EP0933982A2 - Gerät mit einem Plasmaerzeuger - Google Patents
Gerät mit einem Plasmaerzeuger Download PDFInfo
- Publication number
- EP0933982A2 EP0933982A2 EP99890002A EP99890002A EP0933982A2 EP 0933982 A2 EP0933982 A2 EP 0933982A2 EP 99890002 A EP99890002 A EP 99890002A EP 99890002 A EP99890002 A EP 99890002A EP 0933982 A2 EP0933982 A2 EP 0933982A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cathode
- anode
- chamber
- module
- holder
- 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.)
- Granted
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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
-
- 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 plasma generator with holder, e.g. for a welding machine, according to the preamble of the claim 1.
- the cathode and the anode is usually connected to connecting cables with clamp connections and with corresponding spacers mechanically connected, which also determine the chamber over which a corresponding gas between the anode and the cathode burning arc is supplied.
- an axial feed is the Cathode and also the supply of gas provided and also the The electrical supply is connected in the axial direction the chamber.
- the plasma generator has a very large overall length.
- the plasma generator at its end area distant from the nozzle mouth clamped in a holder of a welding robot results accordingly due to the inevitable tolerances great inaccuracies in the management of the machining success and reproducibility, especially after one Change of the module, decisive mouth of the nozzle.
- plasma generators for currents of more than 1000A very large diameter of the plasma generator and hence very large masses of the same. They can also be used for such currents required cross sections of the current paths hardly reach, so that worked with very high current densities must be, which leads to a corresponding heating of the current-carrying Parts leads.
- the aim of the invention is to avoid these disadvantages and propose a device with which a largely continuous Use with high reproducibility of the settings is also possible after replacing a module.
- the proposed measures make it simple possible the plasma generator designed as a module exchange. It is sufficient to remove the module from the holder and replace with a new one. This does not apply Previously required disassembly of the connecting lines, as this connected to the contact pins arranged in the holder are.
- the cathode When manufacturing the modules, the cathode can be placed on the intended Optimized use and position be fixed. The latter can be done in any way. So can be the cathode in plasma generators with lower powers operationally inextricably linked to the holding part, e.g. be soldered in.
- the proposed measures replace the plasma generator quickly and easily.
- the structure of the module is very simple, with the possibility of the cathode after the Disassemble the module from the collet to release and regrind. It is also possible for better utilization the conical shape of the two end regions, the cone angle is adapted to the respective application.
- the adjustment of the cathode can be done after a revision of the Cathode with a specific purpose, or Use of the module coordinated setting gauges. There one such revision of the cathode after replacement of the whole Such a work does not require any work significant interruptions in production, e.g. in a Production line.
- the characteristics of the Claim 6 can be provided, the use expediently is soldered into the mouth of the anode.
- the features of claim 7 allow the anode to be simple To exchange ways, e.g. if it wears out accordingly is, or if for a specific use of the device, or certain works appropriate a different geometry of the anode is.
- FIGS. 1 and 2 is one of a electrically insulating material, e.g. Ceramics made provided essentially hollow cylindrical holder 1, in one end area of which is also made of an insulating material manufactured insert 2 is pressed.
- a electrically insulating material e.g. Ceramics made provided essentially hollow cylindrical holder 1, in one end area of which is also made of an insulating material manufactured insert 2 is pressed.
- This insert 2 is from a central, a gas supply line 3 forming tube that penetrates the front of the projecting insert 2 ends over the end face of the holder 1.
- the insert 2 also has two in a diametrical plane lying holes 4 in which serve as abutments Press-fit parts 7 are held, which in turn are held by the souls 5 of leads 6 are interspersed with play.
- connecting lines 6 are to a voltage supply, not shown connected, which is suitable in addition to that for the operating current to be performed also required the ignition pulses required for the ignition of the plasma deliver.
- compression springs 8 are supported Contact pins 9, which are soldered to the souls 5, to the outside push.
- the contact pins 9 are at their free end provided with an end face 10, which has a contact surface a plasma generator 11 cooperates in a Fastening device arranged on the end face of the holder 1 23 is held as one from an electric insulating material manufactured bracket is formed in which the plasma generator 11 is inserted from above.
- This plasma generator 11 has a connecting part 13 an electrically insulating material, e.g. Ceramics on the tapered in its lower region and has an opening 14 on its lower end face.
- an electrically insulating material e.g. Ceramics
- This opening 14 is penetrated by an annular anode 15, which in the usual way from an electrically conductive and thermally highly resilient material is made and in has a nozzle opening 16 in its mouth region.
- the anode 15 has a conically widening upwards Area that abuts the inside of the connecting part 13 and which merges into a cylindrical area.
- An intermediate part 17 is located on the upper end face of the anode 15 at the ring-shaped and made of an electric insulating material, e.g. Ceramics.
- an electrically good conductive material e.g. Copper
- an electrically good conductive material e.g. Copper
- manufactured Holding part 18 in which a cathode 19 is pressed is that of an electrically conductive and thermally highly resilient Material such as made of a tungsten-cerium oxide alloy is made and in its the nozzle opening 16 Anode 15 near end region is conical.
- the anode 15, as well as the holding part 18 are for fixing the mutual position of the cathode 10 and the nozzle opening 16 of the Anode suitably fitted into the connecting part 13.
- the anode 15, the intermediate part 17 and the holding part 18 with the pressed cathode 19 form together with the connecting part 13 a module of the device that easily in the holder installed and removed from it.
- the holding part 18 On the upper end of the holding part 18 is a an insulating material produced pressure part 20, the one the cathode 19 has clearance-receiving bore 21 and protrudes over the end face of the connecting part 13.
- This pressure part 20 acts together with a cover 22 on the an area close to the upper end face of the connecting part 13 arranged external thread 23 is screwed.
- the connecting part 13 is with three along a generatrix arranged radial bores 24, 25 provided, of which the Bores 24 the passage of the lugs 10 of the contact pins 9th enable and in the region of the holding part 18, or the anode 15 lie.
- the bore 25 is in the area of the intermediate part 17 arranged and aligned with a radially extending Inlet 26 of the intermediate part to one through the inner wall of the intermediate part 17 limited chamber 27 leads from the Cathode 19 is penetrated.
- the bore 25 is aligned when inserted in the holder 1 Plasma generator, which is constructed as a module, also with the in Holder 1 provided gas supply line 3.
- the connecting lines 6, the insulating jackets 28 with play in the holes 4 of the insert 2 of the holder 1 are guided, withdraw and the plasma generator 11 from above into the bracket 12 use. Then the connecting lines 6 can be released are and the contact pins 9 snap into the holes 24 of the connecting part 13 and secure the position of the Plasma generator 11 in the holder 1. At the same time with their end faces by means of the springs 8 on the holding part 8, or pressed the anode 15 and so a good electrical contact manufactured.
- a gas for example helium, CO 2 and the like, is introduced into the chamber 27 via the gas supply line 3, which flows around the cathode 19 and simultaneously cools it during operation. This gas flows out through the nozzle opening 16.
- the module is built Plasma generator 11 simply replaced and with a new one replaced.
- the exchanged plasma generator 11 can then one Recycle processes are fed.
- a holder 1 ' is provided, the holes 4 'for receiving the contact pins 9' has, wherein the contact pins 9 'pierced in the axial direction are.
- the rear end of the contact pins 9 ' is for the connection of Hoses formed through which cooling water can be supplied.
- a gas supply line 3 ' is held in the holder 1', which, as can be seen from FIG. 4, over a radial Channel 32, which is closed to the outside with a grub screw 33 , and an axial bore 34 opening into this, in of which a hose nozzle 35 is screwed in with a gas hose 36 is connected via the one for generating the plasma required gas can be supplied.
- the contact pins 9 ' protrude in its spring-loaded rest position over the end face 38 of the holder 1 'and engage in the outer surface of a as Module constructed plasma generator 11 '.
- the plasma generator 11 'constructed as a module is by means of a Pipe clamp 40 held on the front side 38 of the holder 1 'held fixed part with pins 42 is held.
- the pipe clamp 40 has a joint 43, the axis of which is perpendicular runs to the axis of the holder 1 '.
- the holding part 18' of the cathode 19 ' formed by a collet that is made of an electrically good conductive material is made.
- This collet is common Way held in a transducer 44 which is in a contact part 45 is screwed in.
- This contact part 45 is provided with a coolant chamber 46, via a radial channel 47 with a connection opening 48 is connected.
- This connection opening 48 is aligned with the plasma generator 11 'mounted in the holder 1' with the contact pins 9 '.
- a clamping nut is used for clamping and releasing the collet 18 ' 49 provided via two seals 50 on the upper End face of the receptacle 44 is supported, causing an exit of coolant is avoided, the receptacle 44 to seal the coolant chamber 46 also via a Seal 51 is supported on the contact part 45.
- an O-ring 52 is provided which is in a groove of a bore 53 is inserted, which is penetrated by the receptacle 44.
- This Stop 91 has a smooth head 94, in which a circumferential Groove for receiving an O-ring 95 is incorporated, the serves to seal the inside of the collet 18'd.
- a counter nut 92 is provided which at the same time for a non-rotatable connection between the stop 91, on which the cathode 19 'rests, and the clamping nut 49 cares.
- the stop 91 ensures that when the Collet no longer removes the cathode 19 'from the collet 18' can be moved axially with respect to the anode 15 'because the clamping nut 49 rests against the end face of the contact part 45 and the anode 15 'is fixed relative to this.
- the contact part 45 which is used to contact the cathode 19 ' serves, lies with the interposition of a seal 54 on a Intermediate part 55, which is made of an electrically insulating material, such as. Ceramics.
- This intermediate part 55 determines the chamber 27 'with a radial channel 56 a connection opening 57 is connected.
- the radial channels 47 and 56 are circumferential Provide grooves 58 in which O-rings 59 are arranged. This are used to seal the contact pins engaging in these channels 9 'or the gas supply line 3'.
- a distribution ring 59' is arranged, which with Provide bores 60 distributed over the circumference, whose diameter increases in both directions of rotation increasing angle to the radial channel 56 is increased.
- the intermediate part 55 is via a seal 62 on an anode contact part 63 supported.
- anode contact part 63 is a clamping sleeve 64 screwed into an internal thread 65, wherein a seal 66 between the anode contact part 63 and the End face of the clamping sleeve 64 is interposed.
- the clamping sleeve 64 has a conical one end Contact surface 67 on which an opposite conical Shell surface 68 of a head 69 of an anode 15 'abuts as well as the adapter sleeve 64 and the anode contact part 63 an electrically good conductive material is made.
- the anode 15 lies with its end facing away from the head 69 a further head 70, with the interposition of a seal 71 rests on a shoulder of the anode contact part 63.
- the anode 15 'passes through a coolant chamber 46 of the Anode contact part 63.
- the anode 15 ' is pierced in the axial direction, wherein in this bore 72 a sleeve 73 is inserted, which consists of a electrically insulating material, e.g. Ceramics and is penetrated by the cathode 19 '.
- a sleeve 73 which consists of a electrically insulating material, e.g. Ceramics and is penetrated by the cathode 19 '.
- a centering sleeve 74 used in the 7 is shown in more detail and on guide ribs 89 provided guide surfaces 75 on the outer surface of the cathode 19 'concern.
- the anode 15 'points radially protruding guide ribs 76 which, as shown in FIG is seen from the one having a hexagonal cross section Anode 15 'extend to the inner wall of the clamping sleeve 64 and are perpendicular to the axis of the radial channel 47.
- the guide ribs 76 extend away from the head 70 against the Head 69 of the anode 15 ', but between the head 69 and a flow path 77 remains in the guide ribs 76.
- the two coolant chambers 46 of the contact part 45 and the Anode contact part 63 are connected to one another via an overflow channel 78 connected.
- This overflow channel 78 consists essentially of axial Bores 79 in the contact part 45, or the anode contact part 63 and radial, 47 coaxial to the radial channels Bores 80 together, which open into the axial bores 79.
- the intermediate part 55 is one with the axial Bores 79 provided aligned bore 81.
- An insert 83 is provided in the mouth area of the anode 15 ', which is made of a wear-resistant material, e.g. is made of a tungsten cerium oxide alloy.
- the two contact parts 45 and 63 are made of rings 84 from one surrounded electrically insulated material, or these sit on Collars 85 on.
- gas for example helium, CO 2 or the like
- gas for example helium, CO 2 or the like
- an arc is ignited between the cathode 19' and the anode 15 'by a high voltage pulse.
- the plasma which is formed in this way emerges through the nozzle opening 16 '.
- the cathode 19 ' is conical at both ends.
- the two contact parts 45 and 63 and the intermediate part 55 are by means of the screws 87 shown in FIG. 4 connected and represent the connecting parts through which a modular structure of the plasma generator 11 'is ensured is.
- the cathode 19 ' can be used as a module trained plasma generator 11 'by loosening the clamping screw 88 and opening the pipe clamp 40 are removed, after which the clamping nut 49 loosened and the cathode 19 'from the Collet can be removed. Then the cathode turned, or the tapered ends are reground. Subsequently can the cathode with respect to the anode 15 ' an apprenticeship is discontinued. Then the stop 91 with the collet 18 'open and then the cathode 19 'by means of the clamping nut 49 in the collet 18' fixed again, after which the module 11 'are reassembled can.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Geometry (AREA)
- Plasma Technology (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
Description
Claims (13)
- Plasmaerzeuger mit Halter, wobei der Plasmaerzeuger (11, 11') eine nicht verzehrende Kathode (19, 19') aufweist, die eine mit einem Gasanschluß verbundene Kammer (27, 27') durchsetzt und mit einem elektrischen Anschluß in Verbindung steht und in einem aus einem elektrisch gut leitenden Material hergestellten Halteteil (18, 18') gehalten ist, wobei der Halteteil (18, 18') und eine einen Endbereich der Kathode (19, 19') mit einem Ringspalt umschließende ringförmigen Anode (15, 15') mit Kontaktflächen in elektrisch leitender Verbindung stehen, die mit Kontaktstiften (9, 9') zusammenwirken, die mit elektrischen Anschlußleitungen (6) verbunden sind, und eine koaxial mit der Kathode (19, 19') ausgerichtete Bohrung der Anode (15, 15'), die mit der Kathode (19, 19') elektrisch isoliert in mechanischer Verbindung steht, eine mit der Kammer (27, 27') verbundene Düse (16, 16') begrenzt und die Anode (15, 15') gemeinsam mit einem die Kammer (27, 27') begrenzenden Zwischenteil (17, 55) und zumindest einem Verbindungsteil (13, 87) zu einem als Einheit handhabbaren Modul (11, 11') verbunden sind dadurch gekennzeichnet, daß der Halteteil (18, 18') mit der Kathode (19, 19') ebenfalls Teil des Moduls (11, 11') ist und gemeinsam mit diesem handhabbar ist, wobei der Modul in einem Halter (1, 1') einspannbar ist, dessen Achse im wesentlichen senkrecht zur Achse der Kathode (19, 19') steht und in dem die Kontaktstifte (9, 9') axial federnd verschiebbar gehalten sind, wobei der Halter (1, 1') eine lösbare Befestigungseinrichtung (12, 40) zur Aufnahme des Moduls (11, 11') und eine Gaszuführleitung (3, 3') aufweist, die bei montiertem Modul (11, 11') mit einem radial verlaufenden Einlaß (26, 56) der Kammer (27, 27') fluchtet.
- Gerät nach Anspruch 1, dadurch gekennzeichnet, daß sich die Anode (15) zumindest in einem an ihren Düsenbereich unmittelbar anschließenden Bereich konisch erweitert und mit ihrer einen Stirnseite an einem elektrisch isolierenden und den Einlaß (26) der Kammer (27) aufweisenden Zwischenteil (17) anliegt, an dessen zweiter Stirnseite, der Halteteil (18) der Kathode (19) anliegt, an dem ein aus einem Isoliermaterial hergestellter Druckteil (20) anliegt, und diese Teile von einem Verbindungsteil (13) außen umschlossen sind, der aus einem elektrisch isolierenden Material hergestellt ist und auf den ein Deckel (22) aufschraubbar ist, der gegen den Druckteil (20) drückt.
- Gerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Halter (1) zur Aufnahme des Moduls (11) einen Bügel (12) aufweist und zur Sicherung der axialen Lage des Moduls (11) in dem Bügel (12) die Kontaktstifte (9) vorgesehen sind, die bei in den Bügel (12) eingesetztem Modul radiale Bohrungen (24) dessen Verbindungsteiles (13) durchsetzen, wobei der Verbindungsteil (13) weiters eine mit dem radial verlaufenden Einlaß (26) der Kammer (27) fluchtende radiale Bohrung (25) aufweist, die bei im Halter (1) montiertem Modul (11) mit der Gaszuführleitung (3) des Halters (1) fluchtet.
- Gerät nach Anspruch 1, bei dem zumindest eine von einem Kühlmedium, insbesondere Wasser, durchströmbare Kühlkammer (46) vorgesehen ist, dadurch gekennzeichnet, daß der Halteteil (18') der Kathode (19') durch eine Spannzange gebildet ist, deren Aufnehmer (44) in einen eine Kühlmittelkammer (46) aufweisenden Kontaktteil (45) eingesetzt ist, an dessen einer Stirnseite ein die von der Kathode (19') durchsetzte Kammer (27') begrenzender Zwischenteil (55) aus einem Isoliermaterial anliegt, an dessen zweiter Stirnseite ein die Anode (15') zumindest mittelbar haltender und eine weitere Kühlmittelkammer (46) aufweisender Anoden-Kontaktteil (63) anliegt, der von der Kathode (19') durchsetzt ist, wobei die beiden Kontaktteile (45, 63) und der Zwischenteil (55) in axialer Richtung zum Modul (11') zusammengespannt sind und die Anode (15') in die Kühlmittelkammer (46) hineinragt, und die beiden Kühlmittelkammern (46) und die Kammer (27') des Zwischenteiles (55) über radial verlaufende Kanäle (47, 56) mit Anschlußöffnungen (48, 57) verbunden sind, die bei in einem Halter (1') eingesetzten Modul (11') mit im Halter (1') angeordneten Zu- bzw. Ableitungen fluchten.
- Gerät nach Anspruch 4, dadurch gekennzeichnet, daß in die durchgehende axiale Bohrung (72) der Anode (15') eine bis in die Kammer (27') des Zwischenteiles (55) reichende und die dieser zugekehrte Stirnseite der Anode (15') überragende Hülse (73) aus einem elektrisch isolierenden Material, vorzugsweise Keramik eingesetzt ist, welche die Kathode (19') mit Spiel umgibt und nahe der freien Stirnseite der Anode (15') eine Zentrierhülse (74) aus einem elektrisch isolierendem Material, vorzugsweise Keramik, eingesetzt ist, deren nach innen gerichteten Führungsrippen (89) an der Kathode (19') anliegen.
- Gerät nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß im Mündungsbereich der Anode (15') ein Einsatz (83), vorzugsweise aus einer Wolframlegierung, z.B. einer Wolfram-Thorium-Legierung, eingesetzt ist.
- Gerät nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß Anode (15') in ihrem ihrer Mündung (16') nahen Bereich einen Kopf (69) mit im wesentlichen konischer Mantelfläche (68) aufweist, die an einer im wesentlichen gegengleichen Spannhülse (64) anliegt, die in den Anoden-Kontaktteil (63) einschraubbar ist und dessen Kühlmittelkammer (46) zumindest teilweise begrenzt.
- Gerät nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die beiden Kühlmittelkammern (46) über einen den Zwischenteil (55) durchsetzenden Überströmkanal (78) miteinander verbunden sind.
- Gerät nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, daß die Anode (15') mit im wesentlichen diagonal nach außen abstehenden und sich bis zur Innenwand der Kühlmittelkammer (46) erstreckenden Leitrippen (76) versehen ist, die zwischen dem Überströmkanal (78) und dem zur Anschlußöffnung (48) führenden Kanal (47) angeordnet sind und sich über einen Teil der axialen Ausdehnung der Kühlmittelkammer (46) erstrecken.
- Gerät nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, daß die Zu- und Ableitungen für das Kühlmittel durch hohle, federbelastete Kontaktstifte (9') gebildet sind die im Halter (1') axial verschiebbar gehalten sind und bei montiertem Modul (11') in Erweiterungen der Kanäle (47) eingreifen.
- Gerät nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, daß der Halter (1') eine Rohrschelle (40) zur Aufnahme des Moduls (11') aufweist.
- Gerät nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß in der Kammer (27') ein Verteilring (59') angeordnet ist, der einen Ringraum um die Kathode (19') begrenzt und zumindest über einen Teil seiner äußeren Mantelfläche von einem zwischen der Innenwand der Kammer (27') verbleibenden Ringraum (61) umgeben ist und mit über den Umfang verteilt angeordneten radialen Bohrungen (60) versehen ist, deren Durchmesser sich mit in beiden Drehrichtungen größer werdender Winkellage in Bezug auf den zur Kammer (27') führenden Kanal (56) vergrößert.
- Gerät nach einem der Ansprüche 4 bis 12, dadurch gekennzeichnet, daß die Spannmutter (49) mit einer durchgehenden Gewindebohrung (90) versehen ist, in die ein Anschlag (91) eingeschraubt ist, der in die Spannzange (18') hineinragt und an dem die Kathode (19') anliegt, wobei der Anschlag in der Spannmutter (49) fixierbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0013598A AT406243B (de) | 1998-01-28 | 1998-01-28 | Gerät mit einem plasmaerzeuger |
AT13598 | 1998-01-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0933982A2 true EP0933982A2 (de) | 1999-08-04 |
EP0933982A3 EP0933982A3 (de) | 2002-05-08 |
EP0933982B1 EP0933982B1 (de) | 2006-10-25 |
Family
ID=3482461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99890002A Expired - Lifetime EP0933982B1 (de) | 1998-01-28 | 1999-01-08 | Gerät mit einem Plasmaerzeuger |
Country Status (7)
Country | Link |
---|---|
US (1) | US6080955A (de) |
EP (1) | EP0933982B1 (de) |
AT (1) | AT406243B (de) |
CA (1) | CA2260505C (de) |
CZ (1) | CZ296337B6 (de) |
DE (1) | DE59913939D1 (de) |
ES (1) | ES2273471T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220104337A1 (en) * | 2018-11-30 | 2022-03-31 | Oerlikon Metco (Us) Inc. | Electrode for plasma a gun |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6320156B1 (en) * | 1999-05-10 | 2001-11-20 | Komatsu Ltd. | Plasma processing device, plasma torch and method for replacing components of same |
US6424082B1 (en) | 2000-08-03 | 2002-07-23 | Hypertherm, Inc. | Apparatus and method of improved consumable alignment in material processing apparatus |
US6958513B2 (en) * | 2003-06-06 | 2005-10-25 | Chih-Hsin Wang | Floating-gate memory cell having trench structure with ballistic-charge injector, and the array of memory cells |
WO2005057994A1 (de) * | 2003-12-09 | 2005-06-23 | Amt Ag | Plasmaspritzvorrichtung |
US20070045241A1 (en) * | 2005-08-29 | 2007-03-01 | Schneider Joseph C | Contact start plasma torch and method of operation |
US9480138B2 (en) | 2007-08-06 | 2016-10-25 | Hypertherm, Inc. | Articulating thermal processing torches and related systems and methods |
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DE3400281A1 (de) * | 1984-01-05 | 1985-07-18 | Wilhelm Merkle Schweißmaschinenbau GmbH, 8871 Kötz | Plasmaschneidbrenner |
US4692584A (en) * | 1985-11-29 | 1987-09-08 | Caneer Jr Clifford | Gas control system for a plasma arc welding apparatus |
US5328516A (en) * | 1992-08-24 | 1994-07-12 | Plasma-Technik Ag | Modular plasma gun assembly for coating the inner surfaces of hollow spaces and cavities |
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DE8132660U1 (de) * | 1981-11-07 | 1983-04-28 | Haferkamp, Heinz, Prof. Dr.-Ing., 3340 Wolfenbüttel | Plasma-Schneidbrenner |
FR2562748B1 (fr) * | 1984-04-04 | 1989-06-02 | Soudure Autogene Francaise | Torche de soudage ou coupage a plasma |
US4582979A (en) * | 1984-09-10 | 1986-04-15 | Moerke Delford A | Arc welding system and docking assembly therefor |
US4939339A (en) * | 1989-04-03 | 1990-07-03 | Fmc Corporation | Apparatus for quick disconnect of an arc welder torch |
US5074802A (en) * | 1989-09-12 | 1991-12-24 | Hypertherm, Inc. | Pneumatic-electric quick disconnect connector for a plasma arc torch |
US5258599A (en) * | 1991-08-05 | 1993-11-02 | Moerke Delford A | Convertible arc welding system |
US5214262A (en) * | 1992-04-03 | 1993-05-25 | Esab Welding Products, Inc. | Electrode adaptor |
FR2698301B1 (fr) * | 1992-11-20 | 1994-12-23 | Soudure Autogene Francaise | Torche de coupage plasma. |
US5451739A (en) * | 1994-08-19 | 1995-09-19 | Esab Group, Inc. | Electrode for plasma arc torch having channels to extend service life |
US5624586A (en) * | 1995-01-04 | 1997-04-29 | Hypertherm, Inc. | Alignment device and method for a plasma arc torch system |
KR100272916B1 (ko) * | 1995-01-31 | 2000-11-15 | 안자키 사토루 | 가공용 토치 |
US5681489A (en) * | 1995-12-13 | 1997-10-28 | The Esab Group, Inc. | Plasma arc torch including means for disabling power source |
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1998
- 1998-01-28 AT AT0013598A patent/AT406243B/de not_active IP Right Cessation
-
1999
- 1999-01-04 CZ CZ0000899A patent/CZ296337B6/cs not_active IP Right Cessation
- 1999-01-08 DE DE59913939T patent/DE59913939D1/de not_active Expired - Lifetime
- 1999-01-08 EP EP99890002A patent/EP0933982B1/de not_active Expired - Lifetime
- 1999-01-08 ES ES99890002T patent/ES2273471T3/es not_active Expired - Lifetime
- 1999-01-12 US US09/228,989 patent/US6080955A/en not_active Expired - Lifetime
- 1999-01-27 CA CA002260505A patent/CA2260505C/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3400281A1 (de) * | 1984-01-05 | 1985-07-18 | Wilhelm Merkle Schweißmaschinenbau GmbH, 8871 Kötz | Plasmaschneidbrenner |
US4692584A (en) * | 1985-11-29 | 1987-09-08 | Caneer Jr Clifford | Gas control system for a plasma arc welding apparatus |
US5328516A (en) * | 1992-08-24 | 1994-07-12 | Plasma-Technik Ag | Modular plasma gun assembly for coating the inner surfaces of hollow spaces and cavities |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220104337A1 (en) * | 2018-11-30 | 2022-03-31 | Oerlikon Metco (Us) Inc. | Electrode for plasma a gun |
Also Published As
Publication number | Publication date |
---|---|
CZ9900008A3 (en) | 2001-06-13 |
EP0933982A3 (de) | 2002-05-08 |
ES2273471T3 (es) | 2007-05-01 |
ATA13598A (de) | 1999-08-15 |
AT406243B (de) | 2000-03-27 |
DE59913939D1 (de) | 2006-12-07 |
US6080955A (en) | 2000-06-27 |
CA2260505A1 (en) | 1999-07-28 |
CA2260505C (en) | 2007-12-04 |
CZ296337B6 (cs) | 2006-02-15 |
EP0933982B1 (de) | 2006-10-25 |
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