JPS5562159A - Vacuum carburizing method - Google Patents

Vacuum carburizing method

Info

Publication number
JPS5562159A
JPS5562159A JP13496278A JP13496278A JPS5562159A JP S5562159 A JPS5562159 A JP S5562159A JP 13496278 A JP13496278 A JP 13496278A JP 13496278 A JP13496278 A JP 13496278A JP S5562159 A JPS5562159 A JP S5562159A
Authority
JP
Japan
Prior art keywords
furnace
gas
potential
vacuum
carburizing
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
JP13496278A
Other languages
Japanese (ja)
Other versions
JPS5952705B2 (en
Inventor
Mikio Yonetani
Tomoyasu Kawasaki
Masanori Oota
Masao Takeda
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.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP13496278A priority Critical patent/JPS5952705B2/en
Publication of JPS5562159A publication Critical patent/JPS5562159A/en
Publication of JPS5952705B2 publication Critical patent/JPS5952705B2/en
Expired 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
    • 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
    • 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
    • C23C8/80—After-treatment

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 carburize in a vacuum furnace the surface of a metal material uniformly to a target value, by analyzing hydrogen gas formed through the decomposition of carburizing gas so as to keep the carbon potential of the furnace atmosphere at a prescribed value. CONSTITUTION:A heating furnace 2 contg. a material 3 to be treated is placed in a vacuum furnace 1. The vacuum furnace 1 and the heating furnace 2 is evacuated to a vacuum by the operation of an evacuation system 7 with an on-off valve 10 opened. Then the material 3 to be treated is heated by means of a heater 14, and a carburizing gas such as methane etc. is charged to the heating furnace 2 from a carburizing gas reservoir 6 with an on-off valve 9 opened. The carburizing gas is decomposed to C and H2, the C carburizing the metal material. The gas in the heating furnace 2 is analyzed to measure the C potential. When the C potential is decreased to a prescribed value or under, the gas in the furnace is discharged once, and methane gas is charged once again to increase the C potential. These operations are repeated to carburize the material to a target value and to diffuse by heating, then the material is cooled, then heated once again and put into an oil reserving section 12 of the vacuum furnace 1 in order to be hardened.
JP13496278A 1978-10-31 1978-10-31 Vacuum carburizing method Expired JPS5952705B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13496278A JPS5952705B2 (en) 1978-10-31 1978-10-31 Vacuum carburizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13496278A JPS5952705B2 (en) 1978-10-31 1978-10-31 Vacuum carburizing method

Publications (2)

Publication Number Publication Date
JPS5562159A true JPS5562159A (en) 1980-05-10
JPS5952705B2 JPS5952705B2 (en) 1984-12-21

Family

ID=15140644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13496278A Expired JPS5952705B2 (en) 1978-10-31 1978-10-31 Vacuum carburizing method

Country Status (1)

Country Link
JP (1) JPS5952705B2 (en)

Cited By (2)

* 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
EP1306462A2 (en) * 2001-10-23 2003-05-02 Schwäbische Härtetechnik Ulm GmbH Process and apparatus for measuring and controlling the carburising atmosphere in a vacuum carburising installation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5429500B2 (en) * 2011-07-19 2014-02-26 株式会社Ｉｈｉ Quality control method and apparatus for vacuum carburizing, and vacuum carburizing furnace

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
JPH032944B2 (en) * 1982-01-22 1991-01-17 Komatsu Mfg Co Ltd
EP1306462A2 (en) * 2001-10-23 2003-05-02 Schwäbische Härtetechnik Ulm GmbH Process and apparatus for measuring and controlling the carburising atmosphere in a vacuum carburising installation
EP1306462A3 (en) * 2001-10-23 2003-10-29 Schwäbische Härtetechnik Ulm GmbH Process and apparatus for measuring and controlling the carburising atmosphere in a vacuum carburising installation

Also Published As

Publication number Publication date
JPS5952705B2 (en) 1984-12-21

Similar Documents

Publication Publication Date Title
EP0156378A3 (en) Method and apparatus for carburizing steel with a gas
ES8206664A1 (en) Decoating of aluminum scrap
JPS5562159A (en) Vacuum carburizing method
JPS55125267A (en) Surface treating method of improving abrasion resistance and corrosion resistance of iron and steel
AU2002245282B2 (en) Metallic diffusion process and improved article produced thereby
ES8106762A1 (en) Process for treating metals using recycled gases
ZA865391B (en) Process for a rapid and homogeneous carburization of a charge in a furnace
JPS5792127A (en) Continuous bright heat treatment of metal in furnace containing gaseous atmosphere
JPS5464033A (en) Drip type carburization furnace
Bell et al. A laboratory investigation of plasma carburizing in hydrogen-methane mixtures
JPS5562162A (en) Vacuum carburizing method
JPS5773120A (en) Heat treatment of metal
St Pierre Vacuum carburizing
DE59604119D1 (en) Process for nitriding and / or nitrocarburizing metallic workpieces
JPS57118635A (en) Manufacture of semiconductor device
Moszczynski Effect of Properties of Carburizing Atmospheres on Practical Results of Gas Carburizing
Trzcialkowski Influence of the Decreased Pressure of the Atmosphere, Produced From Methane, on Steel Carburizing
Weber Vacuum Carburizing and Carbonitriding of Powder Metallurgy Ferrous Alloys
GB2015580A (en) Recarburising ferrous materials
Has et al. Structure of the Sulfonitriding Layers on Stainless and Heat Resistant Steels
JPS5726159A (en) Ion surface treatment
JPS5493700A (en) Titanium nitriding method
JPS5780485A (en) Controlling method in treatment for melting industrial waste or the like
Buslovich et al. Behaviour Pattern of the Interaction of the Gas Atmosphere with the Metal Surface During Casehardening
JPS55130321A (en) Manufacture of drawn steel material