EP2029788A1 - Verfahren zur beschichtung eines werkstücks - Google Patents
Verfahren zur beschichtung eines werkstücksInfo
- Publication number
- EP2029788A1 EP2029788A1 EP07764370A EP07764370A EP2029788A1 EP 2029788 A1 EP2029788 A1 EP 2029788A1 EP 07764370 A EP07764370 A EP 07764370A EP 07764370 A EP07764370 A EP 07764370A EP 2029788 A1 EP2029788 A1 EP 2029788A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- infrared
- workpiece
- spray jet
- detected
- thermal spraying
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000011248 coating agent Substances 0.000 title claims abstract description 9
- 238000000576 coating method Methods 0.000 title claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000007751 thermal spraying Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004886 process control Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
Definitions
- the invention relates to a method for coating a workpiece according to the preamble of claim 1.
- WO 2004/029319 A2 discloses a method for coating a workpiece, in which a powdery material is applied to a workpiece by thermal spraying, the injection process being monitored and evaluated in order to establish an online process control.
- the spray jet is optically monitored with the aid of a CCD camera, wherein the CCD camera determines a luminance distribution of the spray jet, namely a plasma jet and particle beam.
- This procedure for monitoring and evaluating the injection process is also referred to as Particle Flux Imaging (PFI) method.
- PFI Particle Flux Imaging
- the monitoring and evaluation of the injection process during thermal spraying with the aid of the particle flux imaging method requires that the pulverulent material used for thermal spraying has a relatively high intrinsic luminosity in the visible wavelength range.
- particle flux imaging can not detect all of the thermal spraying materials in the spray jet.
- the particle flux imaging method is then unsuitable when a multicomponent powder, such.
- the known from the prior art particle flux imaging method thus allows only a limited online process control of thermal spraying.
- the present invention is based on the problem to provide a novel method for coating a workpiece.
- infrared emissions of the spray jet are detected by means of at least one infrared camera, wherein properties of the same are determined by an infrared analysis of the hifrotic emissions of the spray steel detected by the or each infrared camera.
- the method according to the invention it is proposed to monitor the thermal spraying by means of an infrared analysis of the spray jet. This makes it possible to identify the different components thereof in a spray jet. In particular, it is possible to determine inhomogeneities and evaporation rates of the spray jet. Furthermore, it is possible to selectively detect process-relevant molecules and / or atoms of the spray jet.
- infrared emissions of different molecules and / or atoms of the spray jet are detected with the aid of the or each infrared camera, with different infrared filters on the or each infrared camera for the different molecules and / or atoms of the spray strip be used.
- the present invention relates to a method for coating a workpiece by thermal spraying, wherein the thermal spraying a powdered material is applied to the surface of the workpiece to be coated.
- the thermal spraying as such is known to the person skilled in the art and therefore needs no further explanation.
- the injection process of thermal spraying is monitored and evaluated for the purpose of establishing an online process control, namely in that infrared emissions of the spray jet are detected by means of at least one infrared camera, wherein properties of the same are determined by an infrared analysis of the infrared emissions of the spray jet detected by the or each infrared camera.
- the method according to the invention is preferably used when a multicomponent powder, in particular a metal-polymer powder or a metal-ceramic powder, is applied to the workpiece as the material.
- a multicomponent powder in particular a metal-polymer powder or a metal-ceramic powder
- infrared emissions of different molecules and / or atoms of the spray jet can be detected.
- infrared emissions of different molecules and / or atoms in the gas phase of the spray jet are detected.
- infrared filters are used which are adapted to the infrared emissions of the molecules and / or atoms to be detected. So it is z. B. possible to monitor the spray jet with multiple infrared cameras, each infrared camera is assigned a special infrared filter, so as to detect the infrared emissions of different molecules and / or atoms of the spray jet in the range of each infrared camera.
- metal-ceramic powder when applied by thermal spraying on the workpiece, in a gas phase of the spray jet in particular aluminum oxide and zirconium oxide and dimeric metal molecules such as Ni2 and Ti2 can be detected.
- metal-polymer powders in particular C-H molecules or CH2 molecules can be detected.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006028204A DE102006028204A1 (de) | 2006-06-20 | 2006-06-20 | Verfahren zur Beschichtung eines Werkstücks |
| PCT/DE2007/001053 WO2007147388A1 (de) | 2006-06-20 | 2007-06-14 | Verfahren zur beschichtung eines werkstücks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2029788A1 true EP2029788A1 (de) | 2009-03-04 |
Family
ID=38476900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07764370A Withdrawn EP2029788A1 (de) | 2006-06-20 | 2007-06-14 | Verfahren zur beschichtung eines werkstücks |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090152099A1 (de) |
| EP (1) | EP2029788A1 (de) |
| CA (1) | CA2653213A1 (de) |
| DE (1) | DE102006028204A1 (de) |
| WO (1) | WO2007147388A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013223688A1 (de) * | 2013-11-20 | 2015-05-21 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum automatisierten Aufbringen einer Spritzbeschichtung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4656331A (en) * | 1982-04-26 | 1987-04-07 | General Electric Company | Infrared sensor for the control of plasma-jet spray coating and electric are heating processes |
| US5047812A (en) * | 1989-02-27 | 1991-09-10 | Motorola, Inc. | Insulated gate field effect device |
| US5047612A (en) * | 1990-02-05 | 1991-09-10 | General Electric Company | Apparatus and method for controlling powder deposition in a plasma spray process |
| US5180921A (en) * | 1991-11-18 | 1993-01-19 | National Research Council Of Canada | Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles |
| EP0837305A1 (de) * | 1996-10-21 | 1998-04-22 | Sulzer Metco AG | Einrichtung sowie Verfahren zur Überwachung des Beschichtungsprozesses einer thermischen Beschichtungsvorrichtung |
| EP0939142A1 (de) * | 1998-02-27 | 1999-09-01 | Ticona GmbH | Thermisches Sprühpulver enthaltend ein oxidiertes Polyarylensulfid |
| DE19837400C1 (de) * | 1998-08-18 | 1999-11-18 | Siemens Ag | Verfahren und Vorrichtung zur Beschichtung von Hochtemperaturbauteilen mittels Plasmaspritzens |
| FI111192B (fi) * | 2000-03-31 | 2003-06-13 | Oseir Oy | Menetelmä kuvantavaan mittaukseen, kuvantava mittalaite ja mitatun informaation käyttö prosessin valvonnassa |
| DE10025161A1 (de) * | 2000-05-23 | 2001-11-29 | Joma Chemicals As Limingen | Werstoff und Verfahren zum Herstellen einer korrosions-und verschleißfesten Schicht durch thermisches Spitzen |
| US6491967B1 (en) * | 2000-10-24 | 2002-12-10 | General Electric Company | Plasma spray high throughput screening method and system |
| DE10203884A1 (de) * | 2002-01-31 | 2003-08-14 | Flumesys Gmbh Fluidmes Und Sys | Vorrichtung und Verfahren zum thermischen Spritzen |
| DE10244037A1 (de) * | 2002-09-21 | 2004-04-08 | Mtu Aero Engines Gmbh | Verfahren zur Beschichtung eines Werkstücks |
| DE102005010754B4 (de) * | 2005-03-09 | 2010-02-18 | Daimler Ag | Verfahren zur Überwachung und Steuerung von thermischen Spritzverfahren |
-
2006
- 2006-06-20 DE DE102006028204A patent/DE102006028204A1/de not_active Withdrawn
-
2007
- 2007-06-14 WO PCT/DE2007/001053 patent/WO2007147388A1/de not_active Ceased
- 2007-06-14 CA CA002653213A patent/CA2653213A1/en not_active Abandoned
- 2007-06-14 EP EP07764370A patent/EP2029788A1/de not_active Withdrawn
-
2008
- 2008-12-15 US US12/335,135 patent/US20090152099A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007147388A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090152099A1 (en) | 2009-06-18 |
| CA2653213A1 (en) | 2007-12-27 |
| DE102006028204A1 (de) | 2007-12-27 |
| WO2007147388A1 (de) | 2007-12-27 |
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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 |
|
| 17P | Request for examination filed |
Effective date: 20081216 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
| 17Q | First examination report despatched |
Effective date: 20110511 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20110922 |