JPS5220913A - Vacuum heat treatment apparatus - Google Patents

Vacuum heat treatment apparatus

Info

Publication number
JPS5220913A
JPS5220913A JP9290875A JP9290875A JPS5220913A JP S5220913 A JPS5220913 A JP S5220913A JP 9290875 A JP9290875 A JP 9290875A JP 9290875 A JP9290875 A JP 9290875A JP S5220913 A JPS5220913 A JP S5220913A
Authority
JP
Japan
Prior art keywords
heat treatment
treatment apparatus
vacuum heat
cooling gas
cooling
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
JP9290875A
Other languages
Japanese (ja)
Other versions
JPS5839888B2 (en
Inventor
Yoshifumi Yamashita
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP9290875A priority Critical patent/JPS5839888B2/en
Publication of JPS5220913A publication Critical patent/JPS5220913A/en
Publication of JPS5839888B2 publication Critical patent/JPS5839888B2/en
Expired 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
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)

Abstract

PURPOSE:In cooling by circulating cooling gas in a vlcuum heat treatment apparatus, the passage for the cooling gas is let to be automatically formed without adding any operation from the outside, whereby attachments for the vacuum heat treatment apparatus such as seals, drive, etc. are reduced.
JP9290875A 1975-07-29 1975-07-29 Synchronization Expired JPS5839888B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9290875A JPS5839888B2 (en) 1975-07-29 1975-07-29 Synchronization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9290875A JPS5839888B2 (en) 1975-07-29 1975-07-29 Synchronization

Publications (2)

Publication Number Publication Date
JPS5220913A true JPS5220913A (en) 1977-02-17
JPS5839888B2 JPS5839888B2 (en) 1983-09-02

Family

ID=14067572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9290875A Expired JPS5839888B2 (en) 1975-07-29 1975-07-29 Synchronization

Country Status (1)

Country Link
JP (1) JPS5839888B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610007A1 (en) * 1987-01-22 1988-07-29 Bmi Fours Ind Vertical industrial oven with peripheral ventilation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610007A1 (en) * 1987-01-22 1988-07-29 Bmi Fours Ind Vertical industrial oven with peripheral ventilation

Also Published As

Publication number Publication date
JPS5839888B2 (en) 1983-09-02

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