1997 Fiscal Year Final Research Report Summary
MELTING BEHA VIOR OF IRON CARBIDES INJECTED INTO MOLTEN STEEL
| Project/Area Number |
08650869
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making engineering
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| Research Institution | NAGOYA INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
HAYASHI Shoji NAGOYA INSTITUTE OF TECHNOLOGY,Faculty of Engineering, ASSOCIATE PROFESSOR, 工学部, 助教授 (40024351)
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| Co-Investigator(Kenkyū-buntansha) |
IGUCHI Yoshiaki NAGOYA INSTITUTE OF TECHNOLOGY,Faculty of Engineering, PROFESSOR, 工学部, 教授 (00023268)
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| Project Period (FY) |
1996 – 1997
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| Keywords | IRON CARBIDES / IRON SCRAP / MELTING / NEW IRON SOURCE / ELECTRIC ARCFURNACE |
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| 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.
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