GB969831A - Improvements in or relating to plasma sources - Google Patents

Improvements in or relating to plasma sources

Info

Publication number
GB969831A
GB969831A GB49011/62A GB4901162A GB969831A GB 969831 A GB969831 A GB 969831A GB 49011/62 A GB49011/62 A GB 49011/62A GB 4901162 A GB4901162 A GB 4901162A GB 969831 A GB969831 A GB 969831A
Authority
GB
United Kingdom
Prior art keywords
neck
nozzle
plasma jet
diameter
cone
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.)
Expired
Application number
GB49011/62A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB969831A publication Critical patent/GB969831A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • 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

Abstract

969,831. Arc blow torches. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 31, 1962 [Jan. 10, 1962], No. 49011/62. Heading H5H. A nozzle for the delivery of a plasma jet has an inner surface in the form of a truncated cone joined at its smaller end, by a surface at right angles to the axis of the cone, to an aligned cylindrical output channel of reduced crosssection, a rod electrode terminating within the cone for applying a gas ionizing voltage between the rod and the nozzle. Argon from a pipe 10 flows into, and is ionized in, the space 8 between a water-cooled cathode 1 and a watercooled anode 2, thereafter escaping as a plasma jet through the nozzle neck 13 of reduced diameter. The abrupt reduction of diameter at the entrance to neck 13 tends to produce both a reduction in the plasma jet diameter to less than that of the neck, and the retention of a pocket of cooler gas 16 which thermally insulates the neck, whereby temperature up to 15,000‹ K. can be withstood by the nozzle.
GB49011/62A 1962-01-16 1962-12-31 Improvements in or relating to plasma sources Expired GB969831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR884374A FR1318736A (en) 1962-01-16 1962-01-16 Improvements to plasma sources, in particular plasma torches

Publications (1)

Publication Number Publication Date
GB969831A true GB969831A (en) 1964-09-16

Family

ID=8770211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49011/62A Expired GB969831A (en) 1962-01-16 1962-12-31 Improvements in or relating to plasma sources

Country Status (4)

Country Link
BE (1) BE626654A (en)
DE (1) DE1868776U (en)
FR (1) FR1318736A (en)
GB (1) GB969831A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521106A (en) * 1965-04-12 1970-07-21 Siemens Ag Plasma burner with adjustable constriction structure in gas flow path
DE2839485A1 (en) * 1978-09-11 1980-03-20 Siemens Ag TORCH FOR MICROPLASMA WELDING
US4645973A (en) * 1983-10-03 1987-02-24 L'Air Liquide, Societe Anomyme pour l'Etude et l'Exploitation des Procedes Georges Claude Hyperfrequency energy plasma torch
WO2001043512A1 (en) * 1999-12-09 2001-06-14 Agrodyn Hochspannungstechnik Gmbh Plasma nozzle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521106A (en) * 1965-04-12 1970-07-21 Siemens Ag Plasma burner with adjustable constriction structure in gas flow path
DE2839485A1 (en) * 1978-09-11 1980-03-20 Siemens Ag TORCH FOR MICROPLASMA WELDING
US4645973A (en) * 1983-10-03 1987-02-24 L'Air Liquide, Societe Anomyme pour l'Etude et l'Exploitation des Procedes Georges Claude Hyperfrequency energy plasma torch
WO2001043512A1 (en) * 1999-12-09 2001-06-14 Agrodyn Hochspannungstechnik Gmbh Plasma nozzle
US6677550B2 (en) 1999-12-09 2004-01-13 Plasmatreat Gmbh Plasma nozzle

Also Published As

Publication number Publication date
BE626654A (en)
FR1318736A (en) 1963-02-22
DE1868776U (en) 1963-03-14

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