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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 141 - 151 (11page)
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초록· 키워드
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An inverted water-cooled multi-mold continuous casting simulator was used to investigate initial solidifica-tion of low-carbon steels and crystallization of mold flux. Embedded mold thermocouples showed charac-teristic temperature profiles dependent on parameters including casting speed, oscillation frequency, and stroke. Higher maximum temperatures for thermocouples at higher casting speeds, higher frequencies, and lowerstroke lengths were observed. The surface of the as-cast steel strips showed oscillation marks similar tothose of industrially cast slabs and higher casting speeds resulted in shallower oscillation marks. The measuredpitch agreed well with the theoretical pitch suggesting the multi-mold simulator to be a cost-effective alterna-tive to pursue fundamental studies on initial solidification in the mold. Analysis of the mold flux takenbetween the copper mold and solidified steel shell showed highly dendritic uni-directional crystallizationoccurring within the flux film suggesting that the heat transfer direction is dominantly horizontal towardsthe water-cooled copper mold. In addition, the solidified flux located at the upper to lower part of themold suggested morphological differences in the size and shape of the crystalline phases indicating thatcrystallization ratio can increase depending upon the retention in the mold and subsequently decrease radi-ative heat transfer as the flux traverses down the mold.
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