电磁搅拌改善铸坯内部质量的实验研究

采用低碳钢进行静态浇铸实验,并就电磁搅拌对铸坯内部质量的影响进行了实验研究·实验结果表明,电磁搅拌可明显提高铸坯凝固组织的等轴晶率,同时又可以改善铸坯内的成分分布状况,从而提高铸坯的内部质量·在合理的电磁搅拌参数和浇铸参数条件下能够得到几乎为100%等轴晶的铸坯·

Experiments of Improving Inner Quality of Billet by Electromagnetic Stirring

The effect of electromagnetic stirring on the inner quality of the low carbon steel billet was investigated by static casting experiment. The experimental results show that the solidification structure of the casting billet is obviously improved, and its equiaxed ratio is greatly increased, while the carbon and sulfide in the billet are better distributed by the electromagnetic stirring technique, which improves the inner quality of the steel billet significantly. On the condition of reasonable electromagnetic stirring and casting parameters, the billet can be obtained with almost all equiaxed grains. But even in the casting billet of all equiaxed grains, the segregation of carbon corcentration still exists.