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MELTING BEHA VIOR OF IRON CARBIDES INJECTED INTO MOLTEN STEEL

Research Project

Project/Area Number 08650869
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Metal making engineering
Research InstitutionNAGOYA INSTITUTE OF TECHNOLOGY

Principal Investigator

HAYASHI Shoji  NAGOYA INSTITUTE OF TECHNOLOGY,Faculty of Engineering, ASSOCIATE PROFESSOR, 工学部, 助教授 (40024351)

Co-Investigator(Kenkyū-buntansha) IGUCHI Yoshiaki  NAGOYA INSTITUTE OF TECHNOLOGY,Faculty of Engineering, PROFESSOR, 工学部, 教授 (00023268)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1996: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsIRON CARBIDES / IRON SCRAP / MELTING / NEW IRON SOURCE / ELECTRIC ARCFURNACE
Research Abstract

Iron carbide is expected to be utilized as a new iron source alternative to iron scrap for steelmaking, especially using an electric arc furnace. Objectives of this research are to examine a melting behavior of iron carbide injected into molten steel in order to make clear a feasibility for it to be available for steelmaking in the near future. The following results were derived in the fiscal years 1996 and 1997.
(1)High grade iron carbides (Fe_3C, 6.7mass%, diameter : 0.1-1 nun) were produced by reacting iron ores with our specified gas in a fluidized bed based on a new process concept.
(2)Their melting tests were performed by blowing the iron carbide with Ar gas to the surface of molten steel through a lance in a 50kg induction furnace. Mass and heat balances were evaluated by measuring the variation of temperature and contents of species in melt and exit gas.
(3)The carbides were proved to be dissolved into melt without any problems. Their melting heats tended to decrease with higher carbidization. Also, nitrogen removal in melt was confirmed as expected.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] Y.Iguchi etal.: "Production and Use of High Grade Iron Carbides." 1998 ISS Electric Furnace Conference Proceedings. 649-656 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Iguchi, S.Hayashi, A.Hattori, and H.Mori: "Production and Use of High Grade Iron Carbides" 1998 Process Technology Conference Proceedings. ISS,Nov 15-18. 649-656 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.Hayashi etal.: "Synthesis of Iron Carbide by Reaction of Iron Ores with H_2-CO Gas Mixtures Bearing Traces of Sulfur" ISIJ International. 37巻・1号. 16-21 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Hayashi etal.: "Iron Carbide Synthesis by Reaction of Iron Ore with H_2-CH_4 Gas Mixtures Containing Traces of Sulfur" ISIJ International. 37巻・4号. 345-349 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Hayashi etal.: "Economical Production of High Grade Iron Carbides" First Int. Cong. on Sci. and Tech. of Steelmaking. 66 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 林昭二 ら: "鉄鉱石からの炭化鉄合成(炭化鉄製造-1)" 材料とプロセス. 8. 110- (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 林昭二 ら: "流動層による鉄鉱石からの炭化鉄合成(炭化鉄製造-2)" 材料とプロセス. 8. 111- (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Hayashi etal.: "Economical Production of High Grade Iron Carbides" First Int.Cong.on Sci.and Tech.of Steelmaking. 66- (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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