GB0020106D0 - Apparatus and process for the production of fine powders - Google Patents

Apparatus and process for the production of fine powders

Info

Publication number
GB0020106D0
GB0020106D0 GBGB0020106.1A GB0020106A GB0020106D0 GB 0020106 D0 GB0020106 D0 GB 0020106D0 GB 0020106 A GB0020106 A GB 0020106A GB 0020106 D0 GB0020106 D0 GB 0020106D0
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.)
Withdrawn
Application number
GBGB0020106.1A
Other versions
GB2365876A (en
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 GB0020106A priority Critical patent/GB2365876A/en
Publication of GB0020106D0 publication Critical patent/GB0020106D0/en
Priority to IL15111401A priority patent/IL151114A0/en
Priority to RU2002123919/02A priority patent/RU2263006C2/en
Priority to EP03024817A priority patent/EP1398100A3/en
Priority to KR1020027010323A priority patent/KR100784576B1/en
Priority to CA002399581A priority patent/CA2399581A1/en
Priority to US10/203,467 priority patent/US7022155B2/en
Priority to AT01904146T priority patent/ATE258092T1/en
Priority to AU2001232063A priority patent/AU2001232063A1/en
Priority to PCT/GB2001/000553 priority patent/WO2001058625A1/en
Priority to EP01904146A priority patent/EP1257376B1/en
Priority to CNB018047971A priority patent/CN100418674C/en
Priority to JP2001557715A priority patent/JP2003522299A/en
Priority to EP04000974A priority patent/EP1415741A3/en
Priority to DE2001601840 priority patent/DE60101840T2/en
Publication of GB2365876A publication Critical patent/GB2365876A/en
Priority to IL151114A priority patent/IL151114A/en
Priority to US11/304,633 priority patent/US7727460B2/en
Priority to US11/304,705 priority patent/US20060096417A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/26Plasma torches
    • H05H1/32Plasma torches using an arc
    • H05H1/34Details, e.g. electrodes, nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/087Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/12Making metallic powder or suspensions thereof using physical processes starting from gaseous material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/14Making metallic powder or suspensions thereof using physical processes using electric discharge
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/26Plasma torches
    • H05H1/32Plasma torches using an arc
    • H05H1/34Details, e.g. electrodes, nozzles
    • H05H1/3489Means for contact starting
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/26Plasma torches
    • H05H1/32Plasma torches using an arc
    • H05H1/42Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02Apparatus characterised by their chemically-resistant properties
    • B01J2219/0204Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
    • B01J2219/0227Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components of graphite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0809Processes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0816Processes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0816Processes 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
    • B01J2219/082Sliding electrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0824Details relating to the shape of the electrodes
    • B01J2219/0826Details relating to the shape of the electrodes essentially linear
    • B01J2219/083Details relating to the shape of the electrodes essentially linear cylindrical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0824Details relating to the shape of the electrodes
    • B01J2219/0835Details relating to the shape of the electrodes substantially flat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0837Details relating to the material of the electrodes
    • B01J2219/0839Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0803Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J2219/0805Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • B01J2219/0807Processes 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
    • B01J2219/0837Details relating to the material of the electrodes
    • B01J2219/0841Metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0869Feeding or evacuating the reactor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0871Heating or cooling of the reactor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873Materials to be treated
    • B01J2219/0879Solid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873Materials to be treated
    • B01J2219/0881Two or more materials
    • B01J2219/0886Gas-solid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0894Processes carried out in the presence of a plasma
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0894Processes carried out in the presence of a plasma
    • B01J2219/0898Hot plasma
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00Aspects linked to processes or compositions used in powder metallurgy
GB0020106A 2000-02-10 2000-08-15 Making nano-sized powder using a plasma arc reactor Withdrawn GB2365876A (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
GB0020106A GB2365876A (en) 2000-08-15 2000-08-15 Making nano-sized powder using a plasma arc reactor
DE2001601840 DE60101840T2 (en) 2000-02-10 2001-02-09 PLASMA REACTOR FOR PRODUCING FINE POWDER
AU2001232063A AU2001232063A1 (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
EP03024817A EP1398100A3 (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
CA002399581A CA2399581A1 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
US10/203,467 US7022155B2 (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
IL15111401A IL151114A0 (en) 2000-02-10 2001-02-09 Plasma arc reactor for the production of fine powders
PCT/GB2001/000553 WO2001058625A1 (en) 2000-02-10 2001-02-09 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
CNB018047971A CN100418674C (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
EP04000974A EP1415741A3 (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
US11/304,633 US7727460B2 (en) 2000-02-10 2005-12-16 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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0020106A GB2365876A (en) 2000-08-15 2000-08-15 Making nano-sized powder using a plasma arc reactor

Publications (2)

Publication Number Publication Date
GB0020106D0 true GB0020106D0 (en) 2000-10-04
GB2365876A GB2365876A (en) 2002-02-27

Family

ID=9897666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0020106A Withdrawn GB2365876A (en) 2000-02-10 2000-08-15 Making nano-sized powder using a plasma arc reactor

Country Status (1)

Country Link
GB (1) GB2365876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112891967A (en) * 2021-01-25 2021-06-04 钟笔 Ultrafine powder particle aggregation cooling pipe type structure and ultrafine powder particle forming method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1760043A1 (en) 2005-09-06 2007-03-07 ETH Zürich, ETH Transfer Reducing flame spray pyrolysis method for the production of metal, non-oxidic, ceramic and reduced metal oxide powders and nano-powders
JP6924944B2 (en) * 2017-04-05 2021-08-25 パナソニックIpマネジメント株式会社 Fine particle manufacturing equipment and fine particle manufacturing method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE639079A (en) * 1962-10-26
DE1220058B (en) * 1965-06-28 1966-06-30 Kernforschung Gmbh Ges Fuer Method and device for the heat treatment of powdery substances, in particular for melting the cores of high-melting substances, by means of a high-temperature plasma
GB1164810A (en) * 1966-12-19 1969-09-24 Atomic Energy Authority Uk Improvements in or relating to Production of Particulate Refractory Material
GB1339054A (en) * 1971-05-13 1973-11-28 Vos N I Gornorudny I Vostnigri Apparatus for and a method of comminuting materials
JPS5546603B2 (en) * 1973-10-05 1980-11-25
JPH062882B2 (en) * 1985-06-20 1994-01-12 大同特殊鋼株式会社 Particle production equipment
JPS63147812A (en) * 1986-12-10 1988-06-20 Nippon Sheet Glass Co Ltd Production of silicon carbide powder
US5593740A (en) * 1995-01-17 1997-01-14 Synmatix Corporation Method and apparatus for making carbon-encapsulated ultrafine metal particles
US6063243A (en) * 1995-02-14 2000-05-16 The Regents Of The Univeristy Of California Method for making nanotubes and nanoparticles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112891967A (en) * 2021-01-25 2021-06-04 钟笔 Ultrafine powder particle aggregation cooling pipe type structure and ultrafine powder particle forming method

Also Published As

Publication number Publication date
GB2365876A (en) 2002-02-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)