电磁冷坩埚技术及其应用

Electromagnetic Cold Crucible Technology and Its Application

摘要:

电磁冷坩埚技术是l项尖端技术，被广泛用于活泼金属、难熔和特种材料的熔炼和成形。本文介绍了电磁冷坩埚技术的基本原理和优点：探讨了坩埚结构和电源参数对坩埚使用性能的影响，坩埚结构包括坩埚分瓣数、分瓣形状、坩埚质量和开缝宽度，电源参数包括电源频率、电压和电流，以及其它参数如被熔材料的物性、屏蔽罩和感应线圈位置对坩埚磁场的影响。并且综述了电磁冷坩埚技术在国内外的研究和应用领域以及存在的问题，并展望了该技术未来的发展。

Abstract:

As frontiers of technology, electromagnetic cold crucible technology has been applied to melting and forming of reactive metals, refractory and rare metals. The basic theory and the advantages of this technology are introduced. Constructions of cold crucible and electrical parameters effect on the use of cold crucible are discussed. To be more specific, the constructions of cold crucible include numbers and shape of segment, weight of cold crucible and width of slit, and electrical parameters include frequency, voltage and current intensity. Other factors, such as physical properties of the metal, positions of the shield and the induction coil, are also discussed. Research and application of cold crucible technology in the world are overviewed and difficulties in applying this technology are pointed out. Cold crucible technology will be a hopeful and important technique in the 21st century.