WO2016111095A1 - Procédé d'application de revêtement - Google Patents

Procédé d'application de revêtement Download PDF

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Publication number
WO2016111095A1
WO2016111095A1 PCT/JP2015/083194 JP2015083194W WO2016111095A1 WO 2016111095 A1 WO2016111095 A1 WO 2016111095A1 JP 2015083194 W JP2015083194 W JP 2015083194W WO 2016111095 A1 WO2016111095 A1 WO 2016111095A1
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WO
WIPO (PCT)
Prior art keywords
coating
tray
coated
booth
mask
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Application number
PCT/JP2015/083194
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English (en)
Japanese (ja)
Inventor
松永　正文
Original Assignee
エムテックスマート株式会社
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Filing date
Publication date
Application filed by エムテックスマート株式会社 filed Critical エムテックスマート株式会社
Publication of WO2016111095A1 publication Critical patent/WO2016111095A1/fr

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    • 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
    • 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

Definitions

  • the present invention relates to a method and apparatus for applying a coating material such as a phosphor to a substrate such as an LED.
  • the application according to the present invention includes continuous or intermittent spraying of a fluid such as powder, melt, or liquid, ink jet, atomization (including fiberization) application, electrostatic atomization (including atomization) on a substrate.
  • a fluid such as powder, melt, or liquid, ink jet
  • atomization (including fiberization) application electrostatic atomization (including atomization) on a substrate.
  • a micro-curtain is a method of applying to a substrate using a portion of the liquid film before it becomes a mist when spraying a liquid etc. with an airless spray nozzle etc. Change in shape.
  • atomization includes particleization by spraying, but liquids and melts are subjected to ultrasonic waves, spin such as electrospinning, centrifugal force of a rotating body, meltblown device etc. It refers to the method of applying to paint.
  • Patent Document 1 a coating agent is sprayed by a spray nozzle which moves substantially straight to a printed substrate which is a to-be-coated body moving in a booth, and a to-be-coated coating agent is provided immediately below the to-be-coated body.
  • a coating device is disclosed that recovers and reuses the oversprayed uncoated coating agent.
  • Patent Document 2 is a coating method or apparatus filed by the present applicant, which comprises a phosphor, a binder, and a solvent on an object such as an LED on an object mounting unit in a booth equipped with an intake and exhaust mechanism.
  • a method and apparatus are disclosed for applying a slurry or other liquid with an applicator.
  • Patent Document 1 As described in the detailed description of Patent Document 1, in the case of single-sided application of the ordinary coated object by spraying, foreign matter adheres to the back surface, and conveyance is difficult when the back surface is contacted and conveyed. Even if the method of Patent Document 1 is adopted, if the depth to the bottom surface of the coating material receiving pallet is deep, for example, when it is 250 mm or more, turbulent flow occurs in the spray flow until it is collected and the back surface of the object to be coated When the distance between the bottom surface of the recovery pallet and the nozzle is short, for example, 150 mm or less, instantaneous spray on the bottom surface of the spray flow tends to cause rebound, which tends to cause more adhesion to the back surface. If the exhaust speed near the recovery pallet is increased to prevent it, the spray pattern will be affected by the spray pattern and the spray particles will be taken to the exhaust, the coating distribution of the coated object will be worse and the coating efficiency will be worse. Met.
  • Patent Document 2 is a ground-breaking method in which the application efficiency can be made 90% or more upon application to an A4 size object by performing pulse spray, but the end surface of the object is only marginal
  • the heating table which is the unit for placing objects to be coated, and apply aluminum foil etc. at least outside the object on the table for the purpose of preventing adhesion to the table. It spreads, and it was made to apply the splay pattern out of the object to be coated. The operator regularly replaced and discarded aluminum foil and the like to which the paint adheres.
  • the object to be coated is a sheet-like plate, thick three-dimensional or composite material
  • the object to be coated is a belt conveyor or chain conveyor. It was extremely difficult to uniformly coat the entire surface without causing the coating material to adhere to the back surface of the conveyor or the substrate when it was placed, moved, and moved relative to the spray apparatus for coating. Also, if the width of the belt conveyor is wider than that of the substrate and the back surface of the substrate is in direct contact with the belt conveyor and uniformly applied to the entire surface of the substrate so that it does not adhere to the surface of the substrate, As the coating pattern adheres to the belt conveyor, much time has been spent on its removal.
  • the back surface of the object to be coated is carried by being supported by the claws of the tips of the four crank hands.
  • the exhaust speed and coating method are devised, for example, a method of applying large particles at a low pressure by air spray such as HVLP (high volume low pressure) and applying, or diluting to low solid content with a solvent etc. It is thought that the back side adhesion of the coated material could be prevented by making full use of know-how such as the ultra low pressure atomization method.
  • HVLP high volume low pressure
  • the object to be coated has rigidity, but it is not suitable for the object to be coated such as a thin plate or a film which causes deflection even when supported at four or more points.
  • the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to automatically coat, for example, a powder, a melt such as a thermoplastic resin, or a liquid at room temperature.
  • a powder for example, a powder, a melt such as a thermoplastic resin, or a liquid at room temperature.
  • a melt such as a thermoplastic resin
  • a liquid at room temperature for example, even when using an air spray method in which the material is sprayed and atomized by a general air pressure, the desired portion is uniformly coated, and the coated object after coating is stored or dried in a magazine rack or the like (BAKING) It is to automate a series of flow up to the process.
  • the phosphor is applied automatically and is automatically transferred downstream, for example, storage of the object in a magazine rack or baking process.
  • the present invention is a method of applying a coating material to a substrate by means of an applicator or dispenser incorporated in an application booth equipped with at least exhaust means, the tray comprising: A first step of positioning and placing an object to be coated which is smaller than the tray, and a second step of automatically positioning and placing the tray on a table at a tray placement position outside the coating booth. The third step of automatically moving the table into the coating booth by opening the shielding mechanism between the inside and the outside of the coating booth, and moving the coating mechanism and the table relative to each other.
  • the fifth work to move to the loading position When the tray placing the object to be coated on the table provides a coating method characterized by automatically removed from the table to move automatically to the downstream by an automatic machine.
  • a plurality of objects to be coated are positioned and placed on a tray in advance, the area of the tray is made larger than the sum of the areas of the objects to be coated, and the tray is positioned and placed on a table Providing a coating method characterized by
  • the present invention provides a coating method characterized in that a mask having the same size or larger size as the tray is positioned and placed on the object to be coated on the tray in advance.
  • a loader mechanism is provided upstream of a means for automatically placing on the table the tray on which the object to be coated is placed, and the table is a heating table, the object being heated by thermal conduction. After the coating material is applied to the coating booth and the volatile matter of the coating material on the coating material is volatilized by 95% or more, the table is moved out of the coating booth and is unloaded downstream of the automatic tray removing means.
  • a coating method is provided, characterized in that a mechanism is provided, and the loader and unloader mechanism is a combined device.
  • the magazine rack of the tray for the object to be coated is installed upstream of the loader mechanism and the downstream of the unloader mechanism, and the loading and unloading of the tray on which the object is placed is automatically performed on the same shelf of the magazine rack.
  • the present invention has a first step of arranging the tray mounting position, the coating booth and the oven in this order, and the table has an adsorption function, and the mask is set on the object on the tray adsorbed on the table and moved to the coating booth
  • a fourth step of moving through the booth to the to-be-coated position, repositioning the mask on the to-be-coated, moving the table to the coating booth, and applying the to-be-coated by the applicator The fifth to laminate paint to To provide a coating method characterized by comprising the extent.
  • the inlets and outlets of a plurality of coating devices are arranged in series, and the tray on which the object is placed is automatically conveyed to the inlet of each coating device, and the tray on which the object is placed is an automatic machine
  • the table is moved to the table on the tray mounting position of the coating device, positioned and placed on the table, the table is moved into the coating booth, and the coating material is coated on the object to be coated by the coating device.
  • the mask is set on the object placed on the tray and at least the tray and the object are adsorbed by the table having the adsorption function, and the table is moved to the coating booth to perform the coating operation. After completion, the mask of the substrate transferred to the inlet of the coating apparatus is removed, and only the tray and the substrate are transferred to the oven to promote drying or curing.
  • the present invention provides a coating method characterized in that the removed mask is conveyed by an automatic machine or another conveyor and set on the substrate again at the downstream of the inlet of the coating apparatus.
  • At least one object to be coated is positioned and mounted on the tray, and the mask is positioned and mounted on the object to be coated, and the external dimension of the mask is the same as or larger than that of the tray,
  • the area is in the order of tray> coated object (total of one or more)
  • the tray is positioned and placed on a table having a heating and suction function by an automatic machine, and the table is moved to a coating booth to be a table and The applicator moves relative to each other to apply the coating material to the substrate so as not to protrude from the mask, and the tray on the table is automatically moved downstream.
  • the coating material is a slurry (SLURRY) containing a solvent, and the slurry attached to the mask is dissolved and recovered with a solvent, the solvent is volatilized, a solvent is newly added, the slurry is recycled and reused.
  • SURRY slurry
  • the application method characterized by the above is provided.
  • the object to be coated is an LED or a member for an LED
  • the coating material is a slurry comprising a phosphor and a silicone binder and a solvent, or a phosphor and a solvent
  • the coating is a spray coating method.
  • a coating method characterized by
  • the present invention is a method for applying a coating material to a substrate by means of an applicator incorporated in a coating booth equipped with at least exhaust means, comprising positioning and placing one or more substrates on a tray. And a first step of positioning and placing a mask larger than the substrate on the substrate to form a substrate assembly, and the substrate assembly is transferred to the inside and outside of the coating booth by a conveyor. And the second step of automatically moving the coating mechanism into the coating booth and closing the shielding mechanism, and the coating pattern and the coating assembly move relative to each other and the coating pattern moves the mask.
  • the application assembly opens the shielding mechanism or the shielding mechanism on the opposite side and moves out of the booth and further Move downstream It provides a coating method comprising Rukoto.
  • the object to be coated stored in the magazine rack is transported from the loader to the coating booth, the coating material is automatically applied by the applicator in the coating booth, and is transported from the coating booth to the unloader and the magazine rack is unloaded.
  • Device for storing the object to be coated positioning the object to be coated on a tray and placing it on the tray, and storing the tray on which the object to be coated is placed in a magazine rack, and the magazine rack
  • a third step of positioning and placing on a heating / suction table at a position, and said table moving in the booth with the shutter open and a fourth step of closing the shutter The object to be coated on the table moves relative to the applicator and the fifth step of applying at least one layer of the coating material by the applicator, and after the application is completed, the
  • a desired article to be coated is placed on a tray having a larger area than the article to be coated, and is applied to a smaller area than the tray. Furthermore, a mask with the same size as the tray or a larger outside dimension can be set and applied to the substrate. By doing so, even if the coating is air-spraying, the coating material can be applied without protruding from the mask.
  • an air and paint such as an impact pulse system and the like can be sprayed in a pulsing manner so long as the particles have an angular directivity within 30 degrees, preferably within 20 degrees, and a desired speed.
  • a micro-curtain device is used to form a liquid film at a low pressure of 0.1 to 0.5 MPa using a spray nozzle or the like and apply the liquid film, the object to be coated is adsorbed on the tray. There is no back of the coating on the object, and when the mask is set, the coating can be applied without scattering to an area smaller than that of the mask, and the coating does not adhere to the back of the tray.
  • the object to be coated is not limited in shape or size, but sheet-fed type such as semiconductor substrate, LED ceramic substrate or wafer level LED or film is preferable from the viewpoint of handling, and tray does not matter in material, shape, weight etc. May be a flat panel, or may be a tray such as a tray with a shallow bottom, such as round or square. Regardless of the shape, provide pins for positioning the object to be coated, set a counterbore on the shape of the object to be coated, and set the object to be prevented from moving on the tray. Is important.
  • the table can be vacuum-adsorbed, and if the object to be coated is adsorbed through the holes formed not only in the tray but also in the tray, more accurate positioning and fixing can be performed, and the table is heated. It is preferable because the heat transfer rate to the substrate is high.
  • the pins provided on the table should have holes pre-machined in the tray to enable positioning, and if the table is a heating table, vacuum suction on the table through a plurality of holes machined in the tray It is suitable from the viewpoint of heat conduction as well as fixing.
  • the tray material is selected from copper, aluminum, brass, etc. from the viewpoint of good heat transfer and cost, and silver, nickel plating etc. with heat conductivity and conductivity are preferable to them, and the object to be coated is semiconductor related When the added value of products or semi-finished products is high, stainless steel may be used, and ceramics such as aluminum nitride, silicon nitride, silicon carbide and alumina, which have higher thermal conductivity, may be used.
  • the tray made of the above-mentioned material with good thermal conductivity etc. should be as thin as possible, for example 1 mm or less, strongly on the table It is good to make it adsorb.
  • the tray In order to perform positioning more accurately, it is preferable to use linear expansion coefficients of the tray and the coated material that are comparable to each other, and the table is made of aluminum or copper or their system, and the surface is electroconductive nickel plated
  • the tray should be aluminum or copper or their system, and the surface such as gold, silver or nickel plating, which is also conductive in terms of safety in the booth and protection of objects to be coated from static electricity It is good to do processing.
  • a fluorine-based or ceramic-based surface coating on a table or tray it is preferable to make the coating impossible or allow the pins and holes to be grounded.
  • the mask may be adsorbed together with the object to be coated, but if it serves as a heavy stone, it should be a thick plate such as stainless steel, iron or spring steel with a high specific gravity, such as twice or more that of aluminum. It is preferable to carry out a ceramic film treatment or the like, and in the case of recovering a coating material attached to a mask, it is preferable to use a material such as ceramics which does not have the possibility of contamination to provide a surface with enhanced releasability. If you make the mask thicker, it will be easy to make shadows when you spray etc., so the part near the surface to be coated will be a sharp edge, for example at an angle of 45 degrees or less so that the effect will not come out It is good to process it.
  • a tray or a mask having a larger area than the object to be coated is used, and the coating material can be applied by an applicator which is less likely to scatter the coating material, so handling of the tray or mask becomes easy.
  • the structure of the automatic machine can be simplified in terms of desorption, which is advantageous in initial cost, but if any coating material adheres to the side of the tray, it is hardened in the baking process and extra time for peeling It is more preferable to make the mask wider than the tray because
  • a silicone-based binder, etc. usually with a thermosetting type, if the table temperature is 60 ° C. or less and curing is not promoted for a long time, the coating material attached to the mask is easy to use an ultrasonic cleaner when using a solvent It can be dissolved and washed, and solid content can be recovered and reused, but if curing or hardening accelerates, peeling becomes difficult.
  • the coating material is powder
  • the coating device is applied in stripes so that the powder does not scatter by applying, for example, JP-A-289955, and the powder supply method is the ejector method
  • the powder adhered to the tray or the mask can be removed by suction and removed for reuse.
  • the powder is made of a thermoplastic resin or a thermosetting resin, it can be heated for leveling to form a film, and if it does not contain a binder, the binder can be applied and set from the top of the powder layer.
  • the object to be coated is positioned and placed on a tray having a larger area than the total area of the objects to be coated, and the mask is similarly positioned and mounted on the tray.
  • the alignment holes may be inserted into pins provided on the tray so that the object or mask does not move during conveyance.
  • FIG. 1 is a schematic front cross-sectional view of an apparatus according to an embodiment of the present invention.
  • Figure 2 is a schematic front sectional view of a detail according to an embodiment of the present invention; It is a table (suction) top view concerning an embodiment of the invention. It is a top view of a tray concerning an embodiment of the invention. It is a top view of the to-be-coated-article on the tray which concerns on embodiment of this invention. It is a top view of the mask concerning an embodiment of the invention. It is sectional drawing of the side of the table, tray, to-be-coated-article, and mask which concern on embodiment of this invention.
  • FIG. 1 is a schematic plan view according to an embodiment of the present invention. 1 is a schematic front sectional view according to an embodiment of the present invention. It is a schematic front sectional view of an automatic coating device according to another embodiment of the present invention. It is a top view of the mask concerning an embodiment of the invention.
  • the object assembly 11 is stored in the magazine rack 102 and set in the unloader / loader apparatus 101, and the magazine rack 102 is moved up and down according to the downstream movement of the object and storage after application.
  • the object assembly is pushed by a pusher (push / pull mechanism) 103 and moved on a conveyor 106.
  • the workpiece assembly on the conveyor is stopped at the loading / unloading point lifted by the automatic machine 104 which is a handling device.
  • the workpiece assembly 11 is lifted by the claw 105 of the automatic machine, moved to the workpiece assembly mounting position above the table 5 and placed on the table 5.
  • the table may be heated or cooled if necessary, and in order to maintain positional reproducibility, it is preferable to adopt a structure capable of adsorbing the object after placement.
  • the to-be-coated-article assembly 11 on a table opens the shielding mechanism 116 in the coating booth 111, and moves by the Y-axis 114 connected with the table.
  • a shielding belt 115 moving along the Y axis 114 simultaneously with the table 5 is configured to shield the booth 111 and the lower part of the coating apparatus.
  • the mechanism 116 for shielding the booth and the outside is closed, and the object to be coated is applied by moving the Y axis with the applicator 112 connected to the X axis 113 orthogonal to the Y axis.
  • the applicator 112 may be a spray device. Furthermore, a pulsed spray device is preferable from the viewpoint of the deposition efficiency. Since the table 5 also moves synchronously with the application booth 111 and the belt 115 that shields the lower part of the booth, the exhaust system is a nearly closed system except for the intake port 170 upstream of the intake filter 190 and the exhaust port 160 downstream of the exhaust filter not shown. Since suction is performed by an exhaust device (not shown) connected downstream of the mouth, even if the applicator 112 is a spray device, the spray particles do not flow out of the coating booth or to other parts of the coating device 110 and adversely affect.
  • the substrate in the substrate assembly applied to the desired number of coating layers is moved to the mounting position of the substrate assembly, lifted by the substrate assembly 115 of the automatic machine, and moved onto the conveyor 106 And placed on the conveyor.
  • the coating material contains volatile matter such as a solvent
  • the table is preferably a heating table, and the table temperature is raised to 75 ° C. or less so that the coating does not have problems such as bumps due to solvent vapor or the like. It is preferable to make settings.
  • the workpiece assembly is accurately moved to the magazine rack by a conveyor such as a belt or chain by the hooks 108 of the hook moving device 107 moving in synchronization with the conveyor.
  • the pusher 103 may be a push and pull mechanism.
  • the object assembly 11 may place the object on the tray without the mask.
  • FIG. 2 shows a mechanism for moving the object to be coated after application from the conveyor 106 to the magazine rack.
  • the hooks 108 need to be raised when moving to the magazine rack and to be flipped when moving toward the application device 110.
  • FIG. 3 is a detailed view of the table 5, in which suction holes 31 for a tray, an object to be coated, etc. are processed, and pins 41 for positioning the tray etc. are provided.
  • the pins may be commercially available dowel pins, but if they are machined conically, even if the table is heated and the tray is at room temperature, placement of the tray is easy even if the automatic machine has some variations .
  • FIG. 4 shows a tray 33, in which a positioning pin hole 42 with the positioning pin 41 of the table of FIG. 3 is processed. Further, the object suction holes 32 are processed, and an object positioning pin 52 is also provided. In addition, a recess 85 for fitting a tab 205 for positioning when removing and conveying the tray is also processed.
  • FIG. 5 shows that the object to be coated 50 is placed on the tray 33, and the object to be coated 50 is positioned by the object positioning pins 52 of the tray. Furthermore, in order to adsorb the mask, holes may be drilled at the same position of the tray using the holes 51 of the substrate (suction holes 86 in FIG. 4).
  • FIG. 6 shows a mask 12 covering the object 50 of FIG.
  • the tray positioning pins 41 of the table of FIG. 3 pass through the positioning holes 42 of the tray of FIG. 5 and reach the positioning holes 43 of the mask. If the hole is drilled to half the thickness of the mask to shorten the length of the positioning pin, the positioning hole can not be penetrated. Further, the mask can be adsorbed by the mask suction holes 51 of the object 50 of FIG. In the case where the positioning pin 52 for an object to be coated shown in FIG.
  • the opening 48 for applying the mask may be the effective application area of the object 50 of FIG. 5 and the area is smaller than that of the object.
  • the tray 33, the object to be coated 50, and the mask 12 are positioned and placed on the table 5 in order.
  • the tray, the object to be coated, and the mask will be described below as the object assembly 11.
  • the inlets of a plurality of coating devices 1 are connected by a belt conveyor 10 for drying line.
  • the belt conveyor may be a chain conveyor.
  • the to-be-painted object assembly 11 of the tray, the to-be-coated object, and the mask is transferred from the unloader 7 by the belt conveyor 10 and transferred to the mounting position of the to-be-coated object assembly on the table 5 by the automatic machine 6 such as a robot at the inlet of the applicator.
  • the automatic machine 6 such as a robot at the inlet of the applicator.
  • the table is opened in the coating booth with the shielding means 116 at the coating booth 2 entrance open, and moved relative to the coating machine (not shown) to apply the coating material to the substrate.
  • the intake air to the application booth is taken in through the air intake port and discharged through an exhaust port (not shown) under the booth.
  • the air intake may be natural air intake, or forced air supply and exhaust (Push & Pull of air flow to the booth).
  • the coating weight is automatically measured in the coating weight measuring chamber to confirm that the coating weight is stable, and then the coating is stabilized in quality.
  • the coated object assembly is conveyed by the automatic machine 6 to the conveyor belt 10 at the entrance of the coating apparatus 1, and only the tray 12 is removed and conveyed to another conveyor belt moving in parallel with the conveyor line to be downstream of the coating machine Move to the line.
  • the substrate 50 on the tray 33 is conveyed by the conveyor belt 10 to the downstream baking oven 9 and the curing of the coating material is promoted by IR and hot air.
  • the mask used in the first coating machine is placed on the substrate 50 on the tray which has been moved from the baking oven to the next coating machine inlet, carried to the booth in the coating machine, and the coating material is laminated. Ru.
  • the mask used in the first application may be recovered and a new mask may be used.
  • the following coated object assemblies can also be automatically transported and applied one by one.
  • FIG. 9 shows the application type of FIG. 1 and after the application to the object to be coated is completed in the application booth 211, only the mask of the object assembly 11 which has moved to the object assembly mounting position of the table 5 is the automatic detaching device 205.
  • the substrate on the tray is moved under the baking means 200 to stop the tray adsorption on the table to heat the substrate. After heating for a desired time, the tray is adsorbed on the table, passes through the coating booth, moves to the position where the object to be coated is placed, and the mask is placed again on the object to be coated. Then, it moves to the booth 211 again and laminates the coating material. Since the mask is not heated by the baking means, the coating material adhered to the mask can be peeled off by the ultrasonic cleaning device and recovered and reused.
  • FIG. 10 shows a general coating apparatus, in which a substrate to be coated is placed on a tray from the loader 301 and conveyed, and a coating material is coated on the substrate by the coating unit 312 in the coating booth 311.
  • the object to be coated is placed on a table and is not heated, so the object to be coated placed on the tray is transported by being placed on a belt conveyor 330 or a chain. Therefore, a first-in first-out method is adopted as a flow operation, and after application, it is stored in a magazine rack of the unloader 302 or the like.
  • FIG. 11 shows a special mask.
  • a lead frame type LED or a ceramic substrate type LED is coated with phosphor only on the LED chip, it may not only be economical but also cause performance degradation such as generation of a yellow ring.
  • a mask made by etching or the like on a film or metal thin plate is adsorbed onto the substrate on such a substrate with a high mounting density of LEDs or laminated through an adhesive or the like, and a mask as shown in FIG. 6 is finally obtained.
  • the phosphor attached to the mask may be recovered and reused It is reasonable.
  • the opening may be a circle, an ellipse, or a polygon according to the shape of the LED.
  • an applicator sprays an air spray or a coating material into particles in a particle production apparatus and then transports and applies particles in a jet stream
  • their pattern width on the surface of a substrate such as an LED substrate is 1 to 15 mm. It is preferable to set the spray angle to 20 degrees or less so as to achieve an extent and to prevent rebound.
  • the tray or mask is made 1.5 times or more, preferably twice or more as large as the coating pattern, from the end face of the object to the end face, especially when using the aforementioned impact pulse method or micro curtain method There are no spray particles coming out of the
  • the coating method of the present invention can be applied to the formation of fuel cell electrodes such as PEFC.
  • the coating material can be used as a fuel cell electrode catalyst, and the object to be coated can be used as a GDL (gas diffusion layer) or an electrolyte membrane.
  • GDL gas diffusion layer
  • electrolyte membrane a thin film while heat-adsorbing the electrolyte membrane. Since the catalyst is expensive and has a risk of ignition, it is important not to scatter spray particles other than the tray and the mask.
  • the present invention even when using the spray method, it is not necessary to apply the coating material to the extent that the coating material sticks out from the tray on which the coating material is placed. Further, by using a mask, for example, expensive phosphors on the mask can be recovered and reused while maintaining high value-added LEDs with high quality, so that significant cost reduction can be achieved.

Abstract

Dans la présente invention, l'application de revêtement est automatisée de façon à appliquer un matériau de revêtement uniformément sur des sites désignés sur un objet (11) à recouvrir tout en garantissant que le matériau de revêtement n'adhère pas à des zones manipulées ou de la surface arrière de l'objet (11) à recouvrir. La zone d'un plateau (33) est conçue pour être plus grande que l'objet (11) à recouvrir, ledit objet (11) étant positionné et chargé sur le plateau (33), et le matériau de revêtement étant appliqué sur l'objet (11) à recouvrir. Du fait qu'un masque (12) est conçu pour avoir la même taille que celle du plateau (33) ou une taille supérieure et que l'application du revêtement est effectuée de sorte que le motif de revêtement ne dépasse pas le plateau (33) ou le masque (12), le matériau de revêtement n'adhère pas à la surface arrière du plateau (33). Du fait que l'objet (11) à recouvrir est manipulé lorsqu'il est chargé sur le plateau (33), une automatisation séquentielle de l'application du revêtement au séchage est possible.
PCT/JP2015/083194 2015-01-08 2015-11-26 Procédé d'application de revêtement WO2016111095A1 (fr)

Applications Claiming Priority (2)

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JP2015002152A JP6682059B2 (ja) 2015-01-08 2015-01-08 塗布方法
JP2015-002152 2015-01-08

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WO2016111095A1 true WO2016111095A1 (fr) 2016-07-14

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KR101741065B1 (ko) 2017-03-02 2017-05-29 (주)대길티에프 다단식 스프레이 코팅방법
CN106984496A (zh) * 2017-05-08 2017-07-28 厦门强力巨彩光电科技有限公司 一种喷三防生产设备及工艺
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