论文部分内容阅读
根据麦克斯韦电磁理论,建立了280 mm×380 mm方坯连铸结晶器电磁搅拌的数学模型,并应用模型分析了结晶器内电磁场、电磁力的分布特征,以及电磁搅拌电流强度、频率等对电磁场和电磁力的影响。结果表明,旋转磁场在结晶器搅拌区域内产生电磁力,使钢液在水平方向形成旋转流动;电磁搅拌所产生的磁感应强度的大小与搅拌电流大小成线性关系,而在低频率搅拌条件下频率的大小对电磁搅拌强度的影响较小。
According to Maxwell’s electromagnetism theory, the mathematical model of electromagnetic stirring of 280 mm × 380 mm billet continuous casting mold was established, and the distribution characteristics of electromagnetic field and electromagnetic force in the mold were analyzed by using the model. The effects of electromagnetic stirring current intensity and frequency on electromagnetic field And the impact of electromagnetic force. The results show that the rotating magnetic field generates electromagnetic force in the agitator region of the mold to make the molten steel rotate in the horizontal direction. The magnitude of the magnetic induction generated by the electromagnetic stirring is linear with the magnitude of the agitation current. Under low frequency agitation, the frequency The size of the electromagnetic stirring intensity less affected.