JPS5794565A - Surface treatment of pipe - Google Patents

Surface treatment of pipe

Info

Publication number
JPS5794565A
JPS5794565A JP15358981A JP15358981A JPS5794565A JP S5794565 A JPS5794565 A JP S5794565A JP 15358981 A JP15358981 A JP 15358981A JP 15358981 A JP15358981 A JP 15358981A JP S5794565 A JPS5794565 A JP S5794565A
Authority
JP
Japan
Prior art keywords
pipe
anode
electrode
inside circumferential
cathode
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
JP15358981A
Other languages
Japanese (ja)
Inventor
Shizuka Yamaguchi
Naotatsu Asahi
Tateo Tamamura
Tsumoru Miyahara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15358981A priority Critical patent/JPS5794565A/en
Publication of JPS5794565A publication Critical patent/JPS5794565A/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
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges

Landscapes

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

Abstract

PURPOSE:To perform uniform surface treatment by using a pipe of a metallic material as cathode, disposing an electrode of anode in the inside circumferential part of the pipe, and glow discharging the inside circumferential surface of the pipe while controlling the potential distribution in the length direction of the pipe around the electrode. CONSTITUTION:A pipe 5 of a metallic material is disposed in a sealed vessel 1 by way of a holding jig 4, and with said pipe 5 as cathode, anode 6 is introduced into the pipe 5. On the other hand, the inside of the vessel 1 is evacuated with a vacuum device 2 and a treating gas 9 is introduced through a gas lead-in port 8. Here, electric current is fed to the anode 6 and the pipe 5 by an electric power source 14, and while the potential distribution in the longitudinal direction of the pipe 5 around the electrode is controlled with a control board 12, glow discharge is caused, whereby the inside circumferential surface of the pipe 5 is treated.
JP15358981A 1981-09-30 1981-09-30 Surface treatment of pipe Pending JPS5794565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15358981A JPS5794565A (en) 1981-09-30 1981-09-30 Surface treatment of pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15358981A JPS5794565A (en) 1981-09-30 1981-09-30 Surface treatment of pipe

Publications (1)

Publication Number Publication Date
JPS5794565A true JPS5794565A (en) 1982-06-12

Family

ID=15565788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15358981A Pending JPS5794565A (en) 1981-09-30 1981-09-30 Surface treatment of pipe

Country Status (1)

Country Link
JP (1) JPS5794565A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323835A (en) * 1976-08-19 1978-03-04 Kawasaki Heavy Ind Ltd Ionitriding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323835A (en) * 1976-08-19 1978-03-04 Kawasaki Heavy Ind Ltd Ionitriding

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