EP0135826B1 - Appareil pour la pulvérisation thermique d'un plasma - Google Patents
Appareil pour la pulvérisation thermique d'un plasma Download PDFInfo
- Publication number
- EP0135826B1 EP0135826B1 EP84110175A EP84110175A EP0135826B1 EP 0135826 B1 EP0135826 B1 EP 0135826B1 EP 84110175 A EP84110175 A EP 84110175A EP 84110175 A EP84110175 A EP 84110175A EP 0135826 B1 EP0135826 B1 EP 0135826B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- combustion chamber
- focussing
- gas
- ignition
- 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.)
- Expired
Links
- 238000005507 spraying Methods 0.000 title claims description 6
- 239000011248 coating agent Substances 0.000 title description 2
- 238000000576 coating method Methods 0.000 title description 2
- 238000002485 combustion reaction Methods 0.000 claims abstract description 49
- 239000007921 spray Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000567 combustion gas Substances 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 description 19
- 239000002737 fuel gas Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000001883 metal evaporation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- VBUBYMVULIMEHR-UHFFFAOYSA-N propa-1,2-diene;prop-1-yne Chemical compound CC#C.C=C=C VBUBYMVULIMEHR-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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
- H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid
-
- 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
- B05B7/20—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 by flame or combustion
- B05B7/201—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 by flame or combustion downstream of the nozzle
- B05B7/205—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 by flame or combustion downstream of the nozzle the material to be sprayed being originally a particulate material
-
- 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
- H05H1/36—Circuit arrangements
Definitions
- the invention relates to a device for the thermal spraying of build-up welding materials, consisting of a coolable beam bundling nozzle with a space on the loading side for accommodating devices for controllable supply of the operating components, namely operating gases and build-up welding material, cf. DE-B-1 089614.
- the mouth of the carrier gas powder outlet channel is arranged directly in the region of the junction into the jet bundling channel of the bundling nozzle, the expanded space around the nozzle only serving to supply oxygen, which is mixed into the carrier gas powder stream through an annular gap.
- the nozzle is not designed to be adjustable, so that there are no possibilities for adaptation to different powders.
- the entire device must be ignited from the front, which is also not without danger.
- the invention is accordingly based on the object. to create a device working with comparable low spray losses.
- which, working according to the so-called differential pressure principle, on the one hand does not require or does not require much more than previously required for flame spraying in terms of its outlay in terms of apparatus, and on the other hand the use of all combustible gases when the combustion chamber is adapted variably.
- acetylene and different spray powders are also permitted and with which, in particular, the ignition or start-up process should also be controllable.
- the extended space is designed as a combustion chamber with a flow-accelerating transition contour for the confluence of the bundling nozzle and in the combustion chamber with respect to the confluence of the jet bundling nozzle and an axially adjustable, differential pressure-charged burner nozzle or a Nozzle holder with a nozzle is arranged and that furthermore an ignition electrode which can be set on the nozzle is arranged in the wall of the combustion chamber and this is provided with a switching element which switches on the electrode after the flushing of the bundling nozzle and before the supply of the fuel gas.
- the solution given is easiest to implement by combining the jet nozzle with a flame spray gun in such a way that the variability of the combustion chamber volume is retained. However, one remains dependent on the performance data of the spray gun used in each case. If you do not want this and can process wire as a spray additive in addition to powder, the nozzle holder is designed as a correspondingly adapted nozzle assembly while maintaining the basic principle.
- the solution according to the invention results in the following advantages with regard to the application layers: With high-melting materials (oxides, cermets, high-melting metals, etc.), it has been shown that a significantly better layer quality can be achieved. The tightness in the application layer is significantly increased compared to conventional flame spray applications.
- the adhesive strength is also significantly improved due to the higher kinetic energy of the spray particles, and there is also no impairment of the sprayed-on layer by powder particles which have baked in the beam-bundling channel and which sooner or later become detached again.
- bundling the spray jet the otherwise unavoidable spray losses for targeted applications are significantly reduced.
- the ignition device equipped with an electrode it has also proven essential for the device's long-term operability to be able to withdraw the electrode from the combustion chamber after it has been ignited, in order not to disturb the flow in the combustion chamber on the one hand and on the other to not to hinder the adaptation of the combustion chamber volume to the respective circumstances.
- combustion chamber wall is also designed to be coolable.
- the combustion chamber volume is variable due to the adjustability of the nozzle or the nozzle assembly, the residence time of the powder particles in the combustion chamber can thereby be influenced; that is, the powder is preheated in an adapted manner or brought to the desired temperature in a targeted manner before it reaches the jet bundling nozzle at high speed.
- a flow-accelerating transition contour is present between the combustion chamber and the junction into the beam bundling channel, and advantageously with respect to the device axis with a convex shape, which is of particular importance in the present case as far as otherwise because the powder particles emerge at least already melted out of the combustion chamber, the powder particles can already start in the junction area of the beam focusing channel. If this area does not fully grow when the flow is unfavorable, such approaches lead to the risk of tearing off and if such tearing particles get into the application layer, this does not lead to optimal coating results.
- both high-melting and low-melting spray additives can be sprayed, and finally there is the possibility of supplying atomizing or additional gases, which make it possible to influence the operation of the device in a targeted manner.
- the beam bundling nozzle is therefore advantageously designed in several parts, which will be explained in more detail.
- the device When the device is designed with a nozzle assembly, powder conveyance is carried out by an external powder conveying system during powder spraying, so that uniform powder conveyance is made possible.
- the wire In the case of processing wire as a spray additive, the wire is also fed via an external feed device of known type for the wire.
- additional devices for forming such a jacket flow can then also be made in the half on the confluence, preferably in the area before the confluence, which can also be generated, for example, by supplying inert gas.
- the injected gas which may also be a fuel gas, then forms a cladding layer in the channel, and baking of molten particles is practically no longer possible.
- the inner channel of the jet bundling nozzle does not have to be cylindrical, but can also be designed to widen conically towards the nozzle mouth.
- What is essential for the device according to the invention is therefore the formation of a combustion chamber in which the outlet nozzle for the fuel gases and the carrier gas stream is arranged so as to be adjustable in the longitudinal direction.
- the size of the combustion chamber is therefore variable and only the gases burned out in the combustion chamber reach the beam bundle channel under acceleration. Since the powder particles thus also only get into the combustion chamber, they are melted or melted there in an adapted manner and in this state reach the bundling channel.
- the arrangement of a retractable ignition electrode in the combustion chamber is essential in order to ensure the ignition of only a relatively small mixture of fuel gas in the combustion chamber when the device is started up.
- the essential parts of the device are the flame spray gun 6 ′′, which is only indicated by dashed lines, an adapter 3 containing the combustion chamber 2, the beam focusing nozzle 1 and the ignition device with electrode 7.
- the flame spray gun 6 ′′ requires no further explanation, as is known per se .
- the adapter 3 must of course be dimensioned with respect to its receiving bore so that the head 6 'of the flame spray gun 6 ", in which the burner nozzle 5 is seated, can be used in the adapter 3, specifically with suitable elements in different positions to fix the To be able to adapt combustion chamber 2 to the respective requirements, the ignition device with the ignition electrode 7 also being adjustable with respect to its longitudinal axis, so that the suitable ignition distance to the nozzle 5 can be set and an ignition arc or ignition spark can occur briefly for ignition .
- the ignition device is designed as follows:
- the electrode 7 forms the armature of a magnetic coil 11 which, when excited, brings the electrode 7 into the ignition position (dashed line) to the nozzle 5 against the action of a return spring 12
- the ignition current is switched on by a limit switch 13 (FIG. 6).
- the electrode 7 is reset from the combustion chamber 2 by the spring 12. It is essential for the ignition process that the ignition does not take place only when the combustion chamber 2 is filled, but immediately at the beginning of the inflow of an ignitable gas mixture into the combustion chamber.
- the beam bundling nozzle 1 including the adapter 3 is water-cooled, the cooling channels 14, 15 being connected to a connecting line 16.
- the coolant inflow connection 17 for both cooling channels 14, 15 is arranged in the attachment area of the jet bundling nozzle 18 to the adapter 3, and a common coolant outflow connection 19 is provided for both channels 14, 15.
- the beam bundling nozzle 1 can be formed from individual parts 22 which can be connected to one another and which are connected to one another with regard to the passage of coolant by bypass lines 23, provided that not every individual part 22 is provided with separate inlet and outlet connections.
- one or more gas supply openings 21 are provided at the end on the adapter side, as shown schematically in FIG. 4.
- openings 21 ' can additionally be provided in the region of the mouth-side half of the jet bundling nozzle 1, for example in the flow shadow of a gradation 24 (on the right in FIG. 4).
- the part which is movable or adjustable with respect to the combustion chamber 2 (flame spray gun 6 "or nozzle holder 6 according to FIG. 2) is advantageously provided with a marking or with an adjustable stop in order to ensure that the part in question with its for the ignition process Nozzle 5 is brought into the correct ignition distance from electrode 7.
- the ignition device or the electrode 7 is expediently arranged in the plug-in region 3 'of the adapter 3 containing the combustion chamber 2, so that the access opening in the adapter wall for the electrode 7 is covered even when the volume of the combustion chamber 2 is set to the greatest extent, which is in consideration of the high temperatures in the combustion chamber 2 is advantageous.
- the embodiment according to FIG. 2 differs from that described in FIG. 1 practically only in that instead of the spray gun a correspondingly adapted nozzle assembly or nozzle holder 6 is provided and one is no longer bound to the performance data of the flame spray gun 6 " 2, the conveying elements for the wire-shaped spray material are not shown for the flame spray gun and the nozzle holder according to FIG. 2, since such elements are generally known.
- the nozzle holder 6 according to FIG A connection for a powder storage container or for a powder supply line can be equipped with the corresponding parts of this embodiment according to Fig. 2 with corresponding reference numerals which are provided with a dash index.
- the flame spray gun or the nozzle assembly, the electrode and corresponding connecting lines are not shown.
- the convex design of the transition contour 4 ′ from the combustion chamber 2 into the beam bundling channel 25 can be seen particularly clearly here, which widens somewhat conically toward the mouth 26.
- Such an extension can also be provided in the embodiments according to FIGS. 1, 2.
- the wall of the beam focusing channel 25 is formed as a molded body 27 made of porous, gas-permeable material.
- the porous molded body 27 is surrounded by a cavity 28 which can be charged with compressed gas and to which the compressed gas is fed through a compressed gas charging connection 29.
- the molded body 27 is, for example, formed of a sintered Al 2 0 3 or Zr0 3 or mixed forms thereof. Since the molded body 27 is gas-permeable over its entire surface, a constantly renewing gas cushion is formed in the sense of the aforementioned jacket flow, it being entirely possible to additionally arrange openings 21 in the immediate vicinity of the overflow contour 4 '.
- the compressed gas supplied through the connection 29 can also be a fuel gas which provides for an additional acceleration of the entire flow in the beam focusing channel 25.
- Corresponding relays K s , K 2 , K 3 , K 4 and corresponding circuit elements delayed on and off delay ensure the necessary functional sequence on the device according to FIG. 7, t 3 representing the actual operating phase.
- the curves shown are of course only of qualitative importance.
- E.g. illustrates the ignition curve that the ignition current only flows in the time interval t 2 , in which the fuel gas only begins to flow in.
- the electrode curve shows that the electrode is withdrawn immediately after the interval t 2 .
- the fuel gas supply drops immediately, but the oxygen supply can continue to run a little for purging purposes.
Landscapes
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Nozzles (AREA)
- Coating By Spraying Or Casting (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Glass Compositions (AREA)
- Arc Welding In General (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84110175T ATE24420T1 (de) | 1983-08-30 | 1984-08-27 | Vorrichtung zum thermischen spritzen von auftragsschweisswerkstoffen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833331216 DE3331216A1 (de) | 1983-08-30 | 1983-08-30 | Vorrichtung zum thermischen spritzen von auftragsschweisswerkstoffen |
DE3331216 | 1983-08-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0135826A1 EP0135826A1 (fr) | 1985-04-03 |
EP0135826B1 true EP0135826B1 (fr) | 1986-12-30 |
Family
ID=6207788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84110175A Expired EP0135826B1 (fr) | 1983-08-30 | 1984-08-27 | Appareil pour la pulvérisation thermique d'un plasma |
Country Status (12)
Country | Link |
---|---|
US (1) | US4711627A (fr) |
EP (1) | EP0135826B1 (fr) |
JP (1) | JPS60502243A (fr) |
AT (1) | ATE24420T1 (fr) |
AU (1) | AU573259B2 (fr) |
BR (1) | BR8407043A (fr) |
CA (1) | CA1215225A (fr) |
DE (2) | DE3331216A1 (fr) |
IN (1) | IN161699B (fr) |
MX (1) | MX163708B (fr) |
SU (1) | SU1493095A3 (fr) |
WO (1) | WO1985000991A1 (fr) |
Families Citing this family (39)
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JPH0622719B2 (ja) * | 1985-05-13 | 1994-03-30 | 小野田セメント株式会社 | 複ト−チ型プラズマ溶射方法及びその装置 |
JPS61259777A (ja) * | 1985-05-13 | 1986-11-18 | Onoda Cement Co Ltd | 単ト−チ型プラズマ溶射方法及び装置 |
DE3620183A1 (de) * | 1986-06-16 | 1987-12-17 | Castolin Gmbh | Vorrichtung zum thermischen spritzen von auftragsschweisswerkstoffen |
DE3620201A1 (de) * | 1986-06-16 | 1987-12-17 | Castolin Gmbh | Vorrichtung zum thermischen spritzen von auftragsschweisswerkstoffen |
ES2019079B3 (es) * | 1986-06-16 | 1991-06-01 | Castolin Sa | Dispositivo para la inyeccion termica de materiales soldados. |
US5019686A (en) * | 1988-09-20 | 1991-05-28 | Alloy Metals, Inc. | High-velocity flame spray apparatus and method of forming materials |
US5262206A (en) * | 1988-09-20 | 1993-11-16 | Plasma Technik Ag | Method for making an abradable material by thermal spraying |
DE3903887C2 (de) * | 1989-02-10 | 1998-07-16 | Castolin Sa | Vorrichtung zum Flammspritzen von pulverförmigen Werkstoffen mittels autogener Flamme |
DE3903888C2 (de) * | 1989-02-10 | 1998-04-16 | Castolin Sa | Vorrichtung zum Flammspritzen |
US5074802A (en) * | 1989-09-12 | 1991-12-24 | Hypertherm, Inc. | Pneumatic-electric quick disconnect connector for a plasma arc torch |
DE3930726A1 (de) * | 1989-09-14 | 1991-03-28 | Matthaeus Heinz Dieter | Vorrichtung zum thermischen verspritzen von pulvern, draehten od. dgl. |
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DE4219992C3 (de) * | 1991-12-23 | 1996-08-01 | Osu Maschinenbau Gmbh | Thermisches Spritzverfahren und Spritz- und Beschleunigungsdüse zur Erzeugung von Metallschichten |
DE4228064A1 (de) * | 1992-08-24 | 1994-03-03 | Plasma Technik Ag | Plasmaspritzgerät |
US5575636A (en) * | 1994-06-21 | 1996-11-19 | Praxair Technology, Inc. | Porous non-fouling nozzle |
CH693083A5 (de) * | 1998-12-21 | 2003-02-14 | Sulzer Metco Ag | Düse sowie Düsenanordnung für einen Brennerkopf eines Plasmaspritzgeräts. |
US7164095B2 (en) | 2004-07-07 | 2007-01-16 | Noritsu Koki Co., Ltd. | Microwave plasma nozzle with enhanced plume stability and heating efficiency |
US20060052883A1 (en) * | 2004-09-08 | 2006-03-09 | Lee Sang H | System and method for optimizing data acquisition of plasma using a feedback control module |
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 |
SE529053C2 (sv) | 2005-07-08 | 2007-04-17 | Plasma Surgical Invest Ltd | Plasmaalstrande anordning, plasmakirurgisk anordning och användning av en plasmakirurgisk anordning |
TW200742506A (en) | 2006-02-17 | 2007-11-01 | Noritsu Koki Co Ltd | Plasma generation apparatus and work process apparatus |
JP4620015B2 (ja) * | 2006-08-30 | 2011-01-26 | 株式会社サイアン | プラズマ発生装置およびそれを用いるワーク処理装置 |
US7928338B2 (en) | 2007-02-02 | 2011-04-19 | Plasma Surgical Investments Ltd. | Plasma spraying device and method |
CN102441505A (zh) * | 2007-05-09 | 2012-05-09 | 诺信公司 | 用于粉末喷枪的喷嘴 |
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 |
CN102204414B (zh) * | 2008-08-20 | 2014-10-22 | 视觉动力控股有限公司 | 产生用于对衬底表面进行构图的等离子体放电的设备 |
US20100074810A1 (en) * | 2008-09-23 | 2010-03-25 | Sang Hun Lee | Plasma generating system having tunable plasma nozzle |
GB0819359D0 (en) * | 2008-10-22 | 2008-11-26 | Intrinsiq Materials Ltd | Plasma torch |
US7921804B2 (en) | 2008-12-08 | 2011-04-12 | Amarante Technologies, Inc. | Plasma generating nozzle having impedance control mechanism |
US20100201272A1 (en) * | 2009-02-09 | 2010-08-12 | Sang Hun Lee | Plasma generating system having nozzle with electrical biasing |
US20100254853A1 (en) * | 2009-04-06 | 2010-10-07 | Sang Hun Lee | Method of sterilization using plasma generated sterilant gas |
US8613742B2 (en) | 2010-01-29 | 2013-12-24 | Plasma Surgical Investments Limited | Methods of sealing vessels using plasma |
US20110229649A1 (en) * | 2010-03-22 | 2011-09-22 | Baranovski Viatcheslav E | Supersonic material flame spray method and apparatus |
US9089319B2 (en) | 2010-07-22 | 2015-07-28 | Plasma Surgical Investments Limited | Volumetrically oscillating plasma flows |
DE102012000816A1 (de) * | 2012-01-17 | 2013-07-18 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zum thermischen Spritzen |
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-
1983
- 1983-08-30 DE DE19833331216 patent/DE3331216A1/de not_active Withdrawn
-
1984
- 1984-08-27 WO PCT/DE1984/000173 patent/WO1985000991A1/fr unknown
- 1984-08-27 AT AT84110175T patent/ATE24420T1/de not_active IP Right Cessation
- 1984-08-27 JP JP59503258A patent/JPS60502243A/ja active Granted
- 1984-08-27 AU AU33155/84A patent/AU573259B2/en not_active Ceased
- 1984-08-27 EP EP84110175A patent/EP0135826B1/fr not_active Expired
- 1984-08-27 BR BR8407043A patent/BR8407043A/pt not_active IP Right Cessation
- 1984-08-27 DE DE8484110175T patent/DE3461750D1/de not_active Expired
- 1984-08-27 US US06/731,999 patent/US4711627A/en not_active Expired - Fee Related
- 1984-08-30 CA CA000462103A patent/CA1215225A/fr not_active Expired
- 1984-08-30 MX MX202563A patent/MX163708B/es unknown
- 1984-09-03 IN IN612/CAL/84A patent/IN161699B/en unknown
-
1985
- 1985-04-30 SU SU853896602A patent/SU1493095A3/ru active
Also Published As
Publication number | Publication date |
---|---|
ATE24420T1 (de) | 1987-01-15 |
DE3331216A1 (de) | 1985-03-14 |
AU3315584A (en) | 1985-03-29 |
WO1985000991A1 (fr) | 1985-03-14 |
IN161699B (fr) | 1988-01-16 |
US4711627A (en) | 1987-12-08 |
DE3461750D1 (en) | 1987-02-05 |
BR8407043A (pt) | 1985-07-30 |
MX163708B (es) | 1992-06-15 |
AU573259B2 (en) | 1988-06-02 |
JPH0416217B2 (fr) | 1992-03-23 |
JPS60502243A (ja) | 1985-12-26 |
EP0135826A1 (fr) | 1985-04-03 |
CA1215225A (fr) | 1986-12-16 |
SU1493095A3 (ru) | 1989-07-07 |
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