Analysis of Power Supply Heating Effect during High Temperature Experiments Based on the Electromagnetic Steel Teeming Technology

作者：He, Ming; Wang, Qiang^*; Liu, Xin'an; Shi, Chunyang; Liu, Tie; He, Jicheng

来源：High Temperature Materials and Processes, 2017, 36(4): 441-445.

DOI：10.1515/htmp-2016-0163

• clean steel
• electromagnetic induction
• industrial application
• heating effect
• power loss

For further lowering inclusions and improving the quality of steel, a new electromagnetic steel-teeming technology based on electromagnetic induction heating was proposed. To assess the proposed technology, an experimental platform that imitates the actual production condition of steelmakers was established. High temperature experiments were performed to investigate the melting length of Fe-C alloy under different power and frequency conditions. The heating effect was analyzed, and the method of magnetic shielding to reduce the power loss of power supply was put forward. The results show that when the power is 40kW and frequency is 25 kHz, the melting length of the Fe-C alloy is 89.2mm in 120 s, which meets the requirements of steel teeming. In addition, when magnetic shielding material is installed under the induction coil, the power loss is reduced by about 64 %, effectively improving the heating effect of power supply.

• 出版日期2017-4
• 单位东北大学