EP1727623A2 - Procede de mise en peinture au moyen de vapeur d'eau - Google Patents

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

Info

Publication number
EP1727623A2
EP1727623A2 EP05739556A EP05739556A EP1727623A2 EP 1727623 A2 EP1727623 A2 EP 1727623A2 EP 05739556 A EP05739556 A EP 05739556A EP 05739556 A EP05739556 A EP 05739556A EP 1727623 A2 EP1727623 A2 EP 1727623A2
Authority
EP
European Patent Office
Prior art keywords
coating material
water
nozzle
coating
water vapor
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
EP05739556A
Other languages
German (de)
English (en)
Other versions
EP1727623B2 (fr
EP1727623B1 (fr
Inventor
Gerhard Brendel
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.)
TGC TECHNOLOGIE- BETEILIGUNGSGESELLSCHAFT MBH
Original Assignee
Nuetro Maschinen- und Anlagenbau & Co KG GmbH
Nutro Maschinen und Anlagenbau GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34966685&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1727623(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nuetro Maschinen- und Anlagenbau & Co KG GmbH, Nutro Maschinen und Anlagenbau GmbH and Co KG filed Critical Nuetro Maschinen- und Anlagenbau & Co KG GmbH
Priority to PL05739556T priority Critical patent/PL1727623T5/pl
Publication of EP1727623A2 publication Critical patent/EP1727623A2/fr
Application granted granted Critical
Publication of EP1727623B1 publication Critical patent/EP1727623B1/fr
Publication of EP1727623B2 publication Critical patent/EP1727623B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 7.
  • 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.
  • As a dispersant means the liquids that do not solve the film former, but keep in fine, mikroheterogener Ner exclude, such as. As hydrocarbons or water.
  • 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 problem in particular in the application of water-based paints, in which so water is used as a solvent or dispersion medium is that by air inclusions with pneumatic atomization no homogeneous coating on the substrate surface can be achieved.
  • substrates with high surface tension such.
  • islands occur without coating material in the paint film on the substrate. This is particularly problematic if the coating consists of several layers and the islanding already occurs in the base or adhesive layer, as this then continues with the further coating structure.
  • Primers with very high water content and low solids content islanding is observed.
  • 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.
  • 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 pressure booster and / or 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 pressure increasing device with respect to the change of the pressure.
  • FIG. 2 is a schematic representation of a plant for coating substrates according to the present invention
  • 3 is a schematic representation of the steam supply line in the spray gun
  • FIG. 4 shows a schematic illustration of a second embodiment of the steam supply line in the spray gun.
  • FIG. 1 shows, in two schematic representations, two different nozzle arrangements 1, which can be realized, for example, in a spray gun in order to carry out the method according to the invention.
  • 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 arrangement 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).
  • FIG. 2 shows in a purely schematic representation a system for coating substrates according to the present invention, wherein a spray gun 1 corresponding to the nozzle arrangements of Fig. 1 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 in the supply line 6 is required.
  • 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 pressure increasing or compressing device such as a pump 11 may be provided in the second conduit 7 to the water vapor to the corresponding operating pressure range of 0.5 to 10 bar or 1 to 2 or 4 to 8 bar to bring.
  • 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).
  • FIGS. 1 and the steam supply line 7 are shown schematically in FIGS.
  • the supply line is reduced in the vicinity of the discharge opening or nozzle opening 5 in cross section, so that the pressure rises immediately in front of the nozzle opening 5, 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 supply 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 shows a further possibility of 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 present in water vapor form.
  • 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)
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 true EP1727623A2 (fr) 2006-12-06
EP1727623B1 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)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102005029688B4 (de) * 2005-06-21 2014-02-20 Krautzberger Gmbh Spritzvorrichtung und Spritzkopf
DE102005029687B4 (de) * 2005-06-21 2007-05-31 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
CN110385207B (zh) * 2019-07-26 2021-02-19 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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB660233A (en) 1948-06-11 1951-10-31 Du Pont Steam spraying
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
US2976392A (en) 1953-09-04 1961-03-21 Wabnitz Richard Fluid distributing apparatus
EP0008799A1 (fr) 1978-09-08 1980-03-19 The B.F. GOODRICH Company Procédé de revêtement des réacteurs en utilisant de la vapeur d'eau
US4816542A (en) 1987-05-16 1989-03-28 Elastogran Polyurethane Gmbh Process for the preparation of coatings from polyurethane single component systems and steam
WO2000018514A1 (fr) 1998-09-30 2000-04-06 Voith Sulzer Papiertechnik Patent Gmbh Procede et dispositif pour appliquer une substance liquide ou pateuse sur un substrat en mouvement
DE60120448T2 (de) 2000-10-16 2007-01-04 Akzo Nobel Coatings International B.V. Schmelzlack

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DE871439C (de) * 1942-06-13 1953-03-23 Rosenblads Patenter Ab Verfahren zum chemischen Reinigen von waermeuebertragenden Waenden in Waermeaustauschern u. dgl.
US3764069A (en) * 1971-07-30 1973-10-09 Nordson Corp Method and apparatus for spraying
GB1483144A (en) * 1975-04-07 1977-08-17 British Petroleum Co Protective films
US4132357A (en) * 1976-06-23 1979-01-02 Inmont Corporation Apparatus and method for spray application of solvent-thinned coating compositions
US4426488A (en) * 1982-05-20 1984-01-17 Wyman Ransome J Elastomeric composition
US5916625A (en) * 1993-04-08 1999-06-29 Ppg Industries, Inc. Method and apparatus for spraying waterborne coatings under varying conditions
WO2004104063A2 (fr) * 2003-05-15 2004-12-02 Gupta Laxmi C Compositions de polyurethannes durcissables dans l'eau presentant des caracteristiques de viscosite ameliorees

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB660233A (en) 1948-06-11 1951-10-31 Du Pont Steam spraying
US2976392A (en) 1953-09-04 1961-03-21 Wabnitz Richard Fluid distributing apparatus
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
EP0008799A1 (fr) 1978-09-08 1980-03-19 The B.F. GOODRICH Company Procédé de revêtement des réacteurs en utilisant de la vapeur d'eau
US4816542A (en) 1987-05-16 1989-03-28 Elastogran Polyurethane Gmbh Process for the preparation of coatings from polyurethane single component systems and steam
WO2000018514A1 (fr) 1998-09-30 2000-04-06 Voith Sulzer Papiertechnik Patent Gmbh Procede et dispositif pour appliquer une substance liquide ou pateuse sur un substrat en mouvement
DE60120448T2 (de) 2000-10-16 2007-01-04 Akzo Nobel Coatings International B.V. Schmelzlack

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Bitumen", WIKIPEDIA, pages 1 - 6, XP003028141
"Ullmanns Encyclopaedie der technischen Chemie", vol. 15, 1978, XP003028142

Also Published As

Publication number Publication date
EP1727623B2 (fr) 2015-09-16
PL1727623T5 (pl) 2016-01-29
EP1727623B1 (fr) 2011-06-22
DE102004012889A1 (de) 2005-10-06
WO2005087387A3 (fr) 2005-10-27
RU2006136017A (ru) 2008-04-27
WO2005087387A2 (fr) 2005-09-22
RU2354561C2 (ru) 2009-05-10
US20080014364A1 (en) 2008-01-17
PL1727623T3 (pl) 2012-01-31
ATE513623T1 (de) 2011-07-15

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