Analysis of Sticking Breakout with Mechanical Model of Solidifying Shell Growth Considering a Mold Oscillation

作者：Mizoguchi Toshiaki^*; Ueshima Yoshiyuki; Ogibayashi Shigeaki; Matsumiya Toom

来源：Journal of the Iron and Steel Institute of Japan, 2015, 101(9): 479-487.

DOI：10.2355/tetsutohagane.TETSU-2015-016

• continuous casting
• breakout
• mold oscillation
• high speed casting
• mathematical model
• initial solidification

In order to prevent a sticking breakout (BO) in continuous casting of steel with high casting speed, a mechanical model of solidifying shell growth, coupled analysis of solidification, stress and strain with considering a shell healing process during negative strip period in one cycle of mold oscillation, has been developed. By employing this model, effects of carbon contents, casting velocity, mold powder viscosity and oscillation conditions on likelihood of the BO occurrence were analyzed. Calculated results obtained are in good agreement with the observations previously reported and BO detection frequency during real operation. By this model, a way of thinking and proper conditions of mold oscillation in high casting speed are elucidated for the prevention of the BO.

• 出版日期2015