EP0704249B1 - Vorrichtung zur Verteilung pulverförmiger Feststoffe auf der Oberfläche eines Substrats zur Beschichtung dieses Substrates - Google Patents

Vorrichtung zur Verteilung pulverförmiger Feststoffe auf der Oberfläche eines Substrats zur Beschichtung dieses Substrates Download PDF

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Publication number
EP0704249B1
EP0704249B1 EP95402160A EP95402160A EP0704249B1 EP 0704249 B1 EP0704249 B1 EP 0704249B1 EP 95402160 A EP95402160 A EP 95402160A EP 95402160 A EP95402160 A EP 95402160A EP 0704249 B1 EP0704249 B1 EP 0704249B1
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Prior art keywords
powder
gas
flow rate
nozzle
pneumatic means
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Expired - Lifetime
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EP95402160A
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English (en)
French (fr)
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EP0704249A1 (de
Inventor
Jean-François Oudard
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Saint Gobain Vitrage SA
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Saint Gobain Vitrage SA
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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
    • 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
    • B05B7/14—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 designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • 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
    • B05B12/04—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets
    • 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
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • 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
    • B05B7/14—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 designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1477—Arrangements for supplying particulate material means for supplying to several spray apparatus
    • 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
    • B05B7/14—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 designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state

Definitions

  • the present invention relates to a device for distributing pulverulent solids on the surface of a substrate, especially glass, in order to coat it with thin layers likely to give it optical, thermal or electrical properties.
  • This device allows in particular to deposit these thin layers by a technique so-called powder pyrolysis consisting in spraying said pulverulent solids (generally organo-metallic compounds), suspended in a gas, towards a substrate heated to a high temperature, so that they decompose (usually in the form metal oxide) on contact.
  • the substrate can take the form of a glass ribbon continuous said float, leaving the glass float enclosure, the device then comprising usually a nozzle having a cavity which passes right through it and which ends in a distribution slot above the ribbon and transversely to its axis of scrolling, the nozzle being equipped with suitable powder supply means.
  • the float glass ribbon to be covered usually has a width of at least 2 meters, in particular of the order of three to four meters. So it's on this width, which is considerable, that the nozzles have to distribute the gas / powder suspension in the most homogeneous possible to ensure, at least transversely to the axis of travel of the tape, a certain consistency in the quality and / or thickness of the coating deposited. Many studies have already been carried out, aiming either at the design of the nozzle itself, or its powder supply mode, to best guarantee this homogeneity.
  • patent EP-B-0 130 919 has developed an efficient distribution means allowing a fairly uniform subdivision of a vein of powder in suspension conveyed in a single supply duct in a plurality of powder veins conveyed in as many secondary conduits coming to feed the nozzle over its entire width by through feeders called injectors into which they open. he however, it is difficult to guarantee that each of the veins has a perfect identity with all the others, in terms of flow rate of powder transported, and that all of the veins will be able to “melt” into a perfectly homogeneous powder flow at the level from the nozzle distribution slot.
  • Patent EP-B-0 392 902 then proposed a device making it possible to modify automatically the relative positions of the injectors arranged in line at the inlet of the nozzle, removing or moving the injectors concerned as soon as a variation is detected of local thickness in the coating deposited “downstream” from the nozzle.
  • This solution gives interesting results, but is not yet fully optimal, firstly because it may seem a little complicated to implement, then and above all because it tries to compensate for any disparities in flow from the secondary veins without correcting them truly.
  • the object of the invention is therefore to further improve the operating mode of the powder distribution devices of this type, and in particular to optimize the homogeneity of the flow of the powder-gas suspension in the nozzle without sacrificing too much simplicity of implementation, in order to obtain quality coatings, particularly in terms of thickness consistency.
  • the subject of the invention is a device for distributing powdered solid in suspension in a gas, in order to deposit a coating, in particular by pyrolysis, on a moving substrate, in particular of the float glass ribbon type.
  • This device includes on the one hand, a dispensing nozzle whose walls define a cavity which ends in a longitudinal distribution slot. It also includes a main duct powder feed provided with a distribution means. A plurality of conduits secondary powder supply connected to this main conduit using the means of distribution allows the nozzle cavity to be supplied with powder over its entire length.
  • at least part of the secondary conduits is equipped with at least one means pneumatic capable of modulating the flow rate of the powder-gas suspension that each of the conduits secondary concerned is intended to convey.
  • each of the conduits is equipped of such pneumatic means.
  • This solution has two major advantages: on the one hand, being able to modulate the flow in each of the conduits will make it possible to truly correct and directly any differences in flow between the gas-powder mixture streams that they carry into the nozzle, and thus ensure a very even distribution in the powder supply at the nozzle, over the entire length of its cavity. Else on the other hand, use a pneumatic and non-mechanical means to operate these modulations debit is very advantageous.
  • a mechanical means of the valve type operates on the principle of partial obturation of the duct, obturation which, in the case of a flow of powder, causes untimely local accumulations of powder, clogging or engorgement which can cause sudden and uncontrolled high loss of load in flow.
  • a pneumatic means allows to modulate a mixing flow powder-gas in a fine and controlled manner and can be adjusted with very short response times short, with appropriate adjustment means, which can be manual or automated.
  • These means if chosen automated, can advantageously be part of a regulation loop, under control of a control unit connected to at least one means of measuring quality or thickness on the coating deposited on the substrate, using the dispensing nozzle. If it is a float glass ribbon, the regulation in the powder flow rates from secondary conduits can be carried out continuously, adjusting very quickly the flow of the appropriate secondary conduit (s) using their means tires as soon as a change in transverse thickness in the coating is detected deposited on the tape just downstream of the nozzle.
  • pneumatic means can be presented simply in the form of auxiliary supply conduits opening into the secondary conduits, supplied auxiliaries which are advantageously provided with a manual regulation means or automated gas flow or pressure, using for example valves. Insofar where they only carry gas, this type of mechanical adjustment means does not problem.
  • These feeds thus introduce into the flow of the powder-gas mixture secondary conduits a jet of gas whose characteristics are controlled in order to create there a controlled pressure drop then allowing the flow to be more or less reduced when this is necessary. Thanks to an appropriate distribution means, the quantity of powder which is no longer carried by the conduit due to this induced reduction in flow will be able to distribute homogeneously on all the other secondary conduits.
  • These secondary conduits can advantageously include pipes, preferably flexible, connected by means of distribution of the main supply duct, pipes whose ends opening out at the entrance to the nozzle cavity are constituted by rigid supply members called “injectors”, and preferably metallic.
  • the means for supplying auxiliary gases can then lead into the secondary conduits at any point, either at the level of these (flexible) pipes, downstream means for distributing the main duct, either near or in the nozzle, in particular at the pipe-injector junction or at the injector itself. It is this latter configuration which is more favorable, because the rigid injector allows Easy and safe "connection" of the auxiliary gas supply.
  • a preferred embodiment of the invention thus consists of a device for distribution, where each of the secondary conduits intended to carry the suspensions powder-gas is fitted at its end with an injector, the injectors being regularly arranged in line in the inlet opening of the nozzle cavity over its entire length and all having an auxiliary gas supply with variable flow.
  • the cavity of the nozzle is also provided with means for injecting pressurized gas to drive the powder-gas suspension emitted by the injectors in the cavity, means for injecting preferably arranged symmetrically on either side of the injector line. So, the powder supply of the nozzle is doubly optimized.
  • the invention also relates to the method for implementing the device. previously described, and in particular the various ways of controlling and regulating pneumatic means equipping the secondary conduits.
  • these pneumatic means are in the form of auxiliary gas inlets opening into the conduits, can thus adjust each of the auxiliary gas jet flow rates separately for each of them, and this in a range of flow rates which can range for example between 0 and 100% of a predetermined flow value.
  • These jets of gas must indeed have an action of "Braking" of the flow of powder in the duct, in order to create a pressure drop there and not a depression which would cause an acceleration of the flow. Debits, speeds and directions of injection of these jets of auxiliary gas compared to those of the flow of powder-gas mixture must therefore be carefully selected.
  • a first possibility is to operate "all or nothing". If no disparity local duct flow rates, resulting in a local variation in thickness of the coating, is detected, the flow rate of these auxiliary gas jets is zero. If a disparity appears, locally causing excess thickness in the coating, the means pneumatic of the secondary duct (s) involved intervenes to deliver a jet of auxiliary gas of suitable flow rate which cannot exceed a certain value, in order to decrease the powder flow rate of the duct (s) sufficiently to eliminate this excess thickness.
  • a second possibility is to permanently operate all of the pneumatic means, which all emit, when no disparity is detected, a jet of auxiliary gas of given flow. They therefore all exert a certain “braking” effect. permanent on the powder-gas mixture flows in the conduits, which can be compensate if necessary by adapting the flow rate of powder-gas mixture in the main supply duct. It is thus possible to regulate the flow rate of the gas jets auxiliary around this given flow value.
  • This operating mode is more flexible and leaves more room for maneuver, since we can also correct local coating thicknesses (by increasing the gas jet emission rate suitable auxiliary) than local decreases in thickness of said coating (in this time decreasing the emission rate of the appropriate auxiliary gas jet).
  • the flow value around which regulates the flow rate of each of the auxiliary gas jets is approximately 20 to 60% of the average gas flow rate of the powder-gas suspension carried by each of the conduits secondary.
  • a value of around 50% is chosen, with regulation of the flow rate of each of the auxiliary gas jets of ⁇ 50% around this value.
  • the device and method for implementing the latter can be advantageously used in view of depositing coatings based on metal oxide, by pyrolysis on a strip of hot float glass, in particular coatings of doped oxides of SnO 2 type: F, for example from a powder of dibutyltin difluoride (DBTF) or of the ITO type from powder of indium formate and tin dibutyloxide.
  • DBTF dibutyltin difluoride
  • ITO indium formate and tin dibutyloxide.
  • the installation as shown as a whole in FIG. 1 makes it possible to distribute regularly powdery solids of all kinds on various substrates, especially large dimensions.
  • it is used to distribute a powder of organo-metallic compounds on a ribbon 1 of float glass hot out of the floating bath enclosure, ribbon running on a bed of rollers 2 according to a given axis at a uniform speed.
  • the powder thus brought into contact with the glass surface hot decomposes there to leave a coating based on metal oxide (s).
  • the nozzle 24 of the installation shown in FIG. 2 is likewise a optimization of that described in patent EP-0 374 023.
  • the following is to describe more particularly the characteristics relating specifically to the invention. For more of information concerning the operation of the installation in general and of the nozzle in particular, one will therefore advantageously relate to these two patents, as well as to other previously cited patents.
  • the installation according to FIG. 1 therefore represents a hopper 3 for storing powder 4 to be dispensed, a mixer 5 in which the powder-gas mixture is produced, generally of air in order to constitute a suspension as homogeneous as possible of the powder in the gas using an air inlet 25 and a worm screw 26 supplied with powder by the hopper 3.
  • a main intake duct 6 conveys the powder-gas suspension at the outlet of the mixer 5, a distribution means 7 subdividing the single stream of powder-gas suspension brought through line 6 into a plurality of secondary veins as uniform as possible, a plurality of flexible secondary conduits 8 conveying these up to the dispensing nozzle 24.
  • This nozzle is arranged transversely to the axis of travel of the glass ribbon 2 and defines a transverse cavity whose length corresponds to the width tape to be coated.
  • the secondary conduits 8 open into metal injectors 9 arranged in line at the entrance of this cavity.
  • a partition 16 forming a spacer, provided with a gas passage means for example using porous materials and through orifices 17.
  • the chambers 18 located in the upper part of the nozzle open into the cavity 11 through slots 19 near the injectors 9, so as to inject the gas under pressure substantially parallel to the walls 12, slots limited by lips 20, of suitable configuration.
  • each of the injectors 9 consists schematically of a hollow metal cylinder into which each of the secondary conduits 8 of waterproof way.
  • These injectors further include an air type gas inlet under form of an auxiliary conduit 22 coming into it, preferably with a configuration such between injector 9 and line 22 that the jet of powder-gas mixture in the injector and the gas jet that can emit the conduit 22 in the injector 9 make an angle between them a between 5 and 90 °, preferably around 30 °. It is indeed preferable that this angle remains below 90 ° to avoid any risk of traces of powder seeping into the conduit 22, traces which can in particular disrupt the proper functioning of the means of flow adjustment that equip it.
  • Each auxiliary conduit 22 is supplied by a source of suitable gas not shown.
  • each of the conduits 22 can modulate the gas jet flow conveyed by each of the conduits 22 in the powder-gas flow of each of the injectors, individually, using regulation loop.
  • Each of the conduits connected to a source of gas, in particular air, external to the nozzle is provided with a flow control means of the solenoid valve type.
  • This means of adjustment (for example of the flow meter type associated with a magnetic valve) is controlled by a control unit according to the thickness variations detected in downstream of the nozzle on the coating 23.
  • This detection can be carried out continuously or by time interval given using one or more thickness measurement means of the type reflectometers (a reflectometer mounted mobile above the glass ribbon in order to "Sweep" the width of the coating, ie several reflectometers arranged in line above ribbon.
  • the mode of operation of the nozzle 24 is explained with the aid of an implementation example, consisting in depositing a layer of SnO 2 : F 200 nm thick from a tin dibutyldifluoride powder. (DBTF).
  • the mass flow rate of DBTF powder conveyed in the main supply conduit 6 is between 3 and 10 kg / hour / linear meter of nozzle.
  • the volume flow rate of the gas in which it is suspended is between 3 and 80 m 3 / hour / linear meter of nozzle.
  • the flow of pressurized gas injected through the slots 19 into the cavity is between 200 and 500 m 3 / h / linear meter of nozzle.
  • each secondary duct would carry a gaseous vein whose mass flow rates D.B.T.F. and gas volume would be exactly equal to the ratio of those of the suspension conveyed in the main supply duct on the number of ducts secondary.
  • differences in flow can appear between the jets of powder-gas mixture from each of the injectors 9, deviations leading to extra thicknesses or on the contrary local decreases in the thickness of coating deposited compared to the average thickness of 200 nm sought.
  • These transverse variations in thickness of the coating are detrimental to its quality, because they can, in particular, cause optical defects, of the iridescent type, unattractive.
  • a powder-gas flow from the secondary conduit 8 is continuously passing through each of the injectors 9, presenting a gas flow rate of approximately 2 m 3 / h and a gas jet emitted by the auxiliary conduit 22 d ' a given gas volume flow rate, in particular around 1 m 3 / h.
  • the control unit controls the valve of the line (s) 22 of the injectors 9 concerned to reduce the flow rate of the auxiliary gas jet .
  • the flow rate of each of the auxiliary gas jets can vary between for example 0.5 and 1.5 m 3 / h.
  • the control unit (or the operator) can use charts giving direct correspondences between variation in thickness in the coating and variation in flow rate in conduits 22, without even having to measure precisely the flow rates of powder passing in the conduits 8 then the injectors 9.
  • any irregularity in the thickness of the coating can thus be quickly corrected, remotely, manually, automatically or semi-automatically.
  • the regulation flow rate of the powder-gas suspension coming from each of the conduits secondary 8 is carried out by the auxiliary gas jet of each of the conduits 22, without any clogged or clogged secondary duct problem or detrimental impact on the supply of the other secondary conduits.
  • the powder flow in the secondary duct 8 adhoc is reduced to rectify an excess thickness in the coating, the “excess powder” not delivered by the conduit of which we reduced the flow will be distributed regularly on all the other conduits at the level means of distribution.
  • the mode of supply of powder uses the pneumatic means of the invention to improve uniformity in the thickness of the coating deposited. But we could just as well, without leaving the framework of the invention, use these pneumatic means to create, this time so voluntary and controlled, gradients in the thickness of the coating deposited, at all less transversely to the axis of travel of the substrate, if this proved useful or advantageous to manufacture coatings having such characteristics.

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  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Surface Treatment Of Glass (AREA)
  • Glanulating (AREA)
  • Coating Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Claims (13)

  1. Vorrichtung zur Verteilung eines in einen Gas suspendierten pulverförmigen Feststoffs, um, insbesondere durch Pyrolyse, auf einem vorbeilaufenden Substrat, speziell einem Floatglasband (1), eine Beschichtung (23) aufzubringen, wobei die Vorrichtung eine Verteilerdüse (24), deren Wände (12) einen Hohlraum (11) begrenzen, der in einen Längsverteilerschlitz (13) ausläuft, und ein System für die Versorgung dieser Düse mit Pulver umfaßt, das eine Pulver-Hauptzuleitung (6) enthält, die mit einem Verteilungsmittel (7) und einer Vielzahl von Pulver-Nebenzuleitungen (8) versehen ist, welche an die Hauptzuleitung mittels des Verteilungsmittels angeschlossen sind und es ermöglichen, den Hohlraum (11) über dessen gesamte Länge mit Pulver zu versorgen, dadurch gekennzeichnet, daß wenigstens ein Teil der Nebenzuleitungen (8) mit mindestens einem pneumatischen Mittel (22) ausgestattet ist, das in der Lage ist, den Durchsatz der Pulver-Gas-Suspension zu verändern, welche die betreffenden Nebenzuleitungen transportieren.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das pneumatische Mittel einen Druckverlust erzeugen kann, der von manuellen oder automatisierten Mitteln zur Regelung des pneumatischen Mittels kontrolliert wird.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Mittel zur Regelung des pneumatischen Mittels Teil eines Regelkreises unter Steuerung einer Kontrolleinheit sind, die an mindestens ein Mittel zur Messung der Qualität oder Dicke der auf das Substrat aufgebrachten 3eschichtung angeschlossen ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das pneumatische Mittel, mit welchem die Nebenzuleitungen (8) ausgestattet sind, mindestens eine Hilfsgaszuleitung (22) enthält, die in jede dieser Leitungen mündet.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß jede Hilfsgaszuleitung (22) mit einem Mittel zur Regelung des Gasdurchsatzes oder -drucks versehen ist.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Nebenzuleitungen (8) vorzugsweise nachgiebige Leitungen enthalten, deren Ende, das in den Eingang des Düsenhohlraums mündet, aus einem starren, insbesondere metallischem Injektor (9) besteht.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die pneumatischen Mittel Hilfsgaszuleitungen (22) enthalten, welche in die Nebenzuleitungen (8) an einem beliebigen Punkt der Leitung, an der Verbindung Leitung-Injektor oder am Injektor (9) münden.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jede der Nebenzuleitungen (8), welche die Pulver-Gas-Suspension transportieren, am Ende mit einem Injektor (9) versehen ist, wobei die Injektoren der Leitungen regelmäßig nebeneinander in der Eingangsöffnung des Hohlraums (11) der Düse über deren gesamter Länge angeordnet und mit einer Hilfsgaszuleitung (22) mit veränderbarem Gasdurchsatz versehen sind, und daß der Bohlraum (11) der Düse (24) ebenfalls mit vorzugsweise symmetrisch auf beiden Seiten der Injektorlinie angeordneten injektionsmitteln (19) für Druckgas versehen ist, um die von den Injektoren (9) abgegebene Pulver-Gas-Suspension mitzureißen.
  9. Verfahren zur Anwendung der Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die pneumatischen Mittel in die jeweilige Nebenzuleitung (8) einen Gasstrahl blasen, und daß der jeweilige Durchsatz der Strahlen getrennt geregelt wird und eine Höhe zwischen 0 und 100 % eines vorgegebenen Durchsatzes annehmen kann.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß die pneumatischen Mittel ständig einen Gasstrahl abgeben, dessen Durchsatz um eine vorgegebene Höhe geregelt wird.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß die Höhe, um welche der Durchsatz jedes Gasstrahls geregelt wird, der von den pneumatischen Mitteln abgegeben wird, etwa 20 bis 60 % und insbesondere 50 % des mittleren Gasdurchsatzes der jeweils von den Nebenzuleitungen (8) transportierten Pulver-Gas-Suspension beträgt.
  12. Verfahren nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß die Höhe des Durchsatzes jedes der von den pneumatischen Mitteln abgegebenen Strahlen in Abhängigkeit von den Dickenschwankungen geregelt wird, welche in der Beschichtung (23) gemessen werden, die nach der Verteilerdüse (24) aufgebracht wird.
  13. Anwendung der Vorrichtung nach einem der Ansprüche 1 bis 8 oder des Verfahrens nach einem der Ansprüche 9 bis 12 zum Aufbringen von Metalloxidbeschichtungen (23), insbesondere Beschichtungen aus dotierten Oxiden wie SnO2:F ausgehend von Dibutylzinndifluorid-Pulver oder ITO ausgehend von Indiumformiat- und Dibutylzinnoxidpulver durch Pyrolyse auf ein heißes Floatglasband (1).
EP95402160A 1994-09-27 1995-09-27 Vorrichtung zur Verteilung pulverförmiger Feststoffe auf der Oberfläche eines Substrats zur Beschichtung dieses Substrates Expired - Lifetime EP0704249B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411504 1994-09-27
FR9411504A FR2724853B1 (fr) 1994-09-27 1994-09-27 Dispositif de distribution de solides pulverulents a la surface d'un substrat en vue d'y deposer un revetement

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EP0704249A1 EP0704249A1 (de) 1996-04-03
EP0704249B1 true EP0704249B1 (de) 2000-01-26

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US (1) US5795388A (de)
EP (1) EP0704249B1 (de)
JP (1) JPH08169728A (de)
DE (1) DE69514743T2 (de)
ES (1) ES2144111T3 (de)
FR (1) FR2724853B1 (de)
PT (1) PT704249E (de)

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US20060003095A1 (en) * 1999-07-07 2006-01-05 Optomec Design Company Greater angle and overhanging materials deposition
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TWI482662B (zh) 2007-08-30 2015-05-01 Optomec Inc 機械上一體式及緊密式耦合之列印頭以及噴霧源
EP3256308B1 (de) 2015-02-10 2022-12-21 Optomec, Inc. Herstellung dreidimensionaler strukturen durch härtung während des fluges von aerosolen
CN111655382B (zh) 2017-11-13 2022-05-31 奥普托美克公司 气溶胶流的阻挡
CN111795553B (zh) * 2020-07-07 2022-03-29 广西大学 一种防污染脱水的辅助装置及其应用方法

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CH640157A5 (fr) * 1981-04-01 1983-12-30 Castolin Sa Dispositif de distribution de materiaux en forme de poudre pour une installation de projection thermique.
DK160745C (da) 1983-03-14 1991-09-30 Saint Gobain Vitrage Fremgangsmaade ved og dyse til fordeling af et pulverformet materiale paa et underlag
FR2548556B1 (fr) * 1983-07-04 1985-10-18 Saint Gobain Vitrage Dispositif de distribution de produits pulverulents en suspension dans un gaz
FR2640164B1 (fr) 1988-12-14 1991-02-01 Saint Gobain Vitrage Dispositif de distribution d'un solide pulverulent en suspension dans un gaz sur un substrat en defilement
FR2645773B1 (fr) 1989-04-12 1991-08-30 Saint Gobain Vitrage Procede pour modifier les positions relatives d'une pluralite d'organes alignes et dispositif pour la mise en oeuvre de ce procede
DE19502741C2 (de) * 1995-01-18 1997-04-03 Alexander Ghantus Einrichtung zur Erzeugung eines Stromes aus einem Pulver-Gas-Gemisch

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DE69514743T2 (de) 2000-07-27
PT704249E (pt) 2000-07-31
FR2724853B1 (fr) 1996-12-20
US5795388A (en) 1998-08-18
JPH08169728A (ja) 1996-07-02
DE69514743D1 (de) 2000-03-02
FR2724853A1 (fr) 1996-03-29
ES2144111T3 (es) 2000-06-01
EP0704249A1 (de) 1996-04-03

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