GB1112935A - Improvements in plasma arc devices - Google Patents

Improvements in plasma arc devices

Info

Publication number
GB1112935A
GB1112935A GB40812/65A GB4081265A GB1112935A GB 1112935 A GB1112935 A GB 1112935A GB 40812/65 A GB40812/65 A GB 40812/65A GB 4081265 A GB4081265 A GB 4081265A GB 1112935 A GB1112935 A GB 1112935A
Authority
GB
United Kingdom
Prior art keywords
arc
anode
cathode
treated
enclosure
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
GB40812/65A
Inventor
Derek Wyman
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB40812/65A priority Critical patent/GB1112935A/en
Priority to US580388A priority patent/US3433991A/en
Publication of GB1112935A publication Critical patent/GB1112935A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32055—Arc discharge
    • 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
    • H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Discharge Heating (AREA)
  • Plasma Technology (AREA)

Abstract

1,112,935. Arc blow-torches. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 15 Sept., 1966 [24 Sept., 1965], No. 40812/65. Heading H5H. A plasma arc device has its cathode 22 comprised in part by a plurality of thoriated tungsten rods 26 touching one another at their ends and each having an area (27, Fig. 2) treated to concentrate emission. The cathode also includes a tube 23 for material to be treated and a cooling jacket 28, 29 located in a shaft 12 rotatably mounted in a bearing block 11. Shaft 12 carries a drive pulley 10 and a flange 13, the latter carrying a cooled cylindrical copper arc enclosure 16 for rotation therewith. The anode assembly comprises a cooled copper starting anode 31 which collects the treated material and a cooled running anode 33 adjustably secured thereto and provided with an outlet 58. Gas introduced through tube 23 or ducts 56 and 57 to mix with the material leaves through outlet 58. In a modification (Figs. 6a, 6b), the arc enclosure comprises hollow segments interconnected for coolant circulation. The cathode 22 is mounted for movement towards and away from the anode assembly to strike the arc, carbon brushes 30, switch 39 and resistor 40 completing the circuit to the supply 38. Once the arc has transferred from anode 31 to anode 33, switch 39 is opene d.Rotation of enclosure 16 causes the arc to expand.
GB40812/65A 1965-09-24 1965-09-24 Improvements in plasma arc devices Expired GB1112935A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB40812/65A GB1112935A (en) 1965-09-24 1965-09-24 Improvements in plasma arc devices
US580388A US3433991A (en) 1965-09-24 1966-09-19 Plasma arc device with cathode structure comprising plurality of rods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40812/65A GB1112935A (en) 1965-09-24 1965-09-24 Improvements in plasma arc devices

Publications (1)

Publication Number Publication Date
GB1112935A true GB1112935A (en) 1968-05-08

Family

ID=10416748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40812/65A Expired GB1112935A (en) 1965-09-24 1965-09-24 Improvements in plasma arc devices

Country Status (2)

Country Link
US (1) US3433991A (en)
GB (1) GB1112935A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017201A1 (en) * 1979-04-04 1980-10-15 DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. Direct current plasma torch
GB2240244A (en) * 1988-11-14 1991-07-24 Max P Schlienger Rotatable nozzle plasma torch

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514223A1 (en) * 1981-10-01 1983-04-08 Anvar Plasma generator, esp. for melting ceramics or extn. metallurgy - where powder to be melted or reduced is injected through bore of tubular cathode
US4517433A (en) * 1982-03-08 1985-05-14 Ameco Corporation Gas welding electrode for a small bore
SE529053C2 (en) 2005-07-08 2007-04-17 Plasma Surgical Invest Ltd Plasma generating device, plasma surgical device and use of a plasma surgical device
SE529058C2 (en) 2005-07-08 2007-04-17 Plasma Surgical Invest Ltd Plasma generating device, plasma surgical device, use of a plasma surgical device and method for forming a plasma
SE529056C2 (en) 2005-07-08 2007-04-17 Plasma Surgical Invest Ltd Plasma generating device, plasma surgical device and use of a plasma surgical device
US7928338B2 (en) * 2007-02-02 2011-04-19 Plasma Surgical Investments Ltd. Plasma spraying device and method
WO2009018838A1 (en) * 2007-08-06 2009-02-12 Plasma Surgical Investments Limited Cathode assembly and method for pulsed plasma generation
US7589473B2 (en) * 2007-08-06 2009-09-15 Plasma Surgical Investments, Ltd. Pulsed plasma device and method for generating pulsed plasma
US8735766B2 (en) * 2007-08-06 2014-05-27 Plasma Surgical Investments Limited Cathode assembly and method for pulsed plasma generation
US8613742B2 (en) * 2010-01-29 2013-12-24 Plasma Surgical Investments Limited Methods of sealing vessels using plasma
US9089319B2 (en) 2010-07-22 2015-07-28 Plasma Surgical Investments Limited Volumetrically oscillating plasma flows
CN105755421B (en) * 2016-04-20 2018-03-06 北京科技大学 A kind of direct current argon arc plasma powder spray gun and preparation method
CA3191050A1 (en) 2020-08-28 2022-03-03 Nikolay Suslov Systems, methods, and devices for generating predominantly radially expanded plasma flow

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH357378A (en) * 1956-04-02 1961-10-15 Berghaus Elektrophysik Anst Procedure and equipment for carrying out technical processes
DE1206394B (en) * 1961-06-29 1965-12-09 Siemens Ag Method for the mass separation of a gas mixture
NL6412703A (en) * 1964-10-31 1966-05-02
US3796410A (en) * 1972-06-22 1974-03-12 Speedrack Inc Guiderail for storage racks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017201A1 (en) * 1979-04-04 1980-10-15 DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. Direct current plasma torch
GB2240244A (en) * 1988-11-14 1991-07-24 Max P Schlienger Rotatable nozzle plasma torch
GB2240244B (en) * 1988-11-14 1994-06-29 Max P Schlienger Rotatable plasma torch

Also Published As

Publication number Publication date
US3433991A (en) 1969-03-18

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