GB2359096B - Apparatus and process for the production of fine powders - Google Patents

Apparatus and process for the production of fine powders

Info

Publication number
GB2359096B
GB2359096B GB0003081A GB0003081A GB2359096B GB 2359096 B GB2359096 B GB 2359096B GB 0003081 A GB0003081 A GB 0003081A GB 0003081 A GB0003081 A GB 0003081A GB 2359096 B GB2359096 B GB 2359096B
Authority
GB
United Kingdom
Prior art keywords
production
fine powders
powders
fine
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 - Fee Related
Application number
GB0003081A
Other versions
GB0003081D0 (en
GB2359096A (en
Inventor
David Edward Deegan
Christopher David Chapman
Timothy Paul Johnson
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.)
Tetronics International Ltd
Original Assignee
Tetronics Ltd
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 Tetronics Ltd filed Critical Tetronics Ltd
Priority to GB0003081A priority Critical patent/GB2359096B/en
Publication of GB0003081D0 publication Critical patent/GB0003081D0/en
Priority to CNB018047971A priority patent/CN100418674C/en
Priority to JP2001557715A priority patent/JP2003522299A/en
Priority to PCT/GB2001/000553 priority patent/WO2001058625A1/en
Priority to KR1020027010323A priority patent/KR100784576B1/en
Priority to RU2002123919/02A priority patent/RU2263006C2/en
Priority to DE2001601840 priority patent/DE60101840T2/en
Priority to EP04000974A priority patent/EP1415741A3/en
Priority to IL15111401A priority patent/IL151114A0/en
Priority to AU2001232063A priority patent/AU2001232063A1/en
Priority to CA002399581A priority patent/CA2399581A1/en
Priority to EP03024817A priority patent/EP1398100A3/en
Priority to AT01904146T priority patent/ATE258092T1/en
Priority to US10/203,467 priority patent/US7022155B2/en
Priority to EP01904146A priority patent/EP1257376B1/en
Publication of GB2359096A publication Critical patent/GB2359096A/en
Priority to IL151114A priority patent/IL151114A/en
Application granted granted Critical
Publication of GB2359096B publication Critical patent/GB2359096B/en
Priority to US11/304,705 priority patent/US20060096417A1/en
Priority to US11/304,633 priority patent/US7727460B2/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
    • H05H1/48—Generating plasma using an arc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
    • 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
    • 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
    • H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
    • B01J2219/0227—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components of graphite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0809—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes employing two or more electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0816—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes involving moving electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0816—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes involving moving electrodes
    • B01J2219/082—Sliding electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0824—Details relating to the shape of the electrodes
    • B01J2219/0826—Details relating to the shape of the electrodes essentially linear
    • B01J2219/083—Details relating to the shape of the electrodes essentially linear cylindrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0824—Details relating to the shape of the electrodes
    • B01J2219/0835—Details relating to the shape of the electrodes substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0837—Details relating to the material of the electrodes
    • B01J2219/0839—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
    • B01J2219/0837—Details relating to the material of the electrodes
    • B01J2219/0841—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0869—Feeding or evacuating the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0871—Heating or cooling of the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873—Materials to be treated
    • B01J2219/0879—Solid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873—Materials to be treated
    • B01J2219/0881—Two or more materials
    • B01J2219/0886—Gas-solid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0894—Processes carried out in the presence of a plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0894—Processes carried out in the presence of a plasma
    • B01J2219/0898—Hot plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
GB0003081A 2000-02-10 2000-02-10 Apparatus and process for the production of fine powders Expired - Fee Related GB2359096B (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
GB0003081A GB2359096B (en) 2000-02-10 2000-02-10 Apparatus and process for the production of fine powders
CA002399581A CA2399581A1 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
AT01904146T ATE258092T1 (en) 2000-02-10 2001-02-09 PLASMA REACTOR FOR PRODUCING FINE POWDER
PCT/GB2001/000553 WO2001058625A1 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
KR1020027010323A KR100784576B1 (en) 2000-02-10 2001-02-09 Process for producing powders and plasma arc reactor for the production of fine powders
RU2002123919/02A RU2263006C2 (en) 2000-02-10 2001-02-09 Plasma-arc reactor and fine powder producing method
DE2001601840 DE60101840T2 (en) 2000-02-10 2001-02-09 PLASMA REACTOR FOR PRODUCING FINE POWDER
EP04000974A EP1415741A3 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
IL15111401A IL151114A0 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
AU2001232063A AU2001232063A1 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
CNB018047971A CN100418674C (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
EP03024817A EP1398100A3 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
JP2001557715A JP2003522299A (en) 2000-02-10 2001-02-09 Plasma arc reactor for producing fine powder
US10/203,467 US7022155B2 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
EP01904146A EP1257376B1 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
IL151114A IL151114A (en) 2000-02-10 2002-08-07 Plasma arc reactor for the production of fine powders
US11/304,705 US20060096417A1 (en) 2000-02-10 2005-12-16 Plasma arc reactor for the production of fine powders
US11/304,633 US7727460B2 (en) 2000-02-10 2005-12-16 Plasma arc reactor for the production of fine powders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0003081A GB2359096B (en) 2000-02-10 2000-02-10 Apparatus and process for the production of fine powders

Publications (3)

Publication Number Publication Date
GB0003081D0 GB0003081D0 (en) 2000-03-29
GB2359096A GB2359096A (en) 2001-08-15
GB2359096B true GB2359096B (en) 2004-07-21

Family

ID=9885338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0003081A Expired - Fee Related GB2359096B (en) 2000-02-10 2000-02-10 Apparatus and process for the production of fine powders

Country Status (1)

Country Link
GB (1) GB2359096B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102615289A (en) * 2011-01-28 2012-08-01 杭州华纳塔器科技有限公司 Evaporation-condensation method for preparing superfine metal powder
JP5821579B2 (en) * 2011-12-01 2015-11-24 昭栄化学工業株式会社 Plasma equipment for metal powder production
CN112296343B (en) * 2020-09-04 2023-05-26 武汉科技大学 Method for preparing superfine metal powder by hollow electrode smelting

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989512A (en) * 1974-06-07 1976-11-02 National Research Development Corporation Plasma heat treatment means and method
US4238427A (en) * 1979-04-05 1980-12-09 Chisholm Douglas S Atomization of molten metals
US4877937A (en) * 1986-11-12 1989-10-31 Castolin S.A. Plasma spray torch
JPH03264601A (en) * 1990-03-14 1991-11-25 Daido Steel Co Ltd Manufacture of hard particle dispersed alloy powder and itself
GB2273027A (en) * 1992-11-26 1994-06-01 Atomic Energy Authority Uk Electrode arrangement in a microwave plasma generator
US5332885A (en) * 1991-02-21 1994-07-26 Plasma Technik Ag Plasma spray apparatus for spraying powdery or gaseous material
JPH06299209A (en) * 1993-04-14 1994-10-25 Sansha Electric Mfg Co Ltd Formation of powder granule of magnetic material
US5408066A (en) * 1993-10-13 1995-04-18 Trapani; Richard D. Powder injection apparatus for a plasma spray gun
US5420391A (en) * 1994-06-20 1995-05-30 Metcon Services Ltd. Plasma torch with axial injection of feedstock
US5481080A (en) * 1991-12-12 1996-01-02 Kvaerner Engineering A.S. Plasma torch with a lead-in tube
JPH08243756A (en) * 1995-03-03 1996-09-24 Mitsubishi Materials Corp Welding torch for cladding by plasma arc welding and method for cladding by welding
US5593740A (en) * 1995-01-17 1997-01-14 Synmatix Corporation Method and apparatus for making carbon-encapsulated ultrafine metal particles
EP0766502A1 (en) * 1995-09-28 1997-04-02 Sulzer Metco (Irvine) Inc. Single cathode plasma gun with powder feed along central axis of exit barrel
JPH10256528A (en) * 1997-03-10 1998-09-25 Agency Of Ind Science & Technol Method for generating layered aluminum fine particles and its application

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989512A (en) * 1974-06-07 1976-11-02 National Research Development Corporation Plasma heat treatment means and method
US4238427A (en) * 1979-04-05 1980-12-09 Chisholm Douglas S Atomization of molten metals
US4877937A (en) * 1986-11-12 1989-10-31 Castolin S.A. Plasma spray torch
JPH03264601A (en) * 1990-03-14 1991-11-25 Daido Steel Co Ltd Manufacture of hard particle dispersed alloy powder and itself
US5332885A (en) * 1991-02-21 1994-07-26 Plasma Technik Ag Plasma spray apparatus for spraying powdery or gaseous material
US5481080A (en) * 1991-12-12 1996-01-02 Kvaerner Engineering A.S. Plasma torch with a lead-in tube
GB2273027A (en) * 1992-11-26 1994-06-01 Atomic Energy Authority Uk Electrode arrangement in a microwave plasma generator
JPH06299209A (en) * 1993-04-14 1994-10-25 Sansha Electric Mfg Co Ltd Formation of powder granule of magnetic material
US5408066A (en) * 1993-10-13 1995-04-18 Trapani; Richard D. Powder injection apparatus for a plasma spray gun
US5420391A (en) * 1994-06-20 1995-05-30 Metcon Services Ltd. Plasma torch with axial injection of feedstock
US5420391B1 (en) * 1994-06-20 1998-06-09 Metcon Services Ltd Plasma torch with axial injection of feedstock
US5593740A (en) * 1995-01-17 1997-01-14 Synmatix Corporation Method and apparatus for making carbon-encapsulated ultrafine metal particles
JPH08243756A (en) * 1995-03-03 1996-09-24 Mitsubishi Materials Corp Welding torch for cladding by plasma arc welding and method for cladding by welding
EP0766502A1 (en) * 1995-09-28 1997-04-02 Sulzer Metco (Irvine) Inc. Single cathode plasma gun with powder feed along central axis of exit barrel
JPH10256528A (en) * 1997-03-10 1998-09-25 Agency Of Ind Science & Technol Method for generating layered aluminum fine particles and its application

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
WPI Accession no 92-013623 & JP 03 264 601 A *
WPI Accession no 95-012138 & JP 06 299 209 A *
WPI Accession no 96-480689 & JP 08 243 756 A *

Also Published As

Publication number Publication date
GB0003081D0 (en) 2000-03-29
GB2359096A (en) 2001-08-15

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