【摘 要】
：
In the process of continuous casting, the M-EMS (mold-electromagnetic stirring) is effectively to solve defects and ensure the high quality of casting blanks.The metallurgical effects of M-EMS is asso
【机 构】
：
XINGTAI IRON & STEEL CORP., LTD
【出 处】
：
1st International Conference on Computational Design and Sim
论文部分内容阅读
In the process of continuous casting, the M-EMS (mold-electromagnetic stirring) is effectively to solve defects and ensure the high quality of casting blanks.The metallurgical effects of M-EMS is associated with the installation position of agitator, which is general installed in 150mm from meniscus, central area of mold, and the joint between lower part of mold and foot-roller.By the method of numerical simulation, this paper takes GCrl5 steel as an example, to analyze how the M-EMS in different position affects liquid steel agitation and metallurgical effect.Finally, we get the following results: When the agitator installed in the central area of mold, casting temperature in slab center cooled to the liquidus temperature needs 1.1mins;Considering the characteristics of secondary cooling zone ,when the agitator installed across the foot roller section, casting temperature in slab center cooled to the liquidus temperature needs 2.13mins;And, casting temperature (1485 ℃)in slab center cooled to the liquidus temperature (1455℃) needs 14mins without agitator.Under the condition of stated current, magnetic induction intensity and the size of the electromagnetic force first increases then decreases with the increase of frequency.Under the same frequency and current, the magnetic induction intensity in mold is bigger when agitator installed on the foot roller area than installed in the center area of mold, and at the same time, the electromagnetic force increased changes gradually with the increase of the frequency.Under the condition of stated frequency, the size of the electromagnetic force increases with the increases of current.
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