EP1065914B1 - Plasmaspritzvorrichtung - Google Patents
Plasmaspritzvorrichtung Download PDFInfo
- Publication number
- EP1065914B1 EP1065914B1 EP00810376A EP00810376A EP1065914B1 EP 1065914 B1 EP1065914 B1 EP 1065914B1 EP 00810376 A EP00810376 A EP 00810376A EP 00810376 A EP00810376 A EP 00810376A EP 1065914 B1 EP1065914 B1 EP 1065914B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- torch
- contact elements
- shank
- quick
- spraying device
- 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 - Lifetime
Links
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
- H05H1/34—Details, e.g. electrodes, 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
- H05H1/34—Details, e.g. electrodes, nozzles
- H05H1/3478—Geometrical details
Definitions
- the invention relates to a trained according to the preamble of claim 1 Plasma injector.
- Plasma spray devices with a radially emerging from the burner head are particularly suitable for coating borehole or pipe walls.
- walls of pipes and bores with small diameter, for example from 40 mm must be able to coat the plasma spraying devices and especially the burner heads are very compact be designed.
- the thermal increases Load on the burner head which results in increased wear of certain torch head parts such as the cathode and the usual trained as a nozzle noticeable.
- the lifespan of the above Elements is also particularly bad heat dissipation Coating of bore or pipe walls negatively affected.
- the entire burner head as a modular component, its contact elements and / or the insulating body the end face to be directed towards the burner shaft protrude from the burner head and with recesses and / or elevations are provided on which to engage quick-release means arranged on the burner shaft the burner head can be replaced quickly and easily.
- no additional parts such as e.g. Clamping pin or the like to be provided so that this on the burner shaft can be fixed and removed again.
- Preferred embodiments of the plasma spraying device are in the dependent ones Claims 2 to 9 circumscribed
- FIGs 1a and 1b show the burner head 1 and Figures 2a and 2b the Brenner shaft 2 each in two different, not to scale views. Since the basic structure and mode of operation of generic plasma spraying devices is known, is only related to the following essential features of the invention.
- the burner head 1 exists of an anode base body 4, a cathode base body 6 and one in between Insulated body 5 inserted, which electrically opposite the anode base body 4 the cathode base body 6 isolated.
- the anode base body 4 is with a Anode nozzle 10 and the cathode base body 6 are provided with a cathode 11, wherein both the anode nozzle 10 and the cathode 11 transverse to the longitudinal central axis of the burner head 1 are inserted in these, so that a generated plasma jet radially emerges from the burner head 1.
- Both the anode base body 4 and the Cathode base bodies 6 are made of an electrically highly conductive material such as, for example Made of brass.
- the anode nozzle 10 is electrically connected to the Anode base body 4 and the cathode 11 electrically with the cathode base body 6 connected.
- the coating powder is supplied via a tube 13, which is arranged on the outside of the burner head 1. Since the burner head 1 very is compact, the plasma spray device is particularly suitable for Coating of bore and pipe walls with a diameter of approx. 40mm.
- a large number of channels 15 are provided for supplying the operating and cooling media, which are not dealt with in detail.
- O-rings (not shown) are provided.
- One for the supply of the coating material The hose provided can be pushed onto the tube 13 and be subtracted from it.
- Both the anode base body 4 is for the power supply of the burner head 1 as well as the cathode base body 6, each with an electrical contact element 7, 8 Mistake.
- the insulating body 5 has an extension 9, which is between the extends two contact elements 7, 8 and insulates them electrically from one another. Both the contact elements 7, 8 and the extension 9 of the insulating body 5 protrude the end face S of the burner head 1 to be directed toward the burner shaft 2. Both Contact elements 7, 8 are provided with lateral recesses 17, 18 on the will be discussed in more detail below.
- the extension 9 of the insulating body 5 protrudes the two contact elements 7, 8 both laterally and forwards.
- the burner shaft 2 consists essentially of two spaced tubes 20, 21, through the interior of which the media required for the operation of the burner head 1 are led. Between the two tubes 20, 21 are two quick release levers 23 arranged, each provided with a slot 25 on the front Have eccentric 24. On the end face S1 facing the burner head 1 the two tubes 20, 21 are each provided with a connecting element 27, 28. Both Connection elements 27, 28 each have a recess 30, 31 for receiving the Contact elements 7, 8 of the burner head 1.
- FIG. 3a shows burner shaft 2 with the quick-release levers 23 in the starting position, in which the burner head 1 can be attached to the burner shaft 2.
- the quick release lever 23 To the contact elements 7 of the burner head 1 in the corresponding recesses 30 of the burner shaft 2 inserted and the quick release lever 23, as in the Fig. 3b shown, pressed upwards.
- the eccentrics 24 of the quick-release levers engage 23 into the recesses 17 of the contact elements 7.
- the eccentrics 24 are designed so that when the respective pivot lever 23 is pivoted the eccentric 24 pulls the contact element 7 in the direction of the burner shaft 2.
- 3c shows the swivel lever 23 in the closed operative position, in which the burner head 1 fixed to the burner shaft 2 and the electrical connection between the burner shaft 2 and burner head 1 is ensured and also the channels of the burner shaft 2 are connected to those of the burner head 1.
- the o-rings ensures that the channels are securely sealed and that the burner head 1 rests with a certain preload on the burner shaft 2, whereby the The swivel lever 23 remains securely in the active position.
- the burner head 1 Due to the modular design of the burner head 1 and the training described the contact elements 7, 8 and the quick release lever 23, on the one hand possible, the burner head 1 - and of course the potential wear parts such as anode nozzle 10 or cathode 11 - can be replaced quickly and easily. By doing the contact elements 7, 8 in addition to their actual task of power transmission can also be used as a draw bolt, the burner head 1 can very much be kept compact. Due to the specific training of the two contact elements 7, 8 extending extension 9 of the insulating body 5, which the contact elements 7, 8 protrudes laterally and in the longitudinal direction, a long Isolation gap formed between the two contact elements 7, 8, so that the two Contact elements 7, 8 are securely insulated from each other.
- the previous embodiment is by no means conclusive Character should have, but that within the scope of the claims defined scope of protection of previous embodiment different designs of the plasma spray device are possible. So could, for example, the contact elements instead of recesses with elevations be provided on which the quick-release means arranged on the burner shaft can attack.
- the insulating body or its extension could also be used be provided with recesses and / or surveys on which the burner can attack arranged quick release.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Geometry (AREA)
- Plasma Technology (AREA)
- Coating By Spraying Or Casting (AREA)
Description
- Fig. 1a
- eine Seitenansicht des Brennerkopfs;
- Fig. 1b
- eine Ansicht auf die dem Brennerschaft zuzuwendenden Stirnseite des Brennerkopfs;
- Fig. 2a
- eine Seitenansicht des Brennerschafts;
- Fig. 2b
- eine Ansicht auf die dem Brennerkopf zuzuwendende Stirnseite des Brennerschafts;
- Fig. 3a bis 3c
- eine Draufsicht auf den Brennerkopf und den Vorderteil des Brennerschafts während verschiedenen Phasen beim Befestigen des Brennerkopfs am Brennerschaft;
Claims (9)
- Plasmaspritzvorrichtung, insbesondere zum Beschichten von Bohrungs- und Rohrwandungen, mit einem Brennerschaft (2) und einem daran zu befestigenden Brennerkopf (1) mit radial austretendem Plasmastrahl, wobei der Brennerkopf (1) einen Anodenbasiskörper (4), einen Kathodenbasiskörper (6) und einen dazwischen eingefügten Isolierkörper (5) aufweist, und wobei der Anodenbasiskörper (4) und der Kathodenbasiskörper (5) mit zumindest je einem elektrischen Kontaktelement (7, 8) für die Stromübertragung vom Brennerschaft (2) zum Brennerkopf (1) versehen sind, dadurch gekennzeichnet, dass der Isolierkörper (5) und/oder die Kontaktelemente (7, 8) die zum Brennerschaft (2) zu richtende Stirnseite (S) des Brennerkopfs (1) überragt bzw. überragen, und dass der Isolierkörper (5) und/oder die Kontaktelemente (7, 8) mit Ausnehmungen (17) und/oder Erhebungen versehen ist/sind, an welchen am Brennerschaft (2) angeordnete Schnellspannmittel (23, 24) anzugreifen bestimmt sind.
- Plasmaspritzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwei achsparallele Kontaktelemente (7, 8) vorgesehen sind, welche die zum Brennerschaft (2) zu richtende Stirnseite (S) des Brennerkopfs (1) überragen, wobei der Isolierkörper (5) mit einem sich zwischen den Kontaktelementen (7, 8) erstreckenden Fortsatz (9) versehen ist, welch letzterer die Kontaktelemente (7, 8) sowohl seitlich wie auch auf der zum Brennerschaft (2) zu richtenden Stirnseite (S) überragt.
- Plasmaspritzvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Brennerschaft (2) mit zwei drehbar gelagerten, mit je einem Exzenter (24) versehenen Schnellspannhebeln (23) versehen ist, wobei die Exzenter (24) zum Fixieren des Brennerkopfs (1) mit den Ausnehmungen (17) und/oder Erhebungen der Kontaktelemente (7, 8) und/oder den Ausnehmungen und/oder Erhebungen des Fortsatzes (9) zusammenwirken.
- Plasmaspritzvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Exzenter (24) mit je einem Schlitz (25) versehen sind, in den der Fortsatz (9) des Isolierkörpers (5) beim Fixieren des Brennerkopfs (1) eingreift.
- Plasmaspritzvorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die äussere Formgebung des am jeweiligen Schnellspannhebels (23) angeformten Exzenters (24) sowie die Form der am jeweiligen Kontaktelement (7, 8) angeformten Ausnehmungen (17) und/oder Erhebungen derart aufeinander abgestimmt sind, dass beim Verschwenken des Schnellspannhebels (23) der Exzenter (24) die Kontaktelemente (7, 8) in Richtung des Brennerschafts (2) zieht.
- Plasmaspritzvorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass der Brennerkopf (1) zwei mit Ausnehmungen (17) versehene Kontaktelemente (7, 8) aufweist und der Brennerschaft (2) mit zwei Schnellspannhebeln (23) versehen ist, welche von einer Ausgangs- in eine Wirkstellung bewegbar sind, wobei die Schnellspannhebel (23) in der Wirkstellung im Brennerschaft (2) aufgenommen sind.
- Plasmaspritzvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Brennerschaft (2) durch zwei beabstandete Rohre (20, 21) gebildet wird, und dass die Schnellspannhebel (23) in der geschlossenen Wirkstellung im Raum zwischen den Rohren (20, 21) aufgenommen sind.
- Plasmaspritzvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kontaktelemente (7, 8) im wesentlichen plattenförmig ausgebildet und parallel zur Längsmittelachse des Brennerkopfs (1) angeordnet sind.
- Plasmaspritzvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schnellspannhebel (23) aus einem elektrisch isolierenden Material gefertigt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH121199 | 1999-06-30 | ||
CH121199 | 1999-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1065914A1 EP1065914A1 (de) | 2001-01-03 |
EP1065914B1 true EP1065914B1 (de) | 2004-01-21 |
Family
ID=4205115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00810376A Expired - Lifetime EP1065914B1 (de) | 1999-06-30 | 2000-05-03 | Plasmaspritzvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US6386140B1 (de) |
EP (1) | EP1065914B1 (de) |
JP (1) | JP4287986B2 (de) |
CA (1) | CA2311088C (de) |
DE (1) | DE50005068D1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US6863930B2 (en) | 2002-09-06 | 2005-03-08 | Delphi Technologies, Inc. | Refractory metal mask and methods for coating an article and forming a sensor |
ATE360975T1 (de) * | 2003-12-09 | 2007-05-15 | Amt Ag | Plasmaspritzvorrichtung |
SE529053C2 (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 |
SE529056C2 (sv) | 2005-07-08 | 2007-04-17 | Plasma Surgical Invest Ltd | Plasmaalstrande anordning, plasmakirurgisk anordning och användning av en plasmakirurgisk anordning |
US7928338B2 (en) * | 2007-02-02 | 2011-04-19 | Plasma Surgical Investments Ltd. | Plasma spraying device and method |
US20080220558A1 (en) * | 2007-03-08 | 2008-09-11 | Integrated Photovoltaics, Inc. | Plasma spraying for semiconductor grade silicon |
US7589473B2 (en) * | 2007-08-06 | 2009-09-15 | Plasma Surgical Investments, Ltd. | Pulsed plasma device and method for generating pulsed plasma |
US8735766B2 (en) * | 2007-08-06 | 2014-05-27 | Plasma Surgical Investments Limited | Cathode assembly and method for pulsed plasma generation |
US8253058B2 (en) * | 2009-03-19 | 2012-08-28 | Integrated Photovoltaics, Incorporated | Hybrid nozzle for plasma spraying silicon |
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 |
US9272360B2 (en) * | 2013-03-12 | 2016-03-01 | General Electric Company | Universal plasma extension gun |
IL300972A (en) | 2020-08-28 | 2023-04-01 | Plasma Surgical Invest Ltd | Systems, methods and devices for producing radially expanded plasma flow |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3100824A1 (de) * | 1981-01-14 | 1982-07-29 | Gebr. Lohmann, 5980 Werdohl | Rohrleitungskupplung |
DE3430383A1 (de) * | 1984-08-17 | 1986-02-27 | Plasmainvent AG, Zug | Plasmaspritzbrenner fuer innenbeschichtungen |
DE4228064A1 (de) | 1992-08-24 | 1994-03-03 | Plasma Technik Ag | Plasmaspritzgerät |
ATE146643T1 (de) | 1993-09-29 | 1997-01-15 | Sulzer Metco Ag | Brennerkopf für plasmaspritzgeräte |
-
2000
- 2000-05-03 DE DE50005068T patent/DE50005068D1/de not_active Expired - Lifetime
- 2000-05-03 EP EP00810376A patent/EP1065914B1/de not_active Expired - Lifetime
- 2000-05-25 US US09/579,252 patent/US6386140B1/en not_active Expired - Lifetime
- 2000-06-09 CA CA002311088A patent/CA2311088C/en not_active Expired - Fee Related
- 2000-06-13 JP JP2000176504A patent/JP4287986B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2311088A1 (en) | 2000-12-30 |
JP4287986B2 (ja) | 2009-07-01 |
JP2001043996A (ja) | 2001-02-16 |
CA2311088C (en) | 2004-01-20 |
EP1065914A1 (de) | 2001-01-03 |
US6386140B1 (en) | 2002-05-14 |
DE50005068D1 (de) | 2004-02-26 |
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