2019 Pittsburgh AISTech

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Crystallization Behavior Evaluations of the Mold Powder by DTA (Room 407)

In the continuous casting process, it has been known that a mold powder with a high crystallization temperature is effective in preventing surface cracks on the steel strand. To improve mold powder technology, various samples were evaluated by employing differential thermal analysis (DTA). Quenched glass samples were heated until melted and then cooled. According to the DTA curves, a supercooling degree was obtained by the difference between liquidus temperature and crystallization temperature. As a result, it was recognized that the consideration of not only the crystallization temperature but also the supercooling degree can be effective in mold powder technology improvement.