CA2231109A1 - Plasma arc torch - Google Patents

Plasma arc torch

Info

Publication number
CA2231109A1
CA2231109A1 CA002231109A CA2231109A CA2231109A1 CA 2231109 A1 CA2231109 A1 CA 2231109A1 CA 002231109 A CA002231109 A CA 002231109A CA 2231109 A CA2231109 A CA 2231109A CA 2231109 A1 CA2231109 A1 CA 2231109A1
Authority
CA
Canada
Prior art keywords
end wall
outlet opening
nozzle
plasma
gas
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
CA002231109A
Other languages
French (fr)
Other versions
CA2231109C (en
Inventor
Lifeng Luo
William T. Matthews
David W. Perrin
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.)
Lincoln Global Inc
Original Assignee
Lincoln Electric Co
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 Lincoln Electric Co filed Critical Lincoln Electric Co
Publication of CA2231109A1 publication Critical patent/CA2231109A1/en
Application granted granted Critical
Publication of CA2231109C publication Critical patent/CA2231109C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • 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
    • H05H1/3468—Vortex generators
    • 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
    • H05H1/3489—Means for contact starting

Abstract

A plasma torch comprises a tubular nozzle having an end wall and an electrode in the nozzle having a nose end facing the end wall. The nose end and end wall provide a plasma gas chamber, and the end wall has a gas chamber outlet opening extending axially therethrough. The gas chamber has an entrance radially outwardly of the outlet opening and the end wall has a plurality of arcuate ribs thereon circumferentially spaced apart about said outlet opening and providing a plurality of arcuate gas directing channels for radially guiding the flow of plasma gas in a swirling flow pattern from the entrance to the outlet opening. The nozzle and nozzle mounting components provide an improved arrangement for cooling the torch tip and producing a gas shield about the plasma jet.
CA002231109A 1997-03-14 1998-03-04 Plasma arc torch Expired - Fee Related CA2231109C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/818,744 1997-03-14
US08/818,744 US5893985A (en) 1997-03-14 1997-03-14 Plasma arc torch

Publications (2)

Publication Number Publication Date
CA2231109A1 true CA2231109A1 (en) 1998-09-14
CA2231109C CA2231109C (en) 2001-05-08

Family

ID=25226303

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002231109A Expired - Fee Related CA2231109C (en) 1997-03-14 1998-03-04 Plasma arc torch

Country Status (12)

Country Link
US (2) US5893985A (en)
JP (1) JP3049495B2 (en)
KR (1) KR100259556B1 (en)
CN (1) CN1087204C (en)
AU (1) AU704619B2 (en)
CA (1) CA2231109C (en)
ID (1) ID20051A (en)
MY (1) MY132888A (en)
RU (2) RU2152560C2 (en)
SG (1) SG93269A1 (en)
TR (1) TR199800442A3 (en)
TW (1) TW403684B (en)

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Also Published As

Publication number Publication date
RU2152560C2 (en) 2000-07-10
CN1087204C (en) 2002-07-10
US5893985A (en) 1999-04-13
KR19980080231A (en) 1998-11-25
TW403684B (en) 2000-09-01
KR100259556B1 (en) 2000-06-15
CN1194889A (en) 1998-10-07
AU5839798A (en) 1998-10-01
SG93269A1 (en) 2002-12-17
TR199800442A2 (en) 1999-10-21
RU2177677C2 (en) 2001-12-27
US5965040A (en) 1999-10-12
CA2231109C (en) 2001-05-08
MY132888A (en) 2007-10-31
TR199800442A3 (en) 1999-10-21
ID20051A (en) 1998-09-17
AU704619B2 (en) 1999-04-29
JPH10263833A (en) 1998-10-06
JP3049495B2 (en) 2000-06-05

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