FR2297927A1 - Thermochemical treatment of metal with ion bombardment - using a sealed discharge chamber, an electrode support and an arc detecting generator - Google Patents

Thermochemical treatment of metal with ion bombardment - using a sealed discharge chamber, an electrode support and an arc detecting generator

Info

Publication number
FR2297927A1
FR2297927A1 FR7501473A FR7501473A FR2297927A1 FR 2297927 A1 FR2297927 A1 FR 2297927A1 FR 7501473 A FR7501473 A FR 7501473A FR 7501473 A FR7501473 A FR 7501473A FR 2297927 A1 FR2297927 A1 FR 2297927A1
Authority
FR
France
Prior art keywords
treatment
effected
metal
discharge chamber
thermochemical treatment
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.)
Granted
Application number
FR7501473A
Other languages
French (fr)
Other versions
FR2297927B1 (en
Inventor
Michel Gaston Gantois
Jean Charles Guy Depecker
Henri Emile Michel
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7501473A priority Critical patent/FR2297927A1/en
Publication of FR2297927A1 publication Critical patent/FR2297927A1/en
Application granted granted Critical
Publication of FR2297927B1 publication Critical patent/FR2297927B1/fr
Granted legal-status Critical Current

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
    • H01J37/32917—Plasma diagnostics
    • H01J37/32935—Monitoring and controlling tubes by information coming from the object and/or discharge
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • 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

Abstract

Superficial thermochemical treatment of metallic pieces is effected by ionic bombardment, the pieces being arranged in a sealed metallic chamber contg. a reactive atmosphere of predetermined compsn. and pressure, and at a cathodic potential of predetermined value w.r.t. the vessel, the process being effected in two consecutive steps, heating the pierces and then treatment, the heating being effected under a pressure considerably lower than that in the second step, and under an electric tension considerably greater than that in the second step. The process, the apparatus, the reactor, the current input lead and the generator for the process are all independently claimed. A system can be set up in which the probability of sparking is suppressed to a lower level than in prior art while a higher energetic yield is obtd. while ensuring thermal conditions favourable to the stability of the discharge. The metal pieces treated can be quenched without contact with air immediately after treatment.
FR7501473A 1975-01-17 1975-01-17 Thermochemical treatment of metal with ion bombardment - using a sealed discharge chamber, an electrode support and an arc detecting generator Granted FR2297927A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7501473A FR2297927A1 (en) 1975-01-17 1975-01-17 Thermochemical treatment of metal with ion bombardment - using a sealed discharge chamber, an electrode support and an arc detecting generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7501473A FR2297927A1 (en) 1975-01-17 1975-01-17 Thermochemical treatment of metal with ion bombardment - using a sealed discharge chamber, an electrode support and an arc detecting generator

Publications (2)

Publication Number Publication Date
FR2297927A1 true FR2297927A1 (en) 1976-08-13
FR2297927B1 FR2297927B1 (en) 1977-09-30

Family

ID=9149973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501473A Granted FR2297927A1 (en) 1975-01-17 1975-01-17 Thermochemical treatment of metal with ion bombardment - using a sealed discharge chamber, an electrode support and an arc detecting generator

Country Status (1)

Country Link
FR (1) FR2297927A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332337A1 (en) * 1975-11-21 1977-06-17 Vide & Traitement Sa Multipurpose furnace for ion implantation in metals - for surface treatments including carburizing and quenching
FR2335614A1 (en) * 1975-12-18 1977-07-15 Kawasaki Heavy Ind Ltd LUMINESCENT DISCHARGE NITRURATION UNIT
FR2375755A1 (en) * 1976-12-22 1978-07-21 Airco Inc SATURATED INDUCTION COIL POWER SOURCE
FR2403645A2 (en) * 1977-09-14 1979-04-13 Vide & Traitement Sa Furnace for thermochemical metal treatment - ensures ion bombardment by anodes and cathodes without arc discharge
FR2416439A1 (en) * 1978-01-31 1979-08-31 Blinov Viktor Electric furnace using glow discharge - for chemical treatment and hardening of workpieces, esp. nitriding and/or carburising
DE3007420A1 (en) * 1979-03-11 1980-09-25 Vmei Lenin Nis PLANT FOR CHEMICAL-THERMAL TREATMENT OF METAL WORKPIECES WHEN GLIMMER LOADING
FR2498205A1 (en) * 1981-01-17 1982-07-23 Kloeckner Ionon THERMAL TREATMENT INSTALLATION FOR METALLIC PARTS COMPRISING A VACUUMABLE CHAMBER
EP0186865A2 (en) * 1984-12-29 1986-07-09 V M E I "Lenin" Device for interrupting arc discharges in a gas discharge vessel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1147934A (en) * 1953-12-09 1957-12-02 Berghaus Elektrophysik Anst Method and apparatus for initiating and carrying out processes by means of electric cores
DE1036601B (en) * 1956-06-05 1958-08-14 Hoerder Huettenunion Ag Device for automatic regulation of the glow discharge in discharge vessels for technical processes, for example for the surface treatment of workpieces
DE1065951B (en) * 1959-09-24

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065951B (en) * 1959-09-24
FR1147934A (en) * 1953-12-09 1957-12-02 Berghaus Elektrophysik Anst Method and apparatus for initiating and carrying out processes by means of electric cores
DE1036601B (en) * 1956-06-05 1958-08-14 Hoerder Huettenunion Ag Device for automatic regulation of the glow discharge in discharge vessels for technical processes, for example for the surface treatment of workpieces

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332337A1 (en) * 1975-11-21 1977-06-17 Vide & Traitement Sa Multipurpose furnace for ion implantation in metals - for surface treatments including carburizing and quenching
FR2335614A1 (en) * 1975-12-18 1977-07-15 Kawasaki Heavy Ind Ltd LUMINESCENT DISCHARGE NITRURATION UNIT
FR2375755A1 (en) * 1976-12-22 1978-07-21 Airco Inc SATURATED INDUCTION COIL POWER SOURCE
FR2403645A2 (en) * 1977-09-14 1979-04-13 Vide & Traitement Sa Furnace for thermochemical metal treatment - ensures ion bombardment by anodes and cathodes without arc discharge
FR2416439A1 (en) * 1978-01-31 1979-08-31 Blinov Viktor Electric furnace using glow discharge - for chemical treatment and hardening of workpieces, esp. nitriding and/or carburising
DE3007420A1 (en) * 1979-03-11 1980-09-25 Vmei Lenin Nis PLANT FOR CHEMICAL-THERMAL TREATMENT OF METAL WORKPIECES WHEN GLIMMER LOADING
FR2498205A1 (en) * 1981-01-17 1982-07-23 Kloeckner Ionon THERMAL TREATMENT INSTALLATION FOR METALLIC PARTS COMPRISING A VACUUMABLE CHAMBER
EP0186865A2 (en) * 1984-12-29 1986-07-09 V M E I "Lenin" Device for interrupting arc discharges in a gas discharge vessel
EP0186865A3 (en) * 1984-12-29 1988-05-18 V M E I "Lenin" Device for interrupting arc discharges in a gas discharge vessel

Also Published As

Publication number Publication date
FR2297927B1 (en) 1977-09-30

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