JPS5358425A - Denitrification reating method for steel - Google Patents

Denitrification reating method for steel

Info

Publication number
JPS5358425A
JPS5358425A JP13297576A JP13297576A JPS5358425A JP S5358425 A JPS5358425 A JP S5358425A JP 13297576 A JP13297576 A JP 13297576A JP 13297576 A JP13297576 A JP 13297576A JP S5358425 A JPS5358425 A JP S5358425A
Authority
JP
Japan
Prior art keywords
denitrification
steel
reating
atmospheric gas
gas
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
JP13297576A
Other languages
Japanese (ja)
Inventor
Satoyuki Kitajima
Toru Toshimitsu
Chiune Suzuki
Tsutomu Iwamoto
Nobuo Tsuzuki
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP13297576A priority Critical patent/JPS5358425A/en
Publication of JPS5358425A publication Critical patent/JPS5358425A/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/08—Extraction of nitrogen

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To carry out denitrification annealing of steel little in a highly efficient and energy-conservative manner by passing an atmospheric gas for denitrification through the spaces among loosely coiled steel and contacting the atmospheric gas contg. a very small amt. of formed NH3 gas with nitride-forming bodies kept at a high temp.
JP13297576A 1976-11-05 1976-11-05 Denitrification reating method for steel Pending JPS5358425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13297576A JPS5358425A (en) 1976-11-05 1976-11-05 Denitrification reating method for steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13297576A JPS5358425A (en) 1976-11-05 1976-11-05 Denitrification reating method for steel

Publications (1)

Publication Number Publication Date
JPS5358425A true JPS5358425A (en) 1978-05-26

Family

ID=15093856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13297576A Pending JPS5358425A (en) 1976-11-05 1976-11-05 Denitrification reating method for steel

Country Status (1)

Country Link
JP (1) JPS5358425A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008050811A (en) * 2006-08-23 2008-03-06 Ihi Corp Movable suspended scaffolding apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008050811A (en) * 2006-08-23 2008-03-06 Ihi Corp Movable suspended scaffolding apparatus

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