JPS565917A - Fluidized bed hardening device - Google Patents

Fluidized bed hardening device

Info

Publication number
JPS565917A
JPS565917A JP8076379A JP8076379A JPS565917A JP S565917 A JPS565917 A JP S565917A JP 8076379 A JP8076379 A JP 8076379A JP 8076379 A JP8076379 A JP 8076379A JP S565917 A JPS565917 A JP S565917A
Authority
JP
Japan
Prior art keywords
fluidized bed
treated
valve
cooling
fluidized
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
JP8076379A
Other languages
Japanese (ja)
Inventor
Hisashi Hattori
Tatsu Fukuda
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP8076379A priority Critical patent/JPS565917A/en
Publication of JPS565917A publication Critical patent/JPS565917A/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
    • C21D1/62—Quenching devices

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)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

PURPOSE:To obtain high cooling effect in the initial period of cooling by supplying helium gas from one of branch pipes thereby forming a fluidized bed. CONSTITUTION:The material to be treated A which has been heated up to its hardening temperature is charged into the fluidized bed B1 in a treating furnace 2. At this time, the 1st valve 9 is opened and the 2nd valve 10 is closed to turn the fluidizing gas of the fluidized bed B1 to helium. The fluidized bed B2 of a furnace 1 is fluidized by air through the feed pipe 5 for air. Upon completion of the cooling of the initial period of the material to be treated A, the 1st valve 9 is closed and the 2nd valve 10 is opened to turn the fluidized gas of the fluidized bed B1 to air or nitrogen gas. Upon perfect cooling of the material to be treated A after this, the material to be treated A is taken out from the fluidized bed B1.
JP8076379A 1979-06-28 1979-06-28 Fluidized bed hardening device Pending JPS565917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8076379A JPS565917A (en) 1979-06-28 1979-06-28 Fluidized bed hardening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8076379A JPS565917A (en) 1979-06-28 1979-06-28 Fluidized bed hardening device

Publications (1)

Publication Number Publication Date
JPS565917A true JPS565917A (en) 1981-01-22

Family

ID=13727453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8076379A Pending JPS565917A (en) 1979-06-28 1979-06-28 Fluidized bed hardening device

Country Status (1)

Country Link
JP (1) JPS565917A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115596U (en) * 1982-01-29 1983-08-06 日立造船株式会社 shield tunneling machine
JPS59177316A (en) * 1983-03-07 1984-10-08 ロックウエル・インターナショナル・コーポレーシヨン Method of cooling heated workpiece
JPS60139410A (en) * 1983-12-27 1985-07-24 Honda Motor Co Ltd Heating method and device for resin molding molds
JPS6389615A (en) * 1986-09-30 1988-04-20 ユニオン・カ−バイド・コ−ポレ−ション Method for quenching in fluidized bed
US5064479A (en) * 1990-05-31 1991-11-12 Union Carbide Industrial Gases Technology Corporation Thermal treatment in a fluidized bed
JPH0441615A (en) * 1990-06-04 1992-02-12 Komatsu Ltd Austempering method and device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115596U (en) * 1982-01-29 1983-08-06 日立造船株式会社 shield tunneling machine
JPS59177316A (en) * 1983-03-07 1984-10-08 ロックウエル・インターナショナル・コーポレーシヨン Method of cooling heated workpiece
JPS60139410A (en) * 1983-12-27 1985-07-24 Honda Motor Co Ltd Heating method and device for resin molding molds
JPS6389615A (en) * 1986-09-30 1988-04-20 ユニオン・カ−バイド・コ−ポレ−ション Method for quenching in fluidized bed
US5064479A (en) * 1990-05-31 1991-11-12 Union Carbide Industrial Gases Technology Corporation Thermal treatment in a fluidized bed
JPH0441615A (en) * 1990-06-04 1992-02-12 Komatsu Ltd Austempering method and device

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