FR2363961A1 - METHOD AND APPARATUS FOR EXTENSION OF THE LONGEVITY OF AN ELECTRODE FROM WHICH AN ARC IS MAINTAINED - Google Patents

METHOD AND APPARATUS FOR EXTENSION OF THE LONGEVITY OF AN ELECTRODE FROM WHICH AN ARC IS MAINTAINED

Info

Publication number
FR2363961A1
FR2363961A1 FR7726578A FR7726578A FR2363961A1 FR 2363961 A1 FR2363961 A1 FR 2363961A1 FR 7726578 A FR7726578 A FR 7726578A FR 7726578 A FR7726578 A FR 7726578A FR 2363961 A1 FR2363961 A1 FR 2363961A1
Authority
FR
France
Prior art keywords
electrode
arc
maintained
longevity
extension
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
FR7726578A
Other languages
French (fr)
Other versions
FR2363961B1 (en
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.)
Tioxide Group Ltd
Original Assignee
Tioxide Group Ltd
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 Tioxide Group Ltd filed Critical Tioxide Group Ltd
Publication of FR2363961A1 publication Critical patent/FR2363961A1/en
Application granted granted Critical
Publication of FR2363961B1 publication Critical patent/FR2363961B1/fr
Granted 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
    • 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
    • H05H1/36—Circuit arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Arc Welding Control (AREA)
  • Plasma Technology (AREA)
  • Discharge Heating (AREA)
  • Inorganic Insulating Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Cable Accessories (AREA)

Abstract

L'invention concerne un procédé et un appareil de prolongation de la longévité d'une electrode à partir de laquelle un arc est entretenu. L'électrode est entourée par un enroulement de champ dans laquelle circule un courant continu dont l'intensité oscille de +- 60%, à une fréquence comprise entre 5 x 10**-1 et 1 x 10**-4Hz. L'invention s'applique notamment à des canons à plasma.A method and apparatus for extending the life of an electrode from which an arc is maintained is disclosed. The electrode is surrounded by a field winding in which circulates a direct current whose intensity oscillates by + - 60%, at a frequency between 5 x 10 ** - 1 and 1 x 10 ** - 4Hz. The invention applies in particular to plasma guns.

FR7726578A 1976-09-02 1977-09-01 METHOD AND APPARATUS FOR EXTENSION OF THE LONGEVITY OF AN ELECTRODE FROM WHICH AN ARC IS MAINTAINED Granted FR2363961A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36502/76A GB1520365A (en) 1976-09-02 1976-09-02 Erosion control of an arc electrode

Publications (2)

Publication Number Publication Date
FR2363961A1 true FR2363961A1 (en) 1978-03-31
FR2363961B1 FR2363961B1 (en) 1981-10-02

Family

ID=10388764

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726578A Granted FR2363961A1 (en) 1976-09-02 1977-09-01 METHOD AND APPARATUS FOR EXTENSION OF THE LONGEVITY OF AN ELECTRODE FROM WHICH AN ARC IS MAINTAINED

Country Status (12)

Country Link
JP (1) JPS5331238A (en)
AU (1) AU502742B2 (en)
BE (1) BE857967A (en)
CA (1) CA1083229A (en)
DE (1) DE2738813A1 (en)
ES (1) ES462023A1 (en)
FI (1) FI63648C (en)
FR (1) FR2363961A1 (en)
GB (1) GB1520365A (en)
NL (1) NL176735C (en)
NO (1) NO145037C (en)
ZA (1) ZA774596B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113758987B (en) * 2021-08-12 2024-03-19 上海大学 Method for measuring cathode reaction rate control step based on magnetic field effect

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1194612A (en) * 1957-04-11 1959-11-10 Ici Ltd Method for operating an electric arc furnace
US3530223A (en) * 1969-03-03 1970-09-22 Westinghouse Electric Corp Electrode apparatus for use in an arc electrode furnace and magnetic field coils for moving and focusing the arcs therefrom

Also Published As

Publication number Publication date
FI63648C (en) 1983-07-11
AU502742B2 (en) 1979-08-09
ES462023A1 (en) 1978-06-16
AU2757477A (en) 1979-02-08
ZA774596B (en) 1978-06-28
NL176735B (en) 1984-12-17
NL7708768A (en) 1978-03-06
GB1520365A (en) 1978-08-09
FI63648B (en) 1983-03-31
BE857967A (en) 1978-02-20
FI772458A (en) 1978-03-03
NO145037B (en) 1981-09-14
FR2363961B1 (en) 1981-10-02
CA1083229A (en) 1980-08-05
NO145037C (en) 1981-12-28
NO772992L (en) 1978-03-03
JPS5331238A (en) 1978-03-24
DE2738813A1 (en) 1978-03-09
NL176735C (en) 1985-05-17
DE2738813C2 (en) 1988-06-16
JPS5649435B2 (en) 1981-11-21

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse