GB1160882A - Improvements relating to Plasma Torches - Google Patents
Improvements relating to Plasma TorchesInfo
- Publication number
- GB1160882A GB1160882A GB45096/65A GB4509665A GB1160882A GB 1160882 A GB1160882 A GB 1160882A GB 45096/65 A GB45096/65 A GB 45096/65A GB 4509665 A GB4509665 A GB 4509665A GB 1160882 A GB1160882 A GB 1160882A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plasma
- torches
- electrodes
- working
- inch
- 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
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
- H05H1/36—Circuit arrangements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma Technology (AREA)
- Arc Welding In General (AREA)
Abstract
1,160,882. Arc blow-torches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 Oct., 1966 [25 Oct., 1965], No. 45096/65. Heading H5H. The unsymmetrical working of a plasma torch on A.C., normally resulting in increased electrode wear, is deliberately exaggerated by suitable selection of electrode materials and spacing in relation to the composition and rate of flow of plasma-forming gas so that electric arcs are struck only during similar half-cycles and the electrodes have the low-wear characteristics usually associated with plasma torches operated on D.C. For example, a pilot plasma is formed by injecting argon at 50 p.s.i. through inlet 14 and applying a rectified voltage between electrodes 10 and 2; nitrogen at 45 p.s.i. is fed through inlet 9 and forms the main plasma with unidirectional current flow from A.C. source 17 to electrodes 2 and 3. The electrodes 2 and 3 are of copper and the extensions 13 and 8, as shown, of thoriated tungsten, spaced respectively 9/ 32 inch and 5/ 32 inch from electrodes 2 and 3, and inlets 9 and 14 are of the order of 0À05 inch. The plasma may be used as a conductive column for transferred working on an electrically conductive workpiece or charge by making connections as in Figs. 2 or 3 (not shown). Two torches may be used to take full-wave current from the supply by cross-connection (as in Fig. 4, not shown) or by using a tapped transformer (as in Fig. 5, not shown), and the corresponding connections for transferred working are as in Figs. 6 and 7 (not shown). Transferred working without a fixed connection to the workpiece may be obtained by using four torches co-operating in pairs as indicated in Fig. 8 (not shown), or, for three-phase working, six torches as in Fig. 9 (not shown).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB45096/65A GB1160882A (en) | 1965-10-25 | 1965-10-25 | Improvements relating to Plasma Torches |
US588172A US3536885A (en) | 1965-10-25 | 1966-10-20 | Plasma torch assemblies |
DE19681764340 DE1764340A1 (en) | 1965-10-25 | 1968-05-20 | Plasma torch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB45096/65A GB1160882A (en) | 1965-10-25 | 1965-10-25 | Improvements relating to Plasma Torches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1160882A true GB1160882A (en) | 1969-08-06 |
Family
ID=10435870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB45096/65A Expired GB1160882A (en) | 1965-10-25 | 1965-10-25 | Improvements relating to Plasma Torches |
Country Status (3)
Country | Link |
---|---|
US (1) | US3536885A (en) |
DE (1) | DE1764340A1 (en) |
GB (1) | GB1160882A (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3770935A (en) * | 1970-12-25 | 1973-11-06 | Rikagaku Kenkyusho | Plasma jet generator |
FR2232395B1 (en) * | 1973-06-06 | 1976-05-28 | Soudure Autogene Francaise | |
US4311897A (en) * | 1979-08-28 | 1982-01-19 | Union Carbide Corporation | Plasma arc torch and nozzle assembly |
US4317068A (en) * | 1979-10-01 | 1982-02-23 | Combustion Electromagnetics, Inc. | Plasma jet ignition system |
JPH0763033B2 (en) * | 1984-06-27 | 1995-07-05 | 吉明 荒田 | High power plasma jet generator |
SE447461B (en) * | 1985-04-25 | 1986-11-17 | Npk Za Kontrolno Zavaratschni | COMPOSITION NOZZLE COVER |
US4626648A (en) * | 1985-07-03 | 1986-12-02 | Browning James A | Hybrid non-transferred-arc plasma torch system and method of operating same |
US4674683A (en) * | 1986-05-06 | 1987-06-23 | The Perkin-Elmer Corporation | Plasma flame spray gun method and apparatus with adjustable ratio of radial and tangential plasma gas flow |
US4764656A (en) * | 1987-05-15 | 1988-08-16 | Browning James A | Transferred-arc plasma apparatus and process with gas heating in excess of anode heating at the workpiece |
US5017752A (en) * | 1990-03-02 | 1991-05-21 | Esab Welding Products, Inc. | Plasma arc torch starting process having separated generated flows of non-oxidizing and oxidizing gas |
US6677551B2 (en) | 1998-10-23 | 2004-01-13 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6326583B1 (en) | 2000-03-31 | 2001-12-04 | Innerlogic, Inc. | Gas control system for a plasma arc torch |
US6163009A (en) * | 1998-10-23 | 2000-12-19 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6498317B2 (en) | 1998-10-23 | 2002-12-24 | Innerlogic, Inc. | Process for operating a plasma arc torch |
GB0403797D0 (en) * | 2004-02-20 | 2004-03-24 | Boc Group Plc | Gas abatement |
CA2527764C (en) * | 2005-02-11 | 2014-03-25 | Suelzer Metco Ag | An apparatus for thermal spraying |
DE102011002183B4 (en) * | 2010-10-15 | 2014-04-30 | Industrieanlagen- Betriebsgesellschaft mit beschränkter Haftung | Apparatus and method for plasma-based production of nanoscale particles and / or for coating surfaces |
WO2012143024A1 (en) * | 2011-04-20 | 2012-10-26 | Industrieanlagen-Betriebsgesellschaft Mbh | Device and method for the plasma-assisted production of nanoscale particles and/or for coating surfaces |
US9949356B2 (en) | 2012-07-11 | 2018-04-17 | Lincoln Global, Inc. | Electrode for a plasma arc cutting torch |
US10189108B2 (en) | 2015-08-07 | 2019-01-29 | Lincoln Global, Inc. | Hot-wire welding assembly for deep and narrow recessed gaps |
JP6895636B2 (en) * | 2016-05-13 | 2021-06-30 | パナソニックIpマネジメント株式会社 | Liquid processing equipment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756311A (en) * | 1954-03-24 | 1956-07-24 | Union Carbide & Carbon Corp | High-speed tandem arc working |
US3248513A (en) * | 1961-10-06 | 1966-04-26 | Soudure Electr Autogene | Equipment for forming high temperature plasmas |
US3373306A (en) * | 1964-10-27 | 1968-03-12 | Northern Natural Gas Co | Method and apparatus for the control of ionization in a distributed electrical discharge |
-
1965
- 1965-10-25 GB GB45096/65A patent/GB1160882A/en not_active Expired
-
1966
- 1966-10-20 US US588172A patent/US3536885A/en not_active Expired - Lifetime
-
1968
- 1968-05-20 DE DE19681764340 patent/DE1764340A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3536885A (en) | 1970-10-27 |
DE1764340A1 (en) | 1971-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |