JPS6447843A - Fluidized bed heat treating method and apparatus thereof - Google Patents

Fluidized bed heat treating method and apparatus thereof

Info

Publication number
JPS6447843A
JPS6447843A JP20393887A JP20393887A JPS6447843A JP S6447843 A JPS6447843 A JP S6447843A JP 20393887 A JP20393887 A JP 20393887A JP 20393887 A JP20393887 A JP 20393887A JP S6447843 A JPS6447843 A JP S6447843A
Authority
JP
Japan
Prior art keywords
treated
oxygen detector
oxygen
fluid zone
charged
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
JP20393887A
Other languages
Japanese (ja)
Inventor
Kenji Kawate
Takeshi Shimada
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
Tokyo Electric Power Co Holdings Inc
Original Assignee
Daido Steel Co Ltd
Tokyo Electric Power Co Inc
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, Tokyo Electric Power Co Inc filed Critical Daido Steel Co Ltd
Priority to JP20393887A priority Critical patent/JPS6447843A/en
Publication of JPS6447843A publication Critical patent/JPS6447843A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

PURPOSE:To efficiently execute heat treatment to a material to be treated in a desired way by controlling carbon potential in atmosphere after executing regeneration of an oxygen detector at the time of raising temp. of the material to be treated. CONSTITUTION:The oxygen detector 41 is charged in a fluid zone of fluid grain 31 in a heating chamber 13 as penetrating a distributing plate 21 from lower part thereof. The material to be treated is charged in the fluid zone to execute heat treatment. At the time of raising the temp. of this material to be treated, by sending air into the oxygen detector 41 through a valve 42, stuck soot is burnt and removed, to regenerate the oxygen detector 41 itself. After that, by functioning the oxygen detector 41, oxygen analyzer 43 and an arithmetic unit 71, opening of a valve 72 is adjusted. By this method, composition of the fluidizing gas is adjusted and the carbon potential in the atmosphere in the fluid zone is accurately controlled.
JP20393887A 1987-08-17 1987-08-17 Fluidized bed heat treating method and apparatus thereof Pending JPS6447843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20393887A JPS6447843A (en) 1987-08-17 1987-08-17 Fluidized bed heat treating method and apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20393887A JPS6447843A (en) 1987-08-17 1987-08-17 Fluidized bed heat treating method and apparatus thereof

Publications (1)

Publication Number Publication Date
JPS6447843A true JPS6447843A (en) 1989-02-22

Family

ID=16482168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20393887A Pending JPS6447843A (en) 1987-08-17 1987-08-17 Fluidized bed heat treating method and apparatus thereof

Country Status (1)

Country Link
JP (1) JPS6447843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000328224A (en) * 1999-05-24 2000-11-28 Toho Gas Co Ltd Gas carburizing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000328224A (en) * 1999-05-24 2000-11-28 Toho Gas Co Ltd Gas carburizing method

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