EP0271032A2 - Procédé d'application d'une couche à l'intérieur de tubes ou de corps creux de sections étroites et torche à pulvérisation par plasma - Google Patents

Procédé d'application d'une couche à l'intérieur de tubes ou de corps creux de sections étroites et torche à pulvérisation par plasma Download PDF

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Publication number
EP0271032A2
EP0271032A2 EP87118000A EP87118000A EP0271032A2 EP 0271032 A2 EP0271032 A2 EP 0271032A2 EP 87118000 A EP87118000 A EP 87118000A EP 87118000 A EP87118000 A EP 87118000A EP 0271032 A2 EP0271032 A2 EP 0271032A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
tube
electrode
spray gun
channel
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Withdrawn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
EP87118000A
Other languages
German (de)
English (en)
Other versions
EP0271032A3 (en
Inventor
Niklaus Ing. Müller
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.)
ECG Immobilier SA
Original Assignee
Castolin SA
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 Castolin SA filed Critical Castolin SA
Publication of EP0271032A2 publication Critical patent/EP0271032A2/fr
Publication of EP0271032A3 publication Critical patent/EP0271032A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H05H1/34—Details, e.g. electrodes, nozzles
    • 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
    • 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
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes
    • 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
    • H05H1/28—Cooling arrangements
    • 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
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3436—Hollow cathodes with internal coolant flow
    • 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
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3463—Oblique nozzles
    • 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 or liquid

Definitions

  • the invention relates to a plasma spray burner with an electrode forming a nozzle channel, in particular anodically connected spray nozzle, and a second electrode associated therewith in a burner part of a burner arm which is electrically insulated from the spray nozzle and which has fault channels for working gas and for cooling medium which is in one of the flow channels flows towards the nozzle and, after the cooling process has taken place, is derived from another flow channel, a feed line for powder opening into the nozzle channel.
  • the invention also relates to a method for coating the inside of a pipe.
  • a device of this type has been proposed by DE-OS 34 30 383 for the production of inner layers in holding grooves of gymnastic discs.
  • This known device has a burner head with hinged anode and cathode half-shells; in the latter there is an electrode which projects into the nozzle channel of a spray nozzle in the anodic part of the burner head.
  • the direction of spraying is perpendicular to the burner head axis, the powder is fed very close to the electrode directly at the mouth of the nozzle channel.
  • nozzle openings are provided on a nozzle ring, which surrounds the burner head at a distance from the nozzle channel in a support-like manner; Through these openings, a protective gas jacket is created for cooling, which should also blow out spray dust.
  • the previous invention is generally limited to a rotationally symmetrical design of the electrode head, which protrudes into a cross-sectionally specially designed burner nozzle.
  • the inventor has set the goal of providing a plasma spray burner of the type mentioned at the outset for coating very narrow pipes or the like.
  • a plasma spray burner of the type mentioned at the outset for coating very narrow pipes or the like.
  • the structure of the plasma spray gun is to be given a completely different concept, which also simplifies access to the individual parts.
  • the flow channel for the working gas connects to a channel passing through the second electrode and the nozzle channel is inclined at an angle at least in the region of its mouth to the longitudinal axis of the burner arm or the flow channel.
  • this region of the nozzle channel which is inclined to the longitudinal axis should run approximately at right angles to an outer surface of the spray nozzle which in turn is inclined, the angle of inclination between the nozzle channel and the longitudinal axis preferably being approximately 45 °.
  • the passage of the working gas through the electrode simplifies the burner structure and allows the spray nozzle to be designed inexpensively.
  • a bore of a heat sink is connected between the flow channel for the working gas and the channel of the second electrode and is surrounded by a cooling jacket space integrated into the burner according to the invention - as a flow space for the cooling medium.
  • This cooling medium here is advantageously cooling liquid which can be brought up to the spray nozzle, so that the cooling is very effective in any case.
  • An outer gas protection jacket is omitted, the flow of which can negatively influence the plasma layer that forms.
  • the requirement is of particular importance to accommodate the flow channel for the working gas in a central tube of the torch arm, along which the coolant flows directly along to the electrode ; the central tube delimits the inner cooling jacket space with a coaxial tube made of electrically non-conductive material.
  • This central tube is directly connected to the second electrode described above and also serves as a power supply for this.
  • the coaxial tube is preferably surrounded at a distance by a jacket tube and forms with it a second cooling jacket chamber which is connected to the first-mentioned inner cooling jacket chamber in the region of the spray nozzle; the inner cooling jacket space leads the liquid cooling medium in the cold state to the spray nozzle, where it is deflected around the free edge of the coaxial tube and discharged through the outer cooling jacket space. It has proven to be advantageous to manufacture the coaxial tube from acrylic glass, which is supported against the spacer of the central tube, without the axial mobility of the central tube or the like relative to the acrylic tube. would be affected.
  • Said jacket tube forms the outer surface of the burner arm, moreover, in a preferred embodiment, also the supply of the current to the anodic - or to the cathodic - spray nozzle, which closes the jacket tube towards the front.
  • the plasma spray burner according to the invention thus has three concentric cavities, namely the flow channel for the working gas falling into the longitudinal axis of the burner arm and the two coolant jackets surrounding it.
  • the already mentioned heat sink sits at the end of the central tube, which projects with radially projecting cooling fins into the inner coolant jacket and thereby offers it a relatively large surface area for heat exchange.
  • this copper heat sink protrudes from the cathode, which is made of the same material and has a streamlined tip made of a material with a high melting point and a lower electrical conductivity than the cathode body. Tungsten with a melting point of 3390 ° C and a conductivity reduced by around two thirds compared to copper is ideal for this.
  • the cathode protrudes into a cavity of the spray nozzle upstream of the nozzle channel and in such a way that - according to the invention inclined in the direction of flow - transverse bores as end pieces of the flow channel for the working gas open laterally on the cathode.
  • the working gas thus - directed - enters an annular space between the cathode and the anode and flows at the cathode tip described within a conically tapering part of the spray nozzle to the front into the subsequent nozzle duct, where the arc common in such devices is in the operating position of the plasma spray gun .
  • Its tip is at a sufficient distance from the powder feed provided near the nozzle channel opening that sufficient melting is ensured even for high-melting metal particles; the zone of maximum effectiveness of the arc is a short distance before its end.
  • the central tube is mounted so that it can move axially, so that the position of the arc can be carried out by simply moving the central tube with its cathode tip without any problems.
  • the interior of a cylindrical part adjoins a conically widening cavity of the spray nozzle, which has an insulating ring - preferably made of aluminum oxide or the like. non-porous ceramic - fits tightly. This ceramic cylinder surrounds part of the heat sink and rests with it preferably axially displaceably in the cylindrical part of the spray nozzle.
  • the cooling is highly effective because the heat sink is equipped with cooling fins on the outside, which protrude radially into the inner cooling jacket space.
  • the spray nozzle closing the jacket tube at the end offers two outer surfaces which preferably enclose an angle of 90 °, one of which is connected to the nozzle channel by at least one bore and this bore is connected to an outer feed tube as a feed line for powder , which runs approximately parallel to the casing tube.
  • its jacket tube is designed as a power supply for the spray nozzle, for example made of brass.
  • an electrically conductive material can also be provided on the feed pipe and connected to the spray nozzle, which is then insulated from the burner arm.
  • the formation of the housing-like support from which the burner arm projects is also important; an end piece or the like connected to the central tube. is made of electrically conductive material or the like with the interposition of an electrically insulating intermediate ring. firmly connected to a front support part made of electrically conductive material, the front support part preferably enclosing the central tube at a distance and being firmly connected to the jacket tube.
  • a bush-like receptacle made of electrically insulating material with a collar connected to the coaxial tube made of non-conductive material is stored in the front support part.
  • This receiving body surrounds the central tube in such a way that it forms part of the inner cooling jacket space with the central tube and radially delimits the inner cooling jacket space in the region of the end piece with a base part adjacent to the central tube.
  • the inner cooling jacket space in the end piece and the outer cooling jacket space in the front support part are each with a known hose connection or the like. connected, each of which also serves to connect electricity; the end piece is connected via its hose connection to the negative pole of a power line when the electrode of the central tube is cathodic.
  • the mobility of the central tube with the cathode is made possible by the fact that the central tube protrudes from the end piece through an end conically widening end recess and the end recess receives a conically tapering counterpart, which is a central approach of an end plate connected to the end piece, the grip nuts are assigned to an external thread of the central tube.
  • a method for coating a tube internally by plasma spraying in which the tube having an inner diameter of less than 30 mm is pushed onto the burner arm, after which the plasma spray gun ignites and during the plasma spraying the tube, which in turn is cooled, is turned and rotated is moved axially relative to the burner arm.
  • the corrosion-resistant inner layer applied in this way for example in an aluminum tube that is used as a battery jacket - is very simple and is completely flawless.
  • a spray burner 10 for plasma for producing a corrosion-resistant inner layer 12 of an approximately 220 mm long light metal tube indicated at 13, the inner diameter d of which measures approximately 30 mm, has a connection housing or support 14 - made of hard tissue - of example length a of 75 mm a rod-shaped burner arm 16 with an outer diameter i of approximately 20 mm and a cantilever length b of 480 mm, measured from a housing end face 15.
  • a connecting pipe 18 running in the longitudinal axis A of the plasma spray gun 10 protrudes from a face plate 20 which forms the other face of the housing and has a free length e of approximately 60 mm.
  • connection housing 14 consists of two parts made of brass or the like which are separated by an intermediate ring 22 made of electrically insulating material such as acetal resin and are firmly connected thereto by screws.
  • Metal namely a block-like end piece 23 and a bushing 24 which receives one end of the burner arm 16, the base plate 25 of which is provided with a central opening 26 with a diameter f of approximately 13.5 mm and is inserted into the intermediate ring 22 O-ring 28 that lies tightly - such an O-ring 28 is also found on the surface of the intermediate ring 22 adjacent to the end piece 23.
  • a breakthrough 26 penetrating hollow receiving body 30 made of polytetrafluoroethylene (PTFE) or the like, optionally containing fillers. introduced, which has a cross-sectionally L-shaped collar 31 within the bushing 24 and engages through the intermediate ring 22 into a blind bore 33 of the end piece 23; A bottom ring 32 of the receiving body 30 runs in this blind bore 33 at a distance from the bottom thereof, which appears as a shoulder-like annular surface 35 as a result of a central axial bore 34.
  • the axial bore 34 is relatively short and merges into an end recess that widens conically from it.
  • the latter - like the O-ring 28 on the intermediate ring 22 - is required to seal the blind bore 33, which can be connected via a transverse bore 40 of the end piece 23 to a water system (not shown for reasons of clarity) and with the central tube 38 annular water space limited. This is connected via a recess 41 to the interior of that receiving body 30, which in turn forms a space 42 for a water jacket with the central tube 38.
  • the space 42 for the water jacket continues beyond the receiving body 30; the central tube 38 is surrounded at a distance by a coaxial - preferably translucent - plastic tube 44, which is screwed at 45 to the receiving body 30 and a spacer ring 46 with axially parallel recesses 47 containing - spacer ring 46 of the central tube.
  • a second concentric water space 43 is located outside the plastic tube 44 and is delimited on the outside by a jacket tube 48 made of brass as the outer part of the burner arm 16, which sits sealed in the bushing 24 at the end.
  • This outer water space 43 is connected on the one hand to the front edge 49 of the plastic tube 44 in terms of fluid flow to the inner water space 42 and on the other hand within the collar 31 of the receiving body 30 in turn connected to a transverse bore 40 a , which is radially opposite the first described transverse bore 40; both transverse bores 40, 40 a are connected to outer hose connections 50, 50 a , one of which can be seen protruding laterally from the end piece 23 and the other from the bush 24.
  • the central tube 38 ends at a distance q from the free end of the device 10, which is formed by a ridgeline-shaped outer surfaces 51, 51 a of a spray nozzle 52, as a thin-walled end piece offset at 53 shoulder-like.
  • An open tube end 54 of a copper cooling body 56 which has radially projecting cooling fins 57, is soldered into this; an axial bore 55 of the heat sink 56 continues the interior 39 of the central tube 38 and, according to FIG. 3, passes into an axial channel 59 with three transverse bores 59 a inclined to the longitudinal axis A of a cathode 60, which axially continues the heat sink 56 and its end face 58 covered with a collar 61.
  • a dome-shaped cathode tip 62 made of tungsten is used.
  • a cylinder 66 made of oxide ceramic, preferably made of Al203, extends to the outside with the interposition of a Seal 28 a hugs a cylindrical slide part 68 of an anode, which is formed by the spray nozzle 52; the latter consists of the slide-on part 68 and a head part 69, which is screwed into the jacket tube 48 with a shoulder-like recess 70 and which on both sides of the longitudinal axis A offers the already mentioned outer surfaces 51, 51 a , which together form an angle w of 90 °.
  • radial grooves 67, 67 a can be seen.
  • the anodic spray nozzle 52 has a conical cavity 71 receiving the cathode 60, to which a nozzle channel 72 connects. According to FIG. 3, this is curved in a longitudinal section in order to open at one outer surface 51, ie the axis M of its mouth part 72 a extends at an angle t of 45 ° to the longitudinal axis A - and thus also in the operating position shown in FIG. 1 in an angle of 45 ° to the inner surface of the light metal tube 12 to be coated.
  • an oblique bore 74 of the spray nozzle 52 ends there.
  • This oblique bore 74 connects at the other end to a block-like attachment 76 resting in a groove-like recess 75 of the outer surface 51 a , which runs parallel to the nozzle comb 77 and is part of a feed pipe 78 for powder is.
  • This feed pipe 78 runs with its connecting end 79 on the outer surface of the casing pipe 48.
  • the central tube 38 protrudes with its end remote from the spray nozzle 52 from the connection housing 14 or from its end piece 23 and penetrates according to FIG. 1 the disk 20, which is inserted into the end recess 36 with a conical extension 21.
  • the disc 20 with its conical extension 21 is screwed onto an external thread 37 of the central tube 38.
  • This external thread 37 also receives two grip nuts 80.
  • the described external thread 37 of the central tube 38 is followed - in FIG. 1 on the right - by the connecting end 18 of the central tube 38, which is connected to a line (not shown) for a working gas in order to make it ready for operation;
  • a line not shown
  • this gas mixture flows in the flow direction x into the cavity 71 of the spray nozzle 52 and surrounds an arc there, which is only indicated at B in FIG. 3 and in front of the oblique bore 74 for the powder feed ends.
  • Arc B arises between anode 52 and cathode 60; the latter is connected via the metallic central tube 38 and the end piece 23 of the handle housing 14 to a minus pole designated in FIG. 1 with P n , the anode via the jacket tube 48 and the bushing 24 to a positive pole P p .
  • the arc can be changed by axially shifting the cathode 60; the length n of the slide-on part 68 of the anode 52 determines the extent of that axial displacement, since it allows the position of the cathode 60 to be changed in this respect by means of the central tube 38.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Plasma Technology (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Nozzles (AREA)
EP87118000A 1986-12-11 1987-12-05 Method for depositing an inner coating in tubes or similar hollow spaces with a small diameter, and plasma spray gun therefor Withdrawn EP0271032A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3642375 1986-11-12
DE19863642375 DE3642375A1 (de) 1986-12-11 1986-12-11 Verfahren zur aufbringung einer innenbeschichtung in rohre od. dgl. hohlraeume engen querschnittes sowie plasmaspritzbrenner dafuer

Publications (2)

Publication Number Publication Date
EP0271032A2 true EP0271032A2 (fr) 1988-06-15
EP0271032A3 EP0271032A3 (en) 1990-01-10

Family

ID=6315995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118000A Withdrawn EP0271032A3 (en) 1986-12-11 1987-12-05 Method for depositing an inner coating in tubes or similar hollow spaces with a small diameter, and plasma spray gun therefor

Country Status (6)

Country Link
US (2) US4877937A (fr)
EP (1) EP0271032A3 (fr)
JP (1) JPS63229164A (fr)
BR (1) BR8706831A (fr)
CA (1) CA1277876C (fr)
DE (1) DE3642375A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362693A1 (fr) * 1988-09-30 1990-04-11 The Perkin-Elmer Corporation Extension de pistolet à plasma pour revêtir des fentes
WO1990010366A1 (fr) * 1989-03-03 1990-09-07 Tetronics Research & Development Company Limited Torche a arc de plasma
WO1990008203A3 (fr) * 1989-01-14 1990-11-01 Ford Motor Canada Depot de metal sur une surface
US5014916A (en) * 1990-04-25 1991-05-14 The Perkin-Elmer Corporation Angular gas cap for thermal spray gun
FR2672459A1 (fr) * 1991-02-01 1992-08-07 Girard Frederic Dispositif de rechargement par plasma a orifice oblique.
EP0571374A4 (fr) * 1990-01-17 1993-03-05 Univ Sydney Cathode a refroidissement par gaz destinee a un chalumeau a arc.
US5195675A (en) * 1990-03-27 1993-03-23 Verolme Machinefabriek Ijsselmonde B.V. Method for producing a composite pipe
EP0766502A1 (fr) * 1995-09-28 1997-04-02 Sulzer Metco (Irvine) Inc. Canon à plasma à cathode unique avec alimentation des poudres suivant l'axe central de la buse de sortie
JP2006218476A (ja) * 2005-02-11 2006-08-24 Sulzer Metco Ag 溶射装置
CN104704926A (zh) * 2012-08-06 2015-06-10 海别得公司 用于等离子体弧炬的不对称消耗件
CN109332775A (zh) * 2018-11-27 2019-02-15 株洲钻石切削刀具股份有限公司 一种内冷三面刃铣刀

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462266B (sv) * 1987-07-16 1990-05-28 Spt Plasmatek Ab Plasmabraennare med anordningar foer centrering och fasthaallning av elektroden
DE3840485A1 (de) * 1988-12-01 1990-06-07 Mannesmann Ag Fluessigkeitsgekuehlter plasmabrenner mit uebertragenem lichtbogen
FR2674161B1 (fr) * 1991-03-22 1993-06-11 Soudure Autogene Francaise Pistolet de decoupage de tole.
US5233153A (en) * 1992-01-10 1993-08-03 Edo Corporation Method of plasma spraying of polymer compositions onto a target surface
DE4228064A1 (de) * 1992-08-24 1994-03-03 Plasma Technik Ag Plasmaspritzgerät
DE9215133U1 (de) * 1992-11-06 1993-01-28 Plasma-Technik Ag, Wohlen Plasmaspritzgerät
DE4240991A1 (de) * 1992-12-05 1994-06-09 Plasma Technik Ag Plasmaspritzgerät
EP0645946B1 (fr) * 1993-09-29 1996-12-18 Sulzer Metco AG Tête de brûleur pour pulvérisateurs par plasma
US5466906A (en) * 1994-04-08 1995-11-14 Ford Motor Company Process for coating automotive engine cylinders
US6131533A (en) * 1996-08-15 2000-10-17 Citizen Watch Co., Ltd. Jig for forming hard carbon film over inner surface of guide bush using the jig
DE19716235C2 (de) * 1997-04-18 2001-11-29 Deutsch Zentr Luft & Raumfahrt Plasmabrenner mit einer fluidgekühlten Anode
DE19716236C2 (de) * 1997-04-18 2002-03-07 Deutsch Zentr Luft & Raumfahrt Plasmabrennervorrichtung
DE19842074B4 (de) * 1998-09-15 2004-06-03 Castolin S.A. Anode für Plasmaauftragsbrenner
CA2303732C (fr) * 1999-04-09 2010-05-25 Daido Tokushuko Kabushiki Kaisha Tube metallique multi-couche anti-cokefiant ignifuge et la methode pour le fabriquer
DE29911974U1 (de) * 1999-07-09 2000-11-23 Agrodyn Hochspannungstechnik GmbH, 33803 Steinhagen Plasmadüse
US6114649A (en) * 1999-07-13 2000-09-05 Duran Technologies Inc. Anode electrode for plasmatron structure
CN100418674C (zh) * 2000-02-10 2008-09-17 特乔尼科斯有限公司 用于制造细粉末的等离子体电弧反应器
GB2359096B (en) * 2000-02-10 2004-07-21 Tetronics Ltd Apparatus and process for the production of fine powders
GB0004845D0 (en) 2000-02-29 2000-04-19 Tetronics Ltd A method and apparatus for packaging ultra fine powders into containers
RU2267239C2 (ru) 2000-04-10 2005-12-27 Тетроникс Лимитед Устройство сдвоенной плазменной горелки
GB2364875A (en) * 2000-07-10 2002-02-06 Tetronics Ltd A plasma torch electrode
US6362450B1 (en) 2001-01-30 2002-03-26 The Esab Group, Inc. Gas flow for plasma arc torch
JP3543149B2 (ja) 2001-09-03 2004-07-14 島津工業有限会社 プラズマ溶射用のトーチヘッド
US6986471B1 (en) * 2002-01-08 2006-01-17 Flame Spray Industries, Inc. Rotary plasma spray method and apparatus for applying a coating utilizing particle kinetics
DE50307658D1 (de) * 2002-04-29 2007-08-23 Fh Hildesheim Holzminden Goe Verfahren und vorrichtung zur behandlung der äusseren oberfläche eines metalldrahts, insbesondere als beschichtungsvorbehandlung
US7112350B1 (en) 2003-07-14 2006-09-26 Duct Seal Systems, Inc. Method for applying liner to air duct
US20050035085A1 (en) * 2003-08-13 2005-02-17 Stowell William Randolph Apparatus and method for reducing metal oxides on superalloy articles
US6969819B1 (en) * 2004-05-18 2005-11-29 The Esab Group, Inc. Plasma arc torch
SE529053C2 (sv) 2005-07-08 2007-04-17 Plasma Surgical Invest Ltd Plasmaalstrande anordning, plasmakirurgisk anordning och användning av en plasmakirurgisk anordning
SE529056C2 (sv) 2005-07-08 2007-04-17 Plasma Surgical Invest Ltd Plasmaalstrande anordning, plasmakirurgisk anordning och användning av en plasmakirurgisk anordning
SE529058C2 (sv) 2005-07-08 2007-04-17 Plasma Surgical Invest Ltd Plasmaalstrande anordning, plasmakirurgisk anordning, användning av en plasmakirurgisk anordning och förfarande för att bilda ett plasma
US7959093B2 (en) * 2006-02-07 2011-06-14 Honeywell International Inc. Apparatus for applying cold-spray to small diameter bores
DE102006012100B3 (de) * 2006-03-16 2007-09-20 Maschinenfabrik Reinhausen Gmbh Vorrichtung zur Erzeugung eines Plasma-Jets
US7547861B2 (en) * 2006-06-09 2009-06-16 Morten Jorgensen Vortex generator for plasma treatment
US20070284342A1 (en) * 2006-06-09 2007-12-13 Morten Jorgensen Plasma treatment method and apparatus
US7928338B2 (en) 2007-02-02 2011-04-19 Plasma Surgical Investments Ltd. Plasma spraying device and method
US8529992B2 (en) * 2007-03-23 2013-09-10 Duct Seal Technologies, Llc Method and apparatus for coating ducts
JP5275342B2 (ja) 2007-05-11 2013-08-28 エスディーシー マテリアルズ インコーポレイテッド 粒子生産システム及び粒子生産方法
US8735766B2 (en) 2007-08-06 2014-05-27 Plasma Surgical Investments Limited Cathode assembly and method for pulsed plasma generation
US7589473B2 (en) 2007-08-06 2009-09-15 Plasma Surgical Investments, Ltd. Pulsed plasma device and method for generating pulsed plasma
US8507401B1 (en) 2007-10-15 2013-08-13 SDCmaterials, Inc. Method and system for forming plug and play metal catalysts
JP5320992B2 (ja) * 2008-11-11 2013-10-23 新日鐵住金株式会社 高耐性バーナーチップ
US9149797B2 (en) 2009-12-15 2015-10-06 SDCmaterials, Inc. Catalyst production method and system
US9126191B2 (en) 2009-12-15 2015-09-08 SDCmaterials, Inc. Advanced catalysts for automotive applications
US9119309B1 (en) 2009-12-15 2015-08-25 SDCmaterials, Inc. In situ oxide removal, dispersal and drying
US8652992B2 (en) 2009-12-15 2014-02-18 SDCmaterials, Inc. Pinning and affixing nano-active material
US8803025B2 (en) * 2009-12-15 2014-08-12 SDCmaterials, Inc. Non-plugging D.C. plasma gun
US8613742B2 (en) 2010-01-29 2013-12-24 Plasma Surgical Investments Limited Methods of sealing vessels using plasma
US9089319B2 (en) 2010-07-22 2015-07-28 Plasma Surgical Investments Limited Volumetrically oscillating plasma flows
GB2483265B (en) * 2010-09-01 2018-03-28 Pillarhouse Int Ltd Soldering nozzle
US8669202B2 (en) 2011-02-23 2014-03-11 SDCmaterials, Inc. Wet chemical and plasma methods of forming stable PtPd catalysts
HK1199222A1 (en) 2011-08-19 2015-06-26 SDCmaterials, Inc. Coated substrates for use in catalysis and catalytic converters and methods of coating substrates with washcoat compositions
US9211603B2 (en) * 2012-01-31 2015-12-15 The Esab Group, Inc. Plasma gouging torch and angled nozzle therefor
DE102012003563B4 (de) * 2012-02-23 2017-07-06 Drägerwerk AG & Co. KGaA Einrichtung zur desinfizierenden Wundbehandlung
US9781818B2 (en) 2012-08-06 2017-10-03 Hypertherm, Inc. Asymmetric consumables for a plasma arc torch
US9497845B2 (en) 2012-08-06 2016-11-15 Hypertherm, Inc. Consumables for a plasma arc torch for bevel cutting
US10314155B2 (en) 2012-08-06 2019-06-04 Hypertherm, Inc. Asymmetric consumables for a plasma arc torch
US10721812B2 (en) 2012-08-06 2020-07-21 Hypertherm, Inc. Asymmetric consumables for a plasma arc torch
US9156025B2 (en) 2012-11-21 2015-10-13 SDCmaterials, Inc. Three-way catalytic converter using nanoparticles
US9511352B2 (en) 2012-11-21 2016-12-06 SDCmaterials, Inc. Three-way catalytic converter using nanoparticles
CN105592921A (zh) 2013-07-25 2016-05-18 Sdc材料公司 用于催化转化器的洗涂层和经涂覆基底及其制造和使用方法
US9840765B2 (en) 2013-10-16 2017-12-12 General Electric Company Systems and method of coating an interior surface of an object
CN106061600A (zh) 2013-10-22 2016-10-26 Sdc材料公司 用于重型柴油机的催化剂设计
CA2926135A1 (fr) 2013-10-22 2015-04-30 SDCmaterials, Inc. Compositions pour regenerer des pieges a nox
US9687811B2 (en) 2014-03-21 2017-06-27 SDCmaterials, Inc. Compositions for passive NOx adsorption (PNA) systems and methods of making and using same
CN104087886B (zh) * 2014-06-12 2016-08-24 广东省工业技术研究院(广州有色金属研究院) 一种等离子喷涂内孔的方法
US10603739B2 (en) * 2016-12-09 2020-03-31 Lincoln Global, Inc. Angled plasma cutting torch
KR102686242B1 (ko) 2017-01-23 2024-07-17 에드워드 코리아 주식회사 질소 산화물 감소 장치 및 가스 처리 장치
KR102646623B1 (ko) * 2017-01-23 2024-03-11 에드워드 코리아 주식회사 플라즈마 발생 장치 및 가스 처리 장치
ES2868176T3 (es) 2017-05-29 2021-10-21 Oerlikon Metco Ag Wohlen Lanza de revestimiento de plasma para revestimientos interiores
CN109536874B (zh) * 2019-01-22 2024-01-09 中国人民解放军陆军装甲兵学院 一种具有偏角喷涂功能的内孔等离子喷涂装置
CA3191050A1 (fr) 2020-08-28 2022-03-03 Nikolay Suslov Systemes, procedes et dispositifs pour generer un flux de plasma etendu principalement radialement
CN113319294B (zh) * 2021-06-28 2022-03-08 南昌航空大学 一种可拆卸式光内送粉激光增材制造熔覆头
CN117858779A (zh) 2021-08-25 2024-04-09 海别得公司 使用材料处理系统的边缘整形
CN115029656B (zh) * 2022-06-01 2024-03-19 河北航天振邦精密机械有限公司 一种大功率高精度自冷却旋转等离子喷涂装置
CN115279005B (zh) * 2022-08-31 2025-02-25 西安聚能医工科技有限公司 一种用于等离子装置的阴极头
DE102023000417A1 (de) 2023-02-07 2024-08-08 Oerlikon Metco (Us) Inc. Plasma-Brennerkopf für Innenbeschichtungen

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004189A (en) * 1959-10-05 1961-10-10 Plasmadyne Corp Combination automatic-starting electrical plasma torch and gas shutoff valve
NL279638A (fr) * 1961-06-13
DE1256816B (de) * 1965-04-09 1967-12-21 Inst Badan Jadrowych Bogenplasmabrenner
DE1924201A1 (de) * 1969-05-12 1970-11-19 Annawerk Keramische Betr E Gmb Verfahren zum Betrieb eines Plasmabrenners und zur Durchfuehrung des Verfahrens geeigneter Brenner
US3562486A (en) * 1969-05-29 1971-02-09 Thermal Dynamics Corp Electric arc torches
US3740522A (en) * 1971-04-12 1973-06-19 Geotel Inc Plasma torch, and electrode means therefor
US3914573A (en) * 1971-05-17 1975-10-21 Geotel Inc Coating heat softened particles by projection in a plasma stream of Mach 1 to Mach 3 velocity
US3707615A (en) * 1971-11-12 1972-12-26 Metco Inc Nozzle for a plasma generator
JPS555126A (en) * 1978-06-26 1980-01-16 Mitsubishi Heavy Ind Ltd Surface hardening build-up welding method
DE2913464C3 (de) * 1979-04-04 1983-11-10 Deutsche Forschungs- Und Versuchsanstalt Fuer Luft- Und Raumfahrt E.V., 5300 Bonn Gleichstrom-Plasmabrenner
DE3013076C2 (de) * 1980-04-03 1983-10-13 Daimler-Benz Ag, 7000 Stuttgart Schaufel für ein verstellbares Turbineneintrittsleitgitter
US4423304A (en) * 1981-02-20 1983-12-27 Bass Harold E Plasma welding torch
DE3241476A1 (de) * 1982-11-10 1984-05-10 Fried. Krupp Gmbh, 4300 Essen Verfahren zur einleitung von ionisierbarem gas in ein plasma eines lichtbogenbrenners und plasmabrenner zur durchfuehrung des verfahrens
JPS60140693A (ja) * 1983-12-28 1985-07-25 日立金属株式会社 抵抗膜加熱器具
DE3430383A1 (de) * 1984-08-17 1986-02-27 Plasmainvent AG, Zug Plasmaspritzbrenner fuer innenbeschichtungen
DE3435680A1 (de) * 1984-09-28 1986-04-03 Fried. Krupp Gmbh, 4300 Essen Plasmabrenner
US4558201A (en) * 1984-12-10 1985-12-10 Thermal Dynamics Corporation Plasma-arc torch with gas cooled blow-out electrode
US4745256A (en) * 1985-02-12 1988-05-17 Metallurgical Industries, Inc. Narrow substrate having weld bead of powdered metal
US4668853A (en) * 1985-10-31 1987-05-26 Westinghouse Electric Corp. Arc-heated plasma lance
JPS63235092A (ja) * 1987-03-20 1988-09-30 Kubota Ltd プラズマ粉体肉盛溶接合金及び熱間圧延用溶接肉盛ロ−ル

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362693A1 (fr) * 1988-09-30 1990-04-11 The Perkin-Elmer Corporation Extension de pistolet à plasma pour revêtir des fentes
WO1990008203A3 (fr) * 1989-01-14 1990-11-01 Ford Motor Canada Depot de metal sur une surface
US5245153A (en) * 1989-01-14 1993-09-14 Ford Motor Company Depositing metal onto a surface
WO1990010366A1 (fr) * 1989-03-03 1990-09-07 Tetronics Research & Development Company Limited Torche a arc de plasma
EP0571374A4 (fr) * 1990-01-17 1993-03-05 Univ Sydney Cathode a refroidissement par gaz destinee a un chalumeau a arc.
US5195675A (en) * 1990-03-27 1993-03-23 Verolme Machinefabriek Ijsselmonde B.V. Method for producing a composite pipe
US5014916A (en) * 1990-04-25 1991-05-14 The Perkin-Elmer Corporation Angular gas cap for thermal spray gun
FR2672459A1 (fr) * 1991-02-01 1992-08-07 Girard Frederic Dispositif de rechargement par plasma a orifice oblique.
EP0766502A1 (fr) * 1995-09-28 1997-04-02 Sulzer Metco (Irvine) Inc. Canon à plasma à cathode unique avec alimentation des poudres suivant l'axe central de la buse de sortie
JP2006218476A (ja) * 2005-02-11 2006-08-24 Sulzer Metco Ag 溶射装置
CN104704926A (zh) * 2012-08-06 2015-06-10 海别得公司 用于等离子体弧炬的不对称消耗件
CN109332775A (zh) * 2018-11-27 2019-02-15 株洲钻石切削刀具股份有限公司 一种内冷三面刃铣刀

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EP0271032A3 (en) 1990-01-10
DE3642375A1 (de) 1988-06-23
US4970364A (en) 1990-11-13
CA1277876C (fr) 1990-12-18
JPS63229164A (ja) 1988-09-26
US4877937A (en) 1989-10-31

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