GB1262897A - Improvements in or relating to methods and apparatus for nitriding metal parts by ionization - Google Patents

Improvements in or relating to methods and apparatus for nitriding metal parts by ionization

Info

Publication number
GB1262897A
GB1262897A GB142570A GB142570A GB1262897A GB 1262897 A GB1262897 A GB 1262897A GB 142570 A GB142570 A GB 142570A GB 142570 A GB142570 A GB 142570A GB 1262897 A GB1262897 A GB 1262897A
Authority
GB
United Kingdom
Prior art keywords
parts
source
oven
duval
chokes
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
GB142570A
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.)
ANCIENS AUBERT Ets
Original Assignee
ANCIENS AUBERT Ets
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 ANCIENS AUBERT Ets filed Critical ANCIENS AUBERT Ets
Publication of GB1262897A publication Critical patent/GB1262897A/en
Expired 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
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32018—Glow 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

1,262,897. Glow discharge apparatus. ANCIENS ETABS AUBERT & DUVAL A. R. J. DUVAL SUCCESSEURS. 12 Jan., 1970 [15 Jan., 1969], No. 1425/70. Heading H5H. [Also in Division C7] Iron or steel parts A are nitrided by enclosing them in a chamber 1 provided with nitrogen containing gas under reduced pressure, negatively polarizing the parts to cause a cathode glow discharge, and simultaneously heating the parts A by a heat source 2 independent of the source of polarizing potential. As shown, a support 3 for parts A is electrically connected to earthed housing 1, is provided with passages for circulation of ionized gas, and is arranged inside oven 2. A vacuum pump 11 is connected to one end of housing 1 and a source of nitrogen containing gas is connected at 12 to the other end. Cooled electrodes 6, 7 mounted in insulators 4a, 5a are connected to secondary winding 18 of transformer 19 by chokes 16, 17. The secondary is earthed at its centre 20. In operation, the electrodes 6, 7 act during successive half cycles as anodes so that the arrangement is self rectifying. Chokes 16, 17 prevent arcing. Various, variable voltage A.C. supplies are disclosed. Heat source 2 may be a fuel oven, electric oven, high frequency inductor or a resistance heater.
GB142570A 1969-01-15 1970-01-12 Improvements in or relating to methods and apparatus for nitriding metal parts by ionization Expired GB1262897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6900512A FR2031614A5 (en) 1969-01-15 1969-01-15

Publications (1)

Publication Number Publication Date
GB1262897A true GB1262897A (en) 1972-02-09

Family

ID=9027822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB142570A Expired GB1262897A (en) 1969-01-15 1970-01-12 Improvements in or relating to methods and apparatus for nitriding metal parts by ionization

Country Status (4)

Country Link
CH (1) CH510131A (en)
DE (1) DE2000673B2 (en)
FR (1) FR2031614A5 (en)
GB (1) GB1262897A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2657078A1 (en) * 1975-12-29 1977-07-07 Kawasaki Heavy Ind Ltd DEVICE FOR ION NITRATION

Families Citing this family (5)

* 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
FR2332336A1 (en) * 1975-11-21 1977-06-17 Vide & Traitement Sa Furnace for ion implantation in metals - suitable for nitriding, carburizing and other treatments
JPS5350020A (en) * 1976-10-18 1978-05-08 Kawasaki Heavy Ind Ltd Ionitriding
JPS53113230A (en) * 1977-03-15 1978-10-03 Kawasaki Heavy Ind Ltd Vacuum discharge treatment apparatus
DE3026164A1 (en) * 1980-07-08 1982-01-28 Europäische Atomgemeinschaft (EURATOM), Kirchberg METHOD AND DEVICE FOR DISCHARGING CHEMICAL TREATMENT OF SENSITIVE WORKPIECES BY USE OF GLIMMENT DISCHARGE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2657078A1 (en) * 1975-12-29 1977-07-07 Kawasaki Heavy Ind Ltd DEVICE FOR ION NITRATION

Also Published As

Publication number Publication date
FR2031614A5 (en) 1970-11-20
DE2000673A1 (en) 1970-07-30
CH510131A (en) 1971-07-15
DE2000673B2 (en) 1977-08-04

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