EP1290238A1 - Materiau et procede pour realiser une couche resistante a la corrosion et a l'usure par projection thermique - Google Patents

Materiau et procede pour realiser une couche resistante a la corrosion et a l'usure par projection thermique

Info

Publication number
EP1290238A1
EP1290238A1 EP01960226A EP01960226A EP1290238A1 EP 1290238 A1 EP1290238 A1 EP 1290238A1 EP 01960226 A EP01960226 A EP 01960226A EP 01960226 A EP01960226 A EP 01960226A EP 1290238 A1 EP1290238 A1 EP 1290238A1
Authority
EP
European Patent Office
Prior art keywords
control
corrosion
producing
wear
resistant layer
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.)
Ceased
Application number
EP01960226A
Other languages
German (de)
English (en)
Inventor
Erich Lugscheider
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.)
Joma Chemical AS
Original Assignee
Joma Chemical AS
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 Joma Chemical AS filed Critical Joma Chemical AS
Publication of EP1290238A1 publication Critical patent/EP1290238A1/fr
Ceased legal-status Critical Current

Links

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
    • 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
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides

Definitions

  • the invention relates to a material and a method for producing a corrosion and wear-resistant layer on a substrate by thermal spraying.
  • Corrosion and wear protection layers are usually applied from powder mixtures of various types to surfaces to be protected in production or for maintenance.
  • thermal spray processes or vapor deposition processes such as CVD (chemical vapor deposition) or PVD (plasma vapor deposition) are mainly used.
  • CVD and PVD processes can be used to apply thin layers of corrosion and wear protection based on S oxide or hard material, particularly in mass production.
  • Electrochemical or galvanic processes are also used.
  • Thermal spraying mainly creates layers with a D layer thickness of more than 0.1 mm.
  • the corrosion and wear-resistant layers produced by thermal spraying are mostly metallic or oxidic layers in which hard materials are incorporated for improvement.
  • the layer material for producing the corrosion-resistant and wear-resistant layer has pure Fe 2 ⁇ 3.
  • a material with an addition of carbide / s or nitride / s or silicide / s or boride / s or oxide / s has proven to be cheap or a material whose additions are mixtures of metals, intermetallic compounds, carbides, nitrides, suicides , Borides and / or oxides.
  • the additions of up to 50% by weight, preferably up to 40% by weight, to the material can be, for example, Cr, CrNi or ferritic steels.
  • Carbides, nitrides, suicides, borides and oxides S have proven their worth as additives for hard materials.
  • the carbide formers such as tungsten, chromium molybdenum, niobium, tantalum, titanium, vanadium or the like are suitable.
  • the addition of the carbides should be limited to a maximum of 30% by weight, preferably 20% by weight. With borides and nitrides as additives at this level, improvements in properties are observed.
  • Oxidic additions of IG chromium oxide (Cr 2 03) in the order of 1 to 40% by weight - preferably 5 to 30% by weight - also show good results.
  • the powdery spray materials must have a grain size of 0.05 to 150 ⁇ m - preferably 0.1 to 120 ⁇ m - 15.
  • FülQ can be used to produce a cored wire from a metallic sheath and iron oxide powder.
  • thermal spray processes such as autogenous flame spraying, high-speed flame spraying (HVOF spraying), plasma spraying under air (APS), Shroud plasma spraying (SPS), vacuum spraying (LPPS), high-performance plasma spraying (HPPS), autogenous wire spraying or arc wire spraying.
  • HVOF spraying high-speed flame spraying
  • APS plasma spraying under air
  • SPS Shroud plasma spraying
  • LPPS vacuum spraying
  • HPPS high-performance plasma spraying
  • autogenous wire spraying or arc wire spraying such as autogenous wire spraying or arc wire spraying.
  • the online control and control is carried out using a combination of different methods that allow the temperature of the particle or the degree of melting, the particle size, the speed, the impact of the same on the substrate and the heating of the layer and the substrate during the Measure spraying process.
  • the measurement signals are then the Computer fed to a control system for the spraying system and the flame parameters and the performance adjusted to the values.
  • the inventor has therefore determined that it is possible to create a coating which meets the above-mentioned requirements if an iron-based oxide is used as the material, which - depending on the corrosion or wear problem to be solved - is given metals , Hard materials or intermetallic compounds.
  • the material must be produced using a specific manufacturing process; According to the invention, a powder grain with good flow properties, produced from the powdery material mixture by spray drying, is proposed, as well as a separation-safe powder grain made from the powdery material mixture by means of an agglomeration process.
  • the spraying system is equipped with an online control system for monitoring in order to be able to produce layers with a high quality and constant properties by spraying.
  • the online control and control should advantageously measure the particle speed in the spray flame, for example by means of a laser Doppler anemometer using a beam emitted by a laser device, which is broken down into two partial beams by an optical transmitter.
  • the online temperature control monitors the particle temperature in the spray flame using a high-speed pyrometer. This is done, for example, using infrared thermography. It has also proven to be advantageous to measure the amount of gas, for example a quantity of plasma gas, using the online control.
  • ITG infrared thermography
  • HSP High Speed Pyrometry
  • Fig. 3 a scheme for infrared thermography (ITG);
  • HSP Pyrometry
  • LDA laser Doppler anemometer
  • Fig. 7 a sketch for particle shape measurement in flight
  • PTM Particle Temperature Measurement
  • Fig. 9 a sketch for measuring the particle temperature and speed.
  • thermal spray processes are used to apply wear and / or corrosion layers - such as autogenous flame spraying, high-speed flame spraying (HVOF), plasma spraying under air (APS), so-called Shroud plasma spraying (SPS), plasma spraying in a vacuum (LPPS), high-power plasma spraying (HPPS), autogenous or arc wire spraying - applicable.
  • the online control and control takes place by means of a combination of different processes, which allow the temperature of the particle or the degree of melting, the particle size, the speed, the impact of the same on the substrate as well as the heating of the layer and the substrate during the spraying process to eat.
  • the measurement signals are then fed to the computer of the control part of the thermal spray system in order to be able to adapt the flame parameters and the power to the measured values.
  • FIG. 1 An online control and monitoring system shown in FIG. 1 for the flame or the spray jet 10 of a spray gun or the like indicated at 12.
  • LDA - detector
  • FIG. 3 To measure the substrate temperature T s and coating temperature T c by means of infrared thermography, according to FIG. 3 there is a substrate 30 - to be provided with a coating 32 - in the recording area of an ITG camera 18.
  • a glass fiber cable 36 extends from the latter, leading to a at 42 indicated video PC card ⁇ 500 KHz - leads.
  • a computer 46 with a monitor 48 is connected to this, to which a temperature recording device 50 is assigned.
  • the coating 32 of the substrate 30 is connected to the HSP head 24, which has an AD converter 52 to a storage element 44 and monitor 48 - Computer 46 is connected.
  • the process of laser Doppler anemometry (LDA) can be used to optimize the spray parameters with little time and effort.
  • the modulation frequency of the scattered light signal 68 is proportional to the speed component of the particle perpendicular to the interference fringe system.
  • the frequency of the LDA scattered light signals is a measure of the local density of the particles in the plasma spray jet 10. By scanning the beam, a locally resolved measurement of relevant particle parameters is possible. Results such as speed distribution, trajectories and dwell times of the particles can be obtained from this.
  • PSD particle-shape imaging
  • the image recording system consists of a CCD camera 78 with an upstream micro-channel plate (MCP) image intensifier with a minimum exposure time of 5 ns.
  • MCP micro-channel plate
  • a non-reproduced travel unit additionally enables a plane to be scanned perpendicular to the spray jet 10, so that the distribution of the particles in the spray jet 10 can be determined precisely.
  • the temperature is determined using two-wavelength pyrometery at 995 ⁇ 25 ⁇ m and 787 + 25 ⁇ m.
  • the particles are treated as gray emitters so that knowledge of the exact emissivity is not necessary for the temperature measurement.
  • the system comprises imaging a two-slit mask 80 with 25 ⁇ m ⁇ 50 ⁇ m — on a measuring head 82 — at a focal point at a distance of approximately 90 mm with a high depth of field.
  • This creates a measurement volume which, according to the graphic representation in FIG. 10, is characterized by two visible and one shadow region in between.
  • the measuring volume is approximately 170 x 250 x 2000 ⁇ m 3 .
  • the natural radiation of individual particles that fly through this measurement volume is detected by two IR detectors recorded with two different wavelengths.
  • the two partial measurement volumes result in two temperature peaks in a row.
  • the time interval between the two peaks is a measure of the speed of the particle.
  • the principle corresponds to that of the light barrier.
  • the measurable particle size essentially depends on the temperature of the particles. It has a lower limit of approximately 10 ⁇ m and an upper limit of approximately 300 ⁇ m and is determined by the absolute energy radiated by the particle, which is proportional to the square of the diameter.
  • the measurable speed range is 30m / s - 1500 m / s.
  • FIG. 9 follows on from that in FIG. 1 and illustrates the measurement of the particle temperature and the speed by means of an HSP head 24.
  • a casting mold for the production of zinc casting should be provided with a layer that prevents caking on the mold.
  • an air plasma system with an output of 50 KW was used which is equipped with an online control.
  • the layer should have a layer thickness of 0.1 to 0.5 mm, a powder with the composition was used as the spray material

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)

Abstract

L'invention concerne un procédé pour réaliser une couche résistante à la corrosion et à l'usure sur un substrat par projection à la flamme, notamment par projection au plasma atmosphérique ou sous vide, par projection au plasma haute performance ou par projection au plasma dans enveloppe. Selon l'invention, un matériau à base d'oxyde de fer, constitué de Fe>2<O>3< pur, est projeté et la formation de la couche avec ledit matériau est surveillée par un système de commande et de contrôle en ligne.
EP01960226A 2000-05-23 2001-05-18 Materiau et procede pour realiser une couche resistante a la corrosion et a l'usure par projection thermique Ceased EP1290238A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10025161A DE10025161A1 (de) 2000-05-23 2000-05-23 Werstoff und Verfahren zum Herstellen einer korrosions-und verschleißfesten Schicht durch thermisches Spitzen
DE10025161 2000-05-23
PCT/EP2001/005733 WO2001090435A1 (fr) 2000-05-23 2001-05-18 Materiau et procede pour realiser une couche resistante a la corrosion et a l'usure par projection thermique

Publications (1)

Publication Number Publication Date
EP1290238A1 true EP1290238A1 (fr) 2003-03-12

Family

ID=7643033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01960226A Ceased EP1290238A1 (fr) 2000-05-23 2001-05-18 Materiau et procede pour realiser une couche resistante a la corrosion et a l'usure par projection thermique

Country Status (7)

Country Link
US (1) US20040013813A1 (fr)
EP (1) EP1290238A1 (fr)
JP (1) JP2003534457A (fr)
AU (1) AU2001281779A1 (fr)
DE (1) DE10025161A1 (fr)
NO (1) NO20025612L (fr)
WO (1) WO2001090435A1 (fr)

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DE10041433C2 (de) * 2000-08-23 2002-06-13 Flumesys Gmbh Fluidmes Und Sys Vorrichtung zur Messung eines Masse-Stromes
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
DE10308563B3 (de) * 2003-02-27 2004-08-19 Federal-Mogul Burscheid Gmbh Zylinderlaufbuchse mit Verschleißschutzbeschichtung, ihre Herstellung und ihre Verwendung
DE10308562B3 (de) * 2003-02-27 2004-08-26 Federal-Mogul Burscheid Gmbh Zylinderlaufbuchse mit im HVOF-Verfahren auftragbarer Spritzschicht und ihre Verwendung
DE102005010754B4 (de) * 2005-03-09 2010-02-18 Daimler Ag Verfahren zur Überwachung und Steuerung von thermischen Spritzverfahren
FR2883411B1 (fr) * 2005-03-17 2007-06-15 Eads Space Transp Sas Soc Par Procede et dispositif pour generer un flux thermique charge de particules
DE102006028204A1 (de) * 2006-06-20 2007-12-27 Mtu Aero Engines Gmbh Verfahren zur Beschichtung eines Werkstücks
DE102006042549C5 (de) * 2006-09-11 2017-08-17 Federal-Mogul Burscheid Gmbh Nasse Zylinderlaufbuchse mit kavitationsresistenter Oberfläche
DE602006012382D1 (de) * 2006-09-19 2010-04-01 Abb Research Ltd Flammendetektor zur überwachung einer flamme während eines verbrennungsprozesses
DE102011120539B4 (de) * 2011-12-08 2020-10-29 Daimler Ag Verfahren zur Prüfung einer thermischen Beschichtungsanlage
JP5496992B2 (ja) * 2011-12-13 2014-05-21 中国電力株式会社 プラズマ溶射装置及びその制御方法
JP7170974B2 (ja) * 2019-11-18 2022-11-15 株式会社サタケ 溶射装置

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WO2000031313A1 (fr) * 1998-11-25 2000-06-02 Joma Chemical As Materiau et procede pour produire une couche anticorrosion et anti-usure par metallisation a chaud

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Also Published As

Publication number Publication date
DE10025161A1 (de) 2001-11-29
AU2001281779A1 (en) 2001-12-03
NO20025612D0 (no) 2002-11-22
US20040013813A1 (en) 2004-01-22
JP2003534457A (ja) 2003-11-18
WO2001090435A1 (fr) 2001-11-29
NO20025612L (no) 2003-01-22

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