Continuous Casting of Magnesium Alloy Billet Using Electromagnetic Fields
Currently, magnesium billets produced by ingot casting or direct chill casting process, result in low-quality of surface and productivity. Continuous casting technology for high-quality surface billets with fine-grained and homogeneous microstructure can be a solution for the cost barrier breakthrough. The latent heat of fusion per weight (J/g) of magnesium is similar to that of other metals, however, considering the heat emitted to the mould surface during continuous casting in meniscus region and converting it to the latent heat of fusion per volume, magnesium will be rapidly solidified in the mould during continuous casting, which induces subsequent surface defect formation. In this study, electromagnetic casting and stirring (EMC and EMS) techniques is proposed to control solidification process conveniently by compensating the low latent heat of solidification by volume and to fabricate magnesium billets of high quality surface.
magnesium billet latent heat electromagnetic continuous casting EMC EMS
Myoung-Gyun Kim Joon-Pyo Park Jong Ho Kim
Research Institute of Industrial Science and Technology,Pohang,790330,Korea
国际会议
上海
英文
2008-10-13（万方平台首次上网日期，不代表论文的发表时间）