Development of Hirizontal Electromagnetic Casting Method.

在水平电磁铸造(HEMC)中，通过施加直流电流和直流磁通，使从水口流出的熔融金属悬浮。因此，这种工艺不仅可以消除钢锭与结晶器壁面接触造成的表面缺陷，而且可以实现近终形铸造。与铝工业已有的立式电磁铸造相比，该工艺具有投资少的优点，在铸造重金属方面具有良好的应用前景。为了阐明真空电磁铸造的基本工艺特点，进行了铋锡锌合金棒材和薄板的铸造试验，并对其工艺稳定性进行了理论分析。HEMC工艺保证了在理论分析确定的稳定操作条件下，可以得到形状理想、表面状况良好的产品。

In a horizontal electromagnetic casting (i.e.,HEMC), molten metal which flows out of a nozzle is levitated by imposing direct electric current and direct magnetic flux. Thus, this grocess makes it possible not only to eliminate the surface defects of ingot caused by contacting with wall of mold but also to intend near net shape casting. The additional advantage of this process is favorably applied to the casting of heavy metals at the smaller amount of the expence for investiment than that of the ordinary vertical electromagnetic casting (i.e.,VEMC) already used in the Aluminum industry.In this work, to clarfy the fundamental process characteristics of HEMC, the experiments casting rod and thin plate of Bi-Sn-Zn alooy were conducted, and the theoretical analysis on the process stability is developed. The HEMC process promises that the products with the desirable shape and the good surface conditions can be obtained under the stable operating conditions determined by the theoretical analysis.