Abstract：During casting， strictly controlling the temperature in tundish is the precondition to guarantee the quality of caster production. Therefore， the technology of controlling tundish temperature is one of the research direction of steelmaking. Plasma heating is advantageous over induction heating in the aspects of less impact on tundish design and lower maintenance costs. On the other hand， plasma heating has a lower heating efficiency of 60% compared to that of induction heating 90%. The idea of utilizing electromagnetic stirring was numerically investigated in combination with plasma heating. With plasma heating alone， the flow in the upper part of heating chamber is dampened due to the buoyancy force caused by the large temperature gradient of plasma heating. With EMS， one rotational flow with the velocity of 0.2-0.4 m/s is created in the heating chamber， and the temperature in the heating chamber is homogenized. The temperature response time in the outlet is reduced and heating efficiency of plasma heating can be improved with EMS. Meanwhile， using the combination method of Plasma and EMS is able to accelerate inclusion floating result in cleaning the molten.
收稿日期: 2016-05-06
出版日期: 2017-01-16
引用本文:
钟云涛，潘汉玉，Emmnuel Aion，杨洪良. 中间包等离子加热和电磁搅拌复合技术的开发与使用[J]. 中国钢铁期刊网, 2016, 35(6): 37-41.
ZHONG Yun-tao，PAN Han-yu，Emmanuel Abiona，YANG Hong-liang . Application and development of composite technology of plasma heating and electromagnetic stirring in tundish. Chinese Journal of Iron and Steel, 2016, 35(6): 37-41.
2016, Vol. 35 
