EP2557902A3 - Cathode assembly and method for pulsed plasma generation - Google Patents

Cathode assembly and method for pulsed plasma generation Download PDF

Info

Publication number
EP2557902A3
EP2557902A3 EP12173651.6A EP12173651A EP2557902A3 EP 2557902 A3 EP2557902 A3 EP 2557902A3 EP 12173651 A EP12173651 A EP 12173651A EP 2557902 A3 EP2557902 A3 EP 2557902A3
Authority
EP
European Patent Office
Prior art keywords
cathode
attachment
cathode assembly
current
area
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
EP12173651.6A
Other languages
German (de)
French (fr)
Other versions
EP2557902A2 (en
EP2557902B1 (en
Inventor
Nikolay Suslov
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.)
Plasma Surgical Investments Ltd
Original Assignee
Plasma Surgical Investments 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 Plasma Surgical Investments Ltd filed Critical Plasma Surgical Investments Ltd
Priority to EP12173651.6A priority Critical patent/EP2557902B1/en
Publication of EP2557902A2 publication Critical patent/EP2557902A2/en
Publication of EP2557902A3 publication Critical patent/EP2557902A3/en
Application granted granted Critical
Publication of EP2557902B1 publication Critical patent/EP2557902B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H05H1/3478—Geometrical details
    • 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

Abstract

A cathode assembly and a method for generation of pulsed plasma are disclosed. The cathode assembly comprises a cathode (2) holder connected to multiple longitudinally aligned cathodes (10, 20, 30), preferably of the same diameter, and different lengths. The method is characterized by forming an electric arc between the cathodes (10, 20, 30) in the assembly and an anode (4) by passing DC current of a predetermined magnitude. Once the arc is established the current is reduced to the magnitude sufficient to sustain an electric arc, or a slightly larger magnitude, thereby reducing the area of arc attachment to a single cathode. Once the area of attachment has been reduced, the current is raised to the operational level of the pulse, while the area of attachment does not increase significantly.
EP12173651.6A 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation Active EP2557902B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12173651.6A EP2557902B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/EP2007/006940 WO2009018838A1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation
EP12173651.6A EP2557902B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation
EP07786583.0A EP2177093B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP07786583.0 Division 2007-08-06
EP07786583.0A Division-Into EP2177093B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation
EP07786583.0A Division EP2177093B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation

Publications (3)

Publication Number Publication Date
EP2557902A2 EP2557902A2 (en) 2013-02-13
EP2557902A3 true EP2557902A3 (en) 2014-10-29
EP2557902B1 EP2557902B1 (en) 2016-11-23

Family

ID=39273282

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12173651.6A Active EP2557902B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation
EP07786583.0A Active EP2177093B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07786583.0A Active EP2177093B1 (en) 2007-08-06 2007-08-06 Cathode assembly and method for pulsed plasma generation

Country Status (7)

Country Link
EP (2) EP2557902B1 (en)
JP (1) JP5154647B2 (en)
CN (1) CN101828433B (en)
CA (1) CA2695902C (en)
ES (1) ES2458515T3 (en)
HK (1) HK1136738A1 (en)
WO (1) WO2009018838A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100127927A (en) * 2009-05-27 2010-12-07 고영산 Intense pulsed light apparatus capable of controlling enegy level
US9226378B2 (en) 2011-02-25 2015-12-29 Nippon Steel & Sumitomo Metal Corporation Plasma torch
CN104203477A (en) * 2012-02-28 2014-12-10 苏舍美特科（美国）公司 Extended cascade plasma gun
US10045432B1 (en) * 2017-10-20 2018-08-07 DM ECO Plasma, Inc. System and method of low-power plasma generation based on high-voltage plasmatron
CN110230082B (en) * 2019-07-18 2021-06-25 烟台大学 Device and method for preparing cluster cathode micro-arc oxidation film
US20210329100A1 (en) * 2020-04-10 2021-10-21 Oracle International Corporation System and method for use of remote procedure call with a microservices environment

Citations (3)

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US5225652A (en) * 1991-02-21 1993-07-06 Plasma-Technik Ag Plasma spray apparatus for spraying powdery or gaseous material
US5406046A (en) * 1992-11-06 1995-04-11 Plasma Tecknik Ag Plasma spray apparatus for spraying powdery material
GB2407050A (en) * 2003-10-01 2005-04-20 C A Technology Ltd Rotary ring cathode for plasma spraying

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US2615137A (en) 1946-01-05 1952-10-21 Stephen M Duke High-power vacuum tube
GB1112935A (en) * 1965-09-24 1968-05-08 Nat Res Dev Improvements in plasma arc devices
US3566185A (en) 1969-03-12 1971-02-23 Atomic Energy Commission Sputter-type penning discharge for metallic ions
CH578622A5 (en) * 1972-03-16 1976-08-13 Bbc Brown Boveri & Cie
JPS52117255A (en) * 1976-03-29 1977-10-01 Kobe Steel Ltd Welding wire of consumable electrode
JPS60130472A (en) * 1983-12-16 1985-07-11 ウセソユズニ　ナウチノ‐イスレドヴアテルスキー　プロエクトノー　コンストルクトルスキー　イ　テクノロギチエスキ　インスチチユート　エレクトロスヴアロチノゴ　オボルドヴアニア Arc welding method and device
US4785220A (en) 1985-01-30 1988-11-15 Brown Ian G Multi-cathode metal vapor arc ion source
US4713170A (en) 1986-03-31 1987-12-15 Florida Development And Manufacturing, Inc. Swimming pool water purifier
US5008511C1 (en) * 1990-06-26 2001-03-20 Univ British Columbia Plasma torch with axial reactant feed
FR2664687B1 (en) 1990-07-12 1992-09-25 Giat Ind Sa SECURITY DEVICE FOR AN AUTOMATIC WEAPON.
US5089707A (en) 1990-11-14 1992-02-18 Ism Technologies, Inc. Ion beam generating apparatus with electronic switching between multiple cathodes
DE4105407A1 (en) * 1991-02-21 1992-08-27 Plasma Technik Ag PLASMA SPRAYER FOR SPRAYING SOLID, POWDER-SHAPED OR GAS-SHAPED MATERIAL
JPH06126449A (en) * 1992-10-23 1994-05-10 Matsushita Electric Works Ltd Arc welding method
AU1842200A (en) * 1998-12-07 2000-06-26 E.I. Du Pont De Nemours And Company Hollow cathode array for plasma generation
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WO2003017317A1 (en) * 2001-08-13 2003-02-27 Mapper Lithography Ip B.V. Lithography system comprising a protected converter plate
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225652A (en) * 1991-02-21 1993-07-06 Plasma-Technik Ag Plasma spray apparatus for spraying powdery or gaseous material
US5406046A (en) * 1992-11-06 1995-04-11 Plasma Tecknik Ag Plasma spray apparatus for spraying powdery material
GB2407050A (en) * 2003-10-01 2005-04-20 C A Technology Ltd Rotary ring cathode for plasma spraying

Also Published As

Publication number Publication date
HK1136738A1 (en) 2010-07-02
CN101828433B (en) 2013-04-24
WO2009018838A1 (en) 2009-02-12
EP2177093B1 (en) 2014-01-22
EP2557902A2 (en) 2013-02-13
CA2695902A1 (en) 2009-02-12
CA2695902C (en) 2016-01-05
EP2177093A1 (en) 2010-04-21
EP2557902B1 (en) 2016-11-23
CN101828433A (en) 2010-09-08
JP2010536124A (en) 2010-11-25
JP5154647B2 (en) 2013-02-27
ES2458515T3 (en) 2014-05-05

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