 4 applied to the structural strand 1 in the fluidized bed chamber 10 or the powder cloud is stabilized and / or solidified.
- the coating 4 is solidified in the in Figure 2 Embodiment shown by means of at least one heat source 6, for the heat distribution at least one heat distribution device 7, such as at least one fan, is provided.
- At least one heating source 6 instead of or in addition to the at least one heating source 6, at least one other radiation source, at least one infrared treatment device, at least one paint coating device and / or at least one ionization device can be provided in the aftertreatment chamber 16.
- aftertreatment chamber 16 at least one gas inlet, at least one gas outlet and / or at least one cooling device.
- the structural strand 1 in the aftertreatment chamber 16 is likewise guided around a plurality of deflection rollers 8, 8 ′, so that the entire chamber size of the aftertreatment chamber 16 can be used for the aftertreatment of as large a quantity of the coated structural strand 1 as possible with high throughput quantities or short dwell times.
- the deflection rollers 8, 8 'in the aftertreatment chamber 16 can also be omitted.
- the relative spacing of the opposite deflection rollers 8, 8 ′ can also be adjusted in the aftertreatment chamber 16 by means of a spacing adjustment device 9.
- the height H of the upper deflection rollers 8 can be changed for this purpose.
- the upper guide rollers 8 are located on a common, height-adjustable bar. The same is also possible with the lower deflection rollers 8 '.
- FIG Figure 2 are both the basic strand 2 and the structural body 3 with the coating 4 to form the in FIG Figure 6 schematically shown coated structural strand 1c coated.
- the structural body 3 can be coated with the formation of the coated structural strand 1 a or only the base strand 2 with the coating 4 with the formation of the coated structural strand 1 b.
- Figure 3 shows schematically another possible device for realizing a further embodiment of the method according to the invention.
- the structural strand feed unit 17 contains at least one structural strand storage device and at least one drive, unwinding and conveying unit for the structural strand 1.
- the structural strand feed unit 17 has a roller 18 from which the unprocessed structural strand 1 is unwound and fed to the pretreatment chamber 5.
- a post-treatment device 19 which can have, for example, at least one heating source or at least one other radiation source, such as at least one IR or at least one UV radiation source.
- the coating 4 applied to the structural strand 1 is solidified in the aftertreatment device 19.
- the aftertreatment device 19 is in the exemplary embodiment of FIG Figure 3 an air cooling or a gas exhaust 20 downstream with a heat distribution device 7 in the form of a fan. In this way, heat recovery can be realized.
- the coated structural strand 1a, 1b or 1c is subsequently shown in the in Figure 3
- the embodiment shown is wound in at least one roll 22 in a winding unit 21.
- the winding unit 21 is connected to a drive unit 23, such as a motor.
- the winding unit 21 can be designed as a cabinet for absorbing waste heat.
- Figure 4 schematically shows a first variant of a structural strand 1a coated with the method according to the invention.
- the coating 4 is only on the structural bodies 3.
- Figure 5 shows schematically a second variant of a structural strand 1b coated with another embodiment of the method according to the invention.
- the coating 4 is only on the base strand 2.
- Figure 6 shows schematically a third variant of a structural strand 1c coated with a further embodiment of the method according to the invention, in which both the basic strand 2 and the structural bodies 3 are provided with the coating 4.
- Figure 7 schematically shows an embodiment of a structural strand 1d coated with the method according to the invention, from which the structural bodies 3 have been removed or detached after the coating 4 has been applied.
- the structural bodies 3 can be removed or detached, for example, by means of dissolving with solvent or, if the structural bodies 3 are, for example, ice cubes or balls, by thawing away the structural bodies 3.
- the result is, as in Figure 7 to see a structural strand 1d on the basis of the base strand 2 with a surface sequenced by the spaced apart coating 4.
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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)
Claims (10)
- Procédé de formation d'une barre tridimensionnelle, selon lequel la barre est guidée à travers une chambre à lit fluidisé (10) ou un nuage de poudre dans laquelle/lequel des particules de poudre tourbillonnées d'au moins un matériau de revêtement sont appliquées sur la barre et s'y fixent pour former un revêtement (4), caractérisé en ce que la barre utilisée est une barre structurale (1) comportant des corps structurels (3) espacés les uns des autres sur ou dans une barre de base (2), laquelle barre structurale est un cordon ou un tuyau sur/dans lequel sont enfilés et/ou insérés des corps structurels (3), selon lequel la barre de base (2) et les corps structurels (3) sont constitués d'un matériau différent ou du même matériau ayant des propriétés de surface différentes, les particules de poudre dans la chambre à lit fluidisé (10) ou le nuage de poudre réagissant chimiquement et/ou physiquement avec la barre de base (2) et/ou les corps structurels (3) et/ou avec une amorce appliquée sur la barre de base (2) et/ou sur les corps structurels (3), et/ou étant thermiquement liés dans ou sur la surface des corps structurels (3) et/ou de l'amorce pour ainsi former le revêtement (4).
- Procédé selon la revendication 1, caractérisé en ce que la barre structurale (1) revêtue du revêtement (4) est guidée hors de la chambre à lit fluidisé (10) ou du nuage de poudre en continu dans une direction d'entraînement de barre structurale (A) vers un dispositif de post-traitement (16, 19) dans lequel le revêtement (4) appliqué sur la barre structurale (1) est stabilisé et/ou fixé et/ou solidifié.
- Procédé selon la revendication 1 ou 2, caractérisé en ce que le revêtement (4) est appliqué uniquement sur la barre de base (2) ou uniquement sur les corps structurels (3) ou sur la barre de base (2) et les corps structurels (3).
- Procédé selon au moins l'une des revendications précédentes, caractérisé en ce que la barre structurale (1) dans l'un de la chambre à lit fluidisé (10) ou du nuage de poudre est guidée dans un dispositif de post-traitement (16, 19) en aval d'une direction d'entraînement de barre structurale (A), et/ou en ce que la barre structurale au moins dans un de la chambre à lit fluidisé (10) ou du nuage de poudre est guidée, par l'intermédiaire de poulies de renvoi (8, 8'), dans la chambre de prétraitement (5) en amont de la direction d'entraînement de barre structurale (A).
- Procédé selon la revendication 4, caractérisé en ce que la distance relative entre les poulies de renvoi (8, 8') opposées est modifiée en fonction des temps de séjour requis dans les étapes de processus du procédé et/ou de la longueur et/ou de la géométrie et/ou de la composition du matériau et/ou de la tension de la barre structurale (1) pendant le prétraitement et/ou le post-traitement de la barre structurale (1).
- Procédé selon au moins l'une des revendications précédentes, caractérisé en ce que les corps structurels (3) sont retirés de la barre structurale (1) après application du revêtement (4).
- Procédé selon la revendication 6, caractérisé en ce que, après application du revêtement, les corps structurels (3) sont retirés de la barre structurale (1) par dissolution ou par fonte.
- Procédé selon au moins l'une des revendications précédentes, caractérisé en ce que les corps structurels (3) dans un de la chambre à lit fluidisé (10) ou du nuage de poudre sont prétraités physiquement et/ou chimiquement et/ou mécaniquement dans une chambre de prétraitement (5) en amont de la direction d'entraînement de barre structurale (A), et/ou appliqués sur la barre de base (2).
- Procédé selon la revendication 8, caractérisé en ce que les corps structurels (3) sont appliqués en gouttelettes sur la barre de base (2).
- Procédé selon au moins l'une des revendications précédentes, caractérisé en ce que des billes en plomb, des perles en plastique et/ou des corps de glace gelés sont utilisés comme corps structurels (3).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016106480.7A DE102016106480A1 (de) | 2016-04-08 | 2016-04-08 | Verfahren zur Ausbildung eines dreidimensionalen Strukturstranges |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3228389A1 EP3228389A1 (fr) | 2017-10-11 |
EP3228389B1 true EP3228389B1 (fr) | 2020-03-11 |
Family
ID=58489530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17164535.1A Active EP3228389B1 (fr) | 2016-04-08 | 2017-04-03 | Procédé de formation d'une barre structurale tridimensionnelle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3228389B1 (fr) |
DE (1) | DE102016106480A1 (fr) |
ES (1) | ES2792059T3 (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB702829A (en) * | 1950-05-05 | 1954-01-27 | North British Rayon Ltd | Improvements in or relating to coated threads |
US3919437A (en) * | 1972-02-22 | 1975-11-11 | Owens Corning Fiberglass Corp | Method for electrostatically impregnating strand |
US4131690A (en) * | 1975-05-05 | 1978-12-26 | Northern Electric Company Limited | Method of powder coating an insulated electrical conductor |
DE2948650A1 (de) | 1979-12-04 | 1981-06-11 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Verfahren zur herstellung eines feuchtigkeitsgeschuetzten kunststoffisolierten elektrischen energiekabels |
NL8502947A (nl) * | 1985-07-16 | 1987-02-16 | Flexline Services Ltd | Werkwijze en inrichting voor het impregneren van uit verschillende filamenten bestaande draden, linten of dergelijke die eventueel in een weefsel of breisel, e.d. verwerkt zijn. |
FR2659595B1 (fr) * | 1990-03-15 | 1992-09-04 | Inst Nat Rech Chimique | Procede d'impregnation de fibres a l'aide de poudre de polymeres, en lit fluidise, et dispositif de mise en óoeuvre. |
US5756206A (en) * | 1995-03-15 | 1998-05-26 | Custom Composite Materials, Inc. | Flexible low bulk pre-impregnated tow |
RU2196746C2 (ru) * | 1998-03-03 | 2003-01-20 | Ппг Индастриз Огайо, Инк. | Стекловолоконные пряди, покрытые теплопроводными неорганическими частицами, и содержащие их изделия |
DE19814632C1 (de) * | 1998-03-26 | 1999-10-14 | Mannesmann Ag | Verfahren und Vorrichtung zum Aufbringen einer Schutzschicht auf einem langgestreckten Körper, insbesondere Draht oder Rohr |
-
2016
- 2016-04-08 DE DE102016106480.7A patent/DE102016106480A1/de not_active Withdrawn
-
2017
- 2017-04-03 EP EP17164535.1A patent/EP3228389B1/fr active Active
- 2017-04-03 ES ES17164535T patent/ES2792059T3/es active Active
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
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DE102016106480A1 (de) | 2017-10-12 |
ES2792059T3 (es) | 2020-11-06 |
EP3228389A1 (fr) | 2017-10-11 |
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