GB1453100A - Method of and apparatus for plasma working of conductive materials - Google Patents

Method of and apparatus for plasma working of conductive materials

Info

Publication number
GB1453100A
GB1453100A GB2771374A GB2771374A GB1453100A GB 1453100 A GB1453100 A GB 1453100A GB 2771374 A GB2771374 A GB 2771374A GB 2771374 A GB2771374 A GB 2771374A GB 1453100 A GB1453100 A GB 1453100A
Authority
GB
United Kingdom
Prior art keywords
nozzle
gas
plasma
electrode
cooling
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
Application number
GB2771374A
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.)
V N I PK I T I ELEKTROSVAROCHN
Original Assignee
V N I PK I T I ELEKTROSVAROCHN
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
Priority to FR7421473A priority Critical patent/FR2275270A1/en
Application filed by V N I PK I T I ELEKTROSVAROCHN filed Critical V N I PK I T I ELEKTROSVAROCHN
Priority to GB2771374A priority patent/GB1453100A/en
Priority to DE2429924A priority patent/DE2429924C3/en
Publication of GB1453100A publication Critical patent/GB1453100A/en
Expired 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
    • H05H1/3436—Hollow cathodes with internal coolant flow
    • 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
    • H05H1/3442—Cathodes with inserted tip

Landscapes

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

Abstract

1453100 Cutting by fusion VSES NI PROEKTNOKONSTRUKT I TEKH INST ELEKTROSVAROCH OBORUDOVANIA 21 June 1974 27713/74 Heading B3V [Also in Divisions H3-H5] A transferred arc plasma torch, in which the same gas both cools the nozzle and forms the plasma, has a non-consumbable electrode 3 consisting of an insert 4 (hafnium or an alloy thereof) in a holder 5 (copper or an alloy thereof) supported centrally in a nozzle 7 by an insulator 6, the nozzle and electrode defining a chamber 9 divided into two parts by a gas permeable partition 13, one part having an inlet for the cooling and plasma forming gas (oxygen or air) and both parts having outlets 8, 10. A shield 16 may surround the nozzle and part of the insulator 6 and then conducts cooling gas from outlets 10 around the nozzle to outlets 17. The electrode may have a hollow holder which admits the cooling and plasma forming gas to chamber 9 via apertures 19. The permeable partition 13 is either porous or pierced by through holes. Its function is to divide the gas flow such that more gas flows through the cooling apertures than through the plasma aperture 8. The ratio of resistance to flow between the partition 13, aperture 8 and apertures 10 lies between 1 : 2 : 12 and 1 : 3À5 : 20. The Fig. 1 embodiment is operated with an arc struck between insert 4 and workpiece 2. The Fig. 3 embodiment has an arc struck first between electrode 3 and copper nozzle 7 which is subsequently transferred to a workpiece. The torch is said to be portable and to find use in cutting of sheet metals, manual or mechanical fettling of castings and cleaning of rolled products.
GB2771374A 1974-06-21 1974-06-21 Method of and apparatus for plasma working of conductive materials Expired GB1453100A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7421473A FR2275270A1 (en) 1974-06-21 1974-06-20 DEVICE FOR WORKING WITH CONDUCTIVE PLASMA MATERIALS AND METHOD OF USING THE SAID DEVICE
GB2771374A GB1453100A (en) 1974-06-21 1974-06-21 Method of and apparatus for plasma working of conductive materials
DE2429924A DE2429924C3 (en) 1974-06-21 1974-06-21 Plasma torch for processing electrically conductive workpieces and processes for its operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2771374A GB1453100A (en) 1974-06-21 1974-06-21 Method of and apparatus for plasma working of conductive materials

Publications (1)

Publication Number Publication Date
GB1453100A true GB1453100A (en) 1976-10-20

Family

ID=10264091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2771374A Expired GB1453100A (en) 1974-06-21 1974-06-21 Method of and apparatus for plasma working of conductive materials

Country Status (3)

Country Link
DE (1) DE2429924C3 (en)
FR (1) FR2275270A1 (en)
GB (1) GB1453100A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794696A1 (en) * 1996-03-06 1997-09-10 Anton Wallner Plasma torch for gas shielded arc welding with water cooled non consumable electrode
EP0845929A1 (en) * 1996-11-29 1998-06-03 Tec.Mo S.r.l. Plasma arc cutting torch
WO2000028794A1 (en) * 1998-11-05 2000-05-18 Hypertherm, Inc. Plasma arc torch tip providing a substantially columnar shield flow
WO2009036015A2 (en) * 2007-09-10 2009-03-19 Hypertherm, Inc. Portable autonomous material processing system
US7754996B2 (en) 2003-04-11 2010-07-13 Hypertherm, Inc. Method and apparatus for alignment of components of a plasma arc torch
ITBO20100492A1 (en) * 2010-07-30 2012-01-31 Cebora Spa MONOGAS TORCH FOR PLASMA CUTTING.
US8203096B2 (en) 2006-09-11 2012-06-19 Hypertherm, Inc. Wearable autonomous material processing system
US9522438B2 (en) 2012-11-09 2016-12-20 Hypertherm, Inc. Battery-controlled plasma arc torch system
US9550251B2 (en) 2014-03-28 2017-01-24 Hypertherm, Inc. Power supply assembly for a plasma arc torch system
EP3457819A1 (en) * 2017-09-13 2019-03-20 Lincoln Global, Inc. High temperature isolating insert for plasma cutting torch
WO2018229308A3 (en) * 2017-06-12 2019-03-28 Kjellberg-Stiftung Electrodes for gas- and liquid-cooled plasma torches, system consisting of an electrode and a cooling tube, gas conducting unit, plasma torch, method for conducting gas in a plasma torch, and method for operating a plasma torch
US10736204B2 (en) 2016-10-21 2020-08-04 Hypertherm, Inc. Plasma power tool
CN112996211A (en) * 2021-02-09 2021-06-18 重庆新离子环境科技有限公司 Direct current arc plasma torch applied to hazardous waste treatment
TWI760729B (en) * 2020-04-21 2022-04-11 雷立強光電科技股份有限公司 Pen-type low-temperature plasma generator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643369C2 (en) * 1976-10-04 1982-07-01 Institut techničeskoj teplofiziki Akademii Nauk Ukrainskoj SSR, Kiev Unloading device
FR2534106A1 (en) * 1982-10-01 1984-04-06 Soudure Autogene Francaise MONOGAZ PLASMA TORCH
FR2534107A1 (en) * 1982-10-01 1984-04-06 Soudure Autogene Francaise ARC WORK FLASH WITH REMOVABLE COIFFE

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794696A1 (en) * 1996-03-06 1997-09-10 Anton Wallner Plasma torch for gas shielded arc welding with water cooled non consumable electrode
EP0845929A1 (en) * 1996-11-29 1998-06-03 Tec.Mo S.r.l. Plasma arc cutting torch
WO2000028794A1 (en) * 1998-11-05 2000-05-18 Hypertherm, Inc. Plasma arc torch tip providing a substantially columnar shield flow
US6207923B1 (en) 1998-11-05 2001-03-27 Hypertherm, Inc. Plasma arc torch tip providing a substantially columnar shield flow
US7754996B2 (en) 2003-04-11 2010-07-13 Hypertherm, Inc. Method and apparatus for alignment of components of a plasma arc torch
US8203096B2 (en) 2006-09-11 2012-06-19 Hypertherm, Inc. Wearable autonomous material processing system
US8890021B2 (en) 2006-09-11 2014-11-18 Hypertherm, Inc. Portable autonomous material processing system
US8350182B2 (en) 2006-09-11 2013-01-08 Hypertherm, Inc. Portable autonomous material processing system
WO2009036015A3 (en) * 2007-09-10 2009-11-26 Hypertherm, Inc. Portable autonomous material processing system
KR101387878B1 (en) 2007-09-10 2014-04-22 하이퍼썸, 인크. Portable autonomous material processing system
WO2009036015A2 (en) * 2007-09-10 2009-03-19 Hypertherm, Inc. Portable autonomous material processing system
ITBO20100492A1 (en) * 2010-07-30 2012-01-31 Cebora Spa MONOGAS TORCH FOR PLASMA CUTTING.
EP2418921A1 (en) * 2010-07-30 2012-02-15 Cebora S.P.A. Single-gas plasma cutting torch
US9522438B2 (en) 2012-11-09 2016-12-20 Hypertherm, Inc. Battery-controlled plasma arc torch system
US9550251B2 (en) 2014-03-28 2017-01-24 Hypertherm, Inc. Power supply assembly for a plasma arc torch system
US10736204B2 (en) 2016-10-21 2020-08-04 Hypertherm, Inc. Plasma power tool
WO2018229308A3 (en) * 2017-06-12 2019-03-28 Kjellberg-Stiftung Electrodes for gas- and liquid-cooled plasma torches, system consisting of an electrode and a cooling tube, gas conducting unit, plasma torch, method for conducting gas in a plasma torch, and method for operating a plasma torch
EP3457819A1 (en) * 2017-09-13 2019-03-20 Lincoln Global, Inc. High temperature isolating insert for plasma cutting torch
US10917961B2 (en) 2017-09-13 2021-02-09 Lincoln Global, Inc. High temperature isolating insert for plasma cutting torch
TWI760729B (en) * 2020-04-21 2022-04-11 雷立強光電科技股份有限公司 Pen-type low-temperature plasma generator
CN112996211A (en) * 2021-02-09 2021-06-18 重庆新离子环境科技有限公司 Direct current arc plasma torch applied to hazardous waste treatment
CN112996211B (en) * 2021-02-09 2023-12-26 重庆新离子环境科技有限公司 Direct-current arc plasma torch applied to hazardous waste treatment

Also Published As

Publication number Publication date
DE2429924A1 (en) 1976-01-08
DE2429924C3 (en) 1978-12-07
DE2429924B2 (en) 1978-03-30
FR2275270B1 (en) 1977-10-07
FR2275270A1 (en) 1976-01-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920621