|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||8th International Symposium on High Temperature Metallurgical Processing
||E-35: Characteristic of Subsurface Hooks in Slabs And Behavior of Inclusions Entrapment at High Speed Continuous Casting
||Peng Yuan, Haibo Li, Chenxi Ji, Bin Chen
|On-Site Speaker (Planned)
On the basis of using electromagnetic brake to prevent the mold powder entrapment, high speed continuous casting not only can improve the production efficiency, but also can improve the quality of slabs. Inclusions in the surface of slabs were analyzed by Aspex scanning electron microscopy, and characteristic of subsurface hooks in slabs were also investigated. Then the changing law of inclusions and hooks characters were achieved at different casting speeds. The results show that the depth and length of hooks decrease with the casting speed increasing. Inclusions larger than 200μm are entrapped by hooks, and the entrapment behavior of inclusions with the size of 50~200μm is influenced by forces acting on inclusions at the solidifying front. With the increasing of casting speed, the washing force becomes large and the entrapping force becomes small, and therefore the number of entrapped inclusions decreases.
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