JPS565919A - Operating method for vacuum annealing furnace - Google Patents
Operating method for vacuum annealing furnaceInfo
- 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
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.
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)
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 |
-
1979
- 1979-06-27 JP JP8109979A patent/JPS565919A/en active Pending
Cited By (4)
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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