• Title/Summary/Keyword: 제철기술

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Experiment on the Ancient Smelting-Smithing Technologies - A Study on the Proper Experimental Temperature - (고대 제련-단야기술 복원을 위한 실험적 연구 - 적정 조업온도 연구를 중심으로 -)

  • Lee, Eunwoo;Kwak, Byeongmoon;Kim, Eunji;Park, Jongryuk
    • Journal of Conservation Science
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    • v.34 no.6
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    • pp.581-593
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    • 2018

  • Studies on ancient iron production technologies still have challenges to overcome, although there have been many results that have enabled us to understand these old technologies. The purpose of this study is to propose a suitable temperature condition for smelting experiments. The target for reconstruction is a smelting-smithing process in the ancient Jungwon area, and the experiment was designed on the basis of published research, such as archaeological evidence. Experiment A was performed at a low temperature to produce low-carbon iron, while Experiment B was conducted at a relatively high temperature to synthesize high-carbon iron. In addition, the low-carbon iron proved to be suitable for the smithing process. Moreover, aspects such as the microstructure and chemical composition of the slag and the surface condition of the furnace wall showed that the low-temperature smelting process was closer to the ancient method. It is important to mention the premise that the reconstruction of ancient technology can be achieved when the results of an experiment replicate the conditions of a real site. The results show that direct smelting, which produces low-carbon iron bloom under a low-temperature condition, should be the subject of smelting experiments concerning the iron production technologies of the ancient Jungwon area.

  • https://doi.org/10.12654/JCS.2018.34.6.13 인용 PDF KSCI

촉매이용 나프타 분해공정 상용화에 성공

  • Park, Yong-Gi
    • The Science & Technology
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    • s.501
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    • pp.46-49
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    • 2011

  • 나프타분해기술이란 석유화학산업의 기초 원료인 경질올레핀(에틸렌, 프로필렌)을 생산하기 위한 기술로서 철강산업에서 제철산업이 하는 역할을 화학산업에서 한다고 볼 수 있다. 즉, 각종 합성수지 및 화학제품을 생산하기 위한 기초화학원료를 만드는 기술이다.

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LG화학 '2004 RC환경보고서

  • 한국환경기술인연합회
    • Environmental engineer
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    • v.21 s.220
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    • pp.100-104
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    • 2004

  • 환경재단은 최근 시민환경연구소에 의뢰해 각 기업이 발행한 환경보고서를 정밀 분석 후 평가해 우수 환경보고서 가운데 8개를 엄선했다. 환경재단이 뽑은 수상기업은 에너지부문의 SK(주)에 '2003 SHE보고서'와 화학부문의 LG화학에 '2004 RC환경보고서'를 비롯 전기부문의 LG전선 '2002 녹색경영보고서' 제지$\cdot$식약품 부문에 유한킴벌리의 '2002 환경경영보고서'가 차지했다. 자동차 제철 토목부문에는 현대자동차의 '2

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Effect of Nickel Addition in Hot Dip Galvanizing of Mini-mill Steels Containing Silicon (실리콘을 함유한 미니밀 소재의 용융아연도금성에 미치는 니켈첨가의 영향)

  • Lee, H.J.;Kim, J.S.;Chung, J.H.
    • Journal of the Korean institute of surface engineering
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    • v.32 no.2
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    • pp.157-164
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    • 1999

  • In this study the effect of nickel addition on the coating weight of mini-mill steels containing silicon has been studied. It is shown that the pure zinc accelerated growth of the alloy layers occurred by a rapid growth of the zeta phase at 0.06%Si. The addition of 0.06%Ni to a pure zinc bath was found to be very effective in reducing the coating weight and promoting preferential development of the delta phase. The coating obtained by immersion in the Zn-Ni bath shows the presence of a nickel-rich region between the zeta phase and the eta phase. It is suggested that nickel prevents the rapid growth of the zeta phase due to the formation of the Zn-Ni-Fe ternary compound, which may act as a barrier to inward diffusion of zinc or iron at the zeta-eta boundary.

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