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Indexed by:期刊论文

Date of Publication:2016-09-01

Journal:INTERNATIONAL JOURNAL OF MATERIALS RESEARCH

Included Journals:SCIE、EI、Scopus

Volume:107

Issue:9

Page Number:790-800

ISSN No.:1862-5282

Key Words:Continuous casting; Multi-crystalline silicon; Boundary condition; Stress; Validation

Abstract: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.