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EP1395097A3 - Device for plasma cutting - Google Patents

Device for plasma cutting Download PDF

Info

Publication number
EP1395097A3
EP1395097A3 EP03018298A EP03018298A EP1395097A3 EP 1395097 A3 EP1395097 A3 EP 1395097A3 EP 03018298 A EP03018298 A EP 03018298A EP 03018298 A EP03018298 A EP 03018298A EP 1395097 A3 EP1395097 A3 EP 1395097A3
Authority
EP
European Patent Office
Prior art keywords
exit
plasma cutting
sleeve
nozzle
cavity
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
EP03018298A
Other languages
German (de)
French (fr)
Other versions
EP1395097A2 (en
EP1395097B1 (en
Inventor
Giorgio c/o TEC. MO S.R.L. Bassi
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.)
Tecmo SRL
Original Assignee
Tecmo SRL
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 Tecmo SRL filed Critical Tecmo SRL
Publication of EP1395097A2 publication Critical patent/EP1395097A2/en
Publication of EP1395097A3 publication Critical patent/EP1395097A3/en
Application granted granted Critical
Publication of EP1395097B1 publication Critical patent/EP1395097B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H05H1/3484—Convergent-divergent nozzles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Arc Welding In General (AREA)
  • Plasma Technology (AREA)

Abstract

A device for plasma cutting is provided with an external sleeve (2) for a nozzle (3) equipped with an exit (4) of the plasma jet (30) and separated by the external sleeve (2) by means of a cavity (5) outside flowing at least through an opening (6) of such sleeve (2).
The device (1) includes a protrusion (7) of the nozzle (3) carrying the exit (4) and being approximately truncated cone shaped with side wall (8) that diverges in the direction of the external outlet (9) of the exit (4) to deflect, in direction away from the jet (30), a cooling fluid (F) flowing trough the cavity (5).
EP03018298A 2002-08-30 2003-08-12 Device for plasma cutting Expired - Lifetime EP1395097B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20020553 2002-08-30
IT000553A ITBO20020553A1 (en) 2002-08-30 2002-08-30 PLASMA CUTTING DEVICE.

Publications (3)

Publication Number Publication Date
EP1395097A2 EP1395097A2 (en) 2004-03-03
EP1395097A3 true EP1395097A3 (en) 2006-10-25
EP1395097B1 EP1395097B1 (en) 2009-01-14

Family

ID=31198606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03018298A Expired - Lifetime EP1395097B1 (en) 2002-08-30 2003-08-12 Device for plasma cutting

Country Status (3)

Country Link
EP (1) EP1395097B1 (en)
DE (1) DE60325813D1 (en)
IT (1) ITBO20020553A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101176387B (en) * 2005-05-11 2012-11-21 人工发热机有限公司 Generation of Discontinuous Gas Jets in Plasma Arc Torch Applications
US8097828B2 (en) 2006-05-11 2012-01-17 Hypertherm, Inc. Dielectric devices for a plasma arc torch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029930A (en) * 1972-09-04 1977-06-14 Mitsubishi Jukogyo Kabushiki Kaisha Welding torch for underwater welding
US4816637A (en) * 1985-11-25 1989-03-28 Hypertherm, Inc. Underwater and above-water plasma arc cutting torch and method
WO1991002619A1 (en) * 1989-08-17 1991-03-07 Hypertherm, Inc. Plasma arc torch with improved nozzle shield and step flow
EP0444346A2 (en) * 1990-02-28 1991-09-04 ESAB Welding Products, Inc. Plasma arc torch having extended nozzle
EP0735805A1 (en) * 1993-12-17 1996-10-02 Adamas At Ag Electric arc plasma torch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029930A (en) * 1972-09-04 1977-06-14 Mitsubishi Jukogyo Kabushiki Kaisha Welding torch for underwater welding
US4816637A (en) * 1985-11-25 1989-03-28 Hypertherm, Inc. Underwater and above-water plasma arc cutting torch and method
WO1991002619A1 (en) * 1989-08-17 1991-03-07 Hypertherm, Inc. Plasma arc torch with improved nozzle shield and step flow
EP0444346A2 (en) * 1990-02-28 1991-09-04 ESAB Welding Products, Inc. Plasma arc torch having extended nozzle
EP0735805A1 (en) * 1993-12-17 1996-10-02 Adamas At Ag Electric arc plasma torch

Also Published As

Publication number Publication date
EP1395097A2 (en) 2004-03-03
EP1395097B1 (en) 2009-01-14
DE60325813D1 (en) 2009-03-05
ITBO20020553A1 (en) 2004-02-29

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