JPS5562162A - Vacuum carburizing method - Google Patents

Vacuum carburizing method

Info

Publication number
JPS5562162A
JPS5562162A JP13541878A JP13541878A JPS5562162A JP S5562162 A JPS5562162 A JP S5562162A JP 13541878 A JP13541878 A JP 13541878A JP 13541878 A JP13541878 A JP 13541878A JP S5562162 A JPS5562162 A JP S5562162A
Authority
JP
Japan
Prior art keywords
steel material
carburized
crystal grains
steel
carbon
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
JP13541878A
Other languages
Japanese (ja)
Inventor
Hiyoue Ono
Shozo Matsuda
Kiyoshi Kita
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.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries 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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP13541878A priority Critical patent/JPS5562162A/en
Publication of JPS5562162A publication Critical patent/JPS5562162A/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
    • C23C8/08—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
    • C23C8/20—Carburising
    • C23C8/22—Carburising 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 a uniform carburized layer of fine crystal grains on the surface of a steel material, by repeating surface cleaning, carburizing, diffusion of carbon, cooling by inert gas of the material to be treated. CONSTITUTION:A steel material to be carburized is put into a vacuum furnace and the surface thereof is cleaned by heating. The surface of the steel is carburized by introducing a carburizing gas into the furnace. Then the steel material is subjected to diffusion treatment in order to diffuse the carbon, which has been adsorbed on the surface and made into solid solution, into the inside of the material. Thereafter, the steel material is quenched by the introduction of an inert gas such as nitrogen. These operations are repeated two or more times so that the crystal grains are prevented from becoming coarse, and a carburized layer of fine crystal grains and of uniform thickness is formed.
JP13541878A 1978-11-01 1978-11-01 Vacuum carburizing method Pending JPS5562162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13541878A JPS5562162A (en) 1978-11-01 1978-11-01 Vacuum carburizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13541878A JPS5562162A (en) 1978-11-01 1978-11-01 Vacuum carburizing method

Publications (1)

Publication Number Publication Date
JPS5562162A true JPS5562162A (en) 1980-05-10

Family

ID=15151262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13541878A Pending JPS5562162A (en) 1978-11-01 1978-11-01 Vacuum carburizing method

Country Status (1)

Country Link
JP (1) JPS5562162A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126975A (en) * 1982-01-22 1983-07-28 Komatsu Ltd Carburizing method by vacuum carburizing furnace
JPS62205228A (en) * 1986-03-03 1987-09-09 Nissan Motor Co Ltd Working and quenching method for steel
EP1146136A1 (en) * 1999-09-07 2001-10-17 Citizen Watch Co. Ltd. Ornament and method for preparation thereof
WO2008013765A1 (en) * 2006-07-24 2008-01-31 Swagelok Company Metal article with high interstitial content

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126975A (en) * 1982-01-22 1983-07-28 Komatsu Ltd Carburizing method by vacuum carburizing furnace
JPH032944B2 (en) * 1982-01-22 1991-01-17 Komatsu Mfg Co Ltd
JPS62205228A (en) * 1986-03-03 1987-09-09 Nissan Motor Co Ltd Working and quenching method for steel
EP1146136A1 (en) * 1999-09-07 2001-10-17 Citizen Watch Co. Ltd. Ornament and method for preparation thereof
EP1146136A4 (en) * 1999-09-07 2006-09-06 Citizen Watch Co Ltd Ornament and method for preparation thereof
WO2008013765A1 (en) * 2006-07-24 2008-01-31 Swagelok Company Metal article with high interstitial content

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