中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 11 No. 5 October 2001 |
zone of continuous casting billets
（1. Department of Materials and Chemical Engineering,
Liaoning Institute of Technology, Jinzhou 121001, P.R.China;
2. Metallurgy School, University of Science and
Technology Beijing, Beijing 100083, P.R.China;
3. Department of Metallurgy, Baotou University of Steel
and Iron Technology,Baotou 014010, P.R.China）
Abstract: The periodic bending deformation in the direction of casting occurs at the liquid/solid interface of billet due to the roller supporting force and the pressure of molten metal in the process of continuous casting. Based on this fact, a qualitative expression of solute concentration in columnar crystal zone for continuous casting billet is established, which agrees with the experimental results basically. Therefore, it is favorable to gain a columnar structure with less segregation by adopting a caster with compactly distributed small rollers and enhancing the cooling intensity in secondary-cooling zone.
Key words: solidification; segregation; continuous casting
