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Measurement of Surface Velocity in a 150 mm × 1270 mm Slab Continuous-Casting Mold
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Author to whom correspondence should be addressed.
Metals 2020, 10(4), 428; https://doi.org/10.3390/met10040428 (registering DOI)
Received: 8 March 2020 / Revised: 20 March 2020 / Accepted: 22 March 2020 / Published: 25 March 2020
Surface velocity in the continuous-casting mold needs to be studied to better control the quality of steel products. In this paper, the measurement of surface velocity in a 150 mm × 1270 mm slab continuous-casting mold was investigated. Taking the slag layer into consideration, a numerical simulation was performed which was validated by a particle image velocimetry test. A nail-board experiment was also conducted to measure surface velocity in the continuous-casting mold. The effect of nail diameter used in nail-board experiment on the measurement of the surface velocity was also discussed to improve the precision of nail-board experiment result. The results showed that the maximum surface velocity was 0.739 m/s around the mid-section of the free surface, and the results of nail-board experiments were more accurate when the steel nail diameter was 10 mm.
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