DE1261789B - Plasma spray device - Google Patents
Plasma spray deviceInfo
- Publication number
- DE1261789B DE1261789B DEA43544A DEA0043544A DE1261789B DE 1261789 B DE1261789 B DE 1261789B DE A43544 A DEA43544 A DE A43544A DE A0043544 A DEA0043544 A DE A0043544A DE 1261789 B DE1261789 B DE 1261789B
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- spray device
- powder
- plasma spray
- feed line
- 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.)
- Pending
Links
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
- B05B7/22—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 electrically, magnetically or electromagnetically, e.g. by arc
- B05B7/222—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 electrically, magnetically or electromagnetically, e.g. by arc using an arc
- B05B7/226—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 electrically, magnetically or electromagnetically, e.g. by arc using an arc the material being originally a particulate material
-
- 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
- C23C4/134—Plasma spraying
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Nozzles (AREA)
- Plasma Technology (AREA)
- Coating By Spraying Or Casting (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. CL:Int. CL:
B44dB44d
Deutsche Kl.: 75 c-22/02 German class: 75 c -22/02
Nummer: 1261789Number: 1261789
Aktenzeichen: A 43544 VI b/75 cFile number: A 43544 VI b / 75 c
Anmeldetag: 10. Mi 1963 Filing date: Wed 10, 1963
Auslegetag: 22. Februar 1968Open date: February 22, 1968
Die Erfindung betrifft eine Plasmaspritzvorrichtung mit Pulverzuführungsleitung zum Auftragen pulverförmiger Stoffe, besonders für die Herstellung metallischer oder feuerfester Beschichtungen auf Teile aller Art mit Hilfe eines Gasstrahles, der bei sehr hohen Temperaturen durch einen Lichtbogen (Plasma) oder durch eine Gebläseflamme geführt und ionisiert wird. Man kennt bereits Apparaturen dieser Art, bei denen das aufzutragende Pulver in einem Hilfsträgergasstrom suspendiert, in den Plasmastrahl oder in die Flamme durch eine radiale, im Querschnitt kreisförmige Röhre eingeleitet wird, die in den Endteil des Halses der Düse, durch die besagter Strahl austritt, also vom Düsenanfang an aus abwärts, einmündet, (vgl. französische Patentschrift 1 260 262). Diese Methode der Pulverbeschickung in die Heißgas- oder Flammensäule erfordert, damit man eine gute Verteilung der Pulverteilchen im Inneren dieser Säule enthält, eine schwierige Regulierung der Pulverzufuhr. Außerdem erhitzt sich der Zuleitungsstutzen für das Pulver, der mit Hilfe eines Flansches mit dem in den Düsenhals einmündenden Radialrohr verbunden ist, beträchtlich.The invention relates to a plasma spray device with a powder feed line for applying powdery Substances, especially for the production of metallic or fire-retardant coatings on parts of all kinds with the help of a gas jet, which at very high temperatures by an electric arc (Plasma) or passed through a fan flame and ionized. Apparatus for this is already known Type in which the powder to be applied is suspended in an auxiliary carrier gas stream, in the plasma jet or introduced into the flame through a radial tube of circular cross-section which is inserted into the end part of the nozzle throat through which said jet emerges, i.e. downwards from the beginning of the nozzle, opens (see French patent specification 1,260,262). This method of powder loading in the column of hot gas or flame requires a good distribution of the powder particles inside This column contains difficult control of the powder feed. In addition, the feed pipe becomes hot for the powder, which with the help of a flange with the radial tube opening into the nozzle throat connected, considerably.
Die den Gegenstand der vorliegenden Erfindung darstellende Vorrichtung erlaubt es, diese Schwierigkeiten zu umgehen und eine bessere Verteilung des Pulvers über den Düsenquerschnitt zu erreichen.The device which is the subject of the present invention makes it possible to overcome these difficulties to bypass and to achieve a better distribution of the powder over the nozzle cross-section.
Gegenstand der Erfindung ist eine Plasmaspritzvorrichtung mit Pulverzuführungsleitung, die in die Düsenwand eintritt, die dadurch gekennzeichnet ist, daß die Mündung der Pulverzuführungsleitung in den Düsenkanal (3) schlitzförmig ist, wobei die Länge des Schlitzes quer zur Düsenachse etwa dem Düsendurchmesser entspricht und die Breite nur ein Bruchteil der Länge beträgt.The invention relates to a plasma spray device with a powder supply line which is inserted into the Nozzle wall enters, which is characterized in that the mouth of the powder feed line in the The nozzle channel (3) is slot-shaped, the length of the slot transverse to the nozzle axis being approximately the nozzle diameter and the width is only a fraction of the length.
Dieser Kanal kann insbesondere durch einen einfachen Einschnitt oder eine Fräsung in der Düse senkrecht zu ihrer Achse gebildet werden.This channel can in particular by a simple incision or a milling in the nozzle be formed perpendicular to its axis.
An Hand des in der Zeichnung dargestellten Beispiels wird nachstehend eine Ausführungsform der Erfindung beschrieben.Using the example shown in the drawing, an embodiment of the Invention described.
F i g. 1 stellt schematisch ein perspektivisches Bild des Endes der Austragsdüse dar;F i g. Figure 1 shows schematically a perspective image of the end of the discharge nozzle;
F i g. 2 ist eine perspektivische Darstellung der Pulverbeschickungsvorrichtung;F i g. Fig. 2 is a perspective view of the powder feeder;
F i g. 3 zeigt einen axialen Schnitt durch das Ende einer Plasma-Auftragapparatur mit einer Vorrichtung gemäß der Erfindung.F i g. 3 shows an axial section through the end of a plasma application apparatus with a device according to the invention.
Wie in F i g. 1 dargestellt, weist die Düse 1 in ihrem Endteil eine querverlaufende Durchbrechung 2 auf, die von einem Endschnitt, einer Fräsung oder einem einfachen Sägeschnitt senkrecht zur Düsen-Plasmaspritzvorrichtung As in Fig. 1, the nozzle 1 has a transverse opening 2 in its end part from an end cut, a milling or a simple saw cut perpendicular to the nozzle plasma spray device
Anmelder:Applicant:
L'Air Liquide, Societe Anonyme pour l'Etude
et !'Exploitation des Precedes Georges Claude,
ParisL'Air Liquide, Societe Anonyme pour l'Etude
et! 'exploitation of Precedes Georges Claude,
Paris
ίο Vertreter:ίο representative:
Dr. H.-H. Willrath, Patentanwalt,
6200 Wiesbaden, Hildastr. 18Dr. H.-H. Willrath, patent attorney,
6200 Wiesbaden, Hildastr. 18th
Als Erfinder benannt:Named as inventor:
Gerard Mondain-Monval,
Guy Audric, ParisGerard Mondain-Monval,
Guy Audric, Paris
Beanspruchte Priorität:Claimed priority:
Frankreich vom 27. Juli 1962 (905 359)France of July 27, 1962 (905 359)
achse gebildet wird und sich bis nahe zur waagerechten Querschnittsebene der Düse erstreckt, derart, daß sie in deren Kanal 3 durch eine Öffnung mit einem Umfangswinkel von etwa 180° einmündet. Der Stutzen4 (Fig. 2) für die Zufuhr des Trägergas-Stromes mit einer Suspension des Beschichtungspulvers ist mit der Öffnung 2 mittels eines Ringes 5 mit relativ geringer Wärmeleitfähigkeit verbunden, z. B. mit einem Ring aus rostfreiem Stahl, der auf das Endel der Düse aufgeschrumpft ist oder mit Hilfe einer Klemmschraube 6 befestigt sein kann.axis is formed and extends to close to the horizontal cross-sectional plane of the nozzle, in such a way, that it opens into the channel 3 through an opening with a circumferential angle of about 180 °. Of the Nozzle 4 (Fig. 2) for the supply of the carrier gas stream with a suspension of the coating powder is connected to the opening 2 by means of a ring 5 relatively low thermal conductivity associated, e.g. B. with a stainless steel ring that attaches to the The end of the nozzle is shrunk on or can be fastened with the aid of a clamping screw 6.
In F i g. 3 ist der Ring 5 am äußeren Ende 1 der Düse eines Plasmarohres dargestellt. Die Pulverröhre 4 mündet in den Ring 5 gegenüber der Düsenfräsung 2, die sich senkrecht zur Düsenachse in den Zentralkanal 3 der Düse erstreckt.In Fig. 3 shows the ring 5 at the outer end 1 of the nozzle of a plasma tube. The powder tube 4 opens into the ring 5 opposite the nozzle milling 2, which is perpendicular to the nozzle axis in the Central channel 3 of the nozzle extends.
Die Düse besitzt eine äußere Schulter 7, die den Ring S mit der Beschickungsröhre 4 fest an der Fräsung
2 der Düse anliegen läßt.
In bekannter Weise setzt sich die Düse im Inneren des Kopfes als eine Trennwand 8 fort, die die in der
Mitte befindliche Elektrode 9 umschließt und die Innenwand eines Hohlraumes 10 bildet, in dem das
Wasser zur Kühlung der Düse zirkuliert. Die äußere Wand dieses Hohlraumes wird durch den Körper 11
des Kopfes gebildet, auf dem die Düse durch eine Kapselmutter 12 unter Zwischenschaltung einer
Dichtung 13 befestigt ist.The nozzle has an outer shoulder 7 which allows the ring S with the feed tube 4 to rest firmly against the milling 2 of the nozzle.
In a known manner, the nozzle continues inside the head as a partition wall 8 which encloses the electrode 9 located in the center and forms the inner wall of a cavity 10 in which the water circulates to cool the nozzle. The outer wall of this cavity is formed by the body 11 of the head on which the nozzle is fastened by a cap nut 12 with the interposition of a seal 13.
809 509/283809 509/283
Claims (2)
Französische Patentschrift Nr. 1 260 262.Considered publications:
French Patent No. 1,260,262.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR905359A FR1336870A (en) | 1962-07-27 | 1962-07-27 | Apparatus for projecting powdery materials by means of a concentrated electric arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1261789B true DE1261789B (en) | 1968-02-22 |
Family
ID=8784113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA43544A Pending DE1261789B (en) | 1962-07-27 | 1963-07-10 | Plasma spray device |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3235700A (en) |
| BE (1) | BE634714A (en) |
| DE (1) | DE1261789B (en) |
| ES (1) | ES289618A1 (en) |
| FR (1) | FR1336870A (en) |
| GB (1) | GB969746A (en) |
| LU (1) | LU44018A1 (en) |
| NL (1) | NL295849A (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7557324B2 (en) * | 2002-09-18 | 2009-07-07 | Volvo Aero Corporation | Backstream-preventing thermal spraying device |
| SE525927C2 (en) * | 2002-09-18 | 2005-05-31 | Volvo Aero Corp | Thermal sprayer used in aero space constructions, has frame element projecting in flame injection direction from end piece, and partly surrounding flame zone extending from end piece |
| EP2150971B1 (en) | 2007-05-11 | 2018-11-28 | Umicore AG & Co. KG | Method and apparatus for making uniform and ultrasmall nanoparticles |
| US8507401B1 (en) | 2007-10-15 | 2013-08-13 | SDCmaterials, Inc. | Method and system for forming plug and play metal catalysts |
| US8803025B2 (en) * | 2009-12-15 | 2014-08-12 | SDCmaterials, Inc. | Non-plugging D.C. plasma gun |
| US9126191B2 (en) * | 2009-12-15 | 2015-09-08 | SDCmaterials, Inc. | Advanced catalysts for automotive applications |
| US9039916B1 (en) | 2009-12-15 | 2015-05-26 | SDCmaterials, Inc. | In situ oxide removal, dispersal and drying for copper copper-oxide |
| US8652992B2 (en) | 2009-12-15 | 2014-02-18 | SDCmaterials, Inc. | Pinning and affixing nano-active material |
| US9149797B2 (en) * | 2009-12-15 | 2015-10-06 | SDCmaterials, Inc. | Catalyst production method and system |
| US20110143930A1 (en) * | 2009-12-15 | 2011-06-16 | SDCmaterials, Inc. | Tunable size of nano-active material on nano-support |
| US8669202B2 (en) | 2011-02-23 | 2014-03-11 | SDCmaterials, Inc. | Wet chemical and plasma methods of forming stable PtPd catalysts |
| AU2012299065B2 (en) | 2011-08-19 | 2015-06-04 | SDCmaterials, Inc. | Coated substrates for use in catalysis and catalytic converters and methods of coating substrates with washcoat compositions |
| US9511352B2 (en) | 2012-11-21 | 2016-12-06 | SDCmaterials, Inc. | Three-way catalytic converter using nanoparticles |
| US9156025B2 (en) | 2012-11-21 | 2015-10-13 | SDCmaterials, Inc. | Three-way catalytic converter using nanoparticles |
| WO2015013545A1 (en) | 2013-07-25 | 2015-01-29 | SDCmaterials, Inc. | Washcoats and coated substrates for catalytic converters |
| MX2016004991A (en) | 2013-10-22 | 2016-08-01 | Sdcmaterials Inc | Catalyst design for heavy-duty diesel combustion engines. |
| US9517448B2 (en) | 2013-10-22 | 2016-12-13 | SDCmaterials, Inc. | Compositions of lean NOx trap (LNT) systems and methods of making and using same |
| WO2015143225A1 (en) | 2014-03-21 | 2015-09-24 | SDCmaterials, Inc. | Compositions for passive nox adsorption (pna) systems |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1260262A (en) * | 1959-08-21 | 1961-05-05 | Metallizing Engineering Co Inc | Apparatus such as a sprayer and method for spraying powdered material with the aid of a flame constituted by a plasma |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3010009A (en) * | 1958-09-29 | 1961-11-21 | Plasmadyne Corp | Method and apparatus for uniting materials in a controlled medium |
-
0
- BE BE634714D patent/BE634714A/xx unknown
- NL NL295849D patent/NL295849A/xx unknown
-
1962
- 1962-07-27 FR FR905359A patent/FR1336870A/en not_active Expired
-
1963
- 1963-07-01 US US291851A patent/US3235700A/en not_active Expired - Lifetime
- 1963-07-04 ES ES289618A patent/ES289618A1/en not_active Expired
- 1963-07-06 LU LU44018D patent/LU44018A1/xx unknown
- 1963-07-09 GB GB27190/63A patent/GB969746A/en not_active Expired
- 1963-07-10 DE DEA43544A patent/DE1261789B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1260262A (en) * | 1959-08-21 | 1961-05-05 | Metallizing Engineering Co Inc | Apparatus such as a sprayer and method for spraying powdered material with the aid of a flame constituted by a plasma |
Also Published As
| Publication number | Publication date |
|---|---|
| ES289618A1 (en) | 1963-11-01 |
| US3235700A (en) | 1966-02-15 |
| NL295849A (en) | 1900-01-01 |
| FR1336870A (en) | 1963-09-06 |
| GB969746A (en) | 1964-09-16 |
| LU44018A1 (en) | 1963-09-06 |
| BE634714A (en) | 1900-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1261789B (en) | Plasma spray device | |
| DE2164270C3 (en) | Plasma jet generator | |
| DE1244627B (en) | Plasma spray device | |
| DE2533189A1 (en) | DENTAL HANDPIECE | |
| DE2701671A1 (en) | DEVICE FOR PLASMA SPRAYING | |
| DE1256816B (en) | Arc plasma torch | |
| DE1246478B (en) | Device for electrostatic spray painting | |
| DE1233546B (en) | Ladle for pouring in a vacuum | |
| DE2813804A1 (en) | PLASMA ARC WELDING AND CUTTING DEVICE | |
| DE3019966A1 (en) | TORCH FOR PROTECTIVE GAS WELDING | |
| DE1077806B (en) | Arc torch with exchangeable, cooled nozzle | |
| DE2154585A1 (en) | UNDERWATER ROCKET | |
| DE560553C (en) | Vacuum vessel with several ring-shaped electrode feed-throughs | |
| DE1047963B (en) | Arc shielding gas welding torch with pressure adjustment of the non-melting electrode | |
| DE1261969B (en) | Device for centering and longitudinal alignment of the electrode in a plasma torch | |
| AT259710B (en) | Nitrogen plasmotron | |
| DE1615153A1 (en) | Inert gas welding torch | |
| DE2141459C3 (en) | Cutting nozzle with oxygen curtain | |
| DE623984C (en) | Hand-operated gas-electric burner | |
| DE323714C (en) | Cutting torch | |
| DD238206A1 (en) | DEVICE FOR PROTECTING GAS IN BOLT ARC WELDING | |
| DE2336050C3 (en) | Microwave plasma torch for emission spectral analysis | |
| DE1262473B (en) | Plasma torch | |
| DE1615365A1 (en) | Electric welding torch | |
| DE1615467C (en) | Inert gas arc torch |