JPS5760018A - Heat treatment installation for metal - Google Patents

Heat treatment installation for metal

Info

Publication number
JPS5760018A
JPS5760018A JP13614780A JP13614780A JPS5760018A JP S5760018 A JPS5760018 A JP S5760018A JP 13614780 A JP13614780 A JP 13614780A JP 13614780 A JP13614780 A JP 13614780A JP S5760018 A JPS5760018 A JP S5760018A
Authority
JP
Japan
Prior art keywords
objects
chamber
heat
gaseous nitrogen
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.)
Granted
Application number
JP13614780A
Other languages
Japanese (ja)
Other versions
JPS6033188B2 (en
Inventor
Katsuro Nakamura
Toshio Tsunoda
Haruo Kokubu
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP55136147A priority Critical patent/JPS6033188B2/en
Publication of JPS5760018A publication Critical patent/JPS5760018A/en
Publication of JPS6033188B2 publication Critical patent/JPS6033188B2/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

Abstract

PURPOSE:To improve washing effect, make heat treatment uniform and improve the quality of treating objects by connecting a vacuum evacuating device, an inert gas supplying device and a heat treating agent supplying device to a heat chamber and performing washing and heat treatment in the heating chamber successively. CONSTITUTION:Gaseous nitrogen is supplied from a gaseous nitrogen vessel 18 into a heating chamber 2, and is kept under high pressure. Treating objects 14 are transferred from an insertion table 15 into the chamber 2. The inside of the chamber 2 is evacuated to the highest possible vacuum with a vacuum pump 23, and the objects 14 are washed under heating with heaters 1. Thence, gaseous nitrogen is supplied into the chamber 2 and is kept under high pressure. The temp. is raised up to prescribed temps. by the heaters 1 to heat the objects 14. If necessary, a carburizer, a nitriding agent or gaseous oxygen is suitably supplied from a heat treating agent supplying device 21, whereby the objects are heat-treated. Next, the objects 14 are conveyed to a post-treatment cooling chamber 6 and immediately its inside is evacuated to a vacuum and is substituted with gaseous nitrogen, whereby the objects are cooled. The objects are subjected to oil hardening in a hardening oil vessel 5 according to need.
JP55136147A 1980-09-30 1980-09-30 Metal heat treatment equipment Expired JPS6033188B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55136147A JPS6033188B2 (en) 1980-09-30 1980-09-30 Metal heat treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136147A JPS6033188B2 (en) 1980-09-30 1980-09-30 Metal heat treatment equipment

Publications (2)

Publication Number Publication Date
JPS5760018A true JPS5760018A (en) 1982-04-10
JPS6033188B2 JPS6033188B2 (en) 1985-08-01

Family

ID=15168401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136147A Expired JPS6033188B2 (en) 1980-09-30 1980-09-30 Metal heat treatment equipment

Country Status (1)

Country Link
JP (1) JPS6033188B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137417A (en) * 1981-02-17 1982-08-25 Michio Sugiyama Semicontinuous vacuum heat treatment furnace and operating method
JPS59113119A (en) * 1982-12-16 1984-06-29 シ−・アイ・ヘイズ・インコ−ポレイテツド Method and device for gas cooling workpiece in continuous heat treatment vacuum furnace and under high pressure
JPS6194550U (en) * 1984-11-26 1986-06-18
JPS62270718A (en) * 1986-05-16 1987-11-25 Daido Steel Co Ltd Heat treatment of steel products
KR100657560B1 (en) 2005-09-09 2006-12-14 한국생산기술연구원 Method for heating treatment blade by controlling surfaces pressure of oil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431976A (en) * 1977-08-13 1979-03-09 Norichika Tanaka Multiistage vertical incinerator
JPS54118358A (en) * 1978-03-07 1979-09-13 Toyo Radiator Kk Production of aluminum heat exchanger
JPS54148112A (en) * 1978-05-15 1979-11-20 Nakagawa Kk Bright annealing process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431976A (en) * 1977-08-13 1979-03-09 Norichika Tanaka Multiistage vertical incinerator
JPS54118358A (en) * 1978-03-07 1979-09-13 Toyo Radiator Kk Production of aluminum heat exchanger
JPS54148112A (en) * 1978-05-15 1979-11-20 Nakagawa Kk Bright annealing process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137417A (en) * 1981-02-17 1982-08-25 Michio Sugiyama Semicontinuous vacuum heat treatment furnace and operating method
JPH0141684B2 (en) * 1981-02-17 1989-09-07 Michio Sugyama
JPS59113119A (en) * 1982-12-16 1984-06-29 シ−・アイ・ヘイズ・インコ−ポレイテツド Method and device for gas cooling workpiece in continuous heat treatment vacuum furnace and under high pressure
JPH0128810B2 (en) * 1982-12-16 1989-06-06 Shii Ai Heizu Inc
JPS6194550U (en) * 1984-11-26 1986-06-18
JPS62270718A (en) * 1986-05-16 1987-11-25 Daido Steel Co Ltd Heat treatment of steel products
KR100657560B1 (en) 2005-09-09 2006-12-14 한국생산기술연구원 Method for heating treatment blade by controlling surfaces pressure of oil

Also Published As

Publication number Publication date
JPS6033188B2 (en) 1985-08-01

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