JPS5773120A - Heat treatment of metal - Google Patents

Heat treatment of metal

Info

Publication number
JPS5773120A
JPS5773120A JP14870880A JP14870880A JPS5773120A JP S5773120 A JPS5773120 A JP S5773120A JP 14870880 A JP14870880 A JP 14870880A JP 14870880 A JP14870880 A JP 14870880A JP S5773120 A JPS5773120 A JP S5773120A
Authority
JP
Japan
Prior art keywords
heat treatment
gas
supplied
products
chamber
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
JP14870880A
Other languages
Japanese (ja)
Inventor
Katsuro Nakamura
Toshio Tsunoda
Haruo Kokubu
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP14870880A priority Critical patent/JPS5773120A/en
Publication of JPS5773120A publication Critical patent/JPS5773120A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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

Landscapes

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

Abstract

PURPOSE:To simplify composite heat treatment and save gas and electricity by evacuating the atmosphere gas used in the previous process to a vacuum then supplying the gas for the next process thereby performing heat treatment. CONSTITUTION:Treating products 11 are transferred into a pretreatment chamber 5, and are heated under vacuum to evaporate the stains of the products 11 and remove them. Next, upon completion of the evacuation, gaseous N2 is supplied into the chamber 5, and an intermediate door 7 is opened, through which the products 11 are transferred into a heating chamber 2 and are heated uniformly up to prescribed temp. Thence, in the case of subjecting the same to, for example, carburizing heat treatment, a carburizer of a hydrocarbon type is supplied. In the case of subjecting the same to nitriding heat treatment in succession to this, the gas for carburizing is evacuated and gaseous N2 is supplied, whereby composite heat treatment is carried out.
JP14870880A 1980-10-23 1980-10-23 Heat treatment of metal Pending JPS5773120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14870880A JPS5773120A (en) 1980-10-23 1980-10-23 Heat treatment of metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14870880A JPS5773120A (en) 1980-10-23 1980-10-23 Heat treatment of metal

Publications (1)

Publication Number Publication Date
JPS5773120A true JPS5773120A (en) 1982-05-07

Family

ID=15458816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14870880A Pending JPS5773120A (en) 1980-10-23 1980-10-23 Heat treatment of metal

Country Status (1)

Country Link
JP (1) JPS5773120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017226860A (en) * 2016-06-20 2017-12-28 トヨタ自動車株式会社 Surface treatment method and surface treatment apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017226860A (en) * 2016-06-20 2017-12-28 トヨタ自動車株式会社 Surface treatment method and surface treatment apparatus

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