CS427790A3 - Method of plasma arc torch start-up - Google Patents

Method of plasma arc torch start-up Download PDF

Info

Publication number
CS427790A3
CS427790A3 CS904277A CS427790A CS427790A3 CS 427790 A3 CS427790 A3 CS 427790A3 CS 904277 A CS904277 A CS 904277A CS 427790 A CS427790 A CS 427790A CS 427790 A3 CS427790 A3 CS 427790A3
Authority
CS
Czechoslovakia
Prior art keywords
electrode
oxidizing gas
plasma arc
discharge end
nozzle
Prior art date
Application number
CS904277A
Other languages
Czech (cs)
English (en)
Inventor
Wayne Stanley Severance Jr
Tommie Zack Turner
Original Assignee
Esab Welding Products Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Esab Welding Products Inc filed Critical Esab Welding Products Inc
Publication of CS427790A3 publication Critical patent/CS427790A3/cs

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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
    • 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
    • B23K10/02—Plasma welding
    • 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
    • B23K9/00—Arc welding or cutting
    • 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
    • H05H1/3405—Arrangements for stabilising or constricting the arc, e.g. by an additional gas flow
    • 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
    • H05H1/3468—Vortex generators
    • 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
    • H05H1/3421—Transferred arc or pilot arc mode
    • 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
    • H05H1/3436—Hollow cathodes with internal coolant flow
    • 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
    • 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
    • H05H1/3452—Supplementary electrodes between cathode and anode, e.g. cascade

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma Technology (AREA)
  • Discharge Heating (AREA)
  • Arc Welding Control (AREA)
  • Arc Welding In General (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Discharge Lamp (AREA)
  • Gas-Filled Discharge Tubes (AREA)
CS904277A 1990-03-02 1990-09-03 Method of plasma arc torch start-up CS427790A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/487,747 US5017752A (en) 1990-03-02 1990-03-02 Plasma arc torch starting process having separated generated flows of non-oxidizing and oxidizing gas

Publications (1)

Publication Number Publication Date
CS427790A3 true CS427790A3 (en) 1992-09-16

Family

ID=23936957

Family Applications (1)

Application Number Title Priority Date Filing Date
CS904277A CS427790A3 (en) 1990-03-02 1990-09-03 Method of plasma arc torch start-up

Country Status (19)

Country Link
US (1) US5017752A (fi)
EP (1) EP0444344B1 (fi)
JP (1) JPH03258464A (fi)
KR (1) KR930005953B1 (fi)
CN (1) CN1027215C (fi)
AT (1) ATE121257T1 (fi)
AU (1) AU624051B2 (fi)
BR (1) BR9004874A (fi)
CA (1) CA2023991C (fi)
CS (1) CS427790A3 (fi)
DE (1) DE69018611T2 (fi)
DK (1) DK0444344T3 (fi)
FI (1) FI904183A (fi)
HU (1) HUT58580A (fi)
IE (1) IE903018A1 (fi)
IL (1) IL95514A (fi)
NO (1) NO903751L (fi)
PL (1) PL287579A1 (fi)
ZA (1) ZA906797B (fi)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396043A (en) * 1988-06-07 1995-03-07 Hypertherm, Inc. Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US5070227A (en) * 1990-04-24 1991-12-03 Hypertherm, Inc. Proceses and apparatus for reducing electrode wear in a plasma arc torch
US5166494A (en) * 1990-04-24 1992-11-24 Hypertherm, Inc. Process and apparatus for reducing electrode wear in a plasma arc torch
US5695662A (en) * 1988-06-07 1997-12-09 Hypertherm, Inc. Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US4954688A (en) * 1989-11-01 1990-09-04 Esab Welding Products, Inc. Plasma arc cutting torch having extended lower nozzle member
CA2081459A1 (en) * 1990-04-24 1991-10-25 Richard W. Couch, Jr. Swirl ring and flow control process for a plasma arc torch
JP3112116B2 (ja) * 1991-03-20 2000-11-27 株式会社小松製作所 プラズマ切断機及びその制御方法
US5290995A (en) * 1991-12-20 1994-03-01 Esab Welding Products, Inc. Plasma arc cutting system having fluid metering and power control systems
US5317126A (en) * 1992-01-14 1994-05-31 Hypertherm, Inc. Nozzle and method of operation for a plasma arc torch
US5414237A (en) * 1993-10-14 1995-05-09 The Esab Group, Inc. Plasma arc torch with integral gas exchange
US5506384A (en) * 1994-04-21 1996-04-09 Kabushiki Kaisha Komatsu Seisakusho Plasma arc cutting machine with variable constant current source and variable resistor
US5620617A (en) * 1995-10-30 1997-04-15 Hypertherm, Inc. Circuitry and method for maintaining a plasma arc during operation of a plasma arc torch system
US5760363A (en) * 1996-09-03 1998-06-02 Hypertherm, Inc. Apparatus and method for starting and stopping a plasma arc torch used for mechanized cutting and marking applications
FR2777214B1 (fr) * 1998-04-09 2000-05-19 Soudure Autogene Francaise Torche et procede de coupage ou soudage a l'arc electrique
US6498317B2 (en) 1998-10-23 2002-12-24 Innerlogic, Inc. Process for operating a plasma arc torch
US6677551B2 (en) 1998-10-23 2004-01-13 Innerlogic, Inc. Process for operating a plasma arc torch
US6163009A (en) * 1998-10-23 2000-12-19 Innerlogic, Inc. Process for operating a plasma arc torch
US6326583B1 (en) 2000-03-31 2001-12-04 Innerlogic, Inc. Gas control system for a plasma arc torch
US6121570A (en) 1998-10-28 2000-09-19 The Esab Group, Inc. Apparatus and method for supplying fluids to a plasma arc torch
JP3666789B2 (ja) 1999-04-30 2005-06-29 株式会社小松製作所 プラズマ切断方法、装置及びプラズマ切断トーチへのガス供給系統
JP2001150143A (ja) 1999-11-26 2001-06-05 Komatsu Sanki Kk プラズマ加工用の電極及びプラズマ加工機
US6232574B1 (en) * 2000-01-13 2001-05-15 The Esab Group, Inc. Method and apparatus for improving plasma ARC consumable life
US6337460B2 (en) 2000-02-08 2002-01-08 Thermal Dynamics Corporation Plasma arc torch and method for cutting a workpiece
US6947802B2 (en) * 2000-04-10 2005-09-20 Hypertherm, Inc. Centralized control architecture for a laser materials processing system
US6359251B1 (en) 2000-04-10 2002-03-19 Hypertherm, Inc. Centralized control architecture for a plasma arc system
US6622058B1 (en) 2000-04-10 2003-09-16 Tate S. Picard Centralized control architecture for a plasma arc system
US6772040B1 (en) * 2000-04-10 2004-08-03 Hypertherm, Inc. Centralized control architecture for a plasma arc system
US6703581B2 (en) * 2001-02-27 2004-03-09 Thermal Dynamics Corporation Contact start plasma torch
JP2003225768A (ja) 2002-01-30 2003-08-12 Komatsu Sanki Kk プラズマ切断機のメインアーク着火装置及びメインアーク着火制御方法
US6777638B2 (en) * 2002-11-14 2004-08-17 The Esab Group, Inc. Plasma arc torch and method of operation for reduced erosion of electrode and nozzle
US7186947B2 (en) * 2003-03-31 2007-03-06 Hypertherm, Inc. Process monitor for laser and plasma materials processing of materials
US7115833B2 (en) * 2004-11-03 2006-10-03 The Esab Group, Inc. Metering system and method for supplying gas to a torch
US7087856B2 (en) * 2004-11-03 2006-08-08 The Esab Group, Inc. System and method for determining an operational condition of a torch
US7750265B2 (en) * 2004-11-24 2010-07-06 Vladimir Belashchenko Multi-electrode plasma system and method for thermal spraying
US20060163220A1 (en) * 2005-01-27 2006-07-27 Brandt Aaron D Automatic gas control for a plasma arc torch
US7256366B2 (en) * 2005-12-21 2007-08-14 The Esab Group, Inc. Plasma arc torch, and methods of assembling and disassembling a plasma arc torch
JP2010507481A (ja) * 2006-10-20 2010-03-11 スウエイジロク・カンパニー 電子流量制御を使用する溶接パージ制御
US8338740B2 (en) * 2008-09-30 2012-12-25 Hypertherm, Inc. Nozzle with exposed vent passage
US20120223058A1 (en) * 2009-11-04 2012-09-06 Kabushiki Kaisha Yaskawa Denki Non-consumable electrode type arc welding apparatus
US8283594B2 (en) 2010-08-09 2012-10-09 The Esab Group, Inc. System and method for supplying fluids to a plasma arc torch
US9000322B2 (en) * 2011-07-21 2015-04-07 Victor Equipment Company Method for starting and stopping a plasma arc torch
US8901451B2 (en) 2011-08-19 2014-12-02 Illinois Tool Works Inc. Plasma torch and moveable electrode
US9949356B2 (en) 2012-07-11 2018-04-17 Lincoln Global, Inc. Electrode for a plasma arc cutting torch
US9642237B2 (en) 2014-05-20 2017-05-02 Hypertherm, Inc. Method of improving electrode life by simultaneously controlling plasma gas composition and gas flow
CN106238853B (zh) * 2016-08-29 2018-11-23 广州铁路职业技术学院 等离子钎焊机

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373306A (en) * 1964-10-27 1968-03-12 Northern Natural Gas Co Method and apparatus for the control of ionization in a distributed electrical discharge
US3403211A (en) * 1965-03-31 1968-09-24 Centre Nat Rech Scient Methods and devices for heating substances
GB1160882A (en) * 1965-10-25 1969-08-06 Ass Elect Ind Improvements relating to Plasma Torches
US3476906A (en) * 1966-11-21 1969-11-04 United Aircraft Corp Resistance monitoring apparatus
US3588594A (en) * 1968-01-19 1971-06-28 Hitachi Ltd Device for bending a plasma flame
BE721912A (fi) * 1968-10-07 1969-03-14
DE1933306B2 (de) * 1969-07-01 1972-02-10 Siemens AG, 1000 Berlin u 8000 München Verfahren zum betrieb eines lichtbogen hochdruckplasmabrenners und anordnung zur durchfuerhung des verfahrens
US3644782A (en) * 1969-12-24 1972-02-22 Sheet Korman Associates Inc Method of energy transfer utilizing a fluid convection cathode plasma jet
US3770935A (en) * 1970-12-25 1973-11-06 Rikagaku Kenkyusho Plasma jet generator
US3988566A (en) * 1972-06-05 1976-10-26 Metco Inc. Automatic plasma flame spraying process and apparatus
JPS5116379B2 (fi) * 1973-07-20 1976-05-24
US4060088A (en) * 1976-01-16 1977-11-29 Valleylab, Inc. Electrosurgical method and apparatus for establishing an electrical discharge in an inert gas flow
US4341941A (en) * 1979-03-01 1982-07-27 Rikagaku Kenkyusho Method of operating a plasma generating apparatus
US4311897A (en) * 1979-08-28 1982-01-19 Union Carbide Corporation Plasma arc torch and nozzle assembly
US4410788A (en) * 1980-04-16 1983-10-18 Summers John E Power and fluid supply source with multi-function cutting and welding capabilities
JPS5768270A (en) * 1980-10-17 1982-04-26 Hitachi Ltd Control method for plasma cutting
JPS60111886A (ja) * 1983-11-22 1985-06-18 新日本製鐵株式会社 溶射バ−ナ−
JPS6192782A (ja) * 1984-10-15 1986-05-10 Koike Sanso Kogyo Co Ltd プラズマ切断スタート方法

Also Published As

Publication number Publication date
IL95514A0 (en) 1991-06-30
AU624051B2 (en) 1992-05-28
NO903751L (no) 1991-09-03
FI904183A (fi) 1991-09-03
EP0444344A3 (en) 1992-01-02
HUT58580A (en) 1992-03-30
IE903018A1 (en) 1991-09-11
ATE121257T1 (de) 1995-04-15
EP0444344B1 (en) 1995-04-12
KR930005953B1 (ko) 1993-06-30
ZA906797B (en) 1991-06-26
EP0444344A2 (en) 1991-09-04
JPH03258464A (ja) 1991-11-18
HU905301D0 (en) 1991-02-28
FI904183A0 (fi) 1990-08-23
IL95514A (en) 1993-08-18
CN1054698A (zh) 1991-09-18
US5017752A (en) 1991-05-21
KR910016428A (ko) 1991-11-05
PL287579A1 (en) 1991-10-21
DE69018611D1 (de) 1995-05-18
DK0444344T3 (da) 1995-08-28
AU6130690A (en) 1991-09-05
DE69018611T2 (de) 1995-11-23
BR9004874A (pt) 1991-11-19
NO903751D0 (no) 1990-08-27
CA2023991C (en) 1995-05-23
CN1027215C (zh) 1994-12-28

Similar Documents

Publication Publication Date Title
CS427790A3 (en) Method of plasma arc torch start-up
US5414237A (en) Plasma arc torch with integral gas exchange
US7375303B2 (en) Plasma arc torch having an electrode with internal passages
US7375302B2 (en) Plasma arc torch having an electrode with internal passages
KR100199782B1 (ko) 물분사 노즐 조립체를 가진 플라즈마 아크토치
US6207923B1 (en) Plasma arc torch tip providing a substantially columnar shield flow
US5124525A (en) Plasma arc torch having improved nozzle assembly
CN107454730B (zh) 包括回旋环的等离子体电弧切割系统和有关运行方法
US4656330A (en) Plasma jet torch having converging anode and gas vortex in its nozzle for arc constriction
US5120930A (en) Plasma arc torch with improved nozzle shield and step flow
CA2081458A1 (en) Process and apparatus for reducing electrode wear in a plasma arc torch
US6777638B2 (en) Plasma arc torch and method of operation for reduced erosion of electrode and nozzle
CN107710881B (zh) 改进的等离子弧切割系统、消耗品和操作方法
US5194715A (en) Plasma arc torch used in underwater cutting
CA1221746A (en) Thermal plasma torches
US6232574B1 (en) Method and apparatus for improving plasma ARC consumable life
US6096992A (en) Low current water injection nozzle and associated method
US6011238A (en) Electrode for a plasma torch
RU2095209C1 (ru) Резак для кислородной резки металлов
JPH09295156A (ja) プラズマ切断方法
SU1263470A1 (ru) Горелка дл дуговой сварки в среде защитных газов