[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0144267A3 - Method of switching on an arc for a welding or cutting torch, and torch employing such a method - Google Patents

Method of switching on an arc for a welding or cutting torch, and torch employing such a method Download PDF

Info

Publication number
EP0144267A3
EP0144267A3 EP84402439A EP84402439A EP0144267A3 EP 0144267 A3 EP0144267 A3 EP 0144267A3 EP 84402439 A EP84402439 A EP 84402439A EP 84402439 A EP84402439 A EP 84402439A EP 0144267 A3 EP0144267 A3 EP 0144267A3
Authority
EP
European Patent Office
Prior art keywords
torch
arc
welding
switching
employing
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
Application number
EP84402439A
Other languages
French (fr)
Other versions
EP0144267B1 (en
EP0144267A2 (en
Inventor
Gerard Marhic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Lincoln Electric Co France SA
Original Assignee
La Soudure Autogene Francaise
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 La Soudure Autogene Francaise, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical La Soudure Autogene Francaise
Priority to AT84402439T priority Critical patent/ATE34503T1/en
Publication of EP0144267A2 publication Critical patent/EP0144267A2/en
Publication of EP0144267A3 publication Critical patent/EP0144267A3/en
Application granted granted Critical
Publication of EP0144267B1 publication Critical patent/EP0144267B1/en
Expired legal-status Critical Current

Links

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
    • H05H1/3421—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
    • H05H1/3489—Means for contact starting
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Arc Welding In General (AREA)
  • Plasma Technology (AREA)
  • Arc Welding Control (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Discharge Heating (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Cable Accessories (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates in particular to plasma cutting. The nozzle (5) is freely slidably mounted in the torch body so as to come into contact with the electrode if the torch is applied against the work piece (16). By disengaging the torch, an arc is struck between the electrode and the nozzle and then transferred to the work piece. Application in particular to low-power plasma torches.
EP84402439A 1983-12-07 1984-11-29 Welding or cutting torch and method of striking an arc for such a torch Expired EP0144267B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84402439T ATE34503T1 (en) 1983-12-07 1984-11-29 WELDING OR CUTTING TORCH AND METHOD OF STREAMING AN ARC FOR SUCH TORCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8319554 1983-12-07
FR8319554A FR2556549B1 (en) 1983-12-07 1983-12-07 METHOD OF LIGHTING AN ARC FOR A WELDING OR CUTTING TORCH AND TORCH SUITABLE FOR CARRYING OUT THIS METHOD

Publications (3)

Publication Number Publication Date
EP0144267A2 EP0144267A2 (en) 1985-06-12
EP0144267A3 true EP0144267A3 (en) 1985-07-24
EP0144267B1 EP0144267B1 (en) 1988-05-18

Family

ID=9294935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402439A Expired EP0144267B1 (en) 1983-12-07 1984-11-29 Welding or cutting torch and method of striking an arc for such a torch

Country Status (11)

Country Link
US (1) US4567346A (en)
EP (1) EP0144267B1 (en)
JP (1) JPS60141367A (en)
AT (1) ATE34503T1 (en)
AU (1) AU573660B2 (en)
BR (1) BR8406245A (en)
CA (1) CA1218421A (en)
DE (1) DE3471430D1 (en)
ES (1) ES8608266A1 (en)
FR (1) FR2556549B1 (en)
ZA (1) ZA848923B (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559439A (en) * 1983-01-21 1985-12-17 Plasma Energy Corporation Field convertible plasma generator and its method of operation
FR2562748B1 (en) * 1984-04-04 1989-06-02 Soudure Autogene Francaise WELDING TORCH OR PLASMA CUTTING
FR2578137B1 (en) * 1985-02-22 1987-03-27 Soudure Autogene Francaise PLASMA WELDING OR CUTTING TORCH PROVIDED WITH A NOZZLE CARTRIDGE
IT1204121B (en) * 1986-02-27 1989-03-01 Cebora Spa WELDING TORCH OR PLASMA CUTTING WITH NON-TRANSFERRED ARC
US4701590A (en) * 1986-04-17 1987-10-20 Thermal Dynamics Corporation Spring loaded electrode exposure interlock device
US4791268A (en) * 1987-01-30 1988-12-13 Hypertherm, Inc. Arc plasma torch and method using contact starting
US4902871A (en) * 1987-01-30 1990-02-20 Hypertherm, Inc. Apparatus and process for cooling a plasma arc electrode
FR2626206B1 (en) * 1988-01-25 1990-05-18 Soudure Autogene Francaise TORCH AND ARC WORKING MACHINE, AND CARTRIDGE THEREFOR
FR2650470B1 (en) * 1989-07-28 1992-09-04 Soudure Autogene Francaise
JP2594649B2 (en) * 1989-09-29 1997-03-26 松下電器産業株式会社 Plasma cutting or welding torch
FR2654294B1 (en) * 1989-11-08 1992-02-14 Aerospatiale PLASMA TORCH WITH SHORT CIRCUIT PRIMING.
IT1243170B (en) * 1990-11-29 1994-05-24 Trafimet Trafilerie Metalliche PLASMA CUTTING TORCH WITH TRIGGER FOR CONTACT
US5208441A (en) * 1991-04-29 1993-05-04 Century Manufacturing Co. Plasma arc ignition system
US5796067A (en) * 1995-10-30 1998-08-18 The Lincoln Electric Company Plasma arc torches and methods of operating and testing the same
US5660745A (en) 1995-12-15 1997-08-26 Illinois Tool Works Inc. Method and apparatus for a contact start plasma cutting process
US5994663A (en) * 1996-10-08 1999-11-30 Hypertherm, Inc. Plasma arc torch and method using blow forward contact starting system
US5897795A (en) * 1996-10-08 1999-04-27 Hypertherm, Inc. Integral spring consumables for plasma arc torch using blow forward contact starting system
US5841095A (en) * 1996-10-28 1998-11-24 Hypertherm, Inc. Apparatus and method for improved assembly concentricity in a plasma arc torch
FI964347A (en) * 1996-10-28 1998-04-29 Plasma Modules Oy plasma cutting torch
US5900169A (en) * 1997-06-06 1999-05-04 Hypertherm, Inc. Safety circuit for a blow forward contact start plasma arc torch
US5886315A (en) * 1997-08-01 1999-03-23 Hypertherm, Inc. Blow forward contact start plasma arc torch with distributed nozzle support
US6130399A (en) * 1998-07-20 2000-10-10 Hypertherm, Inc. Electrode for a plasma arc torch having an improved insert configuration
US6163009A (en) * 1998-10-23 2000-12-19 Innerlogic, Inc. Process for operating a plasma arc torch
US6498317B2 (en) 1998-10-23 2002-12-24 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
US6677551B2 (en) * 1998-10-23 2004-01-13 Innerlogic, Inc. Process for operating a plasma arc torch
US6163008A (en) * 1999-12-09 2000-12-19 Thermal Dynamics Corporation Plasma arc torch
US6903301B2 (en) * 2001-02-27 2005-06-07 Thermal Dynamics Corporation Contact start plasma arc torch and method of initiating a pilot arc
US6703581B2 (en) 2001-02-27 2004-03-09 Thermal Dynamics Corporation Contact start plasma torch
WO2002074023A2 (en) * 2001-03-09 2002-09-19 Hypertherm, Inc. Composite electrode for a plasma arc torch
US8764978B2 (en) 2001-07-16 2014-07-01 Foret Plasma Labs, Llc System for treating a substance with wave energy from an electrical arc and a second source
US7622693B2 (en) 2001-07-16 2009-11-24 Foret Plasma Labs, Llc Plasma whirl reactor apparatus and methods of use
US6969819B1 (en) * 2004-05-18 2005-11-29 The Esab Group, Inc. Plasma arc torch
US9516736B2 (en) 2007-10-16 2016-12-06 Foret Plasma Labs, Llc System, method and apparatus for recovering mining fluids from mining byproducts
US9185787B2 (en) 2007-10-16 2015-11-10 Foret Plasma Labs, Llc High temperature electrolysis glow discharge device
US9560731B2 (en) 2007-10-16 2017-01-31 Foret Plasma Labs, Llc System, method and apparatus for an inductively coupled plasma Arc Whirl filter press
US9761413B2 (en) 2007-10-16 2017-09-12 Foret Plasma Labs, Llc High temperature electrolysis glow discharge device
US11806686B2 (en) 2007-10-16 2023-11-07 Foret Plasma Labs, Llc System, method and apparatus for creating an electrical glow discharge
US10267106B2 (en) 2007-10-16 2019-04-23 Foret Plasma Labs, Llc System, method and apparatus for treating mining byproducts
US9445488B2 (en) 2007-10-16 2016-09-13 Foret Plasma Labs, Llc Plasma whirl reactor apparatus and methods of use
US9230777B2 (en) 2007-10-16 2016-01-05 Foret Plasma Labs, Llc Water/wastewater recycle and reuse with plasma, activated carbon and energy system
US9051820B2 (en) 2007-10-16 2015-06-09 Foret Plasma Labs, Llc System, method and apparatus for creating an electrical glow discharge
US8278810B2 (en) 2007-10-16 2012-10-02 Foret Plasma Labs, Llc Solid oxide high temperature electrolysis glow discharge cell
US8810122B2 (en) 2007-10-16 2014-08-19 Foret Plasma Labs, Llc Plasma arc torch having multiple operating modes
US8904749B2 (en) 2008-02-12 2014-12-09 Foret Plasma Labs, Llc Inductively coupled plasma arc device
US10244614B2 (en) 2008-02-12 2019-03-26 Foret Plasma Labs, Llc System, method and apparatus for plasma arc welding ceramics and sapphire
AU2009214660B2 (en) 2008-02-12 2013-01-17 Foret Plasma Labs, Llc System, method and apparatus for lean combustion with plasma from an electrical arc
US8258424B2 (en) 2009-08-20 2012-09-04 The Esab Group, Inc. Plasma torch with electrode wear detection system
JP5589222B2 (en) * 2009-11-04 2014-09-17 株式会社安川電機 Non-consumable electrode arc welding equipment
US9949356B2 (en) 2012-07-11 2018-04-17 Lincoln Global, Inc. Electrode for a plasma arc cutting torch
US9499443B2 (en) 2012-12-11 2016-11-22 Foret Plasma Labs, Llc Apparatus and method for sintering proppants
EP2971488B1 (en) 2013-03-12 2018-09-26 Foret Plasma Labs, Llc Apparatus and method for sintering proppants
FR3107159B1 (en) 2020-02-10 2022-12-02 Akryvia DIRECT STRIKE PLASMA TORCH AND MATCHING DIELECTRIC BARRIER NOZZLE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898441A (en) * 1957-07-03 1959-08-04 Union Carbide Corp Arc torch push starting
US3242305A (en) * 1963-07-03 1966-03-22 Union Carbide Corp Pressure retract arc torch
FR2385483A1 (en) * 1977-03-30 1978-10-27 Hosoda Naoyoshi PLASMA ARC WELDING AND CUTTING MACHINE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832513A (en) * 1973-04-09 1974-08-27 G Klasson Starting and stabilizing apparatus for a gas-tungsten arc welding system
US4370539A (en) * 1980-10-07 1983-01-25 Npk Za Kontrolno Zavarachni Raboti Device for the manual start-up of a plasma torch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898441A (en) * 1957-07-03 1959-08-04 Union Carbide Corp Arc torch push starting
US3242305A (en) * 1963-07-03 1966-03-22 Union Carbide Corp Pressure retract arc torch
FR2385483A1 (en) * 1977-03-30 1978-10-27 Hosoda Naoyoshi PLASMA ARC WELDING AND CUTTING MACHINE

Also Published As

Publication number Publication date
EP0144267B1 (en) 1988-05-18
JPS60141367A (en) 1985-07-26
FR2556549B1 (en) 1986-10-17
BR8406245A (en) 1985-10-01
EP0144267A2 (en) 1985-06-12
ES538318A0 (en) 1986-06-01
CA1218421A (en) 1987-02-24
US4567346A (en) 1986-01-28
ZA848923B (en) 1985-07-31
DE3471430D1 (en) 1988-06-23
ATE34503T1 (en) 1988-06-15
AU3636984A (en) 1985-06-13
JPH0130591B2 (en) 1989-06-21
AU573660B2 (en) 1988-06-16
FR2556549A1 (en) 1985-06-14
ES8608266A1 (en) 1986-06-01

Similar Documents

Publication Publication Date Title
EP0144267A3 (en) Method of switching on an arc for a welding or cutting torch, and torch employing such a method
AU574148B2 (en) Low power plasma arc cutting
EP0698441A4 (en) Plasma arc welding apparatus and welding method using the same
AU629697B2 (en) Plasma arc torch having extended nozzle of substantially hourglass
ES8705181A1 (en) System for plasma cutting or welding incorporating a timer.
ES481106A1 (en) Method of welding metal parts.
ES8306626A1 (en) Welding torch using a non-consumable electrode and double protective flux, and corresponding welding process.
ES8704666A1 (en) Process and device for producing a plasma arc.
IN187738B (en)
CA2053090A1 (en) Improved gas shield for welding
JPS5439340A (en) Laser welder
SE8305331L (en) SKERBRENNARE
JPS5768267A (en) Plasma torch
JPS6487082A (en) Plasma cutting device
GB2002276A (en) Welding at pressures greater than atmospheric pressures
IT1236490B (en) Process for executing electric spark welding
JPS57181777A (en) Torch for plasma arc cutting
JPS53142948A (en) Tig welding torch
KR840005226U (en) Switch lock device of the torch handle that supplies carbon dioxide gas when welding carbon dioxide arc
JPS5418446A (en) Arc welding method
JPS53110940A (en) Automatic tig welder
SU1591320A1 (en) Method of arc welding with consumable electrode
IT8704844V0 (en) PERFECTED WELDING OR PLASMA CUTTING TORCH WITH NON-TRANSFERRED OR TRANSFERRED ARC

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19841203

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19860827

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 34503

Country of ref document: AT

Date of ref document: 19880615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3471430

Country of ref document: DE

Date of ref document: 19880623

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 84402439.8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19971015

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19971021

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19971027

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19971211

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19981014

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19981022

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990601

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 84402439.8

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19990601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19991011

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19991020

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991028

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

BERE Be: lapsed

Owner name: L' AIR LIQUIDE S.A. POUR L'ETUDE ET L'EXPLOITATION

Effective date: 19991130

Owner name: LA SOUDURE AUTOGENE FRANCAISE

Effective date: 19991130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001129

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20001129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST