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通过对现有４种液态金属的无容器电磁约束近终成形技术优缺点的论述，提出一种把无污染熔炼和电磁成形融为一体的全新技术——近似零件形状的高频电磁约束成形技术，对这５种电磁约束成形技术的原理分为４个阶段：（１）初始加热阶段；（２）部分熔化电磁约束成形阶段；（３）完全熔化约束成形阶段；（４）最终约束成形阶段。并对各阶段进行了较全面的阐述，获得电磁约束最终形状所需电磁场分布以及液态金属能在电磁场作用下稳定成形需满足的条件。最后探讨了该技术进一步应用及其存在的问题
Based on the discussion of the advantages and disadvantages of the existing four types of metal-based containerless electromagnetic confinement near-end forming technology, a new technology that combines non-polluting smelting and electromagnetic forming, a high-frequency electromagnetic confinement shaping Technology, the principle of these five kinds of electromagnetic constraint forming technology is divided into four stages: (1) the initial heating stage; (2) partially melted electromagnetic confinement stage; (3) completely melt confinement stage; (4) the final constraint forming stage. And all stages of a more comprehensive exposition, to obtain the electromagnetic confinement required shape of the final electromagnetic field distribution and liquid metal can be stable under the action of electromagnetic fields to be formed under the conditions required. Finally, the further application of the technology and its existing problems are discussed