点击次数：

论文类型：期刊论文

发表时间：2016-09-01

发表刊物：INTERNATIONAL JOURNAL OF MATERIALS RESEARCH

收录刊物：SCIE、EI、Scopus

卷号：107

期号：9

页面范围：790-800

ISSN号：1862-5282

关键字：Continuous casting; Multi-crystalline silicon; Boundary condition; Stress; Validation

摘要：A mathematical model of the continuous casting process for multi-crystalline silicon billet has been developed to predict the stress evolution in the billet using the commercial finite element package, ProCAST. The calculated temperature was validated by the measured data, and the good agreement shows the reliability of the present model. The effects of casting parameters on the stress of a billet were investigated and the simulation results were validated by the analytical calculation data. The results indicated that the stress slightly decreased with the increasing of the pouring temperature. With increasing the cooling intensity in the secondary cooling zone and decreasing the casting speed, the billet stress increased. In the present work, it was found that at a pouring temperature of 1 560 degrees C, with air cooling in the secondary cooling zone and a casting speed of 1 mm s(-1), a billet with low stress could be continuously cast.