EP1692922B1 - Plasma spraying device - Google Patents
Plasma spraying device Download PDFInfo
- Publication number
- EP1692922B1 EP1692922B1 EP04761956A EP04761956A EP1692922B1 EP 1692922 B1 EP1692922 B1 EP 1692922B1 EP 04761956 A EP04761956 A EP 04761956A EP 04761956 A EP04761956 A EP 04761956A EP 1692922 B1 EP1692922 B1 EP 1692922B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- burner head
- spray device
- plasma spray
- lines
- 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
- 238000007750 plasma spraying Methods 0.000 title abstract description 6
- 239000007921 spray Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims 2
- 239000012809 cooling fluid Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 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
- H05H1/34—Details, e.g. electrodes, nozzles
- H05H1/3423—Connecting means, e.g. electrical connecting means or fluid connections
Definitions
- the invention relates to a trained according to the preamble of claim 1 plasma spray device.
- a plasma spraying device with a replaceable burner head which is connected by means of plug-in connections with the burner shaft, is known for example from EP 585 203.
- the object of the invention is therefore to propose a trained according to the preamble of claim 1 plasma spray device, in which the lines between the burner shaft and the burner head can be securely and reliably connected, in particular, in the cooling medium receiving lines, a tight connection is to be ensured while at the intended for the transmission of electrical energy lines the lowest possible contact resistance is in the foreground, and in particular the number of lines to be optimized.
- the basic idea of the invention is to provide tubular ducts between the burner shaft and the burner head, by means of which both the cooling medium necessary for cooling the burner head as well as the necessary for generating an electric arc electric energy can be transmitted, said tubular conduits are each provided with a mechanically separable interface, a positive and non-positive connection between the respective line of the burner shaft and Ensures the corresponding line section of the burner head.
- a mechanically separable interface which ensures a positive and non-positive connection between the respective lines, on the one hand a hydraulically tight connection between the lines can be ensured.
- the burner shaft 1 serves to supply the necessary for the operation of the burner head 2 resources.
- the term "operating means” means both the media to be supplied to the burner head, such as cooling liquid and plasma gas, but also the electrical energy, the coating powder and optionally protective gas, although this list is not to be regarded as conclusive.
- the burner head 2 consists essentially of a rear cathode body 3, a front anode body.
- cathode body 3 acting as a cathode electrode 6 is inserted, while the anode body 4 is provided with an anode 7 acting as an electrode.
- the cathode 6 is formed substantially cylindrical while the anode 7 is formed as a hollow cylinder and at the same time forms the nozzle, from which the plasma jet emerges.
- Both the cathode body 3 and the anode body 4 are made of a metal with good electrical and good thermal conductivity. As metals for this example, copper or brass come into question.
- Both in the cathode body 3 as well as in the anode body 4 is ever an annular cooling channel 8, 9 embedded.
- These two cooling channels 8, 9 are each provided with an inlet and outlet, to each of which a tubular line section 11, 12 is soldered.
- the respective line section 11, 12 is provided at its end with a hollow cylindrical section 13, 14 which is enlarged in diameter and which serves as a stop for a union nut 15, 16.
- the tubular line sections 11, 12 serve on the one hand to supply a cooling medium - cooling water to the burner head. On the other hand, they serve as electrical conductors, by means of which the electrical energy necessary for generating the arc is transmitted from the burner shaft 1 to the burner head 2.
- the burner shaft 1 is provided with a hollow cylindrical, the burner head 2 facing front part 1 a, in which open the lines provided for supplying the media and equipment.
- two of a total of four tubular conduits 17, 18 can be seen, which serve to supply the cooling medium as well as the electrical energy.
- These tubular conduits 17, 18 each have at their ends a sleeve 19, 20 provided with an external thread.
- the sleeves 19, 20 are preferably soldered to the respective lines 17, 18.
- the respective union nut 15, 16 is screwed onto the thread of the respective sleeve 19, 20 and tightened, whereby a secure and tight connection between the respective line 17, 18 of the burner shaft 1 and the respective line section 11, 12 of the burner head 2 consists.
- the preferably provided with flats for applying a wrench union nut 15, 16 forms together with the respective sleeve 19, 20, a mechanical interface S1, S2.
- Both the diameter-enlarged, hollow cylindrical portion 13, 14 as well as the provided with an external thread sleeve 19, 20 are provided with flat end faces, which create the latter to each other.
- the hollow cylindrical Sections 13, 14 as well as the sleeves 19, 20 in the region adjacent to the end faces each have an O-ring 21, 22, 23, 24.
- the four mentioned line sections 11, 12 are dimensioned such that they enable a secure mechanical fastening of the burner head 2 to the burner shaft 1 together with the screw connections without the need for additional mechanical connecting elements.
- FIG. 2 which shows a plan view of the anode body 4 of the burner head, the two leading into the anode body 4 line sections 11, 11a for supplying the cooling medium can be seen.
- the at the respective line section 11, 11a fixed union nut 15, 15a is shown in longitudinal section.
- Between the two mentioned line sections 11, 11a of the radially leading into the cathode body 3 line section 26 for supplying the plasma gas is visible.
- a screw connection has the Another advantage that, in contrast to a plug connection, an interface with a good electrical contact, with low contact resistance and large contact surface is formed by them. In addition, it is relatively insensitive in terms of oxidation and contamination, since any protection when tightening the nut is displaced from the contact surfaces. As a result, in particular, the risk of parasitic arcs is reduced. Finally, a screw connection guarantees a high mechanical stability, so that can be dispensed with additional mechanical fasteners.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
- Nozzles (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft eine gemäss dem Oberbegriff des Anspruchs 1 ausgebildete Plasmaspritzvorrichtung.The invention relates to a trained according to the preamble of
Bekanntermassen unterliegen bei gattungsgemässen Plasmaspritzvorrichtungen gewisse Teile des Brennerkopfs, beispielsweise die Elektrode und die Brennerdüse, einem hohen Verschleiss. Um diese abgenutzten Teile einfach und bequem ersetzen zu können, finden vermehrt Plasmaspritzvorrichtungen mit auswechselbaren Brennerköpfen Verwendung. Eine Problematik auswechselbarer Brennerköpfe besteht darin, dass die zum Zuführen der Betriebsmittel, insbesondere der Kühlflüssigkeit, vorgesehenen Leitungen an der Schnittstelle zwischen Brennerschaft und Brennerkopf dicht miteinander verbunden werden müssen, was bei den bis anhin zumeist eingesetzten Steckverbindungen oft Schwierigkeiten bereitet. Ausserdem besteht die Gefahr, dass die zum Übertragen der elektrischen Energie vorgesehenen Leitungen an der Kupplungsstelle durch das Entstehen von parasitären Lichtbögen schnell verschleissen, zumal zum Erzeugen des Lichtbogens in der Regel Ströme von mehreren hundert Ampere übertragen werden müssen.It is known that certain parts of the burner head, for example the electrode and the burner nozzle, are subject to high wear in plasma spraying devices of the generic type. In order to be able to replace these worn parts easily and conveniently, plasma spray devices with exchangeable burner heads are increasingly being used. One problem with interchangeable burner heads is that the lines provided for supplying the operating means, in particular the cooling liquid, must be tightly connected to one another at the interface between the burner shaft and the burner head, which often causes difficulties with the plug-in connections used hitherto. There is also the risk that the lines provided for transmitting the electrical energy at the coupling point wear out quickly due to the generation of parasitic arcs, especially since currents of several hundred amperes generally have to be transmitted to generate the arc.
Eine Plasmaspritzvorrichtung mit einem auswechselbaren Brennerkopf, der mittels Steckverbindungen mit dem Brennerschaft verbunden ist, ist beispielsweise aus der EP 585 203 bekannt.A plasma spraying device with a replaceable burner head, which is connected by means of plug-in connections with the burner shaft, is known for example from EP 585 203.
Die Aufgabe der Erfindung besteht nun darin, eine nach dem Oberbegriff des Anspruchs 1 ausgebildete Plasmaspritzvorrichtung vorzuschlagen, bei der die Leitungen zwischen dem Brennerschaft und dem Brennerkopf sicher und zuverlässig verbunden werden können, wobei insbesondere bei den das Kühlmedium aufnehmenden Leitungen eine dichte Verbindung gewährleistet werden soll, während bei den für die Übertragung der elektrischen Energie vorgesehenen Leitungen ein möglichst geringer Übergangswiderstand im Vordergrund steht, und wobei insbesondere auch die Anzahl der Leitungen optimiert werden soll.The object of the invention is therefore to propose a trained according to the preamble of
Diese Aufgabe wird durch eine Plasmaspritzvorrichtung gelöst, welche mit den im Kennzeichen des Anspruchs 1 aufgeführten Merkmalen versehen ist.This object is achieved by a plasma spraying device, which is provided with the features listed in the characterizing part of
Der grundsätzliche Erfindungsgedanke besteht darin, rohrförmige Leitungen zwischen dem Brennerschaft und dem Brennerkopf vorzusehen, mittels welchen sowohl das zum Kühlen des Brennerkopfs notwendige Kühlmedium wie auch die zum Erzeugen eines Lichtbogens notwendige elektrische Energie übertragen werden kann, wobei die genannten rohrförmigen Leitungen mit je einer mechanisch auftrennbaren Schnittstelle versehen sind, die eine form- und kraftschlüssige Verbindung zwischen der jeweiligen Leitung des Brennerschafts und dem korrespondierenden Leitungsabschnitt des Brennerkopfs gewährleistet. Durch eine mechanisch auftrennbare Schnittstelle, die eine form- und kraftschlüssige Verbindung zwischen den jeweiligen Leitungen sicherstellt, kann zum einen eine hydraulisch dichte Verbindung zwischen den Leitungen sichergestellt werden. Zum anderen wird dadurch eine Schnittstelle mit geringem elektrischen Übergangswiderstand geschaffen, die auch bei erschwerten Bedingungen, wie beispielsweise oxydierten oder verschmutzten Kontaktstellen, eine sichere, dauerhafte und zuverlässige Stromübertragung sicherstellt. Indem rohrförmige Leitungen vorgesehen werden, welche zum einen das Kühlmedium aufnehmen und zum anderen die elektrische Energie übertragen, kann zudem sowohl der Platzbedarf wie auch die Anzahl der Leitungen reduziert bzw. optimiert werden.The basic idea of the invention is to provide tubular ducts between the burner shaft and the burner head, by means of which both the cooling medium necessary for cooling the burner head as well as the necessary for generating an electric arc electric energy can be transmitted, said tubular conduits are each provided with a mechanically separable interface, a positive and non-positive connection between the respective line of the burner shaft and Ensures the corresponding line section of the burner head. By a mechanically separable interface, which ensures a positive and non-positive connection between the respective lines, on the one hand a hydraulically tight connection between the lines can be ensured. On the other hand, this creates an interface with low electrical contact resistance, which ensures reliable, permanent and reliable power transmission even under difficult conditions, such as, for example, oxidized or soiled contact points. In addition, by providing tubular conduits which on the one hand receive the cooling medium and on the other hand transmit the electrical energy, both the space requirement and the number of conduits can be reduced or optimized.
Bevorzugte Ausführungsformen der Plasmaspritzvorrichtung sind in den abhängigen Ansprüchen 2 bis 10 umschrieben.Preferred embodiments of the plasma spraying device are described in the
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand von Zeichnungen näher erläutert. In diesen Zeichnungen zeigt:
- Fig. 1
- einen Längsschnitt durch den Brennerkopf;
- Fig. 2
- eine Draufsicht auf den Anodenkörper des Brennerkopfs;
- Fig. 1
- a longitudinal section through the burner head;
- Fig. 2
- a plan view of the anode body of the burner head;
Die Figur 1 zeigt in teilweise schematischer Darstellung den vorderen Teil des Brennerschafts 1 sowie den gesamten Brennerkopf 2 in einem Längsschnitt, wobei nachfolgend insbesondere auf die im Zusammenhang mit der Erfindung wesentlichen Merkmale eingegangen wird. Der Brennerschaft 1 dient dem Zuführen der für den Betrieb des Brennerkopfs 2 notwendigen Betriebsmittel. Unter dem Begriff Betriebsmittel werden im vorliegenden Fall sowohl die dem Brennerkopf zuzuführenden Medien wie Kühlflüssigkeit und Plasmagas aber auch die elektrische Energie, das Beschichtungspulver sowie ggf. Schutzgas verstanden, wobei diese Aufzählung nicht als abschliessend zu betrachten ist. Der Brennerkopf 2 besteht im wesentlichen aus einem hinteren Kathodenkörper 3, einem vorderen Anodenkörper 4 und einer dazwischengefügten Isolierscheibe 5, welche den Kathodenkörper 3 und den Anodenkörper 4 radial überragt und die beiden Körper 3, 5 gegeneinander elektrisch isoliert. In den Kathodenkörper 3 ist eine als Kathode 6 wirkende Elektrode eingelassen, während der Anodenkörper 4 mit einer als Anode 7 wirkenden Elektrode versehen ist. Die Kathode 6 ist im wesentlichen zylindrisch ausgebildet während die Anode 7 hohlzylindrisch ausgebildet ist und gleichzeitig die Düse bildet, aus welcher der Plasmastrahl austritt. Sowohl der Kathodenkörper 3 wie auch der Anodenkörper 4 bestehen aus einem Metall mit guter elektrischer- sowie guter Wärmeleitfähigkeit. Als Metalle hierfür kommen beispielsweise Kupfer oder Messing in Frage. Sowohl in den Kathodenkörper 3 wie auch in den Anodenkörper 4 ist je ein ringförmiger Kühlkanal 8, 9 eingelassen. Diese beiden Kühlkanale 8, 9 sind mit je einem Ein- und Auslass versehen, an welchen jeweils ein rohrförmiger Leitungsabschnitt 11, 12 angelötet ist. Der jeweilige Leitungsabschnitt 11, 12 ist endseitig mit einem im Durchmesser vergrösserten, hohlzylindrischen Abschnitt 13, 14 versehen, der als Anschlag für eine Überwurfmutter 15, 16 dient. Die rohrförmigen Leitungsabschnitte 11, 12 dienen einerseits dem Zuführen eines Kühlmediums - Kühlwasser- zum Brennerkopf. Andererseits dienen sie als elektrische Leiter, mittels welchen die zum Erzeugen des Lichtbogens notwendige elektrische Energie vom Brennerschaft 1 auf den Brennerkopf 2 übertragen wird.1 shows in a partially schematic representation of the front part of the
Der Brennerschaft 1 ist mit einem hohlzylindrischen, dem Brennerkopf 2 zugewandten Vorderteil 1 a versehen, in welchen die zum Zuführen der Medien und Betriebsmittel vorgesehenen Leitungen münden. Namentlich sind aus der Darstellung gemäss Fig. 1 zwei von insgesamt vier rohrförmigen Leitungen 17, 18 ersichtlich, welche dem Zuführen des Kühlmediums sowie der elektrischen Energie dienen. Diese rohrförmigen Leitungen 17, 18 weisen endseitig je eine mit einem Aussengewinde versehene Hülse 19, 20 auf. Die Hülsen 19, 20 sind vorzugsweise an den entsprechenden Leitungen 17, 18 angelötet. Die jeweilige Überwurfmutter 15, 16 ist auf das Gewinde der jeweiligen Hülse 19, 20 aufgeschraubt und festgezogen, wodurch eine sichere und dichte Verbindung zwischen der jeweiligen Leitung 17, 18 des Brennerschafts 1 und dem jeweiligen Leitungsabschnitt 11, 12 des Brennerkopfs 2 besteht. Die vorzugsweise mit Abflachungen zum Ansetzen eines Schraubenschlüssels versehene Überwurfmutter 15, 16 bildet zusammen mit der jeweiligen Hülse 19, 20 eine mechanische Schnittstelle S1, S2. Sowohl der im Durchmesser vergrösserte, hohlzylindrische Abschnitt 13, 14 wie auch die mit einem Aussengewinde versehene Hülse 19, 20 sind mit planen Stirnflächen versehen, welche letztere sich aneinander anlegen. Zusätzlich weisen die hohlzylindrischen Abschnitte 13, 14 wie auch die Hülsen 19, 20 in dem an die Stirnflächen angrenzenden Bereich je einen O-Ring 21, 22, 23, 24 auf. Die vier genannten Leitungsabschnitte 11, 12 sind derart dimensioniert, dass sie zusammen mit den Schraubverbindungen ein sicheres mechanisches Befestigen des Brennerkopfs 2 am Brennerschaft 1 ermöglichen, ohne dass zusätzliche mechanische Verbindungselemente notwendig sind. Um den Brennerkopf 2 vom Brennerschaft 1 zu lösen, brauchen lediglich die Überwurfmuttern 15, 16 gelöst zu werden. Nach dem Lösen der Überwurfmuttern 15, 16 kann der Brennerkopf 2 nach links vom Brennerschaft abgezogen werden.The
Nebst den vier Kühlwasserleitungen 17, 18 führen weitere Leitungen vom Brennerschaft 1 zum Brennerkopf 2. Diesbezüglich wird ein mit dem Kathodenkörper 3 verbundener Leitungsabschnitt 26 erwähnt, der radial in den Kathodenkörper 3 führt und dem Zuführen von Plasmagas dient, während über einen weiteren Leitungsabschnitt 27, der unterhalb des Anodenkörpers 4 verläuft, Spritzpulver radial in den Plasmastrahl eingebracht werden kann. Die beiden genannten Leitungsabschnitte 26, 27 werden in herkömmlicher Weise mittels einer Steckverbindung mit der entsprechenden Leitung 28, 29 des Brennerschafts 1 verbunden. Zum Verbinden der Teile des Brennerkopfs 1, namentlich des Kathodenkörpers 3, des Anodenkörpers 4 und der dazwischengefügten Isolierscheibe 5, sind drei Schrauben 30 vorgesehen, von denen jedoch nur die eine ersichtlich ist. Auf die jeweilige Schraube 30 ist endseitig eine aus einem isoliermaterial bestehende Mutter 31 aufgeschraubt. Zusätzlich ist jede Schraube 30 radial von einer isolierhülse 32 umgeben.In addition to the four
Aus der Fig. 2, welche eine Draufsicht auf den Anodenkörper 4 des Brennerkopfs zeigt, sind die beiden in den Anodenkörper 4 führenden Leitungsabschnitte 11, 11a zum Zuführen des Kühlmediums ersichtlich. Die am jeweiligen Leitungsabschnitt 11, 11a fixierte Überwurfmutter 15, 15a ist im Längsschnitt dargestellt. Zwischen den beiden genannten Leitungsabschnitten 11, 11a ist der radial in den Kathodenkörper 3 führende Leitungsabschnitt 26 zum Zuführen des Plasmagases ersichtlich.From Fig. 2, which shows a plan view of the
Die Vorteile einer mechanisch auftrennbaren Schnittstelle S1, S2 in Form der vorgängig beschriebenen Schraubverbindung bestehen darin, dass sowohl eine sichere mechanische wie auch hydraulische Verbindung zwischen dem jeweiligen Leitungsabschnitt 11, 12 des Brennerkopfs 2 und der entsprechenden Leitung 17, 18 des Brennerschafts 1 hergestellt werden kann. Eine Schraubverbindung hat den weiteren Vorteil, dass durch sie, im Gegensatz zu einer Steckverbindung, eine Schnittstelle mit einem guten elektrischen Kontakt, mit geringem Übergangswiderstand und grosser Kontaktfläche gebildet wird. Ausserdem ist sie in Bezug auf Oxidation und Verschmutzung relativ unempfindlich, da allfälliger Schutz beim Festziehen der Überwurfmutter von den Kontaktflächen verdrängt wird. Dadurch wird insbesondere auch die Gefahr von parasitären Lichtbögen vermindert. Schliesslich garantiert eine Schraubverbindung auch eine hohe mechanische Stabilität, so dass auf zusätzliche mechanische Befestigungselemente verzichtet werden kann.The advantages of a mechanically separable interface S1, S2 in the form of the screw connection described above are that both a secure mechanical and hydraulic connection between the
Anstelle der beschriebenen Schraubverbindung können natürlich auch andere mechanische Schnittstellen wie beispielsweise ein Bajonettverschluss vorgesehen werden.Of course, other mechanical interfaces such as a bayonet can be provided instead of the screw described.
Claims (9)
- Plasma spray device, with a burner shank (1) and with a burner head (2) fixed releasably to the latter, a multiplicity of detachable lines (17, 18, 28, 29) running between the burner shank (1) and the burner head (2) and serving for supplying the fuels necessary for operating the burner head (2), such as plasma gas, coating powder, electrical energy and cooling liquid, electrically conductive tubular lines (17, 18) being provided for supplying the cooling liquid and for the simultaneous transmission of the electrical energy, characterized in that the lines (17, 18) are each provided with a mechanically detachable interface (S1, S2) in the form of a screw connection or of a bayonet fastening for making a positive and non-positive connection between the respective line of the burner shank (17, 18) and the matching line section (11, 12) of the burner head (2).
- Plasma spray device according to Claim 1, characterized in that the respective mechanical interface (S1, S2) is formed by a union nut (15, 16) arranged at one line end and provided with a thread (35, 36) and by an external thread (33, 34) arranged at the other line end and matching with the thread of the union nut (15, 16).
- Plasma spray device according to Claim 2, characterized in that a sleeve (19, 20), which is provided on the outside with the said external thread (33, 34), is arranged at one line end.
- Plasma spray device according to one of the preceding claims, characterized in that the burner head (2) has a cathode body (3) and an anode body (4), through which two bodies (3, 4) a cooling duct (8, 9) passes in each case, each cooling duct (8, 9) being provided in each case with an inlet and an outlet, into which a line section (11, 12) issues in each case, and a union nut (15, 16) being fixed on each line section (11, 12).
- Plasma spray device according to Claim 4, characterized in that the respective line section (11, 12) is provided on the end face with a hollow-cylindrical section (13, 14) of enlarged diameter, which serves as an abutment for the union nut (15, 16).
- Plasma spray device according to Claim 4 or 5, characterized in that an insulating disc (5) is inserted between the cathode body (3) and the anode body (4) and projects radially beyond the two bodies (3, 4).
- Plasma spray device according to one of the preceding claims, characterized in that the burner shank (1) is provided with a hollow-cylindrical front part (1a) which faces the burner head (2) and into which issue the lines (17, 18, 28, 29) provided for supplying the necessary fuels.
- Plasma spray device according to Claim 2, characterized in that both the line sections (11, 12) and the essential components of the respective mechanical interface (S1, S2) are manufactured from an electrically conductive metal, in particular from copper or brass, the respective line section (11, 12) being soldered to the cathode body (3) and to the anode body (4).
- Plasma spray device according to one of the preceding claims, characterized in that a plug connection between the burner shank (1) and the burner head (2) is provided for the lines (28, 29) provided for supplying the plasma gas and the coating powder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH20962003 | 2003-12-09 | ||
| PCT/CH2004/000616 WO2005057994A1 (en) | 2003-12-09 | 2004-10-08 | Plasma spraying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1692922A1 EP1692922A1 (en) | 2006-08-23 |
| EP1692922B1 true EP1692922B1 (en) | 2007-04-25 |
Family
ID=34658632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04761956A Expired - Lifetime EP1692922B1 (en) | 2003-12-09 | 2004-10-08 | Plasma spraying device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1692922B1 (en) |
| JP (1) | JP2007514283A (en) |
| AT (1) | ATE360975T1 (en) |
| DE (1) | DE502004003646D1 (en) |
| WO (1) | WO2005057994A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012003306A1 (en) | 2012-02-18 | 2013-08-22 | Amt Ag | Device for performing plasma coating on surface of substrate, for use in manufacturing of e.g. cylinder bore, has wire-shaped or powder material that is selectively processed in region of electrode which generates auxiliary voltage arc |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006038134B4 (en) * | 2006-08-16 | 2009-08-20 | Kjellberg Finsterwalde Plasma Und Maschinen Gmbh | Plasma burner head, plasma torch and plasma torch |
| DE102008018530B4 (en) | 2008-04-08 | 2010-04-29 | Kjellberg Finsterwalde Plasma Und Maschinen Gmbh | A nozzle for a liquid-cooled plasma torch, arrangement of the same and a nozzle cap and liquid-cooled plasma torch with such an arrangement |
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| DE4228064A1 (en) | 1992-08-24 | 1994-03-03 | Plasma Technik Ag | Plasma spray gun |
| DE59401323D1 (en) * | 1993-09-29 | 1997-01-30 | Sulzer Metco Ag | Torch head for plasma sprayers |
| JP3305185B2 (en) * | 1996-02-14 | 2002-07-22 | プラズマ技研工業株式会社 | Plasma spraying equipment |
| AT406243B (en) * | 1998-01-28 | 2000-03-27 | Inocon Technologie Gmbh | DEVICE WITH A PLASMA MACHINE |
| DE50005068D1 (en) * | 1999-06-30 | 2004-02-26 | Sulzer Metco Ag Wohlen | Plasma spray device |
| JP3443625B2 (en) * | 2000-08-10 | 2003-09-08 | 島津工業有限会社 | Water-cooled cable fitting for plasma spray torch |
| CA2356583C (en) * | 2001-03-28 | 2007-10-16 | Nippon Welding Rod Co., Ltd. | Torch for powder plasma buildup welding |
-
2004
- 2004-10-08 JP JP2006543340A patent/JP2007514283A/en active Pending
- 2004-10-08 EP EP04761956A patent/EP1692922B1/en not_active Expired - Lifetime
- 2004-10-08 AT AT04761956T patent/ATE360975T1/en not_active IP Right Cessation
- 2004-10-08 DE DE502004003646T patent/DE502004003646D1/en not_active Expired - Lifetime
- 2004-10-08 WO PCT/CH2004/000616 patent/WO2005057994A1/en active IP Right Grant
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012003306A1 (en) | 2012-02-18 | 2013-08-22 | Amt Ag | Device for performing plasma coating on surface of substrate, for use in manufacturing of e.g. cylinder bore, has wire-shaped or powder material that is selectively processed in region of electrode which generates auxiliary voltage arc |
| DE102012003306B4 (en) | 2012-02-18 | 2024-03-21 | Amt Ag | Plasma coating device |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE360975T1 (en) | 2007-05-15 |
| JP2007514283A (en) | 2007-05-31 |
| WO2005057994A1 (en) | 2005-06-23 |
| EP1692922A1 (en) | 2006-08-23 |
| DE502004003646D1 (en) | 2007-06-06 |
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