IT973517B - PROCEDURE AND DEVICE FOR THE TREATMENT OF A MATERIAL BY MEANS OF AN ARC DISCHARGE PLASMA - Google Patents

PROCEDURE AND DEVICE FOR THE TREATMENT OF A MATERIAL BY MEANS OF AN ARC DISCHARGE PLASMA

Info

Publication number
IT973517B
IT973517B IT53981/72A IT5398172A IT973517B IT 973517 B IT973517 B IT 973517B IT 53981/72 A IT53981/72 A IT 53981/72A IT 5398172 A IT5398172 A IT 5398172A IT 973517 B IT973517 B IT 973517B
Authority
IT
Italy
Prior art keywords
procedure
treatment
arc discharge
discharge plasma
plasma
Prior art date
Application number
IT53981/72A
Other languages
Italian (it)
Original Assignee
Max Planck Gesellschaft
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 Max Planck Gesellschaft filed Critical Max Planck Gesellschaft
Application granted granted Critical
Publication of IT973517B publication Critical patent/IT973517B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32055—Arc discharge
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/22—Remelting metals with heating by wave energy or particle radiation
    • C22B9/226—Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32431—Constructional details of the reactor
    • H01J37/32623—Mechanical discharge control means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32431—Constructional details of the reactor
    • H01J37/3266—Magnetic control means
    • 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
    • H05H1/3431—Coaxial cylindrical electrodes
    • 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
    • H05H1/40—Details, e.g. electrodes, nozzles using applied magnetic fields, e.g. for focusing or rotating the arc

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Plasma Technology (AREA)
  • Chemical Vapour Deposition (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Arc Welding In General (AREA)
IT53981/72A 1971-11-20 1972-11-13 PROCEDURE AND DEVICE FOR THE TREATMENT OF A MATERIAL BY MEANS OF AN ARC DISCHARGE PLASMA IT973517B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2157606A DE2157606C3 (en) 1971-11-20 1971-11-20 Method and device for the heat treatment of a material by means of an arc discharge plasma
DE2237378A DE2237378A1 (en) 1971-11-20 1972-07-29 PROCESS FOR EXTRACTION OF METAL BY REDUCING A METAL COMPOUND IN AN ARC DISCHARGE PLASMA

Publications (1)

Publication Number Publication Date
IT973517B true IT973517B (en) 1974-06-10

Family

ID=25762046

Family Applications (1)

Application Number Title Priority Date Filing Date
IT53981/72A IT973517B (en) 1971-11-20 1972-11-13 PROCEDURE AND DEVICE FOR THE TREATMENT OF A MATERIAL BY MEANS OF AN ARC DISCHARGE PLASMA

Country Status (10)

Country Link
US (2) US3852061A (en)
JP (1) JPS4863941A (en)
BE (1) BE791550A (en)
DE (2) DE2157606C3 (en)
FR (1) FR2160519B1 (en)
GB (1) GB1418641A (en)
IT (1) IT973517B (en)
LU (1) LU66498A1 (en)
NL (1) NL7215108A (en)
NO (1) NO131795C (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980467A (en) * 1973-02-16 1976-09-14 Camacho Salvador L Method of operating a batch type annealing furnace using a plasma heat source
US3974245A (en) * 1973-12-17 1976-08-10 Gte Sylvania Incorporated Process for producing free flowing powder and product
GB1511832A (en) * 1974-05-07 1978-05-24 Tetronics Res & Dev Co Ltd Arc furnaces and to methods of treating materials in such furnaces
US3944412A (en) * 1974-09-18 1976-03-16 Hsin Liu Method for recovering metals
US4169962A (en) * 1974-10-02 1979-10-02 Daidoseiko Kabushikikaisha Heat treating apparatus
US3989511A (en) * 1975-03-10 1976-11-02 Westinghouse Electric Corporation Metal powder production by direct reduction in an arc heater
US4002466A (en) * 1975-11-03 1977-01-11 Bethlehem Steel Corporation Method of reducing ores
IT1055884B (en) * 1976-02-17 1982-01-11 Montedison Spa PLASMA ARC PROCEDURE OF METALLIC AND SIMILAR CERAMIC PRODUCTS
US4234334A (en) * 1979-01-10 1980-11-18 Bethlehem Steel Corporation Arc control in plasma arc reactors
FR2446324A1 (en) * 1979-01-15 1980-08-08 Karlovitz Bela Thermal redn. of metal oxide(s) - esp. aluminium oxide by discharging oxide powder into reactor to create vortex and applying electrical discharge
US4361441A (en) * 1979-04-17 1982-11-30 Plasma Holdings N.V. Treatment of matter in low temperature plasmas
US4431612A (en) * 1982-06-03 1984-02-14 Electro-Petroleum, Inc. Apparatus for the decomposition of hazardous materials and the like
US4711661A (en) * 1986-09-08 1987-12-08 Gte Products Corporation Spherical copper based powder particles and process for producing same
US4711660A (en) * 1986-09-08 1987-12-08 Gte Products Corporation Spherical precious metal based powder particles and process for producing same
US4670047A (en) * 1986-09-12 1987-06-02 Gte Products Corporation Process for producing finely divided spherical metal powders
US5135565A (en) * 1991-04-16 1992-08-04 The Boc Group, Inc. Recovery of aluminum from dross using the plasma torch
US5984444A (en) * 1997-06-26 1999-11-16 James M. Hawley Electrostatic three dimensional printer
AT414215B (en) 2003-02-12 2006-10-15 Peter Ziger ANNEX TO PLASMA PROCESSING
US20050035085A1 (en) * 2003-08-13 2005-02-17 Stowell William Randolph Apparatus and method for reducing metal oxides on superalloy articles
JP4955027B2 (en) * 2009-04-02 2012-06-20 クリーン・テクノロジー株式会社 Control method of plasma by magnetic field in exhaust gas treatment device
CN114433804B (en) * 2022-04-08 2022-07-05 北京奥邦新材料有限公司 Tundish plasma heating arc control method, device and system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005859A (en) * 1958-04-24 1961-10-24 Nat Res Corp Production of metals
US3080626A (en) * 1960-05-27 1963-03-12 Stauffer Chemical Co Electron-beam furnace with magnetic guidance and flux concentrator
US3304169A (en) * 1960-08-01 1967-02-14 Union Carbide Corp Method of deoxidizing metals
US3361927A (en) * 1963-04-22 1968-01-02 Giannini Scient Corp Plasma generating apparatus having an arc restricting region
GB1115657A (en) * 1964-10-29 1968-05-29 Westinghouse Electric Corp Non-consumable arc electrode
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
US3547622A (en) * 1968-06-12 1970-12-15 Pennwalt Corp D.c. powered plasma arc method and apparatus for refining molten metal
CH525705A (en) * 1968-12-24 1972-07-31 Lonza Ag Use of vortex-stabilized plasma torches to carry out chemical reactions
US3671220A (en) * 1969-05-19 1972-06-20 Nordstjernan Rederi Ab Process for the production of powdered metals
DE2110274C2 (en) * 1971-03-04 1973-01-04 Fried. Krupp Gmbh, 4300 Essen Device for melting metal sponges using inert gas plasmas

Also Published As

Publication number Publication date
US3852061A (en) 1974-12-03
DE2237378A1 (en) 1974-02-14
DE2157606C3 (en) 1974-04-04
FR2160519B1 (en) 1978-04-21
US3851136A (en) 1974-11-26
JPS4863941A (en) 1973-09-05
BE791550A (en) 1973-03-16
GB1418641A (en) 1975-12-24
FR2160519A1 (en) 1973-06-29
DE2157606A1 (en) 1973-05-24
NL7215108A (en) 1973-05-22
NO131795C (en) 1975-07-30
NO131795B (en) 1975-04-21
DE2157606B2 (en) 1973-08-30
LU66498A1 (en) 1973-02-01

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