EP0270520A3 - Plasma arc igniting method - Google Patents

Plasma arc igniting method Download PDF

Info

Publication number: EP0270520A3
Authority: EP; European Patent Office
Prior art keywords: plasma arc; igniting method; arc igniting; plasma; igniting
Prior art date: 1986-12-01
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

EP87890271A

Other languages

German (de)

Other versions

EP0270520A2 (en

EP0270520B1 (en

Inventor

Heinz Dipl.-Ing. Dr. Techn. Muller

Reinhard Dipl.-Ing. Buzzi

Gerhard Dipl.-Ing. Scheiblhofer

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.)

Primetals Technologies Austria GmbH

Original Assignee

Voestalpine AG

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.)

1986-12-01

Filing date

1987-11-26

Publication date

1989-02-01

1987-11-26 Application filed by Voestalpine AG filed Critical Voestalpine AG

1988-06-08 Publication of EP0270520A2 publication Critical patent/EP0270520A2/en

1989-02-01 Publication of EP0270520A3 publication Critical patent/EP0270520A3/en

1993-01-13 Application granted granted Critical

1993-01-13 Publication of EP0270520B1 publication Critical patent/EP0270520B1/en

2007-11-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/005—Electrical diagrams
- 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)
Vertical, Hearth, Or Arc Furnaces (AREA)
Gasification And Melting Of Waste (AREA)
Furnace Details (AREA)
Plasma Technology (AREA)

EP87890271A 1986-12-01 1987-11-26 Plasma arc igniting method Expired - Lifetime EP0270520B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AT0319486A AT386717B (en)	1986-12-01	1986-12-01	METHOD FOR ENDING A PLASMA BOW
AT3194/86		1986-12-01

Publications (3)

Publication Number	Publication Date
EP0270520A2 EP0270520A2 (en)	1988-06-08
EP0270520A3 true EP0270520A3 (en)	1989-02-01
EP0270520B1 EP0270520B1 (en)	1993-01-13

Family

ID=3546806

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87890271A Expired - Lifetime EP0270520B1 (en)	1986-12-01	1987-11-26	Plasma arc igniting method

Country Status (8)

Country	Link
US (1)	US4764208A (en)
EP (1)	EP0270520B1 (en)
JP (1)	JPS63148600A (en)
AT (1)	AT386717B (en)
DD (1)	DD269741A5 (en)
DE (1)	DE3783586D1 (en)
FI (1)	FI875211A7 (en)
NO (1)	NO169690C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5444208A (en) *	1993-03-29	1995-08-22	Fmc Corporation	Multiple source plasma generation and injection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0071351A1 (en) *	1981-07-30	1983-02-09	Hydro-Quebec	A transferred-arc plasma reactor for chemical and metallurgical applications
US4580029A (en) *	1983-10-27	1986-04-01	Union Carbide Corporation	Plasma arc power supply and method
DE3528750A1 (en) *	1984-09-26	1986-04-24	Voest-Alpine Ag, Linz	Regulating device for a high-power plasma burner, especially for a smelting furnace

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2119179A6 (en) *	1970-12-23	1972-08-04	Anvar
BE809746A (en) *	1974-01-15	1974-05-02		ELECTRICAL CURRENT SUPPLY (CONTINUOUS AND ALTERNATIVE) FOR PLASMAS SYSTEMS AT HIGH TEMPERATURES.
AT331434B (en) *	1974-05-28	1976-08-25	Ver Edelstahlwerke Ag	PROCEDURE FOR REMOVING UNWANTED ELEMENTS, IN PARTICULAR H2 AND O2 DURING ELECTRIC SLAG REMOVAL AND ARRANGEMENT FOR CARRYING OUT THE PROCEDURE
DD122908A1 (en) *	1975-12-19	1976-11-05
AT372977B (en) *	1982-01-19	1983-12-12	Voest Alpine Ag	METHOD AND DEVICE FOR REDUCING OXIDE-CONTAINING FINE-PARTED ORES
DE3375805D1 (en) *	1982-12-22	1988-04-07	Voest Alpine Ag	Method of carrying out metallurgical or chemical processes, and a low-shaft furnace
CA1278431C (en) *	1985-09-26	1991-01-02	Nicholas Adrian Barcza	Thermal production of magnesium

1986
- 1986-12-01 AT AT0319486A patent/AT386717B/en not_active IP Right Cessation
1987
- 1987-11-25 FI FI875211A patent/FI875211A7/en not_active IP Right Cessation
- 1987-11-25 US US07/125,466 patent/US4764208A/en not_active Expired - Fee Related
- 1987-11-26 DE DE8787890271T patent/DE3783586D1/en not_active Expired - Fee Related
- 1987-11-26 EP EP87890271A patent/EP0270520B1/en not_active Expired - Lifetime
- 1987-11-27 DD DD87309582A patent/DD269741A5/en not_active IP Right Cessation
- 1987-11-30 NO NO874991A patent/NO169690C/en unknown
- 1987-12-01 JP JP62305510A patent/JPS63148600A/en active Pending

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0071351A1 (en) *	1981-07-30	1983-02-09	Hydro-Quebec	A transferred-arc plasma reactor for chemical and metallurgical applications
US4580029A (en) *	1983-10-27	1986-04-01	Union Carbide Corporation	Plasma arc power supply and method
DE3528750A1 (en) *	1984-09-26	1986-04-24	Voest-Alpine Ag, Linz	Regulating device for a high-power plasma burner, especially for a smelting furnace

Also Published As

Publication number	Publication date
EP0270520A2 (en)	1988-06-08
DE3783586D1 (en)	1993-02-25
NO169690C (en)	1992-07-22
NO874991L (en)	1988-06-02
AT386717B (en)	1988-10-10
EP0270520B1 (en)	1993-01-13
NO169690B (en)	1992-04-13
FI875211A0 (en)	1987-11-25
FI875211A7 (en)	1988-06-02
US4764208A (en)	1988-08-16
DD269741A5 (en)	1989-07-05
ATA319486A (en)	1988-02-15
JPS63148600A (en)	1988-06-21
NO874991D0 (en)	1987-11-30

Publication	Publication Date	Title
GB2174327B (en)	1988-10-05	Plasma arc torch
DE3374644D1 (en)	1987-12-23	Single gas plasma torch
GB2229802B (en)	1992-06-24	Torch igniters
GB2199075B (en)	1990-11-21	Plasma jet ignition apparatus
AU557177B2 (en)	1986-12-11	Arc plasma generator
EP0339563A3 (en)	1990-01-10	Transfer-type plasma torch
GB8615618D0 (en)	1986-07-30	Superpurifier for argon gas
GR3001836T3 (en)	1992-11-23	Plasma arc torch
GB2167278B (en)	1988-05-25	Plasma arc torch
ZA857486B (en)	1986-06-25	Plasma torch
GB2192821B (en)	1991-02-20	Plasma arc torch
DE3571544D1 (en)	1989-08-17	Arc plasma torch
ZA863294B (en)	1987-01-28	Plasma burner
GB2185349B (en)	1989-07-05	Plasma generator
EP0314791A4 (en)	1988-12-01	Electrode structure of a non-transfer-type plasma torch.
EP0480034A4 (en)	1992-06-24	Plasma torch
GB8615248D0 (en)	1986-07-30	Arc welding
AU573712B2 (en)	1988-06-16	Plasma arc forming process and device
EP0134961A3 (en)	1986-06-11	Plasma torch and operating method
EP0270520A3 (en)	1989-02-01	Plasma arc igniting method
GB8704752D0 (en)	1987-04-01	Gas hobs
DE3478756D1 (en)	1989-07-27	Plasma jet ignition apparatus
PL265791A1 (en)	1988-11-24	Plasma burner
GB8427723D0 (en)	1984-12-12	Plasma initiation
SU1156881A1 (en)	1985-05-23	Electric arc ignition apparatus

Legal Events

Date	Code	Title	Description
1988-04-23	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
1988-06-08	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): BE CH DE ES FR GB IT LI LU NL SE
1988-12-14	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
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1989-08-16	17P	Request for examination filed	Effective date: 19890616
1991-01-30	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT M.B.
1992-05-20	17Q	First examination report despatched	Effective date: 19920406
1992-07-01	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH
1992-11-27	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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1993-04-28	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19930330
1993-04-30	ET	Fr: translation filed
1993-06-16	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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