JPS565919A - Operating method for vacuum annealing furnace - Google Patents

Operating method for vacuum annealing furnace

Info

Publication number
JPS565919A
JPS565919A JP8109979A JP8109979A JPS565919A JP S565919 A JPS565919 A JP S565919A JP 8109979 A JP8109979 A JP 8109979A JP 8109979 A JP8109979 A JP 8109979A JP S565919 A JPS565919 A JP S565919A
Authority
JP
Japan
Prior art keywords
gas
furnace
annealed
annealing furnace
vacuum
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
JP8109979A
Other languages
Japanese (ja)
Inventor
Buichi Sekiya
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP8109979A priority Critical patent/JPS565919A/en
Publication of JPS565919A publication Critical patent/JPS565919A/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
    • 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:To simplify the mechanism of an annealing furnace and to prevent oxidation of a material to be annealed, by specifying the evacuated pressure of the furnace while supplying inert gas or reducing gas into the furnace. CONSTITUTION:The material 7 to be annealed is placed in a heating chamber 2 arranged at outside of an annealing furnace, then it is slidingly charged into the furnace body by means of rolls 8. When the furnace is evacuated by the operation of a vacuum pump 3 to 10<-3> Torr, which is indicated with a vacuum meter 10, a valve 11 attached to a pipe line 12 is opened in order to feed any one of inert gas such as Ar, He, N2, or any one of reducing gas such as DX gas, NAX gas, AX gas contained in a gas holder 13 while the vacuum pump 3 being operated. Hereby, the furnace is filled with inert or reducing atmospheric gas, and the material to be annealed is prevented from being oxidized even at 10<-3> Torr vacuum.
JP8109979A 1979-06-27 1979-06-27 Operating method for vacuum annealing furnace Pending JPS565919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8109979A JPS565919A (en) 1979-06-27 1979-06-27 Operating method for vacuum annealing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8109979A JPS565919A (en) 1979-06-27 1979-06-27 Operating method for vacuum annealing furnace

Publications (1)

Publication Number Publication Date
JPS565919A true JPS565919A (en) 1981-01-22

Family

ID=13736929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8109979A Pending JPS565919A (en) 1979-06-27 1979-06-27 Operating method for vacuum annealing furnace

Country Status (1)

Country Link
JP (1) JPS565919A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185647U (en) * 1984-05-21 1985-12-09 中外炉工業株式会社 Vacuum heat treatment furnace
JP2006524293A (en) * 2003-04-23 2006-10-26 ボルボ エアロ コーポレイション Method and apparatus for reducing contamination of workpieces
CN104087724A (en) * 2014-07-29 2014-10-08 太仓市顺昌锻造有限公司 Novel annealing furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185647U (en) * 1984-05-21 1985-12-09 中外炉工業株式会社 Vacuum heat treatment furnace
JP2006524293A (en) * 2003-04-23 2006-10-26 ボルボ エアロ コーポレイション Method and apparatus for reducing contamination of workpieces
JP4864696B2 (en) * 2003-04-23 2012-02-01 ボルボ エアロ コーポレイション Method and apparatus for reducing contamination of workpieces
CN104087724A (en) * 2014-07-29 2014-10-08 太仓市顺昌锻造有限公司 Novel annealing furnace

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