JPS55115965A - Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas - Google Patents

Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas

Info

Publication number
JPS55115965A
JPS55115965A JP2297379A JP2297379A JPS55115965A JP S55115965 A JPS55115965 A JP S55115965A JP 2297379 A JP2297379 A JP 2297379A JP 2297379 A JP2297379 A JP 2297379A JP S55115965 A JPS55115965 A JP S55115965A
Authority
JP
Japan
Prior art keywords
mixed gas
special purpose
glow discharge
nitrogen
purpose steel
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.)
Pending
Application number
JP2297379A
Other languages
Japanese (ja)
Inventor
Takao Takase
Tokio Fujimura
Kazuo Ichii
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.)
NIPPON KAGAKU GIJUTSU KENKYUSHO KK
Original Assignee
NIPPON KAGAKU GIJUTSU KENKYUSHO KK
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 NIPPON KAGAKU GIJUTSU KENKYUSHO KK filed Critical NIPPON KAGAKU GIJUTSU KENKYUSHO KK
Priority to JP2297379A priority Critical patent/JPS55115965A/en
Publication of JPS55115965A publication Critical patent/JPS55115965A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/38—Treatment of ferrous surfaces

Landscapes

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

Abstract

PURPOSE:To form the nitride layer composed of only the diffused layer on the special purpose steel and increase its surface hardness with good performance by applying glow discharge treatment in the mixed gas flow of nitrogen and hydrogen of an extra low nitrogen ratio. CONSTITUTION:In the case of performing nitriding by causing glow discharge in the mixed gas flow of nitrogen and hydrogen with the special purpose steel as cathode, the mixing ratio of the foregoing mixed gas of nitrogen and hydrogen is defined to nitrogen:hydrgen=1:500 or less. Thereby, the hardened layer of only the diffused layer may be obtained without forming hard and brittle compound layer on the surface of the material to be treated.
JP2297379A 1979-02-27 1979-02-27 Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas Pending JPS55115965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2297379A JPS55115965A (en) 1979-02-27 1979-02-27 Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2297379A JPS55115965A (en) 1979-02-27 1979-02-27 Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas

Publications (1)

Publication Number Publication Date
JPS55115965A true JPS55115965A (en) 1980-09-06

Family

ID=12097503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2297379A Pending JPS55115965A (en) 1979-02-27 1979-02-27 Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas

Country Status (1)

Country Link
JP (1) JPS55115965A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002840A1 (en) * 2000-07-04 2002-01-10 Robert Bosch Gmbh Coil spring from an alloy steel and method for producing such coil springs
RU2625864C1 (en) * 2016-10-10 2017-07-19 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" Method of low-temperature ion nitriding steel products in magnetic field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002840A1 (en) * 2000-07-04 2002-01-10 Robert Bosch Gmbh Coil spring from an alloy steel and method for producing such coil springs
RU2625864C1 (en) * 2016-10-10 2017-07-19 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" Method of low-temperature ion nitriding steel products in magnetic field

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