EP2127759A1 - Installation de pulvérisation à gaz froid et procédé de pulvérisation à gaz froid - Google Patents

Installation de pulvérisation à gaz froid et procédé de pulvérisation à gaz froid Download PDF

Info

Publication number
EP2127759A1
EP2127759A1 EP08011861A EP08011861A EP2127759A1 EP 2127759 A1 EP2127759 A1 EP 2127759A1 EP 08011861 A EP08011861 A EP 08011861A EP 08011861 A EP08011861 A EP 08011861A EP 2127759 A1 EP2127759 A1 EP 2127759A1
Authority
EP
European Patent Office
Prior art keywords
gas
cold gas
cold
pressure vessel
heating element
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Withdrawn
Application number
EP08011861A
Other languages
German (de)
English (en)
Inventor
Walter Kokott
Werner Krömmer
Tobias Schmidt
Peter Heinrich
Heinrich Prof. Dr. Kreye
Peter Richter
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP2127759A1 publication Critical patent/EP2127759A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B05B7/1404—Arrangements for supplying particulate material

Definitions

  • the present invention relates to a cold gas spray system, in particular cold gas spray gun, according to the preamble of claim 1.
  • the present invention further relates to a method for cold gas spraying according to the preamble of claim 10.
  • the cold gas spraying is a coating method in which a powdered coating material is applied to a carrier material at a very high speed.
  • the powder particles are injected into a gas jet of process gas, wherein the gas jet was previously accelerated to supersonic speed by expansion in a mostly laval-like shaped nozzle.
  • the injected spray particles are accelerated by injection into the gas jet to such a high speed that, in contrast to other thermal spray processes, they form a dense and firmly adhering layer upon impact with the substrate even without prior melting or melting.
  • the process gas can be heated in this case, as for example in the publication EP 0 924 315 A1 is disclosed in the prior art.
  • the hot gas is fed into the spray gun.
  • the present invention has the object, a cold gas spraying of the type mentioned and a method of the type mentioned in such a way that long heating and lead times avoided in a reliable manner can be.
  • the present invention is based on countercurrent gas flow in the pressure vessel shell for cooling the outer shell.
  • the (process) gas jet is thus at least partially guided in at least one countercurrent, in particular along the outer wall of the gas heater in order to preheat the gas thereby.
  • the gas thus flows into the system, turns by about 180 degrees and flows within the pressure vessel, in particular along the outer wall, to the rear, to turn there again by about 180 degrees and to flow into the actual heater.
  • the gas in the front region of the cold gas spraying system in particular the cold gas spray gun, occurs essentially eccentrically, in order to immediately achieve a uniform heat removal from the front region of the pressure vessel via a rotating flow.
  • the pressure vessel may be formed from aluminum and / or from at least one aluminum alloy and / or from steel and / or from at least one steel alloy and / or from titanium and / or from at least one titanium alloy.
  • At least one flow distribution element can be arranged in the inflow region of the pressure vessel, in particular at the inlet of the heating element, substantially over the inflowing gas distributed the entire width of the heating element.
  • the heating element may be formed of heat-resistant electrical heating wires, which have power supply lines and / or heat-resistant passages through the wall of the pressure vessel.
  • At least one perforated ring may be arranged at the location where the gas from the cylindrical gap enters the dome-shaped lid for the purpose of pre-distribution of the gas.
  • the gas heater can be conveniently cooled on the inside.
  • the heated gas flows into the cold gas spray nozzle;
  • the powder is, that is, the (spray) particles are injected after the heater.
  • the gas flows directly farther into the nozzle (nozzle in front of the heater), but an option according to the present invention is that the gas again turns about 180 degrees before entering the nozzle (nozzle attachable above the heater; this is a compact solution but associated with the gas by a further route).
  • At least one external and / or separate gas preheating is also possible;
  • hot gas is passed to the cold gas spray system, in particular to the cold gas spray gun.
  • the advantages of the present invention are not only in a - not least in hand-held operation relevant - simple and practical handling and lightweight construction of the gun with a given security protection to see; rather, the straight gas guide offers the gas the smallest possible surface; this is significant in that uninsulated surfaces of solid components (such as pressure vessels, tubes, pre-chamber) cause heat loss and thermal inertia, which in turn leads to long heating and lead times, which should be minimized in a handgun as best as possible.
  • solid components such as pressure vessels, tubes, pre-chamber
  • Fig. 3 and Fig. 4 illustrated first and second embodiment of the present invention is a mobile and inexpensive to produce plant 100 or 100 'for the cold gas spraying in the form of a cold gas spray gun, which is characterized by its modular design and thus by their expandability and according to the invention in the counter-current direction G in the gas flow
  • Pressure vessel shell 10 is based to cool the outer shell (-> preheating the gas jet by passing along the outer wall of the gas heater 30 in a counterflow).
  • the gas jet thus flows into the cold gas spraying system 100, 100 ', turns through 180 degrees and flows along the outer wall to the rear, in order to turn again through 180 degrees and to flow into the actual heater 30.
  • Fig. 1 . Fig. 2 or the Fig. 3 Removable enters the gas in the front region of the cold gas spraying 100 or 100 'eccentrically (reference numeral 50 in Fig. 2 ) in order to achieve a uniform heat removal from the front region of the pressure vessel 10 via a rotating flow.
  • the eccentric gas inlet 50 so the immediate construction of a circulating flow for the purpose of uniform cooling is guaranteed.
  • a flow distribution element 40 in the form of a perforated plate or perforated disc is provided at the inlet of the heating cartridge 20. Through this gas distributor 40, each heating channel can be flowed individually.
  • a perforated ring 42 is arranged for the purpose of pre-distribution of the gas flow.
  • the gas heater 30 can be cooled on the inside.
  • the heated gas flows into the (in Fig. 1 to Fig. 4 only cold gas spraying nozzle, for example in the form of a Laval nozzle, not shown purely for reasons of clarity of illustration);
  • the powder is, that is, the (injection) particles are injected only behind the heater 30, wherein this powder injection takes place in the (pre-) chamber 70, mix in the powder and gas.
  • the gas flows directly further into the nozzle (see the first embodiment the cold gas spray system 100 according to Fig. 1 and Fig. 2 ), but according to the second embodiment of the cold gas spray system 100 '(see. Fig. 3 and Fig. 4 ) one option is to turn the gas again about 180 degrees before entering the nozzle.
  • the nozzle is arranged above the heater 30 by means of a holder 80, which is a compact solution, but associated with the gas with a further path.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nozzles (AREA)
EP08011861A 2008-05-30 2008-07-01 Installation de pulvérisation à gaz froid et procédé de pulvérisation à gaz froid Withdrawn EP2127759A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810026032 DE102008026032A1 (de) 2008-05-30 2008-05-30 Kaltgasspritzanlage und Verfahren zum Kaltgasspritzen

Publications (1)

Publication Number Publication Date
EP2127759A1 true EP2127759A1 (fr) 2009-12-02

Family

ID=39731559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08011861A Withdrawn EP2127759A1 (fr) 2008-05-30 2008-07-01 Installation de pulvérisation à gaz froid et procédé de pulvérisation à gaz froid

Country Status (2)

Country Link
EP (1) EP2127759A1 (fr)
DE (1) DE102008026032A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112281151A (zh) * 2020-10-30 2021-01-29 遵义市欣茂汇机电有限公司 一种耐磨涂层低温超音速喷涂装置及方法
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014010439A1 (de) * 2014-07-16 2016-01-21 IMPACT-Innovations-GmbH Kaltgasspritzvorrichtung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028095A (en) * 1934-05-14 1936-01-14 Tulcran Inc Air heating device
US2101922A (en) * 1935-02-19 1937-12-14 Stoesling Ludwig Spraying apparatus
US2267264A (en) * 1940-05-14 1941-12-23 James G Bland Air conduit heater
US2819378A (en) * 1956-03-26 1958-01-07 United Shoe Machinery Corp Heat blowers
US4065057A (en) * 1976-07-01 1977-12-27 Durmann George J Apparatus for spraying heat responsive materials
DE69016433T2 (de) 1990-05-19 1995-07-20 Papyrin Anatolij Nikiforovic Beschichtungsverfahren und -vorrichtung.
EP0924315A1 (fr) 1997-12-18 1999-06-23 Linde Aktiengesellschaft Production de gaz chaud pour la pulvérisation thermique
DE102005004117A1 (de) 2004-09-24 2006-04-06 Linde Ag Verfahren und Vorrichtung zum Kaltgasspritzen
WO2007054313A1 (fr) 2005-11-10 2007-05-18 Linde Aktiengesellschaft Dispositif de chauffage de gaz a haute pression
WO2007110134A1 (fr) 2006-03-24 2007-10-04 Linde Aktiengesellschaft Pistolet de projection à gaz froid

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028095A (en) * 1934-05-14 1936-01-14 Tulcran Inc Air heating device
US2101922A (en) * 1935-02-19 1937-12-14 Stoesling Ludwig Spraying apparatus
US2267264A (en) * 1940-05-14 1941-12-23 James G Bland Air conduit heater
US2819378A (en) * 1956-03-26 1958-01-07 United Shoe Machinery Corp Heat blowers
US4065057A (en) * 1976-07-01 1977-12-27 Durmann George J Apparatus for spraying heat responsive materials
DE69016433T2 (de) 1990-05-19 1995-07-20 Papyrin Anatolij Nikiforovic Beschichtungsverfahren und -vorrichtung.
EP0924315A1 (fr) 1997-12-18 1999-06-23 Linde Aktiengesellschaft Production de gaz chaud pour la pulvérisation thermique
DE102005004117A1 (de) 2004-09-24 2006-04-06 Linde Ag Verfahren und Vorrichtung zum Kaltgasspritzen
WO2006034777A1 (fr) 2004-09-24 2006-04-06 Linde Aktiengesellschaft Procede et dispositif de pulverisation par gaz froid avec chauffage multiple du gaz
WO2007054313A1 (fr) 2005-11-10 2007-05-18 Linde Aktiengesellschaft Dispositif de chauffage de gaz a haute pression
WO2007110134A1 (fr) 2006-03-24 2007-10-04 Linde Aktiengesellschaft Pistolet de projection à gaz froid

Cited By (4)

* 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
CN112281151A (zh) * 2020-10-30 2021-01-29 遵义市欣茂汇机电有限公司 一种耐磨涂层低温超音速喷涂装置及方法

Also Published As

Publication number Publication date
DE102008026032A1 (de) 2009-12-03

Similar Documents

Publication Publication Date Title
EP1999297B1 (fr) Pistolet de projection a gaz froid
EP2298962B1 (fr) Pulverisation à froid de revêtements contenant des oxydes
DE102015117238A1 (de) Bearbeitungsmodul für eine Vorrichtung zur additiven Fertigung
EP2127759A1 (fr) Installation de pulvérisation à gaz froid et procédé de pulvérisation à gaz froid
DE1089614B (de) Verfahren und Vorrichtung zum Flammspritzen
DE2452684A1 (de) Vorrichtung und verfahren zum aufspruehen von zerstaeubten teilchen
CH647814A5 (de) Verfahren zum aufbringen eines hochtemperaturtauglichen materials auf ein substrat sowie plasmaerzeuger und -spritzvorrichtung zur durchfuehrung des verfahrens.
DE112004002500T5 (de) Kaltspritzvorrichtung mit Pulvervorheizeinrichtung
EP1785679A1 (fr) Appareil pour chauffer du gaz sous haute pression
WO2011088818A1 (fr) Dispositif et procédé pour la pulvérisation de poudre avec une vitesse de flux de gaz élevée
DE10319481A1 (de) Lavaldüse für das thermische Spritzen und das kinetische Spritzen
EP1854547A1 (fr) Pistolet de projection par gaz froid
DE102008019682A1 (de) Kaltgasspritzanlage
DE202021104848U1 (de) Laserspritzpistole, mit der eine Beschichtung mit ultrahoher Bindungsfestigkeit hergestellt werden kann
EP2312252A1 (fr) Caisson de refroidissement et procédé de refroidissement de gaz de synthèse
DE10253794A1 (de) Niedertemperatur Hochgeschwindigkeits-Flammspritzsystem
EP1506816B1 (fr) Buse de Laval pour la pulvérisation thermique et cinétique
DE102009009474B4 (de) Gasspritzanlage und Verfahren zum Gasspritzen
EP2816135B1 (fr) Procédé d'injection de poudre à plasma pour le revêtement de panneaux pour parois de chaudière en liaison avec un appareil à faisceau laser
EP3559301B1 (fr) Structure de buse pour la pulvérisation thermique au moyen d'une suspension ou d'une solution de précurseur
DE10119288B4 (de) Verfahren und Einrichtung zur gasdynamischen Beschichtung von Oberflächen mittels Schalldüsen
DE4216688C1 (de) Verfahren und Vorrichtung zum thermischen Spritzen von pulver- oder draht- oder stabförmigen Spritzzusatzwerkstoffen
EP2893982B1 (fr) Dispositif de laquage
EP1923478A1 (fr) Couche d'accrochage rugueuse
DE102004022358B3 (de) Hartstoffbeschichtungsverfahren und dessen Verwendung

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

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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

AKY No designation fees paid
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: 20100504

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566