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신동엽(D. Y. Shin),신종대(J. D. Shin),유병돈(B. D. You),오상훈(S. H. Oh),이동희(D. H. Lee) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.5
The effect of optimum condition of the exothermic & insulating materials for exothermic heat value increase by using the change of the thermal properties of exothermic & insulating materials with mixing condition of raw materials. Small steel ingot advantage that NAl/NFe2O3 is increase and size is small. Large steel ingot advantage that expansion graphite and bum rice bran contain large amount.
김도준(D. J. Kim),신동엽(D. Y. Shin),변승용(S. Y. Byun),위창현(C. H. Wi),유병돈(B. D. You),오상훈(S. H. Oh) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
The change of the thermal properties of exothermic & insulating materials with mixing condition of raw materials which is the most important factor for exothermic & insulating materials was investigated by using the evaluation system of the thermal properties of exothermic & insulating materials. In this study, the effect of the thermal properties of the exothermic & insulating materials such as exothermic properties, endothermic properties, insulating properties, maximum temperature of molten metal, ignition time of exothermic & insulating materials and temperature recovery time on the mixing ratio of reductant and oxidant, types of reductant, and particle sizes of reductants was examined. It could be expected to design the mixing condition of raw materials for various exothermic & insulating materials.
자기 환원성 TiO<sub>2</sub> 단광의 반응특성에 관한 연구
백상종,신동엽,민주원,최석우,윤덕재,유병돈,Baek, S.J.,Shin, D.Y.,Min, J.W.,Choi, S.O.,Yun, D.J.,You, B.D. 한국소성가공학회 2006 소성가공 : 한국소성가공학회지 Vol.15 No.8
The reduction behavior of $TiO_{2}$ in Al and Al/CaSi containing self-reducing $TiO_{2}$ briquettes(SRTB) was investigated. The maximum yield of Ti was expected with the slag composition of 45-55%CaO in the $CaO-Al_{2}O_{3}$ system. When $CaCO_{3}$ was used as a flux, the oxidation loss of reducing agent by $CO_{2}$ should be compensated, and therefore it leads to excessive requirement of the reducing agent. By using Al and CaSi mixture as a reducing agent of $TiO_{2}$, the reaction products both oxide and metal could be liquefied, and separated effectively with each other. As a result, the yield of Ti increases remarkably. The optimum mixing ratio of CaSi to Al is 78%CaSi-22%Al.