EP0704249A1 - 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

Info

Publication number
EP0704249A1
EP0704249A1 EP95402160A EP95402160A EP0704249A1 EP 0704249 A1 EP0704249 A1 EP 0704249A1 EP 95402160 A EP95402160 A EP 95402160A EP 95402160 A EP95402160 A EP 95402160A EP 0704249 A1 EP0704249 A1 EP 0704249A1
Authority
EP
European Patent Office
Prior art keywords
gas
powder
flow
nozzle
conduits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95402160A
Other languages
English (en)
French (fr)
Other versions
EP0704249B1 (de
Inventor
Jean-François Oudard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Vitrage SA
Original Assignee
Saint Gobain Vitrage SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Vitrage SA filed Critical Saint Gobain Vitrage SA
Publication of EP0704249A1 publication Critical patent/EP0704249A1/de
Application granted granted Critical
Publication of EP0704249B1 publication Critical patent/EP0704249B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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 powdery solids on the surface of a substrate, in particular glass, in order to coat it with thin layers capable of giving it optical, thermal or electrical properties.
  • This device makes it possible in particular to deposit these thin layers by a technique known as powder pyrolysis consisting in spraying said pulverulent solids (in general organo-metallic compounds), in suspension in a gas, in the direction of a substrate heated to high temperature, so that they decompose (usually in the form of metal oxide) on contact.
  • the substrate can take the form of a continuous ribbon of glass called float, at the exit from the glass float enclosure, the device then usually comprising a nozzle comprising a cavity which passes right through it and which ends in a distribution slot above the ribbon and transversely to its axis of travel, 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. It is therefore over this width, which is considerable, that the nozzles have to distribute the gas / powder suspension in the most homogeneous manner possible to ensure, at least transversely to the axis of travel of the ribbon, a certain consistency in the quality and / or thickness of the coating deposited.
  • Many studies have already been carried out, aiming either at the very design of the nozzle, or at its mode of supplying powder, to best guarantee this homogeneity.
  • patent EP-B-0 130 919 has developed an efficient distribution means making it possible to fairly uniformly subdivide a vein of powder in suspension conveyed in a single supply duct into a plurality of powder veins conveyed in as many secondary conduits coming to feed the nozzle over its entire width by means of supply members called injectors into which they open. It is however 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 stream of powder at the level of the nozzle distribution slot.
  • Patent EP-B-0 392 902 then proposed a device making it possible to automatically modify the relative positions of the injectors arranged in line at the inlet of the nozzle, by removing or bringing together the injectors concerned as soon as a variation 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 the flow of the veins. without really correcting them.
  • the object of the invention is therefore to further improve the operating mode of powder distribution devices of this type, and in particular to achieve optimization of 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 regularity.
  • the subject of the invention is a device for distributing powdery solid suspended in a gas, with a view to depositing 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 dispensing slot. It also comprises a main powder supply pipe provided with a distribution means.
  • a plurality of secondary powder supply conduits connected to this main conduit by means of distribution means makes it possible to supply powder to the cavity of the nozzle over its entire length.
  • at least part of the secondary conduits is equipped with at least one pneumatic means capable of modulating the flow rate of the powder-gas suspension that each of the secondary conduits concerned is intended to convey.
  • each of the conduits is equipped with such a pneumatic means.
  • This solution has two major advantages: on the one hand, being able to modulate the flow rate in each of the conduits will make it possible to genuinely and directly correct any disparities in flow rate between the gas-powder mixture streams that they transport to the nozzle, and thus ensuring a very regular distribution in the powder supply at the nozzle, over the entire length of its cavity.
  • using pneumatic rather than mechanical means to operate these flow modulations is very advantageous.
  • a mechanical means of the valve type operates on the principle of a partial blockage of the conduit, a blockage which, in the case of a flow of powder, causes untimely local accumulations of powder, blockages or blockages which can cause sudden and uncontrolled high pressure losses in the flow.
  • a pneumatic means makes it possible to modulate a flow rate of powder-gas mixture in a fine and controlled manner and can be adjusted with very short response times, with appropriate adjustment means, which can be manual or automated.
  • These means if they are chosen to be automated, can advantageously form part of a regulation loop, under the control of a control unit connected to at least one quality or thickness measurement means on the coating deposited on the substrate, using the dispensing nozzle.
  • the regulation in the powder flow rates of the secondary conduits can be carried out continuously, by very quickly adjusting the flow rate of the appropriate secondary conduit (s) using their pneumatic means. as soon as a variation in transverse thickness is detected in the coating deposited on the strip just downstream of the nozzle.
  • pneumatic means may simply be in the form of auxiliary supply conduits opening into the secondary conduits, auxiliary supply which is advantageously provided with a manual or automated means for regulating gas flow or pressure, using for example valves. Insofar as they only carry gas, this type of mechanical adjustment means does not cause any problems.
  • These feeds thus introduce a flow of gas into the flow of the powder-gas mixture from the secondary conduits, the characteristics of which are controlled in order to create a controlled pressure drop thereby allowing the flow to be more or less reduced when necessary. . Thanks to an appropriate distribution means, the quantity of powder which is no longer conveyed by the conduit due to this induced reduction in flow rate will be able to be distributed homogeneously over all the other secondary conduits.
  • These secondary conduits may advantageously comprise pipes, preferably flexible, connected to the distribution means of the main supply pipe, pipes whose ends opening out at the entrance to the cavity of the nozzle are constituted by supply members called " rigid injectors, preferably metallic.
  • the auxiliary gas supply means can then open into the secondary conduits at any point, either at the level of these (flexible) pipes, “downstream” from the distribution means of the main conduit, 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, since the rigid injector allows an easy and safe "connection" of the auxiliary gas supply.
  • a preferred embodiment of the invention thus consists of a distribution device, where each of the secondary conduits intended to convey the powder-gas suspensions is provided at its end with an injector, the injectors being regularly arranged in line in the inlet port of the nozzle cavity over its entire length and all being provided with an auxiliary gas supply with variable flow.
  • the nozzle cavity is also provided with means for injecting pressurized gas to drive the powder-gas suspension emitted by the injectors into the cavity, means for injecting preferably arranged symmetrically on either side of the injector line.
  • the invention also relates to the method of implementing the device described above, and in particular the various ways of controlling and regulating the pneumatic means equipping the secondary conduits.
  • these pneumatic means are in the form of auxiliary gas inlets opening into the conduits, it is thus possible to 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 from example between 0 and 100% of a predetermined flow value. It is indeed necessary that these gas jets have a “braking” action on the flow of powder in the conduit, in order to create a pressure drop there and not a depression which would cause an acceleration of the flow.
  • the injection rates, speeds and directions of these auxiliary gas jets relative to those of the powder-gas mixture flow must therefore be carefully selected.
  • a first possibility is to operate "all or nothing". If no local disparity in the flow rates of the conduits, resulting in a local variation in coating thickness, is detected, the flow rate of these jets of auxiliary gas is zero. If a disparity appears, locally causing excess thickness in the coating, the pneumatic means of the secondary conduit or conduits involved intervenes to deliver an auxiliary gas jet of suitable flow rate which cannot exceed a certain value, in order to sufficiently reduce the powder flow rate of the or conduits to remove this excess thickness.
  • a second possibility is to permanently operate all of the pneumatic means, which all emit, when no disparity is detected, an auxiliary gas jet of given flow rate. They therefore all exert a certain permanent “braking” effect on the flows of powder-gas mixture in the conduits, which can be compensated for if necessary by adapting accordingly the flow rate of powder-gas mixture in the main supply conduit. . 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 it is possible to correct both local coating thicknesses (by increasing the emission rate of the appropriate auxiliary gas jet) as well as local thickness decreases said coating (this time reducing the emission rate of the appropriate auxiliary gas jet).
  • the flow value around which the flow of each of the auxiliary gas jets is regulated is approximately 20 to 60% of the average gas flow of the powder-gas suspension conveyed by each. secondary ducts.
  • a value of around 50% is chosen, with a regulation of the flow rate of each of the auxiliary gas jets of ⁇ 50% around this value.
  • the term “average” flow is understood to mean their theoretical flow, if no disparity in flow between conduits could exist.
  • 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 SnO2 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 regularly distribute pulverulent 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 hot float glass leaving the enclosure of the floating bath, ribbon passing over a bed of rollers 2 according to a axis given at a uniform speed.
  • the powder thus brought into contact with the surface of the hot glass decomposes therein to leave a coating based on metal oxide (s).
  • the installation according to FIG. 1 therefore represents a hopper 3 for storing powder 4 to be distributed, a mixer 5 in which the powder-gas mixture is produced, generally air in order to constitute a suspension as homogeneous as possible of the powder in the gas by means of an air inlet 25 and an endless screw 26 supplied with powder by the hopper 3.
  • a main inlet duct 6 conveys the powder-gas suspension at the outlet of the mixer 5, a distribution means 7 subdividing the single powder-gas suspension stream brought by the pipe 6 into a plurality of secondary streams as uniform as possible, a plurality of flexible secondary pipes 8 conveying these to the nozzle distribution 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 of the ribbon to be coated.
  • the secondary conduits 8 open into metal injectors 9 arranged in line at the entrance to this cavity.
  • injectors 9 projecting a stream of gas-powder mixture at the inlet 10 of the cavity 11 defined by the inner walls 12 of the nozzle, flat walls and slightly convergent to the distribution slot 13 located a few millimeters from the surface of the glass ribbon 1.
  • Means for injecting gas under pressure are also provided on either side of the line of injectors 9, in order to facilitate the “curtain” distribution of powder and the driving of the powder-gas suspension jets coming from the injectors 9.
  • These means are formed by a series of chambers 14 located symmetrically in the nozzle body and connected by a ramp 15 to a source of gas, air in general.
  • chambers are interconnected by a partition 16 forming a spacer, provided with a means for passing gas, for example using porous materials, and by orifices 17.
  • the chambers 18 located in the upper part of the nozzle open into the cavity 11 by 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 opens in a sealed manner.
  • These injectors further include an air type gas inlet in the form of an auxiliary conduit 22 coming into it, preferably with a configuration such between injector 9 and conduit 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 between them an angle a between 5 and 90 °, preferably about 30 °. It is in fact preferable that this angle remains less than 90 ° in order to avoid any risk of traces of powder seeping into the duct 22, traces which can in particular disturb the proper functioning of the flow control means which equip it .
  • Each auxiliary duct 22 is supplied by a suitable gas source, not shown.
  • 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 adjustment means (for example of the flow meter type associated with a magnetic valve) is controlled by a control unit as a function of the thickness variations detected downstream of the nozzle on the coating 23.
  • This detection can be carried out by continuous or by time interval given using one or more means of thickness measurement of the reflectometers type (either a reflectometer mounted movable above the glass ribbon in order to “sweep” the width of the coating, or several reflectometers arranged in line above the ribbon.
  • the mode of operation of the nozzle 24 is explained with the aid of an implementation example, consisting of depositing a layer of SnO2: F 200 nm thick from a tin dibutyldifluoride powder (DBTF).
  • the mass flow of powder of D.B.T.F. 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 m3 / hour / linear meter of nozzle.
  • the flow of pressurized gas injected through the slots 19 into the cavity is between 200 and 500 m3 / h / linear meter of nozzle.
  • each secondary conduit would convey a gas stream whose mass flow rates in 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 to the number of secondary ducts.
  • differences in flow can appear between the jets of powder-gas mixture coming from each of the injectors 9, differences leading to excess thicknesses or, on the contrary, local decreases in the thickness of coating deposited relative to the average thickness of 200 nm sought.
  • These transverse variations in the thickness of the coating are detrimental to its quality, because they can, in particular, cause optical defects, of the iridescence type, which are not very aesthetic.
  • a powder-gas flow coming from the secondary pipe 8 is constantly passing through each of the injectors 9, presenting a gas flow rate of approximately 2 m3 / h and a gas jet emitted by the auxiliary pipe 22 of a volume flow rate in given gas, in particular around 1 m3 / 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 m3 / h.
  • the control unit (or the operator) can use charts giving direct correspondence between thickness variation in the coating and flow variation in the conduits 22, without even having to measure precisely the flow rates of powder which pass in the conduits 8 then the injectors 9.
  • any irregularity in the thickness of the coating can thus be quickly corrected, remotely, manually, automated or semi-automated.
  • the flow control of the powder-gas suspension coming from each of the secondary conduits 8 is regulated by the auxiliary gas jet of each of the conduits 22, without any problem of clogging or clogging of the secondary conduit or of detrimental impact on the supply of other secondary conduits.
  • the powder flow is reduced in the secondary duct 8 adhoc to correct an excess thickness in the coating, the “excess powder” not delivered by the duct, the flow of which has been reduced will be distributed regularly on all the other conduits at the level of the distribution means.
  • the powder supply mode uses the pneumatic means of the invention in order to improve the uniformity in the thickness of the coating deposited. But we could just as easily, without departing from the scope of the invention, use these pneumatic means to create, this time in a voluntary and controlled manner, gradients in the thickness of the coating deposited, at least transversely to the axis substrate travel, if it proved useful or advantageous to manufacture coatings having such characteristics.

Landscapes

  • 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)
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
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
FR9411504 1994-09-27

Publications (2)

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

Family

ID=9467305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402160A Expired - Lifetime EP0704249B1 (de) 1994-09-27 1995-09-27 Vorrichtung zur Verteilung pulverförmiger Feststoffe auf der Oberfläche eines Substrats zur Beschichtung dieses Substrates

Country Status (7)

Country Link
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)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7045015B2 (en) 1998-09-30 2006-05-16 Optomec Design Company Apparatuses and method for maskless mesoscale material deposition
US20060003095A1 (en) * 1999-07-07 2006-01-05 Optomec Design Company Greater angle and overhanging materials deposition
US6811744B2 (en) * 1999-07-07 2004-11-02 Optomec Design Company Forming structures from CAD solid models
US7938341B2 (en) 2004-12-13 2011-05-10 Optomec Design Company Miniature aerosol jet and aerosol jet array
US7674671B2 (en) 2004-12-13 2010-03-09 Optomec Design Company Aerodynamic jetting of aerosolized fluids for fabrication of passive structures
FI121336B (fi) * 2006-03-27 2010-10-15 Beneq Oy Hydrofobinen lasipinta
US7879394B1 (en) 2006-06-02 2011-02-01 Optomec, Inc. Deep deposition head
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
US10632746B2 (en) 2017-11-13 2020-04-28 Optomec, Inc. Shuttering of aerosol streams
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125153A2 (de) 1983-03-14 1984-11-14 Saint Gobain Vitrage International Verfahren und Vorrichtung zum regelmässigen Auftragen von Puder auf ein Substrat und Substrat auf diese Weise beschichtet
EP0130919A1 (de) 1983-07-04 1985-01-09 Saint Gobain Vitrage International Vorrichtung zum Verteilen von in einem Gas suspendierten pulverförmigen Stoffen
EP0392902A1 (de) 1989-04-12 1990-10-17 Saint-Gobain Vitrage International Verfahren zum Modifizieren der relativen Lagen einer Mehrzahl von ausgerichteten Elementen und Vorrichtung zur Durchführung dieses Verfahrens
EP0374023B1 (de) 1988-12-14 1994-05-11 Saint-Gobain Vitrage International Vorrichtung zum Auftragen eines in einem Gas verteilten pulverförmigen Feststoffes auf ein sich bewegendes Substrat

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
DE19502741C2 (de) * 1995-01-18 1997-04-03 Alexander Ghantus Einrichtung zur Erzeugung eines Stromes aus einem Pulver-Gas-Gemisch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125153A2 (de) 1983-03-14 1984-11-14 Saint Gobain Vitrage International Verfahren und Vorrichtung zum regelmässigen Auftragen von Puder auf ein Substrat und Substrat auf diese Weise beschichtet
EP0130919A1 (de) 1983-07-04 1985-01-09 Saint Gobain Vitrage International Vorrichtung zum Verteilen von in einem Gas suspendierten pulverförmigen Stoffen
EP0374023B1 (de) 1988-12-14 1994-05-11 Saint-Gobain Vitrage International Vorrichtung zum Auftragen eines in einem Gas verteilten pulverförmigen Feststoffes auf ein sich bewegendes Substrat
EP0392902A1 (de) 1989-04-12 1990-10-17 Saint-Gobain Vitrage International Verfahren zum Modifizieren der relativen Lagen einer Mehrzahl von ausgerichteten Elementen und Vorrichtung zur Durchführung dieses Verfahrens

Also Published As

Publication number Publication date
JPH08169728A (ja) 1996-07-02
FR2724853A1 (fr) 1996-03-29
ES2144111T3 (es) 2000-06-01
DE69514743D1 (de) 2000-03-02
DE69514743T2 (de) 2000-07-27
US5795388A (en) 1998-08-18
PT704249E (pt) 2000-07-31
FR2724853B1 (fr) 1996-12-20
EP0704249B1 (de) 2000-01-26

Similar Documents

Publication Publication Date Title
EP0704249B1 (de) Vorrichtung zur Verteilung pulverförmiger Feststoffe auf der Oberfläche eines Substrats zur Beschichtung dieses Substrates
CA2681329C (fr) Procede de revetement d'un substrat et installation de depot sous vide d'alliage metallique
EP0499524B1 (de) Asymmetrisches Gaszuführungsrohr zu Beschichtung von Glasbändern durch Pyrolyse einer Gasmischung
EP0818245A1 (de) Triboelektrische Sprühpistolen-Anlage zum Sprühen von Beschichtungsmaterialien und Verfahren zur Steuerung einer solchen Pistole
CA1139932A (fr) Dispositif pour la distribution homogene d'un produit pulverulent a travers une fente longitudinale et applications de ce dispositif
FR2971956A1 (fr) Installation et procede pour le depot d'un film de particules ordonnees sur un substrat en defilement
FR3071745A1 (fr) Dispositif de dosage d'une ou plusieurs poudre(s), imprimante 3d correspondante et procede de dosage
EP1001848B1 (de) Verfahren und vorrichtung zum kontinuierlichen beschichten eines metallbandes mit einem film aus vernetzbarem fliessfähigem polymer
EP1140376A1 (de) Verfahren und vorrichtung zum kontinuierlichen beschichten eines metallischen bandes mit flüssigkeitsfilm aus vernetzbarem polymer
EP0130919A1 (de) Vorrichtung zum Verteilen von in einem Gas suspendierten pulverförmigen Stoffen
EP0708062B1 (de) Pyrolytische Beschichtungstechnik von gasförmigen Ausgangsgemischen
FR2816726A1 (fr) Installation dans laquelle est realisee une operation necessitant un controle de l'atmosphere a l'interieur d'une enceinte
EP2212620B1 (de) Verbrennungsverfahren und -system
FR2661929A1 (fr) Dispositif de fabrication d'une couche intermediaire dans une membrane routiere sur le sol.
EP0612566B1 (de) Vorrichtung zur Verteilung von pulverförmigen Feststoffen auf ein Substrat zum Zweck seiner Beschichtung
EP1140375A1 (de) Verfahren und vorrichtung zum kontinuierlichen beschichten eines metallischen bandes mit flüssigkeitsfilm aus vernetzbarem polymer
EP0374023B1 (de) Vorrichtung zum Auftragen eines in einem Gas verteilten pulverförmigen Feststoffes auf ein sich bewegendes Substrat
FR2551365A1 (fr) Dispositif pour huiler des toles en bande continue
EP0954619A1 (de) Verfahren und einrichtung zur herstellung einer beschichtung auf ein substrat
EP0660755B1 (de) Lineare zerstäubungsvorrichtung für flüssigkeiten, insbesondere für kühlflüssigkeiten
EP1070014A1 (de) Fördervorrichtung für gegenstände und längsbauteil der blaskammer dieser blas-vorrichtung
EP0186564A1 (de) Verfahren und Vorrichtung zur Kontrolle und Regelung der Dicke von Beschichtungen auf Stützflächen
FR2558850A1 (fr) Procede et dispositif de revetement d'un produit long par pulverisation d'un materiau de revetement liquide
EP1386016B1 (de) Verfahren und vorrichtung zum schmelztauchbeschichten eines metallischen bandes
CA2014389A1 (fr) Procede pour modifier les positions relatives d'une pluralite d'organes alignes et dispositif pour la mise en oeuvre de ce procede

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES FR GB IT LU PT

17P Request for examination filed

Effective date: 19960913

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19990420

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT LU PT

REF Corresponds to:

Ref document number: 69514743

Country of ref document: DE

Date of ref document: 20000302

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000322

ITF It: translation for a ep patent filed

Owner name: RACHELI & C. S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2144111

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000419

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20010810

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010817

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20010828

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010905

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010917

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010926

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011017

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020927

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

BERE Be: lapsed

Owner name: *SAINT-GOBAIN VITRAGE

Effective date: 20020930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20030331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050927