EP2260119B1 - Cold gas spraying system - Google Patents

Cold gas spraying system Download PDF

Info

Publication number
EP2260119B1
EP2260119B1 EP09729463A EP09729463A EP2260119B1 EP 2260119 B1 EP2260119 B1 EP 2260119B1 EP 09729463 A EP09729463 A EP 09729463A EP 09729463 A EP09729463 A EP 09729463A EP 2260119 B1 EP2260119 B1 EP 2260119B1
Authority
EP
European Patent Office
Prior art keywords
section
spraying system
cold gas
gas spraying
stagnation chamber
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
EP09729463A
Other languages
German (de)
French (fr)
Other versions
EP2260119A2 (en
Inventor
Oliver Stier
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2260119A2 publication Critical patent/EP2260119A2/en
Application granted granted Critical
Publication of EP2260119B1 publication Critical patent/EP2260119B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • B05B7/14—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 designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
    • 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
    • B05B7/1613—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 comprising means for heating the atomising fluid before mixing with the material to be sprayed
    • B05B7/162—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 comprising means for heating the atomising fluid before mixing with the material to be sprayed and heat being transferred from the atomising fluid to the material to be sprayed
    • B05B7/1626—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 comprising means for heating the atomising fluid before mixing with the material to be sprayed and heat being transferred from the atomising fluid to the material to be sprayed at the moment of mixing
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles

Definitions

  • the invention relates to a cold gas spraying system having the features according to the preamble of claim 1.
  • Such a cold gas spraying system is sold, for example, by CGT Cold Gas Technology GmbH under the product name Kinetiks® 4000 Cold Spray System.
  • the previously known cold gas spraying system has a gas heater for heating a gas.
  • a stagnation chamber is connected to a Laval nozzle.
  • Laval nozzles are known to have a converging section, a nozzle neck adjoining the converging section and a widening section adjoining the nozzle neck.
  • the Laval nozzle emits a gas stream with particles in it at supersonic speed.
  • Cold spray systems of the type described can be used, for example, to produce a coating on a surface with the accelerated particles.
  • Kaltgasspiritzanlagen are in DE 10207519 and EP 1629899 disclosed.
  • the invention has for its object to provide a cold gas spraying system with which an even better layer quality when producing a coating can be achieved than before.
  • the invention provides that at least one - as seen in the gas flow direction - located behind the gas heater section of the cold gas spraying system in which he inside wall with a ceramic insulation material, the thermal conductivity (thermal conductivity) below 20 watts per Kelvin and meter (20 W. / Km), is covered or consists of such a material.
  • the thermal conductivity of an insulating material is usually given for a temperature range between 30 and 100 ° C, as listed in W / (K * m).
  • a significant advantage of the cold gas spray system according to the invention is the fact that can be achieved with this higher flow velocities of the gas stream and thus higher particle velocities than in prior art cold gas spraying. This is concretely attributable to the fact that, due to the thermal insulation provided according to the invention, of at least one section located behind the gas heating device in the gas flow direction, it is possible to achieve greater stagnation temperatures of the gas within the cold gas spraying installation than before. It has been recognized by the inventor that the achievable flow rates against atmospheric pressure, both those of the gas stream and those of the particles therein, depend primarily on the stagnation temperature of the gas and less on the stagnation pressure of the gas.
  • the invention begins by providing according to the invention to allow even higher stagnation temperatures than before; This is achieved by one or more located behind the gas heater sections are specifically thermally insulated or thermally protected to even higher temperatures in these sections without damaging plant parts to allow the cold gas spray system.
  • the core of the invention is therefore to achieve higher stagnation temperatures by means of additional thermal insulation, in order thereby to achieve higher flow velocities of the particles and thus, in turn, higher-quality coating qualities.
  • the insulating material is formed by or includes one or more of the following materials: porcelains, steatites, cordierite ceramics, alumina, in particular zirconia-reinforced, aluminum silicate, aluminum titanate, zirconium oxide, in particular stabilized variants, oxides of magnesium, beryllium or Titanium, silicon nitride, porous silicon carbide, in particular nitride bonded or recrystallized.
  • the panel is formed by an insert which consists wholly or partly of the insulating material and is inserted in the thermally protected portion of the cold gas spraying system that it separates the inner wall of the portion of the gas stream ,
  • this can be exchanged particularly easily and thus advantageously.
  • the cladding may be formed by a coating of the insulating material applied to the inner wall of the section and separating the inner wall of the section from the gas flow.
  • the thermally protected portion lies in the converging section of the Laval nozzle to a thermal stress and deformation of this relevant for the beam formation and acceleration of the gas section to avoid.
  • At least part of the insert is formed by a cone-shaped, in particular frusto-conical, sleeve, which is inserted into the converging section of the Laval nozzle.
  • a particularly simple replacement of the insert in the event of material wear is possible.
  • the thermally protected portion lies in the stagnation chamber.
  • the thermally protected portion extends from the stagnation chamber into the converging part of the Laval nozzle.
  • the thermal insulation is achieved by an insert which is formed by a sectionally cylindrical and partially cone-shaped, in particular frusto-conical, sleeve whose cylindrical portion is inserted in the stagnation chamber and its conical portion in the converging section of the Laval nozzle.
  • the thermally protected portion may extend into and / or through the nozzle throat.
  • the stagnation chamber can be opened and the insert and the stagnation chamber are designed such that the insert can be exchanged from the stagnation chamber.
  • the Laval nozzle 20 comprises a converging section 30 and a widening section 40.
  • the converging section 30 and the widening section 40 are through a nozzle throat 50, in which the cross-section of the Laval nozzle 20 is minimal, separated from each other.
  • a stagnation chamber 60 is connected at the converging section 30 of the Laval nozzle 20, a stagnation chamber 60 is connected.
  • the cross-sectional area A of the stagnation chamber 60 is much larger than the cross-sectional area A 'in the region of the nozzle neck 50, so that it in the region of the nozzle neck 50 and in the adjoining, widening portion 40 to a significant acceleration of the Laval nozzle 20 passing gas stream P comes.
  • the relatively low gas flow velocity (0 ⁇ Mach number ⁇ 1) in the stagnation chamber 60 is designated by the reference symbol Vu and the high supersonic gas flow velocity (Mach number> 1) in the subsection 40 by the reference symbol Vo.
  • a particle feed device 80 which feeds particles T into the gas G in the stagnation chamber 60.
  • the particles T are fed laterally from the edge into the stagnation chamber 60;
  • the particles T may be centered or at different spatial angles than in the FIG. 1 shown fed into the stagnation chamber 60.
  • a gas heater 90 is arranged, which heats the gas G before it enters the stagnation chamber 60 and the Laval nozzle 20.
  • the cold gas spraying system 10 according to the FIG. 1 can be operated as follows:
  • the particles T are fed into the gas G located in the stagnation chamber 60. Due to the large cross section A in the stagnation chamber 60, the gas flow velocity Vu of the gas flow P from the stagnation chamber 60 into the Laval nozzle 20 is still relatively small (0 ⁇ Mach number ⁇ 1). Only in the area of the nozzle throat 50 does the gas flow P accelerate considerably, resulting in a gas flow velocity Vo of the gas flow P in the expanding section 40 in the supersonic range (Mach number> 1).
  • the highest possible gas temperature is set in the stagnation chamber 60.
  • a thermal insulation material 100 or coated In order to avoid that in the converging section 30 of the Laval nozzle 20 overheating and concomitantly a deformation or destruction of the Laval nozzle 20 may occur, this is covered with a thermal insulation material 100 or coated.
  • the thermal insulation material 100 has a thermal conductivity below 20W / Km.
  • the insulating material 100 can be formed, for example, by one or more of the following ceramic materials: porcelains, steatites, cordierite ceramics, aluminum oxide, in particular zirconium-reinforced aluminum silicate, aluminum titanate, zirconium oxide, in particular stabilized variants, oxides of magnesium, beryllium or titanium, silicon nitride, porous silicon carbide, in particular nitride bonded or recrystallized.
  • ceramic materials porcelains, steatites, cordierite ceramics, aluminum oxide, in particular zirconium-reinforced aluminum silicate, aluminum titanate, zirconium oxide, in particular stabilized variants, oxides of magnesium, beryllium or titanium, silicon nitride, porous silicon carbide, in particular nitride bonded or recrystallized.
  • the lining is formed by a cone-shaped, in particular frustoconical, insert 110, which consists wholly or partly of said thermal insulation material 100 and is inserted or inserted into the Laval nozzle 20.
  • the insert 110 Through the insert 110, the gas flow P is separated from the inner wall 120 of the Laval nozzle 20, so that the inner wall 120 is thermally protected in the region of the insert 110.
  • the stagnation chamber 60 at its in the FIG. 1 left or right side can be opened to pull out the insert 110 in the event of wear from the Laval nozzle 20 and replace.
  • FIG. 2 a second embodiment of a cold gas spraying system 10 is shown.
  • the stagnation chamber 60 is thermally protected.
  • the inner wall 130 of the stagnation chamber 60 is lined or coated with the thermal insulation material 100.
  • the cladding is formed by an insert 140, which consists of or comprises the thermal insulation material 100 and rests against the inner wall 130 from the inside.
  • the insert 140 may for example be formed at least in sections by a cylindrical insertion sleeve.
  • the insertion sleeve in the event of wear of the in the FIG. 2 left or right side of the stagnation chamber 60 are exchanged.
  • the inner wall portion 200 adjacent to the Laval nozzle 20 is the stagnation chamber 60 and the inner wall portion 210 of the converging section 30 of the Laval nozzle 20 thermally protected.
  • the two inner wall sections 200 and 210 are lined with an insert 220 in the form of a sleeve or insertion sleeve, which has been inserted from the stagnation chamber 60 in this and in the Laval nozzle 20.
  • the insertion sleeve 220 is replaceable, so that it can be replaced in case of wear.
  • the plug-in sleeve 220 is partially cylindrical and partially conical, wherein the cylindrical portion in the stagnation chamber 60 and the cone-shaped portion in the converging section 40 of the Laval nozzle 20 is inserted or inserted.
  • FIG. 4 1 shows an exemplary embodiment of a cold gas spraying system 10, in which the stagnation chamber 60, the converging section 30 of the Laval nozzle 20, the nozzle neck 50 and a lower section 310 of the widening section 40 of the Laval nozzle 20 are thermally insulated.
  • a coating of a thermal insulation material is applied to the said sections, which has a thermal conductivity below 20 W / Km.
  • the stagnation chamber 60, the subsection 30, the nozzle throat 50, and the subsection 310 may also be made solid from a thermal insulation material having a conductivity below 20 W / Km.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Nozzles (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention relates to a cold gas spraying system (10) comprising a gas heating device (90) and a stagnation chamber (60) that is connected to the gas heating device (90). A Laval nozzle (20) that discharges a gas stream with incorporated particles (T) at an ultrasonic speed at the outlet end is connected to the stagnation chamber. Cold gas spraying systems of said type can be used, for example, for producing a coating on a surface by means of the accelerated particles. In order to achieve an even better layer quality when producing a coating, at least one section of the cold gas spraying system that is located downstream of the gas heating device in the direction of flow of the gas is thermally protected, the internal wall of said section being lined with or made of a ceramic insulation material which has a heat conductivity of less than 20 W/Km. The lining can be formed by a replaceable insert (110, 140), for example, which separates the internal wall of the section from the gas stream. Such an insert can have a sleeve, for example, a section of which is cylindrical and another section of which is conical, especially truncated, the cylindrical section being inserted into the stagnation chamber and the conical section being inserted into the convergent subsection of the Laval nozzle.

Description

Die Erfindung bezieht sich auf eine Kaltgasspritzanlage mit den Merkmalen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a cold gas spraying system having the features according to the preamble of claim 1.

Eine derartige Kaltgasspritzanlage wird beispielsweise von der Firma CGT Cold Gas Technology GmbH unter dem Produktnamen Kinetiks® 4000 Cold Spray System vertrieben. Die vorbekannte Kaltgasspritzanlage weist eine Gasheizeinrichtung zum Erhitzen eines Gases auf. An die Gasheizeinrichtung ist eine Stagnationskammer angeschlossen, die ausgangsseitig mit einer Lavaldüse verbunden ist. Lavaldüsen weisen bekanntermaßen einen zusammenlaufenden Teilabschnitt, einen sich an den zusammenlaufenden Teilabschnitt anschließenden Düsenhals sowie einen sich an den Düsenhals anschließenden aufweitenden Teilabschnitt auf. Die Lavaldüse gibt ausgangsseitig einen Gasstrom mit darin befindlichen Partikeln in Überschallgeschwindigkeit ab. Kaltgasspritzanlagen der beschriebenen Art können beispielsweise dazu verwendet werden, um mit den beschleunigten Partikeln eine Beschichtung auf einer Oberfläche zu erzeugen. Kaltgasspiritzanlagen sind in DE 10207519 und EP 1629899 offenbart.Such a cold gas spraying system is sold, for example, by CGT Cold Gas Technology GmbH under the product name Kinetiks® 4000 Cold Spray System. The previously known cold gas spraying system has a gas heater for heating a gas. To the gas heater a stagnation chamber is connected, which is the output side connected to a Laval nozzle. Laval nozzles are known to have a converging section, a nozzle neck adjoining the converging section and a widening section adjoining the nozzle neck. On the output side, the Laval nozzle emits a gas stream with particles in it at supersonic speed. Cold spray systems of the type described can be used, for example, to produce a coating on a surface with the accelerated particles. Kaltgasspiritzanlagen are in DE 10207519 and EP 1629899 disclosed.

Der Erfindung liegt die Aufgabe zugrunde, eine Kaltgasspritzanlage anzugeben, mit der sich eine noch bessere Schichtqualität beim Herstellen einer Beschichtung als bisher erreichen lässt.The invention has for its object to provide a cold gas spraying system with which an even better layer quality when producing a coating can be achieved than before.

Diese Aufgabe wird erfindungsgemäß durch eine Kaltgasspritzanlage mit den Merkmalen gemäß Patentanspruch 1 gelöst. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Kaltgasspritzanlage sind in Unteransprüchen angegeben.This object is achieved by a cold gas spraying with the features of claim 1. Advantageous embodiments of the cold gas spraying system according to the invention are specified in subclaims.

Danach ist erfindungsgemäß vorgesehen, dass zumindest ein - in Gasströmungsrichtung gesehen - hinter der Gasheizeinrichtung befindlicher Abschnitt der Kaltgasspritzanlage thermisch geschützt ist, in dem er innenwandseitig mit einem keramischen Isolationsmaterial, das eine thermische Leitfähigkeit (Wärmeleitfähigkeit) unter 20 Watt pro Kelvin und Meter (20 W/Km) aufweist, verkleidet ist oder aus einem solchen Material besteht.Thereafter, the invention provides that at least one - as seen in the gas flow direction - located behind the gas heater section of the cold gas spraying system in which he inside wall with a ceramic insulation material, the thermal conductivity (thermal conductivity) below 20 watts per Kelvin and meter (20 W. / Km), is covered or consists of such a material.

Die thermische Leitfähigkeit eines Isolationsmaterials wird üblicherweise für einen Temperaturbereich zwischen 30 und 100°C angegeben, und zwar, wie aufgeführt, in W/(K*m).The thermal conductivity of an insulating material is usually given for a temperature range between 30 and 100 ° C, as listed in W / (K * m).

Ein wesentlicher Vorteil der erfindungsgemäßen Kaltgasspritzanlage ist darin zu sehen, dass sich mit dieser höhere Strömungsgeschwindigkeiten des Gasstromes und damit höhere Partikelgeschwindigkeiten erreichen lassen als bei vorbekannten Kaltgasspritzanlagen. Dies ist konkret darauf zurückzuführen, dass sich aufgrund der erfindungsgemäß vorgesehenen thermischen Isolation zumindest eines in Gasströmungsrichtung gesehen hinter der Gasheizeinrichtung befindlichen Abschnitts größere Stagnationstemperaturen des Gases innerhalb der Kaltgasspritzanlage erreichen lassen als bisher. Erfinderseitig wurde erkannt, dass die erreichbaren Strömungsgeschwindigkeiten gegen Atmosphärendruck, und zwar sowohl die des Gasstromes als auch die der darin befindlichen Partikel, vorrangig von der Stagnationstemperatur des Gases und weniger von dem Stagnationsdruck des Gases abhängen. An dieser Stelle setzt die Erfindung an, indem erfindungsgemäß vorgesehen wird, noch höhere Stagnationstemperaturen als bisher zu ermöglichen; dies wird erreicht, indem ein oder mehrere hinter der Gasheizeinrichtung befindliche Abschnitte gezielt thermisch isoliert bzw. thermisch geschützt werden, um in diesen Abschnitten noch höhere Temperaturen ohne eine Beschädigung von Anlagenteilen der Kaltgasspritzanlage zu ermöglichen. Mit anderen Worten besteht der Kern der Erfindung also darin, durch eine zusätzliche thermische Isolation höhere Stagnationstemperaturen zu erzielen, um dadurch höhere Strömungsgeschwindigkeiten der Partikel und damit wiederum höherwertige Beschichtungsqualitäten zu erreichen.A significant advantage of the cold gas spray system according to the invention is the fact that can be achieved with this higher flow velocities of the gas stream and thus higher particle velocities than in prior art cold gas spraying. This is concretely attributable to the fact that, due to the thermal insulation provided according to the invention, of at least one section located behind the gas heating device in the gas flow direction, it is possible to achieve greater stagnation temperatures of the gas within the cold gas spraying installation than before. It has been recognized by the inventor that the achievable flow rates against atmospheric pressure, both those of the gas stream and those of the particles therein, depend primarily on the stagnation temperature of the gas and less on the stagnation pressure of the gas. At this point, the invention begins by providing according to the invention to allow even higher stagnation temperatures than before; This is achieved by one or more located behind the gas heater sections are specifically thermally insulated or thermally protected to even higher temperatures in these sections without damaging plant parts to allow the cold gas spray system. In other words, the core of the invention is therefore to achieve higher stagnation temperatures by means of additional thermal insulation, in order thereby to achieve higher flow velocities of the particles and thus, in turn, higher-quality coating qualities.

Vorzugsweise ist das Isolationsmaterial durch eines oder mehrere der folgenden Materialien gebildet oder enthält eines oder mehrere dieser zumindest auch: Porzellane, Steatite, Cordieritkeramiken, Aluminiumoxid, insbesondere Zirkonia-verstärktes, Aluminiumsilikat, Aluminiumtitanat, Zirkoniumoxid, insbesondere stabilisierte Varianten, Oxide von Magnesium, Beryllium oder Titan, Siliziumnitrid, poröses Siliziumkarbid, insbesondere nitridgebundenes oder rekristallisiertes.Preferably, the insulating material is formed by or includes one or more of the following materials: porcelains, steatites, cordierite ceramics, alumina, in particular zirconia-reinforced, aluminum silicate, aluminum titanate, zirconium oxide, in particular stabilized variants, oxides of magnesium, beryllium or Titanium, silicon nitride, porous silicon carbide, in particular nitride bonded or recrystallized.

Gemäß einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, dass die Verkleidung durch einen Einsatz gebildet ist, der ganz oder zum Teil aus dem Isolationsmaterial besteht und derart in dem thermisch zu schützenden Abschnitt der Kaltgasspritzanlage eingelegt ist, dass er die Innenwand des Abschnitts von dem Gasstrom trennt. Bei dieser Ausgestaltung wird erreicht, dass im Falle eines Verschleißes des thermischen Isolationsmaterials dieses besonders einfach und damit vorteilhaft ausgetauscht werden kann.According to a preferred embodiment of the invention it is provided that the panel is formed by an insert which consists wholly or partly of the insulating material and is inserted in the thermally protected portion of the cold gas spraying system that it separates the inner wall of the portion of the gas stream , In this embodiment, it is achieved that in the case of wear of the thermal insulation material, this can be exchanged particularly easily and thus advantageously.

Alternativ kann die Verkleidung durch eine Beschichtung aus dem Isolationsmaterial gebildet sein, die auf der Innenwand des Abschnitts aufgebracht ist und die Innenwand des Abschnitts von dem Gasstrom trennt.Alternatively, the cladding may be formed by a coating of the insulating material applied to the inner wall of the section and separating the inner wall of the section from the gas flow.

Besonders bevorzugt liegt der thermisch geschützte Abschnitt in dem zusammenlaufenden Teilabschnitt der Lavaldüse, um eine thermische Belastung und Verformung dieses für die Strahlbildung und Beschleunigung des Gases relevanten Teilabschnitts zu vermeiden.Particularly preferably, the thermally protected portion lies in the converging section of the Laval nozzle to a thermal stress and deformation of this relevant for the beam formation and acceleration of the gas section to avoid.

Vorzugsweise ist zumindest ein Teil des Einsatzes durch eine konusförmige, insbesondere kegelstumpfförmige, Hülse gebildet, die in den zusammenlaufenden Teilabschnitt der Lavaldüse eingelegt ist. Bei einer solchen Ausgestaltung ist ein besonders einfacher Austausch des Einsatzes im Falle eines Materialverschleißes möglich.Preferably, at least part of the insert is formed by a cone-shaped, in particular frusto-conical, sleeve, which is inserted into the converging section of the Laval nozzle. In such a configuration, a particularly simple replacement of the insert in the event of material wear is possible.

Alternativ kann vorgesehen sein, dass der thermisch geschützte Abschnitt in der Stagnationskammer liegt.Alternatively it can be provided that the thermally protected portion lies in the stagnation chamber.

Vorzugsweise erstreckt sich der thermisch geschützte Abschnitt von der Stagnationskammer aus in den zusammenlaufenden Teil der Lavaldüse. Beispielsweise wird die thermische Isolation durch einen Einsatz erreicht, der durch eine abschnittsweise zylindrische und abschnittsweise konusförmige, insbesondere kegelstumpfförmige, Hülse gebildet ist, deren zylindrischer Abschnitt in der Stagnationskammer und deren konusförmiger Abschnitt in den zusammenlaufenden Teilabschnitt der Lavaldüse eingelegt ist. Auch kann sich der thermisch geschützte Abschnitt bis in den Düsenhals hinein und/oder durch diesen hindurch erstrecken.Preferably, the thermally protected portion extends from the stagnation chamber into the converging part of the Laval nozzle. For example, the thermal insulation is achieved by an insert which is formed by a sectionally cylindrical and partially cone-shaped, in particular frusto-conical, sleeve whose cylindrical portion is inserted in the stagnation chamber and its conical portion in the converging section of the Laval nozzle. Also, the thermally protected portion may extend into and / or through the nozzle throat.

Im Hinblick auf eine kostengünstige Wartung der Kaltgasspritzanlage wird es als vorteilhaft angesehen, wenn die Stagnationskammer geöffnet werden kann und der Einsatz und die Stagnationskammer derart ausgestaltet sind, dass der Einsatz von der Stagnationskammer aus ausgetauscht werden kann.With regard to cost-effective maintenance of the cold gas spraying system, it is considered advantageous if the stagnation chamber can be opened and the insert and the stagnation chamber are designed such that the insert can be exchanged from the stagnation chamber.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert; dabei zeigen beispielhaft

Figur 1
ein erstes Ausführungsbeispiel für eine Kaltgasspritzanlage, bei der der zusammenlaufende Teilabschnitt der Lavaldüse der Kaltgasspritzanlage thermisch geschützt ist,
Figur 2
ein zweites Ausführungsbeispiel für eine Kaltgasspritzanlage, bei der die Stagnationskammer thermisch geschützt ist,
Figur 3
ein drittes Ausführungsbeispiel für eine Kaltgasspritzanlage, bei der ein Abschnitt der Stagnationskammer der Kaltgasspritzanlage sowie der daran angrenzende zusammenlaufende Teilabschnitt der Lavaldüse thermisch geschützt ist, und
Figur 4
ein Ausführungsbeispiel für eine Kaltgasspritzanlage, bei der sich der thermisch geschützte Abschnitt von der Stagnationskammer über den zusammenlaufenden Teilabschnitt der Lavaldüse bis in den sich aufweitenden Teilabschnitt der Lavaldüse erstreckt.
The invention will be explained in more detail with reference to embodiments; thereby show by way of example
FIG. 1
a first embodiment of a cold gas spray system in which the converging section of the Laval nozzle of the cold gas spraying system is thermally protected,
FIG. 2
A second embodiment of a cold gas spray system in which the stagnation chamber is thermally protected,
FIG. 3
a third embodiment of a cold gas spray system in which a portion of the stagnation chamber of the cold gas spraying system and the adjoining converging section of the Laval nozzle is thermally protected, and
FIG. 4
An exemplary embodiment of a cold gas spraying system in which the thermally protected portion extends from the stagnation chamber over the converging section of the Laval nozzle into the widening portion of the Laval nozzle.

In den Figuren werden der Übersicht halber für identische oder vergleichbare Komponenten stets dieselben Bezugszeichen verwendet.For the sake of clarity, the same reference numbers are always used in the figures for identical or comparable components.

In der Figur 1 erkennt man eine Kaltgasspritzanlage 10, die mit einer Lavaldüse 20 ausgestattet ist. Die Lavaldüse 20 umfasst einen zusammenlaufenden Teilabschnitt 30 und einen sich aufweitenden Teilabschnitt 40. Der zusammenlaufende Teilabschnitt 30 und der sich aufweitende Teilabschnitt 40 sind durch einen Düsenhals 50, bei dem der Querschnitt der Lavaldüse 20 minimal ist, voneinander getrennt.In the FIG. 1 One recognizes a cold gas spraying system 10, which is equipped with a Laval nozzle 20. The Laval nozzle 20 comprises a converging section 30 and a widening section 40. The converging section 30 and the widening section 40 are through a nozzle throat 50, in which the cross-section of the Laval nozzle 20 is minimal, separated from each other.

An den zusammenlaufenden Teilabschnitt 30 der Lavaldüse 20 ist eine Stagnationskammer 60 angeschlossen. Wie sich in der Figur 1 erkennen lässt, ist die Querschnittsfläche A der Stagnationskammer 60 sehr viel größer als die Querschnittsfläche A' im Bereich des Düsenhalses 50, so dass es im Bereich des Düsenhalses 50 sowie in dem sich daran anschließenden, sich aufweitenden Teilabschnitt 40 zu einer signifikanten Beschleunigung eines durch die Lavaldüse 20 hindurchtretenden Gasstromes P kommt. Die relativ geringe Gasstromgeschwindigkeit (0 ≈ Machzahl << 1) in der Stagnationskammer 60 ist mit dem Bezugszeichen Vu und die hohe Überschall-Gasstromgeschwindigkeit (Machzahl > 1) im Teilabschnitt 40 mit dem Bezugszeichen Vo gekennzeichnet.At the converging section 30 of the Laval nozzle 20, a stagnation chamber 60 is connected. As reflected in the FIG. 1 can be seen, the cross-sectional area A of the stagnation chamber 60 is much larger than the cross-sectional area A 'in the region of the nozzle neck 50, so that it in the region of the nozzle neck 50 and in the adjoining, widening portion 40 to a significant acceleration of the Laval nozzle 20 passing gas stream P comes. The relatively low gas flow velocity (0 ≈ Mach number << 1) in the stagnation chamber 60 is designated by the reference symbol Vu and the high supersonic gas flow velocity (Mach number> 1) in the subsection 40 by the reference symbol Vo.

In die Stagnationskammer 60 hinein erstreckt sich eine Partikeleinspeisungseinrichtung 80, die Partikel T in das in der Stagnationskammer 60 befindliche Gas G einspeist. Bei dem Ausführungsbeispiel gemäß der Figur 1 werden die Partikel T seitlich vom Rand in die Stagnationskammer 60 eingespeist; dies ist jedoch nur beispielhaft zu verstehen: Die Partikel T können mittig oder unter anderen räumlichen Winkeln als in der Figur 1 dargestellt in die Stagnationskammer 60 eingespeist werden.Into the stagnation chamber 60 extends a particle feed device 80, which feeds particles T into the gas G in the stagnation chamber 60. In the embodiment according to the FIG. 1 the particles T are fed laterally from the edge into the stagnation chamber 60; However, this is only to be understood as an example: The particles T may be centered or at different spatial angles than in the FIG. 1 shown fed into the stagnation chamber 60.

In Gasströmungsrichtung gesehen vor der Stagnationskammer 60 ist eine Gasheizeinrichtung 90 angeordnet, die das Gas G aufwärmt, bevor es in die Stagnationskammer 60 und in die Lavaldüse 20 gelangt.As viewed in the gas flow direction in front of the stagnation chamber 60, a gas heater 90 is arranged, which heats the gas G before it enters the stagnation chamber 60 and the Laval nozzle 20.

Die Kaltgasspritzanlage 10 gemäß der Figur 1 lässt sich wie folgt betreiben:The cold gas spraying system 10 according to the FIG. 1 can be operated as follows:

Mit der Partikeleinspeisungseinrichtung 80 werden die Partikel T in das in der Stagnationskammer 60 befindliche Gas G eingespeist. Aufgrund des großen Querschnitts A in der Stagnationskammer 60 ist die Gasstromgeschwindigkeit Vu des Gasstromes P von der Stagnationskammer 60 in die Lavaldüse 20 noch relativ klein (0 ≈ Machzahl << 1). Erst im Bereich des Düsenhalses 50 kommt es zu einer erheblichen Beschleunigung des Gasstromes P, wodurch sich im aufweitenden Teilabschnitt 40 eine Gasstromgeschwindigkeit Vo des Gasstromes P im Überschallbereich (Machzahl > 1) ergibt.With the particle feed device 80, the particles T are fed into the gas G located in the stagnation chamber 60. Due to the large cross section A in the stagnation chamber 60, the gas flow velocity Vu of the gas flow P from the stagnation chamber 60 into the Laval nozzle 20 is still relatively small (0 ≈ Mach number << 1). Only in the area of the nozzle throat 50 does the gas flow P accelerate considerably, resulting in a gas flow velocity Vo of the gas flow P in the expanding section 40 in the supersonic range (Mach number> 1).

Um eine möglichst große Strömungsgeschwindigkeit des Gasstromes P im Teilabschnitt 40 zu erreichen, wird in der Stagnationskammer 60 eine möglichst hohe Gastemperatur eingestellt. Um dabei zu vermeiden, dass in dem zusammenlaufenden Teilabschnitt 30 der Lavaldüse 20 eine Überhitzung und damit einhergehend eine Deformation oder Zerstörung der Lavaldüse 20 auftreten kann, ist diese mit einem thermischen Isolationsmaterial 100 verkleidet oder beschichtet. Das thermische Isolationsmaterial 100 weist eine thermische Leitfähigkeit unter 20W/Km auf.In order to achieve the greatest possible flow velocity of the gas flow P in the section 40, the highest possible gas temperature is set in the stagnation chamber 60. In order to avoid that in the converging section 30 of the Laval nozzle 20 overheating and concomitantly a deformation or destruction of the Laval nozzle 20 may occur, this is covered with a thermal insulation material 100 or coated. The thermal insulation material 100 has a thermal conductivity below 20W / Km.

Das Isolationsmaterial 100 kann beispielsweise durch eines oder mehrere der folgenden Keramik-Materialien gebildet sein oder diese zumindest auch enthalten: Porzellane, Steatite, Cordieritkeramiken, Aluminiumoxid, insbesondere Zirkonia-verstärktes, Aluminiumsilikat, Aluminiumtitanat, Zirkoniumoxid, insbesondere stabilisierte Varianten, Oxide von Magnesium, Beryllium oder Titan, Siliziumnitrid, poröses Siliziumkarbid, insbesondere nitridgebundenes oder rekristallisiertes.The insulating material 100 can be formed, for example, by one or more of the following ceramic materials: porcelains, steatites, cordierite ceramics, aluminum oxide, in particular zirconium-reinforced aluminum silicate, aluminum titanate, zirconium oxide, in particular stabilized variants, oxides of magnesium, beryllium or titanium, silicon nitride, porous silicon carbide, in particular nitride bonded or recrystallized.

Beispielsweise ist in dem zusammenlaufenden Teilabschnitt 30 der Lavaldüse 20 die Verkleidung durch einen konusförmigen, insbesondere kegelstumpfförmigen, Einsatz 110 gebildet, der ganz oder zum Teil aus dem genannten thermischen Isolationsmaterial 100 besteht und in die Lavaldüse 20 eingelegt bzw. eingeschoben ist. Durch den Einsatz 110 wird der Gasstrom P von der Innenwand 120 der Lavaldüse 20 getrennt, so dass die Innenwand 120 im Bereich des Einsatzes 110 thermisch geschützt wird.For example, in the converging section 30 of the Laval nozzle 20, the lining is formed by a cone-shaped, in particular frustoconical, insert 110, which consists wholly or partly of said thermal insulation material 100 and is inserted or inserted into the Laval nozzle 20. Through the insert 110, the gas flow P is separated from the inner wall 120 of the Laval nozzle 20, so that the inner wall 120 is thermally protected in the region of the insert 110.

Vorzugsweise kann die Stagnationskammer 60 an ihrer in der Figur 1 linken oder rechten Seite geöffnet werden, um den Einsatz 110 im Falle eines Verschleißes aus der Lavaldüse 20 herausziehen und austauschen zu können.Preferably, the stagnation chamber 60 at its in the FIG. 1 left or right side can be opened to pull out the insert 110 in the event of wear from the Laval nozzle 20 and replace.

In der Figur 2 ist ein zweites Ausführungsbeispiel für eine Kaltgasspritzanlage 10 gezeigt. Im Unterschied zu dem ersten Ausführungsbeispiel gemäß Figur 1 ist die Stagnationskammer 60 thermisch geschützt. So erkennt man in der Figur 2, dass die Innenwand 130 der Stagnationskammer 60 mit dem thermischen Isolationsmaterial 100 verkleidet oder beschichtet ist. Beispielsweise wird die Verkleidung durch einen Einsatz 140 gebildet, der aus dem thermischen Isolationsmaterial 100 besteht oder dieses aufweist und von innen an der Innenwand 130 anliegt. Der Einsatz 140 kann beispielsweise zumindest abschnittsweise durch eine zylindrische Einschubhülse gebildet sein. Vorzugsweise kann die Einschubhülse im Falle eines Verschleißes von der in der Figur 2 linken oder rechten Seite der Stagnationskammer 60 aus ausgetauscht werden.In the FIG. 2 a second embodiment of a cold gas spraying system 10 is shown. In contrast to the first embodiment according to FIG. 1 the stagnation chamber 60 is thermally protected. So one recognizes in the FIG. 2 in that the inner wall 130 of the stagnation chamber 60 is lined or coated with the thermal insulation material 100. For example, the cladding is formed by an insert 140, which consists of or comprises the thermal insulation material 100 and rests against the inner wall 130 from the inside. The insert 140 may for example be formed at least in sections by a cylindrical insertion sleeve. Preferably, the insertion sleeve in the event of wear of the in the FIG. 2 left or right side of the stagnation chamber 60 are exchanged.

In der Figur 3 ist ein weiteres Ausführungsbeispiel für eine Kaltgasspritzanlage 10 gezeigt. Bei diesem Ausführungsbeispiel sind der an die Lavaldüse 20 angrenzende Innenwandabschnitt 200 der Stagnationskammer 60 sowie der Innenwandabschnitt 210 des zusammenlaufenden Teilabschnitts 30 der Lavaldüse 20 thermisch geschützt. Beispielsweise sind die beiden Innenwandabschnitte 200 und 210 mit einem Einsatz 220 in Form einer Hülse oder Einschubhülse verkleidet, die von der Stagnationskammer 60 aus in diese sowie in die Lavaldüse 20 eingesetzt worden ist. Vorzugsweise ist die Einschubhülse 220 auswechselbar, so dass sie im Falle eines Verschleißes ausgewechselt werden kann. Wie sich in der Figur 3 erkennen lässt, ist die Einschubhülse 220 abschnittsweise zylindrisch und abschnittsweise konusförmig, wobei der zylindrische Abschnitt in der Stagnationskammer 60 und der konusförmige Abschnitt in dem zusammenlaufenden Teilabschnitt 40 der Lavaldüse 20 eingelegt bzw. eingeschoben ist.In the FIG. 3 a further embodiment for a cold gas spray system 10 is shown. In this embodiment, the inner wall portion 200 adjacent to the Laval nozzle 20 is the stagnation chamber 60 and the inner wall portion 210 of the converging section 30 of the Laval nozzle 20 thermally protected. For example, the two inner wall sections 200 and 210 are lined with an insert 220 in the form of a sleeve or insertion sleeve, which has been inserted from the stagnation chamber 60 in this and in the Laval nozzle 20. Preferably, the insertion sleeve 220 is replaceable, so that it can be replaced in case of wear. As reflected in the FIG. 3 can recognize the plug-in sleeve 220 is partially cylindrical and partially conical, wherein the cylindrical portion in the stagnation chamber 60 and the cone-shaped portion in the converging section 40 of the Laval nozzle 20 is inserted or inserted.

In der Figur 4 ist ein Ausführungsbeispiel für eine Kaltgasspritzanlage 10 gezeigt, bei der die Stagnationskammer 60, der zusammenlaufende Teilabschnitt 30 der Lavaldüse 20, der Düsenhals 50 sowie ein Unterabschnitt 310 des sich aufweitenden Teilabschnitts 40 der Lavaldüse 20 thermisch isoliert sind. Beispielsweise ist auf die genannten Abschnitte eine Beschichtung aus einem thermischen Isolationsmaterial aufgebracht, das eine thermische Leitfähigkeit unter 20 W/Km aufweist. Alternativ können die Stagnationskammer 60, der Teilabschnitt 30, der Düsenhals 50 und der Unterabschnitt 310 auch massiv aus einem thermischen Isolationsmaterial bestehen, das eine Leitfähigkeit unter 20 W/Km aufweist.In the FIG. 4 1 shows an exemplary embodiment of a cold gas spraying system 10, in which the stagnation chamber 60, the converging section 30 of the Laval nozzle 20, the nozzle neck 50 and a lower section 310 of the widening section 40 of the Laval nozzle 20 are thermally insulated. For example, a coating of a thermal insulation material is applied to the said sections, which has a thermal conductivity below 20 W / Km. Alternatively, the stagnation chamber 60, the subsection 30, the nozzle throat 50, and the subsection 310 may also be made solid from a thermal insulation material having a conductivity below 20 W / Km.

Claims (11)

  1. Cold gas spraying system (10) having
    - a gas heating device (90),
    - a stagnation chamber (60) connected indirectly or directly to the gas heating device (90) and
    - a Laval nozzle (20) which is connected on the input side to the stagnation chamber (60) and on the output side discharges a gas stream (P) containing particles (T) with a supersonic speed,
    characterized in that
    - at least one section of the cold gas spraying system lying behind the gas heating device (90) - as seen in the gas flow direction - is thermally protected,
    - by being clad on the inner wall side with a ceramic insulation material which has a thermal conductivity of less than 20 W/Km, or consisting thereof.
  2. Cold gas spraying system according to Claim 1, characterized in that
    the insulation material is formed by one or more of the following materials or at least also contains one or more of them: porcelains, steatites, cordierite ceramics; aluminum oxide, in particular zirconium-reinforced; aluminum silicate; aluminum titanate; zirconium oxide, in particular stabilized variants; oxides of magnesium, beryllium or titanium; silicon nitride; porous silicon carbide, in particular nitride-bonded or recrystallized.
  3. Cold gas spraying system according to one of the preceding claims,
    characterized in that
    the cladding is formed by an insert (110, 140) which consists entirely or in part of the insulating material and is placed in the thermally protected section of the cold gas spraying system so that it separates the inner wall of the section from the gas stream.
  4. Cold gas spraying system according to one of the preceding claims,
    characterized in that
    the cladding is formed by a coating of the insulation material, which is applied on the inner wall of the section and separates the inner wall of the section from the gas stream.
  5. Cold gas spraying system according to one of the preceding claims,
    characterized in that
    the thermally protected section lies in the converging subsection of the Laval nozzle.
  6. Cold gas spraying system according to Claim 5,
    characterized in that
    at least a part of the insert is formed by a conical, in particular frustoconical sleeve, which is placed in the converging subsection of the Laval nozzle.
  7. Cold gas spraying system according to one of the preceding claims,
    characterized in that
    the thermally protected section lies in the stagnation chamber.
  8. Cold gas spraying system according to Claim 7,
    characterized in that the thermally protected section extends from the stagnation chamber out of the stagnation chamber into the converging part of the Laval nozzle.
  9. Cold gas spraying system according to claim 8,
    characterized in that
    the insert has a sleeve which in one section is cylindrical and in another section is conical, in particular frustoconical, the cylindrical section of which is placed in the stagnation chamber and the conical section of which is placed in the converging subsection of the Laval nozzle.
  10. Cold gas spraying system according to one of the preceding claims,
    characterized in that
    the thermally protected section extends into the nozzle neck and/or through it.
  11. Cold gas spraying system according to one of the preceding claims,
    characterized in that
    - the stagnation chamber (60) can be opened, and
    - the insert and the stagnation chamber are configured so that the insert can be taken out of the stagnation chamber and replaced.
EP09729463A 2008-04-11 2009-03-24 Cold gas spraying system Active EP2260119B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008019682A DE102008019682A1 (en) 2008-04-11 2008-04-11 Cold spray system
PCT/EP2009/053462 WO2009124839A2 (en) 2008-04-11 2009-03-24 Cold gas spraying system

Publications (2)

Publication Number Publication Date
EP2260119A2 EP2260119A2 (en) 2010-12-15
EP2260119B1 true EP2260119B1 (en) 2012-08-15

Family

ID=40765713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09729463A Active EP2260119B1 (en) 2008-04-11 2009-03-24 Cold gas spraying system

Country Status (7)

Country Link
US (1) US20110094439A1 (en)
EP (1) EP2260119B1 (en)
CN (1) CN101999011B (en)
CA (1) CA2721114C (en)
DE (1) DE102008019682A1 (en)
DK (1) DK2260119T3 (en)
WO (1) WO2009124839A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11662300B2 (en) 2019-09-19 2023-05-30 Westinghouse Electric Company Llc Apparatus for performing in-situ adhesion test of cold spray deposits and method of employing
US11898986B2 (en) 2012-10-10 2024-02-13 Westinghouse Electric Company Llc Systems and methods for steam generator tube analysis for detection of tube degradation
US11935662B2 (en) 2019-07-02 2024-03-19 Westinghouse Electric Company Llc Elongate SiC fuel elements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160053380A1 (en) * 2013-05-03 2016-02-25 United Technologies Corporation High temperature and high pressure portable gas heater
EP3049189B1 (en) * 2013-09-25 2019-10-30 United Technologies Corporation Simplified cold spray nozzle and gun
JP6716204B2 (en) * 2015-06-24 2020-07-01 日本発條株式会社 Film forming method and film forming apparatus
WO2020179100A1 (en) * 2019-03-01 2020-09-10 株式会社カワタ Powder coating device and coating method, powder dispersion device, and powder dispersion method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1162934A (en) * 1994-09-19 1997-10-22 Ast控股有限公司 Nozzle for coupling electromagnetic energy and heatable composition
US6417126B1 (en) * 2000-02-24 2002-07-09 C-Max Technology, Inc. Ceramics and process for producing
DE10207519A1 (en) * 2002-02-22 2003-09-11 Linde Ag Cold gas spraying nozzle used for accelerating gas and sprayed particles e.g. in flame spraying comprises a main body and a wear-resistant nozzle element arranged in the region of the nozzle throat to form the inner wall of the nozzle
US7163603B2 (en) * 2002-06-24 2007-01-16 Tokyo Electron Limited Plasma source assembly and method of manufacture
US20060038044A1 (en) * 2004-08-23 2006-02-23 Van Steenkiste Thomas H Replaceable throat insert for a kinetic spray nozzle
JP2006179856A (en) * 2004-11-25 2006-07-06 Fuji Electric Holdings Co Ltd Insulating substrate and semiconductor device
US20070074656A1 (en) * 2005-10-04 2007-04-05 Zhibo Zhao Non-clogging powder injector for a kinetic spray nozzle system
DE102006014124A1 (en) * 2006-03-24 2007-09-27 Linde Ag Cold spray gun

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11898986B2 (en) 2012-10-10 2024-02-13 Westinghouse Electric Company Llc Systems and methods for steam generator tube analysis for detection of tube degradation
US11935662B2 (en) 2019-07-02 2024-03-19 Westinghouse Electric Company Llc Elongate SiC fuel elements
US11662300B2 (en) 2019-09-19 2023-05-30 Westinghouse Electric Company Llc Apparatus for performing in-situ adhesion test of cold spray deposits and method of employing

Also Published As

Publication number Publication date
WO2009124839A3 (en) 2010-02-18
US20110094439A1 (en) 2011-04-28
CA2721114C (en) 2017-04-25
EP2260119A2 (en) 2010-12-15
CN101999011B (en) 2013-08-21
DK2260119T3 (en) 2012-11-26
WO2009124839A2 (en) 2009-10-15
CA2721114A1 (en) 2009-10-15
CN101999011A (en) 2011-03-30
DE102008019682A1 (en) 2009-10-15

Similar Documents

Publication Publication Date Title
EP2260119B1 (en) Cold gas spraying system
EP1999297B1 (en) Cold-gas spray gun
EP1390152B1 (en) Cold gas spraying method and device
EP3083107B1 (en) Device and method for melting a material without a crucible and for atomizing the melted material in order to produce powder
EP3102335B1 (en) Cooling device for a spraying nozzle or spraying nozzle assembly with a cooling device for thermal spraying
EP2108051B1 (en) Method and device for the cold-gas spraying of particles having different solidities and/or ductilities
EP1888803B1 (en) Apparatus for gas-dynamic applying coatings and method of coating
EP2558217B1 (en) Externally mixing multi-component nozzle
EP1022078B1 (en) Process and apparatus for preparing metal powder by gas atomisation
EP1791645B1 (en) Method for cold gas spraying and cold gas spraying pistol with increased retention time for the powder in the gas stream
DE10319481A1 (en) Laval nozzle use for cold gas spraying, includes convergent section and divergent section such that portion of divergent section of nozzle has bell-shaped contour
EP1785679A1 (en) Device for heating gas under high pressure
EP2872258B1 (en) Cold gas spray gun with powder injector
WO2011057612A1 (en) Method and device for coating components
DE102007034549A1 (en) Compressed air-supported two-fluid nozzle for atomization of liquid, has mixing chamber in which liquid and primary atomization compressed air directly contact with each other at entrance
DE19752245A1 (en) Twin substance nozzle for atomized spray
DE102005038453B4 (en) Method and device for thermal spraying of suspensions
DE102006022282A1 (en) Cold spray gun
DE102019101860A1 (en) Diffusion joining method and device therefor
EP2127759A1 (en) Cold gas spraying device and method for cold gas spraying
DE10207519A1 (en) Cold gas spraying nozzle used for accelerating gas and sprayed particles e.g. in flame spraying comprises a main body and a wear-resistant nozzle element arranged in the region of the nozzle throat to form the inner wall of the nozzle
EP2014415A1 (en) Method for treatment of a surface of a gas turbine engine component
EP1506816A1 (en) Laval nozzle for thermal or kinetical spraying
DE102014003877A1 (en) Method and device for on-line cleaning of two-substance nozzles
DE102010001454A1 (en) Device for manufacturing web, particularly hot melt adhesive, on surface of workpieces, is provided with supply line for web-forming material, compressed gas source and spray head

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: 20100917

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 570902

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120815

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009004408

Country of ref document: DE

Effective date: 20121011

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121215

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121115

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121116

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121217

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009004408

Country of ref document: DE

Effective date: 20130516

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 20130331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130324

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 570902

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120815

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090324

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140324

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCOW

Free format text: NEW ADDRESS: WERNER-VON-SIEMENS-STRASSE 1, 80333 MUENCHEN (DE)

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230317

Year of fee payment: 15

Ref country code: DK

Payment date: 20230323

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220620

Year of fee payment: 15

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230510

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230612

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230403

Year of fee payment: 15