CA2386663A1 - Process of forming an electrode - Google Patents
Process of forming an electrode Download PDFInfo
- Publication number
- CA2386663A1 CA2386663A1 CA002386663A CA2386663A CA2386663A1 CA 2386663 A1 CA2386663 A1 CA 2386663A1 CA 002386663 A CA002386663 A CA 002386663A CA 2386663 A CA2386663 A CA 2386663A CA 2386663 A1 CA2386663 A1 CA 2386663A1
- Authority
- CA
- Canada
- Prior art keywords
- separator
- emissive element
- emissive
- electrode
- copper 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- 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
- H05H1/3442—Cathodes with inserted tip
Abstract
A method of forming an electrode for a plasma arc torch is disclosed, and wherein the electrode comprises a copper holder defining an opening therein.
An emissive element is secured to a cavity formed in a relatively non-emissive separator having a solid rear wall at one end thereof. The emissive element and separator are positioned within the opening defined by the copper holder such that the emissive element is surrounded by the separator and the copper holder. In this regard, the emissive element is prevented from movement along the longitudinal axis of the torch relative to the separator during a post-assembly heating step. In addition, the emissive element is not exposed to the atmosphere during the heating step, which allows a greater bond between the emissive element and the separator.
An emissive element is secured to a cavity formed in a relatively non-emissive separator having a solid rear wall at one end thereof. The emissive element and separator are positioned within the opening defined by the copper holder such that the emissive element is surrounded by the separator and the copper holder. In this regard, the emissive element is prevented from movement along the longitudinal axis of the torch relative to the separator during a post-assembly heating step. In addition, the emissive element is not exposed to the atmosphere during the heating step, which allows a greater bond between the emissive element and the separator.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/870,896 | 2001-05-31 | ||
US09/870,896 US6423922B1 (en) | 2001-05-31 | 2001-05-31 | Process of forming an electrode |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2386663A1 true CA2386663A1 (en) | 2002-11-30 |
CA2386663C CA2386663C (en) | 2006-04-25 |
Family
ID=25356281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002386663A Expired - Fee Related CA2386663C (en) | 2001-05-31 | 2002-05-16 | Process of forming an electrode |
Country Status (5)
Country | Link |
---|---|
US (1) | US6423922B1 (en) |
EP (1) | EP1272013A3 (en) |
JP (1) | JP3708063B2 (en) |
KR (1) | KR100491691B1 (en) |
CA (1) | CA2386663C (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6563075B1 (en) * | 2001-12-20 | 2003-05-13 | The Esab Group, Inc. | Method of forming an electrode |
US20050029234A1 (en) * | 2003-08-04 | 2005-02-10 | Feng Lu | Resistance spot welding electrode |
US20070045241A1 (en) * | 2005-08-29 | 2007-03-01 | Schneider Joseph C | Contact start plasma torch and method of operation |
US20070173907A1 (en) * | 2006-01-26 | 2007-07-26 | Thermal Dynamics Corporation | Hybrid electrode for a plasma arc torch and methods of manufacture thereof |
TW201231201A (en) * | 2011-01-31 | 2012-08-01 | Wen-Yi Fang | Electrode head of the plasma cutting machine |
CN102423823B (en) * | 2011-10-09 | 2013-04-10 | 上海工程技术大学 | Vacuum brazing process of plasma cutting electrode |
US9949356B2 (en) * | 2012-07-11 | 2018-04-17 | Lincoln Global, Inc. | Electrode for a plasma arc cutting torch |
US9313871B2 (en) | 2013-07-31 | 2016-04-12 | Lincoln Global, Inc. | Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch and improved torch design |
US9338872B2 (en) | 2013-07-31 | 2016-05-10 | Lincoln Global, Inc. | Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch |
US9386679B2 (en) | 2013-07-31 | 2016-07-05 | Lincoln Global, Inc. | Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch using a multi-thread connection |
US9560733B2 (en) | 2014-02-24 | 2017-01-31 | Lincoln Global, Inc. | Nozzle throat for thermal processing and torch equipment |
US9572243B2 (en) | 2014-05-19 | 2017-02-14 | Lincoln Global, Inc. | Air cooled plasma torch and components thereof |
US9572242B2 (en) | 2014-05-19 | 2017-02-14 | Lincoln Global, Inc. | Air cooled plasma torch and components thereof |
US9398679B2 (en) | 2014-05-19 | 2016-07-19 | Lincoln Global, Inc. | Air cooled plasma torch and components thereof |
US9736917B2 (en) | 2014-08-21 | 2017-08-15 | Lincoln Global, Inc. | Rotatable plasma cutting torch assembly with short connections |
US9730307B2 (en) * | 2014-08-21 | 2017-08-08 | Lincoln Global, Inc. | Multi-component electrode for a plasma cutting torch and torch including the same |
US9681528B2 (en) | 2014-08-21 | 2017-06-13 | Lincoln Global, Inc. | Rotatable plasma cutting torch assembly with short connections |
US9686848B2 (en) | 2014-09-25 | 2017-06-20 | Lincoln Global, Inc. | Plasma cutting torch, nozzle and shield cap |
US9457419B2 (en) | 2014-09-25 | 2016-10-04 | Lincoln Global, Inc. | Plasma cutting torch, nozzle and shield cap |
DE102016010341A1 (en) | 2015-08-28 | 2017-03-02 | Lincoln Global, Inc. | PLASMABRENNER AND COMPONENTS OF PLASMABENENNER |
US10863610B2 (en) | 2015-08-28 | 2020-12-08 | Lincoln Global, Inc. | Plasma torch and components thereof |
US10639748B2 (en) | 2017-02-24 | 2020-05-05 | Lincoln Global, Inc. | Brazed electrode for plasma cutting torch |
USD861758S1 (en) | 2017-07-10 | 2019-10-01 | Lincoln Global, Inc. | Vented plasma cutting electrode |
US10589373B2 (en) | 2017-07-10 | 2020-03-17 | Lincoln Global, Inc. | Vented plasma cutting electrode and torch using the same |
US11678428B2 (en) | 2019-08-02 | 2023-06-13 | The Esab Group, Inc. | Method of assembling an electrode |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL290760A (en) | 1962-03-30 | |||
US3930139A (en) | 1974-05-28 | 1975-12-30 | David Grigorievich Bykhovsky | Nonconsumable electrode for oxygen arc working |
US4056644A (en) | 1975-10-09 | 1977-11-01 | Howard Alfred S | Method of coating annular surfaces |
SE426215B (en) | 1978-05-11 | 1982-12-20 | Vni Pk I Tech Inst Elektrosvar | NON-MELTING ELECTRODES FOR PLASMA BAKING WELDING AND PROCEDURES FOR PRODUCING THEREOF |
JPS6051972B2 (en) * | 1978-10-04 | 1985-11-16 | 株式会社東芝 | Manufacturing method of electrode material for electrical discharge machining |
SE452862B (en) | 1985-06-05 | 1987-12-21 | Aga Ab | LIGHT BAGS LEAD |
DE3635369A1 (en) | 1986-10-17 | 1988-04-28 | Degussa | METHOD FOR COATING SURFACES WITH HARD MATERIALS |
JPS63248538A (en) * | 1987-04-03 | 1988-10-14 | Mitsubishi Heavy Ind Ltd | Manufacture of plasma torch |
JPH0747223B2 (en) | 1987-09-22 | 1995-05-24 | トヨタ自動車株式会社 | Electrode tip for resistance welding |
DE3904213C1 (en) | 1989-02-13 | 1990-04-05 | Hoesch Stahl Ag, 4600 Dortmund, De | |
US5004888A (en) * | 1989-12-21 | 1991-04-02 | Westinghouse Electric Corp. | Plasma torch with extended life electrodes |
US5023425A (en) | 1990-01-17 | 1991-06-11 | Esab Welding Products, Inc. | Electrode for plasma arc torch and method of fabricating same |
US5097111A (en) | 1990-01-17 | 1992-03-17 | Esab Welding Products, Inc. | Electrode for plasma arc torch and method of fabricating same |
JP2917435B2 (en) * | 1990-06-26 | 1999-07-12 | 株式会社ダイヘン | Electrode for plasma arc machining and method of manufacturing the same |
EP0465109B1 (en) * | 1990-06-26 | 1995-03-01 | Daihen Corporation | Electrode for use in plasma arc working torch |
JPH06650A (en) * | 1992-06-23 | 1994-01-11 | Kobe Steel Ltd | Contact chip and its production |
JP2591371Y2 (en) | 1993-02-24 | 1999-03-03 | 株式会社小松製作所 | Plasma arc torch |
US5670248A (en) | 1994-07-15 | 1997-09-23 | Lazarov; Miladin P. | Material consisting of chemical compounds, comprising a metal from group IV A of the periodic system, nitrogen and oxygen, and process for its preparation |
US5851678A (en) | 1995-04-06 | 1998-12-22 | General Electric Company | Composite thermal barrier coating with impermeable coating |
JPH08288095A (en) | 1995-04-19 | 1996-11-01 | Komatsu Ltd | Electrode for plasma arc torch |
US5857888A (en) | 1996-10-28 | 1999-01-12 | Prometron Technics Corp. | Method of manufacturing a plasma torch eletrode |
US5767478A (en) | 1997-01-02 | 1998-06-16 | American Torch Tip Company | Electrode for plasma arc torch |
US5676864A (en) | 1997-01-02 | 1997-10-14 | American Torch Tip Company | Electrode for plasma arc torch |
WO1999012693A1 (en) | 1997-09-10 | 1999-03-18 | The Esab Group, Inc. | Electrode with emissive element having conductive portions |
US6020572A (en) * | 1998-08-12 | 2000-02-01 | The Esab Group, Inc. | Electrode for plasma arc torch and method of making same |
-
2001
- 2001-05-31 US US09/870,896 patent/US6423922B1/en not_active Expired - Fee Related
-
2002
- 2002-04-24 EP EP02252891A patent/EP1272013A3/en not_active Withdrawn
- 2002-05-09 KR KR10-2002-0025514A patent/KR100491691B1/en not_active IP Right Cessation
- 2002-05-16 CA CA002386663A patent/CA2386663C/en not_active Expired - Fee Related
- 2002-05-29 JP JP2002155013A patent/JP3708063B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1272013A2 (en) | 2003-01-02 |
JP2003051399A (en) | 2003-02-21 |
JP3708063B2 (en) | 2005-10-19 |
EP1272013A3 (en) | 2006-06-14 |
KR20020091777A (en) | 2002-12-06 |
CA2386663C (en) | 2006-04-25 |
KR100491691B1 (en) | 2005-05-25 |
US6423922B1 (en) | 2002-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |