电磁出钢系统中感应加热电源设计及其对系统可靠性的-中南大学学报.PDF

46 9 ( ) Vol.46 No.9 2015 9 Journal of Central South University (Science and Technology) Sep. 2015 DOI: 10.11817/j.issn.1672-7207.2015.09.004 ( 110819) 1.5 t (I f )300 t 300 t I=500 Af =16 kHz TF314.6 A 1672−7207(2015)09−3188−07 Power supply design in electromagnetic induction controlled automated steel-teeming system and its effects on system reliability LIU Xingan, WANG Qiang, SHI Chunyang, LI Hongxia, LIU Tie, HE Jicheng (Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China) Abstract: In order to use the electromagnetic steel technology in industrial production, the induction heating power supply used in the system and the system reliability need to be investigated when the power supply is in operation. The industrial experiments and numerical simulation were employed to investigate the teeming time of a self-designed ladle (with the mass of molten steel of 1.5 t in steel ladle) with an electromagnetic induction controlled automatic steel-teeming system. The calculated results were consistent with the experimental ones. The effect of the power parameters (current I , power frequency f ) on the teeming efficiency of the industrial ladle (300 t) with the system was investigated. And the influences of the operating power supply on the temperature distribution and equivalent stress of the coil and lad