WO2008040498A1 - Procédé et dispositif d'enduction de bandes de différentes pièces d'usinage dans un dispositif d'enduction sous vide - Google Patents

Procédé et dispositif d'enduction de bandes de différentes pièces d'usinage dans un dispositif d'enduction sous vide Download PDF

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Publication number
WO2008040498A1
WO2008040498A1 PCT/EP2007/008467 EP2007008467W WO2008040498A1 WO 2008040498 A1 WO2008040498 A1 WO 2008040498A1 EP 2007008467 W EP2007008467 W EP 2007008467W WO 2008040498 A1 WO2008040498 A1 WO 2008040498A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
covering means
covering
width
workpieces
Prior art date
Application number
PCT/EP2007/008467
Other languages
German (de)
English (en)
Inventor
Stefan Schiele
Original Assignee
Josef Schiele Ohg
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 Josef Schiele Ohg filed Critical Josef Schiele Ohg
Publication of WO2008040498A1 publication Critical patent/WO2008040498A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B05B13/0214—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe the liquid or other fluent material being applied to the whole periphery of the cross section of the elongated body
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/76—Applying the liquid by spraying
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/77—Controlling or regulating of the coating process

Definitions

  • the invention relates to a method and a device for the uniform application of a passivation agent on a variable in width and height workpiece, wherein the workpiece is transported at high speed and the passivation agent is applied in an application chamber on the workpiece.
  • a disadvantage of this method is that when passing through the workpiece through a trough much passivation required and not always a uniform application of the passivation on the workpiece is achieved.
  • a so-called overspray that is a fine spray that misses the workpiece and results in the loss of coating material, is produced.
  • An overspray thus represents a loss of material.
  • a method for the uniform application of a passivating agent to a preferably variable in width and height, workpiece proposed, in which a transport of the workpiece is carried out at a high speed and the passivating agent in an application chamber the workpiece is applied.
  • a negative pressure is present in the application chamber.
  • the layer thickness of the coating by adjusting the process parameters - such as the strength of the negative pressure or the viscosity of the coating agent - is always the same.
  • At least one other process parameter is also changed.
  • the negative pressure is also adjusted so that the layer thickness of the coating material remains constant.
  • the coating process is preferably a passivation process for metals, in particular metal sheets.
  • the passivation agent is particularly preferably a chromium-free water-based passivating agent.
  • the workpieces being coated are varying workpieces.
  • Such workpieces can for example consist of sheet metal pieces, which have different widths and / or heights and are joined together by welding.
  • the resulting workpiece is variable both in width and in height, since the sheet metal pieces have different thicknesses or beads are formed by the welds.
  • the welding together of the sheet metal pieces preferably produces an endless sheet with the above-mentioned variable properties.
  • the application chamber in which the passivating agent is applied to the workpiece, a negative pressure.
  • the excessive escape of the negative pressure from the application chamber is prevented by a covering means which is arranged at the inlet and / or outlet of the coating chamber.
  • a covering means according to the invention are all devices which are suitable for covering the opening of the application chamber.
  • matrices such as inlet matrices and outlet matrices, should be considered as covering agents.
  • the covering means is substantially adapted to the outer contour of the workpiece.
  • the width and / or the height of the workpiece is determined by a sensor means.
  • a sensor means is for example a light scanner and / or a feeler roller. Also conceivable is the combination of different sensor means to determine the height and / or the width of the workpiece as quickly as possible.
  • the sensor means is preferably located in front of the application chamber with respect to the transport direction of the workpiece.
  • the signals of the sensor means are used to control the cover means.
  • the signals can be sent to a control unit, which in turn responds to a drive for the displacement of the covering means.
  • control unit which responds to a drive for the displacement of the covering means.
  • the covering means depending on the signal of the sensor, moved vertically.
  • the covering means can also adapt to the width of the varying workpieces by the vertical method.
  • the covering means is also moved horizontally and / or vertically.
  • the covering fits finer to the outer contour of the Workpiece. Again, the distance that moves the cover horizontally dependent on the detected signal of the sensor means.
  • the workpiece passes through the covering means by means of a means of transport.
  • the workpieces are transported by the transport means to the application chamber, through the application chamber and away from the application chamber. Since the workpiece is preferably endless, a drive and sufficient guidance of the workpiece is sufficient as a means of transport.
  • the transport means transports the workpieces at a high speed, so that the workpieces pass through the cover means at a high speed.
  • Another object of the present invention is a device for carrying out the method according to the invention.
  • the device is suitable according to the invention for passivation of a workpiece in an application chamber and has at least one sensor means.
  • the function of the sensor means is described above.
  • the covering means adapts to the outer contour of the workpiece, depending on the signals of the sensor means.
  • the device has a covering means, whereby excessive escape of the negative pressure in the application chamber is prevented.
  • the covering means may be formed as inlet matrices and / or outlet matrices.
  • the cover means are preferably arranged displaceably, wherein their position is particularly preferably determined by the signal of the sensor means.
  • two covering means are arranged on the right and left of the workpiece.
  • these covering means have a staircase-like construction, wherein the stairs rise from the inside to the outside. This results in an opening which can be discretely enlarged or reduced.
  • the steps have a height of 5 to 15 mm, preferably from 11 to 12 mm, and a width of 80 to 120 mm, preferably from 95 to 105 mm. Since only discrete width values through the steps of the covering means are possible for the width of the workpiece, can each by a subsequent horizontal Method of covering and intermediate values with respect to the width can be adjusted. It is thus a fine adjustment of the width and thus a substantially accurate adaptation of the covering means to the outer contour of the workpiece possible. By simply vertical and subsequent horizontal movement of the covering means, only a small part of the opening of the application chamber is thereby released, so that too much escape of the negative pressure from the application chamber is avoided by the covering means.
  • a dryer unit is additionally integrated in the device, whereby the workpieces are dried after being coated by the passivation agent.
  • a dryer unit can be realized, for example, by a luminous means which emits light in the near infrared range.
  • the device is displaceable perpendicular to the direction of the transport.
  • the device is removable by means of rollers or already pivotally mounted in the rest of the processing chain.
  • Figure 1 schematically illustrates the device according to the invention with a
  • FIG. 2 shows schematically an embodiment of the covering means according to the invention, wherein two cover means are shown with a stepped structure.
  • FIG. 3 schematically illustrates the embodiment of the covering means described in FIG. 2 and a workpiece, wherein two covering means have been adapted to the width of the workpiece by a vertical method.
  • FIG. 4 shows diagrammatically how the two covering means from FIG. 3 have been adapted more precisely to the width of the workpiece by a horizontal method.
  • FIG. 1 schematically illustrates the device 2 according to the invention.
  • a sensor component 2 which in the exemplary embodiment is attached to the device 2 by an arm 1 and measures its height and / or width before passing through the workpieces 8.
  • the measurement results are used to control two covering means 3, wherein the covering means 3 move and adapt to the contour of the workpiece 8.
  • the workpieces 8 are conveyed via a means of transport at a high speed to the application chamber 10 and consequently also pass through the masking means 3 quickly.
  • the masking means 3 cause the overpressure to escape too much prevents the application chamber 10, but allow the cover 3 a gap to the workpiece 8, so that the strong pressure differences (inside and outside the fürshunthunto) strong flow velocities arise through the opening 9 and 9 eddies and turbulence are formed at the edges of the openings.
  • nozzles are provided through which the liquid passivation agent is introduced into the application chamber.
  • Liquid droplets of the passivating agent are integrated by the turbulence and vortex into a homogeneous veil and an impact of the vortex and turbulence streams on the workpiece 8 leads to a uniform precipitate Passivi mecanicsmittels on the workpiece 8 surpluses of passivation on the workpiece 8 are removed by the highly turbulent eddy currents again.
  • the excess passivating agent is collected by a system and returned to the application circuit.
  • the device 2 described it is advantageously possible to ensure a constant coating thickness and to minimize the loss of passivation agent (for example by overspray) during the coating process.
  • the device 2 may have behind the application chamber 10 a dryer unit (not shown) which dries the coated workpieces by short-wave infrared radiation.
  • FIG. 2 shows two covering means 3 according to the invention in a preferred embodiment.
  • Each of the cover means 3 has a stepped structure with a devisnushe 7 and a step height 6. Due to the step height 6, each covering means 3 can be adapted to the height of a workpiece 8 (not shown).
  • the step width 7 is for adapting the cover 3 to the width of the workpieces 8 of importance.
  • both cover means 3 can move in the direction 5, so that in each case the step of the cover 3 is selected for adaptation to the width of the workpiece 8, which fits best in width to the workpiece 8.
  • FIG. 3 schematically shows two covering means 3 (embodiment as in FIG. 2) and a workpiece 8. It is understood that for covering the opening 9 of the application chamber 10 further covering means can be used which cover the opening 9 from above.
  • the step which best corresponds to the width of the workpiece 8 has been selected for fitting to the workpiece 8.
  • the method and the associated selection of the step arises between the cover 3, a gap through which the workpiece 8 passes into the application chamber 10.
  • FIG. 4 schematically shows how each of the covering means 3 has been adapted to the contour of the workpiece 8 more finely by means of processes in the direction 4. In this case, the discrete values, which arise due to the width and the number of stages of the covering means 3, are compensated. Due to the short distances that the cover 3 must move to adapt to different workpieces 8, a transport of the workpieces 8 at high speed to the application chamber 10 is guaranteed.

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé pour appliquer de manière homogène un agent de passivation sur une pièce d'usinage (8) de largeur et de hauteur variables, procédé selon lequel la pièce (8) est transportée à grande vitesse et l'agent de passivation est appliqué sur la pièce (8) dans une chambre d'application (10), le vide régnant dans la chambre d'application (10) lors de l'application de l'agent de passivation.
PCT/EP2007/008467 2006-09-29 2007-09-28 Procédé et dispositif d'enduction de bandes de différentes pièces d'usinage dans un dispositif d'enduction sous vide WO2008040498A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006046797.3 2006-09-29
DE200610046797 DE102006046797A1 (de) 2006-09-29 2006-09-29 Verfahren und Vorrichtung zur Bandbeschichtung von variablen Werkstücken in einer Vakuumbeschichtungsvorrichtung

Publications (1)

Publication Number Publication Date
WO2008040498A1 true WO2008040498A1 (fr) 2008-04-10

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PCT/EP2007/008467 WO2008040498A1 (fr) 2006-09-29 2007-09-28 Procédé et dispositif d'enduction de bandes de différentes pièces d'usinage dans un dispositif d'enduction sous vide

Country Status (2)

Country Link
DE (1) DE102006046797A1 (fr)
WO (1) WO2008040498A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011112407A1 (fr) * 2010-03-10 2011-09-15 Eastman Chemical Company Procédés et appareil de revêtement de substrats
US8865261B2 (en) 2012-12-06 2014-10-21 Eastman Chemical Company Extrusion coating of elongated substrates
US9289795B2 (en) 2008-07-01 2016-03-22 Precision Coating Innovations, Llc Pressurization coating systems, methods, and apparatuses
US9604251B2 (en) 2008-07-16 2017-03-28 Eastman Chemical Company Thermoplastic formulations for enhanced paintability, toughness and melt processability
US9616457B2 (en) 2012-04-30 2017-04-11 Innovative Coatings, Inc. Pressurization coating systems, methods, and apparatuses
US9744707B2 (en) 2013-10-18 2017-08-29 Eastman Chemical Company Extrusion-coated structural members having extruded profile members
US9920526B2 (en) 2013-10-18 2018-03-20 Eastman Chemical Company Coated structural members having improved resistance to cracking

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013224599A1 (de) 2013-11-29 2015-06-03 Homag Holzbearbeitungssysteme Gmbh Verfahren zum Beschichten von Werkstücken sowie Vorrichtung

Citations (5)

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DE9214293U1 (de) * 1992-10-22 1993-03-11 Fa. Josef Schiele, 5476 Niederzissen Durchlauf-Vakuumbeschichtungskammer
GB2264658A (en) * 1992-03-06 1993-09-08 Josef Schiele An edge coating head
DE20100504U1 (de) * 2001-01-12 2001-05-10 Josef Schiele oHG, 56651 Niederzissen Beschichtungsvorrichtung für ein langgestrecktes Werkstück
DE102004041142A1 (de) * 2004-08-24 2006-03-02 Basf Ag Verfahren zum Passivieren von metallischen Oberflächen unter Verwendung von Itaconsäure Homo- oder Copolymeren
DE102004057299A1 (de) * 2004-11-26 2006-06-01 Josef Schiele Ohg Vorrichtung zum Auftragen eines Beschichtungsmediums auf langgestreckte Werkstücke mit einer Führungsvorrichtung

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Publication number Priority date Publication date Assignee Title
GB2264658A (en) * 1992-03-06 1993-09-08 Josef Schiele An edge coating head
DE9214293U1 (de) * 1992-10-22 1993-03-11 Fa. Josef Schiele, 5476 Niederzissen Durchlauf-Vakuumbeschichtungskammer
DE20100504U1 (de) * 2001-01-12 2001-05-10 Josef Schiele oHG, 56651 Niederzissen Beschichtungsvorrichtung für ein langgestrecktes Werkstück
DE102004041142A1 (de) * 2004-08-24 2006-03-02 Basf Ag Verfahren zum Passivieren von metallischen Oberflächen unter Verwendung von Itaconsäure Homo- oder Copolymeren
DE102004057299A1 (de) * 2004-11-26 2006-06-01 Josef Schiele Ohg Vorrichtung zum Auftragen eines Beschichtungsmediums auf langgestreckte Werkstücke mit einer Führungsvorrichtung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9289795B2 (en) 2008-07-01 2016-03-22 Precision Coating Innovations, Llc Pressurization coating systems, methods, and apparatuses
US10576491B2 (en) 2008-07-01 2020-03-03 Precision Coating Innovations, Llc Pressurization coating systems, methods, and apparatuses
US9604251B2 (en) 2008-07-16 2017-03-28 Eastman Chemical Company Thermoplastic formulations for enhanced paintability, toughness and melt processability
WO2011112407A1 (fr) * 2010-03-10 2011-09-15 Eastman Chemical Company Procédés et appareil de revêtement de substrats
US8734909B2 (en) 2010-03-10 2014-05-27 Eastman Chemical Company Methods and apparatus for coating substrates
US9616457B2 (en) 2012-04-30 2017-04-11 Innovative Coatings, Inc. Pressurization coating systems, methods, and apparatuses
US8865261B2 (en) 2012-12-06 2014-10-21 Eastman Chemical Company Extrusion coating of elongated substrates
US9919503B2 (en) 2012-12-06 2018-03-20 Eastman Chemical Company Extrusion coating of elongated substrates
US9744707B2 (en) 2013-10-18 2017-08-29 Eastman Chemical Company Extrusion-coated structural members having extruded profile members
US9920526B2 (en) 2013-10-18 2018-03-20 Eastman Chemical Company Coated structural members having improved resistance to cracking

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