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Open AccessArticle

Dynamic Bath Mixing during an Ingot Casting Process

1
School of Metallurgical Engineering, Anhui University of Technology, Ma′anshan 243032, China
2
Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Anhui University of Technology, Ma′anshan 243032, China
3
School of Metallurgy, Northeastern University, Shenyang 110819, China
4
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-Yamadaoka, Osaka 565-0871, Japan
*
Author to whom correspondence should be addressed.
Metals 2019, 9(2), 238; https://doi.org/10.3390/met9020238
Received: 30 January 2019 / Revised: 8 February 2019 / Accepted: 13 February 2019 / Published: 17 February 2019
(This article belongs to the Special Issue Advanced Simulation Technologies of Metallurgical Processing)
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Abstract

This paper presents the results of a bath stirring investigation using a physical model for an uphill ingot casting process. A new method of mixing time measurement that overcomes the drawback of the conventional measurement method was developed. The method was used to investigate bath stirring for a dynamic-volume bulk bath in which the liquid volume increases over time during the teeming process. The results show that the new method can be successfully applied to reveal the relationship between gas blowing schemes, gas blowing flowrates, and bath depths. It is demonstrated that blowing bubbles causes the flow of the bath to increase when the bath depth is increased. By applying the new data analysis method, three different bottom blowing schemes were explored to study the mixing behaviors under different operating conditions. The results suggest that the concentric circular annulus is more favorable than both the eccentric blowing scheme and symmetrical scheme to achieve efficient mixing. View Full-Text
Keywords: steel ingot casting; physical model; gas blowing mixing; dynamic process steel ingot casting; physical model; gas blowing mixing; dynamic process
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Zhou, X.; Zhong, L.; Ni, P.; Deng, N. Dynamic Bath Mixing during an Ingot Casting Process. Metals 2019, 9, 238.

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