JPS5625964A - Melt nitriding method for aluminum or aluminum alloy - Google Patents

Melt nitriding method for aluminum or aluminum alloy

Info

Publication number
JPS5625964A
JPS5625964A JP10026379A JP10026379A JPS5625964A JP S5625964 A JPS5625964 A JP S5625964A JP 10026379 A JP10026379 A JP 10026379A JP 10026379 A JP10026379 A JP 10026379A JP S5625964 A JPS5625964 A JP S5625964A
Authority
JP
Japan
Prior art keywords
aluminum
melting
alloy
melt
arc
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
JP10026379A
Other languages
Japanese (ja)
Other versions
JPS5751467B2 (en
Inventor
Yoshiaki Ibaraki
Kazuyoshi Hatano
Toshihiro Yamada
Susumu Hioki
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 JP10026379A priority Critical patent/JPS5625964A/en
Publication of JPS5625964A publication Critical patent/JPS5625964A/en
Publication of JPS5751467B2 publication Critical patent/JPS5751467B2/ja
Granted 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
    • 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
    • C23C8/08—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 only one element being applied
    • C23C8/24—Nitriding

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)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE:To give aluminum or its alloy excellent wear resistance, by melting the aluminum or its alloy with arc heat in an atmosphere composed of inert gas and nitrogen gas, then by repeating the melting under different arcing conditions after slow cooling. CONSTITUTION:Aluminum or its alloy is heated and melted with arc heat in an atmosphere composed of nitrogen gas and inert gas such as argon, helium. After slow cooling, 1-5 runs of melting are repeated under different arcing conditions with arc current 25-85% the arc current at melt nitriding. Time of heating and melting is about 30-90sec. For example, inert gas is blown into a torch 2 through a gas pipe 4, then arc 6 is generated between a tungsten electrode 3 and material 1 to be treated to form a molten pool 7. To perform linear melt nitriding of the material 1 to be treated, one place of the material 1 is melted for about 30sec only in early stage, then the material 1 is conveyed at about 5mm./sec speed, while other conditions being changed.
JP10026379A 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy Granted JPS5625964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10026379A JPS5625964A (en) 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10026379A JPS5625964A (en) 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy

Publications (2)

Publication Number Publication Date
JPS5625964A true JPS5625964A (en) 1981-03-12
JPS5751467B2 JPS5751467B2 (en) 1982-11-02

Family

ID=14269309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10026379A Granted JPS5625964A (en) 1979-08-08 1979-08-08 Melt nitriding method for aluminum or aluminum alloy

Country Status (1)

Country Link
JP (1) JPS5625964A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233312A (en) * 1985-04-09 1986-10-17 Nippon Kogaku Kk <Nikon> Pattern position measuring instrument
US5386294A (en) * 1990-07-05 1995-01-31 Nikon Corporation Pattern position measuring apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233312A (en) * 1985-04-09 1986-10-17 Nippon Kogaku Kk <Nikon> Pattern position measuring instrument
US5386294A (en) * 1990-07-05 1995-01-31 Nikon Corporation Pattern position measuring apparatus

Also Published As

Publication number Publication date
JPS5751467B2 (en) 1982-11-02

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