EP1727623B1 - Procede de mise en peinture au moyen de vapeur d'eau - Google Patents

Procede de mise en peinture au moyen de vapeur d'eau Download PDF

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Publication number
EP1727623B1
EP1727623B1 EP05739556A EP05739556A EP1727623B1 EP 1727623 B1 EP1727623 B1 EP 1727623B1 EP 05739556 A EP05739556 A EP 05739556A EP 05739556 A EP05739556 A EP 05739556A EP 1727623 B1 EP1727623 B1 EP 1727623B1
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EP
European Patent Office
Prior art keywords
coating material
fact
accordance
nozzle arrangement
water
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.)
Active
Application number
EP05739556A
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German (de)
English (en)
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EP1727623A2 (fr
EP1727623B2 (fr
Inventor
Gerhard Brendel
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TGC TECHNOLOGIE- BETEILIGUNGSGESELLSCHAFT MBH
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TGC Technologie- Beteiligungsgesellschaft mbH
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Application filed by TGC Technologie- Beteiligungsgesellschaft mbH filed Critical TGC Technologie- Beteiligungsgesellschaft mbH
Priority to PL05739556T priority Critical patent/PL1727623T5/pl
Publication of EP1727623A2 publication Critical patent/EP1727623A2/fr
Publication of EP1727623B1 publication Critical patent/EP1727623B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • 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
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/1606—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 incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air

Definitions

  • the present invention relates to a method for coating substrates according to the preamble of claim 1 or to a corresponding installation according to the preamble of claim 6.
  • a coating material based on an organic binder, an adhering to a substrate, protective and possibly decorative film, the so-called paint is produced.
  • a coating material contains, in addition to macromolecular or macromolecule-forming film formers, pigments, fillers, additives and / or solvents or dispersants.
  • Solvents here are to be understood as meaning all liquids or liquid mixtures which are capable of dissolving the film former or the film formers, such as, for example, As alcohols or water.
  • a dispersant means the liquids that do not solve the film former, but keep in fine, mikroheterogener distribution, such.
  • Such coating materials can be referred to as coatings, can be applied by a variety of methods on the objects or substrates to be coated. Examples include the dip coating, brushing or spraying.
  • the coating material to be applied to the substrate is atomized by various methods into a multiplicity of small droplets, which are then deposited uniformly on the substrate in order to then reassemble into a film.
  • a sputtering method for example, it is known to drive the coating material through a nozzle arrangement, whereby it is torn after leaving the nozzle into many small droplets.
  • the coating material itself is pressed under appropriate pressure through the nozzle assembly (hydraulically) or the coating material is atomized by means of compressed air or compressed air (pneumatic), wherein the compressed air exits together with the coating material from the nozzle assembly.
  • the present invention relates to the application of paints to substrates by spraying or spraying, wherein the coating material is atomized by a nozzle assembly, such as a paint spray gun.
  • the water vapor in the low pressure range of 0.5 to 2 bar, or in the high pressure range of 2 to 10, in particular 4 to 8 bar are used.
  • water vapor as an auxiliary gas for the pneumatic spraying of substantially solvent-free enamel, since in these paints, which consist almost of 100% solids, the heated water vapor no cooling causes the molten paint during spraying or even can be dispensed with an additional heating or heating of the enamel for liquefaction.
  • a device for preventing water droplets in the water vapor is provided in the spray gun near the nozzle opening.
  • This can be formed by a heater.
  • the arrangement should be selected so that almost pure water vapor is available at the nozzle opening. Accordingly, the length of the heater or its power must be sized to achieve a sufficient increase in temperature. The same applies to the change in pressure.
  • the Fig. 1 shows in two schematic representations two different nozzle arrangements 1, which can be realized for example in a spray gun, to carry out the inventive method.
  • the nozzle assembly has an inner nozzle 2 and an outer nozzle 3, wherein the nozzle opening 4 of the inner nozzle 2 is disposed within the outer nozzle assembly 3 immediately in front of the nozzle opening 5 of the outer nozzle assembly 3.
  • the coating material transported in the inner nozzle arrangement 2 is mixed with the water vapor transported in the outer nozzle orifice 3 before the final leaving of the nozzle arrangement 1 through the nozzle opening 5 of the outer nozzle arrangement 3 with the water vapor (internal mixing).
  • the coating material located in the inner nozzle assembly 2 with only after leaving the nozzle assembly 1 with the water vapor, which has left the outer nozzle assembly 3 through the nozzle opening 5, mixed (external mixture).
  • the Fig. 2 shows in a purely schematic representation of a plant for coating substrates according to the present invention, wherein a spray gun 1 according to the nozzle arrangements of Fig. 1 is connected via a first supply line 6 with a first supply means 8 for providing and supplying the coating material to the spray gun 1, wherein via a pump 10, the coating material is conveyed in the supply line 6.
  • the spray gun 1 is further connected via a second supply line 7 to a second supply device 9, which comprises a steam generating device, generated by means of the steam required for the inventive method and can be conveyed to the spray gun 1.
  • a second supply device 9 which comprises a steam generating device, generated by means of the steam required for the inventive method and can be conveyed to the spray gun 1.
  • a booster or compression device such as a pump 11 may be provided in the second conduit 7 to bring the water vapor to the corresponding operating pressure range of 0.5 to 10 bar or 1 to 2 or 4 to 8 bar ,
  • the corresponding pressure increasing or compressing device 10 can also be integrated in the first supply means for the coating material or provided separately in the first supply line 6 (as shown).
  • the supply line is reduced in the vicinity of the discharge opening or nozzle opening 5 in cross section, so that even the smallest amounts of water droplets, which may have precipitated from the steam, are evaporated again and thus almost pure water vapor is available for the application of the coating material.
  • this is achieved by a conical region 13 in the feed line 7, which reduces the first cross section of the line 7 in the region 12 to a second cross section in the region 14.
  • Fig. 4 Another possibility is shown how the formation of water droplets in the water vapor can be counteracted.
  • an additional heating device 15 is provided immediately before or at the nozzle opening 5, by means of which the water vapor can be heated and overheated accordingly, so that all the water is in the form of water vapor.
  • a heater 15 are all known devices, such as electrical resistance heaters with windings around the line 7 or cartridges with exothermic reactive materials or fuels for use in a free space of the spray gun in question.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)

Claims (9)

  1. Procédé pour revêtir des substrats avec au moins un matériau de revêtement qui comprend au moins un composant organique, le matériau de revêtement étant appliqué sur le substrat par pulvérisation et application au pistolet et le matériau de revêtement étant pulvérisé par de la vapeur d'eau, caractérisé en ce que le matériau de revêtement est une laque à base d'eau (laque à l'eau) ou une laque à faire fondre substantiellement sans solvants.
  2. Procédé selon la revendication 1, caractérisé en ce que le matériau de revêtement pour la première couche (primer) est appliqué comme couche de finition, matière de charge ou comme laque transparente.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que le matériau de revêtement est pulvérisé avec de la vapeur d'eau comme gaz auxiliaire en passant par un dispositif à buse, en particulier un pistolet de laquage, et est pulvérisé sur le substrat.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la vapeur d'eau sort d'un dispositif à buse avec le matériau de revêtement (mélange intérieur) ou à proximité (mélange extérieur), en particulier de manière concentrique par rapport au matériau de revêtement, la vapeur d'eau du dispositif à buse étant amenée avec une pression de 0,5 à 10 bar, en particulier de 0,1 à 1 bar ou de 4 à 8 bar.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que des métaux, des matières plastiques ou des matériaux à base de bois sont utilisés comme substrat.
  6. Installation pour revêtir des substrats, en particulier pour exécuter le procédé selon l'une des revendications précédentes, avec au moins un dispositif à buse (1) pour pulvériser et appliquer au pistolet un matériau de revêtement sur un substrat et avec au moins un premier dispositif d'alimentation (8) pour mettre à disposition et amener le matériau de revêtement au dispositif à buse (1) et avec au moins un second dispositif d'alimentation (9) pour mettre à disposition et amener un gaz auxiliaire au dispositif à buse (1) pour pulvériser le matériau de revêtement, le second dispositif d'alimentation (9) comprenant un dispositif de production de vapeur d'eau, caractérisé en ce que le pistolet pulvérisateur présente un dispositif pour éviter des gouttelettes d'eau dans la vapeur d'eau.
  7. Installation selon la revendication 6, caractérisée en ce que le second dispositif d'alimentation (9) et/ou la conduite d'alimentation (7) au dispositif à buse (1) comprend un dispositif d'augmentation de la pression ou de compression (11) avec lequel la vapeur d'eau peut être appliquée à une pression de service de l'ordre de 0,5 à 10 bar, en particulier d'1 à 2 bar ou de 4 à 8 bar.
  8. Installation selon les revendications 6 ou 7, caractérisée en ce que la conduite d'alimentation de la vapeur d'eau (7) présente une réduction de section (13) et/ou le pistolet pulvérisateur (1) un dispositif de chauffage (15) pour transformer presque toute l'eau en phase vapeur.
  9. Installation selon l'une des revendications 6 à 8, caractérisée en ce que le pistolet pulvérisateur (1) présente un dispositif de chauffage à proximité immédiate de l'ouverture de la buse (5).
EP05739556.8A 2004-03-16 2005-03-16 Procede de mise en peinture au moyen de vapeur d'eau Active EP1727623B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05739556T PL1727623T5 (pl) 2004-03-16 2005-03-16 Sposób nakładania lakieru za pomocą pary wodnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004012889A DE102004012889A1 (de) 2004-03-16 2004-03-16 Wasserdampfunterstütztes Lackierverfahren
PCT/EP2005/002811 WO2005087387A2 (fr) 2004-03-16 2005-03-16 Procédé de mise en peinture au moyen de vapeur d'eau

Publications (3)

Publication Number Publication Date
EP1727623A2 EP1727623A2 (fr) 2006-12-06
EP1727623B1 true EP1727623B1 (fr) 2011-06-22
EP1727623B2 EP1727623B2 (fr) 2015-09-16

Family

ID=34966685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05739556.8A Active EP1727623B2 (fr) 2004-03-16 2005-03-16 Procede de mise en peinture au moyen de vapeur d'eau

Country Status (7)

Country Link
US (1) US20080014364A1 (fr)
EP (1) EP1727623B2 (fr)
AT (1) ATE513623T1 (fr)
DE (1) DE102004012889A1 (fr)
PL (1) PL1727623T5 (fr)
RU (1) RU2354561C2 (fr)
WO (1) WO2005087387A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110385207A (zh) * 2019-07-26 2019-10-29 中石化石油机械股份有限公司沙市钢管分公司 一种高粘度无溶剂内减阻涂料的喷涂装置及方法

Families Citing this family (10)

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DE102005003802A1 (de) 2004-12-10 2006-06-14 Nütro Maschinen- und Anlagenbau GmbH & Co. KG Strahlungsgerät sowie Pulverauftragsstation und Anordnung zur Beschichtung von temperatursensiblen Materialien und Verfahren hierzu
DE102005029687B4 (de) * 2005-06-21 2007-05-31 Krautzberger Gmbh Spritzvorrichtung und Spritzkopf
DE102005029688B4 (de) * 2005-06-21 2014-02-20 Krautzberger Gmbh Spritzvorrichtung und Spritzkopf
DE102006032111A1 (de) * 2006-07-11 2008-01-24 Tgc Technologie-Beteiligungsgesellschaft Mbh Strahlungsgerät, Verfahren und Anordnung zur Pulverbeschichtung von Holzwerkstoffen
WO2009102564A2 (fr) * 2008-02-11 2009-08-20 Boston Scientific Scimed, Inc. Appareil de revêtement d’un substrat comportant un émetteur de vapeur de solvant
US9186881B2 (en) * 2009-03-09 2015-11-17 Illinois Tool Works Inc. Thermally isolated liquid supply for web moistening
DE102010015497A1 (de) * 2010-04-16 2011-10-20 Dieter Wurz Außen mischende Mehrstoffdüse für minimalen inneren Wärmeübergang
CN103343925B (zh) * 2013-07-19 2015-08-26 深圳市华星光电技术有限公司 显示装置及其制造方法
DE102014100328A1 (de) * 2014-01-13 2015-07-16 Gerhard Brendel Lackiervorrichtung
EP3639991A1 (fr) * 2018-10-19 2020-04-22 Edgewell Personal Care Brands, LLC Lame de rasoir et son procédé de fabrication

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GB455408A (en) 1934-12-14 1936-10-20 Georg Colmant Process for the conversion of bituminous substances or of bitumen and filler mixtures, in particular those having a high melting point, into protective coatings on constructions and the like by spraying
DE871439C (de) * 1942-06-13 1953-03-23 Rosenblads Patenter Ab Verfahren zum chemischen Reinigen von waermeuebertragenden Waenden in Waermeaustauschern u. dgl.
GB660233A (en) 1948-06-11 1951-10-31 Du Pont Steam spraying
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FR1153725A (fr) 1956-06-01 1958-03-20 Du Pont Procédé perfectionné de pulvérisation de compositions d'enduisage à l'aide de vapeur d'eau
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110385207A (zh) * 2019-07-26 2019-10-29 中石化石油机械股份有限公司沙市钢管分公司 一种高粘度无溶剂内减阻涂料的喷涂装置及方法

Also Published As

Publication number Publication date
WO2005087387A2 (fr) 2005-09-22
WO2005087387A3 (fr) 2005-10-27
PL1727623T3 (pl) 2012-01-31
DE102004012889A1 (de) 2005-10-06
US20080014364A1 (en) 2008-01-17
PL1727623T5 (pl) 2016-01-29
RU2006136017A (ru) 2008-04-27
EP1727623A2 (fr) 2006-12-06
RU2354561C2 (ru) 2009-05-10
EP1727623B2 (fr) 2015-09-16
ATE513623T1 (de) 2011-07-15

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